Factory Workshop Manual
Make
Chevrolet
Model
Equinox Fwd
Engine and year
V6-3.4L (2007)
Please navigate through the PDF using the options
provided by OnlyManuals.com on the sidebar.
This manual was submitted by
Anonymous
Date
1st January 2018
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm
Module, (Vehicle Antitheft) > Component Information > Locations
Alarm Module: Locations
Immobilizer Component Views
Steering Column
1 - Turn Signal / Multifunction Switch 2 - Inflatable Restraint Steering Wheel Module Coil 3 Windshield Wiper / Washer Switch 4 - Theft Deterent Module 5 - Power Steering Motor 6 - Power
Steering Control Module (PSCM) 7 - Ignition Key Cylinder Lock Solenoid 8 - Ignition Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm
Module, (Vehicle Antitheft) > Component Information > Locations > Page 7
Theft Deterrent Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm
Module, (Vehicle Antitheft) > Component Information > Locations > Page 8
Alarm Module: Service and Repair
Theft Deterrent Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Central Control Module > Component Information > Locations
Central Control Module: Locations
Entertainment/Communication Component Views
Behind the I/P Cluster
1 - Instrument Panel cluster (IPC) 2 - I/P Trim 3 - Vehicle communication Interface Module (VCIM)
(UE1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Central Control Module > Component Information > Service and Repair > Communication Interface Module Battery
Replacement
Central Control Module: Service and Repair Communication Interface Module Battery Replacement
Communication Interface Module Battery Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Central Control Module > Component Information > Service and Repair > Communication Interface Module Battery
Replacement > Page 14
Central Control Module: Service and Repair Communication Interface Module Replacement
Communication Interface Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 >
Campaign - Unwanted Repeat Calls to OnStar(R)
Technical Service Bulletin # 10037 Date: 100420
Campaign - Unwanted Repeat Calls to OnStar(R)
CUSTOMER SATISFACTION
Bulletin No.: 10037
Date: April 20, 2010
Subject: 10037 - Unwanted Repeat Calls to OnStar(R)
Models:
2003 Buick LeSabre 2004-2006 Buick Rendezvous 2005 Buick LeSabre, Terraza 2005-2006 Buick
LaCrosse/Allure 2006-2008 Buick Lucerne 2008 Buick LaCrosse/Allure 2008-2009 Buick Enclave
2003 Cadillac CTS 2004 Cadillac Escalade 2004-2005 Cadillac CTS-V, Deville 2005 Cadillac
Escalade ESV, SRX 2005-2006 Cadillac STS 2005-2008 Cadillac CTS 2006-2008 Cadillac DTS
2007 Cadillac Escalade, Escalade EXT 2007-2008 Cadillac Escalade ESV 2008 Cadillac SRX,
STS 2002 Chevrolet Impala 2003-2008 Chevrolet Suburban 2003-2009 Chevrolet Silverado
2004-2008 Chevrolet Impala 2005 Chevrolet Colorado, Corvette, Malibu 2005-2006 Chevrolet
Uplander 2005-2008 Chevrolet Avalanche, Tahoe, TrailBlazer 2006 Chevrolet HHR, Monte Carlo
2006-2008 Chevrolet Equinox 2007-2008 Chevrolet Corvette 2008 Chevrolet HHR 2008-2009
Chevrolet Cobalt, Colorado, Malibu, Uplander 2003 GMC Envoy XL, Sierra, Yukon XL 2004-2008
GMC Yukon 2005-2009 GMC Sierra 2005-2008 GMC Yukon XL 2006-2008 GMC Envoy 2007
GMC Canyon 2007-2009 GMC Acadia 2006 HUMMER H2 2006-2008 HUMMER H3 2008
HUMMER H2 2003 Oldsmobile Silhouette 2005 Montana SV6 2005-2008 Pontiac Grand Prix 2006
Pontiac G6, Vibe 2007 Pontiac Montana SV6 2007-2008 Pontiac Solstice 2008 Pontiac G6, Torrent
2008-2009 Pontiac G5, G8 2009 Pontiac G3, Montana SV6 2005-2007 Saturn ION
2006-2009Saturn VUE 2007-2008 Saturn AURA, OUTLOOK, SKY Equipped with OnStar(R) (RPO
UE1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 >
Campaign - Unwanted Repeat Calls to OnStar(R) > Page 23
THIS PROGRAM IS IN EFFECT UNTIL APRIL 30, 2011.
Condition
Certain 2002-2009 model year vehicles equipped with OnStar(R) may have a condition in which
the vehicle's OnStar(R) system repeatedly makes incomplete calls to OnStar(R) without the
vehicle's occupant(s) input or knowledge. Customer initiated Blue Button call, Emergency calls,
and Automatic Crash Notification calls will also fail to establish a data connection with the
OnStar(R) Call Center. Eventually, the customer's call will connect as a voice only line and the
customer will be able to talk with an OnStar(R) advisor; however, the advisor will not get crucial
customer data such as vehicle identification and location.
Correction
Dealers/retailers are to replace the OnStar(R) module (VCIM).
Vehicles Involved
Involved are certain 2002-2009 model year vehicles equipped with OnStar(R), and built within
these VIN breakpoints:
Note:
Some model years/models have only one vehicle involved.
Important Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using
GMVIS (dealers/retailers using WINS) or the Investigate Vehicle History link (dealers/retailers using
GWM). Not all vehicles within the above breakpoints may be involved.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided to dealers/retailers through the GM GlobalConnect Recall Reports. Dealers/retailers
will not have a report available if they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this program is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
program.
Parts Information
US: OnStar(R) modules required for this program are to be obtained by contacting Autocraft
Electronics via the web at www.autocraft.com, and selecting the catalog item that contains bulletin
number 10037 (or PIC 4893B), or by calling 1-800-336-3998. Dealer must provide the VIN, R.O.
number, and the current vehicle mileage.
Canada: OnStar(R) modules required for this program are to be obtained by contacting MASS
Electronics at 1-877-410-6277. Dealer must provide the VIN, R.O. number, and the current vehicle
mileage.
DO NOT ORDER ONSTAR(R) MODULES FROM GENERAL MOTORS CUSTOMER CARE AND
AFTERSALES (GMCC&A;), SATURN SERVICE PARTS OPERATION (SSPO), OR THE
TECHNICAL ASSISTANCE CENTER (TAC).
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
1. Submit a claim using the table below.
2. Courtesy Transportation - For dealers/retailers using WINS, submit using normal labor code; for
dealers/retailers using GWM - submit as Net Item under the repair labor code.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 >
Campaign - Unwanted Repeat Calls to OnStar(R) > Page 24
* Dealers using WINs: Add 0.2 hours to the labor time for administrative allowance for the module
exchange.
Dealers using GWM: Submit 0.2 hours administrative allowance under "Administration Time" for
the module exchange.
** The $25 represents the additional net amount allowed for the module exchange.
*** Dealers are to claim only administrative allowance of 0.2 hours when the module is replaced by
Masscomp's Mobile Unit. Dealers using WINS should submit the 0.2 hours administrative
allowance in labor time. Dealer using GWM should submit the 0.2 hours administrative allowance
under Administrative Time.
Customer Notification
OnStar will notify customers of this program on their vehicle.
Dealer Program Responsibility
All unsold new vehicles in dealers'/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through April 30, 2011.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for
your use in contacting customers. Program follow-up cards should not be used for this purpose,
since the customer may not as yet have received the notification letter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 >
Campaign - Unwanted Repeat Calls to OnStar(R) > Page 25
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through April 30, 2011, you must take the steps necessary to be sure
the program correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Service Procedure
Note Do NOT replace the inside rear view mirror in tandem with this concern. The mirror has no
bearing on this specific issue.
1. Remove the OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module (VCIM)
in SI). Refer to SI for module removal instructions.
Note Inform customer that all Bluetooth devices must be paired with the new VCIM. Bluetooth
devices that have not been paired to the new VCIM will not function properly.
2. Install the new OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module
(VCIM) in SI). Refer to SI for module installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R)
Technical Service Bulletin # 10037 Date: 100420
Campaign - Unwanted Repeat Calls to OnStar(R)
CUSTOMER SATISFACTION
Bulletin No.: 10037
Date: April 20, 2010
Subject: 10037 - Unwanted Repeat Calls to OnStar(R)
Models:
2003 Buick LeSabre 2004-2006 Buick Rendezvous 2005 Buick LeSabre, Terraza 2005-2006 Buick
LaCrosse/Allure 2006-2008 Buick Lucerne 2008 Buick LaCrosse/Allure 2008-2009 Buick Enclave
2003 Cadillac CTS 2004 Cadillac Escalade 2004-2005 Cadillac CTS-V, Deville 2005 Cadillac
Escalade ESV, SRX 2005-2006 Cadillac STS 2005-2008 Cadillac CTS 2006-2008 Cadillac DTS
2007 Cadillac Escalade, Escalade EXT 2007-2008 Cadillac Escalade ESV 2008 Cadillac SRX,
STS 2002 Chevrolet Impala 2003-2008 Chevrolet Suburban 2003-2009 Chevrolet Silverado
2004-2008 Chevrolet Impala 2005 Chevrolet Colorado, Corvette, Malibu 2005-2006 Chevrolet
Uplander 2005-2008 Chevrolet Avalanche, Tahoe, TrailBlazer 2006 Chevrolet HHR, Monte Carlo
2006-2008 Chevrolet Equinox 2007-2008 Chevrolet Corvette 2008 Chevrolet HHR 2008-2009
Chevrolet Cobalt, Colorado, Malibu, Uplander 2003 GMC Envoy XL, Sierra, Yukon XL 2004-2008
GMC Yukon 2005-2009 GMC Sierra 2005-2008 GMC Yukon XL 2006-2008 GMC Envoy 2007
GMC Canyon 2007-2009 GMC Acadia 2006 HUMMER H2 2006-2008 HUMMER H3 2008
HUMMER H2 2003 Oldsmobile Silhouette 2005 Montana SV6 2005-2008 Pontiac Grand Prix 2006
Pontiac G6, Vibe 2007 Pontiac Montana SV6 2007-2008 Pontiac Solstice 2008 Pontiac G6, Torrent
2008-2009 Pontiac G5, G8 2009 Pontiac G3, Montana SV6 2005-2007 Saturn ION
2006-2009Saturn VUE 2007-2008 Saturn AURA, OUTLOOK, SKY Equipped with OnStar(R) (RPO
UE1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 31
THIS PROGRAM IS IN EFFECT UNTIL APRIL 30, 2011.
Condition
Certain 2002-2009 model year vehicles equipped with OnStar(R) may have a condition in which
the vehicle's OnStar(R) system repeatedly makes incomplete calls to OnStar(R) without the
vehicle's occupant(s) input or knowledge. Customer initiated Blue Button call, Emergency calls,
and Automatic Crash Notification calls will also fail to establish a data connection with the
OnStar(R) Call Center. Eventually, the customer's call will connect as a voice only line and the
customer will be able to talk with an OnStar(R) advisor; however, the advisor will not get crucial
customer data such as vehicle identification and location.
Correction
Dealers/retailers are to replace the OnStar(R) module (VCIM).
Vehicles Involved
Involved are certain 2002-2009 model year vehicles equipped with OnStar(R), and built within
these VIN breakpoints:
Note:
Some model years/models have only one vehicle involved.
Important Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using
GMVIS (dealers/retailers using WINS) or the Investigate Vehicle History link (dealers/retailers using
GWM). Not all vehicles within the above breakpoints may be involved.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided to dealers/retailers through the GM GlobalConnect Recall Reports. Dealers/retailers
will not have a report available if they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this program is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
program.
Parts Information
US: OnStar(R) modules required for this program are to be obtained by contacting Autocraft
Electronics via the web at www.autocraft.com, and selecting the catalog item that contains bulletin
number 10037 (or PIC 4893B), or by calling 1-800-336-3998. Dealer must provide the VIN, R.O.
number, and the current vehicle mileage.
Canada: OnStar(R) modules required for this program are to be obtained by contacting MASS
Electronics at 1-877-410-6277. Dealer must provide the VIN, R.O. number, and the current vehicle
mileage.
DO NOT ORDER ONSTAR(R) MODULES FROM GENERAL MOTORS CUSTOMER CARE AND
AFTERSALES (GMCC&A;), SATURN SERVICE PARTS OPERATION (SSPO), OR THE
TECHNICAL ASSISTANCE CENTER (TAC).
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
1. Submit a claim using the table below.
2. Courtesy Transportation - For dealers/retailers using WINS, submit using normal labor code; for
dealers/retailers using GWM - submit as Net Item under the repair labor code.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 32
* Dealers using WINs: Add 0.2 hours to the labor time for administrative allowance for the module
exchange.
Dealers using GWM: Submit 0.2 hours administrative allowance under "Administration Time" for
the module exchange.
** The $25 represents the additional net amount allowed for the module exchange.
*** Dealers are to claim only administrative allowance of 0.2 hours when the module is replaced by
Masscomp's Mobile Unit. Dealers using WINS should submit the 0.2 hours administrative
allowance in labor time. Dealer using GWM should submit the 0.2 hours administrative allowance
under Administrative Time.
Customer Notification
OnStar will notify customers of this program on their vehicle.
Dealer Program Responsibility
All unsold new vehicles in dealers'/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through April 30, 2011.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for
your use in contacting customers. Program follow-up cards should not be used for this purpose,
since the customer may not as yet have received the notification letter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 33
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through April 30, 2011, you must take the steps necessary to be sure
the program correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Service Procedure
Note Do NOT replace the inside rear view mirror in tandem with this concern. The mirror has no
bearing on this specific issue.
1. Remove the OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module (VCIM)
in SI). Refer to SI for module removal instructions.
Note Inform customer that all Bluetooth devices must be paired with the new VCIM. Bluetooth
devices that have not been paired to the new VCIM will not function properly.
2. Install the new OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module
(VCIM) in SI). Refer to SI for module installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing Impaired
Communications Control Module: All Technical Service Bulletins OnStar(R) - Availability for
Hearing Impaired
INFORMATION
Bulletin No.: 06-08-46-005B
Date: February 11, 2010
Subject: Availability of OnStar(R) for Hearing Impaired
Models:
2007-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn and Saab) Except 2007
Cadillac CTS Except 2007-2008 HUMMER H2, H2 SUT Except 2007 Pontiac Montana SV6 Except
2007-2010 Pontiac Vibe Except 2007 Saturn ION, VUE Except 2008 Saturn Astra
Supercede: This bulletin is being revised to add a Note regarding 2009 Bluetooth(R)-equipped
vehicles, additional models and model years. Please discard Corporate Bulletin Number
06-08-46-005A (Section 08 - Body and Accessories).
Important This service bulletin is not applicable to 'GM of Canada' dealers and retailers.
Note
On 2009 and newer model year vehicles equipped with the Bluetooth(R) feature (option code
UPF), when up-fitted with TTY capabilities, the Bluetooth(R) feature will be disabled.
OnStar with Text Telephone Capability (TTY)
General Motors is pleased to announce that the safety and security of OnStar is now available to
our deaf, hard of hearing and speech impaired customers. The current vehicles listed above, as
well as forthcoming vehicles equipped with OnStar hardware version 7.0 or higher, have the ability
to utilize texting telephones. Vehicle specific TTY capability can be determined by utilizing the VIN
lookup Tool. Additional information may be found by referring to www.onstar.com/tty.
TTY equipment allows people who are deaf, hard of hearing or speech impaired, in-vehicle access
to 911 and basic OnStar(R) services by pressing the OnStar(R) blue button or red emergency
button. The keypad provides a means to communicate by allowing customers to type messages
back and forth, with an OnStar(R) advisor or other party when using the OnStar(R) Hands-Free
Calling feature. A TTY is required at both ends of the conversation in order to communicate.
OnStar(R) Turn by Turn Navigation and Virtual Advisor are not available with the addition of TTY.
The Reimbursement Program
This equipment will be made available to eligible customers through GM Mobility and OnStar(R).
Under this program, the customer must complete a GM Mobility application form. To take
advantage of the program, vehicles must be adapted at the time of delivery for purchase / lease
and a dealer claim ($1,000 Maximum per GM Mobility guidelines) with the application form
submitted to GM Mobility. Saab dealers must fax documents. GM Dealers will receive electronic
reimbursement directly from GM Mobility. Saab dealers will receive a check directly from
OnStar(R). Additional questions or concerns should be directed to the OnStar Dealer Center.
How to Order
To order the dealer installed kit, contact AutoCraft Electronics or via the web at www.autocraft.com.
The kit consists of an OnStar Interface Module, a Dial Pad (for making calls), OTIM wiring harness,
the TTY device, installation/Tech 2(R) programming instructions and owner's guide.
Warranty Information
The Ultra-Tec Compact C TTY device is manufactured by an independent manufacturer and is
covered by the manufacturer's warranty. It is not covered under the GM New Vehicle Limited
Warranty. All other parts (OTIM, dial pad and OTIM wiring harness) are covered by the standard
GM new vehicle parts and labor warranty. Replacement parts are available through AutoCraft
Electronics. Contact AutoCraft Electronics or via the web.
Warranty claims for the OTIM, dial pad and OTIM wiring harness should be submitted through
normal warranty procedures using a sublet warranty claim with GM Labor Operation R5140.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing Impaired > Page 38
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing Impaired
Communications Control Module: All Technical Service Bulletins OnStar(R) - Availability for
Hearing Impaired
INFORMATION
Bulletin No.: 06-08-46-005B
Date: February 11, 2010
Subject: Availability of OnStar(R) for Hearing Impaired
Models:
2007-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn and Saab) Except 2007
Cadillac CTS Except 2007-2008 HUMMER H2, H2 SUT Except 2007 Pontiac Montana SV6 Except
2007-2010 Pontiac Vibe Except 2007 Saturn ION, VUE Except 2008 Saturn Astra
Supercede: This bulletin is being revised to add a Note regarding 2009 Bluetooth(R)-equipped
vehicles, additional models and model years. Please discard Corporate Bulletin Number
06-08-46-005A (Section 08 - Body and Accessories).
Important This service bulletin is not applicable to 'GM of Canada' dealers and retailers.
Note
On 2009 and newer model year vehicles equipped with the Bluetooth(R) feature (option code
UPF), when up-fitted with TTY capabilities, the Bluetooth(R) feature will be disabled.
OnStar with Text Telephone Capability (TTY)
General Motors is pleased to announce that the safety and security of OnStar is now available to
our deaf, hard of hearing and speech impaired customers. The current vehicles listed above, as
well as forthcoming vehicles equipped with OnStar hardware version 7.0 or higher, have the ability
to utilize texting telephones. Vehicle specific TTY capability can be determined by utilizing the VIN
lookup Tool. Additional information may be found by referring to www.onstar.com/tty.
TTY equipment allows people who are deaf, hard of hearing or speech impaired, in-vehicle access
to 911 and basic OnStar(R) services by pressing the OnStar(R) blue button or red emergency
button. The keypad provides a means to communicate by allowing customers to type messages
back and forth, with an OnStar(R) advisor or other party when using the OnStar(R) Hands-Free
Calling feature. A TTY is required at both ends of the conversation in order to communicate.
OnStar(R) Turn by Turn Navigation and Virtual Advisor are not available with the addition of TTY.
The Reimbursement Program
This equipment will be made available to eligible customers through GM Mobility and OnStar(R).
Under this program, the customer must complete a GM Mobility application form. To take
advantage of the program, vehicles must be adapted at the time of delivery for purchase / lease
and a dealer claim ($1,000 Maximum per GM Mobility guidelines) with the application form
submitted to GM Mobility. Saab dealers must fax documents. GM Dealers will receive electronic
reimbursement directly from GM Mobility. Saab dealers will receive a check directly from
OnStar(R). Additional questions or concerns should be directed to the OnStar Dealer Center.
How to Order
To order the dealer installed kit, contact AutoCraft Electronics or via the web at www.autocraft.com.
The kit consists of an OnStar Interface Module, a Dial Pad (for making calls), OTIM wiring harness,
the TTY device, installation/Tech 2(R) programming instructions and owner's guide.
Warranty Information
The Ultra-Tec Compact C TTY device is manufactured by an independent manufacturer and is
covered by the manufacturer's warranty. It is not covered under the GM New Vehicle Limited
Warranty. All other parts (OTIM, dial pad and OTIM wiring harness) are covered by the standard
GM new vehicle parts and labor warranty. Replacement parts are available through AutoCraft
Electronics. Contact AutoCraft Electronics or via the web.
Warranty claims for the OTIM, dial pad and OTIM wiring harness should be submitted through
normal warranty procedures using a sublet warranty claim with GM Labor Operation R5140.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Communications Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing Impaired > Page 44
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: > 05-08-46-004C
> Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned
Emergency Contact Module: Customer Interest OnStar(R) - Number Incorrect/Incorrectly Assigned
INFORMATION
Bulletin No.: 05-08-46-004C
Date: December 23, 2010
Subject: OnStar(R) Phone Number Concerns (Phone Number Incorrect/Assigned to Another
Vehicle/Phone) That Occur During Diagnosis of OnStar(R) System
Models:
2000-2011 GM Passenger Cars and Trucks Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update model years up to 2011. Please discard
Corporate Bulletin Number 05-08-46-004B (Section 08 - Body and Accessories).
During diagnosis of an OnStar(R) concern, the technician may be told that the OnStar(R) phone
number is incorrect or tied to another vehicle and/or phone of some kind. To resolve these
concerns, the Tech 2(R) with software version 22.005 (or higher), has the capability to change the
OnStar(R) phone number.
Service Procedure
1. With the Tech 2(R), build the vehicle to specifications within the Diagnostics area of the Tech
2(R). 2. For vehicles with physical-based diagnostics - under Body, go to the OnStar(R) section.
Then select the Special Functions menu.
For vehicles with functional-based diagnostics - under Body and Accessories, go to the Cellular
Communication section. Select Module Setup and then Vehicle Communication Interface Module.
3. Locate the Program Phone Number prompt and select it. The original phone number will be
displayed on the Tech 2(R) screen. 4. Contact the OnStar(R) team at the GM Technical Assistance
Center (TAC) to obtain a new phone number. 5. Highlight the digits of the phone number one at a
time and enter the new phone number using the number keys on the Tech 2(R). 6. Press the Soft
key at the base of the screen for Done once these numbers have been changed on the screen. 7.
Press the Soft key for Done again. The area code or new phone number has now been
programmed into the phone. 8. Cycle the ignition to Off and open the driver's door. 9. Press the
blue OnStar(R) button to make sure that a normal connection can be made to the OnStar(R) call
center. If applicable, make sure the
Hands-Free Calling (HFC) works properly by making a phone call.
10. If the system is working properly, fax or voicemail a case closing into the OnStar(R) team at
TAC with the results. Dealers in Canada should
submit case closing information through the GM infoNET.
Please follow this diagnostic process thoroughly and complete each step. If the condition exhibited
is resolved WITHOUT completing every step, the remaining steps do not need to be performed. If
the procedure above does not resolve the condition, you must contact TAC for further assistance.
This diagnostic approach was developed specifically for this condition and should not automatically
be used for other vehicles with similar symptoms.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
For vehicles repaired under warranty, use the table.
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: > 05-08-46-004C
> Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned > Page 53
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: > 02-08-46-006C
> Jan > 08 > OnStar(R) - Incorrect GPS Position Reported During Call
Emergency Contact Module: Customer Interest OnStar(R) - Incorrect GPS Position Reported
During Call
Bulletin No.: 02-08-46-006C
Date: January 08, 2008
INFORMATION
Subject: Incorrect OnStar(R) Global Positioning System (GPS) Location Reported During
OnStar(R) Call
Models: 2000-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R)
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
02-08-46-006B (Section 08 - Body and Accessories).
A small number of the above-mentioned vehicles may exhibit a condition in which the vehicle
reports an inaccurate location to the OnStar(R) Call Center. This condition can only be identified
via a button press to the OnStar(R) Call Center by the customer. Call Center personnel will be able
to identify this inaccurate location condition. Customers will then be notified through the mail by
OnStar(R) if their vehicle exhibits this condition. Once this condition has been identified OnStar(R)
will instruct the customer to return to the dealership to have this condition corrected.
It is not necessary to reconfigure the vehicle after the following procedure.
In order to correct this condition you must cycle power to the OnStar(R) system. This can be done
by either removing the fuses powering the OnStar(R) system or disconnecting the OnStar(R)
module (VCIM) from the vehicle. As a last resort you can disconnect the vehicle's battery.
The power needs to be removed from the system for approximately 15 minutes.
After completing this procedure the vehicle should be taken to an area with an unobstructed view of
the sky. The vehicle should be kept running for approximately 10 minutes to allow the vehicle to
reacquire the global positioning system (GPS). Then contact the OnStar(R) Call Center via the blue
OnStar(R) button and ask the advisor to verify the GPS position.
If the OnStar(R) advisor still has an inaccurate GPS location refer to the Navigation Systems and
Cellular Communications sub-sections in the Service Manual in order to diagnose and repair the
concern. If the normal diagnostics lead to module replacement you will need to contact Technical
Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in the
diagnosis and if appropriate order a replacement part. Replacement parts are usually shipped out
within 24 hours and a pre-paid return package label will be included for returning the faulty part. By
returning the faulty part you will avoid a significant non-return core charge.
Warranty Information (excluding Saab US Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab US Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: > 02-08-46-006C
> Jan > 08 > OnStar(R) - Incorrect GPS Position Reported During Call > Page 58
For vehicles repaired under warranty use, the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: > 02-08-46-007C
> Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues
Emergency Contact Module: Customer Interest OnStar(R) - Loss of GPS Signal/Hands Free Issues
Bulletin No.: 02-08-46-007C
Date: November 19, 2007
INFORMATION
Subject: Information on OnStar(R) System - Possible Loss of GPS Signal, Hands-Free Calling
Minutes Expire Prematurely and/or Inability to Add Hands-Free Calling Minutes
Models: 2001-2008 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R) System (RPO UE1)
Supercede:
This bulletin is being revised to add the 2008 model year, warranty information and to provide GPS
signal recovery steps (under Dealer Action heading) to do PRIOR to determining if the VIU/VCIM
needs replacement. Please discard Corporate Bulletin Number 02-08-46-007B (Section 08 - Body
& Accessories).
If the vehicle currently has analog-upgradable OnStar(R) hardware, then the customer should be
made aware of the digital upgrade program per the latest version of Service Bulletin #
05-08-46-006. Any analog OnStar system that is not upgraded prior to the end of 2007 will be
deactivated due to the upcoming phase-out of the analog cellular network in the U.S. and Canada.
If the vehicle has recently been upgraded or has had a service replacement unit installed, this
bulletin may not be applicable.
Certain 2001-2008 model year vehicles equipped with OnStar(R) may exhibit a condition with the
Global Positioning System (GPS) that causes inaccuracies in the GPS clock. The GPS system is
internal to the OnStar(R) Vehicle Interface Unit (VIU) or the Vehicle Communication Interface
Module (VCIM). This inaccuracy can result in a symptom where the OnStar(R) Call Center is
unable to obtain an accurate GPS signal, hands-Free Calling minutes expire prematurely and/or
the inability to add Hands-Free calling minutes.
Customer Notification
OnStar(R) will notify the customer by mail with instructions to contact their dealership service
department.
Dealer Action
Not all vehicles will require VIU/VCIM replacement.
The GPS signal in some vehicles may be recoverable. To determine if the signal is recoverable,
simply connect the Tech2(R) and using the GPS information data display option, observe the GPS
date and time. If the date/time stamps are equal to a date approximately 19 years in the future, the
GPS clock has exceeded its capacity and the VIU/VCIM will need to be replaced. If the date/time
stamp is in the past or near future, the GPS clock has simply generated an inaccurate value and
may be recoverable by performing the following power-up reset.
To initiate a power-up reset, battery voltage (batt. +) must be removed from the VIU/VCIM. The
preferred methods, in order, of initiating the reset are outlined below.
Remove the fuse that supplies Battery positive (Batt. +) voltage to the module (refer to the
applicable Service Information schematics for the appropriate fuse).
The next preferred method is to remove the connector to the OnStar(R) unit that Batt + is
contained.
The least preferable method is to remove the negative terminal of the vehicle battery. This will not
only initiate the power-up reset, but it may also result in the loss of radio presets and other stored
personalization information/settings in other modules as well.
After initiating the power-up reset, the GPS data will be set to the defaulted date and time and will
require an acquisition of the GPS signal in order to gain the proper date and time.
Acquiring the GPS signal requires running the vehicle in an open/unobstructed view of the sky.
First, contact OnStar(R) Technical Support by pressing the blue button. Allow the OnStar(R)
Technical Advisor to activate the GPS recovery process. This should take approximately 10
minutes. Continue to
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Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: > 02-08-46-007C
> Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues > Page 63
monitor the Tech2(R) for the current time and date. REMINDER - Keep in mind that the time
displayed on the Tech2(R) is in Greenwich Mean Time (GMT) and the offset is based on the time
zones relationship to GMT.
If replacement of the VIU/VCIM is necessary, you MUST reconfigure the OnStar® system. Failure
to reconfigure the system will result in an additional customer visit for repair. OnStar® VIU,
Generations 2 and 3, will require the technician to press the blue OnStar® button to reconfigure the
vehicle with an OnStar® advisor.
OnStar(R) VCIM, Generations 4-7 will require the technician to reconfigure the vehicle with the use
of the TIS2WEB and SPS applications (pass thru only), along with the Tech2(R).
The configuration and set-up procedure is a two-step process that must be completed step-by-step
without interruption or delay in between each step. This procedure enables an automated activation
without a button press by the technician to the OnStar(R) Call Center. Following this procedure, it
may take up to 24 hours for all OnStar(R) services to be fully activated.
How to Order Parts
If the OnStar(R) GPS date/time stamp is non-recoverable and the unit needs to be replaced,
dealers in the U.S. should contact Autocraft Electronics select the catalog item that contains this
bulletin number. Canadian dealers should contact MASS Electronics.
Dealers DO NOT need to call the GM Technical Assistance Center (TAC) for replacement
approval. Autocraft Electronics and MASS Electronics will be responsible for verifying that the
subject vehicle is a candidate for a replacement VIU/VCIM.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: > 02-08-46-007C
> Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues > Page 64
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Emergency Contact Module: > 05-08-46-004C > Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Number
Incorrect/Incorrectly Assigned
INFORMATION
Bulletin No.: 05-08-46-004C
Date: December 23, 2010
Subject: OnStar(R) Phone Number Concerns (Phone Number Incorrect/Assigned to Another
Vehicle/Phone) That Occur During Diagnosis of OnStar(R) System
Models:
2000-2011 GM Passenger Cars and Trucks Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update model years up to 2011. Please discard
Corporate Bulletin Number 05-08-46-004B (Section 08 - Body and Accessories).
During diagnosis of an OnStar(R) concern, the technician may be told that the OnStar(R) phone
number is incorrect or tied to another vehicle and/or phone of some kind. To resolve these
concerns, the Tech 2(R) with software version 22.005 (or higher), has the capability to change the
OnStar(R) phone number.
Service Procedure
1. With the Tech 2(R), build the vehicle to specifications within the Diagnostics area of the Tech
2(R). 2. For vehicles with physical-based diagnostics - under Body, go to the OnStar(R) section.
Then select the Special Functions menu.
For vehicles with functional-based diagnostics - under Body and Accessories, go to the Cellular
Communication section. Select Module Setup and then Vehicle Communication Interface Module.
3. Locate the Program Phone Number prompt and select it. The original phone number will be
displayed on the Tech 2(R) screen. 4. Contact the OnStar(R) team at the GM Technical Assistance
Center (TAC) to obtain a new phone number. 5. Highlight the digits of the phone number one at a
time and enter the new phone number using the number keys on the Tech 2(R). 6. Press the Soft
key at the base of the screen for Done once these numbers have been changed on the screen. 7.
Press the Soft key for Done again. The area code or new phone number has now been
programmed into the phone. 8. Cycle the ignition to Off and open the driver's door. 9. Press the
blue OnStar(R) button to make sure that a normal connection can be made to the OnStar(R) call
center. If applicable, make sure the
Hands-Free Calling (HFC) works properly by making a phone call.
10. If the system is working properly, fax or voicemail a case closing into the OnStar(R) team at
TAC with the results. Dealers in Canada should
submit case closing information through the GM infoNET.
Please follow this diagnostic process thoroughly and complete each step. If the condition exhibited
is resolved WITHOUT completing every step, the remaining steps do not need to be performed. If
the procedure above does not resolve the condition, you must contact TAC for further assistance.
This diagnostic approach was developed specifically for this condition and should not automatically
be used for other vehicles with similar symptoms.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Emergency Contact Module: > 05-08-46-004C > Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned > Page 70
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Emergency Contact Module: > 02-08-44-007D > May > 09 > OnStar(R) - Negative Impact of Cloth/Vinyl Roofs
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Negative Impact of
Cloth/Vinyl Roofs
INFORMATION
Bulletin No.: 02-08-44-007D
Date: May 12, 2009
Subject: Negative Impact of Dealer-Installed Cloth/Vinyl Roofs on XM Radio and/or OnStar(R)
Systems
Models:
2002-2009 Passenger Cars and Trucks (Including Saturn) 2003-2009 HUMMER H2 2006-2009
HUMMER H3 2005-2009 Saab 9-7X with XM Radio (RPO U2K) and/or OnStar(R) (RPO UE1)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
include the 2009 model year. Please discard Corporate Bulletin Number 02-08-44-007C (Section
08 - Body and Accessories).
..............................................................................................................................................................
..................................................................................
Dealers should not install a cloth or vinyl roof on vehicles that have been ordered with the XM radio
option (RPO U2K) and/or OnStar(R) (RPO UE1). The performance of these systems may be
negatively impacted by the installation of the cloth/vinyl roof. Additionally, water leaks may result
from installing a cloth or vinyl roof on vehicles with roof-mounted antenna systems. Relocating the
antenna to another spot on the vehicle exterior, in order to install a cloth or vinyl roof, is not advised
either. The performance of the OnStar(R) and XM Radio antennas has been optimized for their
current locations. Relocating the antennas may result in a performance degradation.
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Emergency Contact Module: > 06-08-46-008C > Sep > 08 > OnStar(R) - Analog/Digital System Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Analog/Digital System
Information
INFORMATION
Bulletin No.: 06-08-46-008C
Date: September 18, 2008
Subject: Information on OnStar(R) Dual-Mode (Analog/Digital) Systems
Models
Supercede:
This bulletin is being revised to correct the model year range for the Chevrolet Impala and Monte
Carlo and update the reference to GM Dealerworld. Please discard Corporate Bulletin Number
06-08-46-008B (Section 08 - Body and Accessories).
All 2000-2003 model year vehicles equipped with OnStar® from the list above were built with
Analog/Digital-Ready OnStar(R) Hardware. Some of these vehicles may have been upgraded to
Dual-Mode (Analog/Digital).
Certain 2004-2005 model year vehicles equipped with OnStar(R) from the list above may have
been either:
^ Originally built at the factory with Dual-Mode (Analog/Digital) OnStar(R) Hardware with
Dual-Mode (Analog/Digital) OnStar(R) Hardware
OR
^ Upgraded to Dual-Mode (Analog/Digital) Hardware
All 2006 model year and newer vehicles equipped with OnStar(R) were built at the factory with
Dual-Mode (Analog/Digital) OnStar(R) Hardware.
If a vehicle has Dual-Mode (Analog/Digital) OnStar(R) Hardware, then the system is capable of
operating on both the analog and digital cellular
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Emergency Contact Module: > 06-08-46-008C > Sep > 08 > OnStar(R) - Analog/Digital System Information > Page 79
networks, and will not require an upgrade in connection with the cellular industry's transition to the
digital network.
In order to verify the type of OnStar(R) Hardware in a vehicle, type the VIN into the VIN look-up
tool, which is available at the OnStar(R) Online Enrollment website within GM GlobalConnect (for
U.S. dealers) or InfoNet (for Canadian dealers).
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Emergency Contact Module: > 08-08-46-004 > Aug > 08 > OnStar(R) - Aftermarket Device Interference Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Aftermarket Device
Interference Information
INFORMATION
Bulletin No.: 08-08-46-004
Date: August 14, 2008
Subject: Information on Aftermarket Device Interference with OnStar(R) Diagnostic Services
Models: 2009 and Prior GM Passenger Car and Truck (including Saturn) 2009 and Prior HUMMER
H2, H3 Models 2009 and Prior Saab 9-7X
with OnStar(R) (RPO UE1)
This bulletin is being issued to provide dealer service personnel with information regarding
aftermarket devices connected to the Diagnostic Link Connector (DLC) and the impact to
OnStar(R) diagnostic probes and Vehicle Diagnostic e-mails.
Certain aftermarket devices, when connected to the Diagnostic Link Connector, such as, but not
limited to, Scan Tools, Trip Computers, Fuel Economy Analyzers and Insurance Tracking Devices,
interfere with OnStar's ability to perform a diagnostic probe when requested (via a blue button call)
by a subscriber. These devices also prohibit the ability to gather diagnostic and tire pressure data
for a subscriber's scheduled OnStar(R) Vehicle Diagnostic (OVD) e-mail.
These aftermarket devices utilize the Vehicles serial data bus to perform data requests and/or
information gathering. When these devices are requesting data, OnStar(R) is designed not to
interfere with any data request being made by these devices as required by OBD II regulations.
The OnStar(R) advisor is unable to definitively detect the presence of these devices and will only
be able to inform the caller or requester of the unsuccessful or incomplete probe and may in some
cases refer the subscriber/requester to take the vehicle to a dealer for diagnosis of the concern.
When performing a diagnostic check for an unsuccessful or incomplete OnStar(R) diagnostic
probe, or for concerns regarding completeness of the OnStar(R) Vehicle Diagnostic (OVD) e-mail,
verify that an aftermarket device was not present at the time of the requested probe. Regarding the
OVD e-mail, if an aftermarket device is interfering (including a Scan Tool of any type), the e-mail
will consistently display a "yellow" indication in diagnostics section for all vehicle systems except
the OnStar(R) System and Tire Pressure data (not available on all vehicles) will not be displayed
(i.e. section is collapsed). Successful diagnostic probes and complete OVD e-mails will resume
following the removal or disconnecting of the off-board device.
Disclaimer
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Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Emergency Contact Module: > 00-08-46-004C > Jan > 08 > OnStar(R) - Re-establishing OnStar(R) Communications
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Re-establishing OnStar(R)
Communications
Bulletin No.: 00-08-46-004C
Date: January 17, 2008
INFORMATION
Subject: Re-establishing Communications with OnStar(R) Center After Battery Disconnect
Models: 2000-2008 GM Passenger Cars and Trucks (Including Saturn and Saab)
with Digital OnStar(R) (RPO UE1)
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 00-08-46-004B (Section 08 - Body and Accessories).
When servicing any of the above models and a battery cable is disconnected or power to the
OnStar(R) Vehicle Communication Interface Module (VCIM) is interrupted for any reason the
following procedure must be performed to verify proper Global Positioning System (GPS) function.
Never swap OnStar(R) Vehicle Communication Interface Modules (VCIM) from other vehicles.
Transfer of OnStar(R) modules from other vehicles should not be done. Each OnStar(R) module
has a unique identification number. The VCIM has a specific Station Identification (STID). This
identification number is used by the National Cellular Telephone Network and OnStar(R) systems
and is stored in General Motors Vehicle History files by VIN.
After completing ALL repairs to the vehicle you must perform the following procedure:
Move the vehicle into an open area of the service lot.
Sit in the vehicle with the engine running and the radio turned on for five minutes.
Press the OnStar(R) button in the vehicle.
When the OnStar(R) advisor answers ask the advisor to verify the current location of the vehicle.
If the vehicle location is different than the location the OnStar(R) advisor gives contact GM
Technical Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in
the diagnosis of a failed VCIM and, if appropriate, order a replacement part. Replacement parts are
usually shipped out within 24 hours, and a pre-paid return package label will be included for
returning the faulty part. By returning the faulty part, you will avoid a non-return core charge.
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Emergency Contact Module: > 02-08-46-006C > Jan > 08 > OnStar(R) - Incorrect GPS Position Reported During Call
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Incorrect GPS Position
Reported During Call
Bulletin No.: 02-08-46-006C
Date: January 08, 2008
INFORMATION
Subject: Incorrect OnStar(R) Global Positioning System (GPS) Location Reported During
OnStar(R) Call
Models: 2000-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R)
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
02-08-46-006B (Section 08 - Body and Accessories).
A small number of the above-mentioned vehicles may exhibit a condition in which the vehicle
reports an inaccurate location to the OnStar(R) Call Center. This condition can only be identified
via a button press to the OnStar(R) Call Center by the customer. Call Center personnel will be able
to identify this inaccurate location condition. Customers will then be notified through the mail by
OnStar(R) if their vehicle exhibits this condition. Once this condition has been identified OnStar(R)
will instruct the customer to return to the dealership to have this condition corrected.
It is not necessary to reconfigure the vehicle after the following procedure.
In order to correct this condition you must cycle power to the OnStar(R) system. This can be done
by either removing the fuses powering the OnStar(R) system or disconnecting the OnStar(R)
module (VCIM) from the vehicle. As a last resort you can disconnect the vehicle's battery.
The power needs to be removed from the system for approximately 15 minutes.
After completing this procedure the vehicle should be taken to an area with an unobstructed view of
the sky. The vehicle should be kept running for approximately 10 minutes to allow the vehicle to
reacquire the global positioning system (GPS). Then contact the OnStar(R) Call Center via the blue
OnStar(R) button and ask the advisor to verify the GPS position.
If the OnStar(R) advisor still has an inaccurate GPS location refer to the Navigation Systems and
Cellular Communications sub-sections in the Service Manual in order to diagnose and repair the
concern. If the normal diagnostics lead to module replacement you will need to contact Technical
Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in the
diagnosis and if appropriate order a replacement part. Replacement parts are usually shipped out
within 24 hours and a pre-paid return package label will be included for returning the faulty part. By
returning the faulty part you will avoid a significant non-return core charge.
Warranty Information (excluding Saab US Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab US Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Emergency Contact Module: > 02-08-46-006C > Jan > 08 > OnStar(R) - Incorrect GPS Position Reported During Call >
Page 92
For vehicles repaired under warranty use, the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Emergency Contact Module: > 02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Loss of GPS Signal/Hands
Free Issues
Bulletin No.: 02-08-46-007C
Date: November 19, 2007
INFORMATION
Subject: Information on OnStar(R) System - Possible Loss of GPS Signal, Hands-Free Calling
Minutes Expire Prematurely and/or Inability to Add Hands-Free Calling Minutes
Models: 2001-2008 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R) System (RPO UE1)
Supercede:
This bulletin is being revised to add the 2008 model year, warranty information and to provide GPS
signal recovery steps (under Dealer Action heading) to do PRIOR to determining if the VIU/VCIM
needs replacement. Please discard Corporate Bulletin Number 02-08-46-007B (Section 08 - Body
& Accessories).
If the vehicle currently has analog-upgradable OnStar(R) hardware, then the customer should be
made aware of the digital upgrade program per the latest version of Service Bulletin #
05-08-46-006. Any analog OnStar system that is not upgraded prior to the end of 2007 will be
deactivated due to the upcoming phase-out of the analog cellular network in the U.S. and Canada.
If the vehicle has recently been upgraded or has had a service replacement unit installed, this
bulletin may not be applicable.
Certain 2001-2008 model year vehicles equipped with OnStar(R) may exhibit a condition with the
Global Positioning System (GPS) that causes inaccuracies in the GPS clock. The GPS system is
internal to the OnStar(R) Vehicle Interface Unit (VIU) or the Vehicle Communication Interface
Module (VCIM). This inaccuracy can result in a symptom where the OnStar(R) Call Center is
unable to obtain an accurate GPS signal, hands-Free Calling minutes expire prematurely and/or
the inability to add Hands-Free calling minutes.
Customer Notification
OnStar(R) will notify the customer by mail with instructions to contact their dealership service
department.
Dealer Action
Not all vehicles will require VIU/VCIM replacement.
The GPS signal in some vehicles may be recoverable. To determine if the signal is recoverable,
simply connect the Tech2(R) and using the GPS information data display option, observe the GPS
date and time. If the date/time stamps are equal to a date approximately 19 years in the future, the
GPS clock has exceeded its capacity and the VIU/VCIM will need to be replaced. If the date/time
stamp is in the past or near future, the GPS clock has simply generated an inaccurate value and
may be recoverable by performing the following power-up reset.
To initiate a power-up reset, battery voltage (batt. +) must be removed from the VIU/VCIM. The
preferred methods, in order, of initiating the reset are outlined below.
Remove the fuse that supplies Battery positive (Batt. +) voltage to the module (refer to the
applicable Service Information schematics for the appropriate fuse).
The next preferred method is to remove the connector to the OnStar(R) unit that Batt + is
contained.
The least preferable method is to remove the negative terminal of the vehicle battery. This will not
only initiate the power-up reset, but it may also result in the loss of radio presets and other stored
personalization information/settings in other modules as well.
After initiating the power-up reset, the GPS data will be set to the defaulted date and time and will
require an acquisition of the GPS signal in order to gain the proper date and time.
Acquiring the GPS signal requires running the vehicle in an open/unobstructed view of the sky.
First, contact OnStar(R) Technical Support by pressing the blue button. Allow the OnStar(R)
Technical Advisor to activate the GPS recovery process. This should take approximately 10
minutes. Continue to
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monitor the Tech2(R) for the current time and date. REMINDER - Keep in mind that the time
displayed on the Tech2(R) is in Greenwich Mean Time (GMT) and the offset is based on the time
zones relationship to GMT.
If replacement of the VIU/VCIM is necessary, you MUST reconfigure the OnStar® system. Failure
to reconfigure the system will result in an additional customer visit for repair. OnStar® VIU,
Generations 2 and 3, will require the technician to press the blue OnStar® button to reconfigure the
vehicle with an OnStar® advisor.
OnStar(R) VCIM, Generations 4-7 will require the technician to reconfigure the vehicle with the use
of the TIS2WEB and SPS applications (pass thru only), along with the Tech2(R).
The configuration and set-up procedure is a two-step process that must be completed step-by-step
without interruption or delay in between each step. This procedure enables an automated activation
without a button press by the technician to the OnStar(R) Call Center. Following this procedure, it
may take up to 24 hours for all OnStar(R) services to be fully activated.
How to Order Parts
If the OnStar(R) GPS date/time stamp is non-recoverable and the unit needs to be replaced,
dealers in the U.S. should contact Autocraft Electronics select the catalog item that contains this
bulletin number. Canadian dealers should contact MASS Electronics.
Dealers DO NOT need to call the GM Technical Assistance Center (TAC) for replacement
approval. Autocraft Electronics and MASS Electronics will be responsible for verifying that the
subject vehicle is a candidate for a replacement VIU/VCIM.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
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For vehicles repaired under warranty, use the table.
Disclaimer
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Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Emergency Contact Module: > 05-08-46-009B > Jun > 07 > OnStar(R) - Language Change Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Language Change
Information
Bulletin No.: 05-08-46-009B
Date: June 29, 2007
INFORMATION
Subject: Language Change for OnStar(R) System (U.S. and Canada Only)
Models: 2006-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2006-2008
HUMMER H2, H3 2006-2008 Saab 9-7X
with OnStar(R) (RPO UE1)
Built After and Including VIN Breakpoints Listed Below (2006 MY Only)
Attention:
This bulletin only applies to vehicles equipped with OnStar(R) Generation 6.1 or later with a Station
Identification (STID) Number in the following range: 16,000,000-17,000,000 or
20,000,000-21,999,999 or 23,500,001-26,000,000
Supercede:
This bulletin is being revised to update the service procedure and add a Canadian procedure.
Please discard Corporate Bulletin Numbers 05-08-46-009A and 05-08-46-008A (Section 08 - Body
and Accessories).
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Built After and Including the VIN Breakpoints shown.
The Generation (Gen) 6.1 OnStar(R) system found in these vehicles has the capability to change
the default English voice recognition to French or Spanish.
Changing the language of the OnStar(R) system will change the following features to the language
you select:
Voice recognition command prompts will be played in the language selected.
The voice recognition system will only recognize commands given in the selected language.
Once completed, this process completely changes all voice recognition and voice commands of the
OnStar(R) system. The process will need to be repeated in its entirety to change to a different
language, including English.
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Method 1
Method 2
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Method 3
The Gen 6.1 version of OnStar(R) does not require the use of the Service Programming System
(SPS) to change the voice recognition system. However, there are three ways to change the
language.
Disclaimer
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Emergency Contact Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Emergency Contact Module: > 02-08-44-007D > May > 09 > OnStar(R) - Negative Impact of Cloth/Vinyl Roofs
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Negative Impact of
Cloth/Vinyl Roofs
INFORMATION
Bulletin No.: 02-08-44-007D
Date: May 12, 2009
Subject: Negative Impact of Dealer-Installed Cloth/Vinyl Roofs on XM Radio and/or OnStar(R)
Systems
Models:
2002-2009 Passenger Cars and Trucks (Including Saturn) 2003-2009 HUMMER H2 2006-2009
HUMMER H3 2005-2009 Saab 9-7X with XM Radio (RPO U2K) and/or OnStar(R) (RPO UE1)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
include the 2009 model year. Please discard Corporate Bulletin Number 02-08-44-007C (Section
08 - Body and Accessories).
..............................................................................................................................................................
..................................................................................
Dealers should not install a cloth or vinyl roof on vehicles that have been ordered with the XM radio
option (RPO U2K) and/or OnStar(R) (RPO UE1). The performance of these systems may be
negatively impacted by the installation of the cloth/vinyl roof. Additionally, water leaks may result
from installing a cloth or vinyl roof on vehicles with roof-mounted antenna systems. Relocating the
antenna to another spot on the vehicle exterior, in order to install a cloth or vinyl roof, is not advised
either. The performance of the OnStar(R) and XM Radio antennas has been optimized for their
current locations. Relocating the antennas may result in a performance degradation.
Disclaimer
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Emergency Contact Module: > 06-08-46-008C > Sep > 08 > OnStar(R) - Analog/Digital System Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Analog/Digital System
Information
INFORMATION
Bulletin No.: 06-08-46-008C
Date: September 18, 2008
Subject: Information on OnStar(R) Dual-Mode (Analog/Digital) Systems
Models
Supercede:
This bulletin is being revised to correct the model year range for the Chevrolet Impala and Monte
Carlo and update the reference to GM Dealerworld. Please discard Corporate Bulletin Number
06-08-46-008B (Section 08 - Body and Accessories).
All 2000-2003 model year vehicles equipped with OnStar® from the list above were built with
Analog/Digital-Ready OnStar(R) Hardware. Some of these vehicles may have been upgraded to
Dual-Mode (Analog/Digital).
Certain 2004-2005 model year vehicles equipped with OnStar(R) from the list above may have
been either:
^ Originally built at the factory with Dual-Mode (Analog/Digital) OnStar(R) Hardware with
Dual-Mode (Analog/Digital) OnStar(R) Hardware
OR
^ Upgraded to Dual-Mode (Analog/Digital) Hardware
All 2006 model year and newer vehicles equipped with OnStar(R) were built at the factory with
Dual-Mode (Analog/Digital) OnStar(R) Hardware.
If a vehicle has Dual-Mode (Analog/Digital) OnStar(R) Hardware, then the system is capable of
operating on both the analog and digital cellular
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networks, and will not require an upgrade in connection with the cellular industry's transition to the
digital network.
In order to verify the type of OnStar(R) Hardware in a vehicle, type the VIN into the VIN look-up
tool, which is available at the OnStar(R) Online Enrollment website within GM GlobalConnect (for
U.S. dealers) or InfoNet (for Canadian dealers).
Disclaimer
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Emergency Contact Module: > 08-08-46-004 > Aug > 08 > OnStar(R) - Aftermarket Device Interference Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Aftermarket Device
Interference Information
INFORMATION
Bulletin No.: 08-08-46-004
Date: August 14, 2008
Subject: Information on Aftermarket Device Interference with OnStar(R) Diagnostic Services
Models: 2009 and Prior GM Passenger Car and Truck (including Saturn) 2009 and Prior HUMMER
H2, H3 Models 2009 and Prior Saab 9-7X
with OnStar(R) (RPO UE1)
This bulletin is being issued to provide dealer service personnel with information regarding
aftermarket devices connected to the Diagnostic Link Connector (DLC) and the impact to
OnStar(R) diagnostic probes and Vehicle Diagnostic e-mails.
Certain aftermarket devices, when connected to the Diagnostic Link Connector, such as, but not
limited to, Scan Tools, Trip Computers, Fuel Economy Analyzers and Insurance Tracking Devices,
interfere with OnStar's ability to perform a diagnostic probe when requested (via a blue button call)
by a subscriber. These devices also prohibit the ability to gather diagnostic and tire pressure data
for a subscriber's scheduled OnStar(R) Vehicle Diagnostic (OVD) e-mail.
These aftermarket devices utilize the Vehicles serial data bus to perform data requests and/or
information gathering. When these devices are requesting data, OnStar(R) is designed not to
interfere with any data request being made by these devices as required by OBD II regulations.
The OnStar(R) advisor is unable to definitively detect the presence of these devices and will only
be able to inform the caller or requester of the unsuccessful or incomplete probe and may in some
cases refer the subscriber/requester to take the vehicle to a dealer for diagnosis of the concern.
When performing a diagnostic check for an unsuccessful or incomplete OnStar(R) diagnostic
probe, or for concerns regarding completeness of the OnStar(R) Vehicle Diagnostic (OVD) e-mail,
verify that an aftermarket device was not present at the time of the requested probe. Regarding the
OVD e-mail, if an aftermarket device is interfering (including a Scan Tool of any type), the e-mail
will consistently display a "yellow" indication in diagnostics section for all vehicle systems except
the OnStar(R) System and Tire Pressure data (not available on all vehicles) will not be displayed
(i.e. section is collapsed). Successful diagnostic probes and complete OVD e-mails will resume
following the removal or disconnecting of the off-board device.
Disclaimer
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Emergency Contact Module: > 00-08-46-004C > Jan > 08 > OnStar(R) - Re-establishing OnStar(R) Communications
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Re-establishing OnStar(R)
Communications
Bulletin No.: 00-08-46-004C
Date: January 17, 2008
INFORMATION
Subject: Re-establishing Communications with OnStar(R) Center After Battery Disconnect
Models: 2000-2008 GM Passenger Cars and Trucks (Including Saturn and Saab)
with Digital OnStar(R) (RPO UE1)
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 00-08-46-004B (Section 08 - Body and Accessories).
When servicing any of the above models and a battery cable is disconnected or power to the
OnStar(R) Vehicle Communication Interface Module (VCIM) is interrupted for any reason the
following procedure must be performed to verify proper Global Positioning System (GPS) function.
Never swap OnStar(R) Vehicle Communication Interface Modules (VCIM) from other vehicles.
Transfer of OnStar(R) modules from other vehicles should not be done. Each OnStar(R) module
has a unique identification number. The VCIM has a specific Station Identification (STID). This
identification number is used by the National Cellular Telephone Network and OnStar(R) systems
and is stored in General Motors Vehicle History files by VIN.
After completing ALL repairs to the vehicle you must perform the following procedure:
Move the vehicle into an open area of the service lot.
Sit in the vehicle with the engine running and the radio turned on for five minutes.
Press the OnStar(R) button in the vehicle.
When the OnStar(R) advisor answers ask the advisor to verify the current location of the vehicle.
If the vehicle location is different than the location the OnStar(R) advisor gives contact GM
Technical Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in
the diagnosis of a failed VCIM and, if appropriate, order a replacement part. Replacement parts are
usually shipped out within 24 hours, and a pre-paid return package label will be included for
returning the faulty part. By returning the faulty part, you will avoid a non-return core charge.
Disclaimer
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Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Language Change
Information
Bulletin No.: 05-08-46-009B
Date: June 29, 2007
INFORMATION
Subject: Language Change for OnStar(R) System (U.S. and Canada Only)
Models: 2006-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2006-2008
HUMMER H2, H3 2006-2008 Saab 9-7X
with OnStar(R) (RPO UE1)
Built After and Including VIN Breakpoints Listed Below (2006 MY Only)
Attention:
This bulletin only applies to vehicles equipped with OnStar(R) Generation 6.1 or later with a Station
Identification (STID) Number in the following range: 16,000,000-17,000,000 or
20,000,000-21,999,999 or 23,500,001-26,000,000
Supercede:
This bulletin is being revised to update the service procedure and add a Canadian procedure.
Please discard Corporate Bulletin Numbers 05-08-46-009A and 05-08-46-008A (Section 08 - Body
and Accessories).
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Built After and Including the VIN Breakpoints shown.
The Generation (Gen) 6.1 OnStar(R) system found in these vehicles has the capability to change
the default English voice recognition to French or Spanish.
Changing the language of the OnStar(R) system will change the following features to the language
you select:
Voice recognition command prompts will be played in the language selected.
The voice recognition system will only recognize commands given in the selected language.
Once completed, this process completely changes all voice recognition and voice commands of the
OnStar(R) system. The process will need to be repeated in its entirety to change to a different
language, including English.
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Method 1
Method 2
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Method 3
The Gen 6.1 version of OnStar(R) does not require the use of the Service Programming System
(SPS) to change the voice recognition system. However, there are three ways to change the
language.
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
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Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming > Page 141
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
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- Keyless Entry Transmitter/Module Programming > Page 142
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming > Page 143
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming > Page 144
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming > Page 145
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming > Page 146
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov
> 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: Customer Interest Keyless Systems - Poor Range/TPM Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov
> 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 152
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov
> 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 153
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 159
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 160
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
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Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 165
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 166
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
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Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 167
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
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Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 168
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 169
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
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Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 170
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
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Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 176
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 177
For vehicles repaired under warranty, use the table.
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
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Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 183
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
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Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 184
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
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Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 185
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
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Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 186
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
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engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 188
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > Page 189
Keyless Entry Module: Diagrams
Remote Function Connector End Views
Remote Control Door Lock Receiver (RCDRL)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Keyless Entry Module > Component Information > Technical Service Bulletins > Page 190
Keyless Entry Module: Service and Repair
Remote Control Door Lock Receiver Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Navigation Module > Component Information > Technical Service Bulletins > Customer Interest for Navigation Module: >
07-08-44-010B > May > 09 > Navigation System - Display Locks Up/Error Messages
Navigation Module: Customer Interest Navigation System - Display Locks Up/Error Messages
TECHNICAL
Bulletin No.: 07-08-44-010B
Date: May 06, 2009
Subject: Navigation Radio Display Locks Up or Displays Error Messages (Update Navigation
Software)
Models:
2006-2007 Buick Lucerne 2007 Chevrolet Equinox 2007 GMC Acadia 2007 Pontiac Torrent 2007
Saturn OUTLOOK Equipped With Navigation Radio - RPO U3U (Equinox, Lucerne, Torrent) or
U3R or UZR (Acadia, OUTLOOK)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being canceled.
Please discard Corporate Bulletin Number 07-08-44-010A (Section 08 - Body & Accessories).
..............................................................................................................................................................
..................................................................................
For vehicles exhibiting the condition stated above, please refer to Corporate Bulletin Number
08-08-44-013C for the latest repair information.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Navigation Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Navigation
Module: > 07-08-44-010B > May > 09 > Navigation System - Display Locks Up/Error Messages
Navigation Module: All Technical Service Bulletins Navigation System - Display Locks Up/Error
Messages
TECHNICAL
Bulletin No.: 07-08-44-010B
Date: May 06, 2009
Subject: Navigation Radio Display Locks Up or Displays Error Messages (Update Navigation
Software)
Models:
2006-2007 Buick Lucerne 2007 Chevrolet Equinox 2007 GMC Acadia 2007 Pontiac Torrent 2007
Saturn OUTLOOK Equipped With Navigation Radio - RPO U3U (Equinox, Lucerne, Torrent) or
U3R or UZR (Acadia, OUTLOOK)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being canceled.
Please discard Corporate Bulletin Number 07-08-44-010A (Section 08 - Body & Accessories).
..............................................................................................................................................................
..................................................................................
For vehicles exhibiting the condition stated above, please refer to Corporate Bulletin Number
08-08-44-013C for the latest repair information.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Relay Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules
Relay Module: All Technical Service Bulletins Electrical - MIL ON/DTC's Set By Various Control
Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Relay Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 212
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Relay Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 213
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Relay Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 214
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay
Module > Component Information > Technical Service Bulletins > Customer Interest for Relay Module: > 09-06-03-004D >
Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules
Relay Module: Customer Interest Electrical - MIL ON/DTC's Set By Various Control Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay
Module > Component Information > Technical Service Bulletins > Customer Interest for Relay Module: > 09-06-03-004D >
Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 220
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay
Module > Component Information > Technical Service Bulletins > Customer Interest for Relay Module: > 09-06-03-004D >
Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 221
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay
Module > Component Information > Technical Service Bulletins > Customer Interest for Relay Module: > 09-06-03-004D >
Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 222
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 232
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 233
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 234
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 235
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 236
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 237
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems
- Poor Range/TPM Message Displayed
Keyless Entry Module: Customer Interest Keyless Systems - Poor Range/TPM Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems
- Poor Range/TPM Message Displayed > Page 243
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems
- Poor Range/TPM Message Displayed > Page 244
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 250
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 251
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 256
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 257
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 258
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 259
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
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> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 260
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
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> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 261
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
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Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 267
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
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Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 268
For vehicles repaired under warranty, use the table.
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C >
Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
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Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 274
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
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Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C >
Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 275
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
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Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 276
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
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Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C >
Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 277
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
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Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 278
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C >
Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 279
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Page 280
Keyless Entry Module: Diagrams
Remote Function Connector End Views
Remote Control Door Lock Receiver (RCDRL)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Page 281
Keyless Entry Module: Service and Repair
Remote Control Door Lock Receiver Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Seat Heater Control
Module > Component Information > Technical Service Bulletins > Customer Interest for Seat Heater Control Module: >
10-08-50-001 > Feb > 10 > Electrical - No Crank/Start Discharged or Low Battery
Seat Heater Control Module: Customer Interest Electrical - No Crank/Start Discharged or Low
Battery
TECHNICAL
Bulletin No.: 10-08-50-001
Date: February 15, 2010
Subject: No Crank, No Start, Discharged or Low Battery (Reprogram Heated Seat Module)
Models:
2006-2010 Chevrolet Impala 2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped
with Front Heated Seats
Condition
Some customers may comment on a no crank, no start, discharged or low battery.
Note
This condition may be intermittent, therefore it is important to check if a revised calibration has
been released on TIS2WEB for this concern, even if the condition cannot be duplicated at the
dealer.
Cause
This condition may be caused by the heated seat module discharging the battery. The module
keeps the serial data bus active, which creates a cumulative, continuous amperage draw on the
battery after the vehicle is shut down, until the state of charge reaches three volts.
Correction
Important DO NOT replace the heated seat module or the battery for this concern.
Reprogram the heated seat module with the latest software calibration.
Important Select the correct calibration files for the appropriate vehicle configuration (body style)
and RPO codes.
A revised calibration has been developed to address this condition. Technicians are to reprogram
the heated seat module using the Service Programming System (SPS) with the latest software
available on TIS2WEB. Refer to the Service Programming System (SPS) procedures in SI.
When using a Tech 2(R) or a Multiple Diagnostic Interface (MDI) for reprogramming, ensure that it
is updated with the latest software version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Seat Heater Control
Module > Component Information > Technical Service Bulletins > Customer Interest for Seat Heater Control Module: >
10-08-50-001 > Feb > 10 > Electrical - No Crank/Start Discharged or Low Battery > Page 290
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Seat Heater Control
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Heater Control
Module: > 10-08-50-001 > Feb > 10 > Electrical - No Crank/Start Discharged or Low Battery
Seat Heater Control Module: All Technical Service Bulletins Electrical - No Crank/Start Discharged
or Low Battery
TECHNICAL
Bulletin No.: 10-08-50-001
Date: February 15, 2010
Subject: No Crank, No Start, Discharged or Low Battery (Reprogram Heated Seat Module)
Models:
2006-2010 Chevrolet Impala 2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped
with Front Heated Seats
Condition
Some customers may comment on a no crank, no start, discharged or low battery.
Note
This condition may be intermittent, therefore it is important to check if a revised calibration has
been released on TIS2WEB for this concern, even if the condition cannot be duplicated at the
dealer.
Cause
This condition may be caused by the heated seat module discharging the battery. The module
keeps the serial data bus active, which creates a cumulative, continuous amperage draw on the
battery after the vehicle is shut down, until the state of charge reaches three volts.
Correction
Important DO NOT replace the heated seat module or the battery for this concern.
Reprogram the heated seat module with the latest software calibration.
Important Select the correct calibration files for the appropriate vehicle configuration (body style)
and RPO codes.
A revised calibration has been developed to address this condition. Technicians are to reprogram
the heated seat module using the Service Programming System (SPS) with the latest software
available on TIS2WEB. Refer to the Service Programming System (SPS) procedures in SI.
When using a Tech 2(R) or a Multiple Diagnostic Interface (MDI) for reprogramming, ensure that it
is updated with the latest software version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Seat Heater Control
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Heater Control
Module: > 10-08-50-001 > Feb > 10 > Electrical - No Crank/Start Discharged or Low Battery > Page 296
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Seat Heater Control
Module > Component Information > Technical Service Bulletins > Page 297
Passenger Seat (Manual)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Seat Heater Control
Module > Component Information > Technical Service Bulletins > Page 298
Seat Heater Control Module: Service and Repair
HEATED SEAT CONTROL MODULE REPLACEMENT - FRONT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Seat Heater Control
Module > Component Information > Technical Service Bulletins > Page 299
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Sunroof / Moonroof
Module > Component Information > Locations
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Sunroof / Moonroof
Module > Component Information > Locations > Page 303
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Sunroof / Moonroof
Module > Component Information > Service and Repair > Sunroof Control Module Replacement
Sunroof / Moonroof Module: Service and Repair Sunroof Control Module Replacement
SUNROOF CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the headliner.
2. Depress the tab on the side of the control module. 3. With the tab depressed, slide the sunroof
control module toward the sunroof motor. This will release the control module from the sunroof
module.
4. Remove the control module from the sunroof module and disconnect the electrical connector.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Sunroof / Moonroof
Module > Component Information > Service and Repair > Sunroof Control Module Replacement > Page 306
1. Connect the electrical connector to the sunroof control module.
2. Insert the control module tabs into the sunroof module slots. 3. Slide the sunroof express module
away from the sunroof motor until it is fully engaged. 4. Verify the proper operation of the sunroof
before securing the headliner. 5. Install the headliner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Sunroof / Moonroof
Module > Component Information > Service and Repair > Sunroof Control Module Replacement > Page 307
Sunroof / Moonroof Module: Service and Repair Sunroof Module Assembly Replacement
SUNROOF MODULE ASSEMBLY REPLACEMENT
REMOVAL PROCEDURE
1. Remove the headliner.
2. Cycle the window panel to the rear. 3. Disconnect the electrical connector from the sunroof
module. 4. Remove the front and rear sunroof drain hoses. 5. With the aid of an assistant, remove
the bolts that secure the sunroof module to the roof. 6. With the aid of an assistant, lower and
remove the sunroof module.
INSTALLATION PROCEDURE
1. With the aid of an assistant, position the new sunroof module into the roof opening. 2. Install the
bolts which secure the sunroof module to the roof and tighten the bolts by hand.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Body and Frame > Sunroof / Moonroof
Module > Component Information > Service and Repair > Sunroof Control Module Replacement > Page 308
3. Place a 12 mm (0.47 in) pin into the sunroof module alignment holes.
4. NOTE: Refer to Fastener Notice.
Remove the alignment pins.
Tighten the bolts to 8 N.m (70 lb in).
5. Install the front and rear sunroof drain hoses. 6. Connect the electrical connectors to the sunroof
module. 7. Secure the harness to the sunroof module. 8. Adjust the sunroof window. Refer to
Sunroof Window Height and Opening Fit Adjustment. 9. Verify the proper operation of the sunroof
before installing the headliner.
10. Install the headliner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign
- ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign
- ESC/Steering Module Reprogramming > Page 318
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign
- ESC/Steering Module Reprogramming > Page 319
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign
- ESC/Steering Module Reprogramming > Page 320
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign
- ESC/Steering Module Reprogramming > Page 321
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Customer Interest: > 07-02-32-009 > Sep >
07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Electronic Brake Control Module: Customer Interest Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Customer Interest: > 07-02-32-009 > Sep >
07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page 327
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Electronic Brake Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545 > Page 333
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 338
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 339
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 340
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 341
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Electronic Brake Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page
347
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 353
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 354
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 355
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 356
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Page 357
Electronic Brake Control Module: Locations
Near the Brake Booster
1 - Brake Fluid Level Switch 2 - LF Strut Tower 3 - Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Page 358
Electronic Brake Control Module: Diagrams
Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Page 359
Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Page 360
Electronic Brake Control Module: Service and Repair
Electronic Brake Control Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Page 361
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - HVAC > Control Module HVAC > Component
Information > Locations
Control Module HVAC: Locations
HVAC Component Views
Instrument Panel
1 - Ambient Light Sensor 2 - Instrument Panel Cluster (IPC) 3 - Driver Information Center (DIC)
Switch 4 - Hazard Switch 5 - Inflatable Restraint Passenger Air Bag ON/OFF Indicator 6 - Rear
Wiper/Washer Switch 7 - Radio 8 - HVAC Control Module 9 - Heated Seat Switches 10 - Power
Window Switch - Main
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - HVAC > Control Module HVAC > Component
Information > Locations > Page 366
11 - Traction Control Switch 12 - Dimmer Switch 13 - Outside Rear View Mirror Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - HVAC > Control Module HVAC > Component
Information > Locations > Page 367
Control Module HVAC: Diagrams
HVAC Connector End Views
HVAC Control Module - C1
HVAC Control Module - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - HVAC > Control Module HVAC > Component
Information > Locations > Page 368
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - HVAC > Control Module HVAC > Component
Information > Locations > Page 369
Control Module HVAC: Service and Repair
Blower Motor Control Module Replacement
Removal Procedure
1. Disconnect the electrical connector from the blower motor control module.
2. Remove the blower control module screws from the HVAC module.
3. Remove the blower motor control module from the HVAC module.
Installation Procedure
1. Install the blower motor control module to the HVAC module.
Notice: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - HVAC > Control Module HVAC > Component
Information > Locations > Page 370
2. Install the blower motor control module screws to the HVAC module.
Tighten the screws to 1.5 N.m (13 lb in).
3. Connect the electrical connector to the blower motor control module.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Lighting and Horns > Daytime Running Lamp
Relay > Component Information > Locations
Daytime Running Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Lighting and Horns > Fog/Driving Lamp Relay
> Component Information > Locations
Fog/Driving Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Lighting and Horns > Headlamp Relay >
Component Information > Locations
Headlamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Lighting and Horns > High Beam Relay >
Component Information > Locations
High Beam Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Lighting and Horns > Horn Relay >
Component Information > Locations
Horn Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Lighting and Horns > Low Beam Relay >
Component Information > Locations
Low Beam Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Lighting and Horns > Parking Lamp Relay >
Component Information > Locations
Parking Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Lighting and Horns > Tail Lamp Relay >
Component Information > Locations
Tail Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Power and Ground Distribution > Power
Distribution Relay > Component Information > Service and Repair > Relay Replacement (Attached to Wire Harness)
Power Distribution Relay: Service and Repair Relay Replacement (Attached to Wire Harness)
RELAY REPLACEMENT (ATTACHED TO WIRE HARNESS)
REMOVAL PROCEDURE
1. Locate the relay. 2. Remove any fasteners which hold the relay in place. 3. Remove any
connector position assurance (CPA) devices or secondary locks.
4. IMPORTANT: Use care when removing a relay in a wiring harness when the relay is secured by
fasteners or tape.
Separate the relay (1) from the wire harness connector (2).
INSTALLATION PROCEDURE
1. Connect the relay (1) to the wire harness connector (2). 2. Install any connector position
assurance (CPA) devices or secondary locks. 3. Install the relay using any fasteners or tape that
originally held the relay in place.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Power and Ground Distribution > Power
Distribution Relay > Component Information > Service and Repair > Relay Replacement (Attached to Wire Harness) > Page
401
Power Distribution Relay: Service and Repair Relay Replacement (Within an Electrical Center)
RELAY REPLACEMENT (WITHIN AN ELECTRICAL CENTER)
TOOLS REQUIRED
J 43244 Relay Puller Pliers
REMOVAL PROCEDURE
1. Remove the electrical center cover. 2. Locate the relay.
3. IMPORTANT:
- Always note the orientation of the relay.
- Ensure that the electrical center is secure, as not to put added stress on the wires or terminals.
Using the J 43244 (1) position the tool on opposing corners of the relay (2).
4. NOTE: Use J43244 to pull the relay straight out from the electrical center terminals. The use of
pliers or a flat bladed tool could damage the
electrical center.
Remove the relay (2) from the electrical center.
INSTALLATION PROCEDURE
1. Install the relay (2) in the same position as removed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Power and Ground Distribution > Power
Distribution Relay > Component Information > Service and Repair > Relay Replacement (Attached to Wire Harness) > Page
402
2. Install the electrical center cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> Customer Interest: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn Signal Lever Inop
Body Control Module: Customer Interest Wipers - Wipers Work On One Speed/Turn Signal Lever
Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> Customer Interest: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn Signal Lever Inop > Page 413
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> Customer Interest: > 06-06-03-009 > Oct > 06 > Electrical - Battery Goes Dead Overnight
Body Control Module: Customer Interest Electrical - Battery Goes Dead Overnight
Bulletin No.: 06-06-03-009
Date: October 19, 2006
INFORMATION
Subject: Diagnostic Information on Battery Draw No Start - Body Control Module, BCM Power
Timer
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2006-2007 Chevrolet Impala, Monte
Carlo 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Tahoe, Silverado, Suburban 2007 GMC Sierra, Yukon, Yukon XL, Denali, Denali XL 2007
Pontiac Torrent
When performing normal diagnosis on a battery that has gone dead overnight, a technician may
notice that the vehicle has approximately 4.1 amp draw on the system. The draw may be steady or
may drop down to a low milliamp reading for 1-2 seconds and then rise back up to the 4.1 amp
range. If this amp draw condition is observed, check for aftermarket accessories or an improperly
installed GM accessory that is wired into circuit 6815 (orange wire) for courtesy lamps. Anytime
aftermarket accessories are installed into the courtesy lamp circuit, it can cause the inadvertent
power timer in the body control module (BCM) to keep resetting. The BCM will remain awake and
cause the draw of approximately 4.1 amps.
When servicing a vehicle with this concern, back out pin 1 of the connector 2 at the BCM and see if
the draw goes away. If the draw goes away, check for an aftermarket accessory (Lojack,
non-factory DVD system, alarm, etc.) that is improperly installed in circuit 6815.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To Reprogram Body Control
Module
Body Control Module: All Technical Service Bulletins Body Controls - Unable To Reprogram Body
Control Module
INFORMATION
Bulletin No.: 09-08-47-001A
Date: June 14, 2010
Subject: Unable to Reprogram Body Control Module (BCM), BCM Reprogramming Did Not
Complete - Revised Reprogramming Instructions
Models:
2006-2010 Buick Lucerne 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade, Escalade ESV,
Escalade EXT, SRX 2008-2010 Cadillac CTS 2010 Cadillac CTS Wagon 2010 Chevrolet Camaro
2006-2007 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala 2007-2010 Chevrolet Avalanche,
Equinox, Silverado, Suburban, Tahoe 2008-2010 Chevrolet Express 2009-2010 Chevrolet
Traverse 2007-2010 GMC Acadia, Sierra, Yukon, Yukon XL, Yukon Denali, Yukon Denali XL
2008-2010 GMC Savana 2010 GMC Terrain 2007-2009 Pontiac Torrent 2008-2009 Pontiac G8
2008-2009 HUMMER H2 2007-2009 Saturn OUTLOOK 2008-2009 Saturn VUE Refer to GMVIS
Supercede: This bulletin is being revised to update the models and the model years. Please
discard Corporate Bulletin Number 09-08-47-001 (Section 08 - Body and Accessories).
Some technicians may experience an unsuccessful body control module (BCM) reprogramming
event, when choosing the Reprogram ECU selection on the Service Programming System (SPS).
The technician may also notice that when attempting to reprogram the BCM again after this
incident has occurred, the BCM may not complete the programming event.
This condition may be caused by the following:
- A reprogramming event that was interrupted due to a lack of communication between the vehicle
and the TIS2WEB terminal.
- The vehicle experienced low system voltage during the reprogramming event.
Important Do not replace the BCM for this condition.
SPS Programming Process Selection
Perform this procedure first.
1. If reprogramming has failed during the initial reprogramming event, back out of the SPS
application completely. 2. Re-select SPS from the TIS2WEB terminal application. 3. When
selecting the Programming Process , choose Replace and Program ECU , even though a new
BCM is NOT being installed. 4. Reprogram the BCM using the Service Programming System (SPS)
with the latest calibration available on TIS2WEB. Refer to the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To Reprogram Body Control
Module > Page 423
During programming, the battery voltage must be maintained within the proper range of 12-15
volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
BCM Still Fails to Reprogram
If the BCM still fails to reprogram perform this procedure:
1. Turn OFF the ignition, and remove the key. 2. Remove the fuses that power up the following
modules/components for a minimum of 2 minutes:
- BCM
- EBCM
- ECM
- IS LPS (located in the left IP fusebox)
- TCM
3. Open and close the driver door. Allow enough time for the retained accessory power (RAP) to
turn OFF. 4. Reinstall the fuses. 5. When selecting the Programming Process , choose Replace
and Program ECU , even though a new BCM is NOT being installed. 6. Reprogram the BCM using
the Service Programming System (SPS) with the latest calibration available on TIS2WEB. Refer to
the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control Module (BCM) Grounds
Body Control Module: All Technical Service Bulletins Body Controls - Body Control Module (BCM)
Grounds
INFORMATION
Bulletin No.: 07-08-47-004C
Date: December 04, 2009
Subject: Information on Body Control Module (BCM) Grounds
Models:
2006-2010 Buick Lucerne 2007-2010 Buick Enclave 2006-2010 Cadillac DTS 2007-2009 Cadillac
SRX 2008-2010 Cadillac CTS 2006-2008 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala
2007-2009 Chevrolet Equinox 2008-2010 Chevrolet Express, Traverse 2007-2010 GMC Acadia
2008-2010 GMC Savana 2007-2009 Pontiac Torrent 2007-2010 Saturn OUTLOOK 2008-2010
Saturn VUE 2008-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models, model years and information.
Please discard Corporate Bulletin Number 07-08-47-004B (Section 08 - Body & Accessories).
The purpose of this bulletin is to inform dealers of an issue that could cause internal module
damage to the Body Control Module (BCM).
The BCM may be damaged when the module is supplied with battery power and the ground path is
removed. You must remove the negative battery cable first before removing a BCM ground.
Issue 1
Below is a list of vehicles and the components that the BCM ground path passes through. The
negative battery cable must be removed when removing the components noted below.
- 2008-2010 HUMMER H2 (Instrument panel electrical center)
- 2008-2010 Saturn VUE (I/P splice pack)
Issue 2
It is important to note when removing a ring terminal ground, splice pack connector, or inline
harness connector for all the vehicles listed in the model section above, that it doesn't include a
BCM ground path. You must remove the negative battery cable if you determine that it is a BCM
ground path.
As an example: If the BCM grounds become disconnected, internal damage to the BCM will occur.
Other systems controlled by the BCM will also be affected, such as an inoperative or intermittent
condition in one or more of the following systems:
- Interior lighting will remain on or will not work
- Exterior lighting will remain on or will not work
- Remote keyless entry
- Door locks
- Power windows and mirrors
- Remote vehicle start
- Remote trunk release
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control Module (BCM) Grounds >
Page 428
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn Signal Lever Inop
Body Control Module: All Technical Service Bulletins Wipers - Wipers Work On One Speed/Turn
Signal Lever Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn Signal Lever Inop
> Page 433
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins: > 06-06-03-009 > Oct > 06 > Electrical - Battery Goes Dead Overnight
Body Control Module: All Technical Service Bulletins Electrical - Battery Goes Dead Overnight
Bulletin No.: 06-06-03-009
Date: October 19, 2006
INFORMATION
Subject: Diagnostic Information on Battery Draw No Start - Body Control Module, BCM Power
Timer
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2006-2007 Chevrolet Impala, Monte
Carlo 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Tahoe, Silverado, Suburban 2007 GMC Sierra, Yukon, Yukon XL, Denali, Denali XL 2007
Pontiac Torrent
When performing normal diagnosis on a battery that has gone dead overnight, a technician may
notice that the vehicle has approximately 4.1 amp draw on the system. The draw may be steady or
may drop down to a low milliamp reading for 1-2 seconds and then rise back up to the 4.1 amp
range. If this amp draw condition is observed, check for aftermarket accessories or an improperly
installed GM accessory that is wired into circuit 6815 (orange wire) for courtesy lamps. Anytime
aftermarket accessories are installed into the courtesy lamp circuit, it can cause the inadvertent
power timer in the body control module (BCM) to keep resetting. The BCM will remain awake and
cause the draw of approximately 4.1 amps.
When servicing a vehicle with this concern, back out pin 1 of the connector 2 at the BCM and see if
the draw goes away. If the draw goes away, check for an aftermarket accessory (Lojack,
non-factory DVD system, alarm, etc.) that is improperly installed in circuit 6815.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Other Service Bulletins for Body Control Module: > 07-08-44-010B > May > 09 > Navigation System - Display Locks
Up/Error Messages
Navigation Module: All Technical Service Bulletins Navigation System - Display Locks Up/Error
Messages
TECHNICAL
Bulletin No.: 07-08-44-010B
Date: May 06, 2009
Subject: Navigation Radio Display Locks Up or Displays Error Messages (Update Navigation
Software)
Models:
2006-2007 Buick Lucerne 2007 Chevrolet Equinox 2007 GMC Acadia 2007 Pontiac Torrent 2007
Saturn OUTLOOK Equipped With Navigation Radio - RPO U3U (Equinox, Lucerne, Torrent) or
U3R or UZR (Acadia, OUTLOOK)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being canceled.
Please discard Corporate Bulletin Number 07-08-44-010A (Section 08 - Body & Accessories).
..............................................................................................................................................................
..................................................................................
For vehicles exhibiting the condition stated above, please refer to Corporate Bulletin Number
08-08-44-013C for the latest repair information.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1
Body Control Module: Diagrams Body Control Module - C1
Body Control Module - C1 (Pin 1 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 450
Body Control Module - C1 (Pin 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 451
Body Control Module: Diagrams Body Control Module - C2
Body Control Module - C2 (Pin 1 To 20)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 452
Body Control Module - C2 (Pin 21 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 453
Body Control Module: Diagrams Body Control Module - C3
Body Control Module - C3 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 454
Body Control Module - C3 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 455
Body Control Module: Diagrams Body Control Module - C4
Body Control Module - C4 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 456
Body Control Module - C4 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 457
Body Control Module: Diagrams
Body Control Module - C1 (Pin 1 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 458
Body Control Module - C1 (Pin 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 459
Body Control Module - C2 (Pin 1 To 20)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 460
Body Control Module - C2 (Pin 21 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 461
Body Control Module - C3 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 462
Body Control Module - C3 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 463
Body Control Module - C4 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 464
Body Control Module - C4 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 465
Body Control Module - C5 (Pin 1 To 17)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 466
Body Control Module - C5 (Pin 18 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 467
Body Control Module - C6 (Pin 1 To 18)
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Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 468
Body Control Module - C6 (Pin 19 To 25)
Body Control Module - C7 (Pin 1 To 28)
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Service and Repair > Body
Control Module Replacement
Body Control Module: Service and Repair Body Control Module Replacement
BODY CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: If data is not retrieved from the malfunctioning body control module (BCM),
additional time will be required to program the
replacement BCM.
Retrieve data from the malfunctioning BCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
2. Rotate the ignition switch to the OFF position.
3. Remove the radio bezel. 4. Disconnect the BCM electrical harnesses. 5. Remove the BCM from
the instrument panel (I/P) retainer:
1. Pry the BCM tabs from the locking tabs on the underside of the restraint. 2. Slide the BCM out of
the retainer.
INSTALLATION PROCEDURE
1. Install the BCM. 2. Install the radio bezel. 3. Slide the BCM tabs into the slots in the I/P retainer
until the tabs lock into place. 4. Connect the electrical connectors. 5. Program a new or a
remanufactured BCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
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Control Module Replacement > Page 471
Body Control Module: Service and Repair Body Control Module (BCM) Programming/RPO
Configuration
BODY CONTROL MODULE (BCM) PROGRAMMING/RPO CONFIGURATION
INTRODUCTION
A new body control module (BCM) must be programmed with the latest operating software and
vehicle calibrations. Ensure that the following conditions exist in order to prepare for BCM
programming:
- The battery is fully charged.
- The ignition switch is in the ON position.
- The data link connector (DLC) is accessible.
- All disconnected modules and devices are connected.
PROGRAMMING THE BCM
IMPORTANT: The vehicle will not start and many other functions may not operate properly if a
replacement BCM is not properly set up. The following procedures must be followed:
1. Programming the BCM 2. Learning the restraints ID
IMPORTANT: After the procedure is completed, the personalization settings of the BCM are set to
default settings. Inform the customer that the personalization must be set again.
LEARNING THE RESTRAINTS ID
Navigate on the scan tool to Body Control Module > Module Setup > Setup SDM Primary Key in
BCM, then follow the instructions on the screen.
IMPORTANT: After programming, perform the following to avoid future misdiagnosis:
1. Turn the ignition OFF for 10 seconds. 2. Connect the scan tool to the data link connector. 3. Turn
the ignition ON, with the engine OFF. 4. Use the scan tool in order to retrieve history DTCs from all
modules. 5. Clear all history DTCs.
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Electronic Throttle Control Module > Component Information > Locations
Electronic Throttle Control Module: Locations
Air Induction Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Electronic Throttle Control Module > Component Information > Locations >
Page 475
Front Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Modules - Computers and Control Systems > Electronic Throttle Control Module > Component Information > Locations >
Page 476
Rear Of The Engine
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Engine Control Module > Component Information > Technical Service
Bulletins > Engine Controls - Aftermarket Accessory Usage
Engine Control Module: Technical Service Bulletins Engine Controls - Aftermarket Accessory
Usage
INFORMATION
Bulletin No.: 04-06-04-054B
Date: November 18, 2010
Subject: Info - Non-GM Parts and Accessories (Aftermarket)
Models:
2011 and Prior GM Passenger Cars and Trucks
Supercede: This bulletin is being revised to add model years and update to the new U.S. Fixed
Operation Manager (FOM) and Canada Warranty Manager (WM) names. Please discard Corporate
Bulletin Number 04-06-04-054A (Section 06 - Engine/Propulsion System).
The recent rise and expansion of companies selling non-GM parts and accessories has made it
necessary to issue this reminder to dealers regarding GM's policy on the use and installation of
these aftermarket components.
When a dealer is performing a repair under the New Vehicle Limited Warranty, they are required to
use only genuine GM or GM-approved parts and accessories. This applies to all warranty repairs,
special policy repairs or any repairs paid for by GM. Parts and accessories advertised as being "the
same" as parts manufactured by GM, but not sold through GM, do not qualify for use in warranty
repairs, special policy repairs or any repairs paid for by GM.
During a warranty repair, if a GM original equipment part is not available through GM Customer
Care and Aftersales (GM CC&A;), ACDelco(R) distributors, other GM dealers or approved sources,
the dealer is to obtain comparable, non-GM parts and clearly indicate, in detail, on the repair order
the circumstances surrounding why non-GM parts were used. The dealer must give customers
written notice, prior to the sale or service, that such parts or accessories are not marketed or
warranted by General Motors.
It should also be noted that dealers modifying new vehicles and installing equipment, parts and
accessories obtained from sources not authorized by GM are responsible for complying with the
National Traffic and Motor Vehicle Safety Act. Certain non-approved parts or assemblies, installed
by the dealer or its agent not authorized by GM, may result in a change to the vehicle's design
characteristics and may affect the vehicle's ability to conform to federal law. Dealers must fully
understand that non-GM approved parts may not have been validated, tested or certified for use.
This puts the dealer at risk for potential liability in the event of a part or vehicle failure. If a GM part
failure occurs as the result of the installation or use of a non-GM approved part, the warranty will
not be honored.
A good example of non-authorized modification of vehicles is the result of an ever increasing
supply of aftermarket devices available to the customer, which claim to increase the horsepower
and torque of the Duramax(TM) Diesel Engines. These include the addition of, but are not limited to
one or more of the following modifications:
- Propane injection
- Nitrous oxide injection
- Additional modules (black boxes) that connect to the vehicle wiring systems
- Revised engine calibrations downloaded for the engine control module
- Calibration modules which connect to the vehicle diagnostic connector
- Modification to the engine turbocharger waste gate
Although the installation of these devices, or modification of vehicle components, can increase
engine horsepower and torque, they may also negatively affect the engine emissions, reliability
and/or durability. In addition, other powertrain components, such as transmissions, universal joints,
drive shafts, and front/rear axle components, can be stressed beyond design safety limits by the
installation of these devices.
General Motors does not support or endorse the use of devices or modifications that, when
installed, increase the engine horsepower and torque. It is because of these unknown stresses,
and the potential to alter reliability, durability and emissions performance, that GM has adopted a
policy that prevents any UNAUTHORIZED dealer warranty claim submissions to any remaining
warranty coverage, to the powertrain and driveline components whenever the presence of a
non-GM (aftermarket) calibration is confirmed - even if the non-GM control module calibration is
subsequently removed. Refer to the latest version of Bulletin 09-06-04-026 (V8 Gas Engines) or
06-06-01-007 (Duramax(TM) Diesel Engines) for more information on dealer requirements for
calibration verification.
These same policies apply as they relate to the use of non-GM accessories. Damage or failure
from the use or installation of a non-GM accessory will not be covered under warranty. Failure
resulting from the alteration or modification of the vehicle, including the cutting, welding or
disconnecting of the vehicle's original equipment parts and components will void the warranty.
Additionally, dealers will NOT be reimbursed or compensated by GM in the event of any legal
inquiry at either the local, state or federal level that
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results from the alteration or modification of a vehicle using non-GM approved parts or accessories.
Dealers should be especially cautious of accessory companies that claim the installation of their
product will not void the factory warranty. Many times these companies have even given direction
on how to quickly disassemble the accessory in an attempt to preclude the manufacturer from
finding out that is has been installed.
Any suspect repairs should be reviewed by the Fixed Operations Manager (FOM), and in Canada
by the Warranty Manager (WM) for appropriate repair direction. If it is decided that a goodwill repair
is to be made on the vehicle, even with the installation of such non-GM approved components, the
customer is to be made aware of General Motors position on this issue and is to sign the
appropriate goodwill documentation required by General Motors.
It is imperative for dealers to understand that by installing such devices, they are jeopardizing not
only the warranty coverage, but also the performance and reliability of the customer's vehicle.
Disclaimer
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Engine Control Module: Technical Service Bulletins Engine/Transmission - Aftermarket Calibrations
INFORMATION
Bulletin No.: 09-06-04-026C
Date: August 13, 2010
Subject: Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V8 Gas
Engines Using Tech 2(R) or Global Diagnostic System (GDS)
Models:
2006-2011 GM Passenger Cars and Light Duty Trucks (Excluding Saab 9-7X) 2006-2009
HUMMER H2 2006-2010 HUMMER H3 Equipped with V8 Gas Powered Engines Only
Attention:
This bulletin applies to V8 gas powered engines ONLY. For Duramax(TM) diesel powered engines,
refer to the latest version of Corporate Bulletin Number 08-06-04-006G.
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 09-06-04-026A (Section 06 - Engine/Propulsion System).
General Motors is identifying an increasing number of engine, transmission and catalytic converter
part failures that are the result of non-GM (aftermarket) engine and transmission control
calibrations being used.
When alteration to the GM-released engine or transmission control calibrations occurs, it subjects
powertrain and driveline components (engine , transmission, transfer case, driveshaft and rear
axle) to stresses that were not tested by General Motors. It is because of these unknown stresses,
and the potential to alter reliability, durability and emissions performance, that GM has adopted a
policy that prevents any UNAUTHORIZED dealer warranty claim submissions to any remaining
warranty coverage, to the powertrain and driveline components whenever the presence of a
non-GM (aftermarket) calibration is confirmed - even if the non-GM control module calibration is
subsequently removed.
Warranty coverage is based on the equipment and calibrations that were released on the vehicle at
time of sale, or subsequently updated by GM. That's because GM testing and validation matches
the calibration to a host of criteria that is essential to assure reliability, durability and emissions
performance over the life of the warranty coverage and beyond. Stresses resulting from
calibrations different from those tested and released by GM can damage or weaken components,
leading to poor performance and or shortened life.
Additionally, non-GM (aftermarket) issued engine control modifications often do not meet the same
emissions performance standards as GM issued calibrations. Depending on state statutes,
individuals who install engine control module calibrations that put the vehicle outside the
parameters of emissions certification standards may be subject to fines and/or penalties.
This bulletin outlines a procedure to identify the presence of non-GM (aftermarket) calibrations. GM
recommends performing this check whenever a hard part failure is seen on internal engine or
transmission components, or before an engine assembly or transmission assembly is being
replaced under warranty. It is also recommended that the engine calibration verification procedure
be performed whenever diagnostics indicate that catalytic converter replacement is indicated.
The PQC has a process to confirm the ECM/PCM calibration is GM issued. The PQC will require a
picture of the engine calibration verification screen, as outlined in this bulletin, before authorizing
any V8 gas powered engine replacement.
If a non-GM calibration is found and verification has taken place through GM, the remaining
powertrain and driveline warranty will be blocked and notated in GMVIS and the dealership will be
notified. This block prevents any UNAUTHORIZED warranty claim submission.
1. Connect the Tech 2(R) to the vehicle. 2. Go to: Diagnostics and build the vehicle. 3. Select:
Powertrain. 4. Select: Engine. 5. *Select: Engine Control Module or PCM. 6. *Select: Module ID
Information or I/M Information System if the Module ID Information selection is not available. 7. *If
"I/M information System" was selected, it may be necessary to select "Vehicle Information" in order
to display the calibration information.
‹› If the CVN information is displayed as "N/A", it will be necessary to contact the TCSC to obtain
the CVN information.
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8. Take a CLEAR digital picture of the Tech 2(R) Vehicle Information screen showing the engine
Calibration IDs and Verification Numbers as
shown above. Retain the printout information and the Tech 2(R) screen photograph with the repair
order.
Note All pictures must be sent as a.jpg file.
9. E-mail a copy of the picture to
[email protected]. In the subject line of the e-mail include the
phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
10. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
11. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Tech 2(R) Displaying All Zeroes for the Verification Numbers on the Calibration ID and Verification
Number Screen
If the Tech 2(R) that you are using displays all zeroes for the Verification Numbers as shown, then
perform the following steps:
1. Update the Tech 2(R) with the latest software from TIS2WEB. 2. Turn OFF the ignition for 90
seconds. 3. Connect the Tech 2(R) to the vehicle. 4. Turn ON the ignition, and build the vehicle.
Observe the Tech 2(R) Calibration ID and Verification Number screen for proper operation.
‹› If the Tech 2(R) screen still does not display properly, then turn OFF the ignition for 90 seconds
again. Turn ON the ignition and observe the
same screen for proper operation.
Retrieving Calibrations From a Global A Vehicle
This information applies to the 2010 Camaro and is typical of the procedure that will be used on
Global A vehicles.
1. Turn OFF the ignition.
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2. Connect the MDI to the Data Link Connector (DLC) of the vehicle.
Note Use the USB port to make the following MDI connection:
3. Connect the MDI to a PC or laptop that has been downloaded with the GDS application from
TIS2WEB.
Note At least one Diagnostic Package must be installed on the PC to perform diagnostics. If GDS
was just installed, select: Add New Diagnostic Package and then select: a Diagnostic Package to
download.
4. Click: On the GDS icon on the PC. 5. The Login Page will appear. 6. Select: A User. 7. The ID
Screen will appear. 8. Select: The serial number of the MDI being used. 9. Select: Connect.
10. Verify that the system status is ready by observing for a flashing PC light icon on the MDI. 11.
Select: Make, Model and Model Year, in order to build the vehicle. 12. Click: Upload VIN, to allow
the VIN to be reported to the PC. 13. At: The Verification step, turn ON the ignition, with the engine
OFF. 14. Select: Next Action. 15. The Home Page will appear. 16. Select: Next. 17. The Diagnostic
Screen will appear.
Note Due to vehicle build, software and RPO variations, GDS may ask for additional information in
Step 18.
18. Select: Engine ID, if prompted. 19. Select: Module Diagnostics. 20. Select: ECM. 21. Select: ID
Information. 22. The Diagnostics page will appear.
Typical View of GDS Calibration History Screen
Note GDS is capable of displaying up to 10 Calibration History events.
23. Select: Calibration History from the drop down menu in order to display the following items on
the screen:
- Calibration History Buffer
- Number of Calibration History Events Stored
- Calibration Part Number History
- Calibration Verification Number History
24. Select: Screenshot. 25. Name and save the file in an appropriate folder. 26. Select : Print, and
retain a copy of the screenshot with the repair order.
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Note All pictures must be sent as a.jpg file.
27. E-mail a copy of the screenshot to
[email protected]. In the subject line of the e-mail
include the phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
28. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
29. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Warranty Information
- The Dealership Service Management must be involved in any situation that would justify the use
of labor operation Z1111.
- Notify the Fixed Operations Manager (FOM) (Warranty Manager (WM) in Canada) of the
situation.
- All claims will have to be routed to the FOM (WM in Canada) for approval.
- Please refer to Corporate Bulletin Number 09-00-89-016, Labor Operation Z1111 - Suspected
Tampering or Vehicle Modifications for important information.
For vehicles repaired under warranty, use the table.
Disclaimer
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Engine Control Module: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Engine Control Module: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Engine Control Module: Connector Views
Electronic Control Module (ECM) - C1 (Pin 1 To 24)
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Electronic Control Module (ECM) - C1 (Pin 27 To 73)
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Electronic Control Module (ECM) - C2 (Pin 2 To 29)
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Electronic Control Module (ECM) - C2 (Pin 30 To 80)
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Electronic Control Module (ECM) C1 (Pin 1 To 27)
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Electronic Control Module (ECM) C1 (Pin 28 To 73)
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Electronic Control Module (ECM) C2 (Pin 2 To 29)
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Electronic Control Module (ECM) C2 (Pin 30 To 80)
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Engine Control Module: Description and Operation
ENGINE CONTROL MODULE DESCRIPTION
The engine control module (ECM) interacts with many emission related components and systems,
and monitors the emission related components and systems for deterioration. OBD II diagnostics
monitor the system performance and a diagnostic trouble code (DTC) sets if the system
performance degrades.The malfunction indicator lamp (MIL) operation and the DTC storage are
dictated by the DTC type. A DTC is ranked as a Type A or Type B if the DTC is emissions related.
Type C is a non-emissions related DTC.The ECM is in the engine compartment. The ECM is the
control center of the engine controls system. The ECM controls the following components:
- The fuel injection system
- The ignition system
- The emission control systems
- The on-board diagnostics
- The A/C and fan systems
- The throttle actuation control (TAC) system
The ECM constantly monitors the information from various sensors and other inputs, and controls
the systems that affect the vehicle performance and the emissions. The ECM also performs
diagnostic tests on various parts of the system. The ECM can recognize operational problems and
alert the driver via the MIL. When the ECM detects a malfunction, the ECM stores a DTC. The
condition area is identified by the particular DTC that is set. This aids the technician in making
repairs.
ECM Function
The engine control module (ECM) can supply 5 volts or 12 volts to the various sensors or switches.
This is done through pull-up resistors to the regulated power supplies within the ECM. In some
cases, even an ordinary shop voltmeter will not give an accurate reading because the resistance is
too low. Therefore, a DMM with at least 10 megaohms input impedance is required in order to
ensure accurate voltage readings.The ECM controls the output circuits by controlling the ground or
the power feed circuit through the transistors or a device called an output driver module.
EEPROM
The electronically erasable programmable read only memory (EEPROM) is a permanent memory
that is physically part of the engine control module (ECM). The EEPROM contains program and
calibration information that the ECM needs in order to control the powertrain operation.Special
equipment, as well as the correct program and calibration for the vehicle, are required in order to
reprogram the ECM.
Data Link Connector (DLC)
The data link connector (DLC) is a 16-pin connector that provides the technician a means of
accessing serial data for aid in the diagnosis. This connector allows the technician to use a scan
tool in order to monitor the various serial data parameters, and display the DTC information. The
DLC is located inside of the drivers compartment, underneath the dash.
Malfunction Indicator Lamp (MIL)
The malfunction indicator lamp (MIL) is inside of the instrument panel cluster (IPC). The MIL is
controlled by the engine control module (ECM) and illuminates when the ECM detects a condition
that affects the vehicle emissions.
ECM Service Precautions
The engine control module (ECM), by design, can withstand the normal current draws that are
associated with the vehicle operations. However, care must be used in order to avoid overloading
any of these circuits. When testing for opens or shorts, do not ground or apply voltage to any of the
ECM circuits unless the diagnostic procedure instructs you to do so. These circuits should only be
tested with a DMM.
Emissions Diagnosis For State I/M Programs
This OBD II equipped vehicle is designed to diagnose any conditions that could lead to excessive
levels of the following emissions:
- Hydrocarbons (HC)
- Carbon monoxide (CO)
- Oxides of nitrogen (NOx)
- Evaporative emission (EVAP) system losses
Should this vehicles on-board diagnostic system (ECM) detect a condition that could result in
excessive emissions, the ECM turns ON the malfunction indicator lamp (MIL) and stores a DTC
that is associated with the condition.
Aftermarket (Add-On) Electrical And Vacuum Equipment
NOTE:
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- Do not attach add-on vacuum operated equipment to this vehicle. The use of add-on vacuum
equipment may result in damage to vehicle components or systems.
- Connect any add-on electrically operated equipment to the vehicle's electrical system at the
battery (power and ground) in order to prevent damage to the vehicle. Aftermarket, add-on,
electrical and vacuum equipment is defined as any equipment installed on a vehicle after leaving
the factory that connects to the vehicles electrical or vacuum systems. No allowances have been
made in the vehicle design for this type of equipment. Add-on electrical equipment, even when
installed to these strict guidelines, may still cause the powertrain system to malfunction. This may
also include equipment not connected to the vehicle electrical system, such as portable telephones
and radios. Therefore, the first step in diagnosing any powertrain condition is to eliminate all of the
aftermarket electrical equipment from the vehicle. After this is done, if the problem still exists, the
problem may be diagnosed in the normal manner.
Electrostatic Discharge (ESD) Damage
IMPORTANT: In order to prevent possible electrostatic discharge damage to the engine control
module (ECM), DO NOT touch the connector pins on the ECM. The electronic components that are
used in the control systems are often designed to carry very low voltage. The electronic
components are susceptible to damage caused by electrostatic discharge. Less than 100 volts of
static electricity can cause damage to some electronic components. There are several ways for a
person to become statically charged. The most common methods of charging are by friction and by
induction. An example of charging by friction is a person sliding across a car seat.Charging by
induction occurs when a person with well insulated shoes stands near a highly charged object and
momentarily touches ground. Charges of the same polarity are drained off leaving the person
highly charged with the opposite polarity. Static charges can cause damage, therefore, it is
important to use care when handling and testing electronic components.
Emissions Control Information Label
The underhood Vehicle Emissions Control Information Label contains important emission
specifications and setting procedures. In the upper left corner is the exhaust emission information.
This identifies the year, the manufacturing division of the engine, the displacement of the engine in
liters, the class of the vehicle, and type of fuel metering system. There is also an illustrated
emission components and vacuum hose schematic. This label is located in the engine
compartment of every General Motors vehicle. If the label has been removed, it can be ordered
from GM service parts operations (GMSPO).
Underhood Inspection
IMPORTANT: This inspection is very important and must be done carefully and thoroughly.
Perform a careful underhood inspection when performing any diagnostic procedure or diagnosing
the cause of an emission test failure. This can often lead to repairing a condition without further
steps. Use the following guidelines when performing an inspection:
- Inspect all of the vacuum hoses for correct routing, pinches, cuts, or disconnects.
- Inspect any hoses that are difficult to see.
- Inspect all of the wires in the engine compartment for the following conditions: Burned or chafed spots
- Pinched wires
- Contact with sharp edges
- Contact with hot exhaust manifolds
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Engine Control Module: Service and Repair
ENGINE CONTROL MODULE REPLACEMENT
NOTE:
- Turn the ignition OFF when installing or removing the control module connectors and
disconnecting or reconnecting the power to the control module (battery cable, powertrain control
module (PCM)/engine control module (ECM)/transaxle control module (TCM) pigtail, control
module fuse, jumper cables, etc.) in order to prevent internal control module damage.
- Control module damage may result when the metal case contacts battery voltage. DO NOT
contact the control module metal case with battery voltage when servicing a control module, using
battery booster cables, or when charging the vehicle battery.
- In order to prevent any possible electrostatic discharge damage to the control module, do no
touch the connector pins or the soldered components on the circuit board.
- Remove any debris from around the control module connector surfaces before servicing the
control module. Inspect the control module connector gaskets when diagnosing or replacing the
control module. Ensure that the gaskets are installed correctly. The gaskets prevent contaminant
intrusion into the control module.
- The replacement control module must be programmed.
IMPORTANT:
- It is necessary to record the remaining engine oil life. If the replacement module is not programed
with the remaining engine oil life, the engine oil life will default to 100 percent. If the replacement
module is not programmed with the remaining engine oil life, the engine oil will need to be changed
at 5000 km (3,000 mi) from the last engine oil change.
- It is necessary to record the remaining automatic transmission fluid life. If the replacement module
is not programed with the remaining automatic transmission fluid life, the automatic transmission
fluid life will default to 100 percent. If the replacement module is not programmed with the
remaining automatic transmission fluid life, the automatic transmission fluid will need to be changed
at 83000 km (50,000 mi) from the last automatic transmission fluid change.
Removal Procedure
1. Using a scan tool, retrieve the percentage of remaining engine oil and the remaining automatic
transmission fluid life. Record the remaining engine
oil and the remaining automatic transmission fluid life.
2. Slide the engine control module (ECM) retainer rearward, disengaging the retainer from the
battery shield. 3. Remove the ECM retainer from the top of the battery shield.
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4. Remove the ECM from the retainer. 5. Place the ECM on the battery shield.
6. Disconnect the negative battery cable. 7. Disconnect the engine wiring harness electrical
connectors (2) from the ECM.
Installation Procedure
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1. Connect the engine wiring harness electrical connectors (2) to the ECM. 2. Place the ECM on
the battery shield.
3. Install the ECM to the retainer.
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4. Position the ECM and retainer to the top of the battery shield. 5. Slide the ECM retainer
rearward, engaging the retainer to the battery shield. 6. Connect the negative battery cable. 7.
Reprogram the PCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
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Fuel Pump Relay: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Fuel Pump Relay: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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and Instructions > Page 663
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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Modules - Fuel Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information
and Instructions > Page 691
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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and Instructions > Page 692
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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and Instructions > Page 693
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Modules - Fuel Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information
and Instructions > Page 696
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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and Instructions > Page 697
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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and Instructions > Page 698
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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and Instructions > Page 699
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Modules - Fuel Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information
and Instructions > Page 700
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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and Instructions > Page 701
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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and Instructions > Page 702
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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and Instructions > Page 703
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and Instructions > Page 704
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Ignition System > Ignition Control Module > Component Information > Locations
Ignition Control Module: Locations
Top Of The Engine
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Modules - Ignition System > Ignition Control Module > Component Information > Locations > Page 709
Rear Of The Engine
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Modules - Ignition System > Ignition Control Module > Component Information > Locations > Page 710
Ignition Control Module
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Modules - Ignition System > Ignition Control Module > Component Information > Service and Repair > Ignition Coil/Control
Module Replacement
Ignition Control Module: Service and Repair Ignition Coil/Control Module Replacement
IGNITION COIL/CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. Disconnect the spark plug wires. Note the position from which the wires are removed. 3.
Disconnect the ignition coil/control module electrical connectors. 4. Remove the 4 bolts securing
the ignition coil/control module to the ignition control module bracket. 5. Remove the ignition
coil/control module.
INSTALLATION PROCEDURE
1. Install the ignition coil/control module to the ignition control module bracket.
2. NOTE: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Ignition System > Ignition Control Module > Component Information > Service and Repair > Ignition Coil/Control
Module Replacement > Page 713
Install the 4 bolts securing the ignition coil/control module to the ignition control module bracket.
Tighten the bolts to 4.5 N.m (40 lb in).
3. Connect the ignition coil/control module electrical connectors. 4. Connect the spark plug wires. 5.
Install the injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Ignition System > Ignition Control Module > Component Information > Service and Repair > Ignition Coil/Control
Module Replacement > Page 714
Ignition Control Module: Service and Repair Ignition Control Module Bracket Replacement
IGNITION CONTROL MODULE BRACKET REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. Disconnect the ignition coil/control module electrical connectors. 3. Remove the spark plug wire
retainer (1) from the ignition control module bracket. 4. Remove the 4 bolts securing the ignition
coil/control module to the ignition control module bracket. 5. Position the ignition coil/control module
aside out of the way. 6. Remove the bolt (3) from the fuel injector wire harness bracket (4) and
positive crankcase ventilation (PCV) valve fresh air tube retainer. 7. Remove the engine wire
harness retainers from the ignition control module bracket studs (5).
8. Remove the nut (1) retaining the heater outlet pipe. 9. Lift pipe up slightly to gain access for the
removal of the 2 ignition control module bracket bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Ignition System > Ignition Control Module > Component Information > Service and Repair > Ignition Coil/Control
Module Replacement > Page 715
10. Remove the ignition control module bracket bolts (2). 11. Remove the ignition control module
bracket nuts (6). 12. Remove the ignition control module bracket.
INSTALLATION PROCEDURE
1. Install the ignition control module bracket.
2. NOTE: Refer to Fastener Notice.
Install the ignition control module bracket nuts (6).
Tighten the nuts to 25 N.m (18 lb ft).
3. Install the ignition control module bracket bolts (2).
Tighten the bolts to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Powertrain Management > Relays and
Modules - Ignition System > Ignition Control Module > Component Information > Service and Repair > Ignition Coil/Control
Module Replacement > Page 716
4. Install the nut (1) retaining the heater outlet pipe.
Tighten the nut to 25 N.m (18 lb ft).
5. Install the engine wire harness retainers to the ignition control module bracket studs (5). 6. Install
the bolt (3) from the fuel injector wire harness bracket (4) and PCV valve fresh air tube retainer.
Tighten the bolts to 5 N.m (44 lb in).
7. Install the ignition coil/control module to the ignition control module bracket. 8. Install the 4 bolts
securing the ignition coil/control module to the ignition control module bracket.
Tighten the bolts to 4.5 N.m (40 lb in).
9. Install the spark plug wire retainer (1) to the ignition control module bracket.
10. Connect the ignition coil/control module electrical connectors. 11. Install the injector sight
shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 08-09-41-002F >
Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set
Air Bag Control Module: Customer Interest Restraints - Air Bag Lamp ON/Multiple DTC Set
TECHNICAL
Bulletin No.: 08-09-41-002F
Date: June 10, 2010
Subject: Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent
AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020,
B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set (Inspect and Replace Connector
Position Assurance (CPA) Retainer)
Models:
2005-2007 Buick Rainier 2006-2009 Buick Allure (Canada only), LaCrosse, Lucerne 2008-2010
Buick Enclave 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade Models 2008-2009 Cadillac
SRX, XLR 2008-2010 Cadillac CTS, STS 2005-2006 Chevrolet SSR 2005-2009 Chevrolet
TrailBlazer, TrailBlazer EXT 2005-2010 Chevrolet Cobalt 2006-2007 Chevrolet Monte Carlo
2006-2010 Chevrolet Corvette, HHR, Impala, Malibu Models (includes Malibu Classic) 2007-2009
Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2008-2010
Chevrolet Express 2009-2010 Chevrolet Traverse 2005-2009 GMC Envoy Models 2007-2010 GMC
Acadia, Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2008-2010 GMC Savana
2005-2006 Pontiac Pursuit 2005-2009 Pontiac G6 2006-2009 Pontiac Solstice 2007-2009 Pontiac
G5, Torrent 2008-2009 Pontiac G8 2005-2009 Saab 9-7X 2007-2009 Saturn AURA, OUTLOOK,
SKY 2008-2009 Saturn VUE 2008-2009 HUMMER H2 2007-2008 Daewoo G2X 2007-2009 Opel
GT
Supercede: This bulletin is being revised to update the Warranty Information and add Saab
Warranty Information. Please discard Corporate Bulletin Number 08-09-41-002E (Section 09 Restraints).
Condition
- Some customers may comment on an intermittent or current AIR BAG indicator or lamp being
illuminated on the instrument panel cluster (IPC). Important This bulletin only applies to the
following DTCs:
- Technicians may observe DTC(s) B0012 04, 0D, 0E; B0013 04, 0D, 0E; B0015 04, 0D, 0E;
B0016 04, 0D, 0E; B0019 04, 0D, 0E; B0020 04, 0D, 0E; B0022, B0023 04, 0D, 0E; B0033 04, 0D,
0E; B0040 04, 0D, 0E; B0042 or B0044 set as Current or in History in the sensing and diagnostic
module (SDM).
Cause
This condition may be caused by a loose, missing, or damaged connector position assurance
(CPA) retainer at a supplemental inflatable restraint (SIR) module electrical connector, or a
deployment loop wiring harness electrical connector.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 08-09-41-002F >
Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 726
Caution
When performing service on or near the SIR components or the SIR wiring, the SIR system must
be disabled. Failure to observe the correct procedure could cause deployment of the SIR
components. Serious injury can occur. Failure to observe the correct procedure could also result in
unnecessary SIR system repairs.
1. Perform the Diagnostic System Check-Vehicle. 2. Identify the DTC that is set AND review the
DTC Descriptor in the corresponding diagnostic procedure. Refer to Diagnostic Trouble Code
(DTC)
List-Vehicle in SI.
3. Using the information from the DTC Descriptor, determine the location of the affected electrical
connector. Refer to SIR Identification Views and
the Master Electrical Component List in SI.
4. Turn OFF the ignition and disable the supplemental inflatable restraint (SIR) system. Refer to
SIR Disabling and Enabling in SI. 5. BEFORE removing, INSPECT the CPA retainer at the
electrical connector.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
‹› If the CPA retainer is loose, damaged, or will not seat in the connector, replace it with a new one.
Reinstall the CPA correctly by first pushing
the connector body in completely, and then pushing the CPA retainer in completely.
‹› If the CPA retainer is not loose or damaged and is properly seated, proceed to Step 6.
6. Remove the CPA retainer and disconnect the electrical connector. Inspect the terminals for the
following conditions:
- Corrosion
- Contamination
- Terminal tension
- Damage
Important The terminals in the SIR/SRS system are made with a special plating. This plating
provides the necessary contact integrity for the sensitive, low energy circuits. Use the J-38125
SIR/SRS Terminal Repair Kit for repairing SIR/SRS terminals and connectors. DO NOT substitute
any other terminals for those in the repair kit.
‹› If the terminals are damaged, corrosion is observed, or have poor tension, repair or replace as
necessary. Apply dielectric grease, GM P/N
12345579 (in Canada, use P/N 10953481) on the connector pins and terminals when
reassembling. Refer to SIR/SRS Wiring Repairs in SI.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
7. Connect the electrical connector, and install the CPA retainer. 8. Enable the supplemental
inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling in SI. 9. Clear the DTC with a
scan tool.
10. Verify that the DTC does not reset by performing the Diagnostic Repair Verification in SI.
‹› If any DTC resets, then refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Parts Information
Note
If the CPA retainer P/N 54590003 (Orange CPA) cannot be located in the J-38125 SIR/SRS
terminal repair kit, contact Kent Moore Tools and order P/N 54590003-PKG to obtain a package of
5.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 08-09-41-002F >
Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 727
Warranty Information (excluding Saab U.S. Models)
Important Select the appropriate Labor Operation for the repair that is performed.
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 06-09-41-006D >
Dec > 07 > Restraints - Airbag Light On/DTC B0081 Set
Air Bag Control Module: Customer Interest Restraints - Airbag Light On/DTC B0081 Set
Bulletin No.: 06-09-41-006D
Date: December 13, 2007
TECHNICAL
Subject: Airbag Light On, DTC B0081 Set (Clear DTC Using Specific Procedure)
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
Supercede:
This bulletin is being revised to add the 2008 model year. Please discard Corporate Bulletin
Number 06-09-41-006C (Section 09 - Restraints).
Condition
Some customers may comment on the airbag light being illuminated. Upon investigation, the
technician may find DTC B0081 with symptom code 0F or 5A set.
Cause
This condition may be caused by a low state of charge or a dead battery in the vehicle.
Correction
The code can be cleared using the following procedure. Once the code is cleared, the airbag light
will go out. Key ON and engine OFF.
Use the scan tool to perform the Re-Zero Passenger Presence System within the Module Setup of
the Passenger Presence System (PPS).
After all procedures have been successfully completed, retrieve the DTCs from PPS and clear all
the DTCs.
Verify that the airbag light is no longer illuminated.
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 06-09-41-006D >
Dec > 07 > Restraints - Airbag Light On/DTC B0081 Set > Page 732
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: >
08-09-41-002F > Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set
Air Bag Control Module: All Technical Service Bulletins Restraints - Air Bag Lamp ON/Multiple DTC
Set
TECHNICAL
Bulletin No.: 08-09-41-002F
Date: June 10, 2010
Subject: Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent
AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020,
B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set (Inspect and Replace Connector
Position Assurance (CPA) Retainer)
Models:
2005-2007 Buick Rainier 2006-2009 Buick Allure (Canada only), LaCrosse, Lucerne 2008-2010
Buick Enclave 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade Models 2008-2009 Cadillac
SRX, XLR 2008-2010 Cadillac CTS, STS 2005-2006 Chevrolet SSR 2005-2009 Chevrolet
TrailBlazer, TrailBlazer EXT 2005-2010 Chevrolet Cobalt 2006-2007 Chevrolet Monte Carlo
2006-2010 Chevrolet Corvette, HHR, Impala, Malibu Models (includes Malibu Classic) 2007-2009
Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2008-2010
Chevrolet Express 2009-2010 Chevrolet Traverse 2005-2009 GMC Envoy Models 2007-2010 GMC
Acadia, Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2008-2010 GMC Savana
2005-2006 Pontiac Pursuit 2005-2009 Pontiac G6 2006-2009 Pontiac Solstice 2007-2009 Pontiac
G5, Torrent 2008-2009 Pontiac G8 2005-2009 Saab 9-7X 2007-2009 Saturn AURA, OUTLOOK,
SKY 2008-2009 Saturn VUE 2008-2009 HUMMER H2 2007-2008 Daewoo G2X 2007-2009 Opel
GT
Supercede: This bulletin is being revised to update the Warranty Information and add Saab
Warranty Information. Please discard Corporate Bulletin Number 08-09-41-002E (Section 09 Restraints).
Condition
- Some customers may comment on an intermittent or current AIR BAG indicator or lamp being
illuminated on the instrument panel cluster (IPC). Important This bulletin only applies to the
following DTCs:
- Technicians may observe DTC(s) B0012 04, 0D, 0E; B0013 04, 0D, 0E; B0015 04, 0D, 0E;
B0016 04, 0D, 0E; B0019 04, 0D, 0E; B0020 04, 0D, 0E; B0022, B0023 04, 0D, 0E; B0033 04, 0D,
0E; B0040 04, 0D, 0E; B0042 or B0044 set as Current or in History in the sensing and diagnostic
module (SDM).
Cause
This condition may be caused by a loose, missing, or damaged connector position assurance
(CPA) retainer at a supplemental inflatable restraint (SIR) module electrical connector, or a
deployment loop wiring harness electrical connector.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: >
08-09-41-002F > Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 738
Caution
When performing service on or near the SIR components or the SIR wiring, the SIR system must
be disabled. Failure to observe the correct procedure could cause deployment of the SIR
components. Serious injury can occur. Failure to observe the correct procedure could also result in
unnecessary SIR system repairs.
1. Perform the Diagnostic System Check-Vehicle. 2. Identify the DTC that is set AND review the
DTC Descriptor in the corresponding diagnostic procedure. Refer to Diagnostic Trouble Code
(DTC)
List-Vehicle in SI.
3. Using the information from the DTC Descriptor, determine the location of the affected electrical
connector. Refer to SIR Identification Views and
the Master Electrical Component List in SI.
4. Turn OFF the ignition and disable the supplemental inflatable restraint (SIR) system. Refer to
SIR Disabling and Enabling in SI. 5. BEFORE removing, INSPECT the CPA retainer at the
electrical connector.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
‹› If the CPA retainer is loose, damaged, or will not seat in the connector, replace it with a new one.
Reinstall the CPA correctly by first pushing
the connector body in completely, and then pushing the CPA retainer in completely.
‹› If the CPA retainer is not loose or damaged and is properly seated, proceed to Step 6.
6. Remove the CPA retainer and disconnect the electrical connector. Inspect the terminals for the
following conditions:
- Corrosion
- Contamination
- Terminal tension
- Damage
Important The terminals in the SIR/SRS system are made with a special plating. This plating
provides the necessary contact integrity for the sensitive, low energy circuits. Use the J-38125
SIR/SRS Terminal Repair Kit for repairing SIR/SRS terminals and connectors. DO NOT substitute
any other terminals for those in the repair kit.
‹› If the terminals are damaged, corrosion is observed, or have poor tension, repair or replace as
necessary. Apply dielectric grease, GM P/N
12345579 (in Canada, use P/N 10953481) on the connector pins and terminals when
reassembling. Refer to SIR/SRS Wiring Repairs in SI.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
7. Connect the electrical connector, and install the CPA retainer. 8. Enable the supplemental
inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling in SI. 9. Clear the DTC with a
scan tool.
10. Verify that the DTC does not reset by performing the Diagnostic Repair Verification in SI.
‹› If any DTC resets, then refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Parts Information
Note
If the CPA retainer P/N 54590003 (Orange CPA) cannot be located in the J-38125 SIR/SRS
terminal repair kit, contact Kent Moore Tools and order P/N 54590003-PKG to obtain a package of
5.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: >
08-09-41-002F > Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 739
Warranty Information (excluding Saab U.S. Models)
Important Select the appropriate Labor Operation for the repair that is performed.
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: >
06-09-41-006D > Dec > 07 > Restraints - Airbag Light On/DTC B0081 Set
Air Bag Control Module: All Technical Service Bulletins Restraints - Airbag Light On/DTC B0081
Set
Bulletin No.: 06-09-41-006D
Date: December 13, 2007
TECHNICAL
Subject: Airbag Light On, DTC B0081 Set (Clear DTC Using Specific Procedure)
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
Supercede:
This bulletin is being revised to add the 2008 model year. Please discard Corporate Bulletin
Number 06-09-41-006C (Section 09 - Restraints).
Condition
Some customers may comment on the airbag light being illuminated. Upon investigation, the
technician may find DTC B0081 with symptom code 0F or 5A set.
Cause
This condition may be caused by a low state of charge or a dead battery in the vehicle.
Correction
The code can be cleared using the following procedure. Once the code is cleared, the airbag light
will go out. Key ON and engine OFF.
Use the scan tool to perform the Re-Zero Passenger Presence System within the Module Setup of
the Passenger Presence System (PPS).
After all procedures have been successfully completed, retrieve the DTCs from PPS and clear all
the DTCs.
Verify that the airbag light is no longer illuminated.
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: >
06-09-41-006D > Dec > 07 > Restraints - Airbag Light On/DTC B0081 Set > Page 744
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Page 745
Air Bag Control Module: Locations
SIR Component Views
Center of the Floor
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Page 746
Air Bag Control Module: Diagrams
SIR Connector End Views
Inflatable Restraint Sensing and Diagnostic Module (SDM) (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Page 747
Inflatable Restraint Sensing and Diagnostic Module (SDM) (-ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Page 748
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Page 749
Air Bag Control Module: Service and Repair
Inflatable Restraint Sensing and Diagnostic Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Error > Page 758
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Error > Page 759
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Error > Page 760
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Error > Page 761
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Update > Page 766
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Update > Page 767
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Update > Page 768
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > NHTSA07V344000 >
Aug > 07 > Recall 07V344000: Seat Occupant System Reprogramming
Seat Occupant Classification Module - Air Bag: Recalls Recall 07V344000: Seat Occupant System
Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Customer Interest: > 08-09-41-004
> Mar > 08 > Restraints - AIr Bag Lamp ON/DTC B1000 Set
Seat Occupant Classification Module - Air Bag: Customer Interest Restraints - AIr Bag Lamp
ON/DTC B1000 Set
TECHNICAL
Bulletin No.: 08-09-41-004
Date: March 12, 2008
Subject: Airbag Light On, DTC B1000 Set (Reprogram Passenger Presence System (PPS)
Module)
Models: 2008 Buick Enclave 2005-2008 Cadillac SRX 2005-2008 Chevrolet Equinox 2007-2008
GMC Acadia 2006-2008 Pontiac Torrent 2007-2008 Saturn OUTLOOK 2007-2008 Suzuki XL-7
Condition
Some customers may comment on the airbag light being illuminated.
Upon investigation, the technician may find DTC B1000 with symptom code 37 set as current or in
history.
Correction
Important:
You must contact Techline to obtain a VCI number.
New software for the Passenger Presence System (PPS) has been released to disable this
diagnostic check to prevent false setting of DTC B1000. Reprogram the PPS module with updated
calibration files using the TIS2WEB Service Programming System (SPS) application. As always,
make sure your Tech 2(R) is updated with the latest software version.
Perform a PPS rezero/preload procedure upon a successful module reprogramming event.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 08-09-41-004 > Mar > 08 > Restraints - AIr Bag Lamp ON/DTC B1000 Set
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Restraints - AIr Bag
Lamp ON/DTC B1000 Set
TECHNICAL
Bulletin No.: 08-09-41-004
Date: March 12, 2008
Subject: Airbag Light On, DTC B1000 Set (Reprogram Passenger Presence System (PPS)
Module)
Models: 2008 Buick Enclave 2005-2008 Cadillac SRX 2005-2008 Chevrolet Equinox 2007-2008
GMC Acadia 2006-2008 Pontiac Torrent 2007-2008 Saturn OUTLOOK 2007-2008 Suzuki XL-7
Condition
Some customers may comment on the airbag light being illuminated.
Upon investigation, the technician may find DTC B1000 with symptom code 37 set as current or in
history.
Correction
Important:
You must contact Techline to obtain a VCI number.
New software for the Passenger Presence System (PPS) has been released to disable this
diagnostic check to prevent false setting of DTC B1000. Reprogram the PPS module with updated
calibration files using the TIS2WEB Service Programming System (SPS) application. As always,
make sure your Tech 2(R) is updated with the latest software version.
Perform a PPS rezero/preload procedure upon a successful module reprogramming event.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error >
Page 787
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error >
Page 788
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error >
Page 789
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error >
Page 790
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update >
Page 795
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update >
Page 796
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update >
Page 797
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > NHTSA07V344000 > Aug > 07 > Recall 07V344000: Seat Occupant
System Reprogramming
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Recall 07V344000:
Seat Occupant System Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 08-09-41-004 > Mar > 08 > Restraints - AIr Bag Lamp ON/DTC B1000 Set
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Restraints - AIr Bag
Lamp ON/DTC B1000 Set
TECHNICAL
Bulletin No.: 08-09-41-004
Date: March 12, 2008
Subject: Airbag Light On, DTC B1000 Set (Reprogram Passenger Presence System (PPS)
Module)
Models: 2008 Buick Enclave 2005-2008 Cadillac SRX 2005-2008 Chevrolet Equinox 2007-2008
GMC Acadia 2006-2008 Pontiac Torrent 2007-2008 Saturn OUTLOOK 2007-2008 Suzuki XL-7
Condition
Some customers may comment on the airbag light being illuminated.
Upon investigation, the technician may find DTC B1000 with symptom code 37 set as current or in
history.
Correction
Important:
You must contact Techline to obtain a VCI number.
New software for the Passenger Presence System (PPS) has been released to disable this
diagnostic check to prevent false setting of DTC B1000. Reprogram the PPS module with updated
calibration files using the TIS2WEB Service Programming System (SPS) application. As always,
make sure your Tech 2(R) is updated with the latest software version.
Perform a PPS rezero/preload procedure upon a successful module reprogramming event.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page
812
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page
813
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page
814
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page
815
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page
820
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page
821
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page
822
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > NHTSA07V344000 > Aug > 07 > Recall 07V344000: Seat Occupant System
Reprogramming
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Recall 07V344000:
Seat Occupant System Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A
> Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A
> Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 837
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A
> Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 838
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A
> Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 839
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A
> Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 840
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Customer Interest:
> 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Steering Control Module: Customer Interest Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Customer Interest:
> 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page 846
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Steering Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545 > Page 852
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming >
Page 857
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming >
Page 858
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming >
Page 859
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming >
Page 860
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Steering Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Steering Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
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Bulletins for Steering Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545 > Page 866
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
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Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
872
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
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Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
873
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
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Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
874
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
875
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Page 876
Steering Control Module: Diagrams
Power Steering Connector End Views
Power Steering Control Module (PSCM)
Power Steering Control Module (PSCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Wheels and Tires > Tire Pressure Module > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs
Tire Pressure Module: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Steering and Suspension > Relays and
Modules - Wheels and Tires > Tire Pressure Monitor Receiver / Transponder > Component Information > Technical Service
Bulletins > Tire Monitor System - TPM Sensor Information
Tire Pressure Monitor Receiver / Transponder: Technical Service Bulletins Tire Monitor System TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Transmission and Drivetrain > Relays and
Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Customer Interest for
Control Module: > 07-07-30-014 > May > 07 > A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Control Module: Customer Interest A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Transmission and Drivetrain > Relays and
Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Control Module: > 07-07-30-014 > May > 07 > A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Control Module: All Technical Service Bulletins A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Transmission and Drivetrain > Relays and
Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 901
Control Module: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor 62 - Automatic Transmission Output
Speed Sensor 73 - Automatic Transmission Input Speed Sensor 75 - Transmission Control Module
(TCM) 300 - 1-2, 2-3, Reverse, Shift Solenoid Valve Assembly (S3) 303 - 3-4, 4-5 Shift Solenoid
Valve Assembly (S4) 305 - Reverse Shift Valve Solenoid (S5) 308 - 2-3, 3-4 Shift Solenoid Valve
Assembly (S2) 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1) 316 - Line Pressure Control
Solenoid Valve Assembly (SLT) 339 - TCC Lock Up Pressure Control Solenoid Valve Assembly
(SLU)
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Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 902
340 - Shift Pressure Control Solenoid Valve Assembly (SLS)
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Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 903
Control Module: Diagrams
Transmission Control Module
Transmission Control Module
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Control Module: Service and Repair
TRANSMISSION CONTROL MODULE REPLACEMENT
Removal Procedure
1. Remove the battery tray. See: Starting and Charging/Battery/Battery Tray/Service and
Repair/Battery Tray Replacement
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
transmission control module (TCM).
2. Apply the parking brake and place control shift lever in neutral (N).
3. Remove the manual shaft detent lever (2). See: Powertrain Management/Computers and Control
Systems/Sensors and Switches - Computers and
Control Systems/Transmission Position Switch/Sensor/Service and Repair/Transaxle Range
Switch Replacement
4. Disconnect the electrical connectors from the TCM. 5. Remove the TCM bolts (3). 6. Remove
the TCM (4) by sliding off of the manual shaft.
Installation Procedure
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1. Using an adjustable wrench on the manual shaft detent lever (710), turn the shaft clockwise until
it stops. 2. Turn the shaft counterclockwise one position to the neutral location. To verify turning the
shaft in the correct direction, on the manual shaft detent
lever (710) the reverse position is larger and more resistance can be felt.
3. Inspect the condition of the connector pins on the wiring harness assembly (33) for foreign
material, bent pins, or broken pins. 4. Ensure the TCM seal (72) is installed.
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5. Turn the slot in the TCM to align the 2 marks. Do not turn more than 60 degrees.
6. Install the TCM (4) over the manual shaft.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct
part number for that application. Fasteners requiring replacement or fasteners requiring the use of
thread locking compound or sealant are identified in the service procedure. Do not use paints,
lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These
coatings affect fastener torque and joint clamping force and may damage the fastener. Use the
correct tightening sequence and specifications when installing fasteners in order to avoid damage
to parts and systems.
7. Install the bolts (3).
Tighten the bolts to 25 Nm (18 lb ft).
8. Connect the electrical connectors (3, 5) to the TCM. 9. Install the manual shaft detent lever.
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10. Install the battery tray.
Important: DTC P0602 is set with all new service transaxle control modules. When the transaxle
control module is reprogrammed with the correct software and calibrations, DTC P0602 will be
erased.
11. Reprogram the TCM with the correct calibration. See: Testing and Inspection/Programming and
Relearning 12. Perform the transmission adaptive learn procedure. See: Testing and
Inspection/Programming and Relearning
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Chevrolet Workshop Manuals > Relays and Modules > Relays and Modules - Transmission and Drivetrain > Relays and
Modules - Differential > Control Unit, Differential Lock > Component Information > Service and Repair
Control Unit: Service and Repair
Rear Differential Clutch Control Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Accessories and Optional Equipment >
Hood Sensor/Switch (For Alarm) > Component Information > Diagrams
Hood Sensor/Switch (For Alarm): Diagrams
Immobilizer Connector End Views
Hood Ajar Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Accessories and Optional Equipment >
Pedal Positioning Sensor > Component Information > Service and Repair > Procedures
Pedal Positioning Sensor: Procedures
BRAKE PEDAL POSITION SENSOR CALIBRATION
CALIBRATION CRITERIA
The brake pedal position sensor (BPPS) receives a low reference signal and a 5-volt reference
signal from the BCM. Whenever the brake pedal is applied, the BPPS applies a variable voltage
signal to the BCM through the stop lamp switch signal circuit. The BPPS calibration must be
performed after the BPPS or body control module (BCM) have been serviced. The calibration
procedure will set BPPS home value. This value is used by the BCM to determine the action of the
driver applying the brake system and to provide this information to the vehicle subsystems via the
communication bus.
CALIBRATION PROCEDURE
- Install a scan tool.
- Turn ON the ignition, with the engine OFF.
- Select Diagnostics.
- Select the year.
- Select the vehicle type.
- Select BCM.
- Select Module Setup.
- Select the BPPS calibration procedure and follow the directions displayed on the screen.
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Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Accessories and Optional Equipment >
Pedal Positioning Sensor > Component Information > Service and Repair > Procedures > Page 921
Pedal Positioning Sensor: Removal and Replacement
BRAKE PEDAL POSITION SENSOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Accessories and Optional Equipment >
Remote Switch, Audio - Stereo > Component Information > Technical Service Bulletins > Audio - Inadvertent Steering
Wheel Button Activation
Remote Switch: Technical Service Bulletins Audio - Inadvertent Steering Wheel Button Activation
INFORMATION
Bulletin No.: 08-08-44-028
Date: August 28, 2008
Subject: Information On Inadvertent Steering Wheel Control (SWC) Button Press Causing Radio
Anomalies
Models: 2009 and Prior GM Passenger Cars and Trucks (Including Saturn) 2009 and Prior
HUMMER H2, H3 Models 2009 and Prior Saab 9-7X
All Vehicles with Steering Wheel Controls
This bulletin is being issued to provide a recommendation for vehicles with a customer concern of
the radio station tuning changing by itself, volume changing by itself, radio changing by itself, or
radio muting or going silent when driving and turning the steering wheel.
The switches on the right hand side of the steering wheel are easily pressed and may inadvertently
be pressed when turning the steering wheel.
These concerns may be affected by the location of the steering wheel controls.
Recommendation
Do Not Replace The Radio
1. Please determine that the switch controls on the steering wheel are functioning correctly.
2. Ask the customer if their hand was in close proximity to the steering wheel controls when the
condition happened. Explain to the customer that bumping the controls would have caused this
undesired action. Explain to the customer the proper use and function of the steering wheel
controls.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Accessories and Optional Equipment >
Steering Mounted Controls Assembly > Component Information > Diagrams
Steering Mounted Controls Assembly: Diagrams
Cruise Control Connector End Views
Steering Wheel Control Switch - Left (Chevrolet w/ K34 w/o UK3)
Steering Wheel Controls - Right (UK3)
Steering Wheel Control Switch - Right (Chevrolet w/ K34 w/o UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Accessories and Optional Equipment >
Steering Mounted Controls Assembly > Component Information > Diagrams > Page 929
Steering Wheel Control Switch - Left (Chevrolet w/ K34 and UK3)
Steering Wheel Control Switch - Right (Chevrolet w/ K34 and UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Accessories and Optional Equipment >
Steering Mounted Controls Assembly > Component Information > Diagrams > Page 930
Steering Wheel Controls - Left
Steering Wheel Control Switch - Left (Pontiac w/ K34/UK3)
Steering Wheel Controls - Left
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Accessories and Optional Equipment >
Steering Mounted Controls Assembly > Component Information > Diagrams > Page 931
Steering Wheel Control Switch - Right (Pontiac w/ K34/UK3)
Steering Wheel Controls - Right (UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Accessories and Optional Equipment >
Steering Mounted Controls Assembly > Component Information > Diagrams > Page 932
Steering Mounted Controls Assembly: Service and Repair
Steering Wheel Control Switch Assembly Replacement (Equinox)
Removal Procedure
1. Use a small flat-bladed tool to release the switch assembly from the steering wheel. 2.
Disconnect the cruise switch electrical harness connector from the switch.
Installation Procedure
1. Connect the switch electrical harness connector to the switch. Push in the connector until a click
is heard and pull back to confirm a positive
engagement.
2. Insert the cruise switch into the steering wheel and gently apply pressure to fasten the switch in
the opening.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Hood Switch / Sensor
> Hood Sensor/Switch (For Alarm) > Component Information > Diagrams
Hood Sensor/Switch (For Alarm): Diagrams
Immobilizer Connector End Views
Hood Ajar Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Pedal Positioning
Sensor > Component Information > Service and Repair > Procedures
Pedal Positioning Sensor: Procedures
BRAKE PEDAL POSITION SENSOR CALIBRATION
CALIBRATION CRITERIA
The brake pedal position sensor (BPPS) receives a low reference signal and a 5-volt reference
signal from the BCM. Whenever the brake pedal is applied, the BPPS applies a variable voltage
signal to the BCM through the stop lamp switch signal circuit. The BPPS calibration must be
performed after the BPPS or body control module (BCM) have been serviced. The calibration
procedure will set BPPS home value. This value is used by the BCM to determine the action of the
driver applying the brake system and to provide this information to the vehicle subsystems via the
communication bus.
CALIBRATION PROCEDURE
- Install a scan tool.
- Turn ON the ignition, with the engine OFF.
- Select Diagnostics.
- Select the year.
- Select the vehicle type.
- Select BCM.
- Select Module Setup.
- Select the BPPS calibration procedure and follow the directions displayed on the screen.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Pedal Positioning
Sensor > Component Information > Service and Repair > Procedures > Page 942
Pedal Positioning Sensor: Removal and Replacement
BRAKE PEDAL POSITION SENSOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Power Door Lock
Switch > Component Information > Locations
Power Door Lock Switch: Locations
Driver Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Power Door Lock
Switch > Component Information > Locations > Page 946
Passenger Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Power Door Lock
Switch > Component Information > Locations > Page 947
Power Door Lock Switch: Service and Repair
POWER DOOR LOCK SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Power Mirror Switch >
Component Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Power Mirror Switch >
Component Information > Locations > Page 951
Outside Rearview Mirror Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Power Mirror Switch >
Component Information > Locations > Page 952
Power Mirror Switch: Service and Repair
POWER MIRROR SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Power Seat Switch >
Component Information > Locations
Driver Seat
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Power Seat Switch >
Component Information > Service and Repair > Switch Replacement
Power Seat Switch: Service and Repair Switch Replacement
SEAT SWITCH REPLACEMENT - POWER
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Power Seat Switch >
Component Information > Service and Repair > Switch Replacement > Page 958
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Power Seat Switch >
Component Information > Service and Repair > Switch Replacement > Page 959
Power Seat Switch: Service and Repair Knob Replacement - Power Seat Switch - Seat Cushion
KNOB REPLACEMENT - POWER SEAT SWITCH - SEAT CUSHION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Seat Heater Switch >
Component Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Sunroof / Moonroof
Limit Switch > Component Information > Locations
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Sunroof / Moonroof
Switch > Component Information > Locations
Sunroof / Moonroof Switch: Locations
Front Headliner Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Sunroof / Moonroof
Switch > Component Information > Locations > Page 969
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Sunroof / Moonroof
Switch > Component Information > Locations > Page 970
Sunroof / Moonroof Switch: Service and Repair
SUNROOF SWITCH REPLACEMENT
REMOVAL PROCEDURE
1. Pull gently at front of reading lamp cover to disengage retaining clips. 2. Rotate cover rearward
until rear attaching hooks are released. 3. Disconnect sunroof switch harness from sunroof switch.
4. Remove sunroof switch fasteners and remove sunroof switch.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Body and Frame > Sunroof / Moonroof
Switch > Component Information > Locations > Page 971
1. Install sunroof switch with fasteners.
Tighten sunroof switch to 2.5 N.m (22 lb in)
2. Connect sunroof switch harness to sunroof switch. 3. Position front reading lamp cover into rear
attaching hooks. 4. Rotate front reading lamp cover into lamp assembly forward, then snap cover
into place. 5. Function sunroof switch to ensure proper operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Brake Fluid
Level Sensor/Switch > Component Information > Locations
Brake Fluid Level Sensor/Switch: Locations
Near the Brake Booster
1 - Brake Fluid Level Switch 2 - LF Strut Tower 3 - Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Brake Fluid
Level Sensor/Switch > Component Information > Locations > Page 976
Brake Fluid Level Sensor/Switch: Diagrams
Brake Fluid Level Switch
Brake Fluid Level Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Brake Fluid
Level Sensor/Switch > Component Information > Locations > Page 977
Brake Fluid Level Sensor/Switch: Service and Repair
Master Cylinder Fluid Level Sensor Replacement
Removal Procedure
1. Remove the underhood electrical center. 2. Disconnect the brake fluid level sensor electrical
connector.
3. While simultaneously depressing the retaining tabs on the opposite side of the sensor electrical
connection, carefully pull the sensor from the
master cylinder reservoir.
4. Remove the low brake fluid level sensor.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Brake Fluid
Level Sensor/Switch > Component Information > Locations > Page 978
1. While noting the proper orientation, install the brake fluid level sensor to the master cylinder. 2.
Press the brake fluid level sensor firmly into the master cylinder reservoir, ensuring that the
retaining tabs are fully engaged.
3. Connect the brake fluid level sensor electrical connector. 4. Install the underhood electrical
center.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Lateral
Accelerometer > Component Information > Locations
Lateral Accelerometer: Locations
Center of the Floor
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Lateral
Accelerometer > Component Information > Locations > Page 982
Lateral Accelerometer: Diagrams
Yaw Rate and Lateral Acceleration Sensor
Yaw Rate and Lateral Acceleration Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Parking
Brake Warning Switch > Component Information > Locations
Parking Brake Warning Switch: Locations
Park Brake Assembly
1 - Park Brake Switch 2 - Park Brake Handle 3 - Floor Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Parking
Brake Warning Switch > Component Information > Locations > Page 986
Parking Brake Warning Switch: Diagrams
Park Brake Switch
Park Brake Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Parking
Brake Warning Switch > Component Information > Locations > Page 987
Parking Brake Warning Switch: Service and Repair
Park Brake Warning Lamp Switch Replacement
Removal Procedure
1. Disable the supplemental inflatable restraint (SIR) system. 2. Remove the front floor console. 3.
Disconnect the warning lamp switch electrical connector (2). 4. Remove the warning lamp switch
mounting screw (1). 5. Remove the switch from the park brake lever assembly.
Installation Procedure
1. Align the park brake warning lamp switch locating tab to the locating hole on the park brake lever
assembly. 2. Install the switch to the park brake lever.
Notice: Refer to Fastener Notice .
3. Install the park brake warning lamp switch mounting screw (1).
Tighten the screw to 4 N.m (35 lb in).
4. Connect the park brake warning lamp switch electrical connector (2). 5. Install the front floor
console. 6. Enable the SIR system. 7. Verify correct park brake warning lamp operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Steering
Angle Sensor, Traction Control > Component Information > Service and Repair
Steering Angle Sensor: Service and Repair
Steering Angle Sensor Centering
The steering angle sensor does not require centering often. Centering of the steering angle sensor
might be required after certain service procedures are performed. Some of these procedures are
as follows:
* Steering gear replacement
* Steering column replacement
* Steering angle sensor replacement
* Intermediate shaft replacement
* Antilock brake system (ABS) controller replacement
* Collision or other physical damage
The steering angle sensor centering procedure can be preformed with a scan tool in the automated
center procedure by the following:
1. Using the steering wheel, align the front wheels forward. 2. Set the transmission in the PARK
position. 3. Install the scan tool to the data link connector (DLC). 4. Turn the ignition switch ON,
with the engine OFF. 5. Select Chassis/EBCM control system vehicle stability enhancement
system (VSES), special function test, and Steering Pos. Sensor Calibration. 6. Follow the scan tool
directions to complete the automated centering procedure this should include turning the steering
wheel left 5 degrees and
right 5 degrees and then straight forward.
7. Clear any DTCs that may be set. Perform the Diagnostic System Check to verify no current
DTCs. 8. Centering of the steering angle sensor is complete.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Traction
Control Switch > Component Information > Diagrams
Traction Control Switch: Diagrams
Traction Control Switch
Traction Control Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Traction
Control Switch > Component Information > Diagrams > Page 994
Traction Control Switch: Service and Repair
Traction Control Switch Replacement
Removal Procedure
1. Remove the instrument panel (I/P) trim bezel.
2. Carefully release the retaining tabs and remove the traction control switch from the trim bezel.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Traction
Control Switch > Component Information > Diagrams > Page 995
1. Install the traction control switch to the trim bezel. Ensure that the retaining tabs are fully
engaged.
2. Install the instrument panel (I/P) trim bezel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Wheel
Speed Sensor > Component Information > Locations
Wheel Speed Sensor: Locations
Rear ABS Sensors
1 - Rear Cradle 2 - Wheel Speed Sensor (WSS) LR 3 - Wheel Speed Sensor (WSS) RR
LF Suspension
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Wheel
Speed Sensor > Component Information > Locations > Page 999
1 - C104 Left Shown, C105 Right Similar 2 - Wheel Speed Sensor (WSS) - LF, RF Similar
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Wheel
Speed Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - LF
Wheel Speed Sensor - LF
Reverse Lockout Solenoid
Wheel Speed Sensor - LF
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Wheel
Speed Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF > Page 1002
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - LR
Wheel Speed Sensor - LR
Wheel Speed Sensor - LR
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Wheel
Speed Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF > Page 1003
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - RF
Wheel Speed Sensor - RF
Reverse Lockout Solenoid
Wheel Speed Sensor - RF
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Wheel
Speed Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF > Page 1004
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - RR
Wheel Speed Sensor - RR
Wheel Speed Sensor - RR
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Wheel
Speed Sensor > Component Information > Service and Repair > Front Wheel Speed Sensor Replacement
Wheel Speed Sensor: Service and Repair Front Wheel Speed Sensor Replacement
Front Wheel Speed Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Wheel
Speed Sensor > Component Information > Service and Repair > Front Wheel Speed Sensor Replacement > Page 1007
Wheel Speed Sensor: Service and Repair Rear Wheel Speed Sensor Replacement
Rear Wheel Speed Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Yaw Rate
Sensor > Component Information > Locations
Yaw Rate Sensor: Locations
Center of the Floor
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Yaw Rate
Sensor > Component Information > Locations > Page 1011
Yaw Rate Sensor: Diagrams
Yaw Rate and Lateral Acceleration Sensor
Yaw Rate and Lateral Acceleration Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Brakes and Traction Control > Yaw Rate
Sensor > Component Information > Locations > Page 1012
Yaw Rate Sensor: Service and Repair
Yaw Rate Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Cooling System > Engine - Coolant
Temperature Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component Information >
Specifications
Temperature Versus Resistance
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Cooling System > Engine - Coolant
Temperature Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component Information >
Specifications > Page 1018
Rear Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Cooling System > Engine - Coolant
Temperature Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component Information >
Specifications > Page 1019
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Engine coolant must be drained below the level of the engine coolant temperature (ECT) sensor.
Refer to Draining and Filling Cooling System
(Static Fill) Draining and Filling Cooling System (GE 47716 Fill).
2. Disconnect the ECT sensor harness connector. 3. Remove the ECT sensor.
INSTALLATION PROCEDURE
1. IMPORTANT: Tap out sensor mounting hole in engine head to remove any thread sealant
residue. Clean any sealant residue from old sensor if the sensor is going to be reused.
If the sensor is being reused, apply thread sealant GM P/N 12345382 (Canadian P/N 10953489) or
equivalent, to sensor threads.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the ECT sensor.
Tighten the engine coolant temperature sensor to 23 N.m (17 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Cooling System > Engine - Coolant
Temperature Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component Information >
Specifications > Page 1020
3. Connect the ECT sensor harness connector. Push in the connector until a click is heard, then
pull back to confirm a positive engagement. 4. Fill engine coolant to proper level. Refer to Draining
and Filling Cooling System (Static Fill) Draining and Filling Cooling System (GE 47716
Fill).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Cruise Control > Brake Switch (Cruise
Control) > Component Information > Diagrams
Brake Switch (Cruise Control): Diagrams
Cruise Control Connector End Views
Cruise/Brake Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Cruise Control > Brake Switch (Cruise
Control) > Component Information > Diagrams > Page 1025
Brake Switch (Cruise Control): Adjustments
Cruise Release Switch Adjustment
1. Remove the instrument panel left lower closeout panel.
Notice: Improper cruise control release switch adjustment may cause brake damage such as brake
drag, heat buildup and excessive brake lining wear.
2. Disconnect the cruise brake switch harness connector. 3. Rotate the cruise brake switch
counterclockwise and remove the cruise brake switch from the switch retainer.
Important: Do not depress the brake pedal assembly during the brake switch installation.
Depressing the brake pedal will cause a brake drag condition.
4. Install the cruise brake switch.
* Position the switch into the retainer with the electrical connector index notch pointing to the 1
o'clock position.
* Slide the switch in the retainer until the plunger is fully depressed into the barrel.
* Rotate the switch clockwise until the travel stop has been reached, approximately 60 degrees.
* Inspect the cruise brake switch to ensure the switch is properly locked into the switch retainer with
the cruise brake switch electrical connector index notch pointing to the 3 o'clock position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Cruise Control > Brake Switch (Cruise
Control) > Component Information > Diagrams > Page 1026
5. Connect the cruise brake switch harness connector. 6. Install the instrument panel left lower
closeout panel. 7. Use the scan tool to monitor CRUISE BRAKE SWITCH in the engine control
module (ECM) General Information data table, while depressing
and releasing the brake pedal. Verify the APPLIED and RELEASED states read correctly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Cruise Control > Brake Switch (Cruise
Control) > Component Information > Diagrams > Page 1027
Brake Switch (Cruise Control): Service and Repair
Cruise Release Switch Replacement
Removal Procedure
1. Remove the instrument panel left lower closeout panel.
2. Disconnect the cruise brake switch connector.
3. Rotate the cruise brake switch counterclockwise and remove the cruise brake switch from the
switch retainer.
Important: Depressing the brake pedal will allow easier access of the retainer locking tabs.
4. Gently compress the locking tabs on the cruise brake retainer and remove the switch retainer
from the brake pedal assembly.
Installation Procedure
Important: Ensure that the indexing arrow is facing to the right and the ears on the retainer are fully
extended on the back side of the bracket to prevent the retainer from being pushed out.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Cruise Control > Brake Switch (Cruise
Control) > Component Information > Diagrams > Page 1028
1. Install the cruise brake switch retainer into the upper hole of the brake pedal assembly with the
retainer arrow pointing in the 3 o'clock position.
Important: Do not depress the brake pedal assembly during the cruise brake switch installation.
Depressing the brake pedal during the cruise brake switch installation will cause a brake drag
condition.
2. Install the cruise brake switch.
* Position the switch into the retainer with the electrical connector index notch pointing to the 1
o'clock position.
* Slide the switch in the retainer until the plunger is fully depressed into the barrel.
* Rotate the switch clockwise until the travel stop has been reached, approximately 60 degrees.
* Inspect the cruise brake switch to ensure the switch is properly locked into the switch retainer with
the cruise brake switch electrical connector index notch pointing to the 3 o'clock position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Cruise Control > Brake Switch (Cruise
Control) > Component Information > Diagrams > Page 1029
3. Connect the cruise brake switch harness connector. 4. Install the instrument panel left lower
closeout panel. 5. Use the scan tool to monitor CRUISE BRAKE SWITCH in the engine control
module (ECM) General Information data table, while depressing
and releasing the brake pedal. Verify the APPLIED and RELEASED states read correctly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Engine > Oil Pressure Sender >
Component Information > Diagrams
Oil Pressure Sender: Diagrams
Displays and Gages Connector End Views
Oil Pressure Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Engine > Oil Pressure Sensor >
Component Information > Service and Repair
Oil Pressure Sensor: Service and Repair
Engine Oil Pressure Sensor and/or Switch Replacement
Removal Procedure
1. Raise and support the vehicle.
2. Disconnect the oil pressure indicator switch electrical connector (2).
3. Remove the oil pressure indicator switch from the engine block.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Engine > Oil Pressure Sensor >
Component Information > Service and Repair > Page 1037
1. Apply sealer to the oil pressure indicator switch threads.
Notice: Refer to Component Fastener Tightening Notice.
2. Install the oil pressure indicator switch.
Tighten the switch to 16 N.m (12 lb ft).
3. Connect the oil pressure indicator switch electrical connector (2). 4. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - HVAC > Ambient Temperature Sensor /
Switch HVAC > Component Information > Locations
Ambient Temperature Sensor / Switch HVAC: Locations
HVAC Component Views
Below the Front Impact Bar
1 - RF Headlamp 2 - Radiator 3 - Ambient Air Temperature Sensor (DH3/DF5)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - HVAC > Ambient Temperature Sensor /
Switch HVAC > Component Information > Locations > Page 1042
Ambient Temperature Sensor / Switch HVAC: Diagrams
HVAC Connector End Views
Ambient Air Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - HVAC > Evaporator Temperature Sensor /
Switch > Component Information > Locations
Evaporator Temperature Sensor / Switch: Locations
HVAC Component Views
HVAC Module Assembly
1 - Recirculation Actuator 2 - HVAC Blower Motor 3 - Blower Motor Control Processor 4 - Air
Temperature Actuator 5 - Mode Actuator 6 - Evaporator Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - HVAC > Refrigerant Pressure Sensor /
Switch, HVAC > Component Information > Locations
Refrigerant Pressure Sensor / Switch: Locations
HVAC Component Views
Front of Engine
1 - A/C Compressor Clutch 2 - Knock Sensor (KS) 2 3 - Starter 4 - A/C Refrigerant Pressure
Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - HVAC > Refrigerant Pressure Sensor /
Switch, HVAC > Component Information > Locations > Page 1049
Refrigerant Pressure Sensor / Switch: Diagrams
A/C Refrigerant Pressure Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - HVAC > Refrigerant Pressure Sensor /
Switch, HVAC > Component Information > Locations > Page 1050
Refrigerant Pressure Sensor / Switch: Service and Repair
Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
Removal Procedure
1. Disconnect the electrical connector from the refrigerant pressure sensor. 2. Remove the
refrigerant pressure sensor from the compressor hose.
Installation Procedure
Important: Use R-12 refrigerant oil (mineral) to lubricate O-rings. Use of R-134a polyalkylene glycol
(PAG) oil will cause premature corrosion of fitting joints.
1. Lubricate the refrigerant pressure sensor O-ring with mineral oil. Refer to O-Ring Replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - HVAC > Refrigerant Pressure Sensor /
Switch, HVAC > Component Information > Locations > Page 1051
Notice: Refer to Fastener Notice.
2. Hand start the refrigerant pressure sensor to the compressor hose, taking care not to pinch the
O-ring and tighten.
Tighten the pressure sensor to 4 N.m (35 lb in).
3. Install the electrical connector to the refrigerant pressure sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - HVAC > Refrigerant Temperature Sensor
> Component Information > Service and Repair
Refrigerant Temperature Sensor: Service and Repair
Air Conditioning (A/C) Refrigerant Low Temperature Sensor Replacement
Removal Procedure
1. Remove the left side insulator/closeout panel. 2. If equipped with OnStar(R), remove the
communications interface module. Refer to Communication Interface Module Replacement. 3.
Disconnect the temperature sensor connector from the temperature sensor. 4. Twist the
temperature sensor one quarter turn to disengage from the evaporator case assembly. 5. Remove
the temperature sensor from the evaporator case assembly.
Installation Procedure
1. Install the temperature sensor to the evaporator case assembly. 2. Twist the temperature sensor
one quarter turn to engage to the evaporator case assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - HVAC > Refrigerant Temperature Sensor
> Component Information > Service and Repair > Page 1055
3. Install the temperature sensor connector to the temperature sensor. 4. If removed, install the
communications interface module. Refer to Communication Interface Module Replacement. 5.
Install the left side insulator/closeout panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Instrument Panel > Dimmer Switch >
Component Information > Locations
Dimmer Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Instrument Panel > Dimmer Switch >
Component Information > Locations > Page 1060
Dimmer Switch: Service and Repair
INSTRUMENT PANEL DIMMER SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Instrument Panel > Outside Temperature
Display Sensor > Component Information > Service and Repair
Outside Temperature Display Sensor: Service and Repair
Ambient Air Temperature Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Instrument Panel > Parking Brake
Warning Switch > Component Information > Locations
Parking Brake Warning Switch: Locations
Park Brake Assembly
1 - Park Brake Switch 2 - Park Brake Handle 3 - Floor Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Instrument Panel > Parking Brake
Warning Switch > Component Information > Locations > Page 1067
Parking Brake Warning Switch: Diagrams
Park Brake Switch
Park Brake Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Instrument Panel > Parking Brake
Warning Switch > Component Information > Locations > Page 1068
Parking Brake Warning Switch: Service and Repair
Park Brake Warning Lamp Switch Replacement
Removal Procedure
1. Disable the supplemental inflatable restraint (SIR) system. 2. Remove the front floor console. 3.
Disconnect the warning lamp switch electrical connector (2). 4. Remove the warning lamp switch
mounting screw (1). 5. Remove the switch from the park brake lever assembly.
Installation Procedure
1. Align the park brake warning lamp switch locating tab to the locating hole on the park brake lever
assembly. 2. Install the switch to the park brake lever.
Notice: Refer to Fastener Notice .
3. Install the park brake warning lamp switch mounting screw (1).
Tighten the screw to 4 N.m (35 lb in).
4. Connect the park brake warning lamp switch electrical connector (2). 5. Install the front floor
console. 6. Enable the SIR system. 7. Verify correct park brake warning lamp operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Ambient Light
Sensor > Component Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Ambient Light
Sensor > Component Information > Locations > Page 1073
Ambient Light Sensor: Service and Repair
AMBIENT LIGHT SENSOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Brake Light Switch >
Component Information > Diagrams
Brake Light Switch: Diagrams
Brake Pedal Position Sensor
Brake Pedal Position Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Brake Light Switch >
Component Information > Diagrams > Page 1077
Brake Light Switch: Adjustments
STOP LAMP SWITCH ADJUSTMENT
ADJUSTMENT PROCEDURE
1. NOTE: Proper stoplamp switch adjustment is essential. Improper stoplamp switch adjustment
may cause brake drag, heat buildup and excessive
brake lining wear.
Disconnect the electrical connector from the stop lamp switch.
2. Rotate the switch counterclockwise and remove the switch from the switch retainer.
3. IMPORTANT: Do NOT depress the brake pedal assembly during the stop lamp switch
installation. This will cause a drag condition on the
brake.
Install the switch to the bracket by turning and pushing the switch until the switch bottoms on the
brake pedal.
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Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Brake Light Switch >
Component Information > Diagrams > Page 1078
4. Connect the electrical connector to the stop lamp switch. 5. Inspect the stop lamps for proper
operation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Brake Light Switch >
Component Information > Diagrams > Page 1079
Brake Light Switch: Service and Repair
STOP LAMP SWITCH REPLACEMENT
ADJUSTMENT PROCEDURE
1. NOTE: Proper stoplamp switch adjustment is essential. Improper stoplamp switch adjustment
may cause brake drag, heat buildup and excessive
brake lining wear.
Disconnect the electrical connector from the stop lamp switch.
2. Rotate the switch counterclockwise and remove the switch from the switch retainer.
3. IMPORTANT: Do NOT depress the brake pedal assembly during the stop lamp switch
installation. This will cause a drag condition on the
brake.
Install the switch to the bracket by turning and pushing the switch until the switch bottoms on the
brake pedal.
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Component Information > Diagrams > Page 1080
4. Connect the electrical connector to the stop lamp switch. 5. Inspect the stop lamps for proper
operation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Combination Switch
> Component Information > Locations
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Combination Switch
> Component Information > Locations > Page 1084
Turn Signal/Multifunction Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Fog/Driving Lamp
Switch > Component Information > Diagrams
Fog Lamp Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Fog/Driving Lamp
Switch > Component Information > Diagrams > Page 1088
Fog/Driving Lamp Switch: Service and Repair
FOG LAMP SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Hazard Warning
Switch > Component Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Hazard Warning
Switch > Component Information > Locations > Page 1092
Hazard Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Hazard Warning
Switch > Component Information > Locations > Page 1093
Hazard Warning Switch: Service and Repair
HAZARD WARNING SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Headlamp Switch >
Component Information > Diagrams
Headlamp Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Horn Switch >
Component Information > Locations
Steering Wheel Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Turn Signal Switch >
Component Information > Locations
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Turn Signal Switch >
Component Information > Locations > Page 1103
Turn Signal/Multifunction Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Turn Signal Switch >
Component Information > Service and Repair > Multifunction Turn Signal Switch Housing Replacement
Turn Signal Switch: Service and Repair Multifunction Turn Signal Switch Housing Replacement
Multifunction Turn Signal Switch Housing Replacement
Removal Procedure
1. Disconnect the negative battery cable. 2. Disable the SIR system. 3. Remove the steering wheel.
4. Remove the SIR coil. 5. Remove the steering column trim covers. 6. Depress the lock tabs on
the left and right multifunction levers. Remove the multifunction levers.
7. Disconnect the housing electrical connectors.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Turn Signal Switch >
Component Information > Service and Repair > Multifunction Turn Signal Switch Housing Replacement > Page 1106
8. Remove the lock housing bolts. 9. Separate the ignition housing from the multifunction lever
bracket. Slide the bracket from the column.
Installation Procedure
1. Pre-assemble the lock housing and multifunction lever bracket. Hand-tighten the bolts, leaving
approximately 3.2 mm (0.125 in) gap at the bolt
ends.
Important: Ensure that the lock tab fully engages into the column slot.
2. Slide the bracket onto the column. 3. Hand-tighten the lower bolt until snug. 4. Hand-tighten the
upper bolt until snug.
Notice: Refer to Fastener Notice.
5. Tighten the lower bolt.
Tighten the bolt to 8 N.m (71 lb in)
6. Tighten the upper bolt.
Tighten the bolt to 8 N.m (71 lb in)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Turn Signal Switch >
Component Information > Service and Repair > Multifunction Turn Signal Switch Housing Replacement > Page 1107
7. Connect the ignition housing electrical connectors.
Important: Ensure that both locking tabs are seated.
8. Install the multifunction levers. 9. Install the upper and lower shrouds.
10. Install the SIR coil. 11. Install the steering wheel. 12. Enable the SIR system. 13. Connect the
negative battery cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Lighting and Horns > Turn Signal Switch >
Component Information > Service and Repair > Multifunction Turn Signal Switch Housing Replacement > Page 1108
Turn Signal Switch: Service and Repair Turn Signal Multifunction Switch Replacement
Turn Signal Multifunction Switch Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Computers and Control Systems > Accelerator Pedal Position Sensor > Component Information > Locations
Pedal Assemblies
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Computers and Control Systems > Accelerator Pedal Position Sensor > Component Information > Locations >
Page 1114
Accelerator Pedal Position Sensor: Service and Repair
ACCELERATOR PEDAL POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the instrument panel left lower closeout panel.
2. Remove the connector position assurance (CPA) from the accelerator pedal position (APP)
sensor connector. 3. Disconnect the APP sensor harness connector.
4. IMPORTANT: Due to clearance issues, the upper attachment bolt cannot be removed from the
accelerator pedal assembly. Loose then
bolt completely and leave the bolt in the component until the assembly is removed from the vehicle.
Remove the APP assembly attachment bolts.
5. Remove the APP assembly from the vehicle.
INSTALLATION PROCEDURE
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Switches - Computers and Control Systems > Accelerator Pedal Position Sensor > Component Information > Locations >
Page 1115
1. Install the upper attachment bolt into the APP assembly. 2. Install the APP assembly into the
vehicle.
3. NOTE: Refer to Fastener Notice.
Install the remaining attachment bolts into the APP assembly.
Tighten the bolts to 25 N.m (18 lb ft).
4. Connect the APP sensor harness connector. Push the connector in until the lock position is felt,
then pull back to confirm engagement. 5. Install the CPA to the APP sensor harness connector. 6.
Install the instrument panel left lower closeout panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Locations
Air Induction Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram
Information and Instructions
Air Flow Meter/Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Information and Instructions > Page 1121
Electrical Symbols Part 2
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Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 1122
Electrical Symbols Part 3
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Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 1123
Electrical Symbols Part 4
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Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 1124
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 1125
Electrical Symbols Part 6
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Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 1126
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 1127
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 1128
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 1129
Air Flow Meter/Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 1130
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Computers and Control Systems > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 1131
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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Information and Instructions > Page 1132
resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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Information and Instructions > Page 1133
electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Mass Air Flow (MAF) Sensor
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Air Flow Meter/Sensor: Service and Repair
MASS AIRFLOW SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Remove the screws that retain the MAF to the air cleaner assembly. 4. Remove the MAF from
the air cleaner assembly. 5. Remove the MAF to air cleaner assembly seal.
INSTALLATION PROCEDURE
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1. Install the seal to the MAF. 2. Install the MAF to the air cleaner assembly.
3. NOTE: Refer to Fastener Notice.
Install the screws that retain the MAF to the air cleaner assembly.
Tighten the screws to 4 N.m (35 lb in).
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Battery Current Sensor: Diagrams
Engine Electrical Connector End Views
Battery Current Sensor
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Battery Current Sensor: Service and Repair
Battery Current Sensor Replacement
Removal Procedure
1. Remove the negative battery cable. 2. Mark the location of the battery current sensor on the
battery cable with tape for reference during installation. 3. Remove the tape securing the battery
current sensor to the negative battery cable. 4. Mark the location of the negative battery cable clips
and remove the clip from the cable. 5. Squeeze the negative battery cable branches together.
Important: Note the orientation of the battery current sensor prior to removal.
6. Slide the battery current sensor (1) off of the negative battery cable.
Installation Procedure
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1. Squeeze the negative battery cable branches together.
Important: Ensure the battery current sensor is installed in the correct direction and location on the
negative battery cable.
2. Slide the NEW battery current sensor (1) up onto the negative battery cable to the location
previously marked during removal. 3. Wrap electrical tape around the battery current sensor leg in
order to secure the sensor to the negative battery cable. 4. Install the negative battery cable clip to
the cable to the locations previously marked during removal. 5. Install the negative battery cable.
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Top Of The Engine
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Camshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Camshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Information and Instructions > Page 1329
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information and Instructions > Page 1330
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1332
Camshaft Position Sensor: Service and Repair
CAMSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the camshaft position (CMP) sensor electrical connector. 2. Remove the CMP
sensor bolt. 3. Remove the CMP sensor. 4. Inspect the CMP sensor O-rings for wear, cracks, or
leakage if the sensor is being reused. Replace the O-rings if damaged.
INSTALLATION PROCEDURE
1. Lubricate the CMP sensor O-rings with clean engine oil.
2. Install the CMP sensor.
3. NOTE: Refer to Fastener Notice.
Install the CMP sensor bolt.
Tighten the bolt to 10 N.m (89 lb in).
4. Connect the CMP sensor electrical connector.
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Information > Specifications
Temperature Versus Resistance
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Information > Specifications > Page 1336
Rear Of The Engine
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Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Engine coolant must be drained below the level of the engine coolant temperature (ECT) sensor.
Refer to Draining and Filling Cooling System
(Static Fill) Draining and Filling Cooling System (GE 47716 Fill).
2. Disconnect the ECT sensor harness connector. 3. Remove the ECT sensor.
INSTALLATION PROCEDURE
1. IMPORTANT: Tap out sensor mounting hole in engine head to remove any thread sealant
residue. Clean any sealant residue from old sensor if the sensor is going to be reused.
If the sensor is being reused, apply thread sealant GM P/N 12345382 (Canadian P/N 10953489) or
equivalent, to sensor threads.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the ECT sensor.
Tighten the engine coolant temperature sensor to 23 N.m (17 lb ft).
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3. Connect the ECT sensor harness connector. Push in the connector until a click is heard, then
pull back to confirm a positive engagement. 4. Fill engine coolant to proper level. Refer to Draining
and Filling Cooling System (Static Fill) Draining and Filling Cooling System (GE 47716
Fill).
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Rear Of The Engine
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Crankshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Crankshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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Information and Instructions > Page 1417
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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Information and Instructions > Page 1421
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Information and Instructions > Page 1440
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information and Instructions > Page 1441
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Information and Instructions > Page 1442
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Information and Instructions > Page 1443
Crank Sensor
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1444
Crankshaft Position Sensor: Testing and Inspection
CRANKSHAFT POSITION SENSOR SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DIAGNOSTIC FAULT INFORMATION
TYPICAL SCAN TOOL DATA
CIRCUIT/SYSTEM DESCRIPTION
The crankshaft position (CKP) sensor circuits consist of an engine control module (ECM) supplied
5-volt reference circuit, low reference circuit and an output signal circuit. The CKP sensor is an
internally magnetic biased digital output integrated circuit sensing device. The sensor detects
magnetic flux changes of the teeth and slots of a 58-tooth reluctor wheel on the crankshaft. Each
tooth on the reluctor wheel is spaced at 60-tooth spacing, with 2 missing teeth for the reference
gap. The CKP sensor produces an ON/OFF DC voltage of varying frequency, with 58 output pulses
per crankshaft revolution. The frequency of the CKP sensor output depends on the velocity of the
crankshaft. The CKP sensor sends a digital signal, which represents an image of the crankshaft
reluctor wheel, to the ECM as each tooth on the wheel rotates past the CKP sensor. The ECM
uses each CKP signal pulse to determine crankshaft speed and decodes the crankshaft reluctor
wheel reference gap to identify crankshaft position. This information is then used to determine the
optimum ignition and injection points of the engine. The ECM also uses CKP sensor output
information to determine the camshaft relative position to the crankshaft, to control camshaft
phasing, and to detect cylinder misfire.
DIAGNOSTIC AIDS
- Inspect the CKP sensor connector and the ECM connector for corrosion.
- With a DTC set, the engine may crank for an extended period of time at start-up.
CIRCUIT/SYSTEM VERIFICATION
If DTC P0641 or P0651 are set diagnose those DTCs first. 1. With the ignition OFF, inspect the
engine wiring harnesses carrying the CKP sensor circuits for the following conditions:
- Close routing of secondary ignition wires
- Close routing of aftermarket electrical equipment
- Close to solenoids, motors, and relays
- Correct any wire harness routing or component placement conditions, if it is determined to be a
possible source of electrical interference.
2. Start the engine. Using the Live Plot function on the scan tool, select the CMP parameter.
Change the minimum spec to 400 RPM, and the
maximum spec to 4,000 RPM. Select the CKP sensor parameter. Change the minimum spec to
600 RPM, and the maximum spec to 3,300 RPM.
3. Observe the scan tool. 4. Quickly accelerate and release the accelerator pedal several time. Do
not exceed 3,200 RPM. The graphed lines on the Live Plot display should
track together across the screen. If the vehicle passes the Circuit/System Verification test, operate the vehicle within the Conditions
for Running the DTC. You may also operate the vehicle within the conditions that are captured in
the Freeze Frame/Failure Records data list.
CIRCUIT/SYSTEM TESTING
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1445
IMPORTANT: You must complete the Circuit/System Verification before proceeding with
Circuit/System Testing.
1. Disconnect the CKP sensor connector. 2. Test for less than 1 ohm of resistance between low
reference circuit and ground.
- If greater than the specified value, test the low reference circuit for an open/high resistance. If the
circuit tests normal, replace the ECM.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit and ground.
- If less than the specified range, test the 5-volt reference circuit for an open/high resistance or
short to ground. If the circuit tests normal, replace the ECM.
- If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the
circuit tests normal, replace the ECM.
4. Ignition ON, test for 4.8-5.2 volts between the signal circuit and ground.
- If less than the specified range, test signal circuit for an open/high resistance or short to ground. If
the circuit tests normal, replace the ECM.
- If greater than the specified range, test signal circuit for a short to voltage. If the circuit tests
normal, replace the ECM.
5. Ignition ON, using a jumper wire connected to ground, momentarily touch the CKP sensor signal
circuit repeatedly. The CKP Active Counter
parameter should increment. If the CKP Active Counter parameter does not increment, replace the ECM.
6. Ignition OFF, inspect the CKP sensor for looseness and correct installation 7. Touch the jumper
wire to the CKP sensor signal circuit repeatedly at the connector. The CKP Active Counter
parameter should increment.
- If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.
8. Inspect the engine for the following conditions:
- Engine oil for debris
- Crankshaft reluctor wheel for damage
- The timing chain, tensioner, and sprockets for wear or damage
- If debris is found in the engine oil, inspect the internal engine components to determine the cause.
Repair or replace any worn or damaged components.
COMPONENT TESTING
IMPORTANT: You must complete the Circuit/System Testing before proceeding with Component
Testing.
1. Remove the CKP sensor from the engine and inspect the sensor and the O-ring for damage. 2.
Connect the CKP Sensor connector to the CKP Sensor; turn ON the ignition, with the engine OFF.
3. Observe the CKP Active Counter parameter on the scan tool; pass a steel object by the tip of the
sensor repeatedly. The CKP Active Counter
parameter should increment. If the parameter does not increment, replace the CKP sensor.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Crankshaft Position Sensor Replacement for CKP sensor replacement
- Control Module References for ECM replacement, setup, and programming See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures/Verification Tests and Procedures See: Testing and
Inspection/Programming and Relearning
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Crankshaft Position Sensor Replacement
Crankshaft Position Sensor: Service and Repair Crankshaft Position Sensor Replacement
CRANKSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting. 2. Disconnect the crankshaft position (CKP) sensor
electrical connector. 3. Remove the CKP sensor nut (2). 4. Remove the CKP sensor (1) from the
engine. 5. Inspect for wear, cracks, or leakage if the CKP sensor is being reused.
INSTALLATION PROCEDURE
1. Lubricate the O-ring with clean engine oil. Replace the O-rings if damaged.
2. Install the CKP sensor (1) to the block.
3. NOTE: Refer to Fastener Notice.
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Install the CKP sensor nut (1).
Tighten the nut to 11 N.m (97 lb in).
4. Connect the CKP sensor electrical connector. 5. Lower the vehicle.
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Crankshaft Position Sensor: Service and Repair Crankshaft Position System Variation Learn
CRANKSHAFT POSITION SYSTEM VARIATION LEARN
IMPORTANT: The Crankshaft Position (CKP) system variation learn procedure is also required when the
following service procedures have been performed, regardless of whether DTC P0315 is set: An engine replacement
- A engine control module (ECM) replacement
- A crankshaft balancer replacement
- A crankshaft replacement
- A CKP sensor replacement
- Any engine repairs which disturb the crankshaft to CKP sensor relationship.
- The scan tool monitors certain component signals to determine if all the conditions are met to
continue with the CKP System Variation Learn Procedure. The scan tool only displays the condition
that inhibits the procedure. The scan tool monitors the following components: CKP sensors activity-If there is a CKP sensor condition, refer to the applicable DTC that set.
- Camshaft position (CMP) signal activity-If there is a CMP signal condition, refer to the applicable
DTC that set.
- Engine coolant temperature (ECT)-If the engine coolant temperature is not warm enough, idle the
engine until the engine coolant temperature reaches the correct temperature.
1. Install a scan tool. 2. Monitor the ECM for DTCs with a scan tool. If other DTCs are set, except
DTC P0315, refer to Diagnostic Trouble Code (DTC) List - Vehicle
for the applicable DTC that set. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Descriptions
3. With a scan tool, select the CKP System Variation Learn Procedure and perform the following:
1. Observe fuel cut-off for applicable engine. 2. Block drive wheels. 3. Set parking brake. 4. DO
NOT apply brake pedal. 5. Cycle ignition from OFF to ON. 6. Apply and hold brake pedal for the
duration of the procedure. 7. Start and idle engine. 8. Turn the air conditioning (A/C) OFF. 9. The
vehicle must remain in Park or Neutral.
10. IMPORTANT:
- The engine should not accelerate beyond the calibrated fuel cut-off RPM value noted in step 3.1.
Release the throttle immediately if the value is exceeded.
- While the learn procedure is in progress, release the throttle immediately when the engine starts
to decelerate. The engine control is returned to the operator and the engine responds to throttle
position after the learn procedure is complete.
Accelerate to wide open throttle (WOT) and release when the fuel cut-off occurs.
4. The scan tool displays Learn Status: Learned this Ignition. If the scan tool indicates that DTC
P0315 ran and passed, the CKP variation learn
procedure is complete. If the scan tool indicates DTC P0315 failed or did not run, refer to DTC
P0315. If any other DTCs set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the
applicable DTC. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Descriptions
5. Turn OFF the ignition for 30 seconds after the learn procedure is completed successfully in order
to store the CKP system variation values in the
ECM memory.
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Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Computers and Control Systems > Fuel Level Sensor > Component Information > Locations
Fuel Tank Components
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Level Sensor Replacement - Primary
Fuel Level Sensor: Service and Repair Fuel Level Sensor Replacement - Primary
FUEL LEVEL SENSOR REPLACEMENT - PRIMARY
REMOVAL PROCEDURE
1. IMPORTANT: NEW fuel tank module seals are necessary each time the fuel tank module is
serviced. Obtain NEW seals for both the
primary and secondary modules prior to beginning this service procedure.
IMPORTANT: There are 2 fuel level sender unit and float assemblies in the fuel tank. There is 1
located on each fuel pump module. The fuel level sender unit and float is NOT the same for each of
the fuel pump modules.
Remove the fuel tank.
2. Remove the fuel pump module. 3. Disconnect the fuel level sender unit and float electrical
connector from the underside of the top of the pump module. 4. Release the retaining tabs (1, 2)
and remove the level sensor by sliding up.
INSTALLATION PROCEDURE
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1. Install the fuel level sender unit and float onto the fuel pump module. Make sure that the sender
cap snaps into place (1, 2). 2. Connect the fuel level sender unit and float electrical connector. 3.
Install the fuel pump module into the fuel tank. 4. Install the fuel tank.
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Fuel Level Sensor: Service and Repair Fuel Level Sensor Replacement - Secondary
FUEL LEVEL SENSOR REPLACEMENT - SECONDARY
REMOVAL PROCEDURE
1. IMPORTANT: A NEW fuel tank module seal is necessary each time the fuel tank module is
serviced. Obtain a NEW seal prior to
beginning this service procedure.
IMPORTANT: There are 2 fuel level sender unit and float assemblies in the fuel tank. There is 1
located on each fuel pump module. The fuel level sender unit and float is NOT the same for each of
the fuel pump modules.
Remove the fuel tank. 2. Remove the fuel pump module. 3. Disconnect the fuel level sender unit
and the float electrical connector. 4. Release the retaining tabs and remove the level sensor by
sliding up.
INSTALLATION PROCEDURE
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1. Install the fuel level sender unit and float onto the fuel pump module. Make sure that the sender
cap snaps into place. 2. Connect the fuel level sender unit and the float electrical connector. 3.
Install the fuel pump module into the fuel tank. 4. Install the fuel tank.
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Fuel Tank Pressure Sensor: Service and Repair
FUEL TANK PRESSURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the fuel tank
2. Disconnect the fuel pump module harness electrical connector from the fuel tank pressure
sensor.
3. Position 2 flat-bladed screwdrivers, one on each side of the sensor, near the vacuum port. 4.
Carefully use the screwdrivers to lift and release the sensor from the fuel pump module.
INSTALLATION PROCEDURE
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1. Install the fuel tank pressure sensor to the fuel pump module assembly. Ensure that the sensor
grommet is fully seated to the pump module.
2. Connect the pump module electrical connector to the fuel tank pressure sensor. 3. Install the fuel
tank.
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Air Induction Components
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Knock Sensor: Locations
Front Of Engine
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Front Of The Engine
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Rear Of The Engine
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Knock Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Knock Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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and Instructions > Page 1521
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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and Instructions > Page 1567
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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and Instructions > Page 1569
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Switches - Computers and Control Systems > Knock Sensor > Component Information > Diagrams > Diagram Information
and Instructions > Page 1570
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Switches - Computers and Control Systems > Knock Sensor > Component Information > Diagrams > Diagram Information
and Instructions > Page 1571
Knock Sensor: Connector Views
Knock Sensor 1
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and Instructions > Page 1572
Knock Sensor 2
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Sensor Replacement - Bank 1
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 1
KNOCK SENSOR REPLACEMENT - BANK 1
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. If equipped with front wheel drive
(FWD), disconnect the engine wiring harness electrical connector (1) from the knock sensor.
3. If equipped with all wheel drive (AWD), disconnect the engine wiring harness electrical connector
(1) from the knock sensor.
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Sensor Replacement - Bank 1 > Page 1575
4. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
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Sensor Replacement - Bank 1 > Page 1576
2. If equipped with AWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor.
3. If equipped with FWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor. 4. Lower the vehicle.
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Sensor Replacement - Bank 1 > Page 1577
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 2
KNOCK SENSOR REPLACEMENT - BANK 2
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Disconnect the engine wiring harness
electrical connector (2) from the knock sensor.
3. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
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Sensor Replacement - Bank 1 > Page 1578
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
2. Connect the engine wiring harness electrical connector (2) to the knock sensor. 3. Lower the
vehicle.
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Switches - Computers and Control Systems > Manifold Pressure/Vacuum Sensor > Component Information > Locations
Rear Of The Engine
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Page 1582
Manifold Pressure/Vacuum Sensor: Service and Repair
MANIFOLD ABSOLUTE PRESSURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the manifold absolute pressure (MAP) sensor electrical connector.
2. Remove the MAP sensor retaining bolt (3) and bracket (2). 3. Remove the MAP sensor (1) and
the MAP sensor port seal if it is still retained in the intake manifold.
INSTALLATION PROCEDURE
1. Install the MAP sensor (1) to the intake manifold.
2. NOTE: Refer to Fastener Notice.
Install the MAP sensor retaining bracket (2) and bolt (3).
Tighten the bolt to 10 N.m (89 lb in).
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Page 1583
3. Connect the MAP sensor electrical connector.
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Oil Pressure Sensor: Service and Repair
Engine Oil Pressure Sensor and/or Switch Replacement
Removal Procedure
1. Raise and support the vehicle.
2. Disconnect the oil pressure indicator switch electrical connector (2).
3. Remove the oil pressure indicator switch from the engine block.
Installation Procedure
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1. Apply sealer to the oil pressure indicator switch threads.
Notice: Refer to Component Fastener Tightening Notice.
2. Install the oil pressure indicator switch.
Tighten the switch to 16 N.m (12 lb ft).
3. Connect the oil pressure indicator switch electrical connector (2). 4. Lower the vehicle.
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Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Locations
Oxygen Sensors
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Oxygen Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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and Instructions > Page 1594
Electrical Symbols Part 3
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and Instructions > Page 1595
Electrical Symbols Part 4
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and Instructions > Page 1596
Electrical Symbols Part 5
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Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Diagrams > Diagram Information
and Instructions > Page 1597
Electrical Symbols Part 6
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Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Diagrams > Diagram Information
and Instructions > Page 1598
Electrical Symbols Part 7
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and Instructions > Page 1599
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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and Instructions > Page 1601
Oxygen Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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and Instructions > Page 1602
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and Instructions > Page 1603
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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and Instructions > Page 1642
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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and Instructions > Page 1644
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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and Instructions > Page 1645
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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and Instructions > Page 1646
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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and Instructions > Page 1648
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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and Instructions > Page 1651
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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and Instructions > Page 1652
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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and Instructions > Page 1653
2. Slide the lever lock forward while pressing down on the lever lock release tab.
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and Instructions > Page 1654
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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and Instructions > Page 1655
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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and Instructions > Page 1659
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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and Instructions > Page 1660
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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and Instructions > Page 1663
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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and Instructions > Page 1665
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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and Instructions > Page 1666
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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and Instructions > Page 1680
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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and Instructions > Page 1683
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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and Instructions > Page 1686
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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and Instructions > Page 1690
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and Instructions > Page 1691
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and Instructions > Page 1692
Oxygen Sensor: Connector Views
Heated Oxygen Sensor Bank 1 Sensor 1
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Heated Oxygen Sensor Bank 1 Sensor 2
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Oxygen and Oxygen Sensor Notice
Oxygen Sensor: Service Precautions Heated Oxygen and Oxygen Sensor Notice
Heated Oxygen and Oxygen Sensor Notice
Notice: Do not remove the pigtail from either the heated oxygen sensor (HO2S) or the oxygen
sensor (O2S). Removing the pigtail or the connector will affect sensor operation.
Handle the oxygen sensor carefully. Do not drop the HO2S. Keep the in-line electrical connector
and the louvered end free of grease, dirt, or other contaminants. Do not use cleaning solvents of
any type.
Do not repair the wiring, connector or terminals. Replace the oxygen sensor if the pigtail wiring,
connector, or terminal is damaged.
This external clean air reference is obtained by way of the oxygen sensor signal and heater wires.
Any attempt to repair the wires, connectors, or terminals could result in the obstruction of the air
reference and degraded sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor:
* Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors.
These materials may get into the sensor causing poor performance.
* Do not damage the sensor pigtail and harness wires in such a way that the wires inside are
exposed. This could provide a path for foreign materials to enter the sensor and cause
performance problems.
* Ensure the sensor or vehicle lead wires are not bent sharply or kinked. Sharp bends or kinks
could block the reference air path through the lead wire.
* Do not remove or defeat the oxygen sensor ground wire, where applicable. Vehicles that utilize
the ground wired sensor may rely on this ground as the only ground contact to the sensor.
Removal of the ground wire will cause poor engine performance.
* Ensure that the peripheral seal remains intact on the vehicle harness connector in order to
prevent damage due to water intrusion. The engine harness may be repaired using Packard's
Crimp and Splice Seals Terminal Repair Kit. Under no circumstances should repairs be soldered
since this could result in the air reference being obstructed.
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Oxygen and Oxygen Sensor Notice > Page 1696
Oxygen Sensor: Service Precautions Silicon Contamination of Heated Oxygen Sensors Notice
Silicon Contamination of Heated Oxygen Sensors Notice
Notice: Contamination of the oxygen sensor can result from the use of an inappropriate RTV
sealant (not oxygen sensor safe) or excessive engine coolant or oil consumption. Remove the
HO2S and visually inspect the portion of the sensor exposed to the exhaust stream in order to
check for contamination. If contaminated, the portion of the sensor exposed to the exhaust stream
will have a white powdery coating. Silicon contamination causes a high but false HO2S signal
voltage (rich exhaust indication). The control module will then reduce the amount of fuel delivered
to the engine, causing a severe driveability problem. Eliminate the source of contamination before
replacing the oxygen sensor.
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Oxygen and Oxygen Sensor Notice > Page 1697
Oxygen Sensor: Service Precautions Heated Oxygen Sensor Resistance Learn Reset Notice
Heated Oxygen Sensor Resistance Learn Reset Notice
Notice: When replacing the HO2S perform the following:
* A code clear with a scan tool, regardless of whether or not a DTC is set
* HO2S heater resistance learn reset with a scan tool, where available
Perform the above in order to reset the HO2S resistance learned value and avoid possible HO2S
failure.
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Oxygen Sensor 1 Replacement
Oxygen Sensor: Service and Repair Heated Oxygen Sensor 1 Replacement
HEATED OXYGEN SENSOR 1 REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the HO2S 1 harness connector. 2. Remove the HO2S 1 from the exhaust manifold.
INSTALLATION PROCEDURE
1. NOTE: Silicone based products will contaminate the HO2S. Use only a nickel based anti-seize
compound that does not contain silicone.
Apply a small amount of anti-seize compound to the threads of the HO2S 2.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the HO2S 1 to the exhaust manifold.
Tighten the HO2S 1 to 42 N.m (31 lb ft).
3. Connect the HO2S 1 harness connector. Push in the connector until a click is heard and pull
back to confirm a positive engagement.
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Oxygen Sensor 1 Replacement > Page 1700
Oxygen Sensor: Service and Repair Heated Oxygen Sensor 2 Replacement
HEATED OXYGEN SENSOR 2 REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Disconnect the HO2S 2 harness connector (3).
3. IMPORTANT: Silicone based products will contaminate the HO2S. DO NOT use products
containing silicone on or near the HO2S.
Use a liquid penetrate before removing the sensor.
4. Remove the HO2S 2 (2) from the exhaust pipe.
INSTALLATION PROCEDURE
1. NOTE: Silicone based products will contaminate the HO2S. Use only a nickel based anti-seize
compound that does not contain silicone.
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Apply a small amount of anti-seize compound to the threads of the HO2S 2.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the HO2S 2 (2).
Tighten the HO2S 2 to 42 N.m (31 lb ft).
3. Connect the HO2S 2 harness connector (3). Push in the connector until a click is heard, then pull
back to confirm a positive engagement. 4. Ensure the HO2S 2 harness pigtail connector is secure
to the chassis.
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Information and Instructions
Throttle Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Throttle Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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Information and Instructions > Page 1719
cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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Information and Instructions > Page 1765
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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Information and Instructions > Page 1783
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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Information and Instructions > Page 1791
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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Information and Instructions > Page 1792
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 1793
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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Information and Instructions > Page 1794
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Information and Instructions > Page 1795
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Switches - Computers and Control Systems > Throttle Position Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 1796
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 1797
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Information and Instructions > Page 1799
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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Information and Instructions > Page 1801
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information and Instructions > Page 1803
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Information and Instructions > Page 1804
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Locations
Transmission Position Switch/Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
75 - Park/Neutral Position Switch
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Transmission Position Switch/Sensor: Adjustments
Transaxle Range Switch Adjustment
Tools Required
* J 36346 Fascia Retainer Remover
* J 45404 Transmission Indicator Alignment Tool
1. Remove the battery tray. 2. Shift the transaxle into neutral (N) position.
3. Using the J 36346, remove the shift control cable from the transaxle range switch lever.
4. Loosen the transaxle range switch bolt (2) and stud (1).
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5. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
on the J 45404.
Notice: Refer to Fastener Notice.
6. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
7. Remove the J 45404 from the manual shaft. 8. Install the shift control cable to the transaxle
range switch lever. 9. Install the battery tray.
10. After adjusting the transaxle range switch, verify the engine only starts in park (P) or neutral
(N). If the engine starts in any other position, readjust
the switch.
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Service and Repair > Transaxle Range Switch Lever Replacement
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Lever
Replacement
Transaxle Range Switch Lever Replacement
Tools Required
J 36346 Fascia Retainer Remover
Removal Procedure
1. Remove the battery tray.
2. Using the J 36346, disconnect the shift control cable from the transaxle range switch lever.
3. Remove the transaxle range switch lever nut and lever.
Installation Procedure
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Notice: Refer to Fastener Notice.
1. Install the transaxle range switch lever and lever nut.
Tighten the nut to 16 N.m (12 lb ft).
2. Install the shift control cable end fitting onto the ball stud of the transaxle range switch lever. An
audible snap will be heard when properly
installed.
3. Install the battery tray.
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Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Replacement
Transaxle Range Switch Replacement
Tools Required
J 45404 Transmission Indicator Alignment Tool
Removal Procedure
1. Remove the battery tray.
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
switch.
2. Apply the parking brake and place control shift lever in neutral (N). 3. Remove the transaxle
range switch lever.
4. Disconnect the electrical connectors (3, 5) from the transaxle range switch.
5. Using a screwdriver, bend the lockwasher tabs down away from the manual shaft nut.
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6. Remove the nut, lock tab washer, and flat washer.
7. Remove the transaxle range switch bolt (2), stud (1), and flat washers. 8. Remove the transaxle
range switch (3).
Installation Procedure
1. Install the transaxle range switch (3) to the manual shaft lever. 2. Install the washer stud (1) and
the bolt (2). Hand tighten ONLY at this time.
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Notice: Refer to Fastener Notice.
3. Install the flat washer, lock tab washer, and nut.
Tighten the nut to 7 N.m (62 lb in).
4. Ensure the manual shaft is in neutral (N) position.
5. Bend the lock washer tabs up to secure the nut.
6. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
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on the J 45404.
7. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
8. Remove the J 45404 from the manual shaft.
9. Connect the electrical connectors (3, 5) to the transaxle range switch.
10. Install the transaxle range switch lever. 11. Install the battery tray. 12. After installing and
adjusting the switch, verify the engine only starts in park (P) or neutral (N). If the engine starts in
any other position, readjust
the switch. Refer to Transaxle Range Switch Adjustment.
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Switches - Fuel Delivery and Air Induction > Accelerator Pedal Position Sensor > Component Information > Locations
Pedal Assemblies
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Page 1821
Accelerator Pedal Position Sensor: Service and Repair
ACCELERATOR PEDAL POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the instrument panel left lower closeout panel.
2. Remove the connector position assurance (CPA) from the accelerator pedal position (APP)
sensor connector. 3. Disconnect the APP sensor harness connector.
4. IMPORTANT: Due to clearance issues, the upper attachment bolt cannot be removed from the
accelerator pedal assembly. Loose then
bolt completely and leave the bolt in the component until the assembly is removed from the vehicle.
Remove the APP assembly attachment bolts.
5. Remove the APP assembly from the vehicle.
INSTALLATION PROCEDURE
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Page 1822
1. Install the upper attachment bolt into the APP assembly. 2. Install the APP assembly into the
vehicle.
3. NOTE: Refer to Fastener Notice.
Install the remaining attachment bolts into the APP assembly.
Tighten the bolts to 25 N.m (18 lb ft).
4. Connect the APP sensor harness connector. Push the connector in until the lock position is felt,
then pull back to confirm engagement. 5. Install the CPA to the APP sensor harness connector. 6.
Install the instrument panel left lower closeout panel.
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Air Induction Components
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Air Flow Meter/Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Air Flow Meter/Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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Information and Instructions > Page 1886
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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Information and Instructions > Page 1914
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information and Instructions > Page 1925
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Information and Instructions > Page 1926
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Information and Instructions > Page 1927
Mass Air Flow (MAF) Sensor
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Air Flow Meter/Sensor: Service and Repair
MASS AIRFLOW SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Remove the screws that retain the MAF to the air cleaner assembly. 4. Remove the MAF from
the air cleaner assembly. 5. Remove the MAF to air cleaner assembly seal.
INSTALLATION PROCEDURE
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1. Install the seal to the MAF. 2. Install the MAF to the air cleaner assembly.
3. NOTE: Refer to Fastener Notice.
Install the screws that retain the MAF to the air cleaner assembly.
Tighten the screws to 4 N.m (35 lb in).
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Throttle Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Throttle Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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Information and Instructions > Page 1976
3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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Information and Instructions > Page 1977
1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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Information and Instructions > Page 1978
3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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Information and Instructions > Page 1979
4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Information and Instructions > Page 1980
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Information and Instructions > Page 1981
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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Information and Instructions > Page 1982
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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Information and Instructions > Page 1983
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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Information and Instructions > Page 1984
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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Information and Instructions > Page 1985
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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Information and Instructions > Page 1986
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Information and Instructions > Page 1987
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Information and Instructions > Page 1988
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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Information and Instructions > Page 1989
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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Information and Instructions > Page 1990
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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Information and Instructions > Page 1991
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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Information and Instructions > Page 1992
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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Information and Instructions > Page 1993
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Information and Instructions > Page 1994
2. Slide the lever lock forward while pressing down on the lever lock release tab.
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Information and Instructions > Page 1995
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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Information and Instructions > Page 1996
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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Information and Instructions > Page 1997
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Information and Instructions > Page 1998
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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Information and Instructions > Page 1999
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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Information and Instructions > Page 2000
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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Information and Instructions > Page 2001
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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Information and Instructions > Page 2003
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Top Of The Engine
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Camshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Camshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Instructions > Page 2092
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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Instructions > Page 2095
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Instructions > Page 2099
2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Camshaft Position Sensor: Service and Repair
CAMSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the camshaft position (CMP) sensor electrical connector. 2. Remove the CMP
sensor bolt. 3. Remove the CMP sensor. 4. Inspect the CMP sensor O-rings for wear, cracks, or
leakage if the sensor is being reused. Replace the O-rings if damaged.
INSTALLATION PROCEDURE
1. Lubricate the CMP sensor O-rings with clean engine oil.
2. Install the CMP sensor.
3. NOTE: Refer to Fastener Notice.
Install the CMP sensor bolt.
Tighten the bolt to 10 N.m (89 lb in).
4. Connect the CMP sensor electrical connector.
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Rear Of The Engine
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Crankshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Crankshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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Instructions > Page 2183
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Instructions > Page 2237
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Instructions > Page 2240
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Instructions > Page 2243
Crank Sensor
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Crankshaft Position Sensor: Testing and Inspection
CRANKSHAFT POSITION SENSOR SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DIAGNOSTIC FAULT INFORMATION
TYPICAL SCAN TOOL DATA
CIRCUIT/SYSTEM DESCRIPTION
The crankshaft position (CKP) sensor circuits consist of an engine control module (ECM) supplied
5-volt reference circuit, low reference circuit and an output signal circuit. The CKP sensor is an
internally magnetic biased digital output integrated circuit sensing device. The sensor detects
magnetic flux changes of the teeth and slots of a 58-tooth reluctor wheel on the crankshaft. Each
tooth on the reluctor wheel is spaced at 60-tooth spacing, with 2 missing teeth for the reference
gap. The CKP sensor produces an ON/OFF DC voltage of varying frequency, with 58 output pulses
per crankshaft revolution. The frequency of the CKP sensor output depends on the velocity of the
crankshaft. The CKP sensor sends a digital signal, which represents an image of the crankshaft
reluctor wheel, to the ECM as each tooth on the wheel rotates past the CKP sensor. The ECM
uses each CKP signal pulse to determine crankshaft speed and decodes the crankshaft reluctor
wheel reference gap to identify crankshaft position. This information is then used to determine the
optimum ignition and injection points of the engine. The ECM also uses CKP sensor output
information to determine the camshaft relative position to the crankshaft, to control camshaft
phasing, and to detect cylinder misfire.
DIAGNOSTIC AIDS
- Inspect the CKP sensor connector and the ECM connector for corrosion.
- With a DTC set, the engine may crank for an extended period of time at start-up.
CIRCUIT/SYSTEM VERIFICATION
If DTC P0641 or P0651 are set diagnose those DTCs first. 1. With the ignition OFF, inspect the
engine wiring harnesses carrying the CKP sensor circuits for the following conditions:
- Close routing of secondary ignition wires
- Close routing of aftermarket electrical equipment
- Close to solenoids, motors, and relays
- Correct any wire harness routing or component placement conditions, if it is determined to be a
possible source of electrical interference.
2. Start the engine. Using the Live Plot function on the scan tool, select the CMP parameter.
Change the minimum spec to 400 RPM, and the
maximum spec to 4,000 RPM. Select the CKP sensor parameter. Change the minimum spec to
600 RPM, and the maximum spec to 3,300 RPM.
3. Observe the scan tool. 4. Quickly accelerate and release the accelerator pedal several time. Do
not exceed 3,200 RPM. The graphed lines on the Live Plot display should
track together across the screen. If the vehicle passes the Circuit/System Verification test, operate the vehicle within the Conditions
for Running the DTC. You may also operate the vehicle within the conditions that are captured in
the Freeze Frame/Failure Records data list.
CIRCUIT/SYSTEM TESTING
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IMPORTANT: You must complete the Circuit/System Verification before proceeding with
Circuit/System Testing.
1. Disconnect the CKP sensor connector. 2. Test for less than 1 ohm of resistance between low
reference circuit and ground.
- If greater than the specified value, test the low reference circuit for an open/high resistance. If the
circuit tests normal, replace the ECM.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit and ground.
- If less than the specified range, test the 5-volt reference circuit for an open/high resistance or
short to ground. If the circuit tests normal, replace the ECM.
- If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the
circuit tests normal, replace the ECM.
4. Ignition ON, test for 4.8-5.2 volts between the signal circuit and ground.
- If less than the specified range, test signal circuit for an open/high resistance or short to ground. If
the circuit tests normal, replace the ECM.
- If greater than the specified range, test signal circuit for a short to voltage. If the circuit tests
normal, replace the ECM.
5. Ignition ON, using a jumper wire connected to ground, momentarily touch the CKP sensor signal
circuit repeatedly. The CKP Active Counter
parameter should increment. If the CKP Active Counter parameter does not increment, replace the ECM.
6. Ignition OFF, inspect the CKP sensor for looseness and correct installation 7. Touch the jumper
wire to the CKP sensor signal circuit repeatedly at the connector. The CKP Active Counter
parameter should increment.
- If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.
8. Inspect the engine for the following conditions:
- Engine oil for debris
- Crankshaft reluctor wheel for damage
- The timing chain, tensioner, and sprockets for wear or damage
- If debris is found in the engine oil, inspect the internal engine components to determine the cause.
Repair or replace any worn or damaged components.
COMPONENT TESTING
IMPORTANT: You must complete the Circuit/System Testing before proceeding with Component
Testing.
1. Remove the CKP sensor from the engine and inspect the sensor and the O-ring for damage. 2.
Connect the CKP Sensor connector to the CKP Sensor; turn ON the ignition, with the engine OFF.
3. Observe the CKP Active Counter parameter on the scan tool; pass a steel object by the tip of the
sensor repeatedly. The CKP Active Counter
parameter should increment. -
If the parameter does not increment, replace the CKP sensor.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Crankshaft Position Sensor Replacement for CKP sensor replacement
- Control Module References for ECM replacement, setup, and programming See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures/Verification Tests and Procedures See: Testing and
Inspection/Programming and Relearning
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Position Sensor Replacement
Crankshaft Position Sensor: Service and Repair Crankshaft Position Sensor Replacement
CRANKSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting. 2. Disconnect the crankshaft position (CKP) sensor
electrical connector. 3. Remove the CKP sensor nut (2). 4. Remove the CKP sensor (1) from the
engine. 5. Inspect for wear, cracks, or leakage if the CKP sensor is being reused.
INSTALLATION PROCEDURE
1. Lubricate the O-ring with clean engine oil. Replace the O-rings if damaged.
2. Install the CKP sensor (1) to the block.
3. NOTE: Refer to Fastener Notice.
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Install the CKP sensor nut (1).
Tighten the nut to 11 N.m (97 lb in).
4. Connect the CKP sensor electrical connector. 5. Lower the vehicle.
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Crankshaft Position Sensor: Service and Repair Crankshaft Position System Variation Learn
CRANKSHAFT POSITION SYSTEM VARIATION LEARN
IMPORTANT: The Crankshaft Position (CKP) system variation learn procedure is also required when the
following service procedures have been performed, regardless of whether DTC P0315 is set: An engine replacement
- A engine control module (ECM) replacement
- A crankshaft balancer replacement
- A crankshaft replacement
- A CKP sensor replacement
- Any engine repairs which disturb the crankshaft to CKP sensor relationship.
- The scan tool monitors certain component signals to determine if all the conditions are met to
continue with the CKP System Variation Learn Procedure. The scan tool only displays the condition
that inhibits the procedure. The scan tool monitors the following components: CKP sensors activity-If there is a CKP sensor condition, refer to the applicable DTC that set.
- Camshaft position (CMP) signal activity-If there is a CMP signal condition, refer to the applicable
DTC that set.
- Engine coolant temperature (ECT)-If the engine coolant temperature is not warm enough, idle the
engine until the engine coolant temperature reaches the correct temperature.
1. Install a scan tool. 2. Monitor the ECM for DTCs with a scan tool. If other DTCs are set, except
DTC P0315, refer to Diagnostic Trouble Code (DTC) List - Vehicle
for the applicable DTC that set. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Descriptions
3. With a scan tool, select the CKP System Variation Learn Procedure and perform the following:
1. Observe fuel cut-off for applicable engine. 2. Block drive wheels. 3. Set parking brake. 4. DO
NOT apply brake pedal. 5. Cycle ignition from OFF to ON. 6. Apply and hold brake pedal for the
duration of the procedure. 7. Start and idle engine. 8. Turn the air conditioning (A/C) OFF. 9. The
vehicle must remain in Park or Neutral.
10. IMPORTANT:
- The engine should not accelerate beyond the calibrated fuel cut-off RPM value noted in step 3.1.
Release the throttle immediately if the value is exceeded.
- While the learn procedure is in progress, release the throttle immediately when the engine starts
to decelerate. The engine control is returned to the operator and the engine responds to throttle
position after the learn procedure is complete.
Accelerate to wide open throttle (WOT) and release when the fuel cut-off occurs.
4. The scan tool displays Learn Status: Learned this Ignition. If the scan tool indicates that DTC
P0315 ran and passed, the CKP variation learn
procedure is complete. If the scan tool indicates DTC P0315 failed or did not run, refer to DTC
P0315. If any other DTCs set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the
applicable DTC. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Descriptions
5. Turn OFF the ignition for 30 seconds after the learn procedure is completed successfully in order
to store the CKP system variation values in the
ECM memory.
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Switches - Ignition System > Ignition Switch > Ignition Switch Lock Cylinder > Component Information > Technical Service
Bulletins > Customer Interest for Ignition Switch Lock Cylinder: > 09-02-35-005C > Feb > 11 > Ignition - Key Difficult To
Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: Customer Interest Ignition - Key Difficult To Remove, Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
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Bulletins > All Technical Service Bulletins for Ignition Switch Lock Cylinder: > 09-02-35-005C > Feb > 11 > Ignition - Key
Difficult To Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: All Technical Service Bulletins Ignition - Key Difficult To Remove,
Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
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Bulletins > Page 2264
Ignition Switch Lock Cylinder: Service and Repair
Key and Lock Cylinder Coding
Use Instruction Sheet Supplied
For the lock cylinder coding procedure, refer to the instruction sheet supplied in the lock cylinder
kit.
For key cutting information, refer to the instructions provided from the manufacturer of the key
cutting equipment used.
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Knock Sensor: Locations
Front Of Engine
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Front Of The Engine
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Rear Of The Engine
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Knock Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Page 2280
Knock Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 2361
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
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Page 2362
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Page 2363
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
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Page 2364
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Page 2365
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 2366
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 2367
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Page 2368
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 2369
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 2370
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 2371
Knock Sensor: Connector Views
Knock Sensor 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 2372
Knock Sensor 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement Bank 1
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 1
KNOCK SENSOR REPLACEMENT - BANK 1
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. If equipped with front wheel drive
(FWD), disconnect the engine wiring harness electrical connector (1) from the knock sensor.
3. If equipped with all wheel drive (AWD), disconnect the engine wiring harness electrical connector
(1) from the knock sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement Bank 1 > Page 2375
4. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement Bank 1 > Page 2376
2. If equipped with AWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor.
3. If equipped with FWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor. 4. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement Bank 1 > Page 2377
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 2
KNOCK SENSOR REPLACEMENT - BANK 2
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Disconnect the engine wiring harness
electrical connector (2) from the knock sensor.
3. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement Bank 1 > Page 2378
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
2. Connect the engine wiring harness electrical connector (2) to the knock sensor. 3. Lower the
vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Locations
Impact Sensor: Locations
SIR Component Views
Near the Hood Latch
1 - Inflatable Restraint Front End Sensor 2 - Radiator Core Support 3 - Cooling Fan - Right 4 Cooling Fan - Left
Center of the Floor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Locations > Page 2383
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Locations > Page 2384
Impact Sensor: Diagrams
SIR Connector End Views
Inflatable Restraint Front End Sensor
Inflatable Restraint Side Impact Sensor (SIS) - Left
Inflatable Restraint Side Impact Sensor (SIS) - Right
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Locations > Page 2385
Inflatable Restraint Vehicle Rollover Sensor (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Service and Repair > Inflatable Restraint Front End Sensor Replacement
Impact Sensor: Service and Repair Inflatable Restraint Front End Sensor Replacement
Inflatable Restraint Front End Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Service and Repair > Inflatable Restraint Front End Sensor Replacement > Page 2388
Impact Sensor: Service and Repair Inflatable Restraint Vehicle Rollover Sensor Replacement
Inflatable Restraint Vehicle Rollover Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Service and Repair > Inflatable Restraint Front End Sensor Replacement > Page 2389
Impact Sensor: Service and Repair Inflatable Restraint Side Impact Sensor Replacement
Inflatable Restraint Side Impact Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Service and Repair > Inflatable Restraint Front End Sensor Replacement > Page 2390
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Belt Buckle
Switch > Component Information > Locations
Seat Belt Buckle Switch: Locations
Seat Belt Component Views
Driver Seat
1 - Seat Belt Switch - Driver 2 - Seat Horizontal Motor - Driver (AG1) 3 - Heated Seat Element Driver Cushion (KA1) 4 - Heated Seat Element - Driver Back (KA1) 5 - Seat Adjuster Switch Driver (AG1) 6 - Seat Rear Vertical Motor - Driver (AG1) 7 - Seat Front Vertical Motor - Driver
(AG1)
Passenger Seat (Manual)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Belt Buckle
Switch > Component Information > Locations > Page 2394
1 - Heated Seat Element - Front Passenger Cushion (KA1) 2 - Seat Frame 3 - Heated Seat
Element - Front Passenger Back (KA1) 4 - Seat Belt Switch - Passenger 5 - Inflatable Restraint
Passenger Presence (PPS) Module 6 - Heated Seat Control Module - Passenger (KA1) 7 Inflatable Restraint Passenger Presence (PPS) Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Belt Buckle
Switch > Component Information > Locations > Page 2395
Seat Belt Buckle Switch: Diagrams
Seat Belt Connector End Views
Seat Belt Switch - Left
A/T Shift Lock Control Solenoid
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant
Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant
Sensor Calibration Error > Page 2404
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant
Sensor Calibration Error > Page 2405
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant
Sensor Calibration Error > Page 2406
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant
Sensor Calibration Error > Page 2407
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant
Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant
Sensor Calibration Update > Page 2412
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant
Sensor Calibration Update > Page 2413
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant
Sensor Calibration Update > Page 2414
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > Recalls: > NHTSA07V344000 > Aug > 07 > Recall
07V344000: Seat Occupant System Reprogramming
Seat Occupant Sensor: Recalls Recall 07V344000: Seat Occupant System Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor:
> 06-08-50-009F > Dec > 10 > Restraints - Passenger Presence System Information
Seat Occupant Sensor: All Technical Service Bulletins Restraints - Passenger Presence System
Information
INFORMATION
Bulletin No.: 06-08-50-009F
Date: December 23, 2010
Subject: Information on Passenger Presence Sensing System (PPS or PSS) Concerns With
Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices
Models:
2011 and Prior GM Passenger Cars and Trucks Equipped with Passenger Presence Sensing
System
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 06-08-50-009E (Section 08 - Body and Accessories).
Concerns About Safety and Alterations to the Front Passenger Seat
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE THE
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT AS RELEASED BY GM FOR THAT
VEHICLE. DO NOT ALTER THE SEAT COVERS OR SEAT-RELATED EQUIPMENT. ANY
ALTERATIONS TO SEAT COVERS OR GM ACCESSORIES DEFEATS THE INTENDED DESIGN
OF THE SYSTEM. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF
SUCH IMPROPER SEAT ALTERATIONS, INCLUDING ANY WARRANTY REPAIRS INCURRED.
The front passenger seat in many GM vehicles is equipped with a passenger sensing system that
will turn off the right front passenger's frontal airbag under certain conditions, such as when an
infant or child seat is present. In some vehicles, the passenger sensing system will also turn off the
right front passenger's seat mounted side impact airbag. For the system to function properly,
sensors are used in the seat to detect the presence of a properly-seated occupant. The passenger
sensing system may not operate properly if the original seat trim is replaced (1) by non-GM covers,
upholstery or trim, or (2) by GM covers, upholstery or trim designed for a different vehicle or (3) by
GM covers, upholstery or trim that has been altered by a trim shop, or (4) if any object, such as an
aftermarket seat heater or a comfort enhancing pad or device is installed under the seat fabric or
between the occupant and the seat fabric.
Aftermarket Seat Heaters, Custom Upholstery, and Comfort Enhancing Pads or Devices
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE ONLY
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT RELEASED AS GM
ACCESSORIES FOR THAT VEHICLE. DO NOT USE ANY OTHER TYPE OF SEAT COVERS OR
SEAT-RELATED EQUIPMENT, OR GM ACCESSORIES RELEASED FOR OTHER VEHICLE
APPLICATIONS. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF SUCH
IMPROPER SEAT ACCESSORIES, INCLUDING ANY WARRANTY REPAIRS MADE
NECESSARY BY SUCH USE.
Many types of aftermarket accessories are available to customers, upfitting shops, and dealers.
Some of these devices sit on top of, or are Velcro(R) strapped to the seat while others such as seat
heaters are installed under the seat fabric. Additionally, seat covers made of leather or other
materials may have different padding thickness installed that could prevent the Passenger Sensing
System from functioning properly. Never alter the vehicle seats. Never add pads or other devices to
the seat cushion, as this may interfere with the operation of the Passenger Sensing System and
either prevent proper deployment of the passenger airbag or prevent proper suppression of the
passenger air bag.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor:
> 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor:
> 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 2428
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor:
> 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 2429
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor:
> 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 2430
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor:
> 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 2431
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor:
> 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor:
> 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 2436
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor:
> 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 2437
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor:
> 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 2438
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor:
> NHTSA07V344000 > Aug > 07 > Recall 07V344000: Seat Occupant System Reprogramming
Seat Occupant Sensor: All Technical Service Bulletins Recall 07V344000: Seat Occupant System
Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Restraint Systems > Seat Occupant
Sensor > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Sensor: >
06-08-50-009F > Dec > 10 > Restraints - Passenger Presence System Information
Seat Occupant Sensor: All Technical Service Bulletins Restraints - Passenger Presence System
Information
INFORMATION
Bulletin No.: 06-08-50-009F
Date: December 23, 2010
Subject: Information on Passenger Presence Sensing System (PPS or PSS) Concerns With
Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices
Models:
2011 and Prior GM Passenger Cars and Trucks Equipped with Passenger Presence Sensing
System
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 06-08-50-009E (Section 08 - Body and Accessories).
Concerns About Safety and Alterations to the Front Passenger Seat
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE THE
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT AS RELEASED BY GM FOR THAT
VEHICLE. DO NOT ALTER THE SEAT COVERS OR SEAT-RELATED EQUIPMENT. ANY
ALTERATIONS TO SEAT COVERS OR GM ACCESSORIES DEFEATS THE INTENDED DESIGN
OF THE SYSTEM. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF
SUCH IMPROPER SEAT ALTERATIONS, INCLUDING ANY WARRANTY REPAIRS INCURRED.
The front passenger seat in many GM vehicles is equipped with a passenger sensing system that
will turn off the right front passenger's frontal airbag under certain conditions, such as when an
infant or child seat is present. In some vehicles, the passenger sensing system will also turn off the
right front passenger's seat mounted side impact airbag. For the system to function properly,
sensors are used in the seat to detect the presence of a properly-seated occupant. The passenger
sensing system may not operate properly if the original seat trim is replaced (1) by non-GM covers,
upholstery or trim, or (2) by GM covers, upholstery or trim designed for a different vehicle or (3) by
GM covers, upholstery or trim that has been altered by a trim shop, or (4) if any object, such as an
aftermarket seat heater or a comfort enhancing pad or device is installed under the seat fabric or
between the occupant and the seat fabric.
Aftermarket Seat Heaters, Custom Upholstery, and Comfort Enhancing Pads or Devices
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE ONLY
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT RELEASED AS GM
ACCESSORIES FOR THAT VEHICLE. DO NOT USE ANY OTHER TYPE OF SEAT COVERS OR
SEAT-RELATED EQUIPMENT, OR GM ACCESSORIES RELEASED FOR OTHER VEHICLE
APPLICATIONS. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF SUCH
IMPROPER SEAT ACCESSORIES, INCLUDING ANY WARRANTY REPAIRS MADE
NECESSARY BY SUCH USE.
Many types of aftermarket accessories are available to customers, upfitting shops, and dealers.
Some of these devices sit on top of, or are Velcro(R) strapped to the seat while others such as seat
heaters are installed under the seat fabric. Additionally, seat covers made of leather or other
materials may have different padding thickness installed that could prevent the Passenger Sensing
System from functioning properly. Never alter the vehicle seats. Never add pads or other devices to
the seat cushion, as this may interfere with the operation of the Passenger Sensing System and
either prevent proper deployment of the passenger airbag or prevent proper suppression of the
passenger air bag.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Starting and Charging > Battery Current
Sensor > Component Information > Diagrams
Battery Current Sensor: Diagrams
Engine Electrical Connector End Views
Battery Current Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Starting and Charging > Battery Current
Sensor > Component Information > Diagrams > Page 2452
Battery Current Sensor: Service and Repair
Battery Current Sensor Replacement
Removal Procedure
1. Remove the negative battery cable. 2. Mark the location of the battery current sensor on the
battery cable with tape for reference during installation. 3. Remove the tape securing the battery
current sensor to the negative battery cable. 4. Mark the location of the negative battery cable clips
and remove the clip from the cable. 5. Squeeze the negative battery cable branches together.
Important: Note the orientation of the battery current sensor prior to removal.
6. Slide the battery current sensor (1) off of the negative battery cable.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Starting and Charging > Battery Current
Sensor > Component Information > Diagrams > Page 2453
1. Squeeze the negative battery cable branches together.
Important: Ensure the battery current sensor is installed in the correct direction and location on the
negative battery cable.
2. Slide the NEW battery current sensor (1) up onto the negative battery cable to the location
previously marked during removal. 3. Wrap electrical tape around the battery current sensor leg in
order to secure the sensor to the negative battery cable. 4. Install the negative battery cable clip to
the cable to the locations previously marked during removal. 5. Install the negative battery cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Starting and Charging > Ignition Switch >
Ignition Switch Lock Cylinder > Component Information > Technical Service Bulletins > Customer Interest for Ignition Switch
Lock Cylinder: > 09-02-35-005C > Feb > 11 > Ignition - Key Difficult To Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: Customer Interest Ignition - Key Difficult To Remove, Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Starting and Charging > Ignition Switch >
Ignition Switch Lock Cylinder > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Ignition Switch Lock Cylinder: > 09-02-35-005C > Feb > 11 > Ignition - Key Difficult To Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: All Technical Service Bulletins Ignition - Key Difficult To Remove,
Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Starting and Charging > Ignition Switch >
Ignition Switch Lock Cylinder > Component Information > Technical Service Bulletins > Page 2468
Ignition Switch Lock Cylinder: Service and Repair
Key and Lock Cylinder Coding
Use Instruction Sheet Supplied
For the lock cylinder coding procedure, refer to the instruction sheet supplied in the lock cylinder
kit.
For key cutting information, refer to the instructions provided from the manufacturer of the key
cutting equipment used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Starting and Charging > Neutral Safety
Switch > Component Information > Locations
Neutral Safety Switch: Locations
Engine Electrical Component Views
Front of the Engine
1 - Exhaust Gas Recirculation (EGR) Valve 2 - Throttle Actuator Control (TAC) Module 3 Evaporative Emissions (EVAP) Canister Purge Solenoid 4 - Park/Neutral Position Switch 5 - Starter
6 - Starter Solenoid 7 - Engine Oil Pressure (EOP) Switch 8 - Knock Sensor (KS) 2 9 - A/C
Compressor Clutch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Steering and Suspension > Sensors and
Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs
Tire Pressure Sensor: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Steering and Suspension > Sensors and
Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs > Page 2478
Tire Pressure Sensor: Technical Service Bulletins Tire Monitor System - TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Steering and Suspension > Sensors and
Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs > Page 2479
Tire Pressure Sensor: Technical Service Bulletins Tires - Minimizing Damage to TPM Sensors
INFORMATION
Bulletin No.: 08-03-10-007
Date: May 16, 2008
Subject: Minimizing Damage to Tire Pressure Monitor (TPM) Sensors During Tire
Mounting/Dismounting
Models: 2009 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2009 and
Prior HUMMER H2, H3 2009 and Prior Saab 9-7X
with Wheel Mounted Tire Pressure Sensors
Minimizing Damage To TPM Sensors
All GM vehicles now in production and sold in the U.S., as well as many vehicles sold in Canada,
feature Tire Pressure Monitoring Systems that have valve stem mounted Tire Pressure Sensors.
When dismounting and mounting tires, care must be taken when breaking the bead loose from the
wheel. If the tire machines bead breaking fixture is positioned too close to the tire pressure sensor,
as the tire bead breaks away from the wheel it may be forced into, or catch on the edge of the tire
pressure sensor. This can damage the sensor and require the sensor to be replaced.
Care must also be taken when transferring the tire bead to the other side of the wheel rim. As the
tire machine rotates and the tire bead is stretched around the wheel rim, the bead can come in
contact with the sensor if it is not correctly positioned in relation to the mounting/dismounting head
prior to tire mounting/dismounting. This can also cause sensor damage requiring replacement.
Procedure
Notice:
Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in
order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result.
Notice:
Do not scratch or damage the clear coating on aluminum wheels with the tire changing equipment.
Scratching the clear coating could cause the aluminum wheel to corrode and the clear coating to
peel from the wheel.
1. Remove the valve core from the valve stem.
2. Deflate the tire completely.
Important:
Rim-clamp European-type tire changers are recommended.
3. Use the tire changer in order to remove the tire from the wheel. Follow steps 4-7 to remove the
tire from the wheel.
4. When separating the tire bead from the wheel position the bead breaking fixture 90, 180 and 270
degrees from the valve stem.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Steering and Suspension > Sensors and
Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs > Page 2480
5. Position the wheel and tire so the valve stem is situated at the 2 o'clock position relative to the
head. The tire iron or pry bar can be inserted when prying the outer tire bead up and over the
mounting/dismounting head.
6. Position the wheel and tire so that the valve stem is situated again at the 2 o'clock position
relative to the head. The tire iron or pry bar can be inserted when prying the inner tire bead up and
over the mounting/dismounting head.
7. Remove all residual liquid sealant from the inside of the tire and wheel surfaces. If any tire
sealant is noted upon tire dismounting on vehicles equipped with TPM replace the tire pressure
sensor.
8. Use a wire brush or coarse steel wool in order to remove any rubber, light rust or corrosion from
the wheel bead seats.
Important:
If bead seat corrosion has been identified as an air loss concern on the wheel being worked on,
refer to GM Service Bulletin # 08-03-10-006 for additional information on correcting the leak.
9. Apply GM P/N 12345884 (in Canada, P/N 5728223) or equivalent to the tire bead and the wheel
rim.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Steering and Suspension > Sensors and
Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs > Page 2481
10. Using the tire machine, rotate the tire/wheel assembly clockwise when transferring the tire bead
to the inside of the wheel rim.
11. Position the rim so that the valve stem (1) is situated at the 3 o'clock position relative to the
head (2). This will protect the sensor when the bottom bead seats.
12. After the bottom bead is on the wheel, reposition the wheel and tire so that the valve stem is
situated at the 9 o'clock position relative to the head. This will protect the sensor while mounting
the tire bead to the outside of the wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Steering and Suspension > Sensors and
Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs > Page 2482
13. Use the tire changer in order to install the tire to the wheel.
Caution:
To avoid serious personal injury, do not stand over tire when inflating. The bead may break when
the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any
tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, lubricate
the beads and reinflate. Overinflating may cause the bead to break and cause serious personal
injury.
Important:
Allowable bead seating pressure is 345 kPa (50 psi) on Extended Mobility Tires.
14. Inflate the tire until it passes the bead humps. Be sure that the valve core is not installed at this
time.
15. Install the valve core to the valve core stem.
16. Inflate the tire to the proper air pressure.
17. Ensure that the locating rings are visible on both sides of the tire in order to verify that the tire
bead is fully seated on the wheel.
Parts Information
The product shown above is available from GM SPO.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Locations
Transmission Position Switch/Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
75 - Park/Neutral Position Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Locations > Page 2488
Transmission Position Switch/Sensor: Adjustments
Transaxle Range Switch Adjustment
Tools Required
* J 36346 Fascia Retainer Remover
* J 45404 Transmission Indicator Alignment Tool
1. Remove the battery tray. 2. Shift the transaxle into neutral (N) position.
3. Using the J 36346, remove the shift control cable from the transaxle range switch lever.
4. Loosen the transaxle range switch bolt (2) and stud (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Locations > Page 2489
5. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
on the J 45404.
Notice: Refer to Fastener Notice.
6. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
7. Remove the J 45404 from the manual shaft. 8. Install the shift control cable to the transaxle
range switch lever. 9. Install the battery tray.
10. After adjusting the transaxle range switch, verify the engine only starts in park (P) or neutral
(N). If the engine starts in any other position, readjust
the switch.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle
Range Switch Lever Replacement
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Lever
Replacement
Transaxle Range Switch Lever Replacement
Tools Required
J 36346 Fascia Retainer Remover
Removal Procedure
1. Remove the battery tray.
2. Using the J 36346, disconnect the shift control cable from the transaxle range switch lever.
3. Remove the transaxle range switch lever nut and lever.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle
Range Switch Lever Replacement > Page 2492
Notice: Refer to Fastener Notice.
1. Install the transaxle range switch lever and lever nut.
Tighten the nut to 16 N.m (12 lb ft).
2. Install the shift control cable end fitting onto the ball stud of the transaxle range switch lever. An
audible snap will be heard when properly
installed.
3. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle
Range Switch Lever Replacement > Page 2493
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Replacement
Transaxle Range Switch Replacement
Tools Required
J 45404 Transmission Indicator Alignment Tool
Removal Procedure
1. Remove the battery tray.
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
switch.
2. Apply the parking brake and place control shift lever in neutral (N). 3. Remove the transaxle
range switch lever.
4. Disconnect the electrical connectors (3, 5) from the transaxle range switch.
5. Using a screwdriver, bend the lockwasher tabs down away from the manual shaft nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle
Range Switch Lever Replacement > Page 2494
6. Remove the nut, lock tab washer, and flat washer.
7. Remove the transaxle range switch bolt (2), stud (1), and flat washers. 8. Remove the transaxle
range switch (3).
Installation Procedure
1. Install the transaxle range switch (3) to the manual shaft lever. 2. Install the washer stud (1) and
the bolt (2). Hand tighten ONLY at this time.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle
Range Switch Lever Replacement > Page 2495
Notice: Refer to Fastener Notice.
3. Install the flat washer, lock tab washer, and nut.
Tighten the nut to 7 N.m (62 lb in).
4. Ensure the manual shaft is in neutral (N) position.
5. Bend the lock washer tabs up to secure the nut.
6. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle
Range Switch Lever Replacement > Page 2496
on the J 45404.
7. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
8. Remove the J 45404 from the manual shaft.
9. Connect the electrical connectors (3, 5) to the transaxle range switch.
10. Install the transaxle range switch lever. 11. Install the battery tray. 12. After installing and
adjusting the switch, verify the engine only starts in park (P) or neutral (N). If the engine starts in
any other position, readjust
the switch. Refer to Transaxle Range Switch Adjustment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Locations
Transmission Speed Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
62 - Automatic Transmission Output Speed Sensor 73 - Automatic Transmission Input Speed
Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Diagrams > Input Shaft Speed (ISS)
Sensor Connector, Wiring Harness Side
Transmission Speed Sensor: Diagrams Input Shaft Speed (ISS) Sensor Connector, Wiring
Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Diagrams > Input Shaft Speed (ISS)
Sensor Connector, Wiring Harness Side > Page 2502
Transmission Speed Sensor: Diagrams Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input Speed
Sensor Replacement
Transmission Speed Sensor: Service and Repair Input Speed Sensor Replacement
Input Speed Sensor Replacement
Removal Procedure
1. Remove the battery tray.
2. Disconnect the wiring harness (4) from the input speed sensor.
3. Remove the input speed sensor bolt. 4. Remove the input speed sensor. 5. Remove the input
speed sensor O-ring. Discard the O-ring.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input Speed
Sensor Replacement > Page 2505
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new input speed sensor
O-ring. 2. Install the new input speed sensor O-ring onto the input speed sensor. 3. Install the input
speed sensor to the transaxle.
Notice: Refer to Fastener Notice.
4. Install the input speed sensor bolt.
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (4) to the input speed sensor. 6. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input Speed
Sensor Replacement > Page 2506
Transmission Speed Sensor: Service and Repair Output Speed Sensor Replacement
Output Speed Sensor Replacement
Removal Procedure
1. Disconnect the wiring harness (2) from the output shaft speed sensor.
2. Remove the output speed sensor bolt (3). 3. Remove the output shaft speed sensor (2) and the
O-ring (1).
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input Speed
Sensor Replacement > Page 2507
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new output speed sensor
O-ring (1). 2. Install the new output speed sensor O-ring (1) onto the output speed sensor (2). 3.
Install the output speed sensor (2) into the transmission case assembly.
Notice: Refer to Fastener Notice.
4. Install the output speed sensor bolt (3).
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (2) to the output shaft speed sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Temperature Sensor/Switch, A/T > Component Information > Locations
Transmission Temperature Sensor/Switch: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - A/T > Transmission Temperature Sensor/Switch, A/T > Component Information > Locations > Page 2511
Transmission Temperature Sensor/Switch: Diagrams
Automatic Transmission Fluid Temperature (TFT) Sensor
Automatic Transmission Fluid Temperature (TFT) Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Transmission and Drivetrain > Sensors
and Switches - Transfer Case > Speed Sensor, Transfer Case > Component Information > Technical Service Bulletins >
Drivetrain - Updated Transfer Case Speed Sensor Conn.
Speed Sensor: Technical Service Bulletins Drivetrain - Updated Transfer Case Speed Sensor
Conn.
Bulletin No.: 06-04-21-001
Date: May 17, 2006
INFORMATION
Subject: Updated Transfer Case Connector Service Kit Now Available For Transfer Case Speed
Sensor Wire Harness Connector that Comes Loose Or Connector Retainer Clip Breaks
Models: 2007 and Prior GM Light Duty Trucks 2007 and Prior HUMMER H2, H3 2005-2007 Saab
9-7X
with Four-Wheel Drive or All-Wheel Drive
Technicians may find that when the transfer case speed sensor wire harness connector is
removed, the connector lock flexes/bends and does not return to the original position. The transfer
case speed sensor wire harness connector then has no locking device. On older vehicles, the
plastic connector retainer becomes brittle and the clip may break as soon as it is flexed. In the past,
the only service fix was to install a wire harness connector service pack, P/N 88987183. This repair
procedure involved splicing a new service connector with an integral connector lock. This
connector service kit is of the same design and was still prone to failure over time.
A new connector service repair kit is now available, P/N 15306187, that is an updated design. This
new kit should be used whenever the speed sensor wire harness connector requires replacement.
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Windows and Glass > Power Window
Switch > Component Information > Locations
Power Window Switch: Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Windows and Glass > Power Window
Switch > Component Information > Locations > Page 2521
LR Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Windows and Glass > Power Window
Switch > Component Information > Locations > Page 2522
RR Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Windows and Glass > Power Window
Switch > Component Information > Locations > Page 2523
Power Window Switch: Diagrams
Window Switch - Driver
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Windows and Glass > Power Window
Switch > Component Information > Locations > Page 2524
Window Switch - Front Passenger
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Windows and Glass > Power Window
Switch > Component Information > Service and Repair > Power Window Switch Replacement
Power Window Switch: Service and Repair Power Window Switch Replacement
POWER WINDOW SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Windows and Glass > Power Window
Switch > Component Information > Service and Repair > Power Window Switch Replacement > Page 2527
Power Window Switch: Service and Repair Rear Side Door Window Switch Replacement
REAR SIDE DOOR WINDOW SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Wiper and Washer Systems > Windshield
Washer Switch > Component Information > Locations
Windshield Washer Switch: Locations
Wiper/Washer System Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Wiper and Washer Systems > Windshield
Washer Switch > Component Information > Locations > Page 2532
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Wiper and Washer Systems > Windshield
Washer Switch > Component Information > Locations > Page 2533
Windshield Wiper Washer Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Wiper and Washer Systems > Windshield
Washer Switch > Component Information > Service and Repair > Wipers/Washer Switch Replacement
Windshield Washer Switch: Service and Repair Wipers/Washer Switch Replacement
WIPERS/WASHER SWITCH REPLACEMENT
REMOVAL PROCEDURE
1. Remove the steering column trim covers. 2. Disconnect the wipers/washer switch connector.
3. Depress the locking tabs and remove the wiper/washer switch.
INSTALLATION PROCEDURE
1. Install the wipers/washer switch to the steering column.Ensure the locking tabs are fully
engaged. 2. Connect the wipers/washer switch harness connector. 3. Install the steering column
trim covers.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Wiper and Washer Systems > Windshield
Washer Switch > Component Information > Service and Repair > Wipers/Washer Switch Replacement > Page 2536
Windshield Washer Switch: Service and Repair Rear Window Wiper and Washer Switch
Replacement
REAR WINDOW WIPER AND WASHER SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Wiper and Washer Systems > Wiper
Switch > Component Information > Locations
Wiper Switch: Locations
Wiper/Washer System Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Wiper and Washer Systems > Wiper
Switch > Component Information > Locations > Page 2540
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Wiper and Washer Systems > Wiper
Switch > Component Information > Locations > Page 2541
Windshield Wiper Washer Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Wiper and Washer Systems > Wiper
Switch > Component Information > Service and Repair > Wipers/Washer Switch Replacement
Wiper Switch: Service and Repair Wipers/Washer Switch Replacement
WIPERS/WASHER SWITCH REPLACEMENT
REMOVAL PROCEDURE
1. Remove the steering column trim covers. 2. Disconnect the wipers/washer switch connector.
3. Depress the locking tabs and remove the wiper/washer switch.
INSTALLATION PROCEDURE
1. Install the wipers/washer switch to the steering column.Ensure the locking tabs are fully
engaged. 2. Connect the wipers/washer switch harness connector. 3. Install the steering column
trim covers.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Sensors and Switches > Sensors and Switches - Wiper and Washer Systems > Wiper
Switch > Component Information > Service and Repair > Wipers/Washer Switch Replacement > Page 2544
Wiper Switch: Service and Repair Rear Window Wiper and Washer Switch Replacement
REAR WINDOW WIPER AND WASHER SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Technical Service Bulletins >
Steering/Suspension - Wheel Alignment Specifications
Alignment: Technical Service Bulletins Steering/Suspension - Wheel Alignment Specifications
WARRANTY ADMINISTRATION
Bulletin No.: 05-03-07-009C
Date: December 09, 2010
Subject: Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks
Supercede: This bulletin is being extensively revised to provide technicians and warranty
administrators with an all inclusive guide for wheel alignments. PLEASE FAMILIARIZE YOURSELF
WITH THESE UPDATES BEFORE PERFORMING YOUR NEXT GM WHEEL ALIGNMENT
SERVICE. Please discard Corporate Bulletin Number 05-03-07-009B (Section 03 - Suspension).
Purpose
The purpose of this bulletin is to provide retail, wholesale and fleet personnel with General Motors'
warranty service requirements and recommendations for customer concerns related to wheel
alignment. For your convenience, this bulletin updates and centralizes all of GM's Standard Wheel
Alignment Service Procedures, Policy Guidelines and bulletins on wheel alignment warranty
service.
Important PLEASE FAMILIARIZE YOURSELF WITH THESE UPDATES BEFORE PERFORMING
YOUR NEXT GM WHEEL ALIGNMENT SERVICE.
The following five (5) key steps are a summary of this bulletin and are REQUIRED in completing a
successful wheel alignment service.
1. Verify the vehicle is in an Original Equipment condition for curb weight, tires, wheels, suspension
and steering configurations. Vehicles
modified in any of these areas are not covered for wheel alignment warranty.
2. Review the customer concern relative to "Normal Operation" definitions. 3. Verify that vehicle is
within the "Mileage Policy" range. 4. Document wheel alignment warranty claims appropriately for
labor operations E2000 and E2020.
The following information must be documented or attached to the repair order:
- Customer concern in detail
- What corrected the customer concern?
- If a wheel alignment is performed:
- Consult SI for proper specifications.
- Document the "Before" AND "After" wheel alignment measurements/settings.
- Completed "Wheel Alignment Repair Order Questionnaire" (form attached to this bulletin)
5. Use the proper wheel alignment equipment (preferred with print-out capability), process and the
appropriate calibration maintenance schedules.
Important If it is determined that a wheel alignment is necessary under warranty, use the proper
labor code for the repair. E2000 for Steering Wheel Angle and/or Front Toe set or E2020 for Wheel
Alignment Check/Adjust includes Caster, Camber and Toe set (Wheel alignment labor time for
other component repairs is to be charged to the component that causes a wheel alignment
operation.).
The following flowchart is to help summarize the information detailed in this bulletin and should be
used whenever a wheel alignment is performed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Technical Service Bulletins >
Steering/Suspension - Wheel Alignment Specifications > Page 2550
Verify Original Equipment Condition of the Vehicle
- Verify that Original Equipment Tires and Wheels or Official GM Accessory Tires and Wheels are
on the vehicle.
- Verify that aftermarket suspension "Lift" or "Lowering" Kits or other suspension alterations have
NOT been done to the vehicle.
- Check for accidental damage to the vehicle; for example, severe pothole or curb impacts, collision
damage that may have affected the wheel alignment of the vehicle; e.g., engine cradles,
suspension control arms, axles, wheels, wheel covers, tires may show evidence of damage/impact.
- Check to be sure vehicle has seen "Normal Use" rather than abuse; e.g., very aggressive driving
may show up by looking at the tires and condition of the vehicle.
- Check for other additional equipment items that may significantly affect vehicle mass such as
large tool boxes, campers, snow plow packages (without the snowplow RPO), etc., especially in
trucks and cutaway/incomplete vehicles. Significant additional mass can affect trim height and
wheel alignment of the vehicle and may necessitate a customer pay wheel alignment when placed
semi-permanently in the vehicle (Upfitter instructions are to realign the vehicle after placement of
these types of items. (This typically applies to trucks and incomplete vehicles that can be upfit with
equipment such as the above.)
Customer Concerns, "Normal Operation" Conditions and "Mileage Policy"
Possible Concerns
The following are typical conditions that may require wheel alignment warranty service:
1. Lead/Pull: defined as "at a constant highway speed on a typical straight road, the amount of
effort required at the steering wheel to maintain the
vehicle's straight heading."
Important Please evaluate for the condition with hands-on the steering wheel. Follow the "Vehicle
Leads/Pulls" diagnostic tree located in SI to determine the cause of a lead/pull concern. Lead/Pull
concerns can be due to road crown or road slope, tires, wheel alignment or even in rare
circumstances a steering gear issue. Lead/pull concerns due to road crown are considered
"Normal Operation" and are NOT a warrantable condition -- the customer should be advised that
this is "Normal Operation."
Important Some customers may comment on a "Lead/Pull" when they hold the steering wheel in a
level condition. If so, this is more likely a "steering wheel angle" concern because the customer is
"steering" the vehicle to obtain a "level" steering wheel.
2. Steering wheel angle to the left or right (counter-clockwise or clockwise, respectively): Defined
as the steering wheel angle (clocking)
deviation from "level" while maintaining a straight heading on a typical straight road.
3. Irregular or Premature tire wear: Slight to very slight "feathering" or "edge" wear on the
shoulders of tires is NOT considered unusual and
should even out with a tire rotation; if the customer is concerned about a "feathering" condition of
the tires, the customer could be advised to rotate the tires earlier than the next scheduled
mileage/maintenance interval (but no later than the next interval). Be sure to understand the
customer's driving habits as this will also heavily influence the tire wear performance; tire wear from
aggressive or abusive driving habits is NOT a warrantable condition.
Important Slight or mild feathering, cupping, edge or heel/toe wear of tire tread shoulders is
"normal" and can show up very early in a tire/vehicle service mileage; in fact, some new tires can
show evidence of feathering from the factory. These issues do NOT affect the overall performance
and tread life of the tire. Dealer personnel should always check the customer's maintenance
records to ensure that tire inflation pressure is being maintained to placard and that the tires are
being rotated (modified-X pattern) at the proper mileage intervals. Wheel alignments are NOT to be
performed for the types of "Normal" Tire Feathering shown in Figures 1-4 below.
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Figure 1: Full Tread View - "NORMAL" Tire "Feathering" Wear on the Shoulder/Adjacent/Center
Ribs
Figure 2: Tire Shoulder View Example 1 - "NORMAL" Tire "Feathering" Wear on the Shoulder
Figure 3: Tire Shoulder View Example 2 - "NORMAL" Tire "Feathering" Wear
Figure 4: Detail Side View of Tire Shoulder Area - "NORMAL" Tire "Feathering" Wear
Important When a wheel alignment is deemed necessary for tire wear, be sure to document on the
repair order, in as much detail as possible, the severity and type of tire wear (e.g., severe center
wear or severe inside or outside shoulder wear) and the position of the tire on the vehicle (RF, LF,
LR, RR). Please note the customer's concern with the wear such as, noise, appearance, wear life,
etc. A field product report with pictures of the tire wear condition is recommended. Refer to
Corporate Bulletin Number 02-00-89-002J and #07-00-89-036C.
4. Other repairs that affect wheel alignment; e.g., certain component replacement such as
suspension control arm replacement, engine cradle
adjustment/replace, steering gear replacement, steering tie rod replace, suspension strut/shock,
steering knuckle, etc. may require a wheel alignment.
Important If other components or repairs are identified as affecting the wheel alignment, policy calls
for the wheel alignment labor time to be charged to the replaced/repaired component's labor
operation time rather than the wheel alignment labor operations.
Important Vibration type customer concerns are generally NOT due to wheel alignment except in
the rare cases; e.g., extreme diagonal wear across the tread. In general, wheel alignments are
NOT to be performed as an investigation/correction for vibration concerns.
"Normal Operation" Conditions
Vehicle Lead/Pull Due to Road Crown or Slope:
As part of "Normal Operation," vehicles will follow side-to-side or left to right road crown or slope.
Be sure to verify from the customer the types of roads they are driving as they may not recognize
the influence of road crown on vehicle lead/pull and steering wheel angle. If a vehicle requires
significant steering effort to prevent it from "climbing" the road crown there may be an issue to be
looked into further.
Important
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A wheel alignment will generally NOT correct vehicles that follow the road crown since this is within
"Normal Operation."
Mileage Policy
The following mileage policy applies for E2020 and E2000 labor operations: Note
Wheel Alignment is NOT covered under the New Vehicle Limited Warranty for Express and Savana
Cutaway vehicles as these vehicles require Upfitters to set the wheel alignment after completing
the vehicles.
- 0-800 km (0-500 mi): E2000/E2020 claims ONLY allowed with Call Center Authorization. Due to
the tie down during shipping, the vehicle's suspension requires some time to reach normal
operating position. For this reason, new vehicles are generally NOT to be aligned until they have
accumulated at least 800 km (500 mi). A field product report should accompany any claim within
this mileage range.
- 801-12,000 km (501-7,500 mi):
- If a vehicle came from the factory with incorrect alignment settings, any resulting off-angle
steering wheel, lead/pull characteristics or the rare occurrence of excessive tire wear would be
apparent early in the life of the vehicle. The following policy applies:
- Vehicles 100% Factory Set/Measured for Caster/Camber/Toe - Escalade/ESV/EXT,
Tahoe/Suburban, Yukon/XL/Denali, Silverado/Sierra, Express/Savana, Corvette and
Colorado/Canyon: E2000/E2020 Claims: Call Center Authorization Required
- All Vehicles NOT 100% Factory Set/Measured for Caster/Camber/Toe as noted above:
E2000/E2020 Claims: Dealer Service Manager Authorization Required
- 12,001 km and beyond (7,501 miles and beyond): During this period, customers are responsible
for the wheel alignment expense or dealers may provide on a case-by case basis a one-time
customer enthusiasm claim up to 16,000 km (10,000 mi). In the event that a defective component
required the use of the subject labor operations, the identified defective component labor operation
will include the appropriate labor time for a wheel alignment as an add condition to the component
repair.
Important Only one wheel alignment labor operation claim (E2000 or E2020) may be used per VIN.
Warranty Documentation Requirements
When a wheel alignment service has been deemed necessary, the following items will need to be
clearly documented on/with the repair order:
- Customer concern in detail
- What corrected the customer concern?
- If a wheel alignment is performed:
- Consult SI for proper specifications.
- Document the "Before" AND "After" wheel alignment measurements/settings.
- Completed "Wheel Alignment Repair Order Questionnaire" (form attached to this bulletin)
1. Document the customer concern in as much detail as possible on the repair order and in the
warranty administration system. Preferred examples:
- Steering wheel is off angle in the counterclockwise direction by approximately x degrees or
clocking position.
- Vehicle lead/pulls to the right at approximately x-y mph. Vehicle will climb the road crown. Severe,
Moderate or Slight.
- RF and LF tires are wearing on the outside shoulders with severe feathering.
Important In the event of a lead/pull or steering wheel angle concern, please note the direction of
lead/pull (left or right) or direction of steering wheel angle (clockwise or counterclockwise) on the
repair order and within the warranty claim verbatim.
Important In the event of a tire wear concern, please note the position on the vehicle and where the
wear is occurring on the tire; i.e., the RF tire is wearing on the inside shoulder.
2. Document the technician's findings on cause and correction of the issue. Examples:
- Reset LF toe from 0.45 degrees to 0.10 degrees and RF toe from -0.25 degrees to 0.10 degrees
to correct the steering wheel angle from 5 degrees counterclockwise to 0 degrees.
- Reset LF camber from 0.25 degrees to -0.05 degrees to correct the cross-camber condition of
+0.30 degrees to 0.00 degrees on the vehicle.
- Front Sum toe was found to be 0.50 degrees, reset to 0.20 degrees.
3. Print-out the "Before" and "After" wheel alignment measurements/settings and attach them to the
Repair Order or if print-out capability is not
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available, measurements may also be clearly and legibly handwritten into the Wheel Alignment
Repair Order Questionnaire attached to this bulletin.
4. Attach the Wheel Alignment Repair Order Questionnaire below along with the print-out of
"Before" and "After" wheel alignment measurements to
the Repair Order and retain for use by GM.
Wheel Alignment Equipment and Process
Wheel alignments must be performed with a quality machine that will give accurate results when
performing checks. "External Reference" (image-based camera technology) is preferred. Please
refer to Corporate Bulletin Number 05-00-89-029B: General Motors Dealership Critical Equipment
Requirements and Recommendations.
Requirements:
- Computerized four wheel alignment system.
- Computer capable of printing before and after alignment reports.
- Computer capable of time and date stamp printout.
- Racking system must have jacking capability
- Racking system must be capable of level to 1.6 mm (1/16 in)
- Appropriate wheel stops and safety certification
- Built-in turn plates and slip plates
- Wheel clamps capable of attaching to 20" or larger wheels
- Racking capable of accepting any GM passenger car or light duty truck
- Operator properly trained and ASE-certified (U.S. only) in wheel alignment
Recommendations:
Racking should have front and rear jacking capability.
Equipment Maintenance and Calibration:
Alignment machines must be regularly calibrated in order to give correct information. Most
manufacturers recommend the following:
- Alignment machines with "internal reference" sensors should be checked (and calibrated, if
necessary) every six months.
- Alignment machines with "external reference" (image-based camera technology) should be
checked (and calibrated, if necessary) once a year.
- Racks must be kept level to within 1.6 mm (1/16 in).
- If any instrument that is part of the alignment machine is dropped or damaged in some way,
check the calibration immediately.
Check with the manufacturer of your specific equipment for their recommended service/calibration
schedule.
Wheel Alignment Process
When performing wheel alignment measurement and/or adjustment, the following steps should be
taken:
Preliminary Steps:
1. Verify that the vehicle has a full tank of fuel (compensate as necessary). 2. Inspect the wheels
and the tires for damage. 3. Inspect the tires for the proper inflation and irregular tire wear. 4.
Inspect the wheel bearings for excessive play. 5. Inspect all suspension and steering parts for
looseness, wear, or damage. 6. Inspect the steering wheel for excessive drag or poor return due to
stiff or rusted linkage or suspension components. 7. Inspect the vehicle trim height. 8. Compensate
for frame angle on targeted vehicles (refer to Wheel Alignment Specifications in SI).
Satisfactory vehicle operation may occur over a wide range of alignment angles. However, if the
wheel alignment angles are not within the range of specifications, adjust the wheel alignment to the
specifications. Refer to Wheel Alignment Specifications in SI. Give consideration to excess loads,
such as tool boxes, sample cases, etc. Follow the wheel alignment equipment manufacturer's
instructions.
Measure/Adjust:
Important Prior to making any adjustments to wheel alignment on a vehicle, technicians must verify
that the wheel alignment specifications loaded into their wheel alignment machine are up-to-date
by comparing these to the wheel alignment specifications for the appropriate model and model year
in SI. Using incorrect and/or outdated specifications may result in unnecessary adjustments,
irregular and/or premature tire wear and repeat customer concerns
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Important When performing adjustments to vehicles requiring a 4-wheel alignment, set the rear
wheel alignment angles first in order to obtain proper front wheel alignment angles.
Perform the following steps in order to measure the front and rear alignment angles:
1. Install the alignment equipment according to the manufacturer's instructions. 2. Jounce the front
and the rear bumpers 3 times prior to checking the wheel alignment. 3. Measure the alignment
angles and record the readings.
If necessary, adjust the wheel alignment to vehicle specification and record the before and after
measurements. Refer to Wheel Alignment Specifications in SI.
Important Technicians must refer to SI for the correct wheel alignment specifications. SI is the only
source of GM wheel alignment specifications that is kept up-to-date throughout the year.
Test drive vehicle to ensure proper repair.
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Frame Angle Measurement (Express / Savana Only) ........
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What corrected the customer concern and was the repair verified?
Please Explain: .............
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Specifications > Fastener Tightening
Specifications
Alignment: Specifications Fastener Tightening Specifications
Fastener Tightening Specifications
Fastener Tightening Specifications
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Alignment: Specifications Trim Height Specifications
Trim Height Specifications
Trim Height Specifications
Measuring Z Height
Measuring Z Height
Measuring D Height
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Measuring D Height
Measuring J or K Height
Measuring J or K Height
Measuring A or B Height
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Measuring A or B Height
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Alignment: Specifications Wheel Alignment Specifications
WHEEL ALIGNMENT SPECIFICATIONS
FRONT SUSPENSION
Camber ................................................................................................................................................
.......................................................... -0.6° ± 0.75° Camber Cross Tolerance ....................................
............................................................................................................................................. 0.0° ±
0.50° Caster ........................................................................................................................................
.................................................................... 3.00° ± 0.75° Caster Cross Tolerance ............................
.......................................................................................................................................................
0.0° ± 0.50° Total Toe .........................................................................................................................
........................................................................... +0.15° ± 0.20° Steering Wheel Angle ......................
..............................................................................................................................................................
. 0.00° ± 3.5° Thrust Angle ..................................................................................................................
................................................................................................. --REAR SUSPENSION
Camber ................................................................................................................................................
.......................................................... -0.5° ± 0.75° Camber Cross Tolerance ....................................
............................................................................................................................................. 0.0° ±
0.75° Caster ........................................................................................................................................
..................................................................................... --- Caster Cross Tolerance ............................
..............................................................................................................................................................
......... --- Total Toe ...............................................................................................................................
....................................................................... +0.2° ± 0.20° Steering Wheel Angle ............................
..............................................................................................................................................................
.......... --- Thrust Angle .........................................................................................................................
.......................................................................... 0.0° ± 0.20°
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Description and Operation > Caster
Description
Alignment: Description and Operation Caster Description
Caster Description
Caster Description
Caster is the tilting of the uppermost point of the steering axis either forward or backward, when
viewed from the side of the vehicle. A backward tilt is positive (+) and a forward tilt is negative (-).
Caster influences directional control of the steering but does not affect the tire wear. Caster is
affected by the vehicle height, therefore it is important to keep the body at its designed height.
Overloading the vehicle or a weak or sagging rear spring will affect caster. When the rear of the
vehicle is lower than its designated trim height, the front suspension moves to a more positive
caster. If the rear of the vehicle is higher than its designated trim height, the front suspension
moves to a less positive caster.
With too little positive caster, steering may be touchy at high speed and wheel returnability may be
diminished when coming out of a turn. If one wheel has more positive caster than the other, that
wheel will pull toward the center of the vehicle. This condition will cause the vehicle to pull or lead
to the side with the least amount of positive caster.
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Alignment: Description and Operation Camber Description
Camber Description
Camber Description
Camber is the tilting of the wheels from the vertical when viewed from the front of the vehicle.
When the wheels tilt outward at the top, the camber is positive (+). When the wheel tilts inward at
the top, the camber is negative (-). The amount of tilt is measured in degrees from the vertical.
Camber settings influence the directional control and the tire wear.
Too much positive camber will result in premature wear on the outside of the tire and cause
excessive wear on the suspension parts.
Too much negative camber will result in premature wear on the inside of the tire and cause
excessive wear on the suspension parts.
Unequal side-to-side camber of 1 degree or more will cause the vehicle to pull or lead to the side
with the most positive camber.
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Alignment: Description and Operation Toe Description
Toe Description
Toe Description
Toe is a measurement of how much the front and/or rear wheels are turned in or out from a
straight-ahead position. When the wheels are turned in, toe is positive (+). When the wheels are
turned out, toe is negative (-). The actual amount of toe is normally only a fraction of a degree. The
purpose of toe is to ensure that the wheels roll parallel.
Toe also offsets the small deflections of the wheel support system that occur when the vehicle is
rolling forward. In other words, with the vehicle standing still and the wheels set with toe-in, the
wheels tend to roll parallel on the road when the vehicle is moving.
Improper toe adjustment will cause premature tire wear and cause steering instability.
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Alignment: Description and Operation Setback Description
Setback Description
Setback applies to both the front and the rear wheels. Setback is the amount that one wheel may
be aligned behind the other wheel. Setback may be the result of a road hazard or a collision. The
first clue is a caster difference from side-to-side of more than 1 degree.
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Alignment: Description and Operation
Caster Description
Caster Description
Caster Description
Caster is the tilting of the uppermost point of the steering axis either forward or backward, when
viewed from the side of the vehicle. A backward tilt is positive (+) and a forward tilt is negative (-).
Caster influences directional control of the steering but does not affect the tire wear. Caster is
affected by the vehicle height, therefore it is important to keep the body at its designed height.
Overloading the vehicle or a weak or sagging rear spring will affect caster. When the rear of the
vehicle is lower than its designated trim height, the front suspension moves to a more positive
caster. If the rear of the vehicle is higher than its designated trim height, the front suspension
moves to a less positive caster.
With too little positive caster, steering may be touchy at high speed and wheel returnability may be
diminished when coming out of a turn. If one wheel has more positive caster than the other, that
wheel will pull toward the center of the vehicle. This condition will cause the vehicle to pull or lead
to the side with the least amount of positive caster.
Camber Description
Camber Description
Camber Description
Camber is the tilting of the wheels from the vertical when viewed from the front of the vehicle.
When the wheels tilt outward at the top, the camber is positive (+). When the wheel tilts inward at
the top, the camber is negative (-). The amount of tilt is measured in degrees from the vertical.
Camber settings influence the directional control and the tire wear.
Too much positive camber will result in premature wear on the outside of the tire and cause
excessive wear on the suspension parts.
Too much negative camber will result in premature wear on the inside of the tire and cause
excessive wear on the suspension parts.
Unequal side-to-side camber of 1 degree or more will cause the vehicle to pull or lead to the side
with the most positive camber.
Toe Description
Toe Description
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Toe Description
Toe is a measurement of how much the front and/or rear wheels are turned in or out from a
straight-ahead position. When the wheels are turned in, toe is positive (+). When the wheels are
turned out, toe is negative (-). The actual amount of toe is normally only a fraction of a degree. The
purpose of toe is to ensure that the wheels roll parallel.
Toe also offsets the small deflections of the wheel support system that occur when the vehicle is
rolling forward. In other words, with the vehicle standing still and the wheels set with toe-in, the
wheels tend to roll parallel on the road when the vehicle is moving.
Improper toe adjustment will cause premature tire wear and cause steering instability.
Setback Description
Setback Description
Setback applies to both the front and the rear wheels. Setback is the amount that one wheel may
be aligned behind the other wheel. Setback may be the result of a road hazard or a collision. The
first clue is a caster difference from side-to-side of more than 1 degree.
Thrust Angles Description
Thrust Angles Description
Thrust Angles Description
The front wheels aim or steer the vehicle. The rear wheels control tracking. This tracking action
relates to the thrust angle (3). The thrust angle is the path that the rear wheels take. Ideally, the
thrust angle is geometrically aligned with the body centerline (2).
In the illustration, toe-in is shown on the left rear wheel, moving the thrust line (1) off center. The
resulting deviation from the centerline is the thrust angle.
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If the thrust angle is not set properly the vehicle may "dog track", the steering wheel may not be
centered or it could be perceived as a bent axle. Thrust angle can be checked during a wheel
alignment.
Positive thrust angle means the thrust line is pointing to the right hand side (RHS) of the vehicle.
Negative thrust angle means the thrust line is pointing to the left hand side (LHS) of the vehicle.
If the thrust angle is out of specification, moving the axle to body relationship will change the thrust
angle reading.
If the vehicle is out in the Positive (+) direction-moving the RHS forward and/or LHS rearward will
move the thrust angle towards zero degrees.
If the vehicle is out in the Negative (-) direction-moving the RHS rearward and/or LHS forward will
move the thrust angle towards zero degrees.
Lead/Pull Description
Lead/Pull Description
At a constant highway speed on a typical straight road, lead/pull is the amount of effort required at
the steering wheel to maintain the vehicle's straight path.
Important: Vehicles will tend to lead/pull in the direction of the road slope as part of normal
operation.
Lead/pull is usually caused by the following factors:
* Road slope
* Variability in tire construction
* Wheel alignment (front cross caster and camber)
* Unbalanced steering gear
* Electronic Power Steering (EPS) steering position and torque sensors not calibrated correctly, if
equipped.
Torque Steer Description
Torque Steer Description
A vehicle pulls or leads in one direction during hard acceleration. A vehicle pulls or leads in the
other direction during deceleration.
The following factors may cause torque steer to be more apparent on a particular vehicle:
* A slightly smaller diameter tire on the right front increases a right torque lead. Inspect the front
tires for differences in the brand, the construction, or the size. If the tires appear to be similar,
change the front tires from side-to-side and retest the vehicle. Tire and wheel assemblies have the
most significant effect on torque steer correction.
* A large difference in the right and left front tire pressure
* Left-to-right differences in the front view axle angle may cause significant steering pull in a
vehicle. The pull will be to the side with the most downward sloping axle from the differential to the
wheels. Axles typically slope downward from the differential. The slope of the transaxle pan to
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level ground may be used as an indication of bias axle angles. The side with the higher transaxle
pan (shown on the left side of the illustration) has the most downward sloping axle angle.
Memory Steer Description
Memory Steer Description
Memory steer is when the vehicle wants to lead or pull in the direction the driver previously turned
the vehicle. Additionally, after turning in the opposite direction, the vehicle will want to lead or pull in
that direction.
Wander Description
Wander Description
Wander is the undesired drifting or deviation of a vehicle to either side from a straight path with
hand pressure on the steering wheel. Wander is a symptom of the vehicle's sensitivity to external
disturbances, such as road crown and crosswind, and accentuated by poor on-center steering feel.
Scrub Radius Description
Scrub Radius Description
Ideally, the scrub radius is as small as possible. Normally, the SAI angle and the centerline of the
tire and the wheel intersect below the road surface, causing a positive scrub radius. With struts, the
SAI angle is much larger than the long arm/short arm type of suspension. This allows the SAI angle
to intersect the camber angle above the road surface, forming a negative scrub radius. The smaller
the scrub radius, the better the directional stability. Installing aftermarket wheels that have
additional offset will dramatically increase the scrub radius. The newly installed wheels may cause
the centerline of the tires to move further away from the spindle. This will increase the scrub radius.
A large amount of scrub radius can cause severe shimmy after hitting a bump. Four-wheel drive
vehicles with large tires use a steering damper to compensate for an increased scrub radius. Scrub
radius is not directly measurable by the conventional methods. Scrub radius is projected
geometrically by engineers during the design phase of the suspension.
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Alignment: Testing and Inspection
Trim Height Inspection
Trim Height Measurement
Trim height is a predetermined measurement relating to vehicle ride height. Incorrect trim heights
can cause the vehicle to bottom out over bumps, damage to the suspension components and
symptoms similar to wheel alignment problems. Check the trim heights when diagnosing
suspension concerns and before checking the wheel alignment.
Perform the following before measuring the trim heights:
* Set the tire pressure to the specifications shown on the certification label. Refer to Vehicle
Certification, Tire Place Card, Anti-Theft, and Service Parts ID Label.
* Check the fuel level. Add additional weight if necessary to simulate a full tank.
* Make sure the passenger and rear compartments are empty, except for the spare tire.
* Make sure the vehicle is on a flat and level surface, such as an alignment rack.
* Check that all the vehicle doors are securely closed.
* Check that the vehicle hood and rear deck lids are securely closed.
* Check for installed after market accessories or modifications that could affect trim height
measurement.
Important: All dimensions are measured vertical to the ground. Trim height should be within ±22.0
mm (±0.87 in) to be considered correct.
Measuring the Bumper Heights
Use the following procedure to check the front bumper height:
1. Jounce the front and rear of the vehicle a few times and allow the suspension to settle. 2. The
front bumper height measurement is taken outward 390 mm (15.35 in) from the center of the fascia
to ground level. Measurements are made
from the inner bumper core to ground level. Measure both sides and average the measurements.
3. Compare the measurement to the front bumper curb height specification. Refer to Trim Height
Specifications. 4. If the measurement is outside of the specified range, replace the front springs.
Refer to Strut, Strut Component and/or Spring Replacement. 5. Using your hands, lift the rear
bumper approximately 38 mm (1.59 in). 6. Gently remove your hands and allow the vehicle to
lower. 7. Using your hands, jounce the rear of the vehicle downward approximately 38 mm (1.59
in). 8. Gently remove your hands and allow the vehicle to rise. 9. The rear bumper height
measurement is taken outward 530 mm (20.86 in) from the center of the fascia to ground level.
Measurements are made
from the inner bumper core to ground level. Measure both sides and average the measurements.
10. Compare the measurement to the rear bumper curb height specification. Refer to Trim Height
Specifications. 11. If the measurement is outside of the specified range, replace the rear springs.
Refer to Coil Spring Replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Service and Repair > Measuring Wheel
Alignment
Alignment: Service and Repair Measuring Wheel Alignment
Measuring Wheel Alignment
Steering and vibration complaints are not always the result of improper alignment. One possible
cause is wheel and tire imbalance. Another possibility is tire lead due to worn or improperly
manufactured tires. Lead/pull is defined as follows: At a constant highway speed on a typical
straight road, lead/pull is the amount of effort required at the steering wheel to maintain the
vehicle's straight path. Lead is the vehicle deviation from a straight path on a level road without
pressure on the steering wheel. Refer to Radial Tire Lead/Pull Correction in order to determine if
the vehicle has a tire lead problem. See: Wheels and Tires/Testing and Inspection/Radial Tire
Lead/Pull Correction
Before performing any adjustment affecting wheel alignment, perform the following inspections and
adjustments in order to ensure correct alignment readings:
* Inspect the tires for the proper inflation and irregular tire wear. Refer to Vehicle Certification, Tire
Place Card, Anti-Theft, and Service Parts ID Label and Tire Diagnosis - Irregular or Premature
Wear.
* Inspect the runout of the wheels and the tires.
* Inspect the wheel bearings for backlash and excessive play.
* Inspect the ball joints and tie rod ends for looseness or wear.
* Inspect the control arms and stabilizer shaft for looseness or wear.
* Inspect the steering gear for looseness at the frame. Refer to Fastener Tightening Specifications.
* Inspect the struts/shock absorbers for wear, leaks, and any noticeable noises.
* Inspect the vehicle trim height.
* Inspect the steering wheel for excessive drag or poor return due to stiff or rusted linkage or
suspension components.
* Inspect the fuel level. The fuel tank should be full or the vehicle should have a compensating load
added.
Give consideration to excess loads, such as tool boxes, sample cases, etc. If normally carried in
the vehicle, these items should remain in the vehicle during alignment adjustments. Give
consideration also to the condition of the equipment being used for the alignment. Follow the
equipment manufacturer's instructions.
Satisfactory vehicle operation may occur over a wide range of alignment settings. However, if the
setting exceeds the service allowable specifications, correct the alignment to the service preferred
specifications. Refer to Wheel Alignment Specifications.
Perform the following steps in order to measure the front and rear alignment angles:
1. Install the alignment equipment according to the manufacturer's instructions. 2. Jounce the front
and the rear bumpers 3 times prior to checking the wheel alignment. 3. Measure the alignment
angles and record the readings.
Important: When performing adjustments to vehicles requiring a 4-wheel alignment, set the rear
wheel alignment angles first in order to obtain proper front alignment angles.
4. Adjust alignment angles to vehicle specification, if necessary. Refer to Wheel Alignment
Specifications.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Service and Repair > Measuring Wheel
Alignment > Page 2575
Alignment: Service and Repair Front Camber Adjustment
Front Camber Adjustment
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the wheel and tire
assemblies.
3. Remove the strut to knuckle nuts and bolts. Discard the nuts and bolts.
4. If the strut has not been previously modified, perform the following procedure:
1. Disconnect the strut from the knuckle.
Important:
* Maximum outboard adjustment-(increased negative camber) 2.0 mm of outboard elongation or to
within 11.0 mm from outboard
edge of lower strut clevis bracket, whichever comes first
* Maximum inboard adjustment-(increased positive camber) 4.0 mm of inboard elongation
* If filing the strut, paint the exposed metal with primer.
If increasing negative camber, remove material from the outside of the lower strut hole.
2. If decreasing negative camber, remove material from the inside of the lower strut hole.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Service and Repair > Measuring Wheel
Alignment > Page 2576
5. Loosely install new strut to knuckle nuts and bolts.
6. Adjust the camber to specifications by moving the top of the wheel in or out as necessary. Refer
to Wheel Alignment Specifications.
Notice: Refer to Fastener Notice.
7. Tighten strut to knuckle nuts and bolts.
Tighten the nuts and bolts to 180 N.m (133 lb ft).
8. Install the wheel and tire assemblies.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Service and Repair > Measuring Wheel
Alignment > Page 2577
Alignment: Service and Repair Front Toe Adjustment
Front Toe Adjustment
1. Position and lock the steering wheel with the vehicle with the wheels in the straight forward
position.
2. Loosen both inner tie rod jam nuts.
Important: The inner tie rod must rotate freely from the boot seal surface. Do not allow the boot to
rotate.
3. Loosen the inner tie rod seal to boot surface. 4. Use a wrench on the tie rod flats to increase or
decrease the toe angle specifications. Refer to Wheel Alignment Specifications.
Notice: Refer to Fastener Notice.
5. Tighten the inner tie rod jam nuts.
Tighten the jam nuts to 60 N.m (44 lb ft).
6. Inspect the toe angle to ensure proper adjustment and adjust as necessary.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Service and Repair > Measuring Wheel
Alignment > Page 2578
Alignment: Service and Repair
Measuring Wheel Alignment
Measuring Wheel Alignment
Steering and vibration complaints are not always the result of improper alignment. One possible
cause is wheel and tire imbalance. Another possibility is tire lead due to worn or improperly
manufactured tires. Lead/pull is defined as follows: At a constant highway speed on a typical
straight road, lead/pull is the amount of effort required at the steering wheel to maintain the
vehicle's straight path. Lead is the vehicle deviation from a straight path on a level road without
pressure on the steering wheel. Refer to Radial Tire Lead/Pull Correction in order to determine if
the vehicle has a tire lead problem. See: Wheels and Tires/Testing and Inspection/Radial Tire
Lead/Pull Correction
Before performing any adjustment affecting wheel alignment, perform the following inspections and
adjustments in order to ensure correct alignment readings:
* Inspect the tires for the proper inflation and irregular tire wear. Refer to Vehicle Certification, Tire
Place Card, Anti-Theft, and Service Parts ID Label and Tire Diagnosis - Irregular or Premature
Wear.
* Inspect the runout of the wheels and the tires.
* Inspect the wheel bearings for backlash and excessive play.
* Inspect the ball joints and tie rod ends for looseness or wear.
* Inspect the control arms and stabilizer shaft for looseness or wear.
* Inspect the steering gear for looseness at the frame. Refer to Fastener Tightening Specifications.
* Inspect the struts/shock absorbers for wear, leaks, and any noticeable noises.
* Inspect the vehicle trim height.
* Inspect the steering wheel for excessive drag or poor return due to stiff or rusted linkage or
suspension components.
* Inspect the fuel level. The fuel tank should be full or the vehicle should have a compensating load
added.
Give consideration to excess loads, such as tool boxes, sample cases, etc. If normally carried in
the vehicle, these items should remain in the vehicle during alignment adjustments. Give
consideration also to the condition of the equipment being used for the alignment. Follow the
equipment manufacturer's instructions.
Satisfactory vehicle operation may occur over a wide range of alignment settings. However, if the
setting exceeds the service allowable specifications, correct the alignment to the service preferred
specifications. Refer to Wheel Alignment Specifications.
Perform the following steps in order to measure the front and rear alignment angles:
1. Install the alignment equipment according to the manufacturer's instructions. 2. Jounce the front
and the rear bumpers 3 times prior to checking the wheel alignment. 3. Measure the alignment
angles and record the readings.
Important: When performing adjustments to vehicles requiring a 4-wheel alignment, set the rear
wheel alignment angles first in order to obtain proper front alignment angles.
4. Adjust alignment angles to vehicle specification, if necessary. Refer to Wheel Alignment
Specifications.
Front Caster Adjustment
Front Caster Adjustment
The front caster is not adjustable. If the front caster angle is not within specifications, inspect for
suspension support misalignment or front suspension damage. Refer to Alignment Checking.
Replace any damaged suspension components as necessary. See: Body and Frame/Testing and
Inspection/Component Tests and General Diagnostics/Alignment Checking
Front Camber Adjustment
Front Camber Adjustment
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the wheel and tire
assemblies.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Service and Repair > Measuring Wheel
Alignment > Page 2579
3. Remove the strut to knuckle nuts and bolts. Discard the nuts and bolts.
4. If the strut has not been previously modified, perform the following procedure:
1. Disconnect the strut from the knuckle.
Important:
* Maximum outboard adjustment-(increased negative camber) 2.0 mm of outboard elongation or to
within 11.0 mm from outboard
edge of lower strut clevis bracket, whichever comes first
* Maximum inboard adjustment-(increased positive camber) 4.0 mm of inboard elongation
* If filing the strut, paint the exposed metal with primer.
If increasing negative camber, remove material from the outside of the lower strut hole.
2. If decreasing negative camber, remove material from the inside of the lower strut hole.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Service and Repair > Measuring Wheel
Alignment > Page 2580
5. Loosely install new strut to knuckle nuts and bolts.
6. Adjust the camber to specifications by moving the top of the wheel in or out as necessary. Refer
to Wheel Alignment Specifications.
Notice: Refer to Fastener Notice.
7. Tighten strut to knuckle nuts and bolts.
Tighten the nuts and bolts to 180 N.m (133 lb ft).
8. Install the wheel and tire assemblies.
Front Toe Adjustment
Front Toe Adjustment
1. Position and lock the steering wheel with the vehicle with the wheels in the straight forward
position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Service and Repair > Measuring Wheel
Alignment > Page 2581
2. Loosen both inner tie rod jam nuts.
Important: The inner tie rod must rotate freely from the boot seal surface. Do not allow the boot to
rotate.
3. Loosen the inner tie rod seal to boot surface. 4. Use a wrench on the tie rod flats to increase or
decrease the toe angle specifications. Refer to Wheel Alignment Specifications.
Notice: Refer to Fastener Notice.
5. Tighten the inner tie rod jam nuts.
Tighten the jam nuts to 60 N.m (44 lb ft).
6. Inspect the toe angle to ensure proper adjustment and adjust as necessary.
Rear Camber Adjustment
Rear Camber Adjustment
1. Loosen the upper control arm-to-frame fastener enough to allow movement.
Important: The frame of the vehicle is slotted, turning the cam nut will move the camber in to the
designated location.
2. Rotate the upper control arm-to-frame fastener in the direction necessary to the correct the
camber measurement. 3. Snug the upper control arm-to-frame fastener, do not tighten at this time.
4. Reinspect the rear camber specifications and adjust as necessary.
Notice: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Alignment > System Information > Service and Repair > Measuring Wheel
Alignment > Page 2582
5. Hold the nut and tighten the upper control arm-to-frame bolt.
Tighten the bolt to 110 N.m (81 lb ft).
6. Repeat the procedure for the other rear wheel.
Rear Toe Adjustment
Rear Toe Adjustment
1. Loosen the toe link-to-frame fastener enough to allow for movement.
Important: The frame of the vehicle is slotted, a cam nut is available for service if required.
2. Rotate the toe link cam nut in the direction necessary to correct the toe angle. 3. Snug the toe
link-to-frame fastener, do not tighten at this time. 4. Reinspect the rear toe specifications and adjust
as necessary.
Notice: Refer to Fastener Notice.
5. Hold the nut and tighten the link-to-frame fastener bolt.
Tighten the bolt to 110 N.m (81 lb ft).
6. Repeat the procedure for the other rear wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Fuel Pressure > System
Information > Specifications
Fuel Pressure: Specifications
Fuel Pressure (Key ON, Engine OFF)..................................................................................................
..............................................384-425 kPa (56-62 psi)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Fuel Pressure > System
Information > Specifications > Page 2587
Fuel Pressure: Service Precautions
Relieving Fuel Pressure Caution
Caution: Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel
system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a
small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Fuel Pressure > System
Information > System Diagnosis > Fuel Pressure Gage Installation and Removal
Fuel Pressure: Testing and Inspection Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Fuel Pressure > System
Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 2590
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Fuel Pressure > System
Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 2591
Fuel Pressure: Testing and Inspection Fuel System Diagnosis
FUEL SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
CIRCUIT/SYSTEM DESCRIPTION
The control module enables the fuel pump relay when the ignition switch is turned ON. The control
module will disable the fuel pump relay within 2 seconds unless the control module detects ignition
reference pulses. The control module continues to enable the fuel pump relay as long as ignition
reference pulses are detected. The control module disables the fuel pump relay within 2 seconds if
ignition reference pulses cease to be detected and the ignition remains ON.The fuel system is a
returnless on-demand design. The fuel pressure regulator is a part of the primary fuel tank module,
eliminating the need for a return pipe from the engine. A returnless fuel system reduces the internal
temperature of the fuel tank by not returning hot fuel from the engine to the fuel tank. Reducing the
internal temperature of the fuel tank results in lower evaporative emissions. An electric turbine style
fuel pump attaches to the primary fuel tank module inside the fuel tank. The fuel pump supplies
high pressure fuel through the fuel filter, past the fuel pressure regulator, and through the fuel feed
pipe to the fuel injection system. The fuel pressure regulator has a T-joint that diverts the needed
fuel to the fuel rail with the unused fuel dropping back into the reservoir of the primary fuel tank
module. The primary fuel tank module contains a reverse flow check valve. The check valve and
the fuel pressure regulator maintain fuel pressure in the fuel feed pipe and the fuel rail in order to
prevent long cranking times. The primary fuel tank module also contains a primary jet pump and a
secondary jet pump. Fuel pump flow loss, caused by vapor expulsion in the pump inlet chamber, is
diverted to the primary jet pump and the secondary jet pump through a restrictive orifice located on
the pump cover. The primary jet pump fills the reservoir of the primary fuel tank module. The
secondary jet pump creates a venturi action which causes the fuel to be drawn from the secondary
side of the fuel tank, through the fuel transfer pipe, to the primary side of the fuel tank.
CIRCUIT/SYSTEM VERIFICATION
IMPORTANT: Inspect the fuel system for damage or external leaks before proceeding.
- Verify that adequate fuel is in the fuel tank before proceeding.
- The fuel pump relay may need to be commanded ON a few times in order to obtain the highest
possible fuel pressure.
- Before proceeding with this test review the User Manual CH 48027-5 for Safety Information and
Instructions.
1. Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool. You should hear
the fuel pump turn ON and OFF.
- If the fuel pump does not operate, refer to Fuel Pump Electrical Circuit Diagnosis. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Component Tests and
General Diagnostics
2. Ignition OFF, all accessories OFF, install a CH-48027. 3. Ignition ON, engine OFF, command the
fuel pump relay ON with a scan tool. Verify the fuel pressure is between 384-425 kPa (56-62 psi)
and
does not decrease more than 34 kPa (5 psi) in 1 minute.
CIRCUIT/SYSTEM TESTING
1. IMPORTANT:
- The fuel pump relay may need to be commanded ON a few times in order to obtain the highest
possible fuel pressure.
- DO NOT start the engine.
Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool and observe the fuel
pressure gage while the fuel pump is operating. Verify the fuel pressure is between 384-425 kPa
(56-62 psi). If the fuel pressure is greater than the specified range, replace the fuel pump module.
- If the fuel pressure is less than the specified range, test, inspect, and repair the items listed
below. If all items test normal, replace the fuel pump module.
- Restricted fuel feed pipe
- Restricted or plugged strainer
- Inspect the harness connectors and the ground circuits of the fuel pump for poor connections.
2. Verify that the fuel pressure does not decrease more than 34 kPa (5 psi) in 1 minute.
1. If the fuel pressure decreases more than the specified value, perform the following procedure: 2.
Ignition OFF, relieve the fuel pressure. Refer to Fuel Pressure Relief. See: Fuel Filter/Fuel
Pressure Release/Service and Repair 3. Install the J 37287 between the fuel feed pipe and the fuel
rail. 4. Open the valve on the J 37287. 5. Ignition ON, command the fuel pump relay ON with a
scan tool and bleed the air from the CH-48027. 6. Command the fuel pump relay ON and then OFF
with a scan tool. 7. Close the valve on the J 37287. 8. Monitor the fuel pressure for 1 minute.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Fuel Pressure > System
Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 2592
- If the fuel pressure decreases more than 34 kPa (5 psi) within the specified time, locate and
replace the leaking fuel injector(s).
- If the fuel pressure does not decrease more than 34 kPa (5 psi) within the specified time, replace
the fuel pump module.
3. Relieve the fuel pressure to 69 kPa (10 psi). Verify that the fuel pressure does not decrease
more than 14 kPa (2 psi) in 5 minutes.
- If the fuel pressure decreases more than the specified value, replace the primary fuel pump
module.
4. Operate the vehicle within the conditions of the customer's concern while monitoring the fuel
pressure with the CH-48027. The fuel pressure
should not drop off during acceleration, cruise or hard cornering. If the fuel pressure drops off, test, inspect, and repair the items listed below. If all items test normal,
replace the primary fuel pump module.
- Restricted fuel feed pipe
- Restricted or plugged strainer
- Inspect the harness connectors and the ground circuits of the fuel pump for poor connections
5. If the fuel system tests normal, refer to Symptoms - Computers and Control Systems. See:
Powertrain Management/Computers and Control
Systems/Testing and Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine
Controls
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Fuel Hose/Pipes Replacement - Chassis
- Fuel Injector Replacement
- Fuel Hose/Pipes Replacement - Engine Compartment
- Primary Fuel Tank Module Replacement See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests and Procedures
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Idle Speed > System
Information > Specifications
Idle Speed: Specifications
Information not supplied by the manufacturer.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Air Cleaner Housing > Air
Cleaner Fresh Air Duct/Hose > Component Information > Service and Repair
Air Cleaner Fresh Air Duct/Hose: Service and Repair
AIR CLEANER INLET DUCT REPLACEMENT
REMOVAL PROCEDURE
1. Loosen the clamps at both ends of the air cleaner intake duct. 2. Remove the positive crankcase
ventilation (PCV) fresh air pipe from the air cleaner intake duct. 3. Remove the air cleaner intake
duct from the mass air flow (MAF) sensor and throttle body.
INSTALLATION PROCEDURE
1. Install the air cleaner intake duct to the MAF sensor and throttle body. 2. Install the PCV fresh air
pipe to the air cleaner intake duct.
3. NOTE: Refer to Fastener Notice.
Tighten the clamps at both ends of the air cleaner intake duct.
Tighten the clamps to 4 N.m (35 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > Customer Interest for Air Filter Element: >
04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON
Air Filter Element: Customer Interest Engine, A/T - Shift/Driveability Concerns/MIL ON
Bulletin No.: 04-07-30-013B
Date: February 01, 2007
INFORMATION
Subject: Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon
(SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air
Filter
Models: 2007 and Prior GM Cars and Light Duty Trucks 2007 and Prior Saturn Models 2003-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 04-07-30-013A (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
Service Engine Soon (SES) light on
Transmission shift concerns, slipping and damaged clutch(es) or band(s)
Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF)
sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from
the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an
aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared
to a like vehicle with an OEM air box and filter under the same driving conditions to verify the
concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and
the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with
oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not
considered to be warrantable repair items.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > Customer Interest for Air Filter Element: >
04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON > Page 2608
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Filter Element: >
04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON
Air Filter Element: All Technical Service Bulletins Engine, A/T - Shift/Driveability Concerns/MIL ON
Bulletin No.: 04-07-30-013B
Date: February 01, 2007
INFORMATION
Subject: Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon
(SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air
Filter
Models: 2007 and Prior GM Cars and Light Duty Trucks 2007 and Prior Saturn Models 2003-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 04-07-30-013A (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
Service Engine Soon (SES) light on
Transmission shift concerns, slipping and damaged clutch(es) or band(s)
Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF)
sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from
the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an
aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared
to a like vehicle with an OEM air box and filter under the same driving conditions to verify the
concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and
the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with
oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not
considered to be warrantable repair items.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Filter Element: >
04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON > Page 2614
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > Page 2615
Air Filter Element: Service and Repair
AIR CLEANER ELEMENT REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Release the clamps (2) on the side of the air cleaner assembly. 4. Remove the air cleaner
assembly lid (1) by tilting to release the lid from the lower housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > Page 2616
5. Remove the air cleaner element (2) from the lower housing (1).
INSTALLATION PROCEDURE
1. Install the air cleaner element (2) into the lower housing (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > Page 2617
2. Install the air cleaner assembly lid (1) by first engaging the hinge then lower the cover into the
closed position. 3. Fasten the clamps (2) on the side of the air cleaner assembly.
4. Connect the MAF sensor electrical connector. 5. Install the air cleaner intake duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Fuel Filter > Fuel Pressure
Release > System Information > Service and Repair > Fuel Pressure Relief
Fuel Pressure Release: Service and Repair Fuel Pressure Relief
FUEL PRESSURE RELIEF
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
WITH CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Remove the engine cover, if required. 2. Loosen the fuel fill cap in order to relieve the fuel tank
vapor pressure. 3. Remove the fuel rail service port cap.
4. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel will
absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
5. Connect the CH-48027-3 (4) to the fuel rail service port. 6. Connect the CH-48027-2 (2) to the
CH-48027-3 (4). 7. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 8.
Open the valve on the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 9. Close the
valve on the CH-48027-2 (2).
10. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
IMPORTANT: If relieving the fuel pressure for the fuel pressure gage installation and removal, it is
NOT necessary to proceed with the following steps.
11. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Fuel Filter > Fuel Pressure
Release > System Information > Service and Repair > Fuel Pressure Relief > Page 2623
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-2 (2) from the CH-48027-3 (4).
12. Disconnect the CH-48027-3 (4) from the fuel rail service port. 13. Remove the shop towel from
around the fuel rail service port, and place in an approved gasoline container. 14. Install the fuel rail
service port cap. 15. Install the engine cover, if required. 16. Tighten the fuel fill cap.
WITHOUT CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure. 2. Remove the engine
cover, if required. 3. Remove the fuel rail service port cap. 4. Wrap a shop towel around the fuel rail
service port and using a small flat bladed tool, depress (open) the fuel rail test port valve. 5.
Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container. 6. Install the fuel rail service port cap. 7. Install the engine cover, if required. 8. Tighten
the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Fuel Filter > Fuel Pressure
Release > System Information > Service and Repair > Fuel Pressure Relief > Page 2624
Fuel Pressure Release: Service and Repair Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Fuel Filter > Fuel Pressure
Release > System Information > Service and Repair > Fuel Pressure Relief > Page 2625
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Ignition Cable > Component
Information > Specifications
Ignition Cable: Specifications
Spark Plug Wire Resistance.................................................................................................................
......................4,018 ohm per meter (1,225 ohm per ft)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Ignition Cable > Component
Information > Specifications > Page 2629
Ignition Cable: Testing and Inspection
SPARK PLUG WIRE INSPECTION
Spark plug wire integrity is vital for proper engine operation. A thorough inspection will be
necessary to accurately identify conditions that may affect engine operation. Refer to the list below
for items to be inspected.
1. Inspect for correct routing of the spark plug wires. Improper routing may cause cross-firing. 2.
Inspect each wire for any signs of cracks or splits in the wire. 3. Inspect each boot for the following
conditions:
- Tearing
- Piercing
- Arcing
- Carbon tracking
- Corroded terminal\
If corrosion, carbon tracking, or arcing are indicated on a spark plug wire boot or terminal, both the
wire and the component connected to the wire should be replaced.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Ignition Cable > Component
Information > Specifications > Page 2630
Ignition Cable: Service and Repair
SPARK PLUG WIRE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. NOTE: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug
boot only. Do not pull on the spark plug wire
or the wire could be damaged.
Remove the spark plug wires (1) from the left side spark plugs.
3. Remove the spark plug wires from the retaining clips (2).
4. Remove the spark plug wires (1) from the right side spark plugs. 5. Remove the spark plug wires
from the retaining clips (2). 6. Remove the spark plug wires from the ignition coil/control module. 7.
Remove the spark plug wires from the engine. 8. If you are replacing the spark plug wires, transfer
any of the following components:
- Boot heat shields
- Spark plug wire conduit
- Spark plug wire retaining clips
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Ignition Cable > Component
Information > Specifications > Page 2631
INSTALLATION PROCEDURE
1. Install the spark plug wires (1) to the ignition coil/control module. 2. Install the spark plug wires
(1) to the right side spark plugs. 3. Install the spark plug wires to the retaining clips (2).
4. Install the spark plug wires (1) to the left side spark plugs. 5. Install the spark plug wires to the
retaining clips (2). 6. Install the injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > Recalls: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty Extension
Technical Service Bulletin # 10250 Date: 110131
Campaign - Spark Plug Wire Warranty Extension
SPECIAL COVERAGE
Bulletin No.: 10250
Date: January 31, 2011
Subject: 10250 - Special Coverage Adjustment - Spark Plug Wire Warranty Extension
Models:
2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped with a 3.4L Engine (LNJ) 2008
Chevrolet Express, Silverado 2008 GMC Savana, Sierra Equipped with 4.3L Engine (LU3)
Condition
Some customers of 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles
equipped with a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra
vehicles equipped with a 4.3L engine (LU3) may comment about rough engine operation and the
illumination of the Check Engine Light. This may be caused by spark plug wire boots that do not
provide a sufficiently robust dielectric seal to withstand the high voltage required to fire the spark
plugs.
Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000
miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in
service, regardless of ownership. Dealers are to replace all spark plug wires and, if necessary, the
spark plug. The repairs will be made at no charge to the customer. For vehicles covered by Vehicle
Service Contracts, all eligible claims with repair orders on or after January 5, 2011, are covered by
this special coverage and must be submitted using the labor operation codes provided with this
bulletin. Claims with repair orders prior to January 5, 2011, must be submitted to the Service
Contract provider.
Vehicles Involved
Involved are 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with
a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra vehicles
equipped with a 4.3L engine (LU3).
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate
Vehicle History (GMVIS2) Application in the Applicable Warranties section. Dealership technicians
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs.
Parts Information
Parts required to complete this special coverage are to be obtained from General Motors Customer
Care and Aftersales (GMCC&A;).
* Not eligible for RIM initially for US and Canada, until sufficient inventory levels are reached.
Service Procedure
1. Connect a scan tool and start the engine. 2. Determine if any cylinders have a misfire condition.
- If a misfire condition is present or diagnostic trouble codes (DTCs) PO300-PO306 are current or
set in history, remove all of the spark plug wires and replace them with new spark plug wire set.
Refer to Spark Plug Wire Replacement in SI. Proceed to Step 3.
- If a misfire condition is NOT present in any cylinder, do NOT replace the spark plug wires. Refer
to the appropriate diagnostic information in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > Recalls: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty Extension
> Page 2640
SI to determine the cause of the problem. Repairs that are not related to this Special Coverage
must be billed as warranty, customer pay, or goodwill.
3. Remove the spark plug from the misfiring cylinder. The spark plug should have evidence of
carbon tracking (1). Replace the spark plug that shows
evidence of carbon tracking. Refer to Spark Plug Replacement in SI.
4. Clear DTCs using a scan tool.
Customer Reimbursement - For US
All customer requests for reimbursement for previous repairs for the special coverage condition will
be handled by the Customer Assistance Center, not by dealers.
A General Motors Customer Reimbursement Procedure and Claim Form is included with the
customer letter.
Important Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific
procedures regarding customer reimbursement and the form.
Customer Reimbursement - For Canada and Export
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer prior to or by January 31, 2012. Repairs must have
occurred within the 10 years of the date the vehicle was originally placed in service, or 193,000
kilometers, whichever occurs first.
When a customer requests reimbursement, they must provide the following:
- Proof of ownership at time of repair.
- Original paid receipt confirming the amount of unreimbursed repair expense(s) (including Service
Contract deductibles), a description of the repair, and the person or entity performing the repair.
If the work was done by someone other than a GM dealership, the amount of reimbursement will
be limited to the amount that the repair would have cost GM to have it completed by a GM
dealership.
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Warranty Transaction Information
Submit a transaction using the table below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > Recalls: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty Extension
> Page 2641
* The amount identified in "Net Item" should represent the dollar amount reimbursed to the
customer.
Customer Notification
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
Disclaimer
Owner Letter
Owner Letter
January 2011
Dear General Motors Customer:
As the owner of a 2007-2009 model year Chevrolet Equinox or Pontiac Torrent vehicle, or a 2008
Chevrolet Express, Silverado; GMC Savana or Sierra vehicle, your satisfaction with our product is
very important to us.
This letter is intended to make you aware that some 2007-2009 model year Chevrolet Equinox and
Pontiac Torrent vehicles, and some 2008 Chevrolet Express, Silverado; GMC Savana, and Sierra
vehicles may exhibit rough engine operation and the illumination of the Check Engine Light. This
may be caused by spark plug wire boots that do not provide a sufficiently robust dielectric seal to
withstand the high voltage required to fire the spark plugs.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your
vehicle has the condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the spark
plug wires. If this condition occurs on your 2007-2009 model year Chevrolet Equinox or Pontiac
Torrent vehicle, or 2008 Chevrolet Express, Silverado; GMC Savana or Sierra vehicle within 10
years of the date your vehicle was originally placed in service or 120,000 miles (193.000 km),
whichever occurs first, the condition will be repaired for you at no charge. Diagnosis or repair for
conditions other than the condition described above is not covered under this special coverage
program.
What You Should Do: If you believe that your vehicle has the condition described above, repairs
and adjustments qualifying under this special coverage must be performed by a General Motors
dealer. You may want to contact your GM dealer to find out how long they will need to have your
vehicle so that you may schedule the appointment at a time that is convenient for you. This will also
allow your dealer to order parts if they are not already in stock. Keep this letter with your other
important glove box literature for future reference.
Reimbursement: The enclosed form explains what reimbursement is available and how to request
reimbursement if you have paid for repairs for the special coverage condition. Your request for
reimbursement, including the information and documents mentioned on the enclosed form, must be
received by GM by January 31, 2012. If you have any questions or need any assistance to better
understand related repairs, please contact your dealer.
If you have questions related to a potential reimbursement, please contact the appropriate
Customer Assistance Center at the number listed below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > Recalls: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty Extension
> Page 2642
We are sorry for any inconvenience you may experience; however we have taken this action in the
interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
10250
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 08-09-41-002F > Jun > 10 > Recalls
for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty Extension
Technical Service Bulletin # 10250 Date: 110131
Campaign - Spark Plug Wire Warranty Extension
SPECIAL COVERAGE
Bulletin No.: 10250
Date: January 31, 2011
Subject: 10250 - Special Coverage Adjustment - Spark Plug Wire Warranty Extension
Models:
2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped with a 3.4L Engine (LNJ) 2008
Chevrolet Express, Silverado 2008 GMC Savana, Sierra Equipped with 4.3L Engine (LU3)
Condition
Some customers of 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles
equipped with a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra
vehicles equipped with a 4.3L engine (LU3) may comment about rough engine operation and the
illumination of the Check Engine Light. This may be caused by spark plug wire boots that do not
provide a sufficiently robust dielectric seal to withstand the high voltage required to fire the spark
plugs.
Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000
miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in
service, regardless of ownership. Dealers are to replace all spark plug wires and, if necessary, the
spark plug. The repairs will be made at no charge to the customer. For vehicles covered by Vehicle
Service Contracts, all eligible claims with repair orders on or after January 5, 2011, are covered by
this special coverage and must be submitted using the labor operation codes provided with this
bulletin. Claims with repair orders prior to January 5, 2011, must be submitted to the Service
Contract provider.
Vehicles Involved
Involved are 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with
a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra vehicles
equipped with a 4.3L engine (LU3).
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate
Vehicle History (GMVIS2) Application in the Applicable Warranties section. Dealership technicians
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs.
Parts Information
Parts required to complete this special coverage are to be obtained from General Motors Customer
Care and Aftersales (GMCC&A;).
* Not eligible for RIM initially for US and Canada, until sufficient inventory levels are reached.
Service Procedure
1. Connect a scan tool and start the engine. 2. Determine if any cylinders have a misfire condition.
- If a misfire condition is present or diagnostic trouble codes (DTCs) PO300-PO306 are current or
set in history, remove all of the spark plug wires and replace them with new spark plug wire set.
Refer to Spark Plug Wire Replacement in SI. Proceed to Step 3.
- If a misfire condition is NOT present in any cylinder, do NOT replace the spark plug wires. Refer
to the appropriate diagnostic information in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 08-09-41-002F > Jun > 10 > Recalls
for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty Extension > Page 2652
SI to determine the cause of the problem. Repairs that are not related to this Special Coverage
must be billed as warranty, customer pay, or goodwill.
3. Remove the spark plug from the misfiring cylinder. The spark plug should have evidence of
carbon tracking (1). Replace the spark plug that shows
evidence of carbon tracking. Refer to Spark Plug Replacement in SI.
4. Clear DTCs using a scan tool.
Customer Reimbursement - For US
All customer requests for reimbursement for previous repairs for the special coverage condition will
be handled by the Customer Assistance Center, not by dealers.
A General Motors Customer Reimbursement Procedure and Claim Form is included with the
customer letter.
Important Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific
procedures regarding customer reimbursement and the form.
Customer Reimbursement - For Canada and Export
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer prior to or by January 31, 2012. Repairs must have
occurred within the 10 years of the date the vehicle was originally placed in service, or 193,000
kilometers, whichever occurs first.
When a customer requests reimbursement, they must provide the following:
- Proof of ownership at time of repair.
- Original paid receipt confirming the amount of unreimbursed repair expense(s) (including Service
Contract deductibles), a description of the repair, and the person or entity performing the repair.
If the work was done by someone other than a GM dealership, the amount of reimbursement will
be limited to the amount that the repair would have cost GM to have it completed by a GM
dealership.
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Warranty Transaction Information
Submit a transaction using the table below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 08-09-41-002F > Jun > 10 > Recalls
for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty Extension > Page 2653
* The amount identified in "Net Item" should represent the dollar amount reimbursed to the
customer.
Customer Notification
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
Disclaimer
Owner Letter
Owner Letter
January 2011
Dear General Motors Customer:
As the owner of a 2007-2009 model year Chevrolet Equinox or Pontiac Torrent vehicle, or a 2008
Chevrolet Express, Silverado; GMC Savana or Sierra vehicle, your satisfaction with our product is
very important to us.
This letter is intended to make you aware that some 2007-2009 model year Chevrolet Equinox and
Pontiac Torrent vehicles, and some 2008 Chevrolet Express, Silverado; GMC Savana, and Sierra
vehicles may exhibit rough engine operation and the illumination of the Check Engine Light. This
may be caused by spark plug wire boots that do not provide a sufficiently robust dielectric seal to
withstand the high voltage required to fire the spark plugs.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your
vehicle has the condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the spark
plug wires. If this condition occurs on your 2007-2009 model year Chevrolet Equinox or Pontiac
Torrent vehicle, or 2008 Chevrolet Express, Silverado; GMC Savana or Sierra vehicle within 10
years of the date your vehicle was originally placed in service or 120,000 miles (193.000 km),
whichever occurs first, the condition will be repaired for you at no charge. Diagnosis or repair for
conditions other than the condition described above is not covered under this special coverage
program.
What You Should Do: If you believe that your vehicle has the condition described above, repairs
and adjustments qualifying under this special coverage must be performed by a General Motors
dealer. You may want to contact your GM dealer to find out how long they will need to have your
vehicle so that you may schedule the appointment at a time that is convenient for you. This will also
allow your dealer to order parts if they are not already in stock. Keep this letter with your other
important glove box literature for future reference.
Reimbursement: The enclosed form explains what reimbursement is available and how to request
reimbursement if you have paid for repairs for the special coverage condition. Your request for
reimbursement, including the information and documents mentioned on the enclosed form, must be
received by GM by January 31, 2012. If you have any questions or need any assistance to better
understand related repairs, please contact your dealer.
If you have questions related to a potential reimbursement, please contact the appropriate
Customer Assistance Center at the number listed below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 08-09-41-002F > Jun > 10 > Recalls
for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty Extension > Page 2654
We are sorry for any inconvenience you may experience; however we have taken this action in the
interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
10250
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark
Plug Wire Warranty Extension
Technical Service Bulletin # 10250 Date: 110131
Campaign - Spark Plug Wire Warranty Extension
SPECIAL COVERAGE
Bulletin No.: 10250
Date: January 31, 2011
Subject: 10250 - Special Coverage Adjustment - Spark Plug Wire Warranty Extension
Models:
2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped with a 3.4L Engine (LNJ) 2008
Chevrolet Express, Silverado 2008 GMC Savana, Sierra Equipped with 4.3L Engine (LU3)
Condition
Some customers of 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles
equipped with a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra
vehicles equipped with a 4.3L engine (LU3) may comment about rough engine operation and the
illumination of the Check Engine Light. This may be caused by spark plug wire boots that do not
provide a sufficiently robust dielectric seal to withstand the high voltage required to fire the spark
plugs.
Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000
miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in
service, regardless of ownership. Dealers are to replace all spark plug wires and, if necessary, the
spark plug. The repairs will be made at no charge to the customer. For vehicles covered by Vehicle
Service Contracts, all eligible claims with repair orders on or after January 5, 2011, are covered by
this special coverage and must be submitted using the labor operation codes provided with this
bulletin. Claims with repair orders prior to January 5, 2011, must be submitted to the Service
Contract provider.
Vehicles Involved
Involved are 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with
a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra vehicles
equipped with a 4.3L engine (LU3).
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate
Vehicle History (GMVIS2) Application in the Applicable Warranties section. Dealership technicians
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs.
Parts Information
Parts required to complete this special coverage are to be obtained from General Motors Customer
Care and Aftersales (GMCC&A;).
* Not eligible for RIM initially for US and Canada, until sufficient inventory levels are reached.
Service Procedure
1. Connect a scan tool and start the engine. 2. Determine if any cylinders have a misfire condition.
- If a misfire condition is present or diagnostic trouble codes (DTCs) PO300-PO306 are current or
set in history, remove all of the spark plug wires and replace them with new spark plug wire set.
Refer to Spark Plug Wire Replacement in SI. Proceed to Step 3.
- If a misfire condition is NOT present in any cylinder, do NOT replace the spark plug wires. Refer
to the appropriate diagnostic information in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark
Plug Wire Warranty Extension > Page 2665
SI to determine the cause of the problem. Repairs that are not related to this Special Coverage
must be billed as warranty, customer pay, or goodwill.
3. Remove the spark plug from the misfiring cylinder. The spark plug should have evidence of
carbon tracking (1). Replace the spark plug that shows
evidence of carbon tracking. Refer to Spark Plug Replacement in SI.
4. Clear DTCs using a scan tool.
Customer Reimbursement - For US
All customer requests for reimbursement for previous repairs for the special coverage condition will
be handled by the Customer Assistance Center, not by dealers.
A General Motors Customer Reimbursement Procedure and Claim Form is included with the
customer letter.
Important Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific
procedures regarding customer reimbursement and the form.
Customer Reimbursement - For Canada and Export
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer prior to or by January 31, 2012. Repairs must have
occurred within the 10 years of the date the vehicle was originally placed in service, or 193,000
kilometers, whichever occurs first.
When a customer requests reimbursement, they must provide the following:
- Proof of ownership at time of repair.
- Original paid receipt confirming the amount of unreimbursed repair expense(s) (including Service
Contract deductibles), a description of the repair, and the person or entity performing the repair.
If the work was done by someone other than a GM dealership, the amount of reimbursement will
be limited to the amount that the repair would have cost GM to have it completed by a GM
dealership.
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Warranty Transaction Information
Submit a transaction using the table below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark
Plug Wire Warranty Extension > Page 2666
* The amount identified in "Net Item" should represent the dollar amount reimbursed to the
customer.
Customer Notification
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
Disclaimer
Owner Letter
Owner Letter
January 2011
Dear General Motors Customer:
As the owner of a 2007-2009 model year Chevrolet Equinox or Pontiac Torrent vehicle, or a 2008
Chevrolet Express, Silverado; GMC Savana or Sierra vehicle, your satisfaction with our product is
very important to us.
This letter is intended to make you aware that some 2007-2009 model year Chevrolet Equinox and
Pontiac Torrent vehicles, and some 2008 Chevrolet Express, Silverado; GMC Savana, and Sierra
vehicles may exhibit rough engine operation and the illumination of the Check Engine Light. This
may be caused by spark plug wire boots that do not provide a sufficiently robust dielectric seal to
withstand the high voltage required to fire the spark plugs.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your
vehicle has the condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the spark
plug wires. If this condition occurs on your 2007-2009 model year Chevrolet Equinox or Pontiac
Torrent vehicle, or 2008 Chevrolet Express, Silverado; GMC Savana or Sierra vehicle within 10
years of the date your vehicle was originally placed in service or 120,000 miles (193.000 km),
whichever occurs first, the condition will be repaired for you at no charge. Diagnosis or repair for
conditions other than the condition described above is not covered under this special coverage
program.
What You Should Do: If you believe that your vehicle has the condition described above, repairs
and adjustments qualifying under this special coverage must be performed by a General Motors
dealer. You may want to contact your GM dealer to find out how long they will need to have your
vehicle so that you may schedule the appointment at a time that is convenient for you. This will also
allow your dealer to order parts if they are not already in stock. Keep this letter with your other
important glove box literature for future reference.
Reimbursement: The enclosed form explains what reimbursement is available and how to request
reimbursement if you have paid for repairs for the special coverage condition. Your request for
reimbursement, including the information and documents mentioned on the enclosed form, must be
received by GM by January 31, 2012. If you have any questions or need any assistance to better
understand related repairs, please contact your dealer.
If you have questions related to a potential reimbursement, please contact the appropriate
Customer Assistance Center at the number listed below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark
Plug Wire Warranty Extension > Page 2667
We are sorry for any inconvenience you may experience; however we have taken this action in the
interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
10250
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension
Technical Service Bulletin # 10250 Date: 110131
Campaign - Spark Plug Wire Warranty Extension
SPECIAL COVERAGE
Bulletin No.: 10250
Date: January 31, 2011
Subject: 10250 - Special Coverage Adjustment - Spark Plug Wire Warranty Extension
Models:
2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped with a 3.4L Engine (LNJ) 2008
Chevrolet Express, Silverado 2008 GMC Savana, Sierra Equipped with 4.3L Engine (LU3)
Condition
Some customers of 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles
equipped with a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra
vehicles equipped with a 4.3L engine (LU3) may comment about rough engine operation and the
illumination of the Check Engine Light. This may be caused by spark plug wire boots that do not
provide a sufficiently robust dielectric seal to withstand the high voltage required to fire the spark
plugs.
Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000
miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in
service, regardless of ownership. Dealers are to replace all spark plug wires and, if necessary, the
spark plug. The repairs will be made at no charge to the customer. For vehicles covered by Vehicle
Service Contracts, all eligible claims with repair orders on or after January 5, 2011, are covered by
this special coverage and must be submitted using the labor operation codes provided with this
bulletin. Claims with repair orders prior to January 5, 2011, must be submitted to the Service
Contract provider.
Vehicles Involved
Involved are 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with
a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra vehicles
equipped with a 4.3L engine (LU3).
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate
Vehicle History (GMVIS2) Application in the Applicable Warranties section. Dealership technicians
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs.
Parts Information
Parts required to complete this special coverage are to be obtained from General Motors Customer
Care and Aftersales (GMCC&A;).
* Not eligible for RIM initially for US and Canada, until sufficient inventory levels are reached.
Service Procedure
1. Connect a scan tool and start the engine. 2. Determine if any cylinders have a misfire condition.
- If a misfire condition is present or diagnostic trouble codes (DTCs) PO300-PO306 are current or
set in history, remove all of the spark plug wires and replace them with new spark plug wire set.
Refer to Spark Plug Wire Replacement in SI. Proceed to Step 3.
- If a misfire condition is NOT present in any cylinder, do NOT replace the spark plug wires. Refer
to the appropriate diagnostic information in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension > Page 2673
SI to determine the cause of the problem. Repairs that are not related to this Special Coverage
must be billed as warranty, customer pay, or goodwill.
3. Remove the spark plug from the misfiring cylinder. The spark plug should have evidence of
carbon tracking (1). Replace the spark plug that shows
evidence of carbon tracking. Refer to Spark Plug Replacement in SI.
4. Clear DTCs using a scan tool.
Customer Reimbursement - For US
All customer requests for reimbursement for previous repairs for the special coverage condition will
be handled by the Customer Assistance Center, not by dealers.
A General Motors Customer Reimbursement Procedure and Claim Form is included with the
customer letter.
Important Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific
procedures regarding customer reimbursement and the form.
Customer Reimbursement - For Canada and Export
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer prior to or by January 31, 2012. Repairs must have
occurred within the 10 years of the date the vehicle was originally placed in service, or 193,000
kilometers, whichever occurs first.
When a customer requests reimbursement, they must provide the following:
- Proof of ownership at time of repair.
- Original paid receipt confirming the amount of unreimbursed repair expense(s) (including Service
Contract deductibles), a description of the repair, and the person or entity performing the repair.
If the work was done by someone other than a GM dealership, the amount of reimbursement will
be limited to the amount that the repair would have cost GM to have it completed by a GM
dealership.
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Warranty Transaction Information
Submit a transaction using the table below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension > Page 2674
* The amount identified in "Net Item" should represent the dollar amount reimbursed to the
customer.
Customer Notification
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
Disclaimer
Owner Letter
Owner Letter
January 2011
Dear General Motors Customer:
As the owner of a 2007-2009 model year Chevrolet Equinox or Pontiac Torrent vehicle, or a 2008
Chevrolet Express, Silverado; GMC Savana or Sierra vehicle, your satisfaction with our product is
very important to us.
This letter is intended to make you aware that some 2007-2009 model year Chevrolet Equinox and
Pontiac Torrent vehicles, and some 2008 Chevrolet Express, Silverado; GMC Savana, and Sierra
vehicles may exhibit rough engine operation and the illumination of the Check Engine Light. This
may be caused by spark plug wire boots that do not provide a sufficiently robust dielectric seal to
withstand the high voltage required to fire the spark plugs.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your
vehicle has the condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the spark
plug wires. If this condition occurs on your 2007-2009 model year Chevrolet Equinox or Pontiac
Torrent vehicle, or 2008 Chevrolet Express, Silverado; GMC Savana or Sierra vehicle within 10
years of the date your vehicle was originally placed in service or 120,000 miles (193.000 km),
whichever occurs first, the condition will be repaired for you at no charge. Diagnosis or repair for
conditions other than the condition described above is not covered under this special coverage
program.
What You Should Do: If you believe that your vehicle has the condition described above, repairs
and adjustments qualifying under this special coverage must be performed by a General Motors
dealer. You may want to contact your GM dealer to find out how long they will need to have your
vehicle so that you may schedule the appointment at a time that is convenient for you. This will also
allow your dealer to order parts if they are not already in stock. Keep this letter with your other
important glove box literature for future reference.
Reimbursement: The enclosed form explains what reimbursement is available and how to request
reimbursement if you have paid for repairs for the special coverage condition. Your request for
reimbursement, including the information and documents mentioned on the enclosed form, must be
received by GM by January 31, 2012. If you have any questions or need any assistance to better
understand related repairs, please contact your dealer.
If you have questions related to a potential reimbursement, please contact the appropriate
Customer Assistance Center at the number listed below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension > Page 2675
We are sorry for any inconvenience you may experience; however we have taken this action in the
interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
10250
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > Page 2676
Spark Plug: Specifications
Spark Plug Gap....................................................................................................................................
.........................................................1.52 mm (0.60 in)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > Page 2677
Spark Plug: Testing and Inspection
SPARK PLUG INSPECTION
SPARK PLUG USAGE
- Ensure that the correct spark plug is installed. An incorrect spark plug causes driveability
conditions. Refer to Ignition System Specifications for the correct spark plug.
- Ensure that the spark plug has the correct heat range. An incorrect heat range causes the
following conditions: Spark plug fouling-Colder plug
- Pre-ignition causing spark plug and/or engine damage-Hotter plug
SPARK PLUG INSPECTION
- Inspect the terminal post (1) for damage. Inspect for a bent or broken terminal post (1).
- Test for a loose terminal post (1) by twisting and pulling the post. The terminal post (1) should
NOT move.
- Inspect the insulator (2) for flashover or carbon tracking, soot. This is caused by the electrical
charge traveling across the insulator (2) between the terminal post (1) and ground. Inspect for the
following conditions: Inspect the spark plug boot for damage.
- Inspect the spark plug recess area of the cylinder head for moisture, such as oil, coolant, or
water. A spark plug boot that is saturated causes arcing to ground.
- Inspect the insulator (2) for cracks. All or part of the electrical charge may arc through the crack
instead of the electrodes (3, 4).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > Page 2678
- Inspect for evidence of improper arcing. Measure the gap between the center electrode (4) and the side electrode (3) terminals. An
excessively wide electrode gap can prevent correct spark plug operation.
- Inspect for the correct spark plug torque. Insufficient torque can prevent correct spark plug
operation. An over torqued spark plug, causes the insulator (2) to crack.
- Inspect for signs of tracking that occurred near the insulator tip instead of the center electrode (4).
- Inspect for a broken or worn side electrode (3).
- Inspect for a broken, worn, or loose center electrode (4) by shaking the spark plug. A rattling sound indicates internal damage.
- A loose center electrode (4) reduces the spark intensity.
- Inspect for bridged electrodes (3, 4). Deposits on the electrodes (3, 4) reduce or eliminates the
gap.
- Inspect for worn or missing platinum pads on the electrodes (3, 4), if equipped.
- Inspect for excessive fouling.
- Inspect the spark plug recess area of the cylinder head for debris. Dirty or damaged threads can
cause the spark plug not to seat correctly during installation.
SPARK PLUG VISUAL INSPECTION
- Normal operation-Brown to grayish-tan with small amounts of white powdery deposits are normal
combustion by-products from fuels with additives.
- Carbon fouled-Dry, fluffy, black carbon or soot caused by the following conditions: Rich fuel mixtures Leaking fuel injectors
- Excessive fuel pressure
- Restricted air filter element
- Incorrect combustion
- Reduced ignition system voltage output Weak coils
- Worn ignition wires
- Incorrect spark plug gap
- Excessive idling or slow speeds under light loads can keep spark plug temperatures so low that
normal combustion deposits may not burn off.
- Deposit fouling-Oil, coolant, or additives that include substances such as silicone, very white
coating, reduces the spark intensity. Most powdery deposits will not effect spark intensity unless
they form into a glazing over the electrode.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > Page 2679
Spark Plug: Service and Repair
SPARK PLUG REPLACEMENT
REMOVAL PROCEDURE
NOTE: Observe the following service precautions:
- Allow the engine to cool before removing the spark plugs. Attempting to remove spark plugs from
a hot engine can cause the spark plugs to seize. This can damage the cylinder head threads.
- Clean the spark plug recess area before removing the spark plug. Failure to do so can result in
engine damage due to dirt or foreign material entering the cylinder head, or in contamination of the
cylinder head threads. Contaminated threads may prevent proper seating of the new spark plug.
- Use only the spark plugs specified for use in the vehicle. Do not install spark plugs that are either
hotter or colder than those specified for the vehicle. Installing spark plugs of another type can
severely damage the engine.
1. Remove the spark plug wires from the spark plugs.
2. Remove the spark plugs (1) from the cylinder head.
INSTALLATION PROCEDURE
1. NOTE: It is important to check the gap of all new and reconditioned spark plugs before
installation. Pre-set gaps may have changed during
handling. Use a round wire feeler gauge to be sure of an accurate check, particularly on used
plugs. Installing plugs with the wrong gap can cause poor engine performance and may even
damage the engine.
Gap the spark plugs to the specifications. Refer to Ignition System Specifications.
2. NOTE:
- Be sure plug threads smoothly into cylinder head and is fully seated. Use a thread chaser if
necessary to clean threads in cylinder head. Cross-threading or failing to fully seat spark plug can
cause overheating of plug, exhaust blow-by, or thread damage. Follow the recommended torque
specifications carefully. Over or under-tightening can also cause severe damage to engine or spark
plug.
- Refer to Component Fastener Tightening Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > 06-09-41-006D > Dec > 07 >
Component Information > Technical Service Bulletins > Page 2680
IMPORTANT: ONLY when the cylinder head is replaced with a NEW cylinder head, the FIRST time
the spark plugs are installed, tighten the spark plugs to 20 N.m (15 lb ft). All subsequent tightening
of the spark plugs, tighten to 15 N.m (11 lb ft).
Install the spark plugs to the cylinder head.
Tighten the spark plugs to 15 N.m (11 lb ft).
3. Install the spark plug wires to the spark plugs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Spark Plug: > Page 2681
Tire Pressure Sensor: Technical Service Bulletins Tire Monitor System - TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs
Tire Pressure Sensor: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs
> Page 2685
Tire Pressure Sensor: Technical Service Bulletins Tire Monitor System - TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs
> Page 2686
Tire Pressure Sensor: Technical Service Bulletins Tires - Minimizing Damage to TPM Sensors
INFORMATION
Bulletin No.: 08-03-10-007
Date: May 16, 2008
Subject: Minimizing Damage to Tire Pressure Monitor (TPM) Sensors During Tire
Mounting/Dismounting
Models: 2009 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2009 and
Prior HUMMER H2, H3 2009 and Prior Saab 9-7X
with Wheel Mounted Tire Pressure Sensors
Minimizing Damage To TPM Sensors
All GM vehicles now in production and sold in the U.S., as well as many vehicles sold in Canada,
feature Tire Pressure Monitoring Systems that have valve stem mounted Tire Pressure Sensors.
When dismounting and mounting tires, care must be taken when breaking the bead loose from the
wheel. If the tire machines bead breaking fixture is positioned too close to the tire pressure sensor,
as the tire bead breaks away from the wheel it may be forced into, or catch on the edge of the tire
pressure sensor. This can damage the sensor and require the sensor to be replaced.
Care must also be taken when transferring the tire bead to the other side of the wheel rim. As the
tire machine rotates and the tire bead is stretched around the wheel rim, the bead can come in
contact with the sensor if it is not correctly positioned in relation to the mounting/dismounting head
prior to tire mounting/dismounting. This can also cause sensor damage requiring replacement.
Procedure
Notice:
Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in
order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result.
Notice:
Do not scratch or damage the clear coating on aluminum wheels with the tire changing equipment.
Scratching the clear coating could cause the aluminum wheel to corrode and the clear coating to
peel from the wheel.
1. Remove the valve core from the valve stem.
2. Deflate the tire completely.
Important:
Rim-clamp European-type tire changers are recommended.
3. Use the tire changer in order to remove the tire from the wheel. Follow steps 4-7 to remove the
tire from the wheel.
4. When separating the tire bead from the wheel position the bead breaking fixture 90, 180 and 270
degrees from the valve stem.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs
> Page 2687
5. Position the wheel and tire so the valve stem is situated at the 2 o'clock position relative to the
head. The tire iron or pry bar can be inserted when prying the outer tire bead up and over the
mounting/dismounting head.
6. Position the wheel and tire so that the valve stem is situated again at the 2 o'clock position
relative to the head. The tire iron or pry bar can be inserted when prying the inner tire bead up and
over the mounting/dismounting head.
7. Remove all residual liquid sealant from the inside of the tire and wheel surfaces. If any tire
sealant is noted upon tire dismounting on vehicles equipped with TPM replace the tire pressure
sensor.
8. Use a wire brush or coarse steel wool in order to remove any rubber, light rust or corrosion from
the wheel bead seats.
Important:
If bead seat corrosion has been identified as an air loss concern on the wheel being worked on,
refer to GM Service Bulletin # 08-03-10-006 for additional information on correcting the leak.
9. Apply GM P/N 12345884 (in Canada, P/N 5728223) or equivalent to the tire bead and the wheel
rim.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs
> Page 2688
10. Using the tire machine, rotate the tire/wheel assembly clockwise when transferring the tire bead
to the inside of the wheel rim.
11. Position the rim so that the valve stem (1) is situated at the 3 o'clock position relative to the
head (2). This will protect the sensor when the bottom bead seats.
12. After the bottom bead is on the wheel, reposition the wheel and tire so that the valve stem is
situated at the 9 o'clock position relative to the head. This will protect the sensor while mounting
the tire bead to the outside of the wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Spark Plug > Component
Information > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs
> Page 2689
13. Use the tire changer in order to install the tire to the wheel.
Caution:
To avoid serious personal injury, do not stand over tire when inflating. The bead may break when
the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any
tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, lubricate
the beads and reinflate. Overinflating may cause the bead to break and cause serious personal
injury.
Important:
Allowable bead seating pressure is 345 kPa (50 psi) on Extended Mobility Tires.
14. Inflate the tire until it passes the bead humps. Be sure that the valve core is not installed at this
time.
15. Install the valve core to the valve core stem.
16. Inflate the tire to the proper air pressure.
17. Ensure that the locating rings are visible on both sides of the tire in order to verify that the tire
bead is fully seated on the wheel.
Parts Information
The product shown above is available from GM SPO.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Compression Check > System
Information > Specifications
Compression Check: Specifications
The lowest reading should not be less than 70 percent of the highest reading. No cylinder reading
should be less than
................................................................................................................................................... 689
kPa (100 psi).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Tune-up and Engine Performance Checks > Compression Check > System
Information > Specifications > Page 2693
Compression Check: Testing and Inspection
Engine Compression Test
A compression pressure test of the engine cylinders determines the condition of the rings, the
valves, and the head gasket.
Important: Remove the Powertrain Control Module (PCM) and the ignition fuses from the I/P fuse
block.
1. Disable the ignition. 2. Disable the fuel systems. 3. Remove the spark plugs from all the
cylinders. 4. Remove the air duct from the throttle body. 5. Block the throttle plate in the open
position. 6. Measure the engine compression, using the following procedure:
1. Firmly install the compression gauge to the spark plug hole. 2. Have an assistant crank the
engine through at least 4 compression strokes in the testing cylinder. 3. Record the readings on the
gauge at each stroke. 4. Disconnect the gauge. 5. Repeat the compression test for each cylinder.
7. Record the compression readings from all of the cylinders.
* The lowest reading should not be less than 70 percent of the highest reading.
* No cylinder reading should be less than 689 kPa (100 psi).
8. The following list contains examples of the possible measurements:
* When the compression measurement is normal, the compression builds up quickly and evenly to
the specified compression on each cylinder.
* When the compression is low on the first stroke and tends to build up on the following strokes, but
does not reach the normal compression, the piston rings may be the cause.
* If the compression improves considerably with the addition of three squirts of oil, the piston rings
may be the cause.
* When the compression is low on the first stroke and does not build up in the following strokes, the
valves may be the cause.
* The addition of oil does not affect the compression, the valves may be the cause.
* When the compression is low on two adjacent cylinders, or coolant is present in the crankcase,
the head gasket may be the cause.
9. Remove the block from the throttle plate.
10. Install the air duct to the throttle body. 11. Install the spark plugs. 12. Install the Powertrain
Control Module (PCM) fuse. 13. Install the ignition fuse to the I/P fuse block.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Timing Component Alignment Marks > Component Information > Locations
Timing Component Alignment Marks: Locations
^ Align the crankshaft timing mark (2) to the timing mark on the bottom of the timing chain
dampener (1).
^ Hold the camshaft sprocket with the timing chain hanging down and install the timing chain to the
crankshaft gear.
^ Align the timing mark on the camshaft gear (4) with the timing mark on top of the timing chain
dampener (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Technical Service Bulletins > Engine
- Drive Belt Misalignment Diagnostics
Drive Belt: Technical Service Bulletins Engine - Drive Belt Misalignment Diagnostics
INFORMATION
Bulletin No.: 08-06-01-008A
Date: July 27, 2009
Subject: Diagnosing Accessory Drive Belt / Serpentine Belt Noise and Availability and Use of
Kent-Moore EN-49228 Laser Alignment Tool - Drive Belt
Models:
2010 and Prior GM Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2,
H3 Vehicles 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add a model year and update the Tool Information.
Please discard Corporate Bulletin Number 08-06-01-008 (Section 06 - Engine).
Background
Several aftermarket companies offer laser alignment tools for accessory drive systems that can be
very helpful in eliminating drive belt noise as a result of misaligned pulleys. Typically pricing ranges
from $160 - $200.
EN-49228 Laser Alignment Tool - Drive Belt
The GM Tool program has now made available a competitive, simple to use and time-saving laser
tool to assist in achieving precise alignment of the drive belt pulleys. This optional tool removes the
guesswork from proper pulley alignment and may serve to reduce comebacks from:
- Drive Belt Noise
- Accelerated Drive Belt Wear
- Drive Belt Slippage
Instructions
The instructions below are specific only to the truck Gen IV V-8 family of engines. These
instructions are only for illustrative purposes to show how the tool may be used. Universal
instructions are included in the box with the Laser Alignment Tool - Drive Belt.
Caution
- Do not look directly into the beam projected from the laser.
- Use caution when shining the laser on highly polished or reflective surfaces. Laser safety glasses
help reduce laser beam glare in many circumstances.
- Always use laser safety glasses when using the laser. Laser safety glasses are not designed to
protect eyes from direct laser exposure.
1. Observe and mark the serpentine belt orientation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Technical Service Bulletins > Engine
- Drive Belt Misalignment Diagnostics > Page 2701
2. Remove the serpentine belt from the accessory drive system.
3. Install the tool onto the power steering pulley. Position the legs of the tool into the outer grooves
of the pulley, farthest from the front of the
engine.
4. Install the retaining cord around the pulley and to the legs of the tool.
5. Put on the laser safety glasses provided with the tool. 6. Depress the switch on the rear of the
tool to activate the light beam. 7. Rotate the power steering pulley as required to project the light
beam onto the crankshaft balancer pulley grooves. 8. Inspect for proper power steering pulley
alignment.
- If the laser beam projects onto the second rib or raised area (1), the pulleys are aligned properly.
- If the laser beam projects more than one-quarter rib 0.9 mm (0.035 in) mis-alignment, adjust the
position of the power steering pulley as required.
- Refer to SI for Power Steering Pulley Removal and Installation procedures.
9. Install the serpentine belt to the accessory drive system in the original orientation.
10. Operate the vehicle and verify that the belt noise concern is no longer present.
Tool Information
Please visit the GM service tool website for pricing information or to place your order for this tool.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Technical Service Bulletins > Engine
- Drive Belt Misalignment Diagnostics > Page 2702
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Technical Service Bulletins > Page
2703
Drive Belt: Service Precautions
Belt Dressing Notice
Notice: Do not use belt dressing on the drive belt. Belt dressing causes the breakdown of the
composition of the drive belt. Failure to follow this recommendation will damage the drive belt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Technical Service Bulletins > Page
2704
Drive Belt: Description and Operation
Drive Belt System Description
The drive belt system consists of the following components:
* The drive belt
* The drive belt tensioner
* The drive belt idler pulley
* The crankshaft balancer pulley
* The accessory drive component mounting brackets
* The accessory drive components
- The power steering pump, if belt driven
- The generator
- The A/C compressor, if equipped
- The engine cooling fan, if belt driven
- The water pump, if belt driven
- The vacuum pump, if equipped
- The air compressor, if equipped
The drive belt system may use one belt or two belts. The drive belt is thin so that it can bend
backwards and has several ribs to match the grooves in the pulleys. There also may be a V-belt
style belt used to drive certain accessory drive components. The drive belts are made of different
types of rubbers (chloroprene or EPDM) and have different layers or plys containing either fiber
cloth or cords for reinforcement.
Both sides of the drive belt may be used to drive the different accessory drive components. When
the back side of the drive belt is used to drive a pulley, the pulley is smooth.
The drive belt is pulled by the crankshaft balancer pulley across the accessory drive component
pulleys. The spring loaded drive belt tensioner keeps constant tension on the drive belt to prevent
the drive belt from slipping. The drive belt tensioner arm will move when loads are applied to the
drive belt by the accessory drive components and the crankshaft.
The drive belt system may have an idler pulley, which is used to add wrap to the adjacent pulleys.
Some systems use an idler pulley in place of an accessory drive component when the vehicle is
not equipped with the accessory.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Drive Belt
Chirping, Squeal, and Whine Diagnosis
Drive Belt: Testing and Inspection Drive Belt Chirping, Squeal, and Whine Diagnosis
Drive Belt Chirping, Squeal, and Whine Diagnosis
Diagnostic Aids
* A chirping or squeal noise may be intermittent due to moisture on the drive belts or the pulleys. It
may be necessary to spray a small amount of water on the drive belts in order to duplicate the
customers concern. If spraying water on the drive belt duplicates the symptom, cleaning the belt
pulleys may be the probable solution.
* If the noise is intermittent, verify the accessory drive components by varying their loads making
sure they are operated to their maximum capacity. An overcharged A/C system, power steering
system with a pinched hose or wrong fluid, or a generator failing are suggested items to inspect.
* A chirping, squeal or whine noise may be caused by a loose or improper installation of a body or
suspension component. Other items of the vehicle may also cause the noise.
* The drive belts will not cause a whine noise.
Test Description
The numbers below refer to the step numbers on the diagnostic table. 2. The noise may not be
engine related. This step is to verify that the engine is making the noise. If the engine is not making
the noise do not proceed further with this table. 3. The noise may be an internal engine noise.
Removing the drive belts one at a time and operating the engine for a brief period will verify the
noise is related to the drive belt. When removing the drive belt the water pump may not be
operating and the engine may overheat. Also DTCs may set when the engine is operating with the
drive belts removed. 4. Inspect all drive belt pulleys for pilling. Pilling is the small balls or pills or it
can be strings in the drive belt grooves from the accumulation of rubber dust. 6. Misalignment of
the pulleys may be caused from improper mounting of the accessory drive component, incorrect
installation of the accessory drive component pulley, or the pulley bent inward or outward from a
previous repair. Test for a misaligned pulley using a straight edge in the pulley grooves across two
or three pulleys. If a misaligned pulley is found refer to that accessory drive component for the
proper installation procedure for that pulley. 10. Inspecting of the fasteners can eliminate the
possibility that a wrong bolt, nut, spacer, or washer was installed. 12. Inspecting the pulleys for
being bent should include inspecting for a dent or other damage to the pulleys that would prevent
the drive belt from not seating properly in all of the pulley grooves or on the smooth surface of a
pulley when the back side of the belt is used to drive the pulley. 14. This test is to verify that the
drive belt tensioner operates properly. If the drive belt tensioner is not operating properly, proper
belt tension may not be achieved to keep the drive belt from slipping which could cause a squeal
noise. 15. This test is to verify that the drive belt is not too long, which would prevent the drive belt
tensioner from working properly. Also if an incorrect length drive belt was installed, it may not be
routed properly and may be turning an accessory drive component in the wrong direction. 16.
Misalignment of the pulleys may be caused from improper mounting of the accessory drive
component, incorrect installation of the accessory drive component pulley, or the pulley bent inward
or outward from a previous repair. Test for a misaligned pulley using a straight edge in the pulley
grooves across two or three pulleys. If a misaligned pulley is found refer to that accessory drive
component for the proper installation procedure for that pulley. 17. This test is to verify that the
pulleys are the correct diameter or width. Using a known good vehicle compare the pulley sizes.
19. Replacing the drive belt when it is not damaged or there is not excessive pilling will only be a
temporary repair.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Drive Belt
Chirping, Squeal, and Whine Diagnosis > Page 2707
Step 1 - Step 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Drive Belt
Chirping, Squeal, and Whine Diagnosis > Page 2708
Step 8 - Step 16
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Drive Belt
Chirping, Squeal, and Whine Diagnosis > Page 2709
Step 17 - Step 20
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Drive Belt
Chirping, Squeal, and Whine Diagnosis > Page 2710
Drive Belt: Testing and Inspection Drive Belt Falls Off and Excessive Wear Diagnosis
Drive Belt Falls Off and Excessive Wear Diagnosis
Diagnostic Aids
If the drive belt repeatedly falls off the drive belt pulleys, this is because of pulley misalignment.
An extra load that is quickly applied on released by an accessory drive component may cause the
drive belt to fall off the pulleys. Verify the accessory drive components operate properly.
If the drive belt is the incorrect length, the drive belt tensioner may not keep the proper tension on
the drive belt.
Excessive wear on a drive belt is usually caused by an incorrect installation or the wrong drive belt
for the application.
Minor misalignment of the drive belt pulleys will not cause excessive wear, but will probably cause
the drive belt to make a noise or to fall off.
Excessive misalignment of the drive belt pulleys will cause excessive wear but may also make the
drive belt fall off.
Test Description
The numbers below refer to the step numbers on the diagnostic table. 2. This inspection is to verify
the condition of the drive belt. Damage may of occurred to the drive belt when the drive belt fell off.
The drive belt may of been damaged, which caused the drive belt to fall off. Inspect the belt for
cuts, tears, sections of ribs missing, or damaged belt plys. 4. Misalignment of the pulleys may be
caused from improper mounting of the accessory drive component, incorrect installation of the
accessory drive component pulley, or the pulley bent inward or outward from a previous repair.
Test for a misaligned pulley using a straight edge in the pulley grooves across two or three pulleys.
If a misaligned pulley is found refer to that accessory drive component for the proper installation
procedure of that pulley. 5. Inspecting the pulleys for being bent should include inspecting for a
dent or other damage to the pulleys that would prevent the drive belt from not seating properly in all
of the pulley grooves or on the smooth surface of a pulley when the back side of the belt is used to
drive the pulley. 6. Accessory drive component brackets that are bent or cracked will let the drive
belt fall off. 7. Inspection of the fasteners can eliminate the possibility that a wrong bolt, nut ,
spacer, or washer was installed. Missing, loose, or the wrong fasteners may cause pulley
misalignment from the bracket moving under load. Over tightening of the fasteners may cause
misalignment of the accessory component bracket. 13. The inspection is to verify the drive belt is
correctly installed on all of the drive belt pulleys. Wear on the drive belt may be caused by
mis-positioning the drive belt by one groove on a pulley. 14. The installation of a drive belt that is
too wide or too narrow will cause wear on the drive belt. The drive belt ribs should match all of the
grooves on all of the pulleys. 15. This inspection is to verify the drive belt is not contacting any
parts of the engine or body while the engine is operating. There should be sufficient clearance
when the drive belt accessory drive components load varies. The drive belt should not come in
contact with an engine or a body component when snapping the throttle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Drive Belt
Chirping, Squeal, and Whine Diagnosis > Page 2711
Step 1 - Step 9
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Drive Belt
Chirping, Squeal, and Whine Diagnosis > Page 2712
Step 10 - Step 17
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Drive Belt
Chirping, Squeal, and Whine Diagnosis > Page 2713
Drive Belt: Testing and Inspection Drive Belt Rumbling and Vibration Diagnosis
Drive Belt Rumbling and Vibration Diagnosis
Diagnostic Aids
The accessory drive components can have an affect on engine vibration. Vibration from the engine
operating may cause a body component or another part of the vehicle to make rumbling noise.
Vibration can be caused by, but not limited to the air conditioning (A/C) system over charged, the
power steering system restricted or the incorrect fluid, or an extra load on the generator. To help
identify an intermittent or an improper condition, vary the loads on the accessory drive components.
The drive belt may have a rumbling condition that can not be seen or felt. Sometimes replacing the
drive belt may be the only repair for the symptom.
If replacing the drive belt, completing the diagnostic table, and the noise is only heard when the
drive belts are installed, there might be an accessory drive component with a failure. Varying the
load on the different accessory drive components may aid in identifying which component is
causing the rumbling noise.
Test Description
The numbers below refer to the step numbers on the diagnostic table. 2. This test is to verify that
the symptom is present during diagnosing. Other vehicle components may cause a similar
symptom. 3. This test is to verify that one of the drive belts is causing the rumbling noise or
vibration. Rumbling noise may be confused with an internal engine noise due to the similarity in the
description. Remove only one drive belt at a time if the vehicle has multiple drive belts. When
removing the drive belts the water pump may not be operating and the engine may overheat. Also
DTCs may set when the engine is operating with the drive belts removed. 4. Inspecting the drive
belts is to ensure that they are not causing the noise. Small cracks across the ribs of the drive belt
will not cause the noise. Belt separation is identified by the plys of the belt separating and may be
seen at the edge of the belt our felt as a lump in the belt. 5. Small amounts of pilling is normal
condition and acceptable. When the pilling is severe the drive belt does not have a smooth surface
for proper operation. 9. Inspecting of the fasteners can eliminate the possibility that the wrong bolt,
nut, spacer, or washer was installed. 11. This step should only be performed if the water pump is
driven by the drive belt. Inspect the water pump shaft for being bent. Also inspect the water pump
bearings for smooth operation and excessive play. Compare the water pump with a known good
water pump. 12. Accessory drive component brackets that are bent, cracked, or loose may put
extra strain on that accessory component causing it to vibrate.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Drive Belt
Chirping, Squeal, and Whine Diagnosis > Page 2714
Step 1 - Step 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Drive Belt
Chirping, Squeal, and Whine Diagnosis > Page 2715
Step 8 - Step 13
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Page 2716
Drive Belt: Service and Repair
Drive Belt Replacement
Tools Required
J 39914 Serpentine Belt Tensioner Unloader
Removal Procedure
1. Remove the air cleaner assembly.
2. Using J 39914 rotate the drive belt tensioner (8) to release the tension on the drive belt. 3.
Remove the drive belt from the right idler pulley (2). 4. Carefully release J 39914 to relieve the drive
belt tensioner spring tension. 5. Remove J 39914 from the drive belt tensioner (8). 6. Provided the
vehicle will not be raised or lifted to perform additional work. Utilizing a floor jack and a wood block,
support the front of the engine
using the following procedure.
1. Place the wood block between the lift point of the floor jack and the bottom of the engine oil pan.
2. Raise the jack until the wood block comes into contact with the engine oil pan and is capable of
supporting the weight of the engine.
7. If the vehicle is to be raised or lifted in order to perform additional work. Support the engine using
the engine support fixture. 8. Remove the right engine mount.
9. Remove the drive belt from the remaining pulleys.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Drive Belt > Component Information > Testing and Inspection > Page 2717
1. Install the drive belt to all the pulleys except the right idler pulley. 2. Install the right engine
mount. 3. Depending on which method was used to support the engine. Remove the floor jack from
under the engine oil pan or remove the engine support
fixture.
4. Using J 39914 rotate the drive belt tensioner away from the drive belt. 5. Install the drive belt to
the right idler pulley (2). 6. Carefully release J 39914 allowing the drive belt tensioner (8) to come in
contact with the drive belt. 7. Remove J 39914 from the drive belt tensioner (8). 8. Inspect the drive
belt to insure the belt is properly centered on all pulleys (1-8). 9. Install the air cleaner assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Air Cleaner Housing > Air Cleaner Fresh Air Duct/Hose >
Component Information > Service and Repair
Air Cleaner Fresh Air Duct/Hose: Service and Repair
AIR CLEANER INLET DUCT REPLACEMENT
REMOVAL PROCEDURE
1. Loosen the clamps at both ends of the air cleaner intake duct. 2. Remove the positive crankcase
ventilation (PCV) fresh air pipe from the air cleaner intake duct. 3. Remove the air cleaner intake
duct from the mass air flow (MAF) sensor and throttle body.
INSTALLATION PROCEDURE
1. Install the air cleaner intake duct to the MAF sensor and throttle body. 2. Install the PCV fresh air
pipe to the air cleaner intake duct.
3. NOTE: Refer to Fastener Notice.
Tighten the clamps at both ends of the air cleaner intake duct.
Tighten the clamps to 4 N.m (35 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Air Cleaner Housing > Air Filter Element > Component Information
> Technical Service Bulletins > Customer Interest for Air Filter Element: > 04-07-30-013B > Feb > 07 > Engine, A/T Shift/Driveability Concerns/MIL ON
Air Filter Element: Customer Interest Engine, A/T - Shift/Driveability Concerns/MIL ON
Bulletin No.: 04-07-30-013B
Date: February 01, 2007
INFORMATION
Subject: Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon
(SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air
Filter
Models: 2007 and Prior GM Cars and Light Duty Trucks 2007 and Prior Saturn Models 2003-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 04-07-30-013A (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
Service Engine Soon (SES) light on
Transmission shift concerns, slipping and damaged clutch(es) or band(s)
Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF)
sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from
the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an
aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared
to a like vehicle with an OEM air box and filter under the same driving conditions to verify the
concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and
the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with
oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not
considered to be warrantable repair items.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Air Cleaner Housing > Air Filter Element > Component Information
> Technical Service Bulletins > Customer Interest for Air Filter Element: > 04-07-30-013B > Feb > 07 > Engine, A/T Shift/Driveability Concerns/MIL ON > Page 2731
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Air Cleaner Housing > Air Filter Element > Component Information
> Technical Service Bulletins > All Technical Service Bulletins for Air Filter Element: > 04-07-30-013B > Feb > 07 > Engine,
A/T - Shift/Driveability Concerns/MIL ON
Air Filter Element: All Technical Service Bulletins Engine, A/T - Shift/Driveability Concerns/MIL ON
Bulletin No.: 04-07-30-013B
Date: February 01, 2007
INFORMATION
Subject: Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon
(SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air
Filter
Models: 2007 and Prior GM Cars and Light Duty Trucks 2007 and Prior Saturn Models 2003-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 04-07-30-013A (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
Service Engine Soon (SES) light on
Transmission shift concerns, slipping and damaged clutch(es) or band(s)
Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF)
sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from
the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an
aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared
to a like vehicle with an OEM air box and filter under the same driving conditions to verify the
concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and
the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with
oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not
considered to be warrantable repair items.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Air Cleaner Housing > Air Filter Element > Component Information
> Technical Service Bulletins > All Technical Service Bulletins for Air Filter Element: > 04-07-30-013B > Feb > 07 > Engine,
A/T - Shift/Driveability Concerns/MIL ON > Page 2737
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Air Cleaner Housing > Air Filter Element > Component Information
> Technical Service Bulletins > Page 2738
Air Filter Element: Service and Repair
AIR CLEANER ELEMENT REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Release the clamps (2) on the side of the air cleaner assembly. 4. Remove the air cleaner
assembly lid (1) by tilting to release the lid from the lower housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Air Cleaner Housing > Air Filter Element > Component Information
> Technical Service Bulletins > Page 2739
5. Remove the air cleaner element (2) from the lower housing (1).
INSTALLATION PROCEDURE
1. Install the air cleaner element (2) into the lower housing (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Air Cleaner Housing > Air Filter Element > Component Information
> Technical Service Bulletins > Page 2740
2. Install the air cleaner assembly lid (1) by first engaging the hinge then lower the cover into the
closed position. 3. Fasten the clamps (2) on the side of the air cleaner assembly.
4. Connect the MAF sensor electrical connector. 5. Install the air cleaner intake duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Cabin Air Filter > Component Information > Service and Repair >
Passenger Compartment Air Filter Housing Replacement
Cabin Air Filter: Service and Repair Passenger Compartment Air Filter Housing Replacement
Passenger Compartment Air Filter Housing Replacement
Removal Procedure
1. Remove the push pins from the rear of the RH air inlet panel.
2. Open the hood. 3. Remove the push pins from the top and forward edge of the RH air inlet
panel. 4. Remove the RH air inlet panel screw.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Cabin Air Filter > Component Information > Service and Repair >
Passenger Compartment Air Filter Housing Replacement > Page 2745
5. Remove the RH air inlet panel. 6. Remove the LH air inlet panel.
7. Remove the filter housing nuts from the vehicle. 8. Remove the filter housing from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Cabin Air Filter > Component Information > Service and Repair >
Passenger Compartment Air Filter Housing Replacement > Page 2746
1. Inspect the foam seal. If the seal is damaged, replace the seal using Kent Industries adhesive
back foam tape P/N 46485 (or equivalent). 2. Install the filter housing to the vehicle.
Notice: Refer to Fastener Notice.
Important: New seal nuts must be used when installing passenger compartment air filter housing to
prevent leaks.
3. Install the new seal nuts to the filter housing.
Tighten the nuts to 9 N.m (80 lb in).
4. Install the LH air inlet panel. 5. Install the RH air inlet panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Cabin Air Filter > Component Information > Service and Repair >
Passenger Compartment Air Filter Housing Replacement > Page 2747
6. Install the push pins and screw to the top and forward edge of the RH air inlet panel. 7. Close the
hood.
8. Install the push pins to the rear of the RH air inlet panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Cabin Air Filter > Component Information > Service and Repair >
Passenger Compartment Air Filter Housing Replacement > Page 2748
Cabin Air Filter: Service and Repair Passenger Compartment Air Filter Replacement
Passenger Compartment Air Filter Replacement
Removal Procedure
1. Remove the push pins from the rear of the RH air inlet panel.
2. Open the hood. 3. Remove the push pins from the top and forward edge of the RH air inlet
panel. 4. Remove the RH air inlet panel screw.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Cabin Air Filter > Component Information > Service and Repair >
Passenger Compartment Air Filter Housing Replacement > Page 2749
5. Remove the RH air inlet panel.
6. Remove the filter from the filter housing by depressing the release tab at the inboard edge of the
filter housing. 7. Remove the filter from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Cabin Air Filter > Component Information > Service and Repair >
Passenger Compartment Air Filter Housing Replacement > Page 2750
1. Install the filter to the vehicle.
2. Install the RH air inlet panel. 3. Install the RH air inlet panel screw.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Cabin Air Filter > Component Information > Service and Repair >
Passenger Compartment Air Filter Housing Replacement > Page 2751
4. Install the push pins to the top and forward edge of the RH air inlet panel. 5. Close the hood.
6. Install the push pins to the rear of the RH air inlet panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Evaporative Canister Filter > Component Information > Service and
Repair
Evaporative Canister Filter: Service and Repair
EVAPORATIVE EMISSION CANISTER FILTER REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: The evaporative emission (EVAP) canister filter cover must also be replaced
when the EVAP filter is replaced to ensure
proper operation of the EVAP canister.
Raise and support the vehicle. Refer to Vehicle Lifting .
2. Remove the EVAP canister from the vehicle.
3. Carefully release the canister filter cover rear retaining tabs. 4. Carefully release the canister
filter cover forward retaining tabs and remove the cover from the EVAP canister. 5. Discard the
EVAP canister filter cover.
6. Remove the filter from the canister and discard the filter. 7. Clean the inside of the EVAP
canister filter housing with a clean
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Evaporative Canister Filter > Component Information > Service and
Repair > Page 2755
1. Install a NEW filter to the canister filter housing.
2. IMPORTANT: Ensure that the seal is properly seated in the NEW EVAP filter cover.
Install a NEW EVAP filter cover to the EVAP canister.
3. Install the EVAP canister to the vehicle. 4. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Fuel Filter > Fuel Pressure Release > System Information >
Service and Repair > Fuel Pressure Relief
Fuel Pressure Release: Service and Repair Fuel Pressure Relief
FUEL PRESSURE RELIEF
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
WITH CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Remove the engine cover, if required. 2. Loosen the fuel fill cap in order to relieve the fuel tank
vapor pressure. 3. Remove the fuel rail service port cap.
4. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel will
absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
5. Connect the CH-48027-3 (4) to the fuel rail service port. 6. Connect the CH-48027-2 (2) to the
CH-48027-3 (4). 7. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 8.
Open the valve on the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 9. Close the
valve on the CH-48027-2 (2).
10. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
IMPORTANT: If relieving the fuel pressure for the fuel pressure gage installation and removal, it is
NOT necessary to proceed with the following steps.
11. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Fuel Filter > Fuel Pressure Release > System Information >
Service and Repair > Fuel Pressure Relief > Page 2761
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-2 (2) from the CH-48027-3 (4).
12. Disconnect the CH-48027-3 (4) from the fuel rail service port. 13. Remove the shop towel from
around the fuel rail service port, and place in an approved gasoline container. 14. Install the fuel rail
service port cap. 15. Install the engine cover, if required. 16. Tighten the fuel fill cap.
WITHOUT CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure. 2. Remove the engine
cover, if required. 3. Remove the fuel rail service port cap. 4. Wrap a shop towel around the fuel rail
service port and using a small flat bladed tool, depress (open) the fuel rail test port valve. 5.
Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container. 6. Install the fuel rail service port cap. 7. Install the engine cover, if required. 8. Tighten
the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Fuel Filter > Fuel Pressure Release > System Information >
Service and Repair > Fuel Pressure Relief > Page 2762
Fuel Pressure Release: Service and Repair Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Fuel Filter > Fuel Pressure Release > System Information >
Service and Repair > Fuel Pressure Relief > Page 2763
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Oil Filter, Engine > Component Information > Technical Service
Bulletins > Engine - Noise/Damage Oil Filter Application Importance
Oil Filter: Technical Service Bulletins Engine - Noise/Damage Oil Filter Application Importance
INFORMATION
Bulletin No.: 07-06-01-016B
Date: July 27, 2009
Subject: Information on Internal Engine Noise or Damage After Oil Filter Replacement
Models:
2010 and Prior Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2, H3
2009 and Prior Saab 9-7X
Supercede: This bulletin is being updated to add model years. Please discard Corporate Bulletin
Number 07-06-01-016A (Section 06 - Engine/Propulsion System).
Important Engine damage that is the result of an incorrect or improperly installed engine oil filter is
not a warrantable claim. The best way to avoid oil filter quality concerns is to purchase ACDelco(R)
oil filters directly from GMSPO.
Oil filter misapplication may cause abnormal engine noise or internal damage. Always utilize the
most recent parts information to ensure the correct part number filter is installed when replacing oil
filters. Do not rely on physical dimensions alone. Counterfeit copies of name brand parts have been
discovered in some aftermarket parts systems. Always ensure the parts you install are from a
trusted source. Improper oil filter installation may result in catastrophic engine damage.
Refer to the appropriate Service Information (SI) installation instructions when replacing any oil
filter and pay particular attention to procedures for proper cartridge filter element alignment. If the
diagnostics in SI (Engine Mechanical) lead to the oil filter as the cause of the internal engine noise
or damage, dealers should submit a field product report. Refer to Corporate Bulletin Number
02-00-89-002I (Information for Dealers on How to Submit a Field Product Report).
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Oil Filter, Engine > Component Information > Technical Service
Bulletins > Page 2768
Oil Filter: Service and Repair
Engine Oil and Oil Filter Replacement
Removal Procedure
1. Raise and support the vehicle. 2. Position the oil drain pan under the engine oil drain plug.
3. Remove the engine oil drain plug. 4. Clean and inspect the engine oil drain plug, replace if
necessary. 5. Clean and inspect the engine oil drain plug sealing surface on the oil pan, repair or
replace oil pan if necessary.
6. Remove the oil filter. 7. Clean and inspect the oil filter sealing area on the oil filter adapter, repair
or replace if necessary.
Installation Procedure
1. Lightly oil the replacement oil filter gasket with clean oil .
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Oil Filter, Engine > Component Information > Technical Service
Bulletins > Page 2769
Notice: Refer to Component Fastener Tightening Notice .
2. Install the new oil filter.
Tighten the filter to 3/4 to 1 full turn, after the oil filter gasket contacts the oil filter mounting surface.
3. Install the engine oil drain plug.
Tighten the plug to 25 N.m (18 lb ft).
4. Remove the oil drain pan. 5. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Filters > Oil Filter, Engine > Component Information > Technical Service
Bulletins > Page 2770
6. Remove the oil fill cap from the rocker arm cover. 7. Fill the engine with new engine oil. 8. Install
the oil fill cap to the rocker arm cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement
Coolant Line/Hose: Service and Repair Heater Inlet Pipe Replacement
Heater Inlet Pipe Replacement
Removal Procedure
1. Drain the cooling system.
2. Release and slide the heater core inlet hose clamp away from the heater inlet pipe connection.
3. Disconnect the heater core inlet hose from the heater inlet pipe.
4. Remove the heater inlet pipe nut (2). 5. Remove the heater inlet pipe (1). 6. Remove the seal (3)
from the heater inlet pipe (1).
Installation Procedure
1. Install a new seal (3) to the heater inlet pipe (1). 2. Apply engine coolant to the heater inlet pipe
seal (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2776
3. Install the heater outlet pipe (1).
Notice: Refer to Fastener Notice .
4. Install the heater inlet pipe nut (2).
Tighten the nut to 25 N.m (18 lb ft).
5. Connect the heater core inlet hose to the heater inlet pipe. 6. Position the heater core inlet hose
clamp over the heater inlet pipe connection. 7. Fill the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2777
Coolant Line/Hose: Service and Repair Heater Outlet Hose Replacement
Heater Outlet Hose Replacement
Removal Procedure
1. Drain the cooling system.
2. Remove the heater outlet hose clamps (1). 3. Remove the heater outlet hose (2).
Installation Procedure
1. Apply engine coolant to the heater outlet hose in order to ease installation.
2. Install the heater outlet hose (2). 3. Install the heater outlet hose clamps (1). 4. Fill the cooling
system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2778
Coolant Line/Hose: Service and Repair Heater Outlet Pipe Replacement
Heater Outlet Pipe Replacement
Removal Procedure
1. Remove the injector sight shield. 2. Drain the cooling system. 3. Remove the air cleaner air
intake duct.
4. Remove the manifold absolute pressure (MAP) sensor bolt (3) and bracket (2). 5. Rotate the
MAP sensor out of the way of the heater outlet pipe. 6. Disconnect the evaporative emissions
(EVAP) pipe from the EVAP canister purge solenoid. 7. Disconnect the electrical connector from
the EVAP canister purge solenoid. 8. Disconnect the exhaust gas recirculation (EGR) valve
electrical connector.
9. Release and slide the heater outlet hose clamp (1) away from the heater outlet pipe connection.
10. Disconnect the heater outlet hose (2) from the heater outlet pipe.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2779
11. Release and slide the heater core outlet hose clamp away from the heater outlet pipe
connection. 12. Disconnect the heater core outlet hose from the heater outlet pipe.
13. Remove the heater outlet pipe nut (1) securing the heater outlet pipe (2) to the intake manifold.
14. Remove the two nuts (3) and bolt (4) securing the heater outlet pipe to the throttle body. 15.
Remove the heater outlet pipe (2) from the engine.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2780
1. Install the heater outlet pipe (2) to the engine.
Notice: Refer to Fastener Notice .
2. Install the heater outlet pipe nut (1) securing the heater outlet pipe (2) to the intake manifold.
Tighten the nut to 25 N.m (18 lb ft).
3. Install the heater outlet pipe to the throttle body nuts (3) and bolt (4).
Tighten the nuts and bolt to 10 N.m (89 lb in).
4. Connect the heater core outlet hose to the heater outlet pipe. 5. Position the heater core outlet
hose clamp over the heater outlet pipe connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2781
6. Connect the heater outlet hose (2) to the heater outlet pipe. 7. Position the heater outlet hose
clamp (1) over the heater outlet pipe connection. 8. Connect the electrical connector to the EGR
valve. 9. Connect the electrical connector to the EVAP canister purge solenoid.
10. Connect the EVAP pipe to the EVAP canister purge solenoid.
11. Reposition the MAP sensor. 12. Install the MAP sensor bracket (2) and bolt (3).
Tighten the bolt to 10 N.m (89 lb in).
13. Install the air cleaner air intake duct. 14. Fill the cooling system. 15. Install the injector sight
shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2782
Coolant Line/Hose: Service and Repair Thermal Bypass Fitting Replacement
Thermal Bypass Fitting Replacement
Removal Procedure
1. Drain the cooling system.
2. Release and slide the thermal bypass pipe hose clamp (2) away from the thermal bypass fitting.
3. Remove the thermal bypass hose (1) from the thermal bypass fitting.
4. Release and slide the heater outlet hose clamp (1) away from the thermal bypass fitting. 5.
Remove the heater outlet hose (2) from the thermal bypass fitting.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2783
6. Remove the thermal bypass fitting bolt (2). 7. Remove the thermal bypass fitting (1). 8. Remove
the seal from the thermal bypass fitting.
Installation Procedure
1. Install a new seal to the thermal bypass fitting. 2. Apply engine coolant to the thermal bypass
fitting seal to ease installation.
3. Install the thermal bypass fitting (1).
Notice: Refer to Fastener Notice .
4. Install the thermal bypass fitting bolt (2).
Tighten the bolt to 12 N.m (106 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2784
5. Install the heater outlet hose (2) to the thermal bypass fitting. 6. Position the heater outlet hose
clamp (1) over the thermal bypass fitting.
7. Install the thermal bypass hose (1) to the thermal bypass fitting. 8. Position the thermal bypass
pipe hose clamp (2) over the thermal bypass fitting. 9. Fill the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2785
Coolant Line/Hose: Service and Repair
Heater Inlet Pipe Replacement
Heater Inlet Pipe Replacement
Removal Procedure
1. Drain the cooling system.
2. Release and slide the heater core inlet hose clamp away from the heater inlet pipe connection.
3. Disconnect the heater core inlet hose from the heater inlet pipe.
4. Remove the heater inlet pipe nut (2). 5. Remove the heater inlet pipe (1). 6. Remove the seal (3)
from the heater inlet pipe (1).
Installation Procedure
1. Install a new seal (3) to the heater inlet pipe (1). 2. Apply engine coolant to the heater inlet pipe
seal (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2786
3. Install the heater outlet pipe (1).
Notice: Refer to Fastener Notice .
4. Install the heater inlet pipe nut (2).
Tighten the nut to 25 N.m (18 lb ft).
5. Connect the heater core inlet hose to the heater inlet pipe. 6. Position the heater core inlet hose
clamp over the heater inlet pipe connection. 7. Fill the cooling system.
Heater Outlet Hose Replacement
Heater Outlet Hose Replacement
Removal Procedure
1. Drain the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2787
2. Remove the heater outlet hose clamps (1). 3. Remove the heater outlet hose (2).
Installation Procedure
1. Apply engine coolant to the heater outlet hose in order to ease installation.
2. Install the heater outlet hose (2). 3. Install the heater outlet hose clamps (1). 4. Fill the cooling
system.
Heater Outlet Pipe Replacement
Heater Outlet Pipe Replacement
Removal Procedure
1. Remove the injector sight shield. 2. Drain the cooling system. 3. Remove the air cleaner air
intake duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2788
4. Remove the manifold absolute pressure (MAP) sensor bolt (3) and bracket (2). 5. Rotate the
MAP sensor out of the way of the heater outlet pipe. 6. Disconnect the evaporative emissions
(EVAP) pipe from the EVAP canister purge solenoid. 7. Disconnect the electrical connector from
the EVAP canister purge solenoid. 8. Disconnect the exhaust gas recirculation (EGR) valve
electrical connector.
9. Release and slide the heater outlet hose clamp (1) away from the heater outlet pipe connection.
10. Disconnect the heater outlet hose (2) from the heater outlet pipe.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2789
11. Release and slide the heater core outlet hose clamp away from the heater outlet pipe
connection. 12. Disconnect the heater core outlet hose from the heater outlet pipe.
13. Remove the heater outlet pipe nut (1) securing the heater outlet pipe (2) to the intake manifold.
14. Remove the two nuts (3) and bolt (4) securing the heater outlet pipe to the throttle body. 15.
Remove the heater outlet pipe (2) from the engine.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2790
1. Install the heater outlet pipe (2) to the engine.
Notice: Refer to Fastener Notice .
2. Install the heater outlet pipe nut (1) securing the heater outlet pipe (2) to the intake manifold.
Tighten the nut to 25 N.m (18 lb ft).
3. Install the heater outlet pipe to the throttle body nuts (3) and bolt (4).
Tighten the nuts and bolt to 10 N.m (89 lb in).
4. Connect the heater core outlet hose to the heater outlet pipe. 5. Position the heater core outlet
hose clamp over the heater outlet pipe connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2791
6. Connect the heater outlet hose (2) to the heater outlet pipe. 7. Position the heater outlet hose
clamp (1) over the heater outlet pipe connection. 8. Connect the electrical connector to the EGR
valve. 9. Connect the electrical connector to the EVAP canister purge solenoid.
10. Connect the EVAP pipe to the EVAP canister purge solenoid.
11. Reposition the MAP sensor. 12. Install the MAP sensor bracket (2) and bolt (3).
Tighten the bolt to 10 N.m (89 lb in).
13. Install the air cleaner air intake duct. 14. Fill the cooling system. 15. Install the injector sight
shield.
Thermal Bypass Fitting Replacement
Thermal Bypass Fitting Replacement
Removal Procedure
1. Drain the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2792
2. Release and slide the thermal bypass pipe hose clamp (2) away from the thermal bypass fitting.
3. Remove the thermal bypass hose (1) from the thermal bypass fitting.
4. Release and slide the heater outlet hose clamp (1) away from the thermal bypass fitting. 5.
Remove the heater outlet hose (2) from the thermal bypass fitting.
6. Remove the thermal bypass fitting bolt (2). 7. Remove the thermal bypass fitting (1). 8. Remove
the seal from the thermal bypass fitting.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2793
Installation Procedure
1. Install a new seal to the thermal bypass fitting. 2. Apply engine coolant to the thermal bypass
fitting seal to ease installation.
3. Install the thermal bypass fitting (1).
Notice: Refer to Fastener Notice .
4. Install the thermal bypass fitting bolt (2).
Tighten the bolt to 12 N.m (106 lb in).
5. Install the heater outlet hose (2) to the thermal bypass fitting. 6. Position the heater outlet hose
clamp (1) over the thermal bypass fitting.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2794
7. Install the thermal bypass hose (1) to the thermal bypass fitting. 8. Position the thermal bypass
pipe hose clamp (2) over the thermal bypass fitting. 9. Fill the cooling system.
Thermal Bypass Hose Replacement
Thermal Bypass Hose Replacement
Removal Procedure
1. Drain the cooling system.
2. Release and slide the thermal bypass pipe hose clamps (2) away from the hose connections. 3.
Remove thermal bypass hose (1).
Installation Procedure
1. Apply engine coolant to the bypass hose in order to ease installation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2795
2. Install the thermal bypass pipe hose (1). 3. Position the thermal bypass pipe hose clamps (2)
over the hose end connections. 4. Fill the cooling system.
Thermal Bypass Pipe Replacement
Thermal Bypass Pipe Replacement
Tools Required
J 21882 Oil Suction Pipe Installer
Removal Procedure
1. Drain the engine coolant. 2. Remove the upper intake manifold. 3. Remove the thermal bypass
hose.
4. Remove the thermal bypass pipe bolt. 5. Remove the thermal bypass pipe .
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Coolant Line/Hose > Component Information > Service and Repair
> Heater Inlet Pipe Replacement > Page 2796
1. Apply sealant GM P/N 12345493 (Canadian P/N 10953488) or equivalent to the end of the
thermal bypass pipe where the pipe is pressed into the
intake manifold.
2. Install the thermal bypass pipe using J 21882 .
Notice: Refer to Fastener Notice .
3. Install the thermal bypass pipe bolt.
Tighten the bolt to 10 N.m (89 lb in).
4. Install the thermal bypass hose. 5. Install the upper intake manifold. 6. Fill the engine with
coolant.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Heater Hose > Component Information > Service and Repair >
Heater Inlet Hose Replacement
Heater Hose: Service and Repair Heater Inlet Hose Replacement
Heater Inlet Hose Replacement
Removal Procedure
1. Drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill) Draining and
Filling Cooling System (GE 47716 Fill). 2. Remove the heater inlet hose clamp from the heater
core. 3. Remove the heater inlet hose (2) from the heater core.
4. Remove the heater inlet hose clamp from the engine. 5. Remove the heater inlet hose (2) from
the engine. 6. Remove the heater inlet hose (2) from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Heater Hose > Component Information > Service and Repair >
Heater Inlet Hose Replacement > Page 2801
1. Install the heater inlet hose (2) to the vehicle. 2. Install the heater inlet hose (2) to the engine. 3.
Install the heater inlet hose clamp to the engine.
4. Install the heater inlet hose (2) to the heater core. 5. Install the heater inlet hose clamp to the
heater core. 6. Fill the cooling system. Refer to Draining and Filling Cooling System (Static Fill)
Draining and Filling Cooling System (GE 47716 Fill).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Heater Hose > Component Information > Service and Repair >
Heater Inlet Hose Replacement > Page 2802
Heater Hose: Service and Repair Heater Outlet Hose Replacement
Heater Outlet Hose Replacement
Removal Procedure
1. Drain the engine coolant. Refer to Draining and Filling Cooling System (Static Fill) Draining and
Filling Cooling System (GE 47716 Fill). 2. Remove the heater outlet hose clamp from the heater
core. 3. Remove the heater outlet hose (1) from the heater core.
4. Remove the heater outlet hose clamp from the engine. 5. Remove the heater outlet hose (1)
from the engine. 6. Position the loose end of the heater outlet hose (1) outboard to ease in the
removal of the surge tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Heater Hose > Component Information > Service and Repair >
Heater Inlet Hose Replacement > Page 2803
7. Remove the surge tank inlet hose clamp from the surge tank. 8. Disconnect the surge tank inlet
hose from the surge tank.
9. Remove the surge tank bolts from the surge tank.
10. Lift the surge tank to gain access to the heater outlet hose. 11. Remove the heater outlet hose
clamp from the surge tank. 12. Remove the heater outlet hose from the surge tank. 13. Remove
the surge tank from the vehicle. 14. Remove the heater outlet hose clamp from the hose. This will
aid in routing the heater outlet hose from the vehicle. 15. Remove the heater outlet hose from the
vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Heater Hose > Component Information > Service and Repair >
Heater Inlet Hose Replacement > Page 2804
1. Install the heater outlet hose to the vehicle. Route the hose into position for attachment to the
surge tank. 2. Install the heater outlet hose clamp to the hose. 3. Install the heater outlet hose to
the surge tank. 4. Install the surge tank to the vehicle.
Notice: Refer to Fastener Notice.
5. Install the surge tank bolts to the surge tank.
Tighten the bolts to 8 N.m (71 lb in).
6. Connect the surge tank inlet hose to the surge tank. 7. Install the surge tank inlet hose clamp to
the surge tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Heater Hose > Component Information > Service and Repair >
Heater Inlet Hose Replacement > Page 2805
8. Install the heater outlet hose (1) to the engine. 9. Install the heater outlet hose clamp to the
engine.
10. Install the heater outlet hose (1) to the heater core. 11. Install the heater outlet hose clamp to
the heater core. 12. Fill the engine coolant. Refer to Draining and Filling Cooling System (Static Fill)
Draining and Filling Cooling System (GE 47716 Fill).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement
Hose/Line HVAC: Service and Repair Compressor Hose Assembly Replacement
Compressor Hose Assembly Replacement
Tools Required
J 39400-A Halogen Leak Detector
Removal Procedures
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Heating and Air
Conditioning/Service and Repair/Refrigerant
Recovery and Recharging
2. Remove the left headlamp.
3. Remove the compressor hose retainer nut from the battery box. 4. Remove the evaporator outlet
hose nut from the evaporator outlet hose. 5. Remove the evaporator outlet hose from the
compressor hose. 6. Install a protective cap to the evaporator outlet hose to prevent contamination
and desiccant saturation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2810
7. Remove the compressor hose nut from the condenser. 8. Remove the compressor hose from
the condenser. 9. Install a protective cap to the condenser to prevent contamination and desiccant
saturation.
10. Raise and support the vehicle. Refer to Vehicle Lifting.
11. Disconnect the electrical connector from the pressure transducer. 12. Remove the compressor
hose nut at the compressor. 13. Remove the compressor hose from the compressor. 14. Install a
protective cap to the compressor to prevent contamination and desiccant saturation. 15. Remove
the compressor hose from the vehicle. 16. Remove and discard the sealing washers from the
compressor hose.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2811
1. Remove protective cap from compressor end of the compressor hose and the compressor. 2.
Install new seal washers to the compressor hose. 3. Install the compressor hose to the
compressor.
Notice: Refer to Fastener Notice.
4. Install the compressor hose nut to the compressor.
Tighten the nut to 20 N.m (15 lb ft).
5. Connect the electrical connector to the pressure transducer.
6. Lower the vehicle. 7. Position the compressor hose in the vehicle. 8. Install a new sealing
washer to the evaporator outlet hose. 9. Install the evaporator outlet hose to the compressor hose.
10. Install the evaporator outlet hose nut to the evaporator outlet hose.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2812
Tighten the nut to 20 N.m (15 lb ft).
11. Install a new sealing washer to the compressor hose at the condenser. 12. Install the
compressor hose to the condenser. 13. Install the compressor hose nut to the condenser.
Tighten the nut to 20 N.m (15 lb ft).
14. Install the compressor hose retainer nut to the battery box.
Tighten the nut to 9 N.m (80 lb in).
15. Install the left headlamp. 16. Recharge the A/C system. Refer to Refrigerant Recovery and
Recharging. See: Heating and Air Conditioning/Service and Repair/Refrigerant
Recovery and Recharging
17. Test the affected A/C joints for leaks using J 39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2813
Hose/Line HVAC: Service and Repair Evaporator Hose Replacement - Outlet
Evaporator Hose Replacement - Outlet
Tools Required
J 39400-A Halogen Leak Detector
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Heating and Air
Conditioning/Service and Repair/Refrigerant
Recovery and Recharging
2. Remove the evaporator outlet hose nut from the evaporator outlet hose. 3. Remove the
evaporator outlet hose from the compressor hose.
4. Remove the evaporator outlet hose and liquid line retainer plate nut from the thermal expansion
valve (TXV). 5. Remove the evaporator outlet hose and liquid line from the TXV.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2814
6. Remove evaporator outlet hose from the vehicle. 7. Remove and discard the sealing washers
from the evaporator outlet hose and the compressor hose. 8. Install protective caps to the TXV, the
liquid line, and the compressor hose to prevent contamination and desiccant saturation.
Installation Procedure
1. Remove the protective caps from the TXV, the liquid line, and the compressor hose. 2. Install
new sealing washers to the evaporator outlet hose, liquid line, and the compressor hose. 3. Install
the evaporator outlet hose and the liquid line to the TXV.
Notice: Refer to Fastener Notice.
4. Install the evaporator outlet hose and the liquid line nut to the TXV.
Tighten the nut to 20 N.m (15 lb ft).
5. Install the evaporator outlet hose to the compressor hose.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2815
6. Install the evaporator outlet hose nut to the evaporator outlet hose.
Tighten the nut to 20 N.m (15 lb ft).
7. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging. See: Heating and Air
Conditioning/Service and Repair/Refrigerant
Recovery and Recharging
8. Test the affected A/C joints for leaks using J 39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2816
Hose/Line HVAC: Service and Repair Liquid Line Replacement
Liquid Line Replacement
Tools Required
J 39400-A Halogen Leak Detector
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Heating and Air
Conditioning/Service and Repair/Refrigerant
Recovery and Recharging
2. Remove the left headlamp. 3. Remove the surge tank. 4. Remove the washer bottle. 5. Remove
the battery. 6. Remove the battery box bolts from the battery box. 7. Disconnect the negative
battery cable nut from the wheelhouse.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2817
8. Remove the nut retaining the liquid line to the strut tower. 9. Disconnect the harness and vent
hose retainers from the liquid line.
10. Remove the evaporator outlet hose and liquid line retainer plate nut from the thermal expansion
valve (TXV). 11. Remove the evaporator outlet hose and liquid line from the TXV.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2818
12. Remove the liquid line nut from the condenser. 13. Remove the liquid line from the condenser.
14. Remove the bolt retaining the liquid line to the body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2819
15. Position the battery box inboard to allow for routing of the liquid line. 16. Route the liquid line
above the battery box and the ground lug. 17. Lift the rear portion of the liquid line upward and
remove the liquid line from the vehicle. 18. Remove and discard the sealing washer from the liquid
line. 19. Install protective caps to the condenser, the evaporator outlet hose, and the TXV to
prevent contamination and desiccant saturation.
Installation Procedure
1. Route the liquid line below the battery box and the ground lug.
Notice: Refer to Fastener Notice.
2. Connect the negative battery cable nut to the wheelhouse.
Tighten the nut to 12 N.m (106 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2820
3. Remove the protective caps from the condenser, the evaporator outlet hose, and the TXV. 4.
Install the new sealing washer to the liquid line. 5. Route the condenser end of the liquid line into
position. 6. Install the liquid line to the condenser.
Important: Use a large pair of pliers to hold the fitting while tightening the nut. Be careful not to twist
the line.
7. Install the liquid line nut to the condenser.
Tighten the nut to 20 N.m (15 lb ft).
8. Install the bolt to retain the liquid line to the body.
Tighten the nut to 9 N.m (80 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2821
9. Remove the protective cap from the TXV, the liquid line, and the evaporator outlet hose.
10. Install new seal washers to the liquid line and the evaporator outlet hose. 11. Install the liquid
line and the evaporator outlet hose to the TXV. 12. Install the liquid line and evaporator outlet hose
retainer plate nut to the TXV.
Tighten the nut to 20 N.m (15 lb ft).
13. Install the four battery box bolts to the inside of the battery box.
Tighten the nut to 15 N.m (11 lb ft).
14. Install the battery box bolt to the outside of the battery box.
Tighten the nut to 10 N.m (86 lb in).
15. Install the battery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Hose/Line HVAC > Component Information > Service and Repair >
Compressor Hose Assembly Replacement > Page 2822
16. Install the liquid line to the strut tower. 17. Install the liquid line nut to the strut tower.
Tighten the nut to 9 N.m (80 lb in).
18. Connect the harness and vent hose retainers to the liquid line. 19. Install the surge tank. 20.
Install the washer bottle. 21. Install the left headlamp. 22. Recharge the A/C system. Refer to
Refrigerant Recovery and Recharging. See: Heating and Air Conditioning/Service and
Repair/Refrigerant
Recovery and Recharging
23. Test the affected A/C joints for leaks using J 39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Radiator Hose > Component Information > Service and Repair >
Radiator Inlet Hose Replacement
Radiator Hose: Service and Repair Radiator Inlet Hose Replacement
Radiator Inlet Hose Replacement (Chevrolet)
Removal Procedure
1. Drain the coolant. 2. Remove the upper fascia retainers from the radiator support. 3. Remove the
upper radiator bracket bolt from the radiator support. 4. Remove the upper radiator bracket from
the radiator. 5. Remove the radiator inlet hose clamp from the radiator.
6. Remove the radiator inlet hose from the radiator.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Radiator Hose > Component Information > Service and Repair >
Radiator Inlet Hose Replacement > Page 2827
7. Remove the radiator inlet hose clamp from the engine. 8. Remove the radiator inlet hose from
the engine.
Installation Procedure
1. Install the radiator inlet hose to the engine. 2. Install the radiator inlet hose clamp to the engine.
3. Install the radiator inlet hose to the radiator.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Radiator Hose > Component Information > Service and Repair >
Radiator Inlet Hose Replacement > Page 2828
4. Install the radiator inlet hose clamp to the radiator. 5. Install the upper radiator bracket to the
radiator.
Notice: Refer to Fastener Notice .
6. Install the upper radiator bracket bolt to the radiator support.
Tighten the bolt to 20 N.m (15 lb ft).
7. Install the upper fascia retainers to the radiator support. 8. Fill the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Radiator Hose > Component Information > Service and Repair >
Radiator Inlet Hose Replacement > Page 2829
Radiator Hose: Service and Repair Radiator Outlet Hose Replacement
Radiator Outlet Hose Replacement
Removal Procedure
1. Drain the coolant. 2. Remove the radiator outlet hose clamp from the engine. 3. Remove the
radiator outlet hose from the engine.
4. Raise and support the vehicle. 5. Remove the radiator outlet hose clamp from the radiator. 6.
Remove the radiator outlet hose from the radiator.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Hoses > Radiator Hose > Component Information > Service and Repair >
Radiator Inlet Hose Replacement > Page 2830
1. Install the radiator outlet hose to the radiator. 2. Install the radiator outlet hose clamp to the
radiator. 3. Lower the vehicle.
4. Install the radiator outlet hose to the engine. 5. Install the radiator outlet hose clamp to the
engine. 6. Fill the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Brake Fluid > Component Information > Specifications
Brake Fluid: Specifications
HYDRAULIC BRAKE SYSTEM
Delco Supreme 11 Brake Fluid or equivalent DOT-3 brake fluid.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Coolant > Component Information > Technical Service Bulletins >
Cooling System - DEX-COOL(R) Coolant Leak Detection Dye
Coolant: Technical Service Bulletins Cooling System - DEX-COOL(R) Coolant Leak Detection Dye
Bulletin No.: 05-06-02-002B
Date: January 18, 2008
INFORMATION
Subject: DEX-COOL(R) Coolant - New Leak Detection Dye J 46366 - Replaces J 29545-6
Models: 1996-2008 GM Passenger Cars and Light/Medium Duty Trucks* (including Saturn)
1997-2008 Isuzu T-Series Medium Duty Tilt Cab Models Built in Janesville and Flint 1999-2008
Isuzu N-Series Medium Duty Commercial Models with 5.7L or 6.0L Gas Engine
2003-2008 HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
*EXCLUDING 2006 and Prior Chevrolet Aveo, Epica, Optra, Vivant and Pontiac Matiz, Wave
Supercede:
This bulletin is being revised to include additional model years. Please discard Corporate Bulletin
Number 05-06-02-002A (Section 06 - Engine/Propulsion System).
Leak detection dye P/N 12378563 (J 29545-6) (in Canada P/N 88900915) may cause
DEX-COOL(R) coolant to appear green in a black vessel making it appear to be conventional
(green) coolant. This may cause a technician to add conventional coolant to a low DEX-COOL(R)
system thus contaminating it. The green DEX-COOL(R) appearance is caused by the color of the
leak detection dye which alters the color of the DEX-COOL(R) coolant.
A new leak detection dye P/N 89022219 (J 46366) (in Canada P/N 89022220) has been released
that does not alter the appearance of the DEX-COOL(R) coolant. When adding the new leak
detection dye the color of the DEX-COOL(R) coolant will not change. For detecting leaks on any
system that uses DEX-COOL(R) leak detection dye P/N 89022219 (in Canada P/N 89022220)
should be used. The new leak detection dye can be used with both conventional and
DEX-COOL(R) coolant.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Coolant > Component Information > Technical Service Bulletins >
Cooling System - DEX-COOL(R) Coolant Leak Detection Dye > Page 2839
Coolant: Technical Service Bulletins Cooling System - Coolant Recycling Information
Bulletin No.: 00-06-02-006D
Date: August 15, 2006
INFORMATION
Subject: Engine Coolant Recycling and Warranty Information
Models: 2007 and Prior GM Passenger Cars and Trucks (Including Saturn) 2007 and Prior
HUMMER Vehicles 2005-2007 Saab 9-7X
Attention:
Please address this bulletin to the Warranty Claims Administrator and the Service Manager.
Supercede:
This bulletin is being revised to adjust the title and Include Warranty Information. Please discard
Corporate Bulletin Number 00-06-02-006C (Section 06 - Engine/Propulsion System).
Coolant Reimbursement Policy
General Motors supports the use of recycled engine coolant for warranty repairs/service, providing
a GM approved engine coolant recycling system is used. Recycled coolant will be reimbursed at
the GMSPO dealer price for new coolant plus the appropriate mark-up. When coolant replacement
is required during a warranty repair, it is crucial that only the relative amount of engine coolant
concentrate be charged, not the total diluted volume. In other words: if you are using two gallons of
pre-diluted (50:50) recycled engine coolant to service a vehicle, you may request reimbursement
for one gallon of GM Goodwrench engine coolant concentrate at the dealer price plus the
appropriate warranty parts handling allowance.
Licensed Approved DEX-COOL(R) Providers
Important:
USE OF NON-APPROVED VIRGIN OR RECYCLED DEX-COOL(R) OR DEVIATIONS IN THE
FORM OF ALTERNATE CHEMICALS OR ALTERATION OF EQUIPMENT, WILL VOID THE GM
ENDORSEMENT, MAY DEGRADE COOLANT SYSTEM INTEGRITY AND PLACE THE
COOLING SYSTEM WARRANTY UNDER JEOPARDY.
Shown in Table 1 are the only current licensed and approved providers of DEX-COOL(R). Products
that are advertised as "COMPATIBLE" or "RECOMMENDED" for use with DEX-COOL(R) have not
been tested or approved by General Motors. Non-approved coolants may degrade the
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Chevrolet Workshop Manuals > Maintenance > Fluids > Coolant > Component Information > Technical Service Bulletins >
Cooling System - DEX-COOL(R) Coolant Leak Detection Dye > Page 2840
coolant system integrity and will no longer be considered a 5 yr/150,000 mile (240,000 km) coolant.
Coolant Removal Services/Recycling
The tables include all coolant recycling processes currently approved by GM. Also included is a
primary phone number and demographic information. Used DEX-COOL(R) can be combined with
used conventional coolant (green) for recycling. Depending on the recycling service and/or
equipment, it is then designated as a conventional 2 yr/30,000 mile (50,000 km) coolant or
DEX-COOL(R) 5 yr/150,000 mile (240,000 km) coolant. Recycled coolants as designated in this
bulletin may be used during the vehicle(s) warranty period.
DEX-COOL(R) Recycling
The DEX-COOL(R) recycling service listed in Table 2 has been approved for recycling waste
engine coolants (DEX-COOL) or conventional) to DEX-COOL(R) with 5 yr/150,000 mile (240,000
km) usability. Recycling Fluid Technologies is the only licensed provider of Recycled
DEX-COOL(R) meeting GM6277M specifications and utilizes GM approved inhibitor packages.
This is currently a limited program being monitored by GM Service Operations which will be
expanded as demand increases.
Conventional (Green) Recycling
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Coolant > Component Information > Technical Service Bulletins >
Cooling System - DEX-COOL(R) Coolant Leak Detection Dye > Page 2841
Processes shown in the Table 3 are capable of recycling waste engine coolants (DEX-COOL(R) or
conventional) to a conventional (green) coolant. Recycling conventional coolant can be
accomplished at your facility by a technician using approved EQUIPMENT (listed by model number
in Table 3), or by an approved coolant recycling SERVICE which may recycle the coolant at your
facility or at an offsite operation. Refer to the table for GM approved coolant recyclers in either of
these two categories. Should you decide to recycle the coolant yourself, strict adherence to the
operating procedures is imperative. Use ONLY the inhibitor chemicals supplied by the respective
(GM approved) recycling equipment manufacturer.
Sealing Tablets
Cooling System Sealing Tablets (Seal Tabs) should not be used as a regular maintenance item
after servicing an engine cooling system. Discoloration of coolant can occur if too many seal tabs
have been inserted into the cooling system. This can occur if seal tabs are repeatedly used over
the service life of a vehicle. Where appropriate, seal tabs may be used if diagnostics fail to repair a
small leak in the cooling system. When a condition appears in which seal tabs may be
recommended, a specific bulletin will be released describing their proper usage.
Water Quality
The integrity of the coolant is dependent upon the quality of DEX-COOL(R) and water.
DEX-COOL(R) is a product that has enhanced protection capability as well as an extended service
interval. These enhanced properties may be jeopardized by combining DEX-COOL(R) with poor
quality water. If you suspect the water in your area of being poor quality, it is recommended you
use distilled or de-ionized water with DEX-COOL(R).
"Pink" DEX-COOL(R)
DEX-COOL(R) is orange in color to distinguish it from other coolants. Due to inconsistencies in the
mixing of the dyes used with DEX-COOL(R), some batches may appear pink after time. The color
shift from orange to pink does not affect the integrity of the coolant, and still maintains the 5
yr/150,000 mile (240,000 km) service interval.
Back Service
Only use DEX-COOL(R) if the vehicle was originally equipped with DEX-COOL(R).
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Chevrolet Workshop Manuals > Maintenance > Fluids > Coolant > Component Information > Technical Service Bulletins >
Cooling System - DEX-COOL(R) Coolant Leak Detection Dye > Page 2842
Contamination
Mixing conventional green coolant with DEX-COOL(R) will degrade the service interval from 5
yrs./150,000 miles (240,000 km) to 2 yrs./30,000 miles (50,000 km) if left in the contaminated
condition. If contamination occurs, the cooling system must be flushed twice immediately and
re-filled with a 50/50 mixture of DEX-COOL(R) and clean water in order to preserve the enhanced
properties and extended service interval of DEX-COOL(R).
After 5 years/150,000 miles (240,000 km)
After 5 yrs/150,000 miles (240,000 km), the coolant should be changed, preferably using a coolant
exchanger. If the vehicle was originally equipped with DEX-COOL(R) and has not had problems
with contamination from non-DEX-COOL(R) coolants, then the service interval remains the same,
and the coolant does not need to be changed for another 5 yrs/150,000 miles (240,000 km)
Equipment (Coolant Exchangers)
The preferred method of performing coolant replacement is to use a coolant exchanger. A coolant
exchanger can replace virtually all of the old coolant with new coolant. Coolant exchangers can be
used to perform coolant replacement without spillage, and facilitate easy waste collection. They
can also be used to lower the coolant level in a vehicle to allow for less messy servicing of cooling
system components. It is recommended that you use a coolant exchanger with a vacuum feature
facilitates removing trapped air from the cooling system. This is a substantial time savings over
repeatedly thermo cycling the vehicle and topping-off the radiator. The vacuum feature also allows
venting of a hot system to relieve system pressure. Approved coolant exchangers are available
through the GMDE (General Motors Dealer Equipment) program.
For refilling a cooling system that has been partially or fully drained for repairs other than coolant
replacement, the Vac-N-Fill Coolant Refill Tool (GE-47716) is recommended to facilitate removal of
trapped air from the cooling system during refill.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Coolant > Component Information > Specifications > Capacity
Specifications
Coolant: Capacity Specifications
Cooling System ...................................................................................................................................
................................................ 10.5 quarts (9.9 liters)
NOTE: All capacities are approximate. When adding, be sure to fill to the approximate level.
Recheck fluid level after filling.
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Specifications > Page 2845
Coolant: Fluid Type Specifications
ENGINE COOLANT
The cooling system in your vehicle is filled with DEX-COOL engine coolant. This coolant is
designed to remain in your vehicle for 5 years or 150,000 miles (240 000 km), whichever occurs
first, if you add only DEX-COOL extended life coolant.
A 50/50 mixture of clean, drinkable water and DEX-COOL coolant will:
- Give freezing protection down to -34°F (-37°C).
- Give boiling protection up to 265°F (129°C).
- Protect against rust and corrosion.
- Help keep the proper engine temperature.
- Let the warning lights and gages work as they should.
NOTICE: Using coolant other than DEX-COOL may cause premature engine, heater core or
radiator corrosion. In addition, the engine coolant may require changing sooner, at 30,000 miles
(50 000 km) or 24 months, whichever occurs first. Any repairs would not be covered by your
warranty. Always use DEX-COOL (silicate-free) coolant in your vehicle.
WHAT TO USE
Use a mixture of one-half clean, drinkable water and one-half DEX-COOL coolant which won't
damage aluminum parts. If you use this coolant mixture, you don't need to add anything else.
CAUTION: Adding only plain water to your cooling system can be dangerous. Plain water, or some
other liquid such as alcohol, can boil before the proper coolant mixture will. Your vehicle's coolant
warning system is set for the proper coolant mixture. With plain water or the wrong mixture, your
engine could get too hot but you would not get the overheat warning. Your engine could catch fire
and you or others could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL
coolant.
NOTICE: If you use an improper coolant mixture, your engine could overheat and be badly
damaged. The repair cost would not be covered by your warranty. Too much water in the mixture
can freeze and crack the engine, radiator, heater core and other parts.
If you have to add coolant more than four times a year, check your cooling system.
NOTICE: If you use the proper coolant, you do not have to add extra inhibitors or additives which
claim to improve the system. These can be harmful.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Fluid - A/T > Component Information > Technical Service Bulletins
> A/T - Water Or Coolant Contamination Information
Fluid - A/T: Technical Service Bulletins A/T - Water Or Coolant Contamination Information
INFORMATION
Bulletin No.: 08-07-30-035B
Date: November 01, 2010
Subject: Information on Water or Ethylene Glycol in Transmission Fluid
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks with Automatic Transmission
Supercede: This bulletin is being revised to update model years. Please discard Corporate Bulletin
Number 08-07-30-035A (Section 07 - Transmission/Transaxle).
Water or ethylene glycol in automatic transmission fluid (ATF) is harmful to internal transmission
components and will have a negative effect on reliability and durability of these parts. Water or
ethylene glycol in ATF will also change the friction of the clutches, frequently resulting in shudder
during engagement or gear changes, especially during torque converter clutch engagement.
Indications of water in the ATF may include:
- ATF blowing out of the transmission vent tube.
- ATF may appear cloudy or, in cases of extreme contamination, have the appearance of a
strawberry milkshake.
- Visible water in the oil pan.
- A milky white substance inside the pan area.
- Spacer plate gaskets that appear to be glued to the valve body face or case.
- Spacer plate gaskets that appear to be swollen or wrinkled in areas where they are not
compressed.
- Rust on internal transmission iron/steel components.
If water in the ATF has been found and the source of the water entry has not been identified, or if a
leaking in-radiator transmission oil cooler is suspected (with no evidence of cross-contamination in
the coolant recovery reservoir), a simple and quick test kit is available that detects the presence of
ethylene glycol in ATF. The "Gly-Tek" test kit, available from the Nelco Company, should be
obtained and the ATF tested to make an accurate decision on the need for radiator replacement.
This can help to prevent customer comebacks if the in-radiator transmission oil cooler is leaking
and reduce repair expenses by avoiding radiator replacement if the cooler is not leaking. These
test kits can be obtained from:
Nelco Company
Test kits can be ordered by phone or through the website listed above. Orders are shipped
standard delivery time but can be shipped on a next day delivery basis for an extra charge. One
test kit will complete 10 individual fluid sample tests. For vehicles repaired under warranty, the cost
of the complete test kit plus shipping charges should be divided by 10 and submitted on the
warranty claim as a net item.
The transmission should be repaired or replaced based on the normal cost comparison procedure.
Important If water or coolant is found in the transmission, the following components MUST be
replaced.
- Replace all of the rubber-type seals.
- Replace all of the composition-faced clutch plates and/or bands.
- Replace all of the nylon parts.
- Replace the torque converter.
- Thoroughly clean and rebuild the transmission, using new gaskets and oil filter.
Important The following steps must be completed when repairing or replacing.
Flush and flow check the transmission oil cooler using J 45096. Refer to Corporate Bulletin Number
02-07-30-052F- Automatic Transmission Oil Cooler Flush and Flow Test Essential Tool J 45096
TransFlow.
- Thoroughly inspect the engine cooling system and hoses and clean/repair as necessary.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Fluid - A/T > Component Information > Technical Service Bulletins
> A/T - Water Or Coolant Contamination Information > Page 2850
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Fluid - A/T > Component Information > Specifications > Capacity
Specifications
Fluid - A/T: Capacity Specifications
Fluid Capacity Specifications
AUTOMATIC TRANSMISSION Remove Drain Plug/Fill .....................................................................
.................................................................................................... 4.06 liters (4.29 qts) Overhaul ........
..............................................................................................................................................................
............................... 7.8 liters (8.2 qts)
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Chevrolet Workshop Manuals > Maintenance > Fluids > Fluid - A/T > Component Information > Specifications > Capacity
Specifications > Page 2853
Fluid - A/T: Fluid Type Specifications
AUTOMATIC TRANSAXLE FLUID Use only T-IV Automatic Transmission Fluid (GM Part No. U.S.
88900925, in Canada 22689186).
NOTICE: Use of the incorrect automatic transaxle fluid may damage your vehicle, and the
damages may not be covered by your warranty.
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Chevrolet Workshop Manuals > Maintenance > Fluids > Fluid - A/T > Component Information > Specifications > Page 2854
Fluid - A/T: Testing and Inspection
Transmission Fluid Checking
Description
Inspection of the transaxle fluid level, correct type of fluid, and the condition of the fluid for accurate
operation of the transaxle.
Procedure
Important: Routine inspection of the transaxle fluid is not required. Transaxle fluid inspection is only
required if there is a symptom indicating a concern with the fluid.
1. Park the vehicle on a flat level surface. 2. Operate the vehicle in order for the transmission fluid
temperature to reach the normal operating range.
Transaxle normal temperature: 60-70 degrees C (140-158 degrees F)
3. With the engine at idle, manual shift through all transaxle ranges and return to the PARK
position. Leave the engine idling. 4. Clean any dirt or debris away from the area of the transaxle
fluid level indicator. 5. Remove the transaxle fluid level indicator bolt (1) from the transaxle. 6.
Remove the transaxle fluid level indicator (2). 7. Wipe away any transaxle fluid from the indicator.
8. Insert the indicator into the transaxle until fully seated.
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Important: Inspecting transaxle fluid level when not at normal temperature can give an incorrect
measurement. The transaxle fluid expands when warm.
9. Remove the indicator and inspect the level and the condition of the oil on the indicator:
* Transmission fluid level at normal operating temperature (1)
* Transmission fluid level if cold (2)
10. If the fluid level is incorrect inspect for the following conditions:
* Fluid below level, inspect for a leak. Refer to Fluid Leak Diagnosis or Automatic Transmission
Fluid Leaks. See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Component Tests and General Diagnostics/Fluid Leak Diagnosis
* Fluid above level, inspect for contamination of the fluid.
Important: The tranaxle uses T-IV fluid, GM P/N 88900925 (Canadian P/N 22689186). The fluid is
normally red in color. The oil may darken in color with more miles on a vehicle.
11. Inspect the condition of the fluid for the following conditions:
* Excessively dirty with particles in the fluid If there are no driveablity concerns, replace the fluid. Refer to Transaxle Fluid Replacement.
- If driveablity concerns are present disassemble and inspect for a cause.
* Burnt smell -
Inspect for the correct fluid.
- Inspect for conditions that may of cause overheating of the transmission fluid.
- If there are no driveablity concerns, replace the fluid. Refer to Transaxle Fluid Replacement.
- If driveablity concerns are present disassemble and inspect for cause.
- Inspect the transmission oil cooler system for functioning properly. Refer to Automatic
Transmission Oil Cooler Flushing and Flow Test. See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Testing and Inspection/Component Tests and General
Diagnostics/Automatic Transmission Oil Cooler Flushing and Flow Test
* Black in color Disassemble the transaxle and inspect for components that may have over heated.
- Inspect the transmission oil cooler system for functioning properly. Refer to Automatic
Transmission Oil Cooler Flushing and Flow Test. See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Testing and Inspection/Component Tests and General
Diagnostics/Automatic Transmission Oil Cooler Flushing and Flow Test
* Milky or white tint in color from coolant or water Inspect for failure of the transaxle oil cooler. Refer to Engine Coolant/Water in Transmission. See:
Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component
Tests and General Diagnostics/Engine Coolant/Water in Transmission
- Inspect for missing or improperly routed vent hose.
- Inspect for missing fill plug.
12. Install the fluid level indicator.
Notice: Refer to Fastener Notice in Service Precautions.
13. Install the fluid indicator bolt.
Tighten the fluid indicator bolt to 10 N.m (89 lb in).
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Chevrolet Workshop Manuals > Maintenance > Fluids > Fluid - A/T > Component Information > Specifications > Page 2856
Fluid - A/T: Service and Repair
Transaxle Fluid Replacement
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the drain plug and drain fluid.
Allow at least 5 minutes for the fluid to drain completely. 3. Remove the gasket from the drain plug
and discard.
Installation Procedure
1. Install the new gasket on the drain plug.
Notice: Refer to Component Fastener Tightening Notice.
2. Install the drain plug.
Tighten the drain plug to 40 N.m (30 lb ft).
3. Make sure vehicle is level. 4. Remove the fluid level indicator located behind the front transaxle
mount.
Notice: Do not remove the 3rd gear anchor band bolt located on top of the transmission for
checking fluid or adding fluid. Removing the bolt will dislocate internal components and require the
transmission to be removed from the vehicle and disassembled for repair.
Important: Dexron(R)III automatic transmission fluid is not compatible with this transaxle. If
Dexron(R)III ATF is used, transaxle failure will result. Refer to Sealers, Adhesives, and Lubricants.
5. Add approximately 3.1 L (3.3 Qt) of GM T-IV fluid to the transaxle, using the fluid level indicator
location.
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Important: If the check is necessary at a low oil temperature of 30-40°C (86-104°F), perform check
using the COLD range on the level gage. However, the fluid must be re-checked at the proper fluid
temperature.
6. Start engine and operate vehicle until transaxle fluid temperature reaches 60-70°C (140-158°F).
7. Apply parking brake. 8. Depress brake pedal and move shift lever slowly through all gear ranges
from park (P) to low (L), pausing for about 3 seconds in each range.
Return shift lever to park (P) range at idle condition.
9. Pull level gauge out again and check if fluid level is within the HOT range.
10. If fluid is not within the correct level, adjust accordingly:
1. If fluid is below the HOT range, add enough to bring it up to the correct level. 2. If fluid is above
HOT range, drain excess fluid.
11. Install the fluid level indicator.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Fluid - Differential > Component Information > Service and Repair >
Rear Axle Lubricant Level Inspection
Fluid - Differential: Service and Repair Rear Axle Lubricant Level Inspection
Rear Axle Lubricant Level Inspection
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Fluid - Differential > Component Information > Service and Repair >
Rear Axle Lubricant Level Inspection > Page 2862
Fluid - Differential: Service and Repair Rear Axle Lubricant Replacement
Rear Axle Lubricant Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Engine Oil > Component Information > Technical Service Bulletins
> Engine - GM dexos 1 and dexos 2(R) Oil Specifications
Engine Oil: Technical Service Bulletins Engine - GM dexos 1 and dexos 2(R) Oil Specifications
INFORMATION
Bulletin No.: 11-00-90-001
Date: March 14, 2011
Subject: Global Information for GM dexos1(TM) and GM dexos2(TM) Engine Oil Specifications for
Spark Ignited and Diesel Engines, Available Licensed Brands, and Service Fill for Adding or
Complete Oil Change
Models:
2012 and Prior GM Passenger Cars and Trucks Excluding All Vehicles Equipped with
Duramax(TM) Diesel Engines
GM dexos 1(TM) Information Center Website
Refer to the following General Motors website for dexos 1(TM) information about the different
licensed brands that are currently available: http://www.gmdexos.com
GM dexos 1(TM) Engine Oil Trademark and Icons
The dexos(TM) specification and trademarks are exclusive to General Motors, LLC.
Only those oils displaying the dexos‹›(TM) trademark and icon on the front label meet the
demanding performance requirements and stringent quality standards set forth in the dexos‹›(TM)
specification.
Look on the front label for any of the logos shown above to identify an authorized, licensed dexos
1(TM) engine oil.
GM dexos 1(TM) Engine Oil Specification
Important General Motors dexos 1(TM) engine oil specification replaces the previous General
Motors specifications GM6094M, GM4718M and GM-LL-A-025 for most GM gasoline engines. The
oil specified for use in GM passenger cars and trucks, PRIOR to the 2011 model year remains
acceptable for those previous vehicles. However, dexos 1(TM) is backward compatible and can be
used in those older vehicles.
In North America, starting with the 2011 model year, GM introduced dexos 1(TM) certified engine
oil as a factory fill and service fill for gasoline engines. The reasons for the new engine oil
specification are as follows:
- To meet environmental goals such as increasing fuel efficiency and reducing engine emissions.
- To promote long engine life.
- To minimize the number of engine oil changes in order to help meet the goal of lessening the
industry's overall dependence on crude oil.
dexos 1(TM) is a GM-developed engine oil specification that has been designed to provide the
following benefits:
- Further improve fuel economy, to meet future corporate average fuel economy (CAFE)
requirements and fuel economy retention by allowing the oil to maintain its fuel economy benefits
throughout the life of the oil.
- More robust formulations for added engine protection and aeration performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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> Engine - GM dexos 1 and dexos 2(R) Oil Specifications > Page 2867
- Support the GM Oil Life System, thereby minimizing the replacement of engine oil, before its life
has been depleted.
- Reduce the duplication of requirements for a large number of internal GM engine oil
specifications.
International Lubricants Standardization and Approval Committee (ILSAC)
GF-5 Standard
In addition to GM dexos 1(TM), a new International Lubricants Standardization and Approval
Committee (ILSAC) standard called GF-5, was introduced in October 2010.
- There will be a corresponding API category, called: SN Resource Conserving. The current GF-4
standard was put in place in 2004 and will become obsolete in October 2011. Similar to dexos
1(TM), the GF-5 standard will use a new fuel economy test, Sequence VID, which demands a
statistically significant increase in fuel economy versus the Sequence VIB test that was used for
GF-4.
- It is expected that all dexos 1(TM) approved oils will be capable of meeting the GF-5 standard.
However, not all GF-5 engine oils will be capable of meeting the dexos 1(TM) specification.
- Like dexos(TM), the new ILSAC GF-5 standard will call for more sophisticated additives. The API
will begin licensing marketers during October 2010, to produce and distribute GF-5 certified
products, which are expected to include SAE 0W-20, 0W-30, 5W-20, 5W-30 and 10W-30 oils.
Corporate Average Fuel Economy (CAFE) Requirements Effect on Fuel Economy
Since CAFE standards were first introduced in 1974, the fuel economy of cars has more than
doubled, while the fuel economy of light trucks has increased by more than 50 percent. Proposed
CAFE standards call for a continuation of increased fuel economy in new cars and trucks. To meet
these future requirements, all aspects of vehicle operation are being looked at more critically than
ever before.
New technology being introduced in GM vehicles designed to increase vehicle efficiency and fuel
economy include direct injection, cam phasing, turbocharging and active fuel management (AFM).
The demands of these new technologies on engine oil also are taken into consideration when
determining new oil specifications. AFM for example can help to achieve improved fuel economy.
However alternately deactivating and activating the cylinders by not allowing the intake and
exhaust valves to open contributes to additional stress on the engine oil.
Another industry trend for meeting tough fuel economy mandates has been a shift toward lower
viscosity oils.
dexos 1(TM) will eventually be offered in several viscosity grades in accordance with engine needs:
SAE 0W-20, 5W-20, 0W-30 and 5W-30.
Using the right viscosity grade oil is critical for proper engine performance. Always refer to the
Maintenance section of a vehicle Owner Manual for the proper viscosity grade for the engine being
serviced.
GM Oil Life System in Conjunction With dexos (TM) Supports Extended Oil Change Intervals
To help conserve oil while maintaining engine protection, many GM vehicles are equipped with the
GM Oil Life System. This system can provide oil change intervals that exceed the traditional 3,000
mile (4,830 km) recommendation.
The dexos (TM) specification, with its requirements for improved oil robustness, compliments the
GM Oil Life System by supporting extended oil change intervals over the lifetime of a vehicle.
If all GM customers with GM Oil Life System equipped vehicles would use the system as intended,
GM estimates that more than 100 million gallons of oil could be saved annually.
GM dexos 2(TM) Information Center Website
Refer to the following General Motors website for dexos 2(TM) information about the different
licensed brands that are currently available: http://www.gmdexos.com
GM dexos 2(TM) Engine Oil Trademark and Icons
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Engine Oil > Component Information > Technical Service Bulletins
> Engine - GM dexos 1 and dexos 2(R) Oil Specifications > Page 2868
The dexos (TM) specification and trademarks are exclusive to General Motors, LLC.
Only those oils displaying the dexos (TM) trademark and icon on the front label meet the
demanding performance requirements and stringent quality standards set forth in the dexos
(TM)specification.
Look on the front label for any of the logos shown above to identify an authorized, licensed dexos
2(TM) engine oil.
GM dexos 2(TM) Engine Oil Specification
- dexos 2(TM) is approved and recommended by GM for use in Europe starting in model year 2010
vehicles, regardless of where the vehicle was manufactured.
- dexos 2(TM) is the recommended service fill oil for European gasoline engines.
Important The Duramax(TM) diesel engine is the exception and requires lubricants meeting
specification CJ-4.
- dexos 2(TM) is the recommended service fill oil for European light-duty diesel engines and
replaces GM-LL-B-025 and GM-LL-A-025.
- dexos 2(TM) protects diesel engines from harmful soot deposits and is designed with limits on
certain chemical components to prolong catalyst life and protect expensive emission reduction
systems. It is a robust oil, resisting degradation between oil changes and maintaining optimum
performance longer.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Engine Oil > Component Information > Technical Service Bulletins
> Engine - GM dexos 1 and dexos 2(R) Oil Specifications > Page 2869
Engine Oil: Technical Service Bulletins Engine - Revised Engine Oil Capacity
INFORMATION
Bulletin No.: 08-06-01-007
Date: March 14, 2008
Subject: Updated Engine Oil Capacity for 3.4L Engine (RPO LNJ)
Models: 2005-2008 Chevrolet Equinox 2006-2008 Pontiac Torrent
with 3.4L V6 Engine (VIN F - RPO LNJ)
The purpose of this bulletin is to update the Engine Oil Capacities for the 3.4L V6 Engine (RPO
LNJ) found in the Chevrolet Equinox and Pontiac Torrent.
The engine oil capacity with an oil filter replacement has been revised to 4.3 L (4.5 qts). The
original capacity was 3.8L (4.0 qts). This revision has been made in the Maintenance and
Lubrication, Approximate Fluid Capacities and Engine Mechanical- 3.4L, Engine Mechanical
Specifications sections of SI. This change also applies to the Owners Manual.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Engine Oil > Component Information > Specifications > Capacity
Specifications
Engine Oil: Capacity Specifications
This capacity has been updated by TSB 08-06-01-007.
Engine Oil with Filter ............................................................................................................................
............................................... 4.5 quarts (4.3 liters)
NOTE: All capacities are approximate. When adding, be sure to fill to the approximate level.
Recheck fluid level after filling.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Engine Oil > Component Information > Specifications > Capacity
Specifications > Page 2872
Engine Oil: Fluid Type Specifications
ENGINE OIL TYPE
LOOK FOR TWO THINGS:
1.Your vehicle's engine requires oil meeting GM Standard GM6094M.
2.SAE 5W-30 is best for your vehicle. These numbers on an oil container show its viscosity, or
thickness. Do not use other viscosity oils such as SAE 20W-50. Oils meeting these requirements
should also have the starburst symbol on the container. This symbol indicates that the oil has been
certified by the American Petroleum Institute (API). You should look for this information on the oil
container, and use only those oils that are identified as meeting GM Standard GM6094M and have
the starburst symbol on the front of the oil container.
NOTICE: Use only engine oil identified as meeting GM Standard GM6094M and showing the
American Petroleum Institute Certified For Gasoline Engines starburst symbol. Failure to use the
recommended oil can result in engine damage not covered by your warranty.
GM Goodwrench oil meets all the requirements for your vehicle.
If you are in an area of extreme cold, where the temperature falls below -20°F (-29°C), it is
recommended that you use either an SAE 5W-30 synthetic oil or an SAE 0W-30 oil. Both will
provide easier cold starting and better protection for your engine at extremely low temperatures.
ENGINE OIL ADDITIVES Do not add anything to your oil. The recommended oils with the starburst
symbol that meet GM Standard GM6094M are all you will need for good performance and engine
protection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Engine Oil > Component Information > Specifications > Page 2873
Engine Oil: Service and Repair
Engine Oil and Oil Filter Replacement
Removal Procedure
1. Raise and support the vehicle. 2. Position the oil drain pan under the engine oil drain plug.
3. Remove the engine oil drain plug. 4. Clean and inspect the engine oil drain plug, replace if
necessary. 5. Clean and inspect the engine oil drain plug sealing surface on the oil pan, repair or
replace oil pan if necessary.
6. Remove the oil filter. 7. Clean and inspect the oil filter sealing area on the oil filter adapter, repair
or replace if necessary.
Installation Procedure
1. Lightly oil the replacement oil filter gasket with clean oil .
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Engine Oil > Component Information > Specifications > Page 2874
Notice: Refer to Component Fastener Tightening Notice .
2. Install the new oil filter.
Tighten the filter to 3/4 to 1 full turn, after the oil filter gasket contacts the oil filter mounting surface.
3. Install the engine oil drain plug.
Tighten the plug to 25 N.m (18 lb ft).
4. Remove the oil drain pan. 5. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Engine Oil > Component Information > Specifications > Page 2875
6. Remove the oil fill cap from the rocker arm cover. 7. Fill the engine with new engine oil. 8. Install
the oil fill cap to the rocker arm cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Power Steering Fluid > Component Information > Specifications
Power Steering Fluid: Specifications
POWER STEERING SYSTEM
GM Power Steering Fluid GM P/N 89021184 (Canadian P/N 89021186) or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Refrigerant > Component Information > Technical Service Bulletins
> A/C - Refrigerant Recovery/Recycling/Equipment
Refrigerant: Technical Service Bulletins A/C - Refrigerant Recovery/Recycling/Equipment
Bulletin No.: 08-01-38-001
Date: January 25, 2008
INFORMATION
Subject: Information On New GE-48800 CoolTech Refrigerant Recovery/Recharge Equipment
Models: 2008 and Prior GM Passenger Cars and Light Duty Trucks (Including Saturn) 2008 and
Prior HUMMER H2, H3 2005-2008 Saab 9-7X
Attention:
This bulletin is being issued to announce the release of GM approved Air Conditioning (A/C)
Refrigerant Recovery and Recharging Equipment that meets the new Society of Automotive
Engineers (SAE) J2788 Refrigerant Recovery Standards. The ACR2000 (J-43600) cannot be
manufactured in its current state after December 2007 and will be superseded by GE-48800.
The new J2788 standard does not require that GM Dealers replace their ACR2000 units.
ACR2000's currently in use are very capable of servicing today's refrigerant systems when used
correctly and can continue to be used. Details regarding the new SAE J2788 standard are outlined
in GM Bulletin 07-01-38-004.
Effective February 1 2008, new A/C Refrigerant Recovery/Recharging equipment (P/N GE-48800)
will be released as a required replacement for the previously essential ACR2000 (J-43600). This
equipment is SAE J2788 compliant and meets GM requirements for A/C Refrigerant System
Repairs on all General Motors vehicles, including Hybrid systems with Polyolester (POE)
refrigerant oil. This equipment will not be shipped as an essential tool to GM Dealerships.
In addition, this equipment is Hybrid compliant and designed to prevent oil cross contamination
when servicing Hybrid vehicles with Electric A/C Compressors that use POE refrigerant oil.
The ACR2000 (J-43600) will need to be retrofitted with a J-43600-50 (Hose - ACR2000 Oil Flush
Loop) to be able to perform Hybrid A/C service work. All Hybrid dealers will receive the J-43600-50,
with installation instructions, as a component of the Hybrid essential tool package. Dealerships that
do not sell Hybrids, but may need to service Hybrids, can obtain J-43600-50 from SPX Kent Moore.
Refer to GM Bulletin 08-01-39-001 for the ACR2000 Hose Flush procedure.
The High Voltage (HV) electric A/C compressor used on Two Mode Hybrid vehicles uses a
Polyolester (POE) refrigerant oil instead of a Polyalkylene Glycol (PAG) synthetic refrigerant oil.
This is due to the better electrical resistance of the POE oil and its ability to provide HV isolation.
Failure to flush the hoses before adding refrigerant to a Hybrid vehicle with an electric A/C
compressor may result in an unacceptable amount of PAG oil entering the refrigerant system. It
may cause a Battery Energy Control Module Hybrid Battery Voltage System Isolation Lost
Diagnostic Trouble Code (DTC P1AE7) to be set. Additionally, the A/C system warranty will be
voided.
Warranty Submission Requirements
The Electronically Generated Repair Data (snapshot summary) and printer functions have been
eliminated from the GE-48800. The VGA display and temperature probes were eliminated to
reduce equipment costs. As a result, effective immediately the 18 digit "Snapshot/Charge
Summary" code is no longer required for Air Conditioning (A/C) refrigerant system repairs that are
submitted for warranty reimbursement. The charge summary data from before and after system
repairs will continue to required, but documented on the repair order only. Both high and low
pressures and the recovery and charge amounts should be noted during the repair and entered on
the repair order. If using ACR2000 (J-43600), the "Snapshot/Charge Summary" printouts should
continue to be attached to the shops copy of the repair order.
The labor codes that are affected by this requirement are D3000 through D4500.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Refrigerant > Component Information > Technical Service Bulletins
> A/C - Refrigerant Recovery/Recycling/Equipment > Page 2883
Refrigerant: Technical Service Bulletins A/C - Contaminated R134A Refrigerant
Bulletin No.: 06-01-39-007
Date: July 25, 2006
INFORMATION
Subject: Contaminated R134a Refrigerant Found on Market for Automotive Air-Conditioning
Systems
Models: 2007 and Prior GM Passenger Cars and Trucks (including Saturn) 2007 and Prior
HUMMER H2, H3 2007 and Prior Saab 9-7X
Attention:
This bulletin should be directed to the Service Manager as well as the Parts Manager.
Commercially Available Contaminated R134a Refrigerant
Impurities have been found in new commercially available containers of R134a. High levels of
contaminates may cause decreased performance, and be detrimental to some air-conditioning
components. Accompanying these contaminates has been high levels of moisture.
Tip:
Excessive moisture may cause system concerns such as orifice tube freeze-up and reduced
performance.
Industry Reaction: New Industry Purity Standards
Due to the potential availability of these lower quality refrigerants, the Society of Automotive
Engineers (SAE), and the Air Conditioning and Refrigeration Industry (ARI) are in the process of
instituting reliable standards that will be carried on the labels of future R134a refrigerant containers.
This identifying symbol will be your assurance of a product that conforms to the minimum standard
for OEM Automotive Air-Conditioning use.
How Can You Protect Yourself Today?
It is recommended to use GM or ACDelco(R) sourced refrigerants for all A/C repair work. These
refrigerants meet General Motors own internal standards for quality and purity, insuring that your
completed repairs are as good as the way it left the factory.
Parts Information
The part numbers shown are available through GMSPO or ACDelco(R). The nearest ACDelco(R)
distributor in your area can be found by calling 1-800-223-3526 (U.S. Only).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Refrigerant > Component Information > Technical Service Bulletins
> A/C - Refrigerant Recovery/Recycling/Equipment > Page 2884
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Refrigerant > Component Information > Specifications > Capacity
Specifications
Refrigerant: Capacity Specifications
Refrigerant System Capacities
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Refrigerant > Component Information > Specifications > Capacity
Specifications > Page 2887
Refrigerant: Fluid Type Specifications
Air Conditioning Refrigerant
....................................................................................................................... R134a P/N 12356150
U.S. (10953485 Canada)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Refrigerant Oil > Component Information > Specifications >
Capacity Specifications
Refrigerant Oil: Capacity Specifications
Refrigerant System Capacities
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fluids > Refrigerant Oil > Component Information > Specifications >
Capacity Specifications > Page 2892
Refrigerant Oil: Fluid Type Specifications
PAG Oil GM P/N 12378526 for United States
PAG Oil GM P/N 88900060 for Canada
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Brake Bleeding > System Information > Service and Repair > Antilock Brake
System Automated Bleed Procedure
Brake Bleeding: Service and Repair Antilock Brake System Automated Bleed Procedure
Antilock Brake System Automated Bleed Procedure Caution: Refer to Brake Fluid Irritant Caution .
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
Important: Before performing the antilock brake system (ABS) Automated Bleed Procedure, first
perform a manual or pressure bleed of the base brake system. The automated bleed procedure is
recommended when one of the following conditions exist:
* Base brake system bleeding does not achieve the desired pedal height or feel
* Extreme loss of brake fluid has occurred
* Air ingestion is suspected in the secondary circuits of the brake modulator assembly
The ABS Automated Bleed Procedure uses a scan tool to cycle the system solenoid valves and run
the pump in order to purge any air from the secondary circuits. These circuits are normally closed
off, and are only opened during system initialization at vehicle start up and during ABS operation.
The automated bleed procedure opens these secondary circuits and allows any air trapped in
these circuits to flow out toward the brake corners.
Automated Bleed Procedure
Notice: The Auto Bleed Procedure may be terminated at any time during the process by pressing
the EXIT button. No further Scan Tool prompts pertaining to the Auto Bleed procedure will be
given. After exiting the bleed procedure, relieve bleed pressure and disconnect bleed equipment
per manufacturers instructions. Failure to properly relieve pressure may result in spilled brake fluid
causing damage to components and painted surfaces.
1. Raise and support the vehicle. 2. Remove all 4 tire and wheel assemblies. 3. Inspect the brake
system for leaks and visual damage. Repair or replace components as needed. 4. Lower the
vehicle. 5. Inspect the battery state of charge. 6. Install a scan tool. 7. Turn the ignition ON, with the
engine OFF. 8. With the scan tool, establish communications with the ABS system. Select Special
Functions. Select Automated Bleed from the Special Functions
menu.
9. Raise and support the vehicle.
10. Following the directions given on the scan tool, pressure bleed the base brake system. 11.
Follow the scan tool directions until the desired brake pedal height is achieved. 12. If the bleed
procedure is aborted, a malfunction exists. Perform the following steps before resuming the bleed
procedure:
* If a DTC is detected, refer to Diagnostic Trouble Code (DTC) List - Vehicle , and diagnose the
appropriate DTC.
* If the brake pedal feels spongy, perform the conventional brake bleed procedure again.
13. When the desired pedal height is achieved, press the brake pedal to inspect for firmness. 14.
Lower the vehicle. 15. Remove the scan tool. 16. Install the tire and wheel assemblies. 17. Inspect
the brake fluid level. 18. Road test the vehicle while inspecting that the pedal remains high and
firm.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Brake Bleeding > System Information > Service and Repair > Antilock Brake
System Automated Bleed Procedure > Page 2897
Brake Bleeding: Service and Repair Hydraulic Brake System Bleeding
Manual
Hydraulic Brake System Bleeding (Manual)
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Place a clean shop cloth beneath the brake master cylinder to catch brake fluid spills. 2. With the
ignition OFF and the brakes cool, apply the brakes 3-5 times, or until the brake pedal effort
increases significantly, in order to deplete the
brake booster power reserve.
3. If you have performed a brake master cylinder bench bleeding on this vehicle, or if you
disconnected the brake pipes from the master cylinder, or
if you have disconnected the brake pipes from the proportioning valve assembly or the brake
modulator assembly, you must perform the following steps to bleed air at the ports of the hydraulic
component:
1. If removal of the reservoir cap and diaphragm is necessary, clean the outside of the reservoir on
and around the cap prior to removal. 2. With the brake pipes installed securely to the master
cylinder, proportioning valve assembly, or brake modulator assembly, loosen and separate
one of the brake pipes from the port of the component. For the proportioning valve assembly or the
brake modulator assembly, perform these steps in the sequence of system flow; begin with the fluid
feed pipes from the master cylinder.
3. Allow a small amount of brake fluid to gravity bleed from the open port of the component. 4.
Reconnect the brake pipe to the component and tighten securely. 5. Have an assistant slowly
depress the brake pedal fully and maintain steady pressure on the pedal. 6. Loosen the same
brake pipe to purge air from the open port of the component. 7. Tighten the brake pipe, then have
the assistant slowly release the brake pedal. 8. Wait 15 seconds, then repeat steps 3.3-3.7 until all
air is purged from the same port of the component. 9. With the brake pipe installed securely to the
master cylinder, proportioning valve assembly, or brake modulator assembly, and after all air has
been purged from the first port of the component that was bled, loosen and separate the next brake
pipe from the component, then repeat steps 3.3-3.8 until each of the ports on the component has
been bled.
10. After completing the final component port bleeding procedure, ensure that each of the brake
pipe-to-component fittings is properly tightened.
4. Ensure the brake master cylinder reservoir remains at least half-full during this bleeding
procedure. Add fluid as needed to maintain the proper
level. Clean the outside of the reservoir on and around the reservoir cap prior to removing the cap
and diaphragm.
5. Install a proper box-end wrench onto the RIGHT REAR wheel hydraulic circuit bleeder valve. 6.
Install a transparent hose over the end of the bleeder valve. 7. Have an assistant slowly depress
the brake pedal fully and maintain steady pressure on the pedal. 8. Loosen the bleeder valve to
purge air from the wheel hydraulic circuit. 9. Tighten the bleeder valve, then have the assistant
slowly release the brake pedal.
10. Wait 15 seconds, then repeat steps 8-10 until all air is purged from the same wheel hydraulic
circuit. 11. With the right rear wheel hydraulic circuit bleeder valve tightened securely, and after all
air has been purged from the right rear hydraulic circuit,
install a proper box-end wrench onto the LEFT FRONT wheel hydraulic circuit bleeder valve.
12. Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11. 13. With
the left front wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left front hydraulic circuit,
install a proper box-end wrench onto the LEFT REAR wheel hydraulic circuit bleeder valve.
14. Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11. 15. With
the left rear wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left rear hydraulic circuit,
install a proper box-end wrench onto the RIGHT FRONT wheel hydraulic circuit bleeder valve.
16. Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11. 17. After
completing the final wheel hydraulic circuit bleeding procedure, ensure that each of the 4 wheel
hydraulic circuit bleeder valves is properly
tightened.
18. Slowly depress and release the brake pedal. Observe the feel of the brake pedal. 19. If the
brake pedal feels spongy, repeat the bleeding procedure again. If the brake pedal still feels spongy
after repeating the bleeding procedure,
perform the following steps:
1. Inspect the brake system for external leaks. 2. Pressure bleed the hydraulic brake system in
order to purge any air that may still be trapped in the system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Brake Bleeding > System Information > Service and Repair > Antilock Brake
System Automated Bleed Procedure > Page 2898
20. Turn the ignition key ON, with the engine OFF. Check to see if the brake system warning lamp
remains illuminated.
Important: DO NOT allow the vehicle to be driven until it is diagnosed and repaired.
21. If the brake system warning lamp remains illuminated. Refer to Symptoms - Hydraulic Brakes .
Pressure
Hydraulic Brake System Bleeding (Pressure)
Tools Required
* J 29532 Diaphragm Type Brake Pressure Bleeder, or equivalent
* J 44894-A Brake Pressure Bleeder Adapter
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Place a clean shop cloth beneath the brake master cylinder to catch brake fluid spills. 2. With the
ignition OFF and the brakes cool, apply the brakes 3-5 times, or until the brake pedal becomes
firm, in order to deplete the brake booster
power reserve.
3. If you have performed a brake master cylinder bench bleeding on this vehicle, or if you
disconnected the brake pipes from the master cylinder, or
if you have disconnected the brake pipes from the proportioning valve assembly or the brake
modulator assembly, you must perform the following steps to bleed air at the ports of the hydraulic
component:
1. If removal of the reservoir cap and diaphragm is necessary, clean the outside of the reservoir on
and around the cap prior to removal. 2. With the brake pipes installed securely to the master
cylinder, proportioning valve assembly, or brake modulator assembly, loosen and separate
one of the brake pipes from the port of the component. For the proportioning valve assembly or the
brake modulator assembly, perform these steps in the sequence of system flow; begin with the fluid
feed pipes from the master cylinder.
3. Allow a small amount of brake fluid to gravity bleed from the open port of the component. 4.
Reconnect the brake pipe to the component and tighten securely. 5. Have an assistant slowly
depress the brake pedal fully and maintain steady pressure on the pedal. 6. Loosen the same
brake pipe to purge air from the open port of the component. 7. Tighten the brake pipe, then have
the assistant slowly release the brake pedal. 8. Wait 15 seconds, then repeat steps 3.3-3.7 until all
air is purged from the same port of the component. 9. With the brake pipe installed securely to the
master cylinder, proportioning valve assembly, or brake modulator assembly, and after all air has
been purged from the first port of the component that was bled, loosen and separate the next brake
pipe from the component, then repeat steps 3.3-3.8 until each of the ports on the component has
been bled.
10. After completing the final component port bleeding procedure, ensure that each of the brake
pipe-to-component fittings is properly tightened.
4. Clean the outside of the reservoir on and around the reservoir cap prior to removing the cap and
diaphragm. 5. Install the J 44894-A to the brake master cylinder reservoir. 6. Connect the J 29532 ,
or equivalent, to the J 44894-A . 7. Charge the J 29532 , or equivalent, air tank to 175-205 kPa
(25-30 psi). 8. Open the J 29532 , or equivalent, fluid tank valve to allow pressurized brake fluid to
enter the brake system. 9. Wait approximately 30 seconds, then inspect the entire hydraulic brake
system in order to ensure that there are no existing external brake fluid
leaks. Any brake fluid leaks identified require repair prior to completing this procedure.
10. Install a proper box-end wrench onto the RIGHT REAR wheel hydraulic circuit bleeder valve.
11. Install a transparent hose over the end of the bleeder valve. 12. Loosen the bleeder valve to
purge air from the wheel hydraulic circuit. Allow fluid to flow until air bubbles stop flowing from the
bleeder, then
tighten the bleeder valve.
13. With the right rear wheel hydraulic circuit bleeder valve tightened securely, and after all air has
been purged from the right rear hydraulic circuit,
install a proper box-end wrench onto the LEFT FRONT wheel hydraulic circuit bleeder valve.
14. Install a transparent hose over the end of the bleeder valve, then repeat steps 13-14. 15. With
the left front wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left front hydraulic circuit,
install a proper box-end wrench onto the LEFT REAR wheel hydraulic circuit bleeder valve.
16. Install a transparent hose over the end of the bleeder valve, then repeat steps 13-14. 17. With
the left rear wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left rear hydraulic circuit,
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Brake Bleeding > System Information > Service and Repair > Antilock Brake
System Automated Bleed Procedure > Page 2899
install a proper box-end wrench onto the RIGHT FRONT wheel hydraulic circuit bleeder valve.
18. Install a transparent hose over the end of the bleeder valve, then repeat steps 13-14. 19. After
completing the final wheel hydraulic circuit bleeding procedure, ensure that each of the 4 wheel
hydraulic circuit bleeder valves is properly
tightened.
20. Close the J 29532 , or equivalent, fluid tank valve, then disconnect the J 29532 , or equivalent,
from the J 44894-A . 21. Remove the J 44894-A from the brake master cylinder reservoir. 22.
Slowly depress and release the brake pedal. Observe the feel of the brake pedal. 23. If the brake
pedal feels spongy perform the following steps:
1. Inspect the brake system for external leaks. 2. If equipped with antilock brakes, using a scan
tool, perform the antilock brake system automated bleeding procedure to remove any air that
may have been trapped in the brake pressure modulator valve (BPMV).
24. Turn the ignition key ON, with the engine OFF. Check to see if the brake system warning lamp
remains illuminated.
Important: DO NOT allow the vehicle to be driven until it is diagnosed and repaired.
25. If the brake system warning lamp remains illuminated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Brake Bleeding > System Information > Service and Repair > Antilock Brake
System Automated Bleed Procedure > Page 2900
Brake Bleeding: Service and Repair Hydraulic Brake System Flushing
Hydraulic Brake System Flushing Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Inspect the brake fluid for the following conditions, indicating brake fluid contamination:
* Fluid separation, indicating two types of fluid are present; a substance other than the
recommended brake fluid has been introduced into the brake hydraulic system
- Swirled appearance-Oil-based substance
- Layered appearance-Silicone-based substance
* Fluid discoloration, indicating the presence of moisture or particles that have been introduced into
the brake hydraulic system
- Cloudy appearance-Moisture
- Dark appearance/suspended particles in fluid-Dirt, rust, corrosion, brake dust
2. Inspect the master cylinder reservoir cap diaphragm and the reservoir-to-master cylinder
grommets for swelling, indicating brake fluid
contamination.
3. If the brake fluid WAS contaminated with an oil-based or a silicone-based substance, indicated
by fluid separation and/or a swollen master
cylinder reservoir cap diaphragm and/or swollen reservoir-to-master cylinder grommets, perform
the following:
1. Remove ALL of the following components listed from the vehicle. Each component contains
internal rubber seals/linings which have been
contaminated by the contaminated brake fluid in the brake hydraulic system. Refer to the
procedures indicated:
* Master Cylinder Reservoir Replacement
* Master Cylinder Replacement
* Front Brake Hose Replacement
* Rear Brake Hose Replacement
* Front Brake Caliper Replacement
* Rear Brake Caliper Replacement
* Brake Pressure Modulator Valve Replacement
2. Clean out all the hydraulic brake pipes using denatured alcohol, or equivalent. 3. Dry the brake
pipes using non-lubricated, filtered air. 4. Repair or replace ALL of the following components listed
and install them to the vehicle. Each component contains internal rubber
seals/linings which have been contaminated by the contaminated brake fluid in the brake hydraulic
system. Refer to the procedures indicated:
* Master Cylinder Reservoir Replacement Replace the brake master cylinder reservoir cap
diaphragm.
* Master Cylinder Replacement Also perform the following: Clean the brake master cylinder
reservoir using denatured alcohol, or equivalent, then dry the reservoir using non-lubricated, filtered
air. Inspect the reservoir for cracks and/or damage and replace if necessary.
* Front Brake Hose Replacement
* Rear Brake Hose Replacement
* Front Brake Caliper Replacement
* Rear Brake Caliper Replacement
* Brake Pressure Modulator Valve Replacement
4. If the brake fluid was NOT contaminated with an oil-based or a silicone-based substance, but
WAS contaminated with water or dirt, rust,
corrosion, and/or brake dust, replace the brake master cylinder reservoir cap diaphragm which may
have allowed the moisture or particles to enter the hydraulic system.
5. Pressure bleed the hydraulic brake system; begin the procedure with the pressure bleeder
reservoir filled to the maximum-fill level with the correct
brake fluid as indicated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Brake Bleeding > System Information > Service and Repair > Antilock Brake
System Automated Bleed Procedure > Page 2901
Brake Bleeding: Service and Repair Master Cylinder Bench Bleeding
Master Cylinder Bench Bleeding
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Secure the mounting flange of the brake master cylinder in a bench vise so that the rear of the
primary piston is accessible. 2. Remove the cap from the hose nipple on the master cylinder
reservoir. 3. Install suitable fittings to the master cylinder ports that match the type of flare seat
required and also provide for hose attachment. 4. Install transparent hoses to the fittings, then
route the hoses into the master cylinder reservoir. 5. Ensure that the ends of the transparent hoses
running into the reservoir are fully submerged in the brake fluid. 6. Using a smooth, round-ended
tool, depress and release the primary piston as far as it will travel, a depth of about 25 mm (1 in),
several times.
Observe the flow of fluid coming from the ports. As air is bled from the primary and secondary
pistons, the effort required to depress the primary piston will increase and the amount of travel will
decrease.
7. Continue to depress and release the primary piston until fluid flows freely from the ports with no
evidence of air bubbles. 8. Remove the transparent hoses from the reservoir. 9. Install the cap to
the hose nipple on the reservoir, to prevent fluid loss and contamination.
10. Remove the fittings with the transparent hoses from the master cylinder ports. Wrap the master
cylinder with a clean shop cloth to prevent brake
fluid spills.
11. Remove the master cylinder from the vise.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Air Bag(s) Arming and Disarming > System Information > Service and
Repair
Air Bag(s) Arming and Disarming: Service and Repair
SIR Disabling and Enabling
SIR component location affects how a vehicle should be serviced. There are parts of the SIR
system installed in various locations around a vehicle. To find the location of the SIR components
refer to SIR Identification Views.
There are several reasons for disabling the SIR system, such as repairs to the SIR system or
servicing a component near or attached to an SIR component. There are several ways to disable
the SIR system depending on what type of service is being performed. The following information
covers the proper procedures for disabling/enabling the SIR system.
SIR Service Precautions
Caution: When performing service on or near the SIR components or the SIR wiring, the SIR
system must be disabled. Failure to observe the correct procedure could cause deployment of the
SIR components. Serious injury can occur. Failure to observe the correct procedure could also
result in unnecessary SIR system repairs.
The inflatable restraint sensing and diagnostic module (SDM) maintains a reserved energy supply.
The reserved energy supply provides deployment power for the air bags if the SDM loses battery
power during a collision. Deployment power is available for as much as 1 minute after
disconnecting the vehicle power. Waiting 1 minute before working on the system after disabling the
SIR system prevents deployment of the air bags from the reserved energy supply.
General Service Instructions
The following are general service instructions which must be followed in order to properly repair the
vehicle and return it to its original integrity:
* Do not expose inflator modules to temperatures above 65°C (150°F).
* Verify the correct replacement part number. Do not substitute a component from a different
vehicle.
* Use only original GM replacement parts available from your authorized GM dealer. Do not use
salvaged parts for repairs to the SIR system.
Discard any of the following components if it has been dropped from a height of 91 cm (3 feet) or
greater:
* Inflatable restraint sensing and diagnostic module (SDM)
* Any Inflatable restraint air bag module
* Inflatable restraint steering wheel module coil
* Any Inflatable restraint sensor
* Inflatable restraint seat belt pretensioners
* Inflatable restraint Passenger Presence System (PPS) module or sensor
Disabling Procedure - Air Bag Fuse
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position.
Important: The SDM may have more than one fused power input. To ensure there is no unwanted
SIR deployment, personal injury, or unnecessary SIR system repairs, remove all fuses supplying
power to the SDM. With all SDM fuses removed and the ignition switch in the ON position, the AIR
BAG warning indicator illuminates. This is normal operation, and does not indicate a SIR system
malfunction.
3. Locate and remove the fuse(s) supplying power to the SDM. 4. Wait 1 minute before working on
the system.
Enabling Procedure - Air Bag Fuse
1. Place the ignition in the OFF position.
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2. Install the fuse(s) supplying power to the SDM. 3. Turn the ignition switch to the ON position.
The AIR BAG indicator will flash then turn OFF. 4. Perform the Diagnostic System Check - Vehicle
if the AIR BAG warning indicator does not operate as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Disabling Procedure - Negative Battery Cable
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position. 3. Disconnect the negative battery cable from the battery. 4. Wait 1
minute before working on system.
Enabling Procedure - Negative Battery Cable
1. Place the ignition in the OFF position. 2. Connect the negative battery cable to the battery. 3.
Turn the ignition switch to the ON position. The AIR BAG indicator will flash then turn OFF. 4.
Perform the Diagnostic System Check - Vehicle if the AIR BAG warning indicator does not operate
as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fuses and Circuit Breakers > Fuse > Component Information > Technical
Service Bulletins > Electrical - Aftermarket Fuse Warning
Fuse: Technical Service Bulletins Electrical - Aftermarket Fuse Warning
Bulletin No.: 07-08-45-002
Date: September 05, 2007
ADVANCED SERVICE INFORMATION
Subject: Service Alert: Concerns With Aftermarket Fuses in GM Vehicles
Models: 2008 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2008 and
Prior HUMMER H2, H3 2008 and Prior Saab 9-7X
Concerns with Harbor Freight Tools "Storehouse" Branded Blade Type Fuses
General Motors has become aware of a fuse recall by Harbor Freight Tools/Storehouse for a
variety of aftermarket fuses. In two cases, these fuses have not provided protection for the wiring
system of the vehicles they were customer installed in.
Upon testing the 15 amp version, it was found that the fuse still would not "open" when shorted
directly across the battery terminals.
How to Identify These Fuses
Packed in a 120 piece set, the fuse has a translucent, hard plastic, blue body with the amperage
stamped into the top. There are no white painted numbers on the fuse to indicate amperage. There
are no identifying marks on the fuse to tell who is making it. The fuses are known to be distributed
by Harbor Freight Tools but there may be other marketers, and packaging of this style of fuse. It
would be prudent to replace these fuses if found in a customers vehicle. Likewise, if wiring
overheating is found you should check the fuse panel for the presence of this style of fuse.
All GM dealers should use genuine GM fuses on the vehicles they service. You should also
encourage the use of GM fuses to your customers to assure they are getting the required electrical
system protection. GM has no knowledge of any concerns with other aftermarket fuses. If
additional information becomes available, this bulletin will be updated.
Disclaimer
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I/P Fuse Block
Fuse: Locations I/P Fuse Block
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Fuse: Locations Underhood Fuse Block
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Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fuses and Circuit Breakers > Fuse > Component Information > Diagrams >
Diagram Information and Instructions
Fuse: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Fuse: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Fuse Block: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Fuse Block: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Fuse Block: Connector Views
Underhood Fuse Block
Fuse Block Underhood - C1 (Pin 1 To 15)
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Fuse Block Underhood - C1 (Pin 16 To 46)
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Fuse Block Underhood - C2
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Fuse Block Underhood - C2
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Fuse Block Underhood - C2
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Fuse Block Underhood - C3 (Pin 1 To 14)
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Fuse Block Underhood - C3 (Pin 15 To 22)
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Fuse Block Underhood - C3 (Pin 1 To 14)
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Fuse Block Underhood - C3 (Pin 15 To 22)
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Fuse Block - Underhood (C1)
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Fuse Block - Underhood (C1) (Pin 14 To 46)
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Fuse Block - Underhood (C1)
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Fuse Block - Underhood (C2) (Pin 5 To C)
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Fuse Block - Underhood (C3) (Pin 1 To 15)
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Fuse Block - Underhood (C3) (Pin 16 To 22)
I/P Fuse Block
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Fuse Block I/P - C3
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Fuse Block I/P - C3 (Pin 1 To 43)
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Fuse Block I/P - C3 (Pin 45 To C)
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Fuse Block I/P - C1
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Fuse Block I/P - C1 (Pin 14 To 40)
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Fuse Block I/P - C2
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Fuse Block I/P (C1) (Pin 1 To 13)
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Fuse Block I/P (C1) (Pin 14 To 46)
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Fuse Block I/P (C2)
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Fuse Block I/P (C3)
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Fuse Block I/P (C3) (Pin 1 To 46)
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Fuse Block I/P (C3) (Pin 47 To C)
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Service and Repair > Instrument Panel Electrical Center or Junction Block Replacement
Fuse Block: Service and Repair Instrument Panel Electrical Center or Junction Block Replacement
INSTRUMENT PANEL ELECTRICAL CENTER OR JUNCTION BLOCK REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: Record all preset radio stations.
Turn the ignition OFF.
2. Remove the screws from the battery cooling box. Remove the battery cover. 3. Disconnect the
negative battery cable. 4. Disconnect the positive battery cable. 5. Remove the console.
6. Remove the nut holding the following fuse block connectors to the back of the I/P fuse block (4):
- The body 68-way connector (1)
- The I/P 68-way connector (2)
- The I/P 24-way connector (3)
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7. Remove the bolt holding the fuse block into place. 8. Remove the ground wire (1). 9. Remove
the fuse block.
INSTALLATION PROCEDURE
1. NOTE: Refer to Fastener Notice.
Install the fuse block and attach the ground wire (1) and attach the bolt.
Tighten the bolt to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fuses and Circuit Breakers > Fuse Block > Component Information >
Service and Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 3152
2. Connect the harness connectors to the back of the I/P fuse block (4).
Tighten the connectors to 4 N.m (35 lb in).
3. Install the console. 4. Connect the positive battery cable.
Tighten the bolt to 17 N.m (13 lb ft).
5. Connect the negative battery cable.
Tighten the bolt to 17 N.m (13 lb ft).
6. Install the battery cooling box cover and install the screws.
Tighten the screws to 2 N.m (18 lb in).
7. Set the radio stations to the preset selections.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fuses and Circuit Breakers > Fuse Block > Component Information >
Service and Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 3153
Fuse Block: Service and Repair Underhood Electrical Center or Junction Block Replacement
UNDERHOOD ELECTRICAL CENTER OR JUNCTION BLOCK REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the negative battery cable.
2. Remove the underhood accessory wiring junction block cover. 3. Remove the nut at the end of
the fuse block and remove both the positive battery cable and the EPS cable.
4. Loosen the bolts (1) on the top of the fuse block until the block can be lifted off the connectors. 5.
Remove the I/P connectors (2).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fuses and Circuit Breakers > Fuse Block > Component Information >
Service and Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 3154
6. IMPORTANT: All 3 fuse block 68-way connectors are held into place to the fuse block case by
push-in retainers.
Pull up on each of the following 68-way connectors until they come out. 1. Fuse block case (1) 2.
Forward lamp 68-way connector (2) 3. Engine 68-way connector (3) 4. I/P 68-way connector (4)
INSTALLATION PROCEDURE
1. Install each of the following 68-way connectors into its proper location.
- Fuse block case (1)
- Forward lamp 68-way connector (2)
- Engine 68-way connector (3)
- I/P 68-way connector (4)
2. Push down on each connector until it is fully secured into the fuse block.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Fuses and Circuit Breakers > Fuse Block > Component Information >
Service and Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 3155
3. Connect the I/P connectors (2).
4. NOTE: Refer to Fastener Notice
Tighten the bolts (1) on the top of the fuse block.
Tighten the underhood accessory wiring junction block harness retaining bolts (1) to 4 N.m (35 lb
in).
5. Reconnect the positive battery cable and EPS at the end of the fuse block with the nut.
Tighten the positive battery cable nut to 17 N.m (13 lb ft).
6. Install the fuse box cover. 7. Connect the negative battery cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Service Reminder Indicators > Low Tire Pressure Indicator > Component
Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips
Low Tire Pressure Indicator: Technical Service Bulletins Tire Pressure Monitor - TPM System
Message/Service Tips
# 09-03-16-002A: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive
for Tire Pressure Monitor (TPM) System Message, Light and Customer Information - (Apr 27, 2010)
Subject: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire
Pressure Monitor (TPM) System Message, Light and Customer Information
Models: 2006-2011 Cars and Light Duty Trucks (Including Saturn and Saab)
2006-2010 HUMMER H2, H3
ATTENTION
The information found in this bulletin is to be used as a dealership service consultant procedures
for customers coming into the service lane with an illuminated "low tire light" or comments on a
check tire pressure/low tire pressure/add air to tire or service tire monitor system message.
Maintaining proper tire pressures is an Owner's Maintenance item and is not covered under
warranty.
This bulletin is being revised to add model years and update additional bulletin reference
information. Please discard Corporate Bulletin Number 09-03-16-002 (Section 03 -- Suspension).
Customer Concerns and Confusion with the Tire Pressure Monitoring (TPM) System
The following procedure should be used by dealership service consultants when a customer comes
into the service drive with a "low tire light" on or comments on a check tire pressure/low tire
pressure/add air to tire or service tire monitor system message. The service consultant should
perform the following steps:
Procedure
Turn the key to ON, without starting the engine.
^ If the low tire light comes on and stays on solid with a check tire pressure/low tire pressure/add
air to tire message (on vehicles equipped with DIC),
advise the customer:
- The system is working properly.
- Properly adjusting all tire air pressures to the recommended levels and driving the vehicle will turn
the light off (refer to the Tire and Loading Information label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
^ If the Tire Pressure Monitor (TPM) light blinks for one minute then stays on solid with a service
tire monitor system message (on vehicles equipped
with DIC):
- A TPM system problem exists. The vehicle should be written up accordingly and sent to your
service department for further DTC diagnosis and service.
- If dashes (--) are displayed in only one or two of the tire pressure readouts, it is likely caused by a
previous TPM system relearn that was performed incorrectly due to interference from another
vehicle's TPM system during the relearn process (refer to the Important statement later in this
bulletin regarding TPM relearn with a Tech 2(R)).
- If dashes (--) are displayed in all four of the tire pressure readouts, there is a system problem.
Follow the appropriate SI service procedures.
^ If a customer indicates the low tire light comes on for a few minutes when the vehicle is started,
then goes off after driving a while, advise the
customer:
- The system is working properly.
- Most likely, air pressure in one or more of the tires is low enough to turn the light on when tires
are cold. After driving for a while, tires will heat
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Service Reminder Indicators > Low Tire Pressure Indicator > Component
Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 3161
up, allowing tire air pressure to increase above the threshold causing the light to go off. Properly
adjusting all tire air pressures to the recommended levels will correct this (Refer to the Tire and
Loading Information Label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
For more detailed information, refer to Corporate Bulletin Number 07-03-16-004C and TPMS
Training Course 13044.12T2.
Tire Pressure Light
At key on, without starting the vehicle:
Steady Solid Glowing TPM Indicator
If the TPM indicator appears as a steady glowing yellow lamp (as above), the system is functioning
properly and you should add air to the tires to correct this condition.
Blinking TPM Indicator
If the TPM indicator appears as a BLINKING yellow lamp for one minute and then stays on solid,
diagnostic service is needed.
The Effect of Outside Temperature on Tire Pressures
Important:
As a rule of thumb, tire pressure will change about 7kPa (1 psi) for every 6°C (10°F) decrease in
temperature - Tire pressure will drop when it gets colder outside, and rise when it gets warmer.
Under certain situations such as extreme outside temperature changes, the system may bring on a
solid light with a check tire pressure message. This should be considered normal and the system is
working properly. The light will turn off upon adding the proper amount of air to the tires (refer to the
Tire & Loading Information label in the driver's door opening). When properly adjusting tire air
pressure, the following steps are important to help optimize the system and prolong bringing a tire
pressure light on:
^ Use an accurate, high quality tire pressure gauge.
^ Never set the tire pressure below the specified placard value regardless of tire temperature or
ambient temperature.
^ Tire pressure should be set to the specified placard pressure at the lowest seasonal temperature
the vehicle will encounter during operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Service Reminder Indicators > Low Tire Pressure Indicator > Component
Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 3162
^ When adding proper tire air pressure, it is important to remember fluctuations in outside air
temperatures and tire temperatures effect tire air pressures.
^ After you have added the proper tire pressure, if the vehicle has a DIC (after the system has
updated), check to see if DIC displays are the same
readings as the tire pressure gauge used (adjust as necessary).
^ Only perform a TPM sensor re-learn after a tire rotation or system part replacements and use the
Tech 2(R) to initiate the relearn whenever possible to
avoid invalid sensor I.D. learns.
Important:
Always take outside temperature and tire temperature into consideration to properly set tire
pressures. Foe example, on colder days (20°F/-7°C), if setting tire pressure when the vehicle has
been indoors (60°F/16°C) or the tires are warm from being driven, it will be necessary to
compensate for the low outside temperature by adding 21-27 kPa (3-4 psi) more then the
placecard pressure. At some later time, when the vehicle has been parked outside for a while, the
tires will cool off and the pressures will drop back into the placecard range.
Important:
Recently, nitrogen gas (for use in inflating tires) has become available to the general customer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. Tires inflated with nitrogen gas may exhibit less of a pressure change in response to
outside temperature changes. Nitrogen gas inflation is compatible with GM TPM sensors. For
additional information, refer to Corporate Service Bulletin 05-03-10-020C.
Important:
All Models (Except the Pontiac Vibe): Do not perform a TPM relearn at PDI, the system has already
been set at the Assembly Plant. Do not perform a TPM relearn after adding air to the tires. The low
tire light is similar to the low fuel indicator and adding something (fuel, air) to the vehicle makes that
light turn back off again. Note that because of system behavior, some vehicles must be driven a
short distance before the sensors recognize the increase in pressure and turns the light off again.
Pontiac Vibe Only: Do not use the TPMS reset button to turn off the light. The system will update
and light will turn off when all tire pressures have been adjusted followed by short distance drive.
Important:
All models (except the Pontiac Vibe): Each tire monitor sensor is learned to a specific vehicle
corner. When performing a TPM relearn (only after a tire rotation or replacement of a TPM sensor
or Module), always use the Tech2(R) to initiate the J 46079 relearned process. Tech 2(R) - initiated
relearns lock out other vehicle TPM signals that may be broadcasting in the area. Only signals
initiated by the J 46079 tool will be accepted. This method avoids storing false TPM I.D.s and will
prevent customers from returning with dashes (--) displayed in tire pressure readouts and/or a
flashing tire pressure monitor (TPM) light. Checking the four TPM I.D.s with the Tech 2(R) prior to
and following relearn to verify they are the same can prevent invalid I.D. learns.
Pontiac Vibe Only: Tire Monitor Sensors are not learned to a specific vehicle corner. Do not
perform a TPM Reset after tire rotation. The TPMS Reset button must only be used during
pre-delivery inspection by the dealer to initialize the system (after all tire pressures have been
adjusted properly) or when a Tire Pressure Monitor System component is replaced. The J 46079
tool does not work on Vibe TPM sensors. A TPMS relearn on Vibe must be preformed with a Tech
2(R) to set the TPMS Module in learn mode. The TPMS sensor IDs are entered through the Tech
2(R). Refer to SI for further Vibe TPMS information.
Labor Operation and Repair Order/Warranty System Claim Required Documentation
Important:
The ONLY time labor operation E0726 or E0722 should be used is to diagnose for a system issue.
That should ONLY occur if, at key ON, without starting the engine, the Tire Pressure Monitor (TPM)
blinks for one minute and then stays on solid with a Service Tire Monitor System message (on
vehicles equipped with a DIC) If that occurs, a TPM system problem exists and the system will
have set a DTC. If one of these operastions is used, the following Repair Order and Warranty
System documentation are required:
^ Document the customer complaint on the Repair Order.
^ Document the TPMS DTC that has set on the Repair Order.
^ Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim
submission (refer to the Claims Processing Manual,
Section IV, Warranty claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim
may be rejected. If the Warranty Parts Center (WPC) generates a request, this repair order
documentation must be sent back.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Service Reminder Indicators > Low Tire Pressure Indicator > Component
Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 3163
Customer TPMS Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Service Reminder Indicators > Low Tire Pressure Indicator > Component
Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 3164
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Service Reminder Indicators > Low Tire Pressure Indicator > Component
Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 3165
Frequently Asked Questions
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Service Reminder Indicators > Maintenance Required Lamp/Indicator >
Component Information > Service and Repair
Maintenance Required Lamp/Indicator: Service and Repair
SERVICE VEHICLE SOON or SERVICE ENGINE SOON INDICATOR
Your vehicle is equipped with a "SERVICE VEHICLE SOON"or a "SERVICE ENGINE SOON"
indicator. This indicator is not a maintenance indicator and does not mean a maintenance service
is required.
For additional "SERVICE VEHICLE SOON"or a "SERVICE ENGINE SOON" indicator information
refer to Malfunction Indicator Lamp.
For Maintenance Required Lamp/Indicator, refer to Oil Change Reminder Lamp. See: Oil Change
Reminder Lamp/Service and Repair
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Service Reminder Indicators > Malfunction Indicator Lamp > Component
Information > Testing and Inspection
Malfunction Indicator Lamp: Testing and Inspection
MALFUNCTION INDICATOR LAMP (MIL) DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
CIRCUIT/SYSTEM DESCRIPTION
Ignition voltage is supplied to the malfunction indicator lamp (MIL). The engine control module
(ECM) turns the MIL ON by grounding the MIL control circuit.
CIRCUIT/SYSTEM VERIFICATION
Ignition ON, the MIL should turn ON and OFF when commanded with a scan tool.
CIRCUIT/SYSTEM TESTING
1. Ignition OFF, disconnect the harness connector at the instrument panel cluster (IPC). 2. Ignition
ON, verify that a test lamp illuminates between the ignition circuit and ground.
- If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high
resistance. If the circuit tests normal and the ignition circuit fuse is open, replace the IPC.
3. Connect a test lamp between the control circuit and the ignition circuit. 4. Command the MIL ON
and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the
commanded states.
- If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests
normal, replace the ECM.
- If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high
resistance. If the circuit tests normal, replace the ECM.
5. If all circuits test normal, replace the IPC.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Control Module References for ECM replacement, setup, and programming
- Instrument Cluster Replacement See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests and Procedures See: Testing and Inspection/Programming and
Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Service Reminder Indicators > Oil Change Reminder Lamp > Component
Information > Service and Repair
Oil Change Reminder Lamp: Service and Repair
ENGINE OIL LIFE SYSTEM
WHEN TO CHANGE ENGINE OIL
Your vehicle has a computer system that lets you know when to change the engine oil and filter.
This is based on engine revolutions and engine temperature, and not on mileage. Based on driving
conditions, the mileage at which an oil change will be indicated can vary considerably. For the oil
life system to work properly, you must reset the system every time the oil is changed.
When the system has calculated that oil life has been diminished, it will indicate that an oil change
is necessary. A "CHANGE ENGINE OIL SOON" message will come on. Change your oil as soon
as possible within the next 600 miles (1 000 km). It is possible that, if you are driving under the best
conditions, the oil life system may not indicate that an oil change is necessary for over a year.
However, your engine oil and filter must be changed at least once a year and at this time the
system must be reset. It is also important to check your oil regularly and keep it at the proper level.
If the system is ever reset accidentally, you must change your oil at 3,000 miles (5 000 km) since
your last oil change. Remember to reset the oil life system whenever the oil is changed.
HOW TO RESET THE ENGINE OIL LIFE SYSTEM
The Engine Oil Life System calculates when to change your engine oil and filter based on vehicle
use. Anytime your oil is changed, reset the system so it can calculate when the next oil change is
required. If a situation occurs where you change your oil prior to a change engine oil light being
turned on, reset the system.
1. Turn the ignition key to "RUN" with the engine off. 2. Fully press and release the accelerator
pedal three times within five seconds. The "CHANGE ENGINE OIL SOON" message will flash
while the
system is resetting.
3. When the light stops flashing, turn the key to "LOCK".
If the change engine oil light comes back on and stays on when you start your vehicle, the engine
oil life system has not reset. Repeat the procedure.
WHAT TO DO WITH USED OIL
Used engine oil contains certain elements that may be unhealthy for your skin and could even
cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with
soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing
used engine oil. See the manufacturer's warnings about the use and disposal of oil products.
Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil
from the filter before disposal. Never dispose of oil by putting it in the trash, pouring it on the
ground, into sewers, or into streams or bodies of water. Instead, recycle it by taking it to a place
that collects used oil. If you have a problem properly disposing of your used oil, ask your dealer, a
service station or a local recycling center for help.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Vehicle Lifting > Component Information > Service and
Repair
Vehicle Lifting: Service and Repair
Lifting and Jacking the Vehicle
Caution: To avoid any vehicle damage, serious personal injury or death when major components
are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack
stands at the opposite end from which the components are being removed.
Caution: To avoid any vehicle damage, serious personal injury or death, always use the jackstands
to support the vehicle when lifting the vehicle with a jack.
Notice: Perform the following steps before beginning any vehicle lifting or jacking procedure:
* Remove or secure all of the vehicle's contents in order to avoid any shifting or any movement that
may occur during the vehicle lifting or jacking procedure.
* The lifting equipment or the jacking equipment weight rating must meet or exceed the weight of
the vehicle and any vehicle contents.
* The lifting equipment or the jacking equipment must meet the operational standards of the lifting
equipment or jacking equipment's manufacturer.
* Perform the vehicle lifting or jacking procedure on a clean, hard, dry, level surface.
* Perform the vehicle lifting or jacking procedure only at the identified lift points. DO NOT allow the
lifting equipment or jacking equipment to contact any other vehicle components.
Failure to perform the previous steps could result in damage to the lifting equipment or the jacking
equipment, the vehicle, and/or the vehicle's contents.
Vehicle Lifting-Frame Contact Lift
Front Lift Pads
When lifting the vehicle with a frame-contact lift, place the front lift pads approximately 12.2 in (310
mm) inboard from the front pinchweld flanges.
Rear Lift Pads
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Vehicle Lifting > Component Information > Service and
Repair > Page 3179
When lifting the vehicle with a frame-contact lift, place the rear lift pads 10.0 in (255 mm) inboard
from the rear pinchweld flanges.
Vehicle Jacking
Under the Center of the Rear Suspension
Lift the rear of the vehicle by placing the floor jack lift pad at the center of the rear suspension.
Supporting the Vehicle with Jackstands
Important: Place jackstands ONLY under strong and stable vehicle structures.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Relays and Modules - Wheels and Tires > Tire Pressure
Module > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs
Tire Pressure Module: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Relays and Modules - Wheels and Tires > Tire Pressure
Monitor Receiver / Transponder > Component Information > Technical Service Bulletins > Tire Monitor System - TPM
Sensor Information
Tire Pressure Monitor Receiver / Transponder: Technical Service Bulletins Tire Monitor System TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Sensors and Switches - Wheels and Tires > Tire
Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs
Tire Pressure Sensor: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Sensors and Switches - Wheels and Tires > Tire
Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 3194
Tire Pressure Sensor: Technical Service Bulletins Tire Monitor System - TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Sensors and Switches - Wheels and Tires > Tire
Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 3195
Tire Pressure Sensor: Technical Service Bulletins Tires - Minimizing Damage to TPM Sensors
INFORMATION
Bulletin No.: 08-03-10-007
Date: May 16, 2008
Subject: Minimizing Damage to Tire Pressure Monitor (TPM) Sensors During Tire
Mounting/Dismounting
Models: 2009 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2009 and
Prior HUMMER H2, H3 2009 and Prior Saab 9-7X
with Wheel Mounted Tire Pressure Sensors
Minimizing Damage To TPM Sensors
All GM vehicles now in production and sold in the U.S., as well as many vehicles sold in Canada,
feature Tire Pressure Monitoring Systems that have valve stem mounted Tire Pressure Sensors.
When dismounting and mounting tires, care must be taken when breaking the bead loose from the
wheel. If the tire machines bead breaking fixture is positioned too close to the tire pressure sensor,
as the tire bead breaks away from the wheel it may be forced into, or catch on the edge of the tire
pressure sensor. This can damage the sensor and require the sensor to be replaced.
Care must also be taken when transferring the tire bead to the other side of the wheel rim. As the
tire machine rotates and the tire bead is stretched around the wheel rim, the bead can come in
contact with the sensor if it is not correctly positioned in relation to the mounting/dismounting head
prior to tire mounting/dismounting. This can also cause sensor damage requiring replacement.
Procedure
Notice:
Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in
order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result.
Notice:
Do not scratch or damage the clear coating on aluminum wheels with the tire changing equipment.
Scratching the clear coating could cause the aluminum wheel to corrode and the clear coating to
peel from the wheel.
1. Remove the valve core from the valve stem.
2. Deflate the tire completely.
Important:
Rim-clamp European-type tire changers are recommended.
3. Use the tire changer in order to remove the tire from the wheel. Follow steps 4-7 to remove the
tire from the wheel.
4. When separating the tire bead from the wheel position the bead breaking fixture 90, 180 and 270
degrees from the valve stem.
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Sensors and Switches - Wheels and Tires > Tire
Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 3196
5. Position the wheel and tire so the valve stem is situated at the 2 o'clock position relative to the
head. The tire iron or pry bar can be inserted when prying the outer tire bead up and over the
mounting/dismounting head.
6. Position the wheel and tire so that the valve stem is situated again at the 2 o'clock position
relative to the head. The tire iron or pry bar can be inserted when prying the inner tire bead up and
over the mounting/dismounting head.
7. Remove all residual liquid sealant from the inside of the tire and wheel surfaces. If any tire
sealant is noted upon tire dismounting on vehicles equipped with TPM replace the tire pressure
sensor.
8. Use a wire brush or coarse steel wool in order to remove any rubber, light rust or corrosion from
the wheel bead seats.
Important:
If bead seat corrosion has been identified as an air loss concern on the wheel being worked on,
refer to GM Service Bulletin # 08-03-10-006 for additional information on correcting the leak.
9. Apply GM P/N 12345884 (in Canada, P/N 5728223) or equivalent to the tire bead and the wheel
rim.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Sensors and Switches - Wheels and Tires > Tire
Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 3197
10. Using the tire machine, rotate the tire/wheel assembly clockwise when transferring the tire bead
to the inside of the wheel rim.
11. Position the rim so that the valve stem (1) is situated at the 3 o'clock position relative to the
head (2). This will protect the sensor when the bottom bead seats.
12. After the bottom bead is on the wheel, reposition the wheel and tire so that the valve stem is
situated at the 9 o'clock position relative to the head. This will protect the sensor while mounting
the tire bead to the outside of the wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Sensors and Switches - Wheels and Tires > Tire
Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 3198
13. Use the tire changer in order to install the tire to the wheel.
Caution:
To avoid serious personal injury, do not stand over tire when inflating. The bead may break when
the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any
tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, lubricate
the beads and reinflate. Overinflating may cause the bead to break and cause serious personal
injury.
Important:
Allowable bead seating pressure is 345 kPa (50 psi) on Extended Mobility Tires.
14. Inflate the tire until it passes the bead humps. Be sure that the valve core is not installed at this
time.
15. Install the valve core to the valve core stem.
16. Inflate the tire to the proper air pressure.
17. Ensure that the locating rings are visible on both sides of the tire in order to verify that the tire
bead is fully seated on the wheel.
Parts Information
The product shown above is available from GM SPO.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tire Monitoring System > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips
Low Tire Pressure Indicator: Technical Service Bulletins Tire Pressure Monitor - TPM System
Message/Service Tips
# 09-03-16-002A: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive
for Tire Pressure Monitor (TPM) System Message, Light and Customer Information - (Apr 27, 2010)
Subject: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire
Pressure Monitor (TPM) System Message, Light and Customer Information
Models: 2006-2011 Cars and Light Duty Trucks (Including Saturn and Saab)
2006-2010 HUMMER H2, H3
ATTENTION
The information found in this bulletin is to be used as a dealership service consultant procedures
for customers coming into the service lane with an illuminated "low tire light" or comments on a
check tire pressure/low tire pressure/add air to tire or service tire monitor system message.
Maintaining proper tire pressures is an Owner's Maintenance item and is not covered under
warranty.
This bulletin is being revised to add model years and update additional bulletin reference
information. Please discard Corporate Bulletin Number 09-03-16-002 (Section 03 -- Suspension).
Customer Concerns and Confusion with the Tire Pressure Monitoring (TPM) System
The following procedure should be used by dealership service consultants when a customer comes
into the service drive with a "low tire light" on or comments on a check tire pressure/low tire
pressure/add air to tire or service tire monitor system message. The service consultant should
perform the following steps:
Procedure
Turn the key to ON, without starting the engine.
^ If the low tire light comes on and stays on solid with a check tire pressure/low tire pressure/add
air to tire message (on vehicles equipped with DIC),
advise the customer:
- The system is working properly.
- Properly adjusting all tire air pressures to the recommended levels and driving the vehicle will turn
the light off (refer to the Tire and Loading Information label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
^ If the Tire Pressure Monitor (TPM) light blinks for one minute then stays on solid with a service
tire monitor system message (on vehicles equipped
with DIC):
- A TPM system problem exists. The vehicle should be written up accordingly and sent to your
service department for further DTC diagnosis and service.
- If dashes (--) are displayed in only one or two of the tire pressure readouts, it is likely caused by a
previous TPM system relearn that was performed incorrectly due to interference from another
vehicle's TPM system during the relearn process (refer to the Important statement later in this
bulletin regarding TPM relearn with a Tech 2(R)).
- If dashes (--) are displayed in all four of the tire pressure readouts, there is a system problem.
Follow the appropriate SI service procedures.
^ If a customer indicates the low tire light comes on for a few minutes when the vehicle is started,
then goes off after driving a while, advise the
customer:
- The system is working properly.
- Most likely, air pressure in one or more of the tires is low enough to turn the light on when tires
are cold. After driving for a while, tires will heat
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tire Monitoring System > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page
3204
up, allowing tire air pressure to increase above the threshold causing the light to go off. Properly
adjusting all tire air pressures to the recommended levels will correct this (Refer to the Tire and
Loading Information Label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
For more detailed information, refer to Corporate Bulletin Number 07-03-16-004C and TPMS
Training Course 13044.12T2.
Tire Pressure Light
At key on, without starting the vehicle:
Steady Solid Glowing TPM Indicator
If the TPM indicator appears as a steady glowing yellow lamp (as above), the system is functioning
properly and you should add air to the tires to correct this condition.
Blinking TPM Indicator
If the TPM indicator appears as a BLINKING yellow lamp for one minute and then stays on solid,
diagnostic service is needed.
The Effect of Outside Temperature on Tire Pressures
Important:
As a rule of thumb, tire pressure will change about 7kPa (1 psi) for every 6°C (10°F) decrease in
temperature - Tire pressure will drop when it gets colder outside, and rise when it gets warmer.
Under certain situations such as extreme outside temperature changes, the system may bring on a
solid light with a check tire pressure message. This should be considered normal and the system is
working properly. The light will turn off upon adding the proper amount of air to the tires (refer to the
Tire & Loading Information label in the driver's door opening). When properly adjusting tire air
pressure, the following steps are important to help optimize the system and prolong bringing a tire
pressure light on:
^ Use an accurate, high quality tire pressure gauge.
^ Never set the tire pressure below the specified placard value regardless of tire temperature or
ambient temperature.
^ Tire pressure should be set to the specified placard pressure at the lowest seasonal temperature
the vehicle will encounter during operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tire Monitoring System > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page
3205
^ When adding proper tire air pressure, it is important to remember fluctuations in outside air
temperatures and tire temperatures effect tire air pressures.
^ After you have added the proper tire pressure, if the vehicle has a DIC (after the system has
updated), check to see if DIC displays are the same
readings as the tire pressure gauge used (adjust as necessary).
^ Only perform a TPM sensor re-learn after a tire rotation or system part replacements and use the
Tech 2(R) to initiate the relearn whenever possible to
avoid invalid sensor I.D. learns.
Important:
Always take outside temperature and tire temperature into consideration to properly set tire
pressures. Foe example, on colder days (20°F/-7°C), if setting tire pressure when the vehicle has
been indoors (60°F/16°C) or the tires are warm from being driven, it will be necessary to
compensate for the low outside temperature by adding 21-27 kPa (3-4 psi) more then the
placecard pressure. At some later time, when the vehicle has been parked outside for a while, the
tires will cool off and the pressures will drop back into the placecard range.
Important:
Recently, nitrogen gas (for use in inflating tires) has become available to the general customer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. Tires inflated with nitrogen gas may exhibit less of a pressure change in response to
outside temperature changes. Nitrogen gas inflation is compatible with GM TPM sensors. For
additional information, refer to Corporate Service Bulletin 05-03-10-020C.
Important:
All Models (Except the Pontiac Vibe): Do not perform a TPM relearn at PDI, the system has already
been set at the Assembly Plant. Do not perform a TPM relearn after adding air to the tires. The low
tire light is similar to the low fuel indicator and adding something (fuel, air) to the vehicle makes that
light turn back off again. Note that because of system behavior, some vehicles must be driven a
short distance before the sensors recognize the increase in pressure and turns the light off again.
Pontiac Vibe Only: Do not use the TPMS reset button to turn off the light. The system will update
and light will turn off when all tire pressures have been adjusted followed by short distance drive.
Important:
All models (except the Pontiac Vibe): Each tire monitor sensor is learned to a specific vehicle
corner. When performing a TPM relearn (only after a tire rotation or replacement of a TPM sensor
or Module), always use the Tech2(R) to initiate the J 46079 relearned process. Tech 2(R) - initiated
relearns lock out other vehicle TPM signals that may be broadcasting in the area. Only signals
initiated by the J 46079 tool will be accepted. This method avoids storing false TPM I.D.s and will
prevent customers from returning with dashes (--) displayed in tire pressure readouts and/or a
flashing tire pressure monitor (TPM) light. Checking the four TPM I.D.s with the Tech 2(R) prior to
and following relearn to verify they are the same can prevent invalid I.D. learns.
Pontiac Vibe Only: Tire Monitor Sensors are not learned to a specific vehicle corner. Do not
perform a TPM Reset after tire rotation. The TPMS Reset button must only be used during
pre-delivery inspection by the dealer to initialize the system (after all tire pressures have been
adjusted properly) or when a Tire Pressure Monitor System component is replaced. The J 46079
tool does not work on Vibe TPM sensors. A TPMS relearn on Vibe must be preformed with a Tech
2(R) to set the TPMS Module in learn mode. The TPMS sensor IDs are entered through the Tech
2(R). Refer to SI for further Vibe TPMS information.
Labor Operation and Repair Order/Warranty System Claim Required Documentation
Important:
The ONLY time labor operation E0726 or E0722 should be used is to diagnose for a system issue.
That should ONLY occur if, at key ON, without starting the engine, the Tire Pressure Monitor (TPM)
blinks for one minute and then stays on solid with a Service Tire Monitor System message (on
vehicles equipped with a DIC) If that occurs, a TPM system problem exists and the system will
have set a DTC. If one of these operastions is used, the following Repair Order and Warranty
System documentation are required:
^ Document the customer complaint on the Repair Order.
^ Document the TPMS DTC that has set on the Repair Order.
^ Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim
submission (refer to the Claims Processing Manual,
Section IV, Warranty claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim
may be rejected. If the Warranty Parts Center (WPC) generates a request, this repair order
documentation must be sent back.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tire Monitoring System > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page
3206
Customer TPMS Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tire Monitoring System > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page
3207
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tire Monitoring System > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page
3208
Frequently Asked Questions
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tire Monitoring System > Tire Pressure Module >
Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs
Tire Pressure Module: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tire Monitoring System > Tire Pressure Monitor
Receiver / Transponder > Component Information > Technical Service Bulletins > Tire Monitor System - TPM Sensor
Information
Tire Pressure Monitor Receiver / Transponder: Technical Service Bulletins Tire Monitor System TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tire Monitoring System > Tire Pressure Sensor >
Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs
Tire Pressure Sensor: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tire Monitoring System > Tire Pressure Sensor >
Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs > Page 3221
Tire Pressure Sensor: Technical Service Bulletins Tire Monitor System - TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tire Monitoring System > Tire Pressure Sensor >
Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs > Page 3222
Tire Pressure Sensor: Technical Service Bulletins Tires - Minimizing Damage to TPM Sensors
INFORMATION
Bulletin No.: 08-03-10-007
Date: May 16, 2008
Subject: Minimizing Damage to Tire Pressure Monitor (TPM) Sensors During Tire
Mounting/Dismounting
Models: 2009 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2009 and
Prior HUMMER H2, H3 2009 and Prior Saab 9-7X
with Wheel Mounted Tire Pressure Sensors
Minimizing Damage To TPM Sensors
All GM vehicles now in production and sold in the U.S., as well as many vehicles sold in Canada,
feature Tire Pressure Monitoring Systems that have valve stem mounted Tire Pressure Sensors.
When dismounting and mounting tires, care must be taken when breaking the bead loose from the
wheel. If the tire machines bead breaking fixture is positioned too close to the tire pressure sensor,
as the tire bead breaks away from the wheel it may be forced into, or catch on the edge of the tire
pressure sensor. This can damage the sensor and require the sensor to be replaced.
Care must also be taken when transferring the tire bead to the other side of the wheel rim. As the
tire machine rotates and the tire bead is stretched around the wheel rim, the bead can come in
contact with the sensor if it is not correctly positioned in relation to the mounting/dismounting head
prior to tire mounting/dismounting. This can also cause sensor damage requiring replacement.
Procedure
Notice:
Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in
order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result.
Notice:
Do not scratch or damage the clear coating on aluminum wheels with the tire changing equipment.
Scratching the clear coating could cause the aluminum wheel to corrode and the clear coating to
peel from the wheel.
1. Remove the valve core from the valve stem.
2. Deflate the tire completely.
Important:
Rim-clamp European-type tire changers are recommended.
3. Use the tire changer in order to remove the tire from the wheel. Follow steps 4-7 to remove the
tire from the wheel.
4. When separating the tire bead from the wheel position the bead breaking fixture 90, 180 and 270
degrees from the valve stem.
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5. Position the wheel and tire so the valve stem is situated at the 2 o'clock position relative to the
head. The tire iron or pry bar can be inserted when prying the outer tire bead up and over the
mounting/dismounting head.
6. Position the wheel and tire so that the valve stem is situated again at the 2 o'clock position
relative to the head. The tire iron or pry bar can be inserted when prying the inner tire bead up and
over the mounting/dismounting head.
7. Remove all residual liquid sealant from the inside of the tire and wheel surfaces. If any tire
sealant is noted upon tire dismounting on vehicles equipped with TPM replace the tire pressure
sensor.
8. Use a wire brush or coarse steel wool in order to remove any rubber, light rust or corrosion from
the wheel bead seats.
Important:
If bead seat corrosion has been identified as an air loss concern on the wheel being worked on,
refer to GM Service Bulletin # 08-03-10-006 for additional information on correcting the leak.
9. Apply GM P/N 12345884 (in Canada, P/N 5728223) or equivalent to the tire bead and the wheel
rim.
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10. Using the tire machine, rotate the tire/wheel assembly clockwise when transferring the tire bead
to the inside of the wheel rim.
11. Position the rim so that the valve stem (1) is situated at the 3 o'clock position relative to the
head (2). This will protect the sensor when the bottom bead seats.
12. After the bottom bead is on the wheel, reposition the wheel and tire so that the valve stem is
situated at the 9 o'clock position relative to the head. This will protect the sensor while mounting
the tire bead to the outside of the wheel.
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13. Use the tire changer in order to install the tire to the wheel.
Caution:
To avoid serious personal injury, do not stand over tire when inflating. The bead may break when
the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any
tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, lubricate
the beads and reinflate. Overinflating may cause the bead to break and cause serious personal
injury.
Important:
Allowable bead seating pressure is 345 kPa (50 psi) on Extended Mobility Tires.
14. Inflate the tire until it passes the bead humps. Be sure that the valve core is not installed at this
time.
15. Install the valve core to the valve core stem.
16. Inflate the tire to the proper air pressure.
17. Ensure that the locating rings are visible on both sides of the tire in order to verify that the tire
bead is fully seated on the wheel.
Parts Information
The product shown above is available from GM SPO.
Disclaimer
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Technical Service
Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips
Tires: Technical Service Bulletins Tire Pressure Monitor - TPM System Message/Service Tips
# 09-03-16-002A: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive
for Tire Pressure Monitor (TPM) System Message, Light and Customer Information - (Apr 27, 2010)
Subject: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire
Pressure Monitor (TPM) System Message, Light and Customer Information
Models: 2006-2011 Cars and Light Duty Trucks (Including Saturn and Saab)
2006-2010 HUMMER H2, H3
ATTENTION
The information found in this bulletin is to be used as a dealership service consultant procedures
for customers coming into the service lane with an illuminated "low tire light" or comments on a
check tire pressure/low tire pressure/add air to tire or service tire monitor system message.
Maintaining proper tire pressures is an Owner's Maintenance item and is not covered under
warranty.
This bulletin is being revised to add model years and update additional bulletin reference
information. Please discard Corporate Bulletin Number 09-03-16-002 (Section 03 -- Suspension).
Customer Concerns and Confusion with the Tire Pressure Monitoring (TPM) System
The following procedure should be used by dealership service consultants when a customer comes
into the service drive with a "low tire light" on or comments on a check tire pressure/low tire
pressure/add air to tire or service tire monitor system message. The service consultant should
perform the following steps:
Procedure
Turn the key to ON, without starting the engine.
^ If the low tire light comes on and stays on solid with a check tire pressure/low tire pressure/add
air to tire message (on vehicles equipped with DIC),
advise the customer:
- The system is working properly.
- Properly adjusting all tire air pressures to the recommended levels and driving the vehicle will turn
the light off (refer to the Tire and Loading Information label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
^ If the Tire Pressure Monitor (TPM) light blinks for one minute then stays on solid with a service
tire monitor system message (on vehicles equipped
with DIC):
- A TPM system problem exists. The vehicle should be written up accordingly and sent to your
service department for further DTC diagnosis and service.
- If dashes (--) are displayed in only one or two of the tire pressure readouts, it is likely caused by a
previous TPM system relearn that was performed incorrectly due to interference from another
vehicle's TPM system during the relearn process (refer to the Important statement later in this
bulletin regarding TPM relearn with a Tech 2(R)).
- If dashes (--) are displayed in all four of the tire pressure readouts, there is a system problem.
Follow the appropriate SI service procedures.
^ If a customer indicates the low tire light comes on for a few minutes when the vehicle is started,
then goes off after driving a while, advise the
customer:
- The system is working properly.
- Most likely, air pressure in one or more of the tires is low enough to turn the light on when tires
are cold. After driving for a while, tires will heat
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Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 3230
up, allowing tire air pressure to increase above the threshold causing the light to go off. Properly
adjusting all tire air pressures to the recommended levels will correct this (Refer to the Tire and
Loading Information Label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
For more detailed information, refer to Corporate Bulletin Number 07-03-16-004C and TPMS
Training Course 13044.12T2.
Tire Pressure Light
At key on, without starting the vehicle:
Steady Solid Glowing TPM Indicator
If the TPM indicator appears as a steady glowing yellow lamp (as above), the system is functioning
properly and you should add air to the tires to correct this condition.
Blinking TPM Indicator
If the TPM indicator appears as a BLINKING yellow lamp for one minute and then stays on solid,
diagnostic service is needed.
The Effect of Outside Temperature on Tire Pressures
Important:
As a rule of thumb, tire pressure will change about 7kPa (1 psi) for every 6°C (10°F) decrease in
temperature - Tire pressure will drop when it gets colder outside, and rise when it gets warmer.
Under certain situations such as extreme outside temperature changes, the system may bring on a
solid light with a check tire pressure message. This should be considered normal and the system is
working properly. The light will turn off upon adding the proper amount of air to the tires (refer to the
Tire & Loading Information label in the driver's door opening). When properly adjusting tire air
pressure, the following steps are important to help optimize the system and prolong bringing a tire
pressure light on:
^ Use an accurate, high quality tire pressure gauge.
^ Never set the tire pressure below the specified placard value regardless of tire temperature or
ambient temperature.
^ Tire pressure should be set to the specified placard pressure at the lowest seasonal temperature
the vehicle will encounter during operation.
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Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 3231
^ When adding proper tire air pressure, it is important to remember fluctuations in outside air
temperatures and tire temperatures effect tire air pressures.
^ After you have added the proper tire pressure, if the vehicle has a DIC (after the system has
updated), check to see if DIC displays are the same
readings as the tire pressure gauge used (adjust as necessary).
^ Only perform a TPM sensor re-learn after a tire rotation or system part replacements and use the
Tech 2(R) to initiate the relearn whenever possible to
avoid invalid sensor I.D. learns.
Important:
Always take outside temperature and tire temperature into consideration to properly set tire
pressures. Foe example, on colder days (20°F/-7°C), if setting tire pressure when the vehicle has
been indoors (60°F/16°C) or the tires are warm from being driven, it will be necessary to
compensate for the low outside temperature by adding 21-27 kPa (3-4 psi) more then the
placecard pressure. At some later time, when the vehicle has been parked outside for a while, the
tires will cool off and the pressures will drop back into the placecard range.
Important:
Recently, nitrogen gas (for use in inflating tires) has become available to the general customer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. Tires inflated with nitrogen gas may exhibit less of a pressure change in response to
outside temperature changes. Nitrogen gas inflation is compatible with GM TPM sensors. For
additional information, refer to Corporate Service Bulletin 05-03-10-020C.
Important:
All Models (Except the Pontiac Vibe): Do not perform a TPM relearn at PDI, the system has already
been set at the Assembly Plant. Do not perform a TPM relearn after adding air to the tires. The low
tire light is similar to the low fuel indicator and adding something (fuel, air) to the vehicle makes that
light turn back off again. Note that because of system behavior, some vehicles must be driven a
short distance before the sensors recognize the increase in pressure and turns the light off again.
Pontiac Vibe Only: Do not use the TPMS reset button to turn off the light. The system will update
and light will turn off when all tire pressures have been adjusted followed by short distance drive.
Important:
All models (except the Pontiac Vibe): Each tire monitor sensor is learned to a specific vehicle
corner. When performing a TPM relearn (only after a tire rotation or replacement of a TPM sensor
or Module), always use the Tech2(R) to initiate the J 46079 relearned process. Tech 2(R) - initiated
relearns lock out other vehicle TPM signals that may be broadcasting in the area. Only signals
initiated by the J 46079 tool will be accepted. This method avoids storing false TPM I.D.s and will
prevent customers from returning with dashes (--) displayed in tire pressure readouts and/or a
flashing tire pressure monitor (TPM) light. Checking the four TPM I.D.s with the Tech 2(R) prior to
and following relearn to verify they are the same can prevent invalid I.D. learns.
Pontiac Vibe Only: Tire Monitor Sensors are not learned to a specific vehicle corner. Do not
perform a TPM Reset after tire rotation. The TPMS Reset button must only be used during
pre-delivery inspection by the dealer to initialize the system (after all tire pressures have been
adjusted properly) or when a Tire Pressure Monitor System component is replaced. The J 46079
tool does not work on Vibe TPM sensors. A TPMS relearn on Vibe must be preformed with a Tech
2(R) to set the TPMS Module in learn mode. The TPMS sensor IDs are entered through the Tech
2(R). Refer to SI for further Vibe TPMS information.
Labor Operation and Repair Order/Warranty System Claim Required Documentation
Important:
The ONLY time labor operation E0726 or E0722 should be used is to diagnose for a system issue.
That should ONLY occur if, at key ON, without starting the engine, the Tire Pressure Monitor (TPM)
blinks for one minute and then stays on solid with a Service Tire Monitor System message (on
vehicles equipped with a DIC) If that occurs, a TPM system problem exists and the system will
have set a DTC. If one of these operastions is used, the following Repair Order and Warranty
System documentation are required:
^ Document the customer complaint on the Repair Order.
^ Document the TPMS DTC that has set on the Repair Order.
^ Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim
submission (refer to the Claims Processing Manual,
Section IV, Warranty claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim
may be rejected. If the Warranty Parts Center (WPC) generates a request, this repair order
documentation must be sent back.
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Customer TPMS Information
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Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 3234
Frequently Asked Questions
Disclaimer
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Technical Service
Bulletins > Technical Service Bulletins for Tires: > 10-03-16-001 > Jul > 10 > TPMS System - Service And Re-Learning
Sensor IDs
Tires: Technical Service Bulletins TPMS System - Service And Re-Learning Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Technical Service
Bulletins > Technical Service Bulletins for Tires: > 04-03-10-001F > Apr > 10 > Tires/Wheels - Tire Puncture Repair
Procedures
Tires: Technical Service Bulletins Tires/Wheels - Tire Puncture Repair Procedures
INFORMATION
Bulletin No.: 04-03-10-001F
Date: April 27, 2010
Subject: Tire Puncture Repair Procedures For All Cars and Light Duty Trucks
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2010 and Prior
HUMMER H2, H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 04-03-10-001E (Section 03 - Suspension).
This bulletin covers puncture repair procedures for passenger car and light duty truck radial tires in
the tread area only. The tire manufacturer must be contacted for its individual repair policy and
whether or not the speed rating is retained after repair.
Caution
- Tire changing can be dangerous and should be done by trained professionals using proper tools
and procedures. Always read and understand any manufacturer's warnings contained in their
customers literature or molded into the tire sidewall.
- Serious eye and ear injury may result from not wearing adequate eye and ear protection while
repairing tires.
- NEVER inflate beyond 275 kPa (40 pounds) pressure to seat beads.
Some run flat tires, such as the Goodyear Extended Mobility Tire (EMT) used on the Corvette, may
require more than 275 kPa (40 psi) to seat the bead. In such a case, a tire safety cage must be
used. Consult the tire manufacturer for its individual repair policy.
- NEVER stand, lean or reach over the assembly during inflation.
Repairable area on a radial tire.
Important
- NEVER repair tires worn to the tread indicators 1.59 mm (2/32") remaining depth).
- NEVER repair tires with a tread puncture larger than 6.35 mm (1/4").
- NEVER substitute an inner tube for a permissible or non-permissible repair.
- NEVER perform an outside-in tire repair (plug only, on the wheel).
- Every tire must be removed from the wheel for proper inspection and repair.
- Regardless of the type of repair used, the repair must seal the inner liner and fill the injury.
- Consult with repair material supplier/manufacturer for repair unit application procedures and
repair tools/repair material recommendations.
Three basic steps for tire puncture repair:
1. Remove the tire from the wheel for inspection and repair.
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Bulletins > Technical Service Bulletins for Tires: > 04-03-10-001F > Apr > 10 > Tires/Wheels - Tire Puncture Repair
Procedures > Page 3244
2. Fill the injury (puncture) to keep moisture out. 3. Seal the inner liner with a repair unit to prevent
air loss.
External Inspection
1. Prior to demounting, inspect the tire surface, the valve and the wheel for the source of the leak
by using a water and soap solution. Mark the
injured area and totally deflate the tire by removing the valve core.
2. Demount the tire from the wheel and place the tire on a well-lighted spreader.
Internal Inspection
1. Spread the beads and mark the puncture with a tire crayon. 2. Inspect the inner tire for any signs
of internal damage. 3. Remove the puncturing object, noting the direction of the penetration. 4.
Probe the injury with a blunt awl in order to determine the extent and direction of the injury. 5.
Remove any loose foreign material from the injury. 6. Punctures exceeding 6.35 mm (1/4") should
not be repaired.
Cleaning
1. Clean the area around the puncture thoroughly with a proper liner cleaner, clean cloth and a
scraper. This step serves to remove dirt and mold
lubricants to insure proper adhesion and non-contamination of the buffing tool.
2. Refer to information on the product or manufacturer's Material Safety Data Sheet and follow
guidelines for handling and disposal.
Clean the Injury Channel
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Technical Service
Bulletins > Technical Service Bulletins for Tires: > 04-03-10-001F > Apr > 10 > Tires/Wheels - Tire Puncture Repair
Procedures > Page 3245
1. Use a proper hand reamer, carbide cutter or drill bit to ream the puncture channel from the inside
of the tire in order to clean the injury. 2. Remove steel wires protruding above the liner surface to
prevent damage to the repair unit. 3. Consult your repair material supplier for recommended
reaming tool(s).
Fill the Injury
1. It is necessary to fill the injury channel to provide back up for the repair unit and to prevent
moisture from entering the tire fabric and steel wires. 2. (For combination repair/plug units skip this
step.) Cement the injured channel and fill the injury from the inside of the tire with the repair plug
per
repair material manufacturer's recommendations. Without stretching the plug, cut the plug off just
above the inside tire surface.
3. Consult your repair material supplier for proper repair material selection.
Repair Unit Selection
Important Do not install the repair unit in this step.
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Bulletins > Technical Service Bulletins for Tires: > 04-03-10-001F > Apr > 10 > Tires/Wheels - Tire Puncture Repair
Procedures > Page 3246
1. Center the repair unit over the injury as a reference and outline an area larger than the unit so
that buffing will not remove the crayon marks. 2. Remove the repair unit. 3. DO NOT overlap
previous or multiple repair units. 4. Consult your repair material supplier for proper repair unit
selection.
Buffing
1. To prevent contamination and preserve the outline, buff within the marked area thoroughly and
evenly with a low speed buffing tool using a fine
wire brush or gritted rasp.
2. Buff to a smooth velvet surface (RMA #1 or #2 buffed texture). 3. Use caution not to gouge the
inner liner or expose casing fabric. 4. Remove any buffing dust with a vacuum cleaner. 5. Consult
your repair material supplier for a proper buffing tool.
Cementing
Apply chemical cement according to the repair material manufacturer's procedures.
Repair Unit Application
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Bulletins > Technical Service Bulletins for Tires: > 04-03-10-001F > Apr > 10 > Tires/Wheels - Tire Puncture Repair
Procedures > Page 3247
1. The tire must be in the relaxed position when the repair unit is installed (Do not spread the beads
excessively).
Two-Piece Plug and Repair Units
1. If applicable, install the repair unit so that the alignment is correct. 2. Center the repair unit over
the injury and stitch down thoroughly with the stitching tool, working from the center out.
3. Being careful not to stretch the plug material, cut the plug flush with the outer tread.
Combination Repair/Plug Units
1. Pull the plug through the injury until the repair just reaches the liner. Stitch down thoroughly. 2.
Follow the repair material manufacturer's recommendations for further installation instructions.
2. Consult your repair material supplier for the proper stitching tool.
Safety Cage
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Technical Service
Bulletins > Technical Service Bulletins for Tires: > 04-03-10-001F > Apr > 10 > Tires/Wheels - Tire Puncture Repair
Procedures > Page 3248
Some run flat tires, such as the Goodyear Extended Mobility Tire (EMT) used on the Corvette, may
require more than 275 kPa (40 psi) to seat the bead. In such a case, a tire safety cage must be
used. Consult the tire manufacturer for its individual repair policy.
Final Inspection
1. After remounting and inflating the tire, check both beads, the repair and the valve with a water
and soap solution in order to detect leaks. 2. If the tire continues to lose air, the tire must be
demounted and reinspected. 3. Balance the tire and wheel assembly. Refer to Tire and Wheel
Assembly Balancing - OFF Vehicle.
For additional tire puncture repair information, contact:
Rubber Manufacturers Association (RMA)
Disclaimer
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Technical Service
Bulletins > Technical Service Bulletins for Tires: > 05-03-10-020C > Apr > 10 > Wheels/Tires - Use of Nitrogen Gas in Tires
Tires: Technical Service Bulletins Wheels/Tires - Use of Nitrogen Gas in Tires
INFORMATION
Bulletin No.: 05-03-10-020C
Date: April 27, 2010
Subject: Use of Nitrogen Gas in Tires
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 05-03-10-020B (Section 03 - Suspension).
GM's Position on the Use of Nitrogen Gas in Tires
General Motors does not oppose the use of purified nitrogen as an inflation gas for tires. We expect
the theoretical benefits to be reduced in practical use due to the lack of an existing infrastructure to
continuously facilitate inflating tires with nearly pure nitrogen. Even occasional inflation with
compressed atmospheric air will negate many of the theoretical benefits. Given those theoretical
benefits, practical limitations, and the robust design of GM original equipment TPC tires, the
realized benefits to our customer of inflating their tires with purified nitrogen are expected to be
minimal.
The Promise of Nitrogen: Under Controlled Conditions
Recently, nitrogen gas (for use in inflating tires) has become available to the general consumer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. The following benefits under controlled conditions are attributed to nitrogen gas and its
unique properties:
- A reduction in the expected loss of Tire Pressure over time.
- A reduction in the variance of Tire Pressures with temperature changes due to reduction of water
vapor concentration.
- A reduction of long term rubber degradation due to a decrease in oxygen concentrations.
Important These are obtainable performance improvements when relatively pure nitrogen gas is
used to inflate tires under controlled conditions.
The Promise of Nitrogen: Real World Use
Nitrogen inflation can provide some benefit by reducing gas migration (pressure loss) at the
molecular level through the tire structure. NHTSA (National Highway Traffic Safety Administration)
has stated that the inflation pressure loss of tires can be up to 5% a month. Nitrogen molecules are
larger than oxygen molecules and, therefore, are less prone to "seeping" through the tire casing.
The actual obtainable benefits of nitrogen vary, based on the physical construction and the
materials used in the manufacturing of the tire being inflated.
Another potential benefit of nitrogen is the reduced oxidation of tire components. Research has
demonstrated that oxygen consumed in the oxidation process of the tire primarily comes from the
inflation media. Therefore, it is reasonable to assume that oxidation of tire components can be
reduced if the tire is inflated with pure nitrogen. However, only very small amounts of oxygen are
required to begin the normal oxidation process. Even slight contamination of the tire inflation gas
with compressed atmospheric air during normal inflation pressure maintenance, may negate the
benefits of using nitrogen.
GM Tire Quality, Technology and Focus of Importance
Since 1972, General Motors has designed tires under the TPC (Tire Performance Criteria)
specification system, which includes specific requirements that ensure robust tire performance
under normal usage. General Motors works with tire suppliers to design and manufacture original
equipment tires for GM vehicles. The GM TPC addresses required performance with respect to
both inflation pressure retention, and endurance properties for original equipment tires. The
inflation pressure retention requirements address availability of oxygen and oxidation concerns,
while endurance requirements ensure the mechanical structure of the tire has sufficient strength.
This combination has provided our customers with tires that maintain their structural integrity
throughout their useful treadlife under normal operating conditions.
Regardless of the inflation media for tires (atmospheric air or nitrogen), inflation pressure
maintenance of tires is critical for overall tire, and ultimately, vehicle performance. Maintaining the
correct inflation pressure allows the tire to perform as intended by the vehicle manufacturer in
many areas, including comfort, fuel economy, stopping distance, cornering, traction, treadwear,
and noise. Since the load carrying capability of a tire is related to inflation pressure, proper inflation
pressure maintenance is necessary for the tire to support the load imposed by the vehicle without
excessive structural
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Technical Service
Bulletins > Technical Service Bulletins for Tires: > 05-03-10-020C > Apr > 10 > Wheels/Tires - Use of Nitrogen Gas in Tires
> Page 3253
degradation.
Important Regardless of the inflation media for tires (atmospheric air or nitrogen), inflation pressure
maintenance of tires is critical for overall tire, and ultimately, vehicle performance.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Technical Service
Bulletins > Technical Service Bulletins for Tires: > 09-03-16-002A > Apr > 10 > Tire Pressure Monitor - TPM System
Message/Service Tips
Tires: Technical Service Bulletins Tire Pressure Monitor - TPM System Message/Service Tips
# 09-03-16-002A: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive
for Tire Pressure Monitor (TPM) System Message, Light and Customer Information - (Apr 27, 2010)
Subject: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire
Pressure Monitor (TPM) System Message, Light and Customer Information
Models: 2006-2011 Cars and Light Duty Trucks (Including Saturn and Saab)
2006-2010 HUMMER H2, H3
ATTENTION
The information found in this bulletin is to be used as a dealership service consultant procedures
for customers coming into the service lane with an illuminated "low tire light" or comments on a
check tire pressure/low tire pressure/add air to tire or service tire monitor system message.
Maintaining proper tire pressures is an Owner's Maintenance item and is not covered under
warranty.
This bulletin is being revised to add model years and update additional bulletin reference
information. Please discard Corporate Bulletin Number 09-03-16-002 (Section 03 -- Suspension).
Customer Concerns and Confusion with the Tire Pressure Monitoring (TPM) System
The following procedure should be used by dealership service consultants when a customer comes
into the service drive with a "low tire light" on or comments on a check tire pressure/low tire
pressure/add air to tire or service tire monitor system message. The service consultant should
perform the following steps:
Procedure
Turn the key to ON, without starting the engine.
^ If the low tire light comes on and stays on solid with a check tire pressure/low tire pressure/add
air to tire message (on vehicles equipped with DIC),
advise the customer:
- The system is working properly.
- Properly adjusting all tire air pressures to the recommended levels and driving the vehicle will turn
the light off (refer to the Tire and Loading Information label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
^ If the Tire Pressure Monitor (TPM) light blinks for one minute then stays on solid with a service
tire monitor system message (on vehicles equipped
with DIC):
- A TPM system problem exists. The vehicle should be written up accordingly and sent to your
service department for further DTC diagnosis and service.
- If dashes (--) are displayed in only one or two of the tire pressure readouts, it is likely caused by a
previous TPM system relearn that was performed incorrectly due to interference from another
vehicle's TPM system during the relearn process (refer to the Important statement later in this
bulletin regarding TPM relearn with a Tech 2(R)).
- If dashes (--) are displayed in all four of the tire pressure readouts, there is a system problem.
Follow the appropriate SI service procedures.
^ If a customer indicates the low tire light comes on for a few minutes when the vehicle is started,
then goes off after driving a while, advise the
customer:
- The system is working properly.
- Most likely, air pressure in one or more of the tires is low enough to turn the light on when tires
are cold. After driving for a while, tires will heat
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up, allowing tire air pressure to increase above the threshold causing the light to go off. Properly
adjusting all tire air pressures to the recommended levels will correct this (Refer to the Tire and
Loading Information Label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
For more detailed information, refer to Corporate Bulletin Number 07-03-16-004C and TPMS
Training Course 13044.12T2.
Tire Pressure Light
At key on, without starting the vehicle:
Steady Solid Glowing TPM Indicator
If the TPM indicator appears as a steady glowing yellow lamp (as above), the system is functioning
properly and you should add air to the tires to correct this condition.
Blinking TPM Indicator
If the TPM indicator appears as a BLINKING yellow lamp for one minute and then stays on solid,
diagnostic service is needed.
The Effect of Outside Temperature on Tire Pressures
Important:
As a rule of thumb, tire pressure will change about 7kPa (1 psi) for every 6°C (10°F) decrease in
temperature - Tire pressure will drop when it gets colder outside, and rise when it gets warmer.
Under certain situations such as extreme outside temperature changes, the system may bring on a
solid light with a check tire pressure message. This should be considered normal and the system is
working properly. The light will turn off upon adding the proper amount of air to the tires (refer to the
Tire & Loading Information label in the driver's door opening). When properly adjusting tire air
pressure, the following steps are important to help optimize the system and prolong bringing a tire
pressure light on:
^ Use an accurate, high quality tire pressure gauge.
^ Never set the tire pressure below the specified placard value regardless of tire temperature or
ambient temperature.
^ Tire pressure should be set to the specified placard pressure at the lowest seasonal temperature
the vehicle will encounter during operation.
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^ When adding proper tire air pressure, it is important to remember fluctuations in outside air
temperatures and tire temperatures effect tire air pressures.
^ After you have added the proper tire pressure, if the vehicle has a DIC (after the system has
updated), check to see if DIC displays are the same
readings as the tire pressure gauge used (adjust as necessary).
^ Only perform a TPM sensor re-learn after a tire rotation or system part replacements and use the
Tech 2(R) to initiate the relearn whenever possible to
avoid invalid sensor I.D. learns.
Important:
Always take outside temperature and tire temperature into consideration to properly set tire
pressures. Foe example, on colder days (20°F/-7°C), if setting tire pressure when the vehicle has
been indoors (60°F/16°C) or the tires are warm from being driven, it will be necessary to
compensate for the low outside temperature by adding 21-27 kPa (3-4 psi) more then the
placecard pressure. At some later time, when the vehicle has been parked outside for a while, the
tires will cool off and the pressures will drop back into the placecard range.
Important:
Recently, nitrogen gas (for use in inflating tires) has become available to the general customer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. Tires inflated with nitrogen gas may exhibit less of a pressure change in response to
outside temperature changes. Nitrogen gas inflation is compatible with GM TPM sensors. For
additional information, refer to Corporate Service Bulletin 05-03-10-020C.
Important:
All Models (Except the Pontiac Vibe): Do not perform a TPM relearn at PDI, the system has already
been set at the Assembly Plant. Do not perform a TPM relearn after adding air to the tires. The low
tire light is similar to the low fuel indicator and adding something (fuel, air) to the vehicle makes that
light turn back off again. Note that because of system behavior, some vehicles must be driven a
short distance before the sensors recognize the increase in pressure and turns the light off again.
Pontiac Vibe Only: Do not use the TPMS reset button to turn off the light. The system will update
and light will turn off when all tire pressures have been adjusted followed by short distance drive.
Important:
All models (except the Pontiac Vibe): Each tire monitor sensor is learned to a specific vehicle
corner. When performing a TPM relearn (only after a tire rotation or replacement of a TPM sensor
or Module), always use the Tech2(R) to initiate the J 46079 relearned process. Tech 2(R) - initiated
relearns lock out other vehicle TPM signals that may be broadcasting in the area. Only signals
initiated by the J 46079 tool will be accepted. This method avoids storing false TPM I.D.s and will
prevent customers from returning with dashes (--) displayed in tire pressure readouts and/or a
flashing tire pressure monitor (TPM) light. Checking the four TPM I.D.s with the Tech 2(R) prior to
and following relearn to verify they are the same can prevent invalid I.D. learns.
Pontiac Vibe Only: Tire Monitor Sensors are not learned to a specific vehicle corner. Do not
perform a TPM Reset after tire rotation. The TPMS Reset button must only be used during
pre-delivery inspection by the dealer to initialize the system (after all tire pressures have been
adjusted properly) or when a Tire Pressure Monitor System component is replaced. The J 46079
tool does not work on Vibe TPM sensors. A TPMS relearn on Vibe must be preformed with a Tech
2(R) to set the TPMS Module in learn mode. The TPMS sensor IDs are entered through the Tech
2(R). Refer to SI for further Vibe TPMS information.
Labor Operation and Repair Order/Warranty System Claim Required Documentation
Important:
The ONLY time labor operation E0726 or E0722 should be used is to diagnose for a system issue.
That should ONLY occur if, at key ON, without starting the engine, the Tire Pressure Monitor (TPM)
blinks for one minute and then stays on solid with a Service Tire Monitor System message (on
vehicles equipped with a DIC) If that occurs, a TPM system problem exists and the system will
have set a DTC. If one of these operastions is used, the following Repair Order and Warranty
System documentation are required:
^ Document the customer complaint on the Repair Order.
^ Document the TPMS DTC that has set on the Repair Order.
^ Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim
submission (refer to the Claims Processing Manual,
Section IV, Warranty claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim
may be rejected. If the Warranty Parts Center (WPC) generates a request, this repair order
documentation must be sent back.
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Customer TPMS Information
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Frequently Asked Questions
Disclaimer
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Bulletins > Technical Service Bulletins for Tires: > 07-03-10-008B > Aug > 09 > Tires - Slight/Mild Edge Feathering
Information
Tires: Technical Service Bulletins Tires - Slight/Mild Edge Feathering Information
INFORMATION
Bulletin No.: 07-03-10-008B
Date: August 13, 2009
Subject: Information on Slight or Mild Tire Feathering and Recommended Practices (Normal Tire
Wear Condition)
Models:
2006-2010 GM Passenger Cars and Light Duty Trucks (including Saturn) 2006-2010 HUMMER H2,
H3 2006-2009 Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 07-03-10-008A (Section 03 - Suspension).
This bulletin provides information regarding the normal tire wear condition of slight or mild tire
feathering and recommended practices.
If a vehicle comes into a dealership with a concern of slight or mild feathering-type wear on the
tires, review with the customer their past tire rotation history. Tires should be rotated every 8,000 to
13,000 km (5,000 to 8,000 mi) for applicable vehicles with tires where a tire rotation is possible or
recommended. Refer to Corporate Bulletin Number 05-03-10-015B for information on tire rotation
for vehicles with different front/rear tire/wheel sizes.
SOME TIRE FEATHERING IS A NORMAL PART OF TIRE WEAR AND THROUGH PROPER
TIRE ROTATION AND INFLATION, THIS TIRE WEAR CAN BE MINIMIZED AND TIRE LIFE
MAXIMIZED.
If the customer has not rotated the tires within the last 8,000 to 13,000 km (5,000 to 8,000 mi), a
tire rotation in the modified X-pattern is necessary to clean-up the feathering, rather than placing
the vehicle on the alignment machine.
Disclaimer
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Bulletins > Technical Service Bulletins for Tires: > 00-00-90-002J > Jan > 09 > Tires - Correct Inflation Pressure Information
Tires: Technical Service Bulletins Tires - Correct Inflation Pressure Information
INFORMATION
Bulletin No.: 00-00-90-002J
Date: January 28, 2009
Subject: Information on Proper Tire Pressure
Models: 2010 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2009 and
Prior HUMMER H2, H3, H3T 2005-2009 Saab 9-7X
Supercede:
This bulletin is being revised to add model years and clarify additional information. Please discard
Corporate Bulletin Number 00-00-90-002I (Section 00 - General Information).
Important:
^ Adjustment of tire pressure for a customer with a Low Tire Pressure Monitor (TPM) light on and
no codes in the TPM system is NOT a warrantable repair. Claims to simply adjust the tire pressure
will be rejected.
^ ALL tires (including the spare tire) MUST be set to the recommended inflation pressure stated on
the vehicle's tire placard (on driver's door) during the PRE-DELIVERY INSPECTION (PDI).
Recommended inflation pressure is not the pressure printed on tire sidewall.
^ Tires may be over-inflated from the assembly plant due to the mounting process.
^ Generally a 5.6°C (10°F) temperature change will result in (is equivalent to) a 6.9 kPa (1 psi) tire
pressure change.
^ 2008-2009 HUMMER H2 Only - The H2 comes standard with Light Truck "D" Load Range tires
with a recommended cold inflation pressure of 289 kPa (42 psi). These tires will alert the driver to a
low pressure situation at roughly 262 kPa (38 psi) due to a requirement in FMVSS 138 which
specifies a Minimum Activation Pressure for each tire type. This creates a relatively narrow window
of "usable" pressure values and the warning will be more sensitive to outside temperature changes
during the colder months. As with other cold temperature/tire pressure issues, there is nothing
wrong with the system itself. If a vehicle is brought in with this concern, check for tire damage and
set all tires to the Recommended Cold Inflation Pressure shown on the vehicle placard.
Accurate tire pressures ensure the safe handling and appropriate ride characteristics of GM cars
and trucks. It is critical that the tire pressure be adjusted to the specifications on the vehicle¡C■s
tire placard during PDI.
Ride, handling and road noise concerns may be caused by improperly adjusted tire pressure.
The first step in the diagnosis of these concerns is to verify that the tires are inflated to the correct
pressures. The recommended tire inflation pressure is listed on the vehicle¡C■s tire placard. The
tire placard is located on the driver¡C■s side front or rear door edge, center pillar, or the rear
compartment lid.
Tip
^ Generally a 5.6°C (10°F) temperature increase will result in (is equivalent to) a 6.9 kPa (1 psi) tire
pressure increase.
^ The definition of a "cold" tire is one that has been sitting for at least 3 hours, or driven no more
than 1.6 km (1 mi).
^ On extremely cold days, if the vehicle has been indoors, it may be necessary to compensate for
the low external temperature by adding additional air to the tire during PDI.
^ During cold weather, the Tire Pressure Monitor (TPM) indicator light (a yellow horseshoe with an
exclamation point) may illuminate. If this indicator turns off after the tires warm up (reach operating
temperature), the tire pressure should be reset to placard pressure at the cold temperature.
^ The TPM system will work correctly with nitrogen in tires.
^ The TPM system is compatible with the GM Vehicle Care Tire Sealant but may not be with other
commercially available sealants.
Important:
^ Do not use the tire pressure indicated on the tire itself as a guide.
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^ Always inspect and adjust the pressure when the tires are cold.
^ Vehicles that have different pressures for the front and the rear need to be adjusted after tire
rotation.
Improper tire inflation may result in any or all of the following conditions:
^ Premature tire wear
^ Harsh ride
^ Excessive road noise
^ Poor handling
^ Reduced fuel economy
^ Low Tire Pressure Monitor (TPM) Light ON
^ Low Tire Pressure Message on the Drivers Information Center (DIC)
Disclaimer
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Tires: Technical Service Bulletins TPMS System - Service And Re-Learning Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
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Tires: Technical Service Bulletins Wheels/Tires - Use of Nitrogen Gas in Tires
INFORMATION
Bulletin No.: 05-03-10-020C
Date: April 27, 2010
Subject: Use of Nitrogen Gas in Tires
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 05-03-10-020B (Section 03 - Suspension).
GM's Position on the Use of Nitrogen Gas in Tires
General Motors does not oppose the use of purified nitrogen as an inflation gas for tires. We expect
the theoretical benefits to be reduced in practical use due to the lack of an existing infrastructure to
continuously facilitate inflating tires with nearly pure nitrogen. Even occasional inflation with
compressed atmospheric air will negate many of the theoretical benefits. Given those theoretical
benefits, practical limitations, and the robust design of GM original equipment TPC tires, the
realized benefits to our customer of inflating their tires with purified nitrogen are expected to be
minimal.
The Promise of Nitrogen: Under Controlled Conditions
Recently, nitrogen gas (for use in inflating tires) has become available to the general consumer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. The following benefits under controlled conditions are attributed to nitrogen gas and its
unique properties:
- A reduction in the expected loss of Tire Pressure over time.
- A reduction in the variance of Tire Pressures with temperature changes due to reduction of water
vapor concentration.
- A reduction of long term rubber degradation due to a decrease in oxygen concentrations.
Important These are obtainable performance improvements when relatively pure nitrogen gas is
used to inflate tires under controlled conditions.
The Promise of Nitrogen: Real World Use
Nitrogen inflation can provide some benefit by reducing gas migration (pressure loss) at the
molecular level through the tire structure. NHTSA (National Highway Traffic Safety Administration)
has stated that the inflation pressure loss of tires can be up to 5% a month. Nitrogen molecules are
larger than oxygen molecules and, therefore, are less prone to "seeping" through the tire casing.
The actual obtainable benefits of nitrogen vary, based on the physical construction and the
materials used in the manufacturing of the tire being inflated.
Another potential benefit of nitrogen is the reduced oxidation of tire components. Research has
demonstrated that oxygen consumed in the oxidation process of the tire primarily comes from the
inflation media. Therefore, it is reasonable to assume that oxidation of tire components can be
reduced if the tire is inflated with pure nitrogen. However, only very small amounts of oxygen are
required to begin the normal oxidation process. Even slight contamination of the tire inflation gas
with compressed atmospheric air during normal inflation pressure maintenance, may negate the
benefits of using nitrogen.
GM Tire Quality, Technology and Focus of Importance
Since 1972, General Motors has designed tires under the TPC (Tire Performance Criteria)
specification system, which includes specific requirements that ensure robust tire performance
under normal usage. General Motors works with tire suppliers to design and manufacture original
equipment tires for GM vehicles. The GM TPC addresses required performance with respect to
both inflation pressure retention, and endurance properties for original equipment tires. The
inflation pressure retention requirements address availability of oxygen and oxidation concerns,
while endurance requirements ensure the mechanical structure of the tire has sufficient strength.
This combination has provided our customers with tires that maintain their structural integrity
throughout their useful treadlife under normal operating conditions.
Regardless of the inflation media for tires (atmospheric air or nitrogen), inflation pressure
maintenance of tires is critical for overall tire, and ultimately, vehicle performance. Maintaining the
correct inflation pressure allows the tire to perform as intended by the vehicle manufacturer in
many areas, including comfort, fuel economy, stopping distance, cornering, traction, treadwear,
and noise. Since the load carrying capability of a tire is related to inflation pressure, proper inflation
pressure maintenance is necessary for the tire to support the load imposed by the vehicle without
excessive structural
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degradation.
Important Regardless of the inflation media for tires (atmospheric air or nitrogen), inflation pressure
maintenance of tires is critical for overall tire, and ultimately, vehicle performance.
Disclaimer
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Tires: Technical Service Bulletins Tires/Wheels - Tire Puncture Repair Procedures
INFORMATION
Bulletin No.: 04-03-10-001F
Date: April 27, 2010
Subject: Tire Puncture Repair Procedures For All Cars and Light Duty Trucks
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2010 and Prior
HUMMER H2, H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 04-03-10-001E (Section 03 - Suspension).
This bulletin covers puncture repair procedures for passenger car and light duty truck radial tires in
the tread area only. The tire manufacturer must be contacted for its individual repair policy and
whether or not the speed rating is retained after repair.
Caution
- Tire changing can be dangerous and should be done by trained professionals using proper tools
and procedures. Always read and understand any manufacturer's warnings contained in their
customers literature or molded into the tire sidewall.
- Serious eye and ear injury may result from not wearing adequate eye and ear protection while
repairing tires.
- NEVER inflate beyond 275 kPa (40 pounds) pressure to seat beads.
Some run flat tires, such as the Goodyear Extended Mobility Tire (EMT) used on the Corvette, may
require more than 275 kPa (40 psi) to seat the bead. In such a case, a tire safety cage must be
used. Consult the tire manufacturer for its individual repair policy.
- NEVER stand, lean or reach over the assembly during inflation.
Repairable area on a radial tire.
Important
- NEVER repair tires worn to the tread indicators 1.59 mm (2/32") remaining depth).
- NEVER repair tires with a tread puncture larger than 6.35 mm (1/4").
- NEVER substitute an inner tube for a permissible or non-permissible repair.
- NEVER perform an outside-in tire repair (plug only, on the wheel).
- Every tire must be removed from the wheel for proper inspection and repair.
- Regardless of the type of repair used, the repair must seal the inner liner and fill the injury.
- Consult with repair material supplier/manufacturer for repair unit application procedures and
repair tools/repair material recommendations.
Three basic steps for tire puncture repair:
1. Remove the tire from the wheel for inspection and repair.
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2. Fill the injury (puncture) to keep moisture out. 3. Seal the inner liner with a repair unit to prevent
air loss.
External Inspection
1. Prior to demounting, inspect the tire surface, the valve and the wheel for the source of the leak
by using a water and soap solution. Mark the
injured area and totally deflate the tire by removing the valve core.
2. Demount the tire from the wheel and place the tire on a well-lighted spreader.
Internal Inspection
1. Spread the beads and mark the puncture with a tire crayon. 2. Inspect the inner tire for any signs
of internal damage. 3. Remove the puncturing object, noting the direction of the penetration. 4.
Probe the injury with a blunt awl in order to determine the extent and direction of the injury. 5.
Remove any loose foreign material from the injury. 6. Punctures exceeding 6.35 mm (1/4") should
not be repaired.
Cleaning
1. Clean the area around the puncture thoroughly with a proper liner cleaner, clean cloth and a
scraper. This step serves to remove dirt and mold
lubricants to insure proper adhesion and non-contamination of the buffing tool.
2. Refer to information on the product or manufacturer's Material Safety Data Sheet and follow
guidelines for handling and disposal.
Clean the Injury Channel
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1. Use a proper hand reamer, carbide cutter or drill bit to ream the puncture channel from the inside
of the tire in order to clean the injury. 2. Remove steel wires protruding above the liner surface to
prevent damage to the repair unit. 3. Consult your repair material supplier for recommended
reaming tool(s).
Fill the Injury
1. It is necessary to fill the injury channel to provide back up for the repair unit and to prevent
moisture from entering the tire fabric and steel wires. 2. (For combination repair/plug units skip this
step.) Cement the injured channel and fill the injury from the inside of the tire with the repair plug
per
repair material manufacturer's recommendations. Without stretching the plug, cut the plug off just
above the inside tire surface.
3. Consult your repair material supplier for proper repair material selection.
Repair Unit Selection
Important Do not install the repair unit in this step.
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1. Center the repair unit over the injury as a reference and outline an area larger than the unit so
that buffing will not remove the crayon marks. 2. Remove the repair unit. 3. DO NOT overlap
previous or multiple repair units. 4. Consult your repair material supplier for proper repair unit
selection.
Buffing
1. To prevent contamination and preserve the outline, buff within the marked area thoroughly and
evenly with a low speed buffing tool using a fine
wire brush or gritted rasp.
2. Buff to a smooth velvet surface (RMA #1 or #2 buffed texture). 3. Use caution not to gouge the
inner liner or expose casing fabric. 4. Remove any buffing dust with a vacuum cleaner. 5. Consult
your repair material supplier for a proper buffing tool.
Cementing
Apply chemical cement according to the repair material manufacturer's procedures.
Repair Unit Application
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1. The tire must be in the relaxed position when the repair unit is installed (Do not spread the beads
excessively).
Two-Piece Plug and Repair Units
1. If applicable, install the repair unit so that the alignment is correct. 2. Center the repair unit over
the injury and stitch down thoroughly with the stitching tool, working from the center out.
3. Being careful not to stretch the plug material, cut the plug flush with the outer tread.
Combination Repair/Plug Units
1. Pull the plug through the injury until the repair just reaches the liner. Stitch down thoroughly. 2.
Follow the repair material manufacturer's recommendations for further installation instructions.
2. Consult your repair material supplier for the proper stitching tool.
Safety Cage
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Technical Service
Bulletins > Technical Service Bulletins for Tires: > Page 3280
Some run flat tires, such as the Goodyear Extended Mobility Tire (EMT) used on the Corvette, may
require more than 275 kPa (40 psi) to seat the bead. In such a case, a tire safety cage must be
used. Consult the tire manufacturer for its individual repair policy.
Final Inspection
1. After remounting and inflating the tire, check both beads, the repair and the valve with a water
and soap solution in order to detect leaks. 2. If the tire continues to lose air, the tire must be
demounted and reinspected. 3. Balance the tire and wheel assembly. Refer to Tire and Wheel
Assembly Balancing - OFF Vehicle.
For additional tire puncture repair information, contact:
Rubber Manufacturers Association (RMA)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Description and
Operation > Tread Wear Indicators Description
Tires: Description and Operation Tread Wear Indicators Description
Tread Wear Indicators Description
Tread Wear Indicators Description
The original equipment tires have tread wear indicators that show when you should replace the
tires.
The location of these indicators are at 72 degree intervals around the outer diameter of the tire.
The indicators appear as a 6 mm (0.25 in) wide band when the tire tread depth becomes 1.6 mm
(2/32 in).
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Operation > Tread Wear Indicators Description > Page 3283
Tires: Description and Operation Tire Inflation Description
Tire Inflation Description
When you inflate the tires to the recommended inflation pressures, the factory-installed wheels and
tires are designed in order to handle loads to the tire's rated load capacity. Incorrect tire pressures,
or under-inflated tires, can cause the following conditions:
* Vehicle handling concerns
* Poor fuel economy
* Shortened tire life
* Tire overloading
Inspect the tire pressure when the following conditions apply:
* The vehicle has been sitting at least 3 hours.
* The vehicle has not been driven for more than 1.6 km (1 mi).
* The tires are cool.
Inspect the tires monthly or before any extended trip. Adjust the tire pressure to the specifications
on the tire label. Install the valve caps or the extensions on the valves. The caps or the extensions
keep out dust and water.
The kilopascal (kPa) is the metric term for pressure. The tire pressure may be printed in both
kilopascal (kPa) and psi. One psi equals 6.9 kPa.
Inflation Pressure Conversation (Kilopascals To PSI)
Tires with a higher than recommended pressure can cause the following conditions:
* A hard ride
* Tire bruising
* Rapid tread wear at the center of the tire
Tires with a lower than recommended pressure can cause the following conditions:
* A tire squeal on turns
* Hard steering
* Rapid wear and uneven wear on the edge of the tread
* Tire rim bruises and tire rim rupture
* Tire cord breakage
* High tire temperatures
* Reduced vehicle handling
* High fuel consumption
* Soft riding
Unequal pressure on the same axle can cause the following conditions:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Description and
Operation > Tread Wear Indicators Description > Page 3284
* Uneven braking
* Steering lead
* Reduced vehicle handling
Refer to the Tire Placard for specific tire and wheel applications and tire pressures.
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Operation > Tread Wear Indicators Description > Page 3285
Tires: Description and Operation All Seasons Tires Description
All Seasons Tires Description
All Seasons Tires Description
Most Saturn vehicles are equipped with steel belted all-season radial tires as standard equipment.
These tires qualify as snow tires, with a higher than average rating for snow traction than the
non-all season radial tires previously used. Other performance areas, such as wet traction, rolling
resistance, tread life, and air retention, are also improved. This is done by improvements in both
tread design and tread compounds. These tires are identified by an M + S molded in the tire side
wall after the tire size. The suffix MS is also molded in the tire side wall after the TPC specification
number.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Description and
Operation > Tread Wear Indicators Description > Page 3286
Tires: Description and Operation P-Metric Sized Tires Description
P-Metric Sized Tires Description
P-Metric Sized Tires Description
Most P-metric tire sizes do not have exact corresponding alphanumeric tire sizes. Replacement
tires should be of the same tire performance criteria TPC specification number including the same
size, the same load range, and the same construction as those originally installed on the vehicle.
Consult a tire dealer if you must replace the P-metric tire with other sizes. Tire companies can best
recommend the closest match of alphanumeric to P-metric sizes within their own tire lines. The
above illustration may not correspond with your vehicle, but is meant as an example.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Service and Repair >
Procedures
Tires: Procedures
Tire Repair
Tire Repair
Caution:
* Tire changing can be dangerous and should be done by trained professionals using proper tools
and procedures. Always read and understand any manufacturer's warnings contained in their
customers literature or molded into the tire sidewall.
* Serious eye and ear injury may result from not wearing adequate eye and ear protection while
repairing tires.
* NEVER inflate beyond 275 kPa (40 pounds) pressure to seat beads.
* NEVER stand, lean or reach over the assembly during inflation.
Repairable area on a radial tire.
Important:
* NEVER repair tires worn to the tread indicators 1.59 mm (2/32 in) remaining depth.
* NEVER repair tires with a tread puncture larger than 6.35 mm (1/4 in).
* NEVER substitute an inner tube for a permissible or non-permissible repair.
* NEVER perform an outside-in tire repair (plug only, on the wheel).
*
Every tire must be removed from the wheel for proper inspection and repair.
* Regardless of the type of repair used, the repair must seal the inner liner and fill the injury.
* Consult with repair material supplier/manufacturer for repair unit application procedures and
repair tools/repair material recommendations.
Three basic steps for tire puncture repair:
1. Remove the tire from the wheel for inspection and repair. 2. Fill the injury (puncture) to keep
moisture out.
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Procedures > Page 3289
3. Seal the inner liner with a repair unit to prevent air loss.
External Inspection
1. Prior to demounting, inspect the tire surface, the valve and the wheel for the source of the leak
by using a water and soap solution. Mark the
injured area and totally deflate the tire by removing the valve core.
2. Demount the tire from the wheel and place the tire on a well-lighted spreader.
Internal Inspection
1. Spread the beads and mark the puncture with a tire crayon. 2. Inspect the inner tire for any signs
of internal damage. 3. Remove the puncturing object, noting the direction of the penetration. 4.
Probe the injury with a blunt awl in order to determine the extent and direction of the injury. 5.
Remove any loose foreign material from the injury. 6. Punctures exceeding 6.35 mm (1/4 in) should
not be repaired.
Cleaning
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Procedures > Page 3290
1. Clean the area around the puncture thoroughly with a proper liner cleaner, clean cloth and a
scraper. This step serves to remove dirt and mold
lubricants to insure proper adhesion and non-contamination of the buffing tool.
2. Refer to information on the product or manufacturer's Material Safety Data Sheet and follow
guidelines for handling and disposal.
Clean the Injury Channel
1. Use a proper hand reamer, carbide cutter or drill bit to ream the puncture channel from the inside
of the tire in order to clean the injury. 2. Remove steel wires protruding above the liner surface to
prevent damage to the repair unit. 3. Consult your repair material supplier for recommended
reaming tool(s).
Fill the Injury
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Service and Repair >
Procedures > Page 3291
1. It is necessary to fill the injury channel to provide back up for the repair unit and to prevent
moisture from entering the tire fabric and steel wires. 2. For combination repair/plug units skip this
step. Cement the injured channel and fill the injury from the inside of the tire with the repair plug per
repair material manufacturer's recommendations. Without stretching the plug, cut the plug off just
above the inside tire surface.
3. Consult your repair material supplier for proper repair material selection.
Repair Unit Selection
Important: Do not install the repair unit in this step.
1. Center the repair unit over the injury as a reference and outline an area larger than the unit so
that buffing will not remove the crayon marks. 2. Remove the repair unit. 3. DO NOT overlap
previous or multiple repair units. 4. Consult your repair material supplier for proper repair unit
selection.
Buffing
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Procedures > Page 3292
1. To prevent contamination and preserve the outline, buff within the marked area thoroughly and
evenly with a low speed buffing tool using a fine
wire brush or gritted rasp.
2. Buff to a smooth velvet surface (RMA #1 or #2 buffed texture). 3. Use caution not to gouge the
inner liner or expose casing fabric. 4. Remove any buffing dust with a vacuum cleaner. 5. Consult
your repair material supplier for a proper buffing tool.
Cementing
Apply chemical cement according to the repair material manufacturer's procedures.
Repair Unit Application
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Procedures > Page 3293
The tire must be in the relaxed position when the repair unit is installed. Do not spread the beads
excessively.
Two-Piece Plug and Repair Units
1. If applicable, install the repair unit so that the alignment is correct. 2. Center the repair unit over
the injury and stitch down thoroughly with the stitching tool, working from the center out.
3. Being careful not to stretch the plug material, cut the plug flush with the outer tread.
Combination Repair/Plug Units
1. Pull the plug through the injury until the repair just reaches the liner. Stitch down thoroughly. 2.
Follow the repair material manufacturer's recommendations for further installation instructions.
Consult your repair material supplier for the proper stitching tool.
Safety Cage
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Tires > Component Information > Service and Repair >
Procedures > Page 3294
Some run flat tires, such as the Goodyear Extended Mobility Tire (EMT) used on the Corvette, may
require more than 275 kPa (40 psi) to seat the bead. In such a case, a tire safety cage must be
used. Consult the tire manufacturer for its individual repair policy.
Final Inspection
1. After remounting and inflating the tire, check both beads, the repair and the valve with a water
and soap solution in order to detect leaks. 2. If the tire continues to lose air, the tire must be
demounted and reinspected. 3. Balance the tire and wheel assembly. Refer to Tire and Wheel
Assembly Balancing - Off Vehicle.
Tire Rotation
Tire Rotation
Rotate the tires and wheels at frequent intervals to equalize wear. Refer to Maintenance Schedule
(North American Emissions). In addition to scheduled rotation, rotate the tire and wheel whenever
uneven tire wear is noticed.
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Radial tires tend to wear faster in the shoulder area, particularly in front positions. Radial tires in
non-drive locations may develop an irregular wear pattern that may increase tire noise. This makes
regular rotation especially necessary.
Refer to Tire and Wheel Removal and Installation.
Always use a 4-wheel rotation. After rotation, check the wheel nuts for specified torque. Then, set
the tire pressure.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Tires: Removal and Replacement
Tire Mounting and Dismounting
Notice: Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons
alone in order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could
result.
Notice: Do not scratch or damage the clear coating on aluminum wheels with the tire changing
equipment. Scratching the clear coating could cause the aluminum wheel to corrode and the clear
coating to peel from the wheel.
Notice: Damage to either the tire bead or the wheel mounting holes can result from the use of
improper wheel attachment or tire mounting procedures. It takes up to 70 seconds for all of the air
to completely exhaust from a large tire. Failure to follow the proper procedures could cause the tire
changer to put enough force on the tire to bend the wheel at the mounting surface. Such damage
may result in vibration and/or shimmy, and under severe usage lead to wheel cracking.
1. Deflate the tire completely.
Important: Rim-clamp European-type tire changers are recommended.
2. Use the tire changer in order to remove the tire from the wheel. 3. Use a wire brush or coarse
steel wool in order to remove any rubber, light rust or corrosion from the wheel bead seats.
Notice: When mounting the tires, use an approved tire mounting lubricant. DO NOT use silicon or
corrosive base compounds to lubricate the tire bead and the wheel rim. A silicon base compound
can cause the tire to slip on the rim. A corrosive type compound can cause tire or rim deterioration.
4. Apply an approved Lubricant to the tire bead and the wheel rim. 5. Use the tire changer in order
to install the tire to the wheel.
Caution: To avoid serious personal injury, do not stand over tire when inflating. The bead may
break when the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when
inflating any tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads,
deflate, relubricate the beads and reinflate. Overinflation may cause the bead to break and cause
serious personal injury.
6. Inflate the tire to the proper air pressure. 7. Ensure that the locating rings are visible on both
sides of the tire in order to verify that the tire bead is fully seated on the wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > Customer Interest: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial Force Variation (RFV)
Wheels: Customer Interest Wheels/Tires - Tire Radial Force Variation (RFV)
INFORMATION
Bulletin No.: 00-03-10-006F
Date: May 04, 2010
Subject: Information on Tire Radial Force Variation (RFV)
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2, H3 2009
and Prior Saab 9-7X 2000-2005 Saturn L Series 2003-2007 Saturn ION
Supercede: This bulletin is being revised to considerably expand the available information on
Radial Force Variation (RFV) and should be reviewed in whole. Please discard Corporate Bulletin
Number 00-03-10-006E (Section 03 - Suspension).
Important
- Before measuring tires on equipment such as the Hunter GSP9700, the vehicle MUST be driven
a minimum of 16 km (10 mi) to ensure removal of any flat-spotting. Refer to Corporate Bulletin
Number 03-03-10-007E - Tire/Wheel Characteristics of GM Original Equipment Tires.
- Equipment such as the Hunter GSP9700 MUST be calibrated prior to measuring tire/wheel
assemblies for each vehicle.
The purpose of this bulletin is to provide guidance to GM dealers when using tire force variation
measurement equipment, such as the Hunter GSP9700. This type of equipment can be a valuable
tool in diagnosing vehicle ride concerns. The most common ride concern involving tire radial force
variation is highway speed shake on smooth roads.
Tire related smooth road highway speed shake can be caused by three conditions: imbalance, out
of round and tire force variation. These three conditions are not necessarily related. All three
conditions must be addressed.
Imbalance is normally addressed first, because it is the simpler of the three to correct. Off-vehicle,
two plane dynamic wheel balancers are readily available and can accurately correct any
imbalance. Balancer calibration and maintenance, proper attachment of the wheel to the balancer,
and proper balance weights, are all factors required for a quality balance. However, a perfectly
balanced tire/wheel assembly can still be "oval shaped" and cause a vibration.
Before balancing, perform the following procedures.
Tire and Wheel Diagnosis
1. Set the tire pressure to the placard values. 2. With the vehicle raised, ensure the wheels are
centered on the hub by loosening all wheel nuts and hand-tightening all nuts first by hand while
shaking the wheel, then torque to specifications using a torque wrench, NOT a torque stick.
3. Visually inspect the tires and the wheels. Inspect for evidence of the following conditions and
correct as necessary:
- Missing balance weights
- Bent rim flange
- Irregular tire wear
- Incomplete bead seating
- Tire irregularities (including pressure settings)
- Mud/ice build-up in wheel
- Stones in the tire tread
- Remove any aftermarket wheels and/or tires and restore vehicle to original condition prior to
diagnosing a smooth road shake condition.
4. Road test the vehicle using the Electronic Vibration Analyzer (EVA) essential tool. Drive for a
sufficient distance on a known, smooth road
surface to duplicate the condition. Determine if the vehicle is sensitive to brake apply. If the brakes
are applied lightly and the pulsation felt in the steering wheel increases, refer to the Brakes section
of the service manual that deals with brake-induced pulsation. If you can start to hear the vibration
as a low boom noise (in addition to feeling it), but cannot see it, the vehicle likely has a first order
(one pulse per propshaft revolution) driveline vibration. Driveline first order vibrations are high
enough in frequency that most humans can start to hear them at highway speeds, but are too high
to be able to be easily seen. These issues can be caused by driveline imbalance or misalignment.
If the vehicle exhibits this low boom and the booming pulses in-and-out on a regular basis (like a
throbbing), chances are good that the vehicle could have driveline vibration. This type
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > Customer Interest: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial Force Variation (RFV) > Page 3305
of vibration is normally felt more in the "seat of the pants" than the steering wheel.
5. Next, record the Hertz (Hz) reading as displayed by the EVA onto the tire data worksheet found
at the end of this bulletin. This should be done
after a tire break-in period of at least 16 km (10 mi) at 72 km/h (45 mph) or greater, in order to
eliminate any possible tire flat-spotting. This reading confirms what the vehicle vibration frequency
is prior to vehicle service and documents the amount of improvement occurring as the result of the
various steps taken to repair. Completing the Steering Wheel Shake Worksheet below is required.
A copy of the completed worksheet must be saved with the R.O. and a copy included with any
parts returned to the Warranty Parts Center for analysis. A reading of 35 to 50 Hz typically
indicates a first order propshaft vibration. If this is the situation, refer to Corporate Bulletin Number
08-07-30-044D. Generally, a reading between 10 and 20 Hz indicates a tire/wheel vibration and if
this is the reading obtained, continue using this bulletin. If the tire 1st order vibration goes away
and stays away during this evaluation, the cause is likely tire flat-spotting. Tire flat-spotting vibration
may come and go at any speed over 72 km/h (45 mph) during the first 10 minutes of operation, if
vibration continues after 10 minutes of driving at speeds greater than 72 km/h (45 mph), tire
flat-spotting can be ruled out as the cause for vibration.
6. If flat-spotting is the cause, provide the explanation that this has occurred due to the vehicle
being parked for long periods of time and that the
nature of the tire is to take a set. Refer to Corporate Bulletin Number 03-03-10-007E: Information
on Tire/Wheel Characteristics (Vibration, Balance, Shake, Flat Spotting) of GM Original Equipment
Tires.
7. If the road test indicates a shake/vibration exists, check the imbalance of each tire/wheel
assembly on a known, calibrated, off-car dynamic
balancer.Make sure the mounting surface of the wheel and the surface of the balancer are
absolutely clean and free of debris. Be sure to chose the proper cone/collet for the wheel, and
always use the pilot bore for centering. Never center the wheel using the hub-cap bore since it is
not a precision machined surface. If any assembly calls for more than 1/4 ounce on either rim
flange, remove all balance weights and rebalance to as close to zero as possible. If you can see
the vibration (along with feeling it) in the steering wheel (driving straight without your hands on the
wheel), it is very likely to be a tire/wheel first order (one pulse per revolution) disturbance. First
order disturbances can be caused by imbalance as well as non-uniformities in tires, wheels or
hubs. This first order frequency is too low for a human to hear, but if the amplitude is high enough,
it can be seen.
If a vibration or shake still exists after balancing, any out of round conditions, of the wheel, and
force variation conditions of the tire, must be addressed. Equipment such as the Hunter GSP9700
can address both (it is also a wheel balancer).
Tire radial force vibration (RFV) can be defined as the amount of stiffness variation the tire will
produce in one revolution under a constant load. Radial force variation is what the vehicle feels
because the load (weight) of the vehicle is always on the tires. Although free runout of tires (not
under load) is not always a good indicator of a smooth ride, it is critical that total tire/wheel
assembly runout be within specification.
Equipment such as the Hunter GSP9700 loads the tire, similar to on the vehicle, and measures
radial force variation of the tire/wheel assembly. Note that the wheel is affecting the tire's RFV
measurement at this point. To isolate the wheel, its runout must be measured. This can be easily
done on the Hunter, without the need to set up dial indicators. If the wheel meets the runout
specification, the tire's RFV can then be addressed.
After measuring the tire/wheel assembly under load, and the wheel alone, the machine then
calculates (predicts) the radial force variation of the tire. However, because this is a prediction that
can include mounting inaccuracies, and the load wheel is much smaller in diameter than used in
tire production, this type of service equipment should NOT be used to audit new tires. Rather, it
should be used as a service diagnostic tool to minimize radial force variation of the tire/wheel
assembly.
Equipment such as the Hunter GSP9700 does an excellent job of measuring wheel runout, and of
finding the low point of the wheel (for runout) and the high point of the tire (for radial force
variation). This allows the tire to be matched mounted to the wheel for lowest tire/wheel assembly
force variation.
The machine will simplify this process into easy steps. The following assembly radial force variation
numbers should be used as a guide:
When measuring RFV and match mounting tires perform the following steps.
Measuring Wheel Runout and Assembly Radial Force Variation
Important The completed worksheet at the end of this bulletin must be attached to the hard copy of
the repair order.
- Measure radial force variation and radial runout.
- If a road force/balancing machine is used, record the radial force variation (RFV) on the
worksheet at the end of this bulletin. It may be of benefit to have the lowest RFV assembly to the
front left corner. If the machine is not available and the EVA data suggests there is an issue, swap
the tire and wheel assemblies from the front to the back. Re-check on the EVA and if the problem
still exists, test another vehicle to find tires that do not exhibit the same frequency and swap those
tires onto the subject vehicle.
- If a runout/balancing machine is used, record the radial runout of the tire/wheel assemblies on the
worksheet at the end of this bulletin. If one or more of the tire/wheel assemblies are more than.040
in (1.02 mm), match mount the tire to the wheel to get below.040 in (1.02 mm). For sensitive
customers, readings of 0.030 inch (0.76 mm) or less are preferable, it may also be of benefit to
have the lowest runout assembly to the front left corner. If the machine is not available and the
EVA data suggests there is an issue, swap the tire and wheel assemblies from the front to the
back. Re-check on the EVA and if the problem still exists, test another vehicle to find tires that do
not exhibit the same frequency and swap those tires
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
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onto the subject vehicle.
- After match mounting, the tire/wheel assembly must be rebalanced.
If match mounting tires to in-spec wheels produces assembly values higher than these, tire
replacement may be necessary. Replacing tires at lower values will probably mean good tires are
being condemned. Because tires can sometimes become temporarily flat-spotted, which will affect
force variation, it is important that the vehicle be driven at least 16 km (10 mi) prior to measuring.
Tire pressure must also be adjusted to the usage pressure on the vehicle's tire placard prior to
measuring.
Most GM vehicles will tolerate radial force variation up to these levels. However, some vehicles are
more sensitive, and may require lower levels. Also, there are other tire parameters that equipment
such as the Hunter GSP9700 cannot measure that may be a factor. In such cases, TAC should be
contacted for further instructions.
Important
- When mounting a GM wheel to a wheel balancer/force variation machine, always use the wheel's
center pilot hole. This is the primary centering mechanism on all GM wheels; the bolt holes are
secondary. Usually a back cone method to the machine should be used. For added accuracy and
repeatability, a flange plate should be used to clamp the wheel onto the cone and machine. This
system is offered by all balancer manufacturers in GM's dealer program.
- Any type of service equipment that removes tread rubber by grinding, buffing or truing is NOT
recommended, and may void the tire warranty. However, tires may have been ground by the tire
company as part of their tire manufacturing process. This is a legitimate procedure.
Steering Wheel Shake Worksheet
When diagnosing vibration concerns, use the following worksheet in conjunction with the
appropriate Vibration Analysis-Road testing procedure in the Vibration Correction sub-section in SI.
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > Customer Interest: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial Force Variation (RFV) > Page 3307
Refer to the appropriate section of SI for specifications and repair procedures that are related to the
vibration concern.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > Customer Interest: > 05-03-10-003F > Apr > 10 > Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
Wheels: Customer Interest Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
TECHNICAL
Bulletin No.: 05-03-10-003F
Date: April 27, 2010
Subject: Low Tire Pressure, Leaking Cast Aluminum Wheels (Repair with Adhesive Sealant)
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks (Including Saturn) 2010 and Prior
HUMMER H2, H3 2009 and Prior Saab 9-7X with Cast Aluminum Wheels
Supercede: This bulletin is being revised to update the model years and the bulletin reference
information. Please discard Corporate Bulletin Number 05-03-10-003E (Section 03 - Suspension).
Condition
Some customers may comment on a low tire pressure condition.
Diagnosis of the low tire pressure condition indicates an air leak through the cast aluminum wheel.
Cause
Porosity in the cast aluminum wheel may be the cause.
Notice
This bulletin specifically addresses issues related to the wheel casting that may result in an air
leak. For issues related to corrosion of the wheel in service, please refer to Corporate Bulletin
Number 08-03-10-006C - Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light
Illuminated, Aluminum Wheel Bead Seat Corrosion (Clean and Resurface Wheel Bead Seat).
Correction
1. Remove the tire and wheel assembly from the vehicle. Refer to the appropriate service
procedure in SI. 2. Locate the leaking area by inflating the tire to 276 kPa (40 psi) and dipping the
tire/wheel assembly in a water bath, or use a spray bottle with soap
and water to locate the specific leak location.
Important
- If the porosity leak is located in the bead area of the aluminum rim (where the tire meets the rim),
the wheel should be replaced.
- If two or more leaks are located on one wheel, the wheel should be replaced.
3. If air bubbles are observed, mark the location.
- If the leak location is on the tire/rubber area, refer to Corporate Bulletin Number 04-03-10-001F Tire Puncture Repair Procedures for All Cars and Light Duty Trucks.
- If the leak is located on the aluminum wheel area, continue with the next step.
4. Inscribe a mark on the tire at the valve stem in order to indicate the orientation of the tire to the
wheel. 5. Dismount the tire from the wheel. Refer to Tire Mounting and Dismounting. 6. Remove
the tire pressure sensor. Refer to Tire Pressure Sensor removal procedure in SI. 7. Scuff the
INSIDE rim surface at the leak area with #80 grit paper and clean the area with general purpose
cleaner, such as 3M(R) General Purpose
Adhesive Cleaner, P/N 08984, or equivalent.
8. Apply a 3 mm (0.12 in) thick layer of Silicone - Adhesive/Sealant, P/N 12378478 (in Canada, use
88900041), or equivalent, to the leak area. 9. Allow for the adhesive/sealant to dry.
Notice Caution must be used when mounting the tire so as not to damage the sealer. Damaging
the repair area may result in an air leak.
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > Customer Interest: > 05-03-10-003F > Apr > 10 > Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels >
Page 3312
10. Align the inscribed mark on the tire with the valve stem on the wheel. 11. Reinstall the Tire
Pressure Sensor. Refer to Tire Pressure Sensor installation procedure in SI. 12. Mount the tire on
the wheel. Refer to Tire Mounting and Dismounting. 13. Pressurize the tire to 276 kPa (40 psi) and
inspect for leaks. 14. Adjust tire pressure to meet the placard specification. 15. Balance the
tire/wheel assembly. Refer to Tire and Wheel Assembly Balancing - Off-Vehicle. 16. Install the tire
and wheel assembly onto the vehicle. Refer to the appropriate service procedure in SI.
Parts Information
Warranty Information (excluding Saab U.S. Models)
Important The Silicone - Adhesive/Sealant comes in a case quantity of six. ONLY charge warranty
one tube of adhesive/sealant per wheel repair.
For vehicles repaired under warranty, use:
One leak repair per wheel.
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > Customer Interest: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes Flat/Warning Light ON
Wheels: Customer Interest Tires/Wheels - Tire Slowly Goes Flat/Warning Light ON
TECHNICAL
Bulletin No.: 08-03-10-006C
Date: April 27, 2010
Subject: Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated,
Aluminum Wheel Bead Seat Corrosion (Clean and Resurface Wheel Bead Seat)
Models:
2000-2011 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 08-03-10-006B (Section 03 - Suspension).
Condition
Some customers may comment on a tire that slowly loses air pressure over a period of days or
weeks.
Cause
Abrasive elements in the environment may intrude between the tire and wheel at the bead seat.
There is always some relative motion between the tire and wheel (when the vehicle is driven) and
this motion may cause the abrasive particles to wear the wheel and tire materials. As the wear
continues, there may also be intrusion at the tire/wheel interface by corrosive media from the
environment. Eventually a path for air develops and a 'slow' leak may ensue. This corrosion may
appear on the inboard or outboard bead seating surface of the wheel. This corrosion will not be
visible until the tire is dismounted from the wheel.
Notice
This bulletin specifically addresses issues related to wheel bead seat corrosion that may result in
an air leak. For issues related to porosity of the wheel casting that may result in an air leak, please
refer to Corporate Bulletin Number 05-03-10-006F - Low Tire Pressure, Leaking Cast Aluminum
Wheels (Repair with Adhesive Sealant)
Correction
In most cases, this type of air loss can be corrected by following the procedure below.
Important DO NOT replace a wheel for slow air loss unless you have evaluated and/or tried to
repair the wheel with the procedure below.
Notice
The repair is no longer advised or applicable for chromed aluminum wheels.
1. Remove the wheel and tire assembly for diagnosis. Refer to Tire and Wheel Removal and
Installation in SI. 2. After a water dunk tank leak test, if you determine the source of the air leak to
be around the bead seat of the wheel, dismount the tire to examine
the bead seat. Shown below is a typical area of bead seat corrosion.Typical Location of Bead Seat
Corrosion
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > Customer Interest: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes Flat/Warning Light ON >
Page 3317
Important Other forms of slow air leaks are possible. If the body of the tire, valve stem and wheel
flange show no signs of air seepage, refer to Corporate Bulletin Number 05-03-10-003D for
additional information on possible wheel porosity issues.
3. Bead seat corrosion is identified by what appears like blistering of the wheel finish, causing a
rough or uneven surface that is difficult for the tire to
maintain a proper seal on. Below is a close-up photo of bead seat corrosion on an aluminum wheel
that was sufficient to cause slow air loss. Close-Up of Bead Seat Corrosion
4. If corrosion is found on the wheel bead seat, measure the affected area as shown below.
- For vehicles with 32,186 km (20,000 mi) or less, the total allowable combined linear area of
repairable corrosion is 100 mm (4 in) or less. If the total area(s) of corrosion exceed these
dimensions, the wheel should be replaced.
- For vehicles that have exceeded 32,186 km (20,000 mi), the total allowable combined linear area
of repairable corrosion is 200 mm (8 in) or less. If the total area(s) of corrosion exceed these
dimensions, the wheel should be replaced.
5. In order to correct the wheel leak, use a clean-up (fine cut) sanding disc or biscuit to remove the
corrosion and any flaking paint. You should
remove the corrosion back far enough until you reach material that is stable and firmly bonded to
the wheel. Try to taper the edge of any flaking paint as best you can in order to avoid sharp edges
that may increase the chance of a leak reoccurring. The photo below shows an acceptable repaired
surface.
Notice Corrosion that extends up the lip of the wheel, where after the clean-up process it would be
visible with the tire mounted, is only acceptable on the inboard flange. The inboard flange is not
visible with the wheel assembly in the mounted position. If any loose coatings or corrosion extend
to the visible surfaces on the FACE of the wheel, that wheel must be replaced.
Important Remove ONLY the material required to eliminate the corrosion from the bead seating
surface. DO NOT remove excessive amounts of material. ALWAYS keep the sealing surface as
smooth and level as possible.
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > Customer Interest: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes Flat/Warning Light ON >
Page 3318
Acceptably Prepared (Cleaned-Up) Wheel Surface
6. Once the corrosion has been eliminated, you should coat the repaired area with a commercially
available tire sealant such as Patch Brand Bead
Sealant or equivalent. Commercially available bead sealants are black rubber-like coatings that will
permanently fill and seal the resurfaced bead seat. At 21°C (70°F) ambient temperature, this
sealant will set-up sufficiently for tire mounting in about 10 minutes.Coated and Sealed Bead Seat
7. Remount the tire and install the repaired wheel and tire assembly. Refer to Tire and Wheel
Removal and Installation in SI.
Parts Information
Patch Brand Bead Sealer is available from Myers Tires at 1-800-998-9897 or on the web at
www.myerstiresupply.com. The one-quart size can of sealer will repair about 20 wheels.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > Customer Interest: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes Flat/Warning Light ON >
Page 3319
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion
Wheels: All Technical Service Bulletins Wheels - Chrome Wheel Staining/Pitting/Corrosion
INFORMATION
Bulletin No.: 00-03-10-002F
Date: April 21, 2011
Subject: Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum
Wheels
Models:
2012 and Prior GM Cars and Trucks
Supercede: This bulletin is being revised to update model years, suggest additional restorative
products and add additional corrosion information. Please discard Corporate Bulletin Number
00-03-10-002E (Section 03 - Suspension). Important You may give a copy of this bulletin to the
customer.
What is Chemical Staining of Chrome Wheels? Figure 1
Chemical staining in most cases results from acid based cleaners (refer to Figure 1 for an
example). These stains are frequently milky, black, or greenish in appearance. They result from
using cleaning solutions that contain acids on chrome wheels. Soap and water is usually sufficient
to clean wheels.
If the customer insists on using a wheel cleaner they should only use one that specifically states
that it is safe for chromed wheels and does not contain anything in the following list. (Dealers
should also survey any products they use during prep or normal cleaning of stock units for these
chemicals.)
- Ammonium Bifluoride (fluoride source for dissolution of chrome)
- Hydrofluoric Acid (directly dissolves chrome)
- Hydrochloric Acid (directly dissolves chrome)
- Sodium Dodecylbenzenesulfonic Acid
- Sulfamic Acid
- Phosphoric Acid
- Hydroxyacetic Acid
Notice
Many wheel cleaner instructions advise to take care to avoid contact with painted surfaces. Most
customers think of painted surfaces as the fenders, quarter panels and other exterior sheet metal.
Many vehicles have painted brake calipers. Acidic wheel cleaners may craze, crack, or discolor the
paint on the brake calipers. Damage from wheel cleaners is not covered under the vehicle new car
warranty. Soap and water applied with a soft brush is usually all that is required to clean the
calipers.
Whenever any wheel cleaner is used, it must be THOROUGHLY rinsed off of the wheel with clean,
clear water. Special care must be taken to rinse under the hub cap, balance weights, wheel nuts,
lug nut caps, between the wheel cladding and off the back side of the wheel. Wheels returned to
the Warranty Parts Center (WPC) that exhibit damage from wheel cleaners most often have the
damage around and under the wheel weight where the cleaner was incompletely flushed away.
Notice
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion > Page 3325
Do not use cleaning solutions that contain hydrofluoric, oxalic and most other acids on chrome
wheels (or any wheels).
If the customer is unsure of the chemical make-up of a particular wheel cleaner, it should be
avoided.
For wheels showing signs of milky staining from acidic cleaners, refer to Customer Assistance and
Instructions below.
Warranty of Stained Chrome Wheels
Stained wheels are not warrantable. Most acid based cleaners will permanently stain chrome
wheels. Follow-up with dealers has confirmed that such cleaners were used on wheels that were
returned to the Warranty Parts Center (WPC). Any stained wheels received by the WPC will be
charged back to the dealership. To assist the customer, refer to Customer Assistance and
Instructions below.
Pitting or Spotted Appearance of Chrome Wheels Figure 2
A second type or staining or finish disturbance may result from road chemicals, such as calcium
chloride used for dust control of unpaved roads. The staining will look like small pitting (refer to
Figure 2). This staining will usually be on the leading edges of each wheel spoke, but may be
uniformly distributed. If a vehicle must be operated under such conditions, the chrome wheels
should be washed with mild soap and water and thoroughly rinsed as soon as conveniently
possible.
Important Road chemicals, such as calcium chloride used for dust control of unpaved roads, can
also stain chrome wheels. The staining will look like small pitting. This staining will usually be on
the leading edges of each wheel spoke. This is explained by the vehicle traveling in the forward
direction while being splashed by the road chemical. If a vehicle must be operated under such
conditions, the chrome wheels should be washed with mild soap and water and thoroughly rinsed
as soon as conveniently possible.
Warranty of Pitted or Spotted Chrome Wheels
Wheels returned with pitting or spotting as a result of road chemicals may be replaced one time.
Damage resulting from contact with these applied road chemicals is corrosive to the wheels finish
and may cause damage if the wheels are not kept clean.
Important Notify the customer that this is a one time replacement. Please stress to the customer
the vital importance of keeping the wheels clean if they are operating the vehicle in an area that
applies calcium chloride or other dust controlling chemicals! "GM of Canada" dealers require prior
approval by the District Manager - Customer Care and Service Process (DM-CCSP).
"Stardust" Corrosion of Chrome Wheels Figure 3
A third type of finish disturbance results from prolonged exposure to brake dust and resultant
penetration of brake dust through the chrome. As brakes are applied hot particles of brake material
are thrown off and tend to be forced through the leading edge of the wheel spoke windows by
airflow. These
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion > Page 3326
hot particles embed themselves in the chrome layer and create a small pit. If the material is allowed
to sit on the wheel while it is exposed to moisture or salt, it will corrode the wheel beneath the
chrome leaving a pit or small blister in the chrome.
Heavy brake dust build-up should be removed from wheels by using GM Chrome Cleaner and
Polish, P/N 1050173 (in Canada use 10953013). For moderate cleaning, light brake dust build-up
or water spots use GM Swirl Remover Polish, P/N 12377965 (in Canada, use Meguiars
Plast-X(TM) Clear Plastic Cleaner and Polish #G12310C**). After cleaning, the wheel should be
waxed using GM Cleaner Wax, P/N 12377966 (in Canada, use Meguiars Cleaner Wax
#M0616C**), which will help protect the wheel from brake dust and reduce adhesion of any brake
dust that gets on the wheel surface. For general maintenance cleaning, PEEK Metal Polish† may
be used. It will clean and shine the chrome and leave behind a wax coating that may help protect
the finish.
Warranty of Stardust Corroded Chrome Wheels
Wheels returned with pitting or spotting as a result of neglect and brake dust build-up may be
replaced one time.
Important Notify the customer that this is a one time replacement. Please stress to the customer
the vital importance of keeping the wheels clean and free of prolonged exposure to brake dust
build-up. "GM of Canada" dealers require prior approval by the District Manager - Customer Care
and Service Process (DM-CCSP).
Customer Assistance and Instructions
GM has looked for ways customers may improve the appearance of wheels damaged by acidic
cleaners. The following product and procedure has been found to dramatically improve the
appearance of stained wheels. For wheels that have milky stains caused by acidic cleaners try the
following:
Notice
THE 3M CHROME AND METAL POLISH REQUIRED FOR THIS PROCEDURE IS AN
EXTREMELY AGGRESSIVE POLISH/CLEANER. THE WHEELS MUST BE CLEANED BEFORE
APPLICATION TO AVOID SCRATCHING THE WHEEL SURFACE. THIS PRODUCT WILL
REDUCE THE THICKNESS OF THE CHROME PLATING ON THE WHEEL AND IF USED
INCORRECTLY OR EXCESSIVELY MAY REMOVE THE CHROME PLATING ALL TOGETHER,
EXPOSING A LESS BRIGHT AND BRASSY COLORED SUB-LAYER. FOLLOW INSTRUCTIONS
EXACTLY.
1. Wash the wheels with vigorously with soap and water. This step will clean and may reduce
wheel staining. Flood all areas of the wheel with water
to rinse.
2. Dry the wheels completely.
Notice Begin with a small section of the wheel and with light pressure buff off polish and examine
results. ONLY apply and rub with sufficient force and time to remove enough staining that you are
satisfied with the results. Some wheels may be stained to the extent that you may only achieve a
50% improvement while others may be able to be restored to the original lustre. IN ALL CASES,
only apply until the results are satisfactory.
3. Apply 3M Chrome and Metal Polish #39527* with a clean terry cloth towel. As you apply the
polish, the staining will be diminished. 4. When dry, buff off the polish with a clean portion of the
towel. 5. Repeat application of the 3M Chrome and Metal Polish until satisfied with the results. If
continued applications fail to improve the appearance
further discontinue use.
This procedure will improve the appearance of the wheels and may, with repeated applications,
restore the finish dramatically. For wheels that exhibit spotting from road chemicals the above
procedure may marginally improve the condition but will not restore the finish or remove the pitting.
In this type of staining the wheel finish has actually been removed in spots and no manner of
cleaning will restore the finish.
†*We believe this source and their products to be reliable. There may be additional manufacturers
of such products/materials. General Motors does not endorse, indicate any preference for or
assume any responsibility for the products or material from this firm or for any such items that may
be available from other sources.
Parts Information
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion > Page 3327
*This product is currently available from 3M. To obtain information for your local retail location
please call 3M at 1-888-364-3577.
**This product is currently available from Meguiars (Canada). To obtain information for your local
retail location please call Meguiars at 1-800-347-5700 or at www.meguiarscanada.com.
^ This product is currently available from Tri-Peek International. To obtain information for your local
retail location please call Tri-Peek at
1-877-615-4272 or at www.tripeek.com.
Disclaimer
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 99-08-51-007E > Mar > 11 > Wheels/Tires - Refinishing Aluminum
Wheels
Wheels: All Technical Service Bulletins Wheels/Tires - Refinishing Aluminum Wheels
INFORMATION
Bulletin No.: 99-08-51-007E
Date: March 17, 2011
Subject: Refinishing Aluminum Wheels
Models:
2012 and Prior GM Passenger Cars and Trucks
Supercede: This bulletin is being revised to add additional model years. Please discard Corporate
Bulletin Number 99-08-51-007D (Section 08 - Body and Accessories).
This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not
endorse any repairs that involve welding, bending, straightening or re-machining. Only cosmetic
refinishing of the wheel's coatings, using recommended procedures, is allowed.
Evaluating Damage
In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion,
scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be
sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the
wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been
refinished by an outside company must be returned to the same vehicle. The Dealer must record
the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to
Refinisher's Responsibility - Outside Company later in this bulletin.
Aluminum Wheel Refinishing Recommendations
- Chrome-plated aluminum wheels Re-plating these wheels is not recommended.
- Polished aluminum wheels These wheels have a polyester or acrylic clearcoat on them. If the
clearcoat is damaged, refinishing is possible. However, the required refinishing process cannot be
performed in the dealer environment. Refer to Refinisher's Responsibility - Outside Company later
in this bulletin.
- Painted aluminum wheels These wheels are painted using a primer, color coat, and clearcoat
procedure. If the paint is damaged, refinishing is possible. As with polished wheels, all original
coatings must be removed first. Media blasting is recommended. Refer to GM Aluminum
Refinishing Bulletin #53-17-03A for the re-painting of this type of wheel.
- Bright, machined aluminum wheels These wheels have a polyester or acrylic clearcoat on them.
In some cases, the recessed "pocket" areas of the wheel may be painted. Surface refinishing is
possible. The wheel must be totally stripped by media blasting or other suitable means. The wheel
should be resurfaced by using a sanding process rather than a machining process. This allows the
least amount of material to be removed.
Important Do not use any re-machining process that removes aluminum. This could affect the
dimensions and function of the wheel.
Painting is an option to re-clearcoating polished and bright machined aluminum wheels. Paint will
better mask any surface imperfections and is somewhat more durable than clearcoat alone. GM
recommends using Corsican SILVER WAEQ9283 for a fine "aluminum-like" look or Sparkle
SILVER WA9967 for a very bright look. As an option, the body color may also be used. When using
any of the painting options, it is recommended that all four wheels be refinished in order to maintain
color uniformity. Refer to GM Aluminum Refinishing Bulletin #53-17-03A for specific procedures
and product recommendations.
Refinisher's Responsibility - Outside Company
Important Some outside companies are offering wheel refinishing services. Such refinished wheels
will be permanently marked by the refinisher and are warranted by the refinisher. Any process that
re-machines or otherwise re-manufactures the wheel should not be used.
A refinisher's responsibility includes inspecting for cracks using the Zyglo system or the equivalent.
Any cracked wheels must not be refinished. No welding, hammering or reforming of any kind is
allowed. The wheel ID must be recorded and follow the wheel throughout the process in order to
assure that the same wheel is returned. A plastic media blast may be used for clean up of the
wheel. Hand and/or lathe sanding of the machined surface and the wheel window is allowed.
Material removal, though, must be kept to a minimum. Re-machining of the wheel is not allowed.
Paint and/or clear coat must not be present on the following surfaces: the nut chamfers, the wheel
mounting surfaces and the wheel pilot hole. The refinisher must permanently ID stamp the wheel
and warrant the painted/clearcoated surfaces for a minimum of one year or the remainder of the
new vehicle warranty, whichever is
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 99-08-51-007E > Mar > 11 > Wheels/Tires - Refinishing Aluminum
Wheels > Page 3332
longer.
Important Whenever a wheel is refinished, the mounting surface and the wheel nut contact
surfaces must not be painted or clearcoated. Coating these surfaces could affect the wheel nut
torque.
When re-mounting a tire on an aluminum wheel, coated balance weights must be used in order to
reduce the chance of future cosmetic damage.
Disclaimer
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 06-03-10-010A > Jun > 10 > Wheels - Changing
Procedures/Precautions
Wheels: All Technical Service Bulletins Wheels - Changing Procedures/Precautions
INFORMATION
Bulletin No.: 06-03-10-010A
Date: June 09, 2010
Subject: Information on Proper Wheel Changing Procedures and Cautions
Models:
2011 and Prior GM Passenger Cars and Trucks 2010 and Prior HUMMER Models 2005-2009 Saab
9-7X 2005-2009 Saturn Vehicles
Attention:
Complete wheel changing instructions for each vehicle line can be found under Tire and Wheel
Removal and Installation in Service Information (SI). This bulletin is intended to quickly review and
reinforce simple but vital procedures to reduce the possibility of achieving low torque during wheel
installation. Always refer to SI for wheel lug nut torque specifications and complete jacking
instructions for safe wheel changing.
Supercede: This bulletin is being revised to include the 2011 model year and update the available
special tool list. Please discard Corporate Bulletin Number 06-03-10-010 (Section 03 Suspension).
Frequency of Wheel Changes - Marketplace Driven
Just a few years ago, the increasing longevity of tires along with greater resistance to punctures
had greatly reduced the number of times wheels were removed to basically required tire rotation
intervals. Today with the booming business in accessory wheels/special application tires (such as
winter tires), consumers are having tire/wheel assemblies removed - replaced - or installed more
than ever. With this increased activity, it opens up more of a chance for error on the part of the
technician. This bulletin will review a few of the common concerns and mistakes to make yourself
aware of.
Proper Servicing Starts With the Right Tools
The following tools have been made available to assist in proper wheel and tire removal and
installation.
- J 41013 Rotor Resurfacing Kit (or equivalent)
- J 42450-A Wheel Hub Resurfacing Kit (or equivalent)
Corroded Surfaces
One area of concern is corrosion on the mating surfaces of the wheel to the hub on the vehicle.
Excessive corrosion, dirt, rust or debris built up on these surfaces can mimic a properly tightened
wheel in the service stall. Once the vehicle is driven, the debris may loosen, grind up or be washed
away from water splash. This action may result in clearance at the mating surface of the wheel and
an under-torqued condition.
Caution
Before installing a wheel, remove any buildup on the wheel mounting surface and brake drum or
brake disc mounting surface. Installing wheels with poor metal-to-metal contact at the mounting
surfaces can cause wheel nuts to loosen. This may cause a wheel to come off when the vehicle is
moving, possibly resulting in a loss of control or personal injury.
Whenever you remove the tire/wheel assemblies, you must inspect the mating surfaces. If
corrosion is found, you should remove the debris with a die grinder equipped with a fine sanding
pad, wire brush or cleaning disc. Just remove enough material to assure a clean, smooth mating
surface.
The J 41013 (or equivalent) can be used to clean the following surfaces:
- The hub mounting surface
- The brake rotor mounting surface
- The wheel mounting surface
Use the J 42450-A (or equivalent) to clean around the base of the studs and the hub.
Lubricants, Grease and Fluids
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Bulletins > All Technical Service Bulletins for Wheels: > 06-03-10-010A > Jun > 10 > Wheels - Changing
Procedures/Precautions > Page 3337
Some customers may use penetrating oils, grease or other lubricants on wheel studs to aid in
removal or installation. Always use a suitable cleaner/solvent to remove these lubricants prior to
installing the wheel and tire assemblies. Lubricants left on the wheel studs may cause improper
readings of wheel nut torque. Always install wheels to clean, dry wheel studs ONLY.
Notice
Lubricants left on the wheel studs or vertical mounting surfaces between the wheel and the rotor or
drum may cause the wheel to work itself loose after the vehicle is driven. Always install wheels to
clean, dry wheel studs and surfaces ONLY. Beginning with 2011 model year vehicles, put a light
coating of grease, GM P/N 1051344 (in Canada, P/N 9930370), on the inner surface of the wheel
pilot hole to prevent wheel seizure to the axle or bearing hub.
Wheel Stud and Lug Nut Damage
Always inspect the wheel studs and lug nuts for signs of damage from crossthreading or abuse.
You should never have to force wheel nuts down the stud. Lug nuts that are damaged may not
retain properly, yet give the impression of fully tightening. Always inspect and replace any
component suspected of damage.
Tip
Always start wheel nuts by hand! Be certain that all wheel nut threads have been engaged
BEFORE tightening the nut.
Important If the vehicle has directional tread tires, verify the directional arrow on the outboard side
of the tire is pointing in the direction of forward rotation.
Wheel Nut Tightening and Torque
Improper wheel nut tightening can lead to brake pulsation and rotor damage. In order to avoid
additional brake repairs, evenly tighten the wheel nuts to the proper torque specification as shown
for each vehicle in SI. Always observe the proper wheel nut tightening sequence as shown below in
order to avoid trapping the wheel on the wheel stud threads or clamping the wheel slightly off
center resulting in vibration.
The Most Important Service You Provide
While the above information is well known, and wheel removal so common, technicians run the risk
of becoming complacent on this very important
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 06-03-10-010A > Jun > 10 > Wheels - Changing
Procedures/Precautions > Page 3338
service operation. A simple distraction or time constraint that rushes the job may result in personal
injury if the greatest of care is not exercised. Make it a habit to double check your work and to
always side with caution when installing wheels.
Disclaimer
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial Force
Variation (RFV)
Wheels: All Technical Service Bulletins Wheels/Tires - Tire Radial Force Variation (RFV)
INFORMATION
Bulletin No.: 00-03-10-006F
Date: May 04, 2010
Subject: Information on Tire Radial Force Variation (RFV)
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2, H3 2009
and Prior Saab 9-7X 2000-2005 Saturn L Series 2003-2007 Saturn ION
Supercede: This bulletin is being revised to considerably expand the available information on
Radial Force Variation (RFV) and should be reviewed in whole. Please discard Corporate Bulletin
Number 00-03-10-006E (Section 03 - Suspension).
Important
- Before measuring tires on equipment such as the Hunter GSP9700, the vehicle MUST be driven
a minimum of 16 km (10 mi) to ensure removal of any flat-spotting. Refer to Corporate Bulletin
Number 03-03-10-007E - Tire/Wheel Characteristics of GM Original Equipment Tires.
- Equipment such as the Hunter GSP9700 MUST be calibrated prior to measuring tire/wheel
assemblies for each vehicle.
The purpose of this bulletin is to provide guidance to GM dealers when using tire force variation
measurement equipment, such as the Hunter GSP9700. This type of equipment can be a valuable
tool in diagnosing vehicle ride concerns. The most common ride concern involving tire radial force
variation is highway speed shake on smooth roads.
Tire related smooth road highway speed shake can be caused by three conditions: imbalance, out
of round and tire force variation. These three conditions are not necessarily related. All three
conditions must be addressed.
Imbalance is normally addressed first, because it is the simpler of the three to correct. Off-vehicle,
two plane dynamic wheel balancers are readily available and can accurately correct any
imbalance. Balancer calibration and maintenance, proper attachment of the wheel to the balancer,
and proper balance weights, are all factors required for a quality balance. However, a perfectly
balanced tire/wheel assembly can still be "oval shaped" and cause a vibration.
Before balancing, perform the following procedures.
Tire and Wheel Diagnosis
1. Set the tire pressure to the placard values. 2. With the vehicle raised, ensure the wheels are
centered on the hub by loosening all wheel nuts and hand-tightening all nuts first by hand while
shaking the wheel, then torque to specifications using a torque wrench, NOT a torque stick.
3. Visually inspect the tires and the wheels. Inspect for evidence of the following conditions and
correct as necessary:
- Missing balance weights
- Bent rim flange
- Irregular tire wear
- Incomplete bead seating
- Tire irregularities (including pressure settings)
- Mud/ice build-up in wheel
- Stones in the tire tread
- Remove any aftermarket wheels and/or tires and restore vehicle to original condition prior to
diagnosing a smooth road shake condition.
4. Road test the vehicle using the Electronic Vibration Analyzer (EVA) essential tool. Drive for a
sufficient distance on a known, smooth road
surface to duplicate the condition. Determine if the vehicle is sensitive to brake apply. If the brakes
are applied lightly and the pulsation felt in the steering wheel increases, refer to the Brakes section
of the service manual that deals with brake-induced pulsation. If you can start to hear the vibration
as a low boom noise (in addition to feeling it), but cannot see it, the vehicle likely has a first order
(one pulse per propshaft revolution) driveline vibration. Driveline first order vibrations are high
enough in frequency that most humans can start to hear them at highway speeds, but are too high
to be able to be easily seen. These issues can be caused by driveline imbalance or misalignment.
If the vehicle exhibits this low boom and the booming pulses in-and-out on a regular basis (like a
throbbing), chances are good that the vehicle could have driveline vibration. This type
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial Force
Variation (RFV) > Page 3343
of vibration is normally felt more in the "seat of the pants" than the steering wheel.
5. Next, record the Hertz (Hz) reading as displayed by the EVA onto the tire data worksheet found
at the end of this bulletin. This should be done
after a tire break-in period of at least 16 km (10 mi) at 72 km/h (45 mph) or greater, in order to
eliminate any possible tire flat-spotting. This reading confirms what the vehicle vibration frequency
is prior to vehicle service and documents the amount of improvement occurring as the result of the
various steps taken to repair. Completing the Steering Wheel Shake Worksheet below is required.
A copy of the completed worksheet must be saved with the R.O. and a copy included with any
parts returned to the Warranty Parts Center for analysis. A reading of 35 to 50 Hz typically
indicates a first order propshaft vibration. If this is the situation, refer to Corporate Bulletin Number
08-07-30-044D. Generally, a reading between 10 and 20 Hz indicates a tire/wheel vibration and if
this is the reading obtained, continue using this bulletin. If the tire 1st order vibration goes away
and stays away during this evaluation, the cause is likely tire flat-spotting. Tire flat-spotting vibration
may come and go at any speed over 72 km/h (45 mph) during the first 10 minutes of operation, if
vibration continues after 10 minutes of driving at speeds greater than 72 km/h (45 mph), tire
flat-spotting can be ruled out as the cause for vibration.
6. If flat-spotting is the cause, provide the explanation that this has occurred due to the vehicle
being parked for long periods of time and that the
nature of the tire is to take a set. Refer to Corporate Bulletin Number 03-03-10-007E: Information
on Tire/Wheel Characteristics (Vibration, Balance, Shake, Flat Spotting) of GM Original Equipment
Tires.
7. If the road test indicates a shake/vibration exists, check the imbalance of each tire/wheel
assembly on a known, calibrated, off-car dynamic
balancer.Make sure the mounting surface of the wheel and the surface of the balancer are
absolutely clean and free of debris. Be sure to chose the proper cone/collet for the wheel, and
always use the pilot bore for centering. Never center the wheel using the hub-cap bore since it is
not a precision machined surface. If any assembly calls for more than 1/4 ounce on either rim
flange, remove all balance weights and rebalance to as close to zero as possible. If you can see
the vibration (along with feeling it) in the steering wheel (driving straight without your hands on the
wheel), it is very likely to be a tire/wheel first order (one pulse per revolution) disturbance. First
order disturbances can be caused by imbalance as well as non-uniformities in tires, wheels or
hubs. This first order frequency is too low for a human to hear, but if the amplitude is high enough,
it can be seen.
If a vibration or shake still exists after balancing, any out of round conditions, of the wheel, and
force variation conditions of the tire, must be addressed. Equipment such as the Hunter GSP9700
can address both (it is also a wheel balancer).
Tire radial force vibration (RFV) can be defined as the amount of stiffness variation the tire will
produce in one revolution under a constant load. Radial force variation is what the vehicle feels
because the load (weight) of the vehicle is always on the tires. Although free runout of tires (not
under load) is not always a good indicator of a smooth ride, it is critical that total tire/wheel
assembly runout be within specification.
Equipment such as the Hunter GSP9700 loads the tire, similar to on the vehicle, and measures
radial force variation of the tire/wheel assembly. Note that the wheel is affecting the tire's RFV
measurement at this point. To isolate the wheel, its runout must be measured. This can be easily
done on the Hunter, without the need to set up dial indicators. If the wheel meets the runout
specification, the tire's RFV can then be addressed.
After measuring the tire/wheel assembly under load, and the wheel alone, the machine then
calculates (predicts) the radial force variation of the tire. However, because this is a prediction that
can include mounting inaccuracies, and the load wheel is much smaller in diameter than used in
tire production, this type of service equipment should NOT be used to audit new tires. Rather, it
should be used as a service diagnostic tool to minimize radial force variation of the tire/wheel
assembly.
Equipment such as the Hunter GSP9700 does an excellent job of measuring wheel runout, and of
finding the low point of the wheel (for runout) and the high point of the tire (for radial force
variation). This allows the tire to be matched mounted to the wheel for lowest tire/wheel assembly
force variation.
The machine will simplify this process into easy steps. The following assembly radial force variation
numbers should be used as a guide:
When measuring RFV and match mounting tires perform the following steps.
Measuring Wheel Runout and Assembly Radial Force Variation
Important The completed worksheet at the end of this bulletin must be attached to the hard copy of
the repair order.
- Measure radial force variation and radial runout.
- If a road force/balancing machine is used, record the radial force variation (RFV) on the
worksheet at the end of this bulletin. It may be of benefit to have the lowest RFV assembly to the
front left corner. If the machine is not available and the EVA data suggests there is an issue, swap
the tire and wheel assemblies from the front to the back. Re-check on the EVA and if the problem
still exists, test another vehicle to find tires that do not exhibit the same frequency and swap those
tires onto the subject vehicle.
- If a runout/balancing machine is used, record the radial runout of the tire/wheel assemblies on the
worksheet at the end of this bulletin. If one or more of the tire/wheel assemblies are more than.040
in (1.02 mm), match mount the tire to the wheel to get below.040 in (1.02 mm). For sensitive
customers, readings of 0.030 inch (0.76 mm) or less are preferable, it may also be of benefit to
have the lowest runout assembly to the front left corner. If the machine is not available and the
EVA data suggests there is an issue, swap the tire and wheel assemblies from the front to the
back. Re-check on the EVA and if the problem still exists, test another vehicle to find tires that do
not exhibit the same frequency and swap those tires
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial Force
Variation (RFV) > Page 3344
onto the subject vehicle.
- After match mounting, the tire/wheel assembly must be rebalanced.
If match mounting tires to in-spec wheels produces assembly values higher than these, tire
replacement may be necessary. Replacing tires at lower values will probably mean good tires are
being condemned. Because tires can sometimes become temporarily flat-spotted, which will affect
force variation, it is important that the vehicle be driven at least 16 km (10 mi) prior to measuring.
Tire pressure must also be adjusted to the usage pressure on the vehicle's tire placard prior to
measuring.
Most GM vehicles will tolerate radial force variation up to these levels. However, some vehicles are
more sensitive, and may require lower levels. Also, there are other tire parameters that equipment
such as the Hunter GSP9700 cannot measure that may be a factor. In such cases, TAC should be
contacted for further instructions.
Important
- When mounting a GM wheel to a wheel balancer/force variation machine, always use the wheel's
center pilot hole. This is the primary centering mechanism on all GM wheels; the bolt holes are
secondary. Usually a back cone method to the machine should be used. For added accuracy and
repeatability, a flange plate should be used to clamp the wheel onto the cone and machine. This
system is offered by all balancer manufacturers in GM's dealer program.
- Any type of service equipment that removes tread rubber by grinding, buffing or truing is NOT
recommended, and may void the tire warranty. However, tires may have been ground by the tire
company as part of their tire manufacturing process. This is a legitimate procedure.
Steering Wheel Shake Worksheet
When diagnosing vibration concerns, use the following worksheet in conjunction with the
appropriate Vibration Analysis-Road testing procedure in the Vibration Correction sub-section in SI.
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial Force
Variation (RFV) > Page 3345
Refer to the appropriate section of SI for specifications and repair procedures that are related to the
vibration concern.
Disclaimer
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 05-03-10-003F > Apr > 10 > Tires/Wheels - Low Tire/Leaking Cast
Aluminum Wheels
Wheels: All Technical Service Bulletins Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
TECHNICAL
Bulletin No.: 05-03-10-003F
Date: April 27, 2010
Subject: Low Tire Pressure, Leaking Cast Aluminum Wheels (Repair with Adhesive Sealant)
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks (Including Saturn) 2010 and Prior
HUMMER H2, H3 2009 and Prior Saab 9-7X with Cast Aluminum Wheels
Supercede: This bulletin is being revised to update the model years and the bulletin reference
information. Please discard Corporate Bulletin Number 05-03-10-003E (Section 03 - Suspension).
Condition
Some customers may comment on a low tire pressure condition.
Diagnosis of the low tire pressure condition indicates an air leak through the cast aluminum wheel.
Cause
Porosity in the cast aluminum wheel may be the cause.
Notice
This bulletin specifically addresses issues related to the wheel casting that may result in an air
leak. For issues related to corrosion of the wheel in service, please refer to Corporate Bulletin
Number 08-03-10-006C - Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light
Illuminated, Aluminum Wheel Bead Seat Corrosion (Clean and Resurface Wheel Bead Seat).
Correction
1. Remove the tire and wheel assembly from the vehicle. Refer to the appropriate service
procedure in SI. 2. Locate the leaking area by inflating the tire to 276 kPa (40 psi) and dipping the
tire/wheel assembly in a water bath, or use a spray bottle with soap
and water to locate the specific leak location.
Important
- If the porosity leak is located in the bead area of the aluminum rim (where the tire meets the rim),
the wheel should be replaced.
- If two or more leaks are located on one wheel, the wheel should be replaced.
3. If air bubbles are observed, mark the location.
- If the leak location is on the tire/rubber area, refer to Corporate Bulletin Number 04-03-10-001F Tire Puncture Repair Procedures for All Cars and Light Duty Trucks.
- If the leak is located on the aluminum wheel area, continue with the next step.
4. Inscribe a mark on the tire at the valve stem in order to indicate the orientation of the tire to the
wheel. 5. Dismount the tire from the wheel. Refer to Tire Mounting and Dismounting. 6. Remove
the tire pressure sensor. Refer to Tire Pressure Sensor removal procedure in SI. 7. Scuff the
INSIDE rim surface at the leak area with #80 grit paper and clean the area with general purpose
cleaner, such as 3M(R) General Purpose
Adhesive Cleaner, P/N 08984, or equivalent.
8. Apply a 3 mm (0.12 in) thick layer of Silicone - Adhesive/Sealant, P/N 12378478 (in Canada, use
88900041), or equivalent, to the leak area. 9. Allow for the adhesive/sealant to dry.
Notice Caution must be used when mounting the tire so as not to damage the sealer. Damaging
the repair area may result in an air leak.
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 05-03-10-003F > Apr > 10 > Tires/Wheels - Low Tire/Leaking Cast
Aluminum Wheels > Page 3350
10. Align the inscribed mark on the tire with the valve stem on the wheel. 11. Reinstall the Tire
Pressure Sensor. Refer to Tire Pressure Sensor installation procedure in SI. 12. Mount the tire on
the wheel. Refer to Tire Mounting and Dismounting. 13. Pressurize the tire to 276 kPa (40 psi) and
inspect for leaks. 14. Adjust tire pressure to meet the placard specification. 15. Balance the
tire/wheel assembly. Refer to Tire and Wheel Assembly Balancing - Off-Vehicle. 16. Install the tire
and wheel assembly onto the vehicle. Refer to the appropriate service procedure in SI.
Parts Information
Warranty Information (excluding Saab U.S. Models)
Important The Silicone - Adhesive/Sealant comes in a case quantity of six. ONLY charge warranty
one tube of adhesive/sealant per wheel repair.
For vehicles repaired under warranty, use:
One leak repair per wheel.
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Disclaimer
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes
Flat/Warning Light ON
Wheels: All Technical Service Bulletins Tires/Wheels - Tire Slowly Goes Flat/Warning Light ON
TECHNICAL
Bulletin No.: 08-03-10-006C
Date: April 27, 2010
Subject: Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated,
Aluminum Wheel Bead Seat Corrosion (Clean and Resurface Wheel Bead Seat)
Models:
2000-2011 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 08-03-10-006B (Section 03 - Suspension).
Condition
Some customers may comment on a tire that slowly loses air pressure over a period of days or
weeks.
Cause
Abrasive elements in the environment may intrude between the tire and wheel at the bead seat.
There is always some relative motion between the tire and wheel (when the vehicle is driven) and
this motion may cause the abrasive particles to wear the wheel and tire materials. As the wear
continues, there may also be intrusion at the tire/wheel interface by corrosive media from the
environment. Eventually a path for air develops and a 'slow' leak may ensue. This corrosion may
appear on the inboard or outboard bead seating surface of the wheel. This corrosion will not be
visible until the tire is dismounted from the wheel.
Notice
This bulletin specifically addresses issues related to wheel bead seat corrosion that may result in
an air leak. For issues related to porosity of the wheel casting that may result in an air leak, please
refer to Corporate Bulletin Number 05-03-10-006F - Low Tire Pressure, Leaking Cast Aluminum
Wheels (Repair with Adhesive Sealant)
Correction
In most cases, this type of air loss can be corrected by following the procedure below.
Important DO NOT replace a wheel for slow air loss unless you have evaluated and/or tried to
repair the wheel with the procedure below.
Notice
The repair is no longer advised or applicable for chromed aluminum wheels.
1. Remove the wheel and tire assembly for diagnosis. Refer to Tire and Wheel Removal and
Installation in SI. 2. After a water dunk tank leak test, if you determine the source of the air leak to
be around the bead seat of the wheel, dismount the tire to examine
the bead seat. Shown below is a typical area of bead seat corrosion.Typical Location of Bead Seat
Corrosion
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes
Flat/Warning Light ON > Page 3355
Important Other forms of slow air leaks are possible. If the body of the tire, valve stem and wheel
flange show no signs of air seepage, refer to Corporate Bulletin Number 05-03-10-003D for
additional information on possible wheel porosity issues.
3. Bead seat corrosion is identified by what appears like blistering of the wheel finish, causing a
rough or uneven surface that is difficult for the tire to
maintain a proper seal on. Below is a close-up photo of bead seat corrosion on an aluminum wheel
that was sufficient to cause slow air loss. Close-Up of Bead Seat Corrosion
4. If corrosion is found on the wheel bead seat, measure the affected area as shown below.
- For vehicles with 32,186 km (20,000 mi) or less, the total allowable combined linear area of
repairable corrosion is 100 mm (4 in) or less. If the total area(s) of corrosion exceed these
dimensions, the wheel should be replaced.
- For vehicles that have exceeded 32,186 km (20,000 mi), the total allowable combined linear area
of repairable corrosion is 200 mm (8 in) or less. If the total area(s) of corrosion exceed these
dimensions, the wheel should be replaced.
5. In order to correct the wheel leak, use a clean-up (fine cut) sanding disc or biscuit to remove the
corrosion and any flaking paint. You should
remove the corrosion back far enough until you reach material that is stable and firmly bonded to
the wheel. Try to taper the edge of any flaking paint as best you can in order to avoid sharp edges
that may increase the chance of a leak reoccurring. The photo below shows an acceptable repaired
surface.
Notice Corrosion that extends up the lip of the wheel, where after the clean-up process it would be
visible with the tire mounted, is only acceptable on the inboard flange. The inboard flange is not
visible with the wheel assembly in the mounted position. If any loose coatings or corrosion extend
to the visible surfaces on the FACE of the wheel, that wheel must be replaced.
Important Remove ONLY the material required to eliminate the corrosion from the bead seating
surface. DO NOT remove excessive amounts of material. ALWAYS keep the sealing surface as
smooth and level as possible.
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes
Flat/Warning Light ON > Page 3356
Acceptably Prepared (Cleaned-Up) Wheel Surface
6. Once the corrosion has been eliminated, you should coat the repaired area with a commercially
available tire sealant such as Patch Brand Bead
Sealant or equivalent. Commercially available bead sealants are black rubber-like coatings that will
permanently fill and seal the resurfaced bead seat. At 21°C (70°F) ambient temperature, this
sealant will set-up sufficiently for tire mounting in about 10 minutes.Coated and Sealed Bead Seat
7. Remount the tire and install the repaired wheel and tire assembly. Refer to Tire and Wheel
Removal and Installation in SI.
Parts Information
Patch Brand Bead Sealer is available from Myers Tires at 1-800-998-9897 or on the web at
www.myerstiresupply.com. The one-quart size can of sealer will repair about 20 wheels.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes
Flat/Warning Light ON > Page 3357
Disclaimer
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wheels: > 04-03-10-012B > Feb > 08 > Wheels - Chrome Wheel Brake Dust
Accumulation/Pitting
Wheels: All Technical Service Bulletins Wheels - Chrome Wheel Brake Dust Accumulation/Pitting
Bulletin No.: 04-03-10-012B
Date: February 01, 2008
INFORMATION
Subject: Pitting and Brake Dust on Chrome wheels
Models: 2008 and Prior GM Passenger Cars and Trucks (including Saturn) 2008 and Prior
HUMMER H2, H3 2005-2008 Saab 9-7X
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
04-03-10-012A (Section 03 - Suspension).
Analysis of Returned Wheels
Chrome wheels returned under the New Vehicle Limited Warranty for pitting concerns have
recently been evaluated. This condition is usually most severe in the vent (or window) area of the
front wheels. This "pitting" may actually be brake dust that has been allowed to accumulate on the
wheel. The longer this accumulation builds up, the more difficult it is to remove.
Cleaning the Wheels
In all cases, the returned wheels could be cleaned to their original condition using GM Vehicle Care
Cleaner Wax, P/N 12377966 (in Canada, P/N 10952905). When using this product, you should
confine your treatment to the areas of the wheel that show evidence of the brake dust build-up.
This product is only for use on chromed steel or chromed aluminum wheels.
Parts Information
Warranty Information
Wheel replacement for this condition is NOT applicable under the terms of the New Vehicle Limited
Warranty.
Disclaimer
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Wheels: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion
Wheels: All Technical Service Bulletins Wheels - Chrome Wheel Staining/Pitting/Corrosion
INFORMATION
Bulletin No.: 00-03-10-002F
Date: April 21, 2011
Subject: Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum
Wheels
Models:
2012 and Prior GM Cars and Trucks
Supercede: This bulletin is being revised to update model years, suggest additional restorative
products and add additional corrosion information. Please discard Corporate Bulletin Number
00-03-10-002E (Section 03 - Suspension). Important You may give a copy of this bulletin to the
customer.
What is Chemical Staining of Chrome Wheels? Figure 1
Chemical staining in most cases results from acid based cleaners (refer to Figure 1 for an
example). These stains are frequently milky, black, or greenish in appearance. They result from
using cleaning solutions that contain acids on chrome wheels. Soap and water is usually sufficient
to clean wheels.
If the customer insists on using a wheel cleaner they should only use one that specifically states
that it is safe for chromed wheels and does not contain anything in the following list. (Dealers
should also survey any products they use during prep or normal cleaning of stock units for these
chemicals.)
- Ammonium Bifluoride (fluoride source for dissolution of chrome)
- Hydrofluoric Acid (directly dissolves chrome)
- Hydrochloric Acid (directly dissolves chrome)
- Sodium Dodecylbenzenesulfonic Acid
- Sulfamic Acid
- Phosphoric Acid
- Hydroxyacetic Acid
Notice
Many wheel cleaner instructions advise to take care to avoid contact with painted surfaces. Most
customers think of painted surfaces as the fenders, quarter panels and other exterior sheet metal.
Many vehicles have painted brake calipers. Acidic wheel cleaners may craze, crack, or discolor the
paint on the brake calipers. Damage from wheel cleaners is not covered under the vehicle new car
warranty. Soap and water applied with a soft brush is usually all that is required to clean the
calipers.
Whenever any wheel cleaner is used, it must be THOROUGHLY rinsed off of the wheel with clean,
clear water. Special care must be taken to rinse under the hub cap, balance weights, wheel nuts,
lug nut caps, between the wheel cladding and off the back side of the wheel. Wheels returned to
the Warranty Parts Center (WPC) that exhibit damage from wheel cleaners most often have the
damage around and under the wheel weight where the cleaner was incompletely flushed away.
Notice
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Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Wheels: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion > Page 3367
Do not use cleaning solutions that contain hydrofluoric, oxalic and most other acids on chrome
wheels (or any wheels).
If the customer is unsure of the chemical make-up of a particular wheel cleaner, it should be
avoided.
For wheels showing signs of milky staining from acidic cleaners, refer to Customer Assistance and
Instructions below.
Warranty of Stained Chrome Wheels
Stained wheels are not warrantable. Most acid based cleaners will permanently stain chrome
wheels. Follow-up with dealers has confirmed that such cleaners were used on wheels that were
returned to the Warranty Parts Center (WPC). Any stained wheels received by the WPC will be
charged back to the dealership. To assist the customer, refer to Customer Assistance and
Instructions below.
Pitting or Spotted Appearance of Chrome Wheels Figure 2
A second type or staining or finish disturbance may result from road chemicals, such as calcium
chloride used for dust control of unpaved roads. The staining will look like small pitting (refer to
Figure 2). This staining will usually be on the leading edges of each wheel spoke, but may be
uniformly distributed. If a vehicle must be operated under such conditions, the chrome wheels
should be washed with mild soap and water and thoroughly rinsed as soon as conveniently
possible.
Important Road chemicals, such as calcium chloride used for dust control of unpaved roads, can
also stain chrome wheels. The staining will look like small pitting. This staining will usually be on
the leading edges of each wheel spoke. This is explained by the vehicle traveling in the forward
direction while being splashed by the road chemical. If a vehicle must be operated under such
conditions, the chrome wheels should be washed with mild soap and water and thoroughly rinsed
as soon as conveniently possible.
Warranty of Pitted or Spotted Chrome Wheels
Wheels returned with pitting or spotting as a result of road chemicals may be replaced one time.
Damage resulting from contact with these applied road chemicals is corrosive to the wheels finish
and may cause damage if the wheels are not kept clean.
Important Notify the customer that this is a one time replacement. Please stress to the customer
the vital importance of keeping the wheels clean if they are operating the vehicle in an area that
applies calcium chloride or other dust controlling chemicals! "GM of Canada" dealers require prior
approval by the District Manager - Customer Care and Service Process (DM-CCSP).
"Stardust" Corrosion of Chrome Wheels Figure 3
A third type of finish disturbance results from prolonged exposure to brake dust and resultant
penetration of brake dust through the chrome. As brakes are applied hot particles of brake material
are thrown off and tend to be forced through the leading edge of the wheel spoke windows by
airflow. These
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Wheels: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion > Page 3368
hot particles embed themselves in the chrome layer and create a small pit. If the material is allowed
to sit on the wheel while it is exposed to moisture or salt, it will corrode the wheel beneath the
chrome leaving a pit or small blister in the chrome.
Heavy brake dust build-up should be removed from wheels by using GM Chrome Cleaner and
Polish, P/N 1050173 (in Canada use 10953013). For moderate cleaning, light brake dust build-up
or water spots use GM Swirl Remover Polish, P/N 12377965 (in Canada, use Meguiars
Plast-X(TM) Clear Plastic Cleaner and Polish #G12310C**). After cleaning, the wheel should be
waxed using GM Cleaner Wax, P/N 12377966 (in Canada, use Meguiars Cleaner Wax
#M0616C**), which will help protect the wheel from brake dust and reduce adhesion of any brake
dust that gets on the wheel surface. For general maintenance cleaning, PEEK Metal Polish† may
be used. It will clean and shine the chrome and leave behind a wax coating that may help protect
the finish.
Warranty of Stardust Corroded Chrome Wheels
Wheels returned with pitting or spotting as a result of neglect and brake dust build-up may be
replaced one time.
Important Notify the customer that this is a one time replacement. Please stress to the customer
the vital importance of keeping the wheels clean and free of prolonged exposure to brake dust
build-up. "GM of Canada" dealers require prior approval by the District Manager - Customer Care
and Service Process (DM-CCSP).
Customer Assistance and Instructions
GM has looked for ways customers may improve the appearance of wheels damaged by acidic
cleaners. The following product and procedure has been found to dramatically improve the
appearance of stained wheels. For wheels that have milky stains caused by acidic cleaners try the
following:
Notice
THE 3M CHROME AND METAL POLISH REQUIRED FOR THIS PROCEDURE IS AN
EXTREMELY AGGRESSIVE POLISH/CLEANER. THE WHEELS MUST BE CLEANED BEFORE
APPLICATION TO AVOID SCRATCHING THE WHEEL SURFACE. THIS PRODUCT WILL
REDUCE THE THICKNESS OF THE CHROME PLATING ON THE WHEEL AND IF USED
INCORRECTLY OR EXCESSIVELY MAY REMOVE THE CHROME PLATING ALL TOGETHER,
EXPOSING A LESS BRIGHT AND BRASSY COLORED SUB-LAYER. FOLLOW INSTRUCTIONS
EXACTLY.
1. Wash the wheels with vigorously with soap and water. This step will clean and may reduce
wheel staining. Flood all areas of the wheel with water
to rinse.
2. Dry the wheels completely.
Notice Begin with a small section of the wheel and with light pressure buff off polish and examine
results. ONLY apply and rub with sufficient force and time to remove enough staining that you are
satisfied with the results. Some wheels may be stained to the extent that you may only achieve a
50% improvement while others may be able to be restored to the original lustre. IN ALL CASES,
only apply until the results are satisfactory.
3. Apply 3M Chrome and Metal Polish #39527* with a clean terry cloth towel. As you apply the
polish, the staining will be diminished. 4. When dry, buff off the polish with a clean portion of the
towel. 5. Repeat application of the 3M Chrome and Metal Polish until satisfied with the results. If
continued applications fail to improve the appearance
further discontinue use.
This procedure will improve the appearance of the wheels and may, with repeated applications,
restore the finish dramatically. For wheels that exhibit spotting from road chemicals the above
procedure may marginally improve the condition but will not restore the finish or remove the pitting.
In this type of staining the wheel finish has actually been removed in spots and no manner of
cleaning will restore the finish.
†*We believe this source and their products to be reliable. There may be additional manufacturers
of such products/materials. General Motors does not endorse, indicate any preference for or
assume any responsibility for the products or material from this firm or for any such items that may
be available from other sources.
Parts Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Wheels: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion > Page 3369
*This product is currently available from 3M. To obtain information for your local retail location
please call 3M at 1-888-364-3577.
**This product is currently available from Meguiars (Canada). To obtain information for your local
retail location please call Meguiars at 1-800-347-5700 or at www.meguiarscanada.com.
^ This product is currently available from Tri-Peek International. To obtain information for your local
retail location please call Tri-Peek at
1-877-615-4272 or at www.tripeek.com.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Wheels: > 99-08-51-007E > Mar > 11 > Wheels/Tires - Refinishing Aluminum
Wheels
Wheels: All Technical Service Bulletins Wheels/Tires - Refinishing Aluminum Wheels
INFORMATION
Bulletin No.: 99-08-51-007E
Date: March 17, 2011
Subject: Refinishing Aluminum Wheels
Models:
2012 and Prior GM Passenger Cars and Trucks
Supercede: This bulletin is being revised to add additional model years. Please discard Corporate
Bulletin Number 99-08-51-007D (Section 08 - Body and Accessories).
This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not
endorse any repairs that involve welding, bending, straightening or re-machining. Only cosmetic
refinishing of the wheel's coatings, using recommended procedures, is allowed.
Evaluating Damage
In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion,
scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be
sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the
wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been
refinished by an outside company must be returned to the same vehicle. The Dealer must record
the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to
Refinisher's Responsibility - Outside Company later in this bulletin.
Aluminum Wheel Refinishing Recommendations
- Chrome-plated aluminum wheels Re-plating these wheels is not recommended.
- Polished aluminum wheels These wheels have a polyester or acrylic clearcoat on them. If the
clearcoat is damaged, refinishing is possible. However, the required refinishing process cannot be
performed in the dealer environment. Refer to Refinisher's Responsibility - Outside Company later
in this bulletin.
- Painted aluminum wheels These wheels are painted using a primer, color coat, and clearcoat
procedure. If the paint is damaged, refinishing is possible. As with polished wheels, all original
coatings must be removed first. Media blasting is recommended. Refer to GM Aluminum
Refinishing Bulletin #53-17-03A for the re-painting of this type of wheel.
- Bright, machined aluminum wheels These wheels have a polyester or acrylic clearcoat on them.
In some cases, the recessed "pocket" areas of the wheel may be painted. Surface refinishing is
possible. The wheel must be totally stripped by media blasting or other suitable means. The wheel
should be resurfaced by using a sanding process rather than a machining process. This allows the
least amount of material to be removed.
Important Do not use any re-machining process that removes aluminum. This could affect the
dimensions and function of the wheel.
Painting is an option to re-clearcoating polished and bright machined aluminum wheels. Paint will
better mask any surface imperfections and is somewhat more durable than clearcoat alone. GM
recommends using Corsican SILVER WAEQ9283 for a fine "aluminum-like" look or Sparkle
SILVER WA9967 for a very bright look. As an option, the body color may also be used. When using
any of the painting options, it is recommended that all four wheels be refinished in order to maintain
color uniformity. Refer to GM Aluminum Refinishing Bulletin #53-17-03A for specific procedures
and product recommendations.
Refinisher's Responsibility - Outside Company
Important Some outside companies are offering wheel refinishing services. Such refinished wheels
will be permanently marked by the refinisher and are warranted by the refinisher. Any process that
re-machines or otherwise re-manufactures the wheel should not be used.
A refinisher's responsibility includes inspecting for cracks using the Zyglo system or the equivalent.
Any cracked wheels must not be refinished. No welding, hammering or reforming of any kind is
allowed. The wheel ID must be recorded and follow the wheel throughout the process in order to
assure that the same wheel is returned. A plastic media blast may be used for clean up of the
wheel. Hand and/or lathe sanding of the machined surface and the wheel window is allowed.
Material removal, though, must be kept to a minimum. Re-machining of the wheel is not allowed.
Paint and/or clear coat must not be present on the following surfaces: the nut chamfers, the wheel
mounting surfaces and the wheel pilot hole. The refinisher must permanently ID stamp the wheel
and warrant the painted/clearcoated surfaces for a minimum of one year or the remainder of the
new vehicle warranty, whichever is
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Wheels: > 99-08-51-007E > Mar > 11 > Wheels/Tires - Refinishing Aluminum
Wheels > Page 3374
longer.
Important Whenever a wheel is refinished, the mounting surface and the wheel nut contact
surfaces must not be painted or clearcoated. Coating these surfaces could affect the wheel nut
torque.
When re-mounting a tire on an aluminum wheel, coated balance weights must be used in order to
reduce the chance of future cosmetic damage.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Wheels: > 06-03-10-010A > Jun > 10 > Wheels - Changing
Procedures/Precautions
Wheels: All Technical Service Bulletins Wheels - Changing Procedures/Precautions
INFORMATION
Bulletin No.: 06-03-10-010A
Date: June 09, 2010
Subject: Information on Proper Wheel Changing Procedures and Cautions
Models:
2011 and Prior GM Passenger Cars and Trucks 2010 and Prior HUMMER Models 2005-2009 Saab
9-7X 2005-2009 Saturn Vehicles
Attention:
Complete wheel changing instructions for each vehicle line can be found under Tire and Wheel
Removal and Installation in Service Information (SI). This bulletin is intended to quickly review and
reinforce simple but vital procedures to reduce the possibility of achieving low torque during wheel
installation. Always refer to SI for wheel lug nut torque specifications and complete jacking
instructions for safe wheel changing.
Supercede: This bulletin is being revised to include the 2011 model year and update the available
special tool list. Please discard Corporate Bulletin Number 06-03-10-010 (Section 03 Suspension).
Frequency of Wheel Changes - Marketplace Driven
Just a few years ago, the increasing longevity of tires along with greater resistance to punctures
had greatly reduced the number of times wheels were removed to basically required tire rotation
intervals. Today with the booming business in accessory wheels/special application tires (such as
winter tires), consumers are having tire/wheel assemblies removed - replaced - or installed more
than ever. With this increased activity, it opens up more of a chance for error on the part of the
technician. This bulletin will review a few of the common concerns and mistakes to make yourself
aware of.
Proper Servicing Starts With the Right Tools
The following tools have been made available to assist in proper wheel and tire removal and
installation.
- J 41013 Rotor Resurfacing Kit (or equivalent)
- J 42450-A Wheel Hub Resurfacing Kit (or equivalent)
Corroded Surfaces
One area of concern is corrosion on the mating surfaces of the wheel to the hub on the vehicle.
Excessive corrosion, dirt, rust or debris built up on these surfaces can mimic a properly tightened
wheel in the service stall. Once the vehicle is driven, the debris may loosen, grind up or be washed
away from water splash. This action may result in clearance at the mating surface of the wheel and
an under-torqued condition.
Caution
Before installing a wheel, remove any buildup on the wheel mounting surface and brake drum or
brake disc mounting surface. Installing wheels with poor metal-to-metal contact at the mounting
surfaces can cause wheel nuts to loosen. This may cause a wheel to come off when the vehicle is
moving, possibly resulting in a loss of control or personal injury.
Whenever you remove the tire/wheel assemblies, you must inspect the mating surfaces. If
corrosion is found, you should remove the debris with a die grinder equipped with a fine sanding
pad, wire brush or cleaning disc. Just remove enough material to assure a clean, smooth mating
surface.
The J 41013 (or equivalent) can be used to clean the following surfaces:
- The hub mounting surface
- The brake rotor mounting surface
- The wheel mounting surface
Use the J 42450-A (or equivalent) to clean around the base of the studs and the hub.
Lubricants, Grease and Fluids
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Wheels: > 06-03-10-010A > Jun > 10 > Wheels - Changing
Procedures/Precautions > Page 3379
Some customers may use penetrating oils, grease or other lubricants on wheel studs to aid in
removal or installation. Always use a suitable cleaner/solvent to remove these lubricants prior to
installing the wheel and tire assemblies. Lubricants left on the wheel studs may cause improper
readings of wheel nut torque. Always install wheels to clean, dry wheel studs ONLY.
Notice
Lubricants left on the wheel studs or vertical mounting surfaces between the wheel and the rotor or
drum may cause the wheel to work itself loose after the vehicle is driven. Always install wheels to
clean, dry wheel studs and surfaces ONLY. Beginning with 2011 model year vehicles, put a light
coating of grease, GM P/N 1051344 (in Canada, P/N 9930370), on the inner surface of the wheel
pilot hole to prevent wheel seizure to the axle or bearing hub.
Wheel Stud and Lug Nut Damage
Always inspect the wheel studs and lug nuts for signs of damage from crossthreading or abuse.
You should never have to force wheel nuts down the stud. Lug nuts that are damaged may not
retain properly, yet give the impression of fully tightening. Always inspect and replace any
component suspected of damage.
Tip
Always start wheel nuts by hand! Be certain that all wheel nut threads have been engaged
BEFORE tightening the nut.
Important If the vehicle has directional tread tires, verify the directional arrow on the outboard side
of the tire is pointing in the direction of forward rotation.
Wheel Nut Tightening and Torque
Improper wheel nut tightening can lead to brake pulsation and rotor damage. In order to avoid
additional brake repairs, evenly tighten the wheel nuts to the proper torque specification as shown
for each vehicle in SI. Always observe the proper wheel nut tightening sequence as shown below in
order to avoid trapping the wheel on the wheel stud threads or clamping the wheel slightly off
center resulting in vibration.
The Most Important Service You Provide
While the above information is well known, and wheel removal so common, technicians run the risk
of becoming complacent on this very important
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Wheels: > 06-03-10-010A > Jun > 10 > Wheels - Changing
Procedures/Precautions > Page 3380
service operation. A simple distraction or time constraint that rushes the job may result in personal
injury if the greatest of care is not exercised. Make it a habit to double check your work and to
always side with caution when installing wheels.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Wheels: > 04-03-10-012B > Feb > 08 > Wheels - Chrome Wheel Brake Dust
Accumulation/Pitting
Wheels: All Technical Service Bulletins Wheels - Chrome Wheel Brake Dust Accumulation/Pitting
Bulletin No.: 04-03-10-012B
Date: February 01, 2008
INFORMATION
Subject: Pitting and Brake Dust on Chrome wheels
Models: 2008 and Prior GM Passenger Cars and Trucks (including Saturn) 2008 and Prior
HUMMER H2, H3 2005-2008 Saab 9-7X
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
04-03-10-012A (Section 03 - Suspension).
Analysis of Returned Wheels
Chrome wheels returned under the New Vehicle Limited Warranty for pitting concerns have
recently been evaluated. This condition is usually most severe in the vent (or window) area of the
front wheels. This "pitting" may actually be brake dust that has been allowed to accumulate on the
wheel. The longer this accumulation builds up, the more difficult it is to remove.
Cleaning the Wheels
In all cases, the returned wheels could be cleaned to their original condition using GM Vehicle Care
Cleaner Wax, P/N 12377966 (in Canada, P/N 10952905). When using this product, you should
confine your treatment to the areas of the wheel that show evidence of the brake dust build-up.
This product is only for use on chromed steel or chromed aluminum wheels.
Parts Information
Warranty Information
Wheel replacement for this condition is NOT applicable under the terms of the New Vehicle Limited
Warranty.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Description and
Operation > Replacement Wheels Description
Wheels: Description and Operation Replacement Wheels Description
Replacement Wheels Description
Replace the wheel if any of the following conditions exist:
* The wheel exhibits excessive runout
* The wheel is bent
* The wheel is cracked
* The wheel is severely rusted
* The wheel is severely corroded
Important: Air leaks caused by porosity on aluminum wheels are repairable.
* The wheel leaks air
Caution: If you are replacing the wheel(s), the wheel stud(s), the wheel nut(s) or the wheel bolt(s),
install only new Saturn original equipment parts. Installation of used parts or non-Saturn original
equipment parts may cause the wheel to loosen, loss of tire air pressure, poor vehicle handling and
loss of vehicle control resulting in personal injury.
Notice: The use of non-Saturn original equipment wheels may cause:
* Damage to the wheel bearing, the wheel fasteners and the wheel
* Tire damage caused by the modified clearance to the adjacent vehicle components
* Adverse vehicle steering stability caused by the modified scrub radius
* Damage to the vehicle caused by the modified ground clearance
* Speedometer and odometer inaccuracy
Replace the wheel, the wheel studs and the wheel/nuts, or the wheel bolts if applicable, if any of
the following conditions exist:
* The wheel has elongated bolt holes.
* The wheel/nuts, or bolts if applicable, loosen repeatedly.
Steel wheel identification is stamped into the wheel near the valve stem.
Aluminum wheel identification is cast into the inboard side of the wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheels > Component Information > Description and
Operation > Replacement Wheels Description > Page 3387
Wheels: Description and Operation Steel Wheel Repair Description
Steel Wheel Repair Description
Notice: Do not heat wheels in an attempt to soften them for straightening or repair damage from
striking curbs, etc. Do not weld wheels. The alloy used in these wheels is heat-treated and
uncontrolled heating from welding affects the properties of the material.
Notice: The use of tubes in tubeless tires is not a recommended repair due to the fact that speed
ratings are greatly reduced.
If leaks are found in a steel wheel, replace the wheel with a wheel of original equipment quality.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Bearing > Component Information > Testing and
Inspection
Wheel Bearing: Testing and Inspection
Wheel Bearings Diagnosis
Step 1 - Step 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Bearing > Component Information > Service and
Repair > Front Suspension
Wheel Bearing: Service and Repair Front Suspension
Wheel Bearing/Hub Replacement - Front
Removal Procedure
1. Remove the front brake rotor.
2. Disconnect the wheel speed sensor electrical connector, if equipped.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Bearing > Component Information > Service and
Repair > Front Suspension > Page 3393
3. Remove the wheel speed sensor electrical connector form the connector bracket.
4. Remove the front wheel drive shaft spindle nut. 5. Remove the speed sensor.
6. Support the wheel drive shaft with heavy mechanic's wire or equivalent. 7. Remove and discard
the wheel bearing/hub mounting bolts. 8. Remove the wheel bearing/hub assembly from the
steering knuckle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Bearing > Component Information > Service and
Repair > Front Suspension > Page 3394
1. Install the wheel bearing/hub assembly to the steering knuckle.
Notice: Refer to Fastener Notice.
2. Install the wheel bearing/hub mounting bolts.
Tighten the bolts to 130 N.m (96 lb ft).
3. Install the wheel drive shaft spindle nut.
Tighten the nut to 205 N.m (151 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Bearing > Component Information > Service and
Repair > Front Suspension > Page 3395
4. Install the wheel speed sensor electrical connector to the mounting bracket, if equipped.
5. Connect the wheel speed sensor electrical connector. 6. Install the speed sensor.
7. Install the front brake rotor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Bearing > Component Information > Service and
Repair > Front Suspension > Page 3396
Wheel Bearing: Service and Repair Rear Suspension
Wheel Bearing/Hub Replacement - Rear
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Bearing > Component Information > Service and
Repair > Front Suspension > Page 3397
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Hub > Axle Nut > Component Information >
Specifications
Axle Nut: Specifications
Front Wheel Drive Shaft Spindle Nut
.........................................................................................................................................................
205 Nm 151 lb ft Rear Wheel Drive Shaft Spindle Nut
............................................................................................................................................................
110 Nm 81 lb ft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Fastener > Component Information >
Specifications
Wheel Fastener: Specifications
Wheel Nut ............................................................................................................................................
....................................................... 140 Nm 100 lb ft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Fastener > Component Information >
Specifications > Page 3405
Wheel Fastener: Description and Operation
Metric Wheel Nuts and Bolts Description
Metric wheel/nuts and bolts are identified in the following way:
* The wheel/nut has the word Metric stamped on the face.
* The letter M is stamped on the end of the wheel bolt.
The thread sizes of metric wheel/nuts and the bolts are indicated by the following example: M12 x
1.5.
* M = Metric
* 12 = Diameter in millimeters
* 1.5 = Millimeters gap per thread
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Fastener > Component Information > Service
and Repair > Front Suspension
Wheel Fastener: Service and Repair Front Suspension
Wheel Stud Replacement
Tools Required
J 43631 Ball Joint Remover
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the tire and wheel assembly.
3. Remove the wheel bearing/hub assembly.
4. Using the J 43631, press out the wheel stud from the wheel bearing/hub assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Fastener > Component Information > Service
and Repair > Front Suspension > Page 3408
Installation Procedure
1. Install the wheel stud to the wheel bearing/hub assembly from the bearing side of the hub flange.
2. Place flat washers over the wheel stud being installer. 3. Install the wheel nut or a hex head nut
to the wheel stud. 4. Gradually tighten the nut in order to draw the stud into the hub flange until the
head of the wheel stud is fully seated against the hub flange. 5. Remove the nut and flat washers.
6. Install the wheel bearing/hub assembly to the steering knuckle. 7. Install the tire and wheel
assembly. 8. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Fastener > Component Information > Service
and Repair > Front Suspension > Page 3409
Wheel Fastener: Service and Repair Rear Suspension
Wheel Stud Replacement
Tools Required
J 43631 Ball Joint Remover
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the tire and wheel assembly.
3. Remove the wheel bearing/hub replacement.
4. Using the J 43631, press out the wheel stud from the wheel bearing/hub assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Wheels and Tires > Wheel Fastener > Component Information > Service
and Repair > Front Suspension > Page 3410
Installation Procedure
1. Install the wheel stud to the wheel bearing/hub assembly from the bearing side of the hub flange.
2. Place flat washers over the wheel stud being installed. 3. Install the wheel nut or a hex head nut
to the wheel stud. 4. Gradually tighten the nut in order to draw the stud into the hub flange until the
head of the wheel stud is fully seated against the hub flange. 5. Remove the nut and flat washers.
6. Install the tire and wheel assembly. 7. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Jump Starting > System Information > Service and Repair
Jump Starting: Service and Repair
Jump Starting in Case of Emergency
Caution: Batteries produce explosive gases. Batteries contain corrosive acid. Batteries supply
levels of electrical current high enough to cause burns. Therefore, in order to reduce the risk of
personal injury while working near a battery, observe the following guidelines:
* Always shield your eyes.
* Avoid leaning over the battery whenever possible.
* Do not expose the battery to open flames or sparks.
* Do not allow battery acid to contact the eyes or the skin.
- Flush any contacted areas with water immediately and thoroughly.
- Get medical help.
Notice: This vehicle has a 12 volt, negative ground electrical system. Make sure the vehicle or
equipment being used to jump start the engine is also 12 volt, negative ground. Use of any other
type of system will damage the vehicle's electrical components.
1. Position the vehicle with the booster battery so that the jumper cables will reach.
* Do not let the 2 vehicles touch.
* Make sure that the jumper cables do not have loose ends, or missing insulation.
2. Place an automatic transmission in PARK. If equipped with a manual transmission, place in
NEUTRAL and block the wheels. 3. Turn OFF all electrical loads on both vehicles that are not
needed. 4. Turn OFF the ignition on both vehicles.
5. Connect the red positive (+) cable to the battery positive (+) terminal (2) of the vehicle with the
discharged battery.
Use a remote positive (+) terminal if the vehicle has one.
6. Connect the red positive (+) cable to the positive (+) terminal (1) of the booster battery.
Use a remote positive (+) terminal if the vehicle has one.
7. Connect the black negative (-) cable to the negative (-) terminal (3) of the booster battery.
Caution: Do not connect a jumper cable directly to the negative terminal of a discharged battery to
prevent sparking and possible explosion of battery gases.
8. The final connection is made to a heavy, unpainted metal engine part (4) of the vehicle with the
discharged battery.
This final attachment must be at least 46 cm (18 in) away from the dead battery.
9. Start the engine of the vehicle that is providing the boost.
Notice: Never operate the starter motor more than 15 seconds at a time without pausing in order to
allow it to cool for at least 2 minutes. Overheating will damage the starter motor.
10. Crank the engine of the vehicle with the discharged battery. 11. The black negative (-) cable
must be first disconnected from the vehicle that was boosted (4). 12. Disconnect the black negative
(-) cable from the negative (-) terminal (3) of the booster battery.
Notice: Do not let the cable end touch any metal. Damage to the battery and other components
may result.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Jump Starting > System Information > Service and Repair > Page 3414
13. Disconnect the red positive (+) cable from the positive (+) terminal (1) of the booster battery.
14. Disconnect the red positive (+) cable from the remote positive (+) terminal (2) of the vehicle
with the discharged battery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Towing Information > System Information > Technical Service Bulletins >
Vehicle - Recreational (Dinghy) Towing Information
Towing Information: Technical Service Bulletins Vehicle - Recreational (Dinghy) Towing Information
Bulletin No.: 00-00-89-008F
Date: July 28, 2006
INFORMATION
Subject: Recreational (Dinghy) Towing
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Towing Information > System Information > Technical Service Bulletins >
Vehicle - Recreational (Dinghy) Towing Information > Page 3419
Models
Supercede:
This bulletin is being revised to add model years, models and additional information. Please
discard Corporate Bulletin Number 00-00-89-008E (Section 00 - General Information).
Some customers may want to tow their vehicle behind another vehicle with all FOUR tires on the
ground. This is referred to as "dinghy" towing. Towing in this manner is acceptable only on the
certain vehicles. The vehicle should be properly equipped and prepared as described below. The
passenger cars listed above are the vehicles that CAN be dinghy towed. Passenger cars not listed
above are vehicles where dinghy towing is not permitted or recommended.
Certain 4WD trucks can be dinghy towed depending on the transfer case option. Rear wheel drive
and AWD trucks should NOT be dinghy towed. Refer to the truck models and transfer case options
below.
Please refer to the applicable vehicle Owner's Manual before towing.
Passenger Cars
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Towing Information > System Information > Technical Service Bulletins >
Vehicle - Recreational (Dinghy) Towing Information > Page 3420
Note:
The vehicles shown must not be towed backwards or transmission damage may occur.
Towing Procedure
Note:
Failure to follow these instructions may result in damage to the transmission.
Important:
The towing speed as stated in the Owner's Manual should not exceed 104 km/h (65 mph) for
1995-2005 vehicles.
In order to properly dinghy tow the vehicle, follow these steps:
1. Firmly set the parking brake.
2. Open the fuse panel and pull the fuse(s) indicated in the Owner's Manual section detailing
towing your vehicle. This prevents the instrument panel (IP) and/or electronic PRNDL indicator
from draining the battery.
3. Securely attach the vehicle to the tow vehicle.
4. Turn the ignition key to the OFF position, which is one position forward of LOCK. Unlocking the
steering column allows for proper movement of the front wheels and tires during towing.
For 1997-1999 Cutlass, 1997-2003 Malibu, 2004-2006 Chevrolet Classic and 1999-2004
Alero/Grand Am models, turn the ignition switch to the accessory (ACC) position, which is one
position forward of OFF. This position unlocks the transaxle.
5. Shift the transmission to Neutral (N).
Note:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Towing Information > System Information > Technical Service Bulletins >
Vehicle - Recreational (Dinghy) Towing Information > Page 3421
Use extra care whenever towing another vehicle. Do not exceed the towing vehicle's gross
combination weight (GCW) by adding the weight of the dinghy towed vehicle or vehicle damage
may result.
6. When the vehicle being towed is firmly attached to the tow vehicle, release the parking brake.
7. Replace the fuse(s) in the fuse panel when finished towing.
Tracker Models
Note:
Locking the steering column when towing your vehicle may damage the steering column. Always
unlock the steering column before towing.
Important:
^ Two-wheel drive Trackers cannot be dinghy towed. Two-wheel drive models MUST be towed with
the rear drive wheels on a dolly.
^ The towing speed must not exceed 90 km/h (55 mph).
In order to properly dinghy tow a 4WD Tracker, follow these steps:
1. Set the parking brake.
2. Shift the transmission into Park (AT) or second gear (MT).
3. With the ignition key in the ON position, move the transfer case to Neutral. Make sure the 4WD
indicator on the instrument panel cluster is Off.
4. Turn the ignition key to ACC in order to unlock the steering wheel.
5. Release the parking brake.
Stop towing the vehicle every 300 km (200 mi) and do the following steps:
1. Start the engine of the towed vehicle.
2. Leave the transfer case shift lever in Neutral.
3. Shift the transmission to Drive (AT). For vehicles with (MT), leave the transmission in second
gear with the clutch engaged.
4. Run the engine at medium speed for one minute to circulate the oil through the transfer case.
2003-2007 Pontiac Vibe
Only the front wheel drive vehicles with manual transmission are designed to be dinghy towed. Use
the following procedure to properly dinghy tow these models:
1. Place the shift lever in Neutral.
2. Turn the ignition switch to the ACC position to avoid locking the steering wheel. Make sure that
the audio system is turned off and that nothing is plugged into the power outlets.
3. Release the parking brake.
4. After dinghy towing the vehicle, let the engine idle for more than three minutes before driving the
vehicle.
Four Wheel Drive and All Wheel Drive Light Duty Trucks
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Towing Information > System Information > Technical Service Bulletins >
Vehicle - Recreational (Dinghy) Towing Information > Page 3422
Dinghy towing is permitted on the trucks shown with the transfer case placed in the Neutral
position. Refer to the end of this bulletin for identification information to determine type of transfer
case.
The vehicles shown should NOT be dinghy towed because the transfer cases in these vehicles
either have no neutral position or do not have an internal oil pump to provide lubrication while being
towed. In order to properly tow the vehicles, place the vehicle on a platform trailer with all four tires
off the ground. Avoid towing the vehicle with all four tires on the ground. In rare instances when
towing with all four tires on the ground is unavoidable, both the front and the rear propeller shafts
must be removed in order to prevent damage to the transfer case and/or transmission. Because
front and rear propeller shafts are matched to attaching components at assembly, refer to the
applicable Service Manual for procedures on propeller shaft removal/installation.
Towing Procedure
In order to properly dinghy tow the vehicle, use the following procedure:
1. Firmly set the parking brake.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Towing Information > System Information > Technical Service Bulletins >
Vehicle - Recreational (Dinghy) Towing Information > Page 3423
2. Place the AT in Park (P) or the MT in the lowest gear (1st).
3. Securely attach the vehicle being towed to the tow vehicle.
Caution:
Shifting the transfer case to Neutral can cause the vehicle to roll, even if the transmission is in park
(automatic) or 1st gear (manual), and may cause personal injury.
4. If equipped, place the transfer case shift lever in Neutral (N).
Note:
Use extra care whenever towing another vehicle. Do not exceed the towing vehicle's gross
combination weight (GCW) by adding the weight of the dinghy towed vehicle or vehicle damage
may result.
5. When the vehicle being towed is firmly attached to the tow vehicle, release the parking brake.
6. The Owner's Manual specifies the appropriate ignition key position to ensure that the steering is
unlocked to allow the front wheels to follow the tow vehicle.
Rear Wheel Drive Light Duty Trucks
Important:
^ Dust or dirt can enter the back of the transmission through the opening created by the removal of
the slip yoke from the transmission if proper protection is not provided.
^ Verify that the transmission fluid is at the proper level before driving the truck.
Rear wheel drive vehicles, equipped with AT or MT, should NOT be dinghy towed. These
transmissions have no provisions for internal lubrication while being towed. In order to properly tow
these vehicles, place the vehicle on a platform trailer with all four tires off the ground. Avoid towing
the vehicle with all four tires on the ground. In rare instances when it is unavoidable that a rear
wheel drive vehicle be dinghy towed, the propeller shaft to axle yoke orientation should be marked
and the propeller shaft removed. Refer to the applicable Service Manual for procedures on
propeller shaft removal/installation.
Transfer Case Identification
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Towing Information > System Information > Technical Service Bulletins >
Vehicle - Recreational (Dinghy) Towing Information > Page 3424
The identification tag on the rear half of the transfer case provides the information shown.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Vehicle Lifting > Component Information > Service and Repair
Vehicle Lifting: Service and Repair
Lifting and Jacking the Vehicle
Caution: To avoid any vehicle damage, serious personal injury or death when major components
are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack
stands at the opposite end from which the components are being removed.
Caution: To avoid any vehicle damage, serious personal injury or death, always use the jackstands
to support the vehicle when lifting the vehicle with a jack.
Notice: Perform the following steps before beginning any vehicle lifting or jacking procedure:
* Remove or secure all of the vehicle's contents in order to avoid any shifting or any movement that
may occur during the vehicle lifting or jacking procedure.
* The lifting equipment or the jacking equipment weight rating must meet or exceed the weight of
the vehicle and any vehicle contents.
* The lifting equipment or the jacking equipment must meet the operational standards of the lifting
equipment or jacking equipment's manufacturer.
* Perform the vehicle lifting or jacking procedure on a clean, hard, dry, level surface.
* Perform the vehicle lifting or jacking procedure only at the identified lift points. DO NOT allow the
lifting equipment or jacking equipment to contact any other vehicle components.
Failure to perform the previous steps could result in damage to the lifting equipment or the jacking
equipment, the vehicle, and/or the vehicle's contents.
Vehicle Lifting-Frame Contact Lift
Front Lift Pads
When lifting the vehicle with a frame-contact lift, place the front lift pads approximately 12.2 in (310
mm) inboard from the front pinchweld flanges.
Rear Lift Pads
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Maintenance > Vehicle Lifting > Component Information > Service and Repair > Page 3428
When lifting the vehicle with a frame-contact lift, place the rear lift pads 10.0 in (255 mm) inboard
from the rear pinchweld flanges.
Vehicle Jacking
Under the Center of the Rear Suspension
Lift the rear of the vehicle by placing the floor jack lift pad at the center of the rear suspension.
Supporting the Vehicle with Jackstands
Important: Place jackstands ONLY under strong and stable vehicle structures.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Compression Check > System Information >
Specifications
Compression Check: Specifications
The lowest reading should not be less than 70 percent of the highest reading. No cylinder reading
should be less than
................................................................................................................................................... 689
kPa (100 psi).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Compression Check > System Information >
Specifications > Page 3434
Compression Check: Testing and Inspection
Engine Compression Test
A compression pressure test of the engine cylinders determines the condition of the rings, the
valves, and the head gasket.
Important: Remove the Powertrain Control Module (PCM) and the ignition fuses from the I/P fuse
block.
1. Disable the ignition. 2. Disable the fuel systems. 3. Remove the spark plugs from all the
cylinders. 4. Remove the air duct from the throttle body. 5. Block the throttle plate in the open
position. 6. Measure the engine compression, using the following procedure:
1. Firmly install the compression gauge to the spark plug hole. 2. Have an assistant crank the
engine through at least 4 compression strokes in the testing cylinder. 3. Record the readings on the
gauge at each stroke. 4. Disconnect the gauge. 5. Repeat the compression test for each cylinder.
7. Record the compression readings from all of the cylinders.
* The lowest reading should not be less than 70 percent of the highest reading.
* No cylinder reading should be less than 689 kPa (100 psi).
8. The following list contains examples of the possible measurements:
* When the compression measurement is normal, the compression builds up quickly and evenly to
the specified compression on each cylinder.
* When the compression is low on the first stroke and tends to build up on the following strokes, but
does not reach the normal compression, the piston rings may be the cause.
* If the compression improves considerably with the addition of three squirts of oil, the piston rings
may be the cause.
* When the compression is low on the first stroke and does not build up in the following strokes, the
valves may be the cause.
* The addition of oil does not affect the compression, the valves may be the cause.
* When the compression is low on two adjacent cylinders, or coolant is present in the crankcase,
the head gasket may be the cause.
9. Remove the block from the throttle plate.
10. Install the air duct to the throttle body. 11. Install the spark plugs. 12. Install the Powertrain
Control Module (PCM) fuse. 13. Install the ignition fuse to the I/P fuse block.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Camshaft, Lifters and Push Rods > Camshaft,
Engine > Component Information > Service and Repair
Camshaft: Service and Repair
Camshaft Rear Bearing Hole Plug Replacement
Removal Procedure
1. Remove the engine flywheel.
2. Remove the camshaft rear bearing hole plug.
Installation Procedure
Important: Inspect plug bore for old sealant. Ensure bore is clean and free of knicks and burs.
1. Apply sealer to the camshaft rear bearing hole plug. 2. Install the camshaft rear bearing hole
plug.
3. Ensure that the camshaft rear bearing plug is installed to specifications. 4. Install the engine
flywheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Camshaft, Lifters and Push Rods > Lifter / Lash
Adjuster, Valve > Component Information > Service and Repair
Lifter / Lash Adjuster: Service and Repair
Valve Lifter Replacement
Removal Procedure
1. Remove the valve rocker arm cover. 2. Remove the lower intake manifold. 3. Remove the valve
rocker arms and pushrods.
4. Remove the lifter guide bolts. 5. Remove the lifter guide.
Important: Place the valve lifters in an organized order to ensure that they are installed in the same
location from which they were removed.
6. Remove the lifters.
Installation Procedure
1. Coat the valve lifters using prelube GM P/N 1052367 (Canadian P/N 992869) or the equivalent.
2. Install the valve lifters in their original locations. 3. Install the lifter guide.
Notice: Refer to Fastener Notice .
4. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489) or the equivalent to the lifter
guide bolt threads and install the bolts.
Tighten the bolts to 10 N.m (89 lb in).
5. Install the valve rocker arms and pushrods. 6. Install the lower intake manifold. 7. Install the
valve rocker arm cover. 8. Inspect for leaks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Camshaft, Lifters and Push Rods > Push Rod >
Component Information > Service and Repair
Push Rod: Service and Repair
Valve Rocker Arm and Push Rod Replacement
Removal Procedure
1. Remove the valve rocker arm cover(s).
2. Remove the rocker arm bolt(s). 3. Remove the valve rocker arm(s) and the pushrod(s).
Installation Procedure
1. Coat the ends of the push rods using prelube GM P/N 1052367 (Canadian P/N 992869) or the
equivalent.
Important: The intake valve push rods measure 146.0 mm (5.75 in) in length. The exhaust valve
push rods measure 152.5 mm (6.0 in) in length.
2. Install the push rods in their original location.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Camshaft, Lifters and Push Rods > Push Rod >
Component Information > Service and Repair > Page 3445
3. Coat the rocker arm friction surfaces using prelube GM P/N 1052367 (Canadian P/N 992869) or
the equivalent.
Important: Shims may be required under the valve rocker arm pedestals if reconditioning has been
performed on the cylinder head or its components.
4. Install the valve rocker arms in their original positions.
Notice: Refer to Fastener Notice .
5. Install the valve rocker arm bolts.
Tighten the bolts to 42 N.m (31 lb ft).
6. Install the valve rocker arm cover(s).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Camshaft, Lifters and Push Rods > Rocker Arm
Assembly > Component Information > Service and Repair
Rocker Arm Assembly: Service and Repair
Valve Rocker Arm and Push Rod Replacement
Removal Procedure
1. Remove the valve rocker arm cover(s).
2. Remove the rocker arm bolt(s). 3. Remove the valve rocker arm(s) and the pushrod(s).
Installation Procedure
1. Coat the ends of the push rods using prelube GM P/N 1052367 (Canadian P/N 992869) or the
equivalent.
Important: The intake valve push rods measure 146.0 mm (5.75 in) in length. The exhaust valve
push rods measure 152.5 mm (6.0 in) in length.
2. Install the push rods in their original location.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Camshaft, Lifters and Push Rods > Rocker Arm
Assembly > Component Information > Service and Repair > Page 3449
3. Coat the rocker arm friction surfaces using prelube GM P/N 1052367 (Canadian P/N 992869) or
the equivalent.
Important: Shims may be required under the valve rocker arm pedestals if reconditioning has been
performed on the cylinder head or its components.
4. Install the valve rocker arms in their original positions.
Notice: Refer to Fastener Notice .
5. Install the valve rocker arm bolts.
Tighten the bolts to 42 N.m (31 lb ft).
6. Install the valve rocker arm cover(s).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Connecting Rod
Bearing > Component Information > Specifications
Connecting Rod Bearing: Specifications
Connecting Rod Bearing Clearance
................................................................................................................................... 0.18-0.062 mm
0.0007-0.017 in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Connecting Rod,
Engine > Component Information > Specifications
Connecting Rod: Specifications
Connecting Rod Bearing Cap Bolt
First Pass .............................................................................................................................................
..................................................... 20 N.m 15 lb ft Final Pass .............................................................
........................................................................................................................................... 75 degrees
Connecting Rod Bore Diameter
..................................................................................................................................... 53.962-53.978
mm 2.124-2.125 in Connecting Rod Bore Out-of-Round
.................................................................................................................................................... 0.008
mm 0.0002 in Connecting Rod Length - Center to Center
....................................................................................................................... 144.75-144.81 mm
5.69-5.70 in Connecting Rod Side Clearance
............................................................................................................................................ 0.25-0.37
mm 0.010-0.015 in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Crankshaft Main
Bearing > Component Information > Specifications
Crankshaft Main Bearing: Specifications
Crankshaft Main Bearing Cap Bolt/Stud
First Pass .............................................................................................................................................
..................................................... 50 N.m 37 lb ft Final Pass .............................................................
........................................................................................................................................... 77 degrees
Crankshaft Main Bearing Clearance - Except #3
........................................................................................................... 0.019-0.064 mm
0.0008-0.0025 in Crankshaft Main Bearing Clearance - #3 Thrust Bearing
.............................................................................................. 0.032-0.077 mm 0.0012-0.0030 in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Crankshaft, Engine >
Component Information > Specifications
Crankshaft: Specifications
Connecting Rod Journal Diameter
............................................................................................................................. 50.768-50.784 mm
1.9987-1.9994 in Connecting Rod Journal Out-of-Round
................................................................................................................................................ 0.005
mm 0.0002 in Connecting Rod Journal Taper
.............................................................................................................................................................
0.005 mm 0.0002 in Connecting Rod Journal Width
......................................................................................................................................... 21.92-22.08
mm 0.863-0.869 in Crankshaft End Play
......................................................................................................................................................
0.060-0.210 mm 0.0024-0.0083 in Crankshaft Main Bearing Journal Width
............................................................................................................................... 23.9-24.1 mm
0.941-0.949 in Crankshaft Main Journal Diameter
............................................................................................................................ 67.239-67.257 mm
2.6473-2.6483 in Crankshaft Main Journal Out-of-Round
.............................................................................................................................................. 0.005
mm 0.0002 in Crankshaft Main Journal Taper
............................................................................................................................................................
0.005 mm 0.0002 in Crankshaft Rear Flange Runout
.............................................................................................................................................................
0.04 mm 0.0016 in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Engine Block Heater >
Component Information > Service and Repair > Coolant Heater Replacement
Engine Block Heater: Service and Repair Coolant Heater Replacement
Coolant Heater Replacement
Removal Procedure
1. Drain the engine coolant. 2. Remove the coolant heater cord from the heater (2).
Important: Do not score the surface of the engine block hole when removing the coolant heater.
3. Remove the coolant heater from the block.
Installation Procedure
1. Remove any burrs, sealer, paint or other foreign material from the threads/sealing surface of the
engine block and from the old coolant heater if the
heater is to be reused.
2. If reusing the old coolant heater, apply thread sealant GM P/N 12346004 (Canadian P/N
10953480), or equivalent to the threads.
Notice: Refer to Component Fastener Tightening Notice .
3. Install the coolant heater to the engine block.
Tighten the coolant heater to 50 N.m (37 lb ft).
4. Install the coolant heater cord to the heater (2). 5. Fill the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Engine Block Heater >
Component Information > Service and Repair > Coolant Heater Replacement > Page 3467
Engine Block Heater: Service and Repair Coolant Heater Cord Replacement
Coolant Heater Cord Replacement
Removal Procedure
1. Disconnect the coolant heater cord (2) from the coolant heater (1).
2. Disconnect the coolant heater cord (1) from the cord retainers (2). 3. Remove the coolant heater
cord (1) from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Engine Block Heater >
Component Information > Service and Repair > Coolant Heater Replacement > Page 3468
1. Route the coolant heater cord (1) as illustrated, in the engine compartment. 2. Connect the
coolant heater cord (1) to the cord retainers (2).
3. Connect the coolant heater cord (2) to the coolant heater (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Harmonic Balancer Crankshaft Pulley > Component Information > Specifications
Harmonic Balancer - Crankshaft Pulley: Specifications
Crankshaft Balancer Bolt .....................................................................................................................
...................................................... 160 N.m 118 lb ft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Harmonic Balancer Crankshaft Pulley > Component Information > Specifications > Page 3472
Harmonic Balancer - Crankshaft Pulley: Service and Repair
Crankshaft Balancer Replacement
Tools Required
* J 39914 Serpentine Belt Tensioner Unloader
* J 41816-A Crankshaft Balancer Remover
* J 29113 Balancer and Crank Sprocket Puller
* J 45059 Angle Meter
* EN 46359 Puller End Protector
Removal Procedure
1. Using J 39914 rotate the drive belt tensioner (8) to release the tension on the drive belt. 2.
Remove the drive belt from the right idler pulley (2). 3. Carefully release J 39914 to relieve the drive
belt tensioner spring tension. 4. Remove J 39914 from the drive belt tensioner (8). 5. Raise and
support the vehicle. 6. Remove the right front wheel. 7. Remove the wheelhouse liner.
8. Remove the crankshaft balancer bolt and washer.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Harmonic Balancer Crankshaft Pulley > Component Information > Specifications > Page 3473
Notice: The inertial weight section of the crankshaft balancer is assembled to the hub with a rubber
type material. The correct installation procedures (with the proper tool) must be followed or
movement of the inertial weight section of the hub will destroy the tuning of the crankshaft
balancer.
Notice: Do NOT use a power-assisted tool with the special tool in order to remove or install this
component. You cannot properly control the alignment of this component using a power-assisted
tool, and this can damage the component.
9. Remove the crankshaft balancer using the J 41816-A along with EN 46359 .
Installation Procedure
1. Apply sealer GM P/N 12378521 (Canadian P/N 88901148) or the equivalent, to the keyway of
the crankshaft balancer. 2. Place the crankshaft balancer into position over the key in the
crankshaft.
Notice: Do NOT use a power-assisted tool with the special tool in order to remove or install this
component. You cannot properly control the alignment of this component using a power-assisted
tool, and this can damage the component.
3. Install the J 29113 onto the crankshaft. 4. Rotate the hex nut on the J 29113 to install the
crankshaft balancer onto the crankshaft. 5. Remove the J 29113 from the crankshaft .
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Harmonic Balancer Crankshaft Pulley > Component Information > Specifications > Page 3474
Notice: Refer to Fastener Notice .
6. Install the crankshaft balancer bolt.
Tighten the bolt to 70 N.m (52 lb ft). Turn the bolt an additional 70 degrees using the J 45059 .
7. Install the wheelhouse liner. 8. Install the right front wheel. 9. Lower the vehicle.
10. Insure the drive belt is properly centered on all the pulleys except the right idler pulley (3). 11.
Using J 39914 rotate the drive belt tensioner away from the drive belt. 12. Install the drive belt to
the right idler pulley (2). 13. Carefully release J 39914 allowing the drive belt tensioner (8) to come
in contact with the drive belt. 14. Remove J 39914 from the drive belt tensioner (8). 15. Inspect the
drive belt to insure the belt is properly centered on all the pulleys (1-8).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Piston, Engine >
Component Information > Specifications
Piston: Specifications
Piston
Piston Diameter - production - cylinder 1-4
.............................................................................................................. 91.985-92.003 mm
3.621-3.622 in Piston Diameter - service limit - cylinder 1-4
.................................................................................................................................. 91.945 mm
3.619 in Piston Diameter - production - cylinder 5-6
................................................................................................................ 91.99-92.028 mm
3.621-3.623 in Piston Diameter - service limit - cylinder 5-6
.................................................................................................................................. 91.945 mm
3.619 in Piston Pin Bore Diameter
......................................................................................................................................
23.005-23.010 mm 0.9057-0.9059 in Piston Ring Groove Width - First
...................................................................................................................................... 1.23-1.25 mm
0.048-0.049 in Piston Ring Groove Width - Second
................................................................................................................................. 1.53-1.55 mm
0.060-0.061 in Piston Ring Groove Width - Oil Control
......................................................................................................................... 3.03-3.055 mm
0.119-0.120 in Piston to Bore Clearance - production - 1-4
................................................................................................................ 0.17-0.053 mm
0.0006-0.0020 in Piston to Bore Clearance - service limit- 1-4
................................................................................................................................... 0.093 mm
0.0036 in Piston to Bore Clearance - production - 5-6
............................................................................................................ -0.008-0.048 mm
-0.0003-0.0018 in Piston to Bore Clearance - service limit- 5-6
................................................................................................................................... 0.093 mm
0.0036 in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Piston Pin, Engine >
Component Information > Specifications
Piston Pin: Specifications
Pin
Piston Pin Clearance to Connecting Rod Bore - Press Fit
............................................................................ -0.047 to -0.019 mm -0.0019 to -0.0007 in Piston
Pin Clearance to Piston Pin Bore
................................................................................................................ 0.008-0.016 mm
0.00031-0.00063 in Piston Pin Diameter
...............................................................................................................................................
22.994-22.997 mm 0.9053-0.9054 in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Piston Ring, Engine >
Component Information > Specifications
Piston Ring: Specifications
Piston Ring End Gap
First Compression Ring
...............................................................................................................................................
0.15-0.36 mm 0.006-0.014 in Second Compression Ring
....................................................................................................................................... 0.48-0.74
mm 0.0188-0.0291 in Oil Control Ring
......................................................................................................................................................
0.25-0.77 mm 0.0098-0.0303 in
Piston Ring to Groove Clearance
First Compression Ring
........................................................................................................................................... 0.04-0.086
mm 0.002-0.0033 in Second Compression Ring
......................................................................................................................................... 0.04-0.08
mm 0.002-0.0031 in Oil Control Ring
.................................................................................................................................................
0.07-0.095 mm 0.0028-0.0037 in
Piston Ring Thickness
First Compression Ring
...........................................................................................................................................
1.164-1.190 mm 0.046-0.047 in Second Compression Ring
................................................................................................................................... 1.460-1.490
mm 0.0574-0.0586 in Oil Control Ring - Maximum
.......................................................................................................................................................
2.960 mm 0.116 in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Fuel Pressure Release
> System Information > Service and Repair > Fuel Pressure Relief
Fuel Pressure Release: Service and Repair Fuel Pressure Relief
FUEL PRESSURE RELIEF
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
WITH CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Remove the engine cover, if required. 2. Loosen the fuel fill cap in order to relieve the fuel tank
vapor pressure. 3. Remove the fuel rail service port cap.
4. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel will
absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
5. Connect the CH-48027-3 (4) to the fuel rail service port. 6. Connect the CH-48027-2 (2) to the
CH-48027-3 (4). 7. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 8.
Open the valve on the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 9. Close the
valve on the CH-48027-2 (2).
10. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
IMPORTANT: If relieving the fuel pressure for the fuel pressure gage installation and removal, it is
NOT necessary to proceed with the following steps.
11. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Fuel Pressure Release
> System Information > Service and Repair > Fuel Pressure Relief > Page 3489
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-2 (2) from the CH-48027-3 (4).
12. Disconnect the CH-48027-3 (4) from the fuel rail service port. 13. Remove the shop towel from
around the fuel rail service port, and place in an approved gasoline container. 14. Install the fuel rail
service port cap. 15. Install the engine cover, if required. 16. Tighten the fuel fill cap.
WITHOUT CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure. 2. Remove the engine
cover, if required. 3. Remove the fuel rail service port cap. 4. Wrap a shop towel around the fuel rail
service port and using a small flat bladed tool, depress (open) the fuel rail test port valve. 5.
Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container. 6. Install the fuel rail service port cap. 7. Install the engine cover, if required. 8. Tighten
the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Fuel Pressure Release
> System Information > Service and Repair > Fuel Pressure Relief > Page 3490
Fuel Pressure Release: Service and Repair Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Fuel Pressure Release
> System Information > Service and Repair > Fuel Pressure Relief > Page 3491
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Rocker Arm Assembly
> Component Information > Service and Repair
Rocker Arm Assembly: Service and Repair
Valve Rocker Arm and Push Rod Replacement
Removal Procedure
1. Remove the valve rocker arm cover(s).
2. Remove the rocker arm bolt(s). 3. Remove the valve rocker arm(s) and the pushrod(s).
Installation Procedure
1. Coat the ends of the push rods using prelube GM P/N 1052367 (Canadian P/N 992869) or the
equivalent.
Important: The intake valve push rods measure 146.0 mm (5.75 in) in length. The exhaust valve
push rods measure 152.5 mm (6.0 in) in length.
2. Install the push rods in their original location.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Rocker Arm Assembly
> Component Information > Service and Repair > Page 3495
3. Coat the rocker arm friction surfaces using prelube GM P/N 1052367 (Canadian P/N 992869) or
the equivalent.
Important: Shims may be required under the valve rocker arm pedestals if reconditioning has been
performed on the cylinder head or its components.
4. Install the valve rocker arms in their original positions.
Notice: Refer to Fastener Notice .
5. Install the valve rocker arm bolts.
Tighten the bolts to 42 N.m (31 lb ft).
6. Install the valve rocker arm cover(s).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Cover >
Component Information > Service and Repair > Valve Rocker Arm Cover Replacement - Left Side
Valve Cover: Service and Repair Valve Rocker Arm Cover Replacement - Left Side
Valve Rocker Arm Cover Replacement - Left Side
Removal Procedure
1. Remove the fuel injector sight shield.
2. Disconnect the left side spark plug wires (1) from the retainers (2).
3. Remove the bolt (2) and the spark plug wire support (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Cover >
Component Information > Service and Repair > Valve Rocker Arm Cover Replacement - Left Side > Page 3500
4. Disconnect the positive crankcase ventilation (PCV) foul air pipe (4) from the PCV valve.
5. Remove the oil filler cap from the valve rocker arm cover.
Notice: Valve rocker arm cover gasket and sealant must be carefully trimmed away from lower
intake manifold gasket. Failure to do so will damage the lower intake manifold gasket, causing a
severe oil leak.
6. Loosen the valve rocker arm cover bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Cover >
Component Information > Service and Repair > Valve Rocker Arm Cover Replacement - Left Side > Page 3501
Important: When removing the valve rocker arm cover, ensure the gasket stays in place attached to
the cylinder head.
7. Remove the valve rocker arm cover.
Bump the end of the valve rocker arm cover with the palm of your hand or a soft rubber mallet if the
cover adheres to the cylinder head.
8. Trim the valve cover gasket and sealant away from the lower intake manifold gasket at the
cylinder head to the lower intake manifold joints (1). 9. Remove the rocker arm cover gasket.
10. Clean the sealing surface on the cylinder head with degreaser. 11. Clean the valve rocker arm
cover.
Installation Procedure
Important: All gasket mating surfaces need to be free of oil and foreign material. Refer to Sealers,
Adhesives, and Lubricants for the correct part number to use to clean surfaces.
Important: Apply sealant at the cylinder head to lower intake manifold joint. Refer to Sealers,
Adhesives, and Lubricants for the correct part number.
1. Apply sealant at the cylinder head to lower intake manifold joints (1).
2. Install a new gasket to the valve rocker arm cover. Ensure the gasket is properly seated in the
groove of the valve rocker arm cover.
Notice: Refer to Fastener Notice .
3. Install the valve rocker arm cover.
Tighten the bolts to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Cover >
Component Information > Service and Repair > Valve Rocker Arm Cover Replacement - Left Side > Page 3502
4. Install the oil filler cap to the valve rocker arm cover.
5. Connect the PCV foul air pipe (4) to the PCV valve.
6. Install the spark plug wire support (1) and bolt (2).
Tighten the bolt to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Cover >
Component Information > Service and Repair > Valve Rocker Arm Cover Replacement - Left Side > Page 3503
7. Connect the left side spark plug wires (1) to the spark plug wire retainers (2). 8. Install the fuel
injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Cover >
Component Information > Service and Repair > Valve Rocker Arm Cover Replacement - Left Side > Page 3504
Valve Cover: Service and Repair Valve Rocker Arm Cover Replacement - Right Side
Valve Rocker Arm Cover Replacement - Right Side
Removal Procedure
1. Remove the fuel injector sight shield. 2. Remove the generator bracket. 3. Remove the ignition
control module bracket from the engine with the ignition control module and spark plug wires still
attached. Position out of
the way.
4. Disconnect the positive crankcase ventilation (PCV) fresh air pipe (1) from the right valve rocker
arm cover.
Notice: Valve rocker arm cover gasket and sealant must be carefully trimmed away from lower
intake manifold gasket. Failure to do so will damage the lower intake manifold gasket, causing a
severe oil leak.
5. Loosen the valve rocker arm cover bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Cover >
Component Information > Service and Repair > Valve Rocker Arm Cover Replacement - Left Side > Page 3505
Important: When removing the valve rocker arm cover, ensure the gasket stays in place attached to
the cylinder head.
6. Remove the valve rocker arm cover.
Bump the end of the valve rocker arm cover with the palm of your hand or a soft rubber mallet if the
cover adheres to the cylinder head.
7. Trim the valve cover gasket and sealant away from the lower intake manifold gasket at the
cylinder head to lower intake manifold joints (1). 8. Remove the valve rocker arm cover gasket. 9.
Clean the sealing surface on the cylinder head with degreaser.
10. Clean the valve rocker arm cover.
Installation Procedure
Important: All gasket mating surfaces need to be free of oil and foreign material. Refer to Sealers,
Adhesives, and Lubricants for the correct part number to use to clean surfaces.
Important: Apply sealer at the cylinder head to lower intake manifold joint. Refer to Sealers,
Adhesives, and Lubricants for the correct part number.
1. Apply sealant at the cylinder head to lower intake manifold joints (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Cover >
Component Information > Service and Repair > Valve Rocker Arm Cover Replacement - Left Side > Page 3506
2. Install a new gasket to the valve rocker arm cover. Ensure the gasket is properly seated in the
groove of the valve rocker arm cover.
Notice: Refer to Fastener Notice .
3. Install the valve rocker arm cover.
Tighten the bolts to 10 N.m (89 lb in).
4. Connect the PCV fresh air pipe (1) to the right valve rocker arm cover. 5. Install the ignition
control module bracket with the ignition control module and spark plug wired still attached. 6. Install
the generator bracket. 7. Install the fuel injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Guide >
Component Information > Technical Service Bulletins > Customer Interest: > 08-06-01-022 > Oct > 08 > Engine - Ticking
Noise
Valve Guide: Customer Interest Engine - Ticking Noise
TECHNICAL
Bulletin No.: 08-06-01-022
Date: October 28, 2008
Subject: Tick Type Noise Coming From Engine (Inspect Exhaust Valve Stem to Guide Clearance)
Models: 2006-2008 Chevrolet Equinox 2006-2008 Pontiac Torrent
Equipped with 3.4L Engine (VIN F - RPO LNJ)
Condition
Some customers may comment that they hear a ticking noise coming from the engine. Some may
describe the noise as sounding like a lifter tick.
Cause
The finish on the exhaust valve stem(s) may have caused excessive wear on the exhaust valve
guide(s) in the cylinder heads. When this occurs, the exhaust valve stem to guide clearance
becomes out of specification and the tick noise is created each time the valve stem comes in
contact with the guide.
Correction
1. Verify that the engine oil level is within the operating range.
2. Verify that the noise in question is not the normal ticking type sound produced by the fuel
injectors.
3. Connect a mechanical oil pressure gauge and verify that the engine has adequate oil pressure.
Refer to SI for additional information if necessary.
4. If the oil pressure is within specification, then remove the left (front) rocker cover and gasket.
Refer to the Valve Rocker Arm Cover Replacement - Left Side in SI.
5. Place shop towels over the rocker arms and push rods to contain engine oil in the next step.
6. Start the engine and allow to idle.
Important:
The following steps only need to be done on the exhaust valves.
7. Using a block of wood or the wooden handle on a hammer, place a side load on cylinder number
2 exhaust valve spring.
^ If the noise is reduced or eliminated, then there is excessive clearance between that exhaust
valve stem and the guide in the cylinder head. Proceed to Step 8.
^ If the noise is NOT reduced or eliminated, then proceed to cylinder number 4 and 6 exhaust valve
springs and apply the same type of side load. If the noise is reduced or eliminated then there is
excessive clearance between an exhaust valve stem and guide in the cylinder head. Proceed to
the next step.
8. Remove the right (rear) rocker cover.
Important:
It may not be possible to apply a side load to the exhaust springs with a piece of wood or hammer
handle because there is less clearance at the rear side of the engine. As a result, the inspection
procedure on the rear side is different than the left (front) side.
9. Remove the rocker arm and push rod from cylinder # 1 exhaust valve.
Important:
With one rocker arm and push rod removed at a time in the next steps the engine will exhibit a
noticeable misfire or rough idle during the test.
10. With shop towels in place to contain any oil, start the engine and allow to idle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Guide >
Component Information > Technical Service Bulletins > Customer Interest: > 08-06-01-022 > Oct > 08 > Engine - Ticking
Noise > Page 3515
^ If the tick noise is reduced or eliminated, then there is excessive clearance between that exhaust
valve stem and guide in the cylinder head. Proceed to Step 11.
^ If the noise is NOT reduced or eliminated, then reinstall the push rod and rocker arm and tighten
the bolt to specification. Then proceed to cylinder number 3, and if necessary number 5, exhaust
valve and repeat the process. If the noise is reduced or eliminated, then there is excessive
clearance between an exhaust valve stem and guide in the cylinder head. Proceed to the next step.
^ If the tick noise is always present and never is reduced or eliminated when testing all 6 exhaust
valves, then the noise is coming from some other source and it is not necessary to continue with
this bulletin. Refer to SI for additional diagnostic information.
11. Replace any cylinder head that has an exhaust valve stem with excessive clearance to the
guide. It will be necessary to install three new exhaust valves in each cylinder head replaced.
Please note that the exhaust valve part number listed below will have an improved stem finish.
Refer to the Cylinder Head Replacement procedure in SI.
Parts Information
Replacement cylinder heads DO NOT come with any valvetrain components or expansion (freeze)
plugs. When ordering a replacement head, it will also be necessary to order 3 exhaust valves and 2
expansion plugs for each head ordered. The intake valves and "all" springs, caps and locks are
reusable. In addition, new valve stem seals (intake and exhaust) will be needed and are included in
the head gasket kit listed.
Warranty Information
For vehicle repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Guide >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 08-06-01-022 > Oct > 08 > Engine
- Ticking Noise
Valve Guide: All Technical Service Bulletins Engine - Ticking Noise
TECHNICAL
Bulletin No.: 08-06-01-022
Date: October 28, 2008
Subject: Tick Type Noise Coming From Engine (Inspect Exhaust Valve Stem to Guide Clearance)
Models: 2006-2008 Chevrolet Equinox 2006-2008 Pontiac Torrent
Equipped with 3.4L Engine (VIN F - RPO LNJ)
Condition
Some customers may comment that they hear a ticking noise coming from the engine. Some may
describe the noise as sounding like a lifter tick.
Cause
The finish on the exhaust valve stem(s) may have caused excessive wear on the exhaust valve
guide(s) in the cylinder heads. When this occurs, the exhaust valve stem to guide clearance
becomes out of specification and the tick noise is created each time the valve stem comes in
contact with the guide.
Correction
1. Verify that the engine oil level is within the operating range.
2. Verify that the noise in question is not the normal ticking type sound produced by the fuel
injectors.
3. Connect a mechanical oil pressure gauge and verify that the engine has adequate oil pressure.
Refer to SI for additional information if necessary.
4. If the oil pressure is within specification, then remove the left (front) rocker cover and gasket.
Refer to the Valve Rocker Arm Cover Replacement - Left Side in SI.
5. Place shop towels over the rocker arms and push rods to contain engine oil in the next step.
6. Start the engine and allow to idle.
Important:
The following steps only need to be done on the exhaust valves.
7. Using a block of wood or the wooden handle on a hammer, place a side load on cylinder number
2 exhaust valve spring.
^ If the noise is reduced or eliminated, then there is excessive clearance between that exhaust
valve stem and the guide in the cylinder head. Proceed to Step 8.
^ If the noise is NOT reduced or eliminated, then proceed to cylinder number 4 and 6 exhaust valve
springs and apply the same type of side load. If the noise is reduced or eliminated then there is
excessive clearance between an exhaust valve stem and guide in the cylinder head. Proceed to
the next step.
8. Remove the right (rear) rocker cover.
Important:
It may not be possible to apply a side load to the exhaust springs with a piece of wood or hammer
handle because there is less clearance at the rear side of the engine. As a result, the inspection
procedure on the rear side is different than the left (front) side.
9. Remove the rocker arm and push rod from cylinder # 1 exhaust valve.
Important:
With one rocker arm and push rod removed at a time in the next steps the engine will exhibit a
noticeable misfire or rough idle during the test.
10. With shop towels in place to contain any oil, start the engine and allow to idle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Guide >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 08-06-01-022 > Oct > 08 > Engine
- Ticking Noise > Page 3521
^ If the tick noise is reduced or eliminated, then there is excessive clearance between that exhaust
valve stem and guide in the cylinder head. Proceed to Step 11.
^ If the noise is NOT reduced or eliminated, then reinstall the push rod and rocker arm and tighten
the bolt to specification. Then proceed to cylinder number 3, and if necessary number 5, exhaust
valve and repeat the process. If the noise is reduced or eliminated, then there is excessive
clearance between an exhaust valve stem and guide in the cylinder head. Proceed to the next step.
^ If the tick noise is always present and never is reduced or eliminated when testing all 6 exhaust
valves, then the noise is coming from some other source and it is not necessary to continue with
this bulletin. Refer to SI for additional diagnostic information.
11. Replace any cylinder head that has an exhaust valve stem with excessive clearance to the
guide. It will be necessary to install three new exhaust valves in each cylinder head replaced.
Please note that the exhaust valve part number listed below will have an improved stem finish.
Refer to the Cylinder Head Replacement procedure in SI.
Parts Information
Replacement cylinder heads DO NOT come with any valvetrain components or expansion (freeze)
plugs. When ordering a replacement head, it will also be necessary to order 3 exhaust valves and 2
expansion plugs for each head ordered. The intake valves and "all" springs, caps and locks are
reusable. In addition, new valve stem seals (intake and exhaust) will be needed and are included in
the head gasket kit listed.
Warranty Information
For vehicle repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Guide >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Valve Guide: > 07-07-30-014 > May >
07 > A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Control Module: All Technical Service Bulletins A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Spring >
Component Information > Service and Repair
Valve Spring: Service and Repair
Valve Stem Oil Seal and Valve Spring Replacement
Tools Required
* J 22794 Spark Plug Port Adapter
* J 38606 Valve Spring Compressor
Removal Procedure
1. Remove the rocker arm. 2. Remove the spark plug.
Important: Before you remove the valve keys, rotate the engine so that the piston in the cylinder
you are working on is at (TDC) top dead center. This will eliminate the possibility of the valve
accidentally falling inside the cylinder.
3. Install the J 22794 into the spark plug port. Apply compressed air in order to hold the valves in
place.
4. Compress the valve spring with the J 38606 .
5. Remove the valve keys (2). 6. Remove the valve spring cap (3). 7. Remove the valve spring (4).
8. Inspect the valve spring for damage. Replace the spring if it is damaged. 9. Remove the spring
seat/valve stem oil seal (5).
Installation Procedure
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Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve Spring >
Component Information > Service and Repair > Page 3535
1. Install the valve stem oil seal/spring seat (5).
* Use a suitable driver.
* Press over the valve guide boss.
2. Install the valve spring (4). 3. Install the valve spring cap (3).
4. Compress the valve spring using the J 38606 . 5. Install the valve keys. If necessary, hold the
valve keys in place with grease. 6. Remove the J 38606 in order to release the valve spring. 7.
Ensure that the valve keys are seated. 8. Release the air pressure and remove the J 22794 . 9.
Install the valve rocker arm.
10. Install the spark plug.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve, Intake/Exhaust
> Component Information > Technical Service Bulletins > Customer Interest for Valve: > 08-06-01-022 > Oct > 08 > Engine
- Ticking Noise
Valve: Customer Interest Engine - Ticking Noise
TECHNICAL
Bulletin No.: 08-06-01-022
Date: October 28, 2008
Subject: Tick Type Noise Coming From Engine (Inspect Exhaust Valve Stem to Guide Clearance)
Models: 2006-2008 Chevrolet Equinox 2006-2008 Pontiac Torrent
Equipped with 3.4L Engine (VIN F - RPO LNJ)
Condition
Some customers may comment that they hear a ticking noise coming from the engine. Some may
describe the noise as sounding like a lifter tick.
Cause
The finish on the exhaust valve stem(s) may have caused excessive wear on the exhaust valve
guide(s) in the cylinder heads. When this occurs, the exhaust valve stem to guide clearance
becomes out of specification and the tick noise is created each time the valve stem comes in
contact with the guide.
Correction
1. Verify that the engine oil level is within the operating range.
2. Verify that the noise in question is not the normal ticking type sound produced by the fuel
injectors.
3. Connect a mechanical oil pressure gauge and verify that the engine has adequate oil pressure.
Refer to SI for additional information if necessary.
4. If the oil pressure is within specification, then remove the left (front) rocker cover and gasket.
Refer to the Valve Rocker Arm Cover Replacement - Left Side in SI.
5. Place shop towels over the rocker arms and push rods to contain engine oil in the next step.
6. Start the engine and allow to idle.
Important:
The following steps only need to be done on the exhaust valves.
7. Using a block of wood or the wooden handle on a hammer, place a side load on cylinder number
2 exhaust valve spring.
^ If the noise is reduced or eliminated, then there is excessive clearance between that exhaust
valve stem and the guide in the cylinder head. Proceed to Step 8.
^ If the noise is NOT reduced or eliminated, then proceed to cylinder number 4 and 6 exhaust valve
springs and apply the same type of side load. If the noise is reduced or eliminated then there is
excessive clearance between an exhaust valve stem and guide in the cylinder head. Proceed to
the next step.
8. Remove the right (rear) rocker cover.
Important:
It may not be possible to apply a side load to the exhaust springs with a piece of wood or hammer
handle because there is less clearance at the rear side of the engine. As a result, the inspection
procedure on the rear side is different than the left (front) side.
9. Remove the rocker arm and push rod from cylinder # 1 exhaust valve.
Important:
With one rocker arm and push rod removed at a time in the next steps the engine will exhibit a
noticeable misfire or rough idle during the test.
10. With shop towels in place to contain any oil, start the engine and allow to idle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve, Intake/Exhaust
> Component Information > Technical Service Bulletins > Customer Interest for Valve: > 08-06-01-022 > Oct > 08 > Engine
- Ticking Noise > Page 3544
^ If the tick noise is reduced or eliminated, then there is excessive clearance between that exhaust
valve stem and guide in the cylinder head. Proceed to Step 11.
^ If the noise is NOT reduced or eliminated, then reinstall the push rod and rocker arm and tighten
the bolt to specification. Then proceed to cylinder number 3, and if necessary number 5, exhaust
valve and repeat the process. If the noise is reduced or eliminated, then there is excessive
clearance between an exhaust valve stem and guide in the cylinder head. Proceed to the next step.
^ If the tick noise is always present and never is reduced or eliminated when testing all 6 exhaust
valves, then the noise is coming from some other source and it is not necessary to continue with
this bulletin. Refer to SI for additional diagnostic information.
11. Replace any cylinder head that has an exhaust valve stem with excessive clearance to the
guide. It will be necessary to install three new exhaust valves in each cylinder head replaced.
Please note that the exhaust valve part number listed below will have an improved stem finish.
Refer to the Cylinder Head Replacement procedure in SI.
Parts Information
Replacement cylinder heads DO NOT come with any valvetrain components or expansion (freeze)
plugs. When ordering a replacement head, it will also be necessary to order 3 exhaust valves and 2
expansion plugs for each head ordered. The intake valves and "all" springs, caps and locks are
reusable. In addition, new valve stem seals (intake and exhaust) will be needed and are included in
the head gasket kit listed.
Warranty Information
For vehicle repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve, Intake/Exhaust
> Component Information > Technical Service Bulletins > All Technical Service Bulletins for Valve: > 08-06-01-022 > Oct >
08 > Engine - Ticking Noise
Valve: All Technical Service Bulletins Engine - Ticking Noise
TECHNICAL
Bulletin No.: 08-06-01-022
Date: October 28, 2008
Subject: Tick Type Noise Coming From Engine (Inspect Exhaust Valve Stem to Guide Clearance)
Models: 2006-2008 Chevrolet Equinox 2006-2008 Pontiac Torrent
Equipped with 3.4L Engine (VIN F - RPO LNJ)
Condition
Some customers may comment that they hear a ticking noise coming from the engine. Some may
describe the noise as sounding like a lifter tick.
Cause
The finish on the exhaust valve stem(s) may have caused excessive wear on the exhaust valve
guide(s) in the cylinder heads. When this occurs, the exhaust valve stem to guide clearance
becomes out of specification and the tick noise is created each time the valve stem comes in
contact with the guide.
Correction
1. Verify that the engine oil level is within the operating range.
2. Verify that the noise in question is not the normal ticking type sound produced by the fuel
injectors.
3. Connect a mechanical oil pressure gauge and verify that the engine has adequate oil pressure.
Refer to SI for additional information if necessary.
4. If the oil pressure is within specification, then remove the left (front) rocker cover and gasket.
Refer to the Valve Rocker Arm Cover Replacement - Left Side in SI.
5. Place shop towels over the rocker arms and push rods to contain engine oil in the next step.
6. Start the engine and allow to idle.
Important:
The following steps only need to be done on the exhaust valves.
7. Using a block of wood or the wooden handle on a hammer, place a side load on cylinder number
2 exhaust valve spring.
^ If the noise is reduced or eliminated, then there is excessive clearance between that exhaust
valve stem and the guide in the cylinder head. Proceed to Step 8.
^ If the noise is NOT reduced or eliminated, then proceed to cylinder number 4 and 6 exhaust valve
springs and apply the same type of side load. If the noise is reduced or eliminated then there is
excessive clearance between an exhaust valve stem and guide in the cylinder head. Proceed to
the next step.
8. Remove the right (rear) rocker cover.
Important:
It may not be possible to apply a side load to the exhaust springs with a piece of wood or hammer
handle because there is less clearance at the rear side of the engine. As a result, the inspection
procedure on the rear side is different than the left (front) side.
9. Remove the rocker arm and push rod from cylinder # 1 exhaust valve.
Important:
With one rocker arm and push rod removed at a time in the next steps the engine will exhibit a
noticeable misfire or rough idle during the test.
10. With shop towels in place to contain any oil, start the engine and allow to idle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Cylinder Head Assembly > Valve, Intake/Exhaust
> Component Information > Technical Service Bulletins > All Technical Service Bulletins for Valve: > 08-06-01-022 > Oct >
08 > Engine - Ticking Noise > Page 3550
^ If the tick noise is reduced or eliminated, then there is excessive clearance between that exhaust
valve stem and guide in the cylinder head. Proceed to Step 11.
^ If the noise is NOT reduced or eliminated, then reinstall the push rod and rocker arm and tighten
the bolt to specification. Then proceed to cylinder number 3, and if necessary number 5, exhaust
valve and repeat the process. If the noise is reduced or eliminated, then there is excessive
clearance between an exhaust valve stem and guide in the cylinder head. Proceed to the next step.
^ If the tick noise is always present and never is reduced or eliminated when testing all 6 exhaust
valves, then the noise is coming from some other source and it is not necessary to continue with
this bulletin. Refer to SI for additional diagnostic information.
11. Replace any cylinder head that has an exhaust valve stem with excessive clearance to the
guide. It will be necessary to install three new exhaust valves in each cylinder head replaced.
Please note that the exhaust valve part number listed below will have an improved stem finish.
Refer to the Cylinder Head Replacement procedure in SI.
Parts Information
Replacement cylinder heads DO NOT come with any valvetrain components or expansion (freeze)
plugs. When ordering a replacement head, it will also be necessary to order 3 exhaust valves and 2
expansion plugs for each head ordered. The intake valves and "all" springs, caps and locks are
reusable. In addition, new valve stem seals (intake and exhaust) will be needed and are included in
the head gasket kit listed.
Warranty Information
For vehicle repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Technical Service Bulletins > Engine - Drive Belt Misalignment Diagnostics
Drive Belt: Technical Service Bulletins Engine - Drive Belt Misalignment Diagnostics
INFORMATION
Bulletin No.: 08-06-01-008A
Date: July 27, 2009
Subject: Diagnosing Accessory Drive Belt / Serpentine Belt Noise and Availability and Use of
Kent-Moore EN-49228 Laser Alignment Tool - Drive Belt
Models:
2010 and Prior GM Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2,
H3 Vehicles 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add a model year and update the Tool Information.
Please discard Corporate Bulletin Number 08-06-01-008 (Section 06 - Engine).
Background
Several aftermarket companies offer laser alignment tools for accessory drive systems that can be
very helpful in eliminating drive belt noise as a result of misaligned pulleys. Typically pricing ranges
from $160 - $200.
EN-49228 Laser Alignment Tool - Drive Belt
The GM Tool program has now made available a competitive, simple to use and time-saving laser
tool to assist in achieving precise alignment of the drive belt pulleys. This optional tool removes the
guesswork from proper pulley alignment and may serve to reduce comebacks from:
- Drive Belt Noise
- Accelerated Drive Belt Wear
- Drive Belt Slippage
Instructions
The instructions below are specific only to the truck Gen IV V-8 family of engines. These
instructions are only for illustrative purposes to show how the tool may be used. Universal
instructions are included in the box with the Laser Alignment Tool - Drive Belt.
Caution
- Do not look directly into the beam projected from the laser.
- Use caution when shining the laser on highly polished or reflective surfaces. Laser safety glasses
help reduce laser beam glare in many circumstances.
- Always use laser safety glasses when using the laser. Laser safety glasses are not designed to
protect eyes from direct laser exposure.
1. Observe and mark the serpentine belt orientation.
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Drive Belt > Component Information > Technical Service Bulletins > Engine - Drive Belt Misalignment Diagnostics > Page
3556
2. Remove the serpentine belt from the accessory drive system.
3. Install the tool onto the power steering pulley. Position the legs of the tool into the outer grooves
of the pulley, farthest from the front of the
engine.
4. Install the retaining cord around the pulley and to the legs of the tool.
5. Put on the laser safety glasses provided with the tool. 6. Depress the switch on the rear of the
tool to activate the light beam. 7. Rotate the power steering pulley as required to project the light
beam onto the crankshaft balancer pulley grooves. 8. Inspect for proper power steering pulley
alignment.
- If the laser beam projects onto the second rib or raised area (1), the pulleys are aligned properly.
- If the laser beam projects more than one-quarter rib 0.9 mm (0.035 in) mis-alignment, adjust the
position of the power steering pulley as required.
- Refer to SI for Power Steering Pulley Removal and Installation procedures.
9. Install the serpentine belt to the accessory drive system in the original orientation.
10. Operate the vehicle and verify that the belt noise concern is no longer present.
Tool Information
Please visit the GM service tool website for pricing information or to place your order for this tool.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Technical Service Bulletins > Engine - Drive Belt Misalignment Diagnostics > Page
3557
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Technical Service Bulletins > Page 3558
Drive Belt: Service Precautions
Belt Dressing Notice
Notice: Do not use belt dressing on the drive belt. Belt dressing causes the breakdown of the
composition of the drive belt. Failure to follow this recommendation will damage the drive belt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Technical Service Bulletins > Page 3559
Drive Belt: Description and Operation
Drive Belt System Description
The drive belt system consists of the following components:
* The drive belt
* The drive belt tensioner
* The drive belt idler pulley
* The crankshaft balancer pulley
* The accessory drive component mounting brackets
* The accessory drive components
- The power steering pump, if belt driven
- The generator
- The A/C compressor, if equipped
- The engine cooling fan, if belt driven
- The water pump, if belt driven
- The vacuum pump, if equipped
- The air compressor, if equipped
The drive belt system may use one belt or two belts. The drive belt is thin so that it can bend
backwards and has several ribs to match the grooves in the pulleys. There also may be a V-belt
style belt used to drive certain accessory drive components. The drive belts are made of different
types of rubbers (chloroprene or EPDM) and have different layers or plys containing either fiber
cloth or cords for reinforcement.
Both sides of the drive belt may be used to drive the different accessory drive components. When
the back side of the drive belt is used to drive a pulley, the pulley is smooth.
The drive belt is pulled by the crankshaft balancer pulley across the accessory drive component
pulleys. The spring loaded drive belt tensioner keeps constant tension on the drive belt to prevent
the drive belt from slipping. The drive belt tensioner arm will move when loads are applied to the
drive belt by the accessory drive components and the crankshaft.
The drive belt system may have an idler pulley, which is used to add wrap to the adjacent pulleys.
Some systems use an idler pulley in place of an accessory drive component when the vehicle is
not equipped with the accessory.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Testing and Inspection > Drive Belt Chirping, Squeal, and Whine Diagnosis
Drive Belt: Testing and Inspection Drive Belt Chirping, Squeal, and Whine Diagnosis
Drive Belt Chirping, Squeal, and Whine Diagnosis
Diagnostic Aids
* A chirping or squeal noise may be intermittent due to moisture on the drive belts or the pulleys. It
may be necessary to spray a small amount of water on the drive belts in order to duplicate the
customers concern. If spraying water on the drive belt duplicates the symptom, cleaning the belt
pulleys may be the probable solution.
* If the noise is intermittent, verify the accessory drive components by varying their loads making
sure they are operated to their maximum capacity. An overcharged A/C system, power steering
system with a pinched hose or wrong fluid, or a generator failing are suggested items to inspect.
* A chirping, squeal or whine noise may be caused by a loose or improper installation of a body or
suspension component. Other items of the vehicle may also cause the noise.
* The drive belts will not cause a whine noise.
Test Description
The numbers below refer to the step numbers on the diagnostic table. 2. The noise may not be
engine related. This step is to verify that the engine is making the noise. If the engine is not making
the noise do not proceed further with this table. 3. The noise may be an internal engine noise.
Removing the drive belts one at a time and operating the engine for a brief period will verify the
noise is related to the drive belt. When removing the drive belt the water pump may not be
operating and the engine may overheat. Also DTCs may set when the engine is operating with the
drive belts removed. 4. Inspect all drive belt pulleys for pilling. Pilling is the small balls or pills or it
can be strings in the drive belt grooves from the accumulation of rubber dust. 6. Misalignment of
the pulleys may be caused from improper mounting of the accessory drive component, incorrect
installation of the accessory drive component pulley, or the pulley bent inward or outward from a
previous repair. Test for a misaligned pulley using a straight edge in the pulley grooves across two
or three pulleys. If a misaligned pulley is found refer to that accessory drive component for the
proper installation procedure for that pulley. 10. Inspecting of the fasteners can eliminate the
possibility that a wrong bolt, nut, spacer, or washer was installed. 12. Inspecting the pulleys for
being bent should include inspecting for a dent or other damage to the pulleys that would prevent
the drive belt from not seating properly in all of the pulley grooves or on the smooth surface of a
pulley when the back side of the belt is used to drive the pulley. 14. This test is to verify that the
drive belt tensioner operates properly. If the drive belt tensioner is not operating properly, proper
belt tension may not be achieved to keep the drive belt from slipping which could cause a squeal
noise. 15. This test is to verify that the drive belt is not too long, which would prevent the drive belt
tensioner from working properly. Also if an incorrect length drive belt was installed, it may not be
routed properly and may be turning an accessory drive component in the wrong direction. 16.
Misalignment of the pulleys may be caused from improper mounting of the accessory drive
component, incorrect installation of the accessory drive component pulley, or the pulley bent inward
or outward from a previous repair. Test for a misaligned pulley using a straight edge in the pulley
grooves across two or three pulleys. If a misaligned pulley is found refer to that accessory drive
component for the proper installation procedure for that pulley. 17. This test is to verify that the
pulleys are the correct diameter or width. Using a known good vehicle compare the pulley sizes.
19. Replacing the drive belt when it is not damaged or there is not excessive pilling will only be a
temporary repair.
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Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Testing and Inspection > Drive Belt Chirping, Squeal, and Whine Diagnosis > Page
3562
Step 1 - Step 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Testing and Inspection > Drive Belt Chirping, Squeal, and Whine Diagnosis > Page
3563
Step 8 - Step 16
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Testing and Inspection > Drive Belt Chirping, Squeal, and Whine Diagnosis > Page
3564
Step 17 - Step 20
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Testing and Inspection > Drive Belt Chirping, Squeal, and Whine Diagnosis > Page
3565
Drive Belt: Testing and Inspection Drive Belt Falls Off and Excessive Wear Diagnosis
Drive Belt Falls Off and Excessive Wear Diagnosis
Diagnostic Aids
If the drive belt repeatedly falls off the drive belt pulleys, this is because of pulley misalignment.
An extra load that is quickly applied on released by an accessory drive component may cause the
drive belt to fall off the pulleys. Verify the accessory drive components operate properly.
If the drive belt is the incorrect length, the drive belt tensioner may not keep the proper tension on
the drive belt.
Excessive wear on a drive belt is usually caused by an incorrect installation or the wrong drive belt
for the application.
Minor misalignment of the drive belt pulleys will not cause excessive wear, but will probably cause
the drive belt to make a noise or to fall off.
Excessive misalignment of the drive belt pulleys will cause excessive wear but may also make the
drive belt fall off.
Test Description
The numbers below refer to the step numbers on the diagnostic table. 2. This inspection is to verify
the condition of the drive belt. Damage may of occurred to the drive belt when the drive belt fell off.
The drive belt may of been damaged, which caused the drive belt to fall off. Inspect the belt for
cuts, tears, sections of ribs missing, or damaged belt plys. 4. Misalignment of the pulleys may be
caused from improper mounting of the accessory drive component, incorrect installation of the
accessory drive component pulley, or the pulley bent inward or outward from a previous repair.
Test for a misaligned pulley using a straight edge in the pulley grooves across two or three pulleys.
If a misaligned pulley is found refer to that accessory drive component for the proper installation
procedure of that pulley. 5. Inspecting the pulleys for being bent should include inspecting for a
dent or other damage to the pulleys that would prevent the drive belt from not seating properly in all
of the pulley grooves or on the smooth surface of a pulley when the back side of the belt is used to
drive the pulley. 6. Accessory drive component brackets that are bent or cracked will let the drive
belt fall off. 7. Inspection of the fasteners can eliminate the possibility that a wrong bolt, nut ,
spacer, or washer was installed. Missing, loose, or the wrong fasteners may cause pulley
misalignment from the bracket moving under load. Over tightening of the fasteners may cause
misalignment of the accessory component bracket. 13. The inspection is to verify the drive belt is
correctly installed on all of the drive belt pulleys. Wear on the drive belt may be caused by
mis-positioning the drive belt by one groove on a pulley. 14. The installation of a drive belt that is
too wide or too narrow will cause wear on the drive belt. The drive belt ribs should match all of the
grooves on all of the pulleys. 15. This inspection is to verify the drive belt is not contacting any
parts of the engine or body while the engine is operating. There should be sufficient clearance
when the drive belt accessory drive components load varies. The drive belt should not come in
contact with an engine or a body component when snapping the throttle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Testing and Inspection > Drive Belt Chirping, Squeal, and Whine Diagnosis > Page
3566
Step 1 - Step 9
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Testing and Inspection > Drive Belt Chirping, Squeal, and Whine Diagnosis > Page
3567
Step 10 - Step 17
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Testing and Inspection > Drive Belt Chirping, Squeal, and Whine Diagnosis > Page
3568
Drive Belt: Testing and Inspection Drive Belt Rumbling and Vibration Diagnosis
Drive Belt Rumbling and Vibration Diagnosis
Diagnostic Aids
The accessory drive components can have an affect on engine vibration. Vibration from the engine
operating may cause a body component or another part of the vehicle to make rumbling noise.
Vibration can be caused by, but not limited to the air conditioning (A/C) system over charged, the
power steering system restricted or the incorrect fluid, or an extra load on the generator. To help
identify an intermittent or an improper condition, vary the loads on the accessory drive components.
The drive belt may have a rumbling condition that can not be seen or felt. Sometimes replacing the
drive belt may be the only repair for the symptom.
If replacing the drive belt, completing the diagnostic table, and the noise is only heard when the
drive belts are installed, there might be an accessory drive component with a failure. Varying the
load on the different accessory drive components may aid in identifying which component is
causing the rumbling noise.
Test Description
The numbers below refer to the step numbers on the diagnostic table. 2. This test is to verify that
the symptom is present during diagnosing. Other vehicle components may cause a similar
symptom. 3. This test is to verify that one of the drive belts is causing the rumbling noise or
vibration. Rumbling noise may be confused with an internal engine noise due to the similarity in the
description. Remove only one drive belt at a time if the vehicle has multiple drive belts. When
removing the drive belts the water pump may not be operating and the engine may overheat. Also
DTCs may set when the engine is operating with the drive belts removed. 4. Inspecting the drive
belts is to ensure that they are not causing the noise. Small cracks across the ribs of the drive belt
will not cause the noise. Belt separation is identified by the plys of the belt separating and may be
seen at the edge of the belt our felt as a lump in the belt. 5. Small amounts of pilling is normal
condition and acceptable. When the pilling is severe the drive belt does not have a smooth surface
for proper operation. 9. Inspecting of the fasteners can eliminate the possibility that the wrong bolt,
nut, spacer, or washer was installed. 11. This step should only be performed if the water pump is
driven by the drive belt. Inspect the water pump shaft for being bent. Also inspect the water pump
bearings for smooth operation and excessive play. Compare the water pump with a known good
water pump. 12. Accessory drive component brackets that are bent, cracked, or loose may put
extra strain on that accessory component causing it to vibrate.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Drive Belt > Component Information > Testing and Inspection > Drive Belt Chirping, Squeal, and Whine Diagnosis > Page
3569
Step 1 - Step 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Drive Belt > Component Information > Testing and Inspection > Drive Belt Chirping, Squeal, and Whine Diagnosis > Page
3570
Step 8 - Step 13
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Testing and Inspection > Page 3571
Drive Belt: Service and Repair
Drive Belt Replacement
Tools Required
J 39914 Serpentine Belt Tensioner Unloader
Removal Procedure
1. Remove the air cleaner assembly.
2. Using J 39914 rotate the drive belt tensioner (8) to release the tension on the drive belt. 3.
Remove the drive belt from the right idler pulley (2). 4. Carefully release J 39914 to relieve the drive
belt tensioner spring tension. 5. Remove J 39914 from the drive belt tensioner (8). 6. Provided the
vehicle will not be raised or lifted to perform additional work. Utilizing a floor jack and a wood block,
support the front of the engine
using the following procedure.
1. Place the wood block between the lift point of the floor jack and the bottom of the engine oil pan.
2. Raise the jack until the wood block comes into contact with the engine oil pan and is capable of
supporting the weight of the engine.
7. If the vehicle is to be raised or lifted in order to perform additional work. Support the engine using
the engine support fixture. 8. Remove the right engine mount.
9. Remove the drive belt from the remaining pulleys.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt > Component Information > Testing and Inspection > Page 3572
1. Install the drive belt to all the pulleys except the right idler pulley. 2. Install the right engine
mount. 3. Depending on which method was used to support the engine. Remove the floor jack from
under the engine oil pan or remove the engine support
fixture.
4. Using J 39914 rotate the drive belt tensioner away from the drive belt. 5. Install the drive belt to
the right idler pulley (2). 6. Carefully release J 39914 allowing the drive belt tensioner (8) to come in
contact with the drive belt. 7. Remove J 39914 from the drive belt tensioner (8). 8. Inspect the drive
belt to insure the belt is properly centered on all pulleys (1-8). 9. Install the air cleaner assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt Tensioner > Component Information > Testing and Inspection
Drive Belt Tensioner: Testing and Inspection
Drive Belt Tensioner Diagnosis
Step 1 - Step 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt Tensioner > Component Information > Testing and Inspection > Page 3576
Drive Belt Tensioner: Service and Repair
Drive Belt Tensioner Replacement
Tools Required
J 39914 Serpentine Belt Tensioner Unloader
Removal Procedure
1. Remove the air cleaner intake duct.
2. Using J 39914 rotate the drive belt tensioner (8) to release the tension on the drive belt. 3.
Remove the drive belt from the right idler pulley (2). 4. Carefully release J 39914 to relieve the drive
belt tensioner spring tension. 5. Remove J 39914 from the drive belt tensioner (8).
6. Loosen the drive belt tensioner bolt. 7. Remove the drive belt tensioner and bolt together from
the generator bracket. 8. Separate the bolt from the drive belt tensioner once removed from
vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Drive Belt Tensioner > Component Information > Testing and Inspection > Page 3577
1. Install the bolt to the drive belt tensioner.
Notice: Refer to Fastener Notice.
2. Install the drive belt tensioner and bolt as an assembly to the generator bracket.
Tighten the bolt to 50 N.m (37 lb ft).
3. Insure the drive belt is properly centered on all the pulleys except the right idler pulley (3). 4.
Using J 39914 rotate the drive belt tensioner away from the drive belt. 5. Install the drive belt to the
right idler pulley (2). 6. Carefully release J 39914 allowing the drive belt tensioner (8) to come in
contact with the drive belt. 7. Remove J 39914 from the drive belt tensioner (8). 8. Inspect the drive
belt to insure the belt is properly centered on all the pulleys (1-8). 9. Install the air cleaner intake
duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Accessory Bracket > Component Information > Service and Repair
Engine Accessory Bracket: Service and Repair
Generator Bracket/Engine Lift Bracket Replacement
Removal Procedure
1. Remove the generator. 2. Remove the drive belt tensioner.
3. Remove the generator bracket bolts. 4. Remove the generator bracket.
Installation Procedure
1. Install the generator bracket.
Notice: Refer to Fastener Notice.
2. Install the generator bracket bolts.
Tighten the generator bracket bolts in the sequence shown to 50 N.m (37 lb ft).
3. Install the drive belt tensioner. 4. Install the generator.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Testing and Inspection
Engine Mount: Testing and Inspection
Engine Mount Inspection
Important: Before replacing any engine mount due to suspected fluid loss, verify that the source of
the fluid is the engine mount, not the engine or accessories.
1. Install the engine support fixture. 2. Observe the engine mount while raising the engine. Raising
the engine removes the weight from the engine mount and creates slight tension on the
rubber.
3. Replace the engine mount if the engine mount exhibits any of the following conditions:
* The hard rubber is covered with heat check cracks.
* The rubber is separated from the metal plate of the engine mount.
* The rubber is split through the center of the engine mount.
* The engine mount itself is leaking fluid.
4. For engine mount replacement. Refer to the following procedures:
* Engine Mount Replacement - Right Side
* Engine Mount Bracket Replacement - Right Side
* Transmission Rear Mount Replacement
* Transmission Mount Replacement - Left Side
* Transmission Rear Mount Bracket Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement
Engine Mount: Service and Repair Engine Front Mount Replacement
Engine Front Mount Replacement
Removal Procedure
1. Raise and support the vehicle.
2. Remove the transmission mount bolt.
3. Remove the transmission mount-to-transmission bolts. 4. Remove the transmission mount from
the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3586
Notice: Refer to Fastener Notice .
1. Install the transmission mount-to-transmission bolts.
Tighten the bolts to 50 N.m (37 lb ft).
2. Install the transmission mount bolt.
Tighten the bolts to 110 N.m (81 lb ft).
3. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3587
Engine Mount: Service and Repair Engine Mount Bracket Replacement - Right
Engine Mount Bracket Replacement - Right Side
Removal Procedure
1. Remove the right engine mount.
2. Remove the engine mount bracket to engine bolts (1-4). 3. Remove the engine mount bracket
from the engine.
Installation Procedure
1. Position the engine mount bracket to the engine.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3588
Notice: Refer to Fastener Notice .
2. Install the engine mount bracket to engine bolts (1-4).
1. Tighten the bolts in locations (1) and (2) to 27 N.m (20 lb ft). 2. Tighten the bolts in locations (3)
and (4) to 55 N.m (41 lb ft).
3. Install the right engine mount.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3589
Engine Mount: Service and Repair Engine Mount Replacement - Right
Engine Mount Replacement - Right Side
Removal Procedure
1. Remove the air cleaner assembly. 2. Support the engine. 3. Raise and support the vehicle.
4. Remove the engine mount to bracket bolts.
5. Remove the engine mount to frame rail nuts. 6. Remove the engine mount from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3590
1. Position the engine mount onto the frame rail studs.
Notice: Refer to Fastener Notice .
2. Install the engine mount to frame rail stud nuts.
Tighten the nuts to 110 N.m (81 lb ft).
3. Install the engine mount to engine mount bracket bolts. Take care when aligning the engine
mount to engine mount bracket bolt holes, while hand
tightening all the bolts.
4. Tighten the engine mount to engine mount bracket bolts.
Tighten the bolts to 50 N.m (81 lb ft).
5. Lower the vehicle. 6. Remove the engine support. 7. Install the air cleaner assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3591
Engine Mount: Service and Repair Engine Support Fixture
Engine Support Fixture
Installation Procedure
Tools Required
* J 28467-B Universal Engine Support Fixture
* J 36462-A Engine Support Adapter Leg Set
* J-28467-13 Engine Support Fixture Adapters
* GM P/N 11519137 4 Studs or equivalent
1. Remove the fuel injector sight shield.
2. Pull each end of the hood rear seal away from the cowl panel flange near both strut towers.
Notice: Refer to Fastener Notice .
3. Replace 2 strut bolts with studs GM P/N 11519137 on right and left sides of the vehicle for
installation of support fixture.
Tighten the studs to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3592
4. Install the J-28467-13 (1) and J 28467-5 strut tower adapter (2) to the top of the right strut tower.
5. Install the J-28467-13 (2) and J 28467-5 strut tower adapter (1) to the top of the left strut tower.
6. Install a 127 cm (50 in) engine support fixture cross bar (2) transversely across the vehicle
between both J 28467-5 strut tower adapters. 7. Insert safety pins (1, 3) through the J 28467-5
strut tower adapters and the cross bar (2) to prevent movement.
Important: If 58 cm (23 in) length engine support cross bar is not available it may be necessary to
remove the vehicle hood for additional clearance if a longer cross bar is to be substituted.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3593
8. Position a 58 cm (23 in) engine support fixture cross bar (1) longitudinally with J 36462-A leg
assembly (3) next to the rear engine lift bracket. 9. Install a J 28467-1A clamp (2) to secure the
longitudinal mounted cross bar to the transverse mounted cross bar.
10. Insert a J 28467-7A lift hook through a J 28467-6 bracket and install a J 28467-34 wing nut.
11. Install the lift hook and bracket assembly (1) to the longitudinal mounted cross bar (2).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3594
12. Position the J 28467-7A lift hook to the rear engine lift bracket (2). 13. Tighten the J 28467-34
wing nut (1) until all free slack is removed from the J 28467-7A bolt hook.
Important: If 58 cm (23 in) length engine support cross bar is not available it may be necessary to
remove the vehicle hood for additional clearance if a longer cross bar is to be substituted.
14. Position a 58 cm (23 in) engine support fixture cross bar (3) longitudinally with J 36462-A leg
assembly (4) next to the front engine lift bracket. 15. Install a J 28467-1A clamp to secure the
longitudinal mounted cross bar to the transverse mounted cross bar.
16. Insert a J 28467-7A lift hook through a J 28467-6 bracket and install a J 28467-34 wing nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3595
17. Install the lift hook and bracket assembly (1) to the longitudinal mounted cross bar (2).
18. Position the J 28467-7A bolt hook (1) to the front engine lift bracket. 19. Tighten the J 28467-34
wing nut (2) until all free slack is removed from the J 28467-7A lift hook (1). 20. Evenly tighten both
wing nuts until the engine weight is supported by the engine support fixture and no longer carried
by the engine mounts.
Notice: Refer to Fastener Notice .
21. After removing the engine support fixture, replace the temporary strut studs with the original
strut bolts.
Tighten the studs to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3596
Engine Mount: Service and Repair
Engine Front Mount Replacement
Engine Front Mount Replacement
Removal Procedure
1. Raise and support the vehicle.
2. Remove the transmission mount bolt.
3. Remove the transmission mount-to-transmission bolts. 4. Remove the transmission mount from
the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3597
Notice: Refer to Fastener Notice .
1. Install the transmission mount-to-transmission bolts.
Tighten the bolts to 50 N.m (37 lb ft).
2. Install the transmission mount bolt.
Tighten the bolts to 110 N.m (81 lb ft).
3. Lower the vehicle.
Engine Mount Bracket Replacement - Right
Engine Mount Bracket Replacement - Right Side
Removal Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3598
1. Remove the right engine mount.
2. Remove the engine mount bracket to engine bolts (1-4). 3. Remove the engine mount bracket
from the engine.
Installation Procedure
1. Position the engine mount bracket to the engine.
Notice: Refer to Fastener Notice .
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3599
2. Install the engine mount bracket to engine bolts (1-4).
1. Tighten the bolts in locations (1) and (2) to 27 N.m (20 lb ft). 2. Tighten the bolts in locations (3)
and (4) to 55 N.m (41 lb ft).
3. Install the right engine mount.
Engine Mount Replacement - Right
Engine Mount Replacement - Right Side
Removal Procedure
1. Remove the air cleaner assembly. 2. Support the engine. 3. Raise and support the vehicle.
4. Remove the engine mount to bracket bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3600
5. Remove the engine mount to frame rail nuts. 6. Remove the engine mount from the vehicle.
Installation Procedure
1. Position the engine mount onto the frame rail studs.
Notice: Refer to Fastener Notice .
2. Install the engine mount to frame rail stud nuts.
Tighten the nuts to 110 N.m (81 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3601
3. Install the engine mount to engine mount bracket bolts. Take care when aligning the engine
mount to engine mount bracket bolt holes, while hand
tightening all the bolts.
4. Tighten the engine mount to engine mount bracket bolts.
Tighten the bolts to 50 N.m (81 lb ft).
5. Lower the vehicle. 6. Remove the engine support. 7. Install the air cleaner assembly.
Engine Support Fixture
Engine Support Fixture
Installation Procedure
Tools Required
* J 28467-B Universal Engine Support Fixture
* J 36462-A Engine Support Adapter Leg Set
* J-28467-13 Engine Support Fixture Adapters
* GM P/N 11519137 4 Studs or equivalent
1. Remove the fuel injector sight shield.
2. Pull each end of the hood rear seal away from the cowl panel flange near both strut towers.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3602
Notice: Refer to Fastener Notice .
3. Replace 2 strut bolts with studs GM P/N 11519137 on right and left sides of the vehicle for
installation of support fixture.
Tighten the studs to 25 N.m (18 lb ft).
4. Install the J-28467-13 (1) and J 28467-5 strut tower adapter (2) to the top of the right strut tower.
5. Install the J-28467-13 (2) and J 28467-5 strut tower adapter (1) to the top of the left strut tower.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3603
6. Install a 127 cm (50 in) engine support fixture cross bar (2) transversely across the vehicle
between both J 28467-5 strut tower adapters. 7. Insert safety pins (1, 3) through the J 28467-5
strut tower adapters and the cross bar (2) to prevent movement.
Important: If 58 cm (23 in) length engine support cross bar is not available it may be necessary to
remove the vehicle hood for additional clearance if a longer cross bar is to be substituted.
8. Position a 58 cm (23 in) engine support fixture cross bar (1) longitudinally with J 36462-A leg
assembly (3) next to the rear engine lift bracket. 9. Install a J 28467-1A clamp (2) to secure the
longitudinal mounted cross bar to the transverse mounted cross bar.
10. Insert a J 28467-7A lift hook through a J 28467-6 bracket and install a J 28467-34 wing nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3604
11. Install the lift hook and bracket assembly (1) to the longitudinal mounted cross bar (2).
12. Position the J 28467-7A lift hook to the rear engine lift bracket (2). 13. Tighten the J 28467-34
wing nut (1) until all free slack is removed from the J 28467-7A bolt hook.
Important: If 58 cm (23 in) length engine support cross bar is not available it may be necessary to
remove the vehicle hood for additional clearance if a longer cross bar is to be substituted.
14. Position a 58 cm (23 in) engine support fixture cross bar (3) longitudinally with J 36462-A leg
assembly (4) next to the front engine lift bracket. 15. Install a J 28467-1A clamp to secure the
longitudinal mounted cross bar to the transverse mounted cross bar.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3605
16. Insert a J 28467-7A lift hook through a J 28467-6 bracket and install a J 28467-34 wing nut.
17. Install the lift hook and bracket assembly (1) to the longitudinal mounted cross bar (2).
18. Position the J 28467-7A bolt hook (1) to the front engine lift bracket. 19. Tighten the J 28467-34
wing nut (2) until all free slack is removed from the J 28467-7A lift hook (1). 20. Evenly tighten both
wing nuts until the engine weight is supported by the engine support fixture and no longer carried
by the engine mounts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3606
Notice: Refer to Fastener Notice .
21. After removing the engine support fixture, replace the temporary strut studs with the original
strut bolts.
Tighten the studs to 25 N.m (18 lb ft).
Powertrain Mount Balance - Lower Mount
Powertrain Mount Balance - Lower Mount
Important: Follow the balance procedure in the order listed in the following steps. Powertrain
mounts must be tightened in sequence.
1. Raise and support the vehicle.
2. Loosen the front mount through bolt. Do not remove.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3607
3. Loosen the rear mount through bolt. Do not remove. 4. Shake the powertrain vigorously from
front to rear and allow the powertrain to settle.
Notice: Refer to Fastener Notice .
5. Tighten the rear motor mount through bolt.
Tighten the bolt to 110 N.m (81 lb ft).
6. Tighten the front motor mount through bolt.
Tighten the bolt to 110 N.m (81 lb ft).
7. Lower the vehicle.
Powertrain Mount Balance - Total Mounts
Powertrain Mount Balance - Total Mounts
Important: Follow the balance procedure in the order listed in the following steps. Powertrain
mounts must be tightened in sequence.
1. Raise and support the vehicle. 2. Position two floor jacks with wood blocks under the engine and
transmission to support the powertrain assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3608
3. From the engine compartment, loosen the transmission mount to transmission bolts.
4. Loosen the engine mount to intermediate bracket bolts.
5. Loosen the front transmission mount through bolt. Do not remove.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3609
6. Loosen the rear transmission mount through bolt. Do not remove. 7. Loosen the rear
transmission mount to cradle bolts. 8. Reposition the floor jacks to allow a 1/8 inch gap between
the mount and mount bracket.
9. Ensure the front transmission mount is centered in the front clevis on the cradle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3610
Notice: Refer to Fastener Notice .
10. Tighten the transmission mount to transmission bolts using the following sequence:
1. Rear bolt 2. Middle bolt 3. Front Bolt
Tighten the bolts to 50 N.m (37 lb ft).
11. Tighten the engine mount to intermediate bracket bolts starting with the center bolt.
Tighten the bolts to 50 N.m (37 lb ft).
12. Ensure the rear transmission mount bracket is seated on the transmission housing. 13. Center
the rear transmission mount in the rear cradle clevis. 14. Tighten the rear transmission mount to
cradle bolts.
Tighten the bolts to 50 N.m (37 lb ft).
15. Remove the floor jacks. 16. Shake the powertrain vigorously from front to rear and allow the
powertrain to settle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Engine Mount > Component Information > Service and Repair > Engine Front Mount Replacement > Page 3611
17. Tighten the rear transmission mount through bolt.
Tighten the bolts to 110 N.m (81 lb ft).
18. Tighten the front transmission mount through bolt.
Tighten the bolts to 110 N.m (81 lb ft).
19. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Idler Pulley > Component Information > Service and Repair > Drive Belt Idler Pulley Replacement - Lower
Idler Pulley: Service and Repair Drive Belt Idler Pulley Replacement - Lower
Drive Belt Idler Pulley Replacement - Lower
Tools Required
J 39914 Serpentine Belt Tensioner Unloader
Removal Procedure
1. Using J 39914 rotate the drive belt tensioner (8) to release the tension on the drive belt. 2.
Remove the drive belt from the right idler pulley (2). 3. Carefully release J 39914 to relieve the drive
belt tensioner spring tension. 4. Remove J 39914 from the drive belt tensioner (8). 5. Raise and
support the vehicle. 6. Remove the right front wheel. 7. Remove the engine splash shield.
8. Loosen the lower belt idler pulley bolt. 9. Remove the lower belt idler pulley and bolt from the
engine front cover.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Idler Pulley > Component Information > Service and Repair > Drive Belt Idler Pulley Replacement - Lower > Page 3616
Notice: Refer to Fastener Notice .
1. Install the lower belt idler pulley and bolt to the engine cover.
Tighten the bolt to 50 N.m (37 lb ft).
2. Install the engine splash shield. 3. Install the right front wheel. 4. Lower the vehicle.
5. Insure the drive belt is properly centered on all the pulleys except the right idler pulley (3). 6.
Using J 39914 rotate the drive belt tensioner away from the drive belt. 7. Install the drive belt to the
right idler pulley (2). 8. Carefully release J 39914 allowing the drive belt tensioner (8) to come in
contact with the drive belt. 9. Remove J 39914 from the drive belt tensioner (8).
10. Inspect the drive belt to insure the belt is properly centered on all the pulleys (1-8).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Idler Pulley > Component Information > Service and Repair > Drive Belt Idler Pulley Replacement - Lower > Page 3617
Idler Pulley: Service and Repair Drive Belt Idler Pulley Replacement - Left Side
Drive Belt Idler Pulley Replacement - Left Side
Tools Required
J 39914 Serpentine Belt Tensioner Unloader
Removal Procedure
1. Remove the air cleaner intake duct.
2. Using J 39914 rotate the drive belt tensioner (8) to release the tension on the drive belt. 3.
Remove the drive belt from the right idler pulley (2). 4. Carefully release J 39914 to relieve the drive
belt tensioner spring tension. 5. Remove J 39914 from the drive belt tensioner (8).
6. Loosen the left belt idler pulley bolt. 7. Remove the left belt idler pulley and bolt from the
generator bracket.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Idler Pulley > Component Information > Service and Repair > Drive Belt Idler Pulley Replacement - Lower > Page 3618
Notice: Refer to Fastener Notice .
1. Install the left belt idler pulley and bolt to the generator bracket.
Tighten the bolt to 50 N.m (37 lb ft).
2. Insure the drive belt is properly centered on all the pulleys except the right idler pulley (3). 3.
Using J 39914 rotate the drive belt tensioner away from the drive belt. 4. Install the drive belt to the
right idler pulley (2). 5. Carefully release J 39914 allowing the drive belt tensioner (8) to come in
contact with the drive belt. 6. Remove J 39914 from the drive belt tensioner (8). 7. Inspect the drive
belt to insure the belt is properly centered on all the pulleys (1-8). 8. Install the air cleaner intake
duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Idler Pulley > Component Information > Service and Repair > Drive Belt Idler Pulley Replacement - Lower > Page 3619
Idler Pulley: Service and Repair Drive Belt Idler Pulley Replacement - Right Side
Drive Belt Idler Pulley Replacement - Right Side
Tools Required
J 39914 Serpentine Belt Tensioner Unloader
Removal Procedure
1. Remove the air cleaner intake duct.
2. Using J 39914 rotate the drive belt tensioner (8) to release the tension on the drive belt. 3.
Remove the drive belt from the right idler pulley (2). 4. Carefully release J 39914 to relieve the drive
belt tensioner spring tension. 5. Remove J 39914 from the drive belt tensioner (8).
6. Loosen the right belt idler pulley bolt. 7. Remove the right belt idler pulley and bolt from the
engine front cover.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Drive Belts, Mounts, Brackets and Accessories >
Idler Pulley > Component Information > Service and Repair > Drive Belt Idler Pulley Replacement - Lower > Page 3620
Notice: Refer to Fastener Notice .
1. Install the right belt idler pulley and bolt to the engine front cover.
Tighten the bolt to 50 N.m (37 lb ft).
2. Insure the drive belt is properly centered on all the pulleys except the right idler pulley (3). 3.
Using J 39914 rotate the drive belt tensioner away from the drive belt. 4. Install the drive belt to the
right idler pulley (2). 5. Carefully release J 39914 allowing the drive belt tensioner (8) to come in
contact with the drive belt. 6. Remove J 39914 from the drive belt tensioner (8). 7. Inspect the drive
belt to insure the belt is properly centered on all the pulleys (1-8). 8. Install the air cleaner intake
duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil Pressure >
Component Information > Specifications
Engine Oil Pressure: Specifications
Oil Pressure - @ 1850 RPM
............................................................................................................................................................
207-241 kPa 30-35 psi
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil Pressure >
Component Information > Specifications > Page 3625
Engine Oil Pressure: Testing and Inspection
Oil Pressure Diagnosis and Testing
Low or No Oil Pressure
The following conditions may cause low or no oil pressure:
* Low oil level Fill to the full mark on the oil level indicator.
* Incorrect or malfunctioning oil pressure switch Replace the oil pressure switch.
* Incorrect or malfunctioning oil pressure gage Replace the oil pressure gage.
* Improper oil viscosity or diluted oil
- Install oil of proper viscosity for expected temperature.
- Install new oil if the oil is diluted.
* A worn or dirty oil pump Clean or replace the oil pump.
* A plugged oil filter Replace the oil filter.
* A loose or plugged oil pickup screen Replace the oil pickup screen.
* A hole in the oil pickup tube Replace the oil pickup tube.
* Excessive bearing clearance Replace the bearings.
* Cracked, porous, or plugged oil gallery Repair or replace the engine block.
* Missing or improperly installed gallery plugs Install or repair the plugs as needed.
* A stuck pressure regulator valve
- Inspect the pressure regulator valve for sticking in the bore.
- Inspect the bore for scoring and burrs.
* A worn or poorly machined camshaft Replace the camshaft.
Oil Pressure Testing
Tools Required
J 25087-C Oil Pressure Tester
If the vehicle has low oil pressure complete the following steps:
1. Inspect the oil level. 2. Raise and support the vehicle. 3. Remove the oil filter. 4. Assemble the
plunger valve in the large hole of the J 25087-C base. Insert the hose in the small hole of the J
25087-C base. Connect the gage to
the end of the hose.
5. Insert the flat side of the rubber plug in the bypass valve without depressing the bypass valve. 6.
Install the J 25087-C on the filter mounting pad. 7. Start the engine. 8. Inspect the overall oil
pressure, the oil pressure switch, and for noisy lifters. Ensure that the engine is at operating
temperature before inspecting
the oil pressure. The oil pressure should be approximately 414 kPa (60 psi) at 1,850 RPM using
5W-30 engine oil.
9. If adequate oil pressure is indicated, test the oil pressure switch.
10. If a low reading is indicated, press the valve on the tester base in order to isolate the oil pump
and/or its components from the lubricating system.
An adequate reading at this time indicates a good pump and the previous low pressure was due to
worn bearings, etc. A low reading while pressing the valve indicates a faulty pump.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil Dip Stick - Dip
Stick Tube > Component Information > Service and Repair
Engine Oil Dip Stick - Dip Stick Tube: Service and Repair
Oil Level Indicator and Tube Replacement
Removal Procedure
1. Remove the oil level indicator (1). 2. Remove the oil level indicator tube bolt (3). 3. Remove the
oil level indicator tube (2).
If you are unable to remove the oil level indicator tube, perform the following steps:
1. Remove the stud in order to allow for lateral movement of the oil level indicator tube. 2. Apply
penetrating oil to the bottom of the oil level indicator tube. 3. Move the oil level indicator tube back
and forth in order to loosen the oil level indicator tube.
Installation Procedure
1. Clean the oil level indicator tube. 2. Apply GM sealant around the oil level indicator tube 12.7
mm (0.50 in) below the bead.
3. Install the oil level indicator tube (2) into the engine block.
Notice: Refer to Fastener Notice .
4. Install the oil level indicator tube bolt (3).
Tighten the bolt to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil Dip Stick - Dip
Stick Tube > Component Information > Service and Repair > Page 3629
5. Install the oil level indicator (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil > Component
Information > Technical Service Bulletins > Engine - GM dexos 1 and dexos 2(R) Oil Specifications
Engine Oil: Technical Service Bulletins Engine - GM dexos 1 and dexos 2(R) Oil Specifications
INFORMATION
Bulletin No.: 11-00-90-001
Date: March 14, 2011
Subject: Global Information for GM dexos1(TM) and GM dexos2(TM) Engine Oil Specifications for
Spark Ignited and Diesel Engines, Available Licensed Brands, and Service Fill for Adding or
Complete Oil Change
Models:
2012 and Prior GM Passenger Cars and Trucks Excluding All Vehicles Equipped with
Duramax(TM) Diesel Engines
GM dexos 1(TM) Information Center Website
Refer to the following General Motors website for dexos 1(TM) information about the different
licensed brands that are currently available: http://www.gmdexos.com
GM dexos 1(TM) Engine Oil Trademark and Icons
The dexos(TM) specification and trademarks are exclusive to General Motors, LLC.
Only those oils displaying the dexos‹›(TM) trademark and icon on the front label meet the
demanding performance requirements and stringent quality standards set forth in the dexos‹›(TM)
specification.
Look on the front label for any of the logos shown above to identify an authorized, licensed dexos
1(TM) engine oil.
GM dexos 1(TM) Engine Oil Specification
Important General Motors dexos 1(TM) engine oil specification replaces the previous General
Motors specifications GM6094M, GM4718M and GM-LL-A-025 for most GM gasoline engines. The
oil specified for use in GM passenger cars and trucks, PRIOR to the 2011 model year remains
acceptable for those previous vehicles. However, dexos 1(TM) is backward compatible and can be
used in those older vehicles.
In North America, starting with the 2011 model year, GM introduced dexos 1(TM) certified engine
oil as a factory fill and service fill for gasoline engines. The reasons for the new engine oil
specification are as follows:
- To meet environmental goals such as increasing fuel efficiency and reducing engine emissions.
- To promote long engine life.
- To minimize the number of engine oil changes in order to help meet the goal of lessening the
industry's overall dependence on crude oil.
dexos 1(TM) is a GM-developed engine oil specification that has been designed to provide the
following benefits:
- Further improve fuel economy, to meet future corporate average fuel economy (CAFE)
requirements and fuel economy retention by allowing the oil to maintain its fuel economy benefits
throughout the life of the oil.
- More robust formulations for added engine protection and aeration performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil > Component
Information > Technical Service Bulletins > Engine - GM dexos 1 and dexos 2(R) Oil Specifications > Page 3634
- Support the GM Oil Life System, thereby minimizing the replacement of engine oil, before its life
has been depleted.
- Reduce the duplication of requirements for a large number of internal GM engine oil
specifications.
International Lubricants Standardization and Approval Committee (ILSAC)
GF-5 Standard
In addition to GM dexos 1(TM), a new International Lubricants Standardization and Approval
Committee (ILSAC) standard called GF-5, was introduced in October 2010.
- There will be a corresponding API category, called: SN Resource Conserving. The current GF-4
standard was put in place in 2004 and will become obsolete in October 2011. Similar to dexos
1(TM), the GF-5 standard will use a new fuel economy test, Sequence VID, which demands a
statistically significant increase in fuel economy versus the Sequence VIB test that was used for
GF-4.
- It is expected that all dexos 1(TM) approved oils will be capable of meeting the GF-5 standard.
However, not all GF-5 engine oils will be capable of meeting the dexos 1(TM) specification.
- Like dexos(TM), the new ILSAC GF-5 standard will call for more sophisticated additives. The API
will begin licensing marketers during October 2010, to produce and distribute GF-5 certified
products, which are expected to include SAE 0W-20, 0W-30, 5W-20, 5W-30 and 10W-30 oils.
Corporate Average Fuel Economy (CAFE) Requirements Effect on Fuel Economy
Since CAFE standards were first introduced in 1974, the fuel economy of cars has more than
doubled, while the fuel economy of light trucks has increased by more than 50 percent. Proposed
CAFE standards call for a continuation of increased fuel economy in new cars and trucks. To meet
these future requirements, all aspects of vehicle operation are being looked at more critically than
ever before.
New technology being introduced in GM vehicles designed to increase vehicle efficiency and fuel
economy include direct injection, cam phasing, turbocharging and active fuel management (AFM).
The demands of these new technologies on engine oil also are taken into consideration when
determining new oil specifications. AFM for example can help to achieve improved fuel economy.
However alternately deactivating and activating the cylinders by not allowing the intake and
exhaust valves to open contributes to additional stress on the engine oil.
Another industry trend for meeting tough fuel economy mandates has been a shift toward lower
viscosity oils.
dexos 1(TM) will eventually be offered in several viscosity grades in accordance with engine needs:
SAE 0W-20, 5W-20, 0W-30 and 5W-30.
Using the right viscosity grade oil is critical for proper engine performance. Always refer to the
Maintenance section of a vehicle Owner Manual for the proper viscosity grade for the engine being
serviced.
GM Oil Life System in Conjunction With dexos (TM) Supports Extended Oil Change Intervals
To help conserve oil while maintaining engine protection, many GM vehicles are equipped with the
GM Oil Life System. This system can provide oil change intervals that exceed the traditional 3,000
mile (4,830 km) recommendation.
The dexos (TM) specification, with its requirements for improved oil robustness, compliments the
GM Oil Life System by supporting extended oil change intervals over the lifetime of a vehicle.
If all GM customers with GM Oil Life System equipped vehicles would use the system as intended,
GM estimates that more than 100 million gallons of oil could be saved annually.
GM dexos 2(TM) Information Center Website
Refer to the following General Motors website for dexos 2(TM) information about the different
licensed brands that are currently available: http://www.gmdexos.com
GM dexos 2(TM) Engine Oil Trademark and Icons
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil > Component
Information > Technical Service Bulletins > Engine - GM dexos 1 and dexos 2(R) Oil Specifications > Page 3635
The dexos (TM) specification and trademarks are exclusive to General Motors, LLC.
Only those oils displaying the dexos (TM) trademark and icon on the front label meet the
demanding performance requirements and stringent quality standards set forth in the dexos
(TM)specification.
Look on the front label for any of the logos shown above to identify an authorized, licensed dexos
2(TM) engine oil.
GM dexos 2(TM) Engine Oil Specification
- dexos 2(TM) is approved and recommended by GM for use in Europe starting in model year 2010
vehicles, regardless of where the vehicle was manufactured.
- dexos 2(TM) is the recommended service fill oil for European gasoline engines.
Important The Duramax(TM) diesel engine is the exception and requires lubricants meeting
specification CJ-4.
- dexos 2(TM) is the recommended service fill oil for European light-duty diesel engines and
replaces GM-LL-B-025 and GM-LL-A-025.
- dexos 2(TM) protects diesel engines from harmful soot deposits and is designed with limits on
certain chemical components to prolong catalyst life and protect expensive emission reduction
systems. It is a robust oil, resisting degradation between oil changes and maintaining optimum
performance longer.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil > Component
Information > Technical Service Bulletins > Engine - GM dexos 1 and dexos 2(R) Oil Specifications > Page 3636
Engine Oil: Technical Service Bulletins Engine - Revised Engine Oil Capacity
INFORMATION
Bulletin No.: 08-06-01-007
Date: March 14, 2008
Subject: Updated Engine Oil Capacity for 3.4L Engine (RPO LNJ)
Models: 2005-2008 Chevrolet Equinox 2006-2008 Pontiac Torrent
with 3.4L V6 Engine (VIN F - RPO LNJ)
The purpose of this bulletin is to update the Engine Oil Capacities for the 3.4L V6 Engine (RPO
LNJ) found in the Chevrolet Equinox and Pontiac Torrent.
The engine oil capacity with an oil filter replacement has been revised to 4.3 L (4.5 qts). The
original capacity was 3.8L (4.0 qts). This revision has been made in the Maintenance and
Lubrication, Approximate Fluid Capacities and Engine Mechanical- 3.4L, Engine Mechanical
Specifications sections of SI. This change also applies to the Owners Manual.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil > Component
Information > Specifications > Capacity Specifications
Engine Oil: Capacity Specifications
This capacity has been updated by TSB 08-06-01-007.
Engine Oil with Filter ............................................................................................................................
............................................... 4.5 quarts (4.3 liters)
NOTE: All capacities are approximate. When adding, be sure to fill to the approximate level.
Recheck fluid level after filling.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil > Component
Information > Specifications > Capacity Specifications > Page 3639
Engine Oil: Fluid Type Specifications
ENGINE OIL TYPE
LOOK FOR TWO THINGS:
1.Your vehicle's engine requires oil meeting GM Standard GM6094M.
2.SAE 5W-30 is best for your vehicle. These numbers on an oil container show its viscosity, or
thickness. Do not use other viscosity oils such as SAE 20W-50. Oils meeting these requirements
should also have the starburst symbol on the container. This symbol indicates that the oil has been
certified by the American Petroleum Institute (API). You should look for this information on the oil
container, and use only those oils that are identified as meeting GM Standard GM6094M and have
the starburst symbol on the front of the oil container.
NOTICE: Use only engine oil identified as meeting GM Standard GM6094M and showing the
American Petroleum Institute Certified For Gasoline Engines starburst symbol. Failure to use the
recommended oil can result in engine damage not covered by your warranty.
GM Goodwrench oil meets all the requirements for your vehicle.
If you are in an area of extreme cold, where the temperature falls below -20°F (-29°C), it is
recommended that you use either an SAE 5W-30 synthetic oil or an SAE 0W-30 oil. Both will
provide easier cold starting and better protection for your engine at extremely low temperatures.
ENGINE OIL ADDITIVES Do not add anything to your oil. The recommended oils with the starburst
symbol that meet GM Standard GM6094M are all you will need for good performance and engine
protection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil > Component
Information > Specifications > Page 3640
Engine Oil: Service and Repair
Engine Oil and Oil Filter Replacement
Removal Procedure
1. Raise and support the vehicle. 2. Position the oil drain pan under the engine oil drain plug.
3. Remove the engine oil drain plug. 4. Clean and inspect the engine oil drain plug, replace if
necessary. 5. Clean and inspect the engine oil drain plug sealing surface on the oil pan, repair or
replace oil pan if necessary.
6. Remove the oil filter. 7. Clean and inspect the oil filter sealing area on the oil filter adapter, repair
or replace if necessary.
Installation Procedure
1. Lightly oil the replacement oil filter gasket with clean oil .
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil > Component
Information > Specifications > Page 3641
Notice: Refer to Component Fastener Tightening Notice .
2. Install the new oil filter.
Tighten the filter to 3/4 to 1 full turn, after the oil filter gasket contacts the oil filter mounting surface.
3. Install the engine oil drain plug.
Tighten the plug to 25 N.m (18 lb ft).
4. Remove the oil drain pan. 5. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil > Component
Information > Specifications > Page 3642
6. Remove the oil fill cap from the rocker arm cover. 7. Fill the engine with new engine oil. 8. Install
the oil fill cap to the rocker arm cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Filter, Engine >
Component Information > Technical Service Bulletins > Engine - Noise/Damage Oil Filter Application Importance
Oil Filter: Technical Service Bulletins Engine - Noise/Damage Oil Filter Application Importance
INFORMATION
Bulletin No.: 07-06-01-016B
Date: July 27, 2009
Subject: Information on Internal Engine Noise or Damage After Oil Filter Replacement
Models:
2010 and Prior Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2, H3
2009 and Prior Saab 9-7X
Supercede: This bulletin is being updated to add model years. Please discard Corporate Bulletin
Number 07-06-01-016A (Section 06 - Engine/Propulsion System).
Important Engine damage that is the result of an incorrect or improperly installed engine oil filter is
not a warrantable claim. The best way to avoid oil filter quality concerns is to purchase ACDelco(R)
oil filters directly from GMSPO.
Oil filter misapplication may cause abnormal engine noise or internal damage. Always utilize the
most recent parts information to ensure the correct part number filter is installed when replacing oil
filters. Do not rely on physical dimensions alone. Counterfeit copies of name brand parts have been
discovered in some aftermarket parts systems. Always ensure the parts you install are from a
trusted source. Improper oil filter installation may result in catastrophic engine damage.
Refer to the appropriate Service Information (SI) installation instructions when replacing any oil
filter and pay particular attention to procedures for proper cartridge filter element alignment. If the
diagnostics in SI (Engine Mechanical) lead to the oil filter as the cause of the internal engine noise
or damage, dealers should submit a field product report. Refer to Corporate Bulletin Number
02-00-89-002I (Information for Dealers on How to Submit a Field Product Report).
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Filter, Engine >
Component Information > Technical Service Bulletins > Page 3647
Oil Filter: Service and Repair
Engine Oil and Oil Filter Replacement
Removal Procedure
1. Raise and support the vehicle. 2. Position the oil drain pan under the engine oil drain plug.
3. Remove the engine oil drain plug. 4. Clean and inspect the engine oil drain plug, replace if
necessary. 5. Clean and inspect the engine oil drain plug sealing surface on the oil pan, repair or
replace oil pan if necessary.
6. Remove the oil filter. 7. Clean and inspect the oil filter sealing area on the oil filter adapter, repair
or replace if necessary.
Installation Procedure
1. Lightly oil the replacement oil filter gasket with clean oil .
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Filter, Engine >
Component Information > Technical Service Bulletins > Page 3648
Notice: Refer to Component Fastener Tightening Notice .
2. Install the new oil filter.
Tighten the filter to 3/4 to 1 full turn, after the oil filter gasket contacts the oil filter mounting surface.
3. Install the engine oil drain plug.
Tighten the plug to 25 N.m (18 lb ft).
4. Remove the oil drain pan. 5. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Filter, Engine >
Component Information > Technical Service Bulletins > Page 3649
6. Remove the oil fill cap from the rocker arm cover. 7. Fill the engine with new engine oil. 8. Install
the oil fill cap to the rocker arm cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Filter Adapter >
Component Information > Service and Repair
Oil Filter Adapter: Service and Repair
Oil Filter Adapter and Bypass Valve Assembly Replacement
Removal Procedure
1. Raise and support the vehicle. 2. Remove the oil filter.
3. Remove the oil filter adapter bolts (2). 4. Remove the oil filter adapter (1) and gasket from the
engine block.
5. Remove the oil filter bypass hole plug.
Important: Do not pry against the threads in the oil filter bypass hole when removing the bypass
valve.
6. Insert a flat-bladed tool into the oil filter bypass hole and force the bypass valve out in order to
remove the bypass valve.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Filter Adapter >
Component Information > Service and Repair > Page 3653
1. Install the oil filter bypass valve (1) to the proper depth.
Notice: Refer to Fastener Notice .
2. Install the oil filter bypass hole plug.
Tighten the plug to 19 N.m (14 lb ft).
3. Install the oil filter adapter (1) and gasket to the engine block. 4. Install the oil filter adapter bolts
(2).
Tighten the bolts to 25 N.m (18 lb ft).
5. Install the oil filter. 6. Lower the vehicle. 7. Fill the engine with NEW engine oil.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pan, Engine >
Component Information > Specifications
Oil Pan: Specifications
Oil Pan Bolt ..........................................................................................................................................
......................................................... 25 N.m 18 lb ft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pan, Engine >
Component Information > Specifications > Page 3657
Oil Pan: Service and Repair
Oil Pan Replacement
Tools Required
J 39505 Torque Wrench Adapter
Removal Procedure
1. Disconnect the battery negative cable 2. Install the engine support fixture. 3. Raise and support
the vehicle. 4. Remove the air conditioning (A/C) compressor.
5. Remove the engine-to-transaxle brace bolts (1, 2). 6. Remove the engine-to-transaxle brace (3).
7. Remove the starter. 8. If equipped with all wheel drive (AWD), remove the transfer case. 9. If
equipped with front wheel drive (FWD), remove the intermediate shaft.
10. Drain the engine oil and remove the oil filter.
11. Remove the oil pan side bolts. 12. Remove the oil pan sealing surface bolts. 13. Remove the oil
pan. 14. Clean the oil pan and the engine block gasket surface.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pan, Engine >
Component Information > Specifications > Page 3658
Important: Provided the rear main bearing cap and engine front cover have not been removed and
provided the sealant on either side of the rear main bearing cap and engine front cover has not
been disturbed, it may not be necessary to apply additional sealant in these locations.
1. Apply sealer to both sides of the crankshaft rear main bearing cap (1) and where the engine front
cover meets the engine block. Press the sealer
into the gap using a putty knife.
2. Install the oil pan gasket. 3. Install the oil pan.
Notice: Refer to Fastener Notice .
4. Install the oil pan flange bolts.
Tighten the bolts to 25 N.m (18 lb ft).
5. Install the oil pan side bolts.
Using J 39505 torque the bolts to 50 N.m (37 lb ft).
6. Install a NEW oil filter 7. If equipped with FWD, install the intermediate shaft. 8. If equipped with
AWD, install the transfer case . 9. Install the starter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pan, Engine >
Component Information > Specifications > Page 3659
10. Install the engine-to-transaxle brace (3). 11. Install the engine-to-transaxle brace bolts (1, 2).
Tighten the bolts to 50 N.m (37 lb ft).
12. Install the A/C compressor. 13. Lower the vehicle. 14. Remove the engine support fixture. 15.
Connect the negative battery cable. 16. Fill the engine with new engine oil.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pressure Sender >
Component Information > Diagrams
Oil Pressure Sender: Diagrams
Displays and Gages Connector End Views
Oil Pressure Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pressure Sensor >
Component Information > Service and Repair
Oil Pressure Sensor: Service and Repair
Engine Oil Pressure Sensor and/or Switch Replacement
Removal Procedure
1. Raise and support the vehicle.
2. Disconnect the oil pressure indicator switch electrical connector (2).
3. Remove the oil pressure indicator switch from the engine block.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pressure Sensor >
Component Information > Service and Repair > Page 3666
1. Apply sealer to the oil pressure indicator switch threads.
Notice: Refer to Component Fastener Tightening Notice.
2. Install the oil pressure indicator switch.
Tighten the switch to 16 N.m (12 lb ft).
3. Connect the oil pressure indicator switch electrical connector (2). 4. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pump, Engine > Engine
Oil Pressure > Component Information > Specifications
Engine Oil Pressure: Specifications
Oil Pressure - @ 1850 RPM
............................................................................................................................................................
207-241 kPa 30-35 psi
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pump, Engine > Engine
Oil Pressure > Component Information > Specifications > Page 3671
Engine Oil Pressure: Testing and Inspection
Oil Pressure Diagnosis and Testing
Low or No Oil Pressure
The following conditions may cause low or no oil pressure:
* Low oil level Fill to the full mark on the oil level indicator.
* Incorrect or malfunctioning oil pressure switch Replace the oil pressure switch.
* Incorrect or malfunctioning oil pressure gage Replace the oil pressure gage.
* Improper oil viscosity or diluted oil
- Install oil of proper viscosity for expected temperature.
- Install new oil if the oil is diluted.
* A worn or dirty oil pump Clean or replace the oil pump.
* A plugged oil filter Replace the oil filter.
* A loose or plugged oil pickup screen Replace the oil pickup screen.
* A hole in the oil pickup tube Replace the oil pickup tube.
* Excessive bearing clearance Replace the bearings.
* Cracked, porous, or plugged oil gallery Repair or replace the engine block.
* Missing or improperly installed gallery plugs Install or repair the plugs as needed.
* A stuck pressure regulator valve
- Inspect the pressure regulator valve for sticking in the bore.
- Inspect the bore for scoring and burrs.
* A worn or poorly machined camshaft Replace the camshaft.
Oil Pressure Testing
Tools Required
J 25087-C Oil Pressure Tester
If the vehicle has low oil pressure complete the following steps:
1. Inspect the oil level. 2. Raise and support the vehicle. 3. Remove the oil filter. 4. Assemble the
plunger valve in the large hole of the J 25087-C base. Insert the hose in the small hole of the J
25087-C base. Connect the gage to
the end of the hose.
5. Insert the flat side of the rubber plug in the bypass valve without depressing the bypass valve. 6.
Install the J 25087-C on the filter mounting pad. 7. Start the engine. 8. Inspect the overall oil
pressure, the oil pressure switch, and for noisy lifters. Ensure that the engine is at operating
temperature before inspecting
the oil pressure. The oil pressure should be approximately 414 kPa (60 psi) at 1,850 RPM using
5W-30 engine oil.
9. If adequate oil pressure is indicated, test the oil pressure switch.
10. If a low reading is indicated, press the valve on the tester base in order to isolate the oil pump
and/or its components from the lubricating system.
An adequate reading at this time indicates a good pump and the previous low pressure was due to
worn bearings, etc. A low reading while pressing the valve indicates a faulty pump.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Intake Manifold > Component Information >
Technical Service Bulletins > Engine - Intake Manifold Inspection/Replacement
Intake Manifold: Technical Service Bulletins Engine - Intake Manifold Inspection/Replacement
INFORMATION
Bulletin No.: 00-06-01-026C
Date: February 03, 2010
Subject: Intake Manifold Inspection/Replacement After Severe Internal Engine Damage
Models:
2010 and Prior Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2, H3
2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to include additional model years. Please discard
Corporate Bulletin Number 00-06-01-026B (Section 06 - Engine).
When replacing an engine due to internal damage, extreme care should be taken when transferring
the intake manifold to the new Goodwrench service engine long block. Internal damage may result
in the potential discharge of internal engine component debris in the intake manifold via broken
pistons and/or bent, broken, or missing intake valves. After removing the intake manifold from the
engine, the technician should carefully inspect all of the cylinder head intake ports to see if the
valve heads are still present and not bent. Usually when the valve heads are missing or sufficiently
bent, internal engine component debris will be present to varying degrees in the intake port of the
cylinder head. If this debris is present in any of the cylinder head intake ports, the intake manifold
should be replaced. This replacement is required due to the complex inlet runner and plenum
configuration of most of the intake manifolds, making thorough and complete component cleaning
difficult and nearly impossible to verify complete removal of debris. Re-installation of an intake
manifold removed from an engine with deposits of internal engine component debris may result in
the ingestion of any remaining debris into the new Goodwrench service engine. This may cause
damage or potential failure of the new service engine.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Intake Manifold > Component Information >
Technical Service Bulletins > Page 3676
Intake Manifold: Specifications
Upper Intake Manifold Bolt/Stud ..........................................................................................................
........................................................ 25 N.m 18 lb ft
Lower Intake Manifold Bolt - Center
First Pass .............................................................................................................................................
...................................................... 7 N.m 62 lb in Final Pass ..............................................................
................................................................................................................................ 13 N.m 115 lb in
Lower Intake Manifold Bolt - Corner
First Pass .............................................................................................................................................
.................................................. 13 N.m 115 lb in Final Pass ..............................................................
................................................................................................................................... 25 N.m 18 lb ft
Throttle Body Bolt/Stud ........................................................................................................................
........................................................ 10 N.m 89 lb in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Intake Manifold > Component Information >
Service and Repair > Lower Intake Manifold Replacement
Intake Manifold: Service and Repair Lower Intake Manifold Replacement
Lower Intake Manifold Replacement
Removal Procedure
1. Drain the cooling system. 2. Remove the upper intake manifold. 3. Remove the heater inlet pipe.
4. Disconnect the radiator inlet hose from the thermostat housing. 5. Remove the fuel rail
assembly.
6. Remove the lower intake manifold bolts. 7. Remove the lower intake manifold from the engine. 8.
If replacing the lower intake manifold, remove the thermostat and housing. 9. Remove the rocker
arms and push rods.
10. Remove the lower intake manifold gaskets.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Intake Manifold > Component Information >
Service and Repair > Lower Intake Manifold Replacement > Page 3679
Important: All gasket mating surfaces must remain free of oil and foreign material. Refer to Sealers,
Adhesives, and Lubricants for the correct part number to use to clean surfaces.
Important: Do not apply room temperature vulcanizing (RTV) sealer to the engine block prior to the
installation of the manifold gaskets. RTV sealer is not to be placed under the lower intake manifold
gaskets.
1. Install the lower intake manifold gaskets. 2. Install the rocker arms and push rods.
3. Install the lower intake manifold seals. 4. With the seals in place, apply a small drop 8-10 mm
(0.31-0.39 in) of RTV sealer. 5. Install the lower intake manifold to the engine.
Notice: Maximum gasket performance is achieved when using new fasteners, which contain a
thread-locking patch. If the fasteners are not
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Intake Manifold > Component Information >
Service and Repair > Lower Intake Manifold Replacement > Page 3680
replaced, a thread locking chemical must be applied to the fastener threads. Failure to replace the
fasteners or apply a thread-locking chemical MAY reduce gasket sealing capability.
Notice: Refer to Fastener Notice.
Important: All lower intake manifold bolts need to be clean, free of foreign materials, and reused
only if new bolts are unavailable. Refer to Sealers, Adhesives, and Lubricants for the correct part
number. Apply to the old intake manifold bolt threads.
Important: Manufacturer recommends the center bolts be fully torqued before the diagonal bolts to
assure proper torque distribution.
Important: Lower intake manifold bolts in locations (6) and (7) should be torqued to specification
using a crows foot type tool.
6. Install the lower intake manifold bolts.
1. Tighten the lower intake manifold bolts in sequence to 13 N.m (115 lb in) on the first pass. 2.
Tighten the lower intake manifold bolts (1, 2, 3, 4) in sequence to 20 N.m (15 lb ft) on the final
pass. 3. Tighten the lower intake manifold bolts (5, 6, 7, 8) in sequence to 25 N.m (18 lb ft) on the
final pass.
7. Install the fuel rail assembly. 8. Connect the radiator inlet hose to the thermostat housing. 9.
Install the heater inlet pipe.
10. Install the upper intake manifold. 11. Fill the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Intake Manifold > Component Information >
Service and Repair > Lower Intake Manifold Replacement > Page 3681
Intake Manifold: Service and Repair Upper Intake Manifold Replacement
Upper Intake Manifold Replacement
Removal Procedure
1. Remove the fuel injector sight shield.
2. Release the clamp (1) from the brake booster vacuum hose connection. 3. Disconnect the brake
booster vacuum hose (2) from the intake manifold.
4. Disconnect the left side spark plug wires (1) from the retainers (2) and from the spark plugs. 5.
Remove the ignition control module bracket from the engine with the ignition control module and
spark plug wires still attached. Position out of
the way.
6. Remove the air cleaner intake duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Intake Manifold > Component Information >
Service and Repair > Lower Intake Manifold Replacement > Page 3682
7. Remove the heater outlet pipe nut (4) from the upper intake manifold. 8. Remove the heater
outlet pipe nuts (2) and bolt (3) from the throttle body. 9. Position the heater outlet pipe out of the
way without disconnecting the heater hoses.
10. Remove the exhaust gas recirculation (EGR) pipe. 11. Remove the positive crankcase
ventilation (PCV) foul air hose.
12. Loosen but do not completely remove the generator attachment bolt most near the intake
manifold.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Intake Manifold > Component Information >
Service and Repair > Lower Intake Manifold Replacement > Page 3683
13. Remove the generator brace nut (2). 14. Remove the generator brace (1).
15. Remove the upper intake manifold bolts (4, 5). 16. Remove the spark plug wire retainer (3). 17.
Remove the upper intake manifold (2). 18. Remove the upper intake manifold gaskets (1). 19. If
replacing the upper intake manifold complete the following steps:
1. Remove the manifold absolute pressure (MAP) sensor. 2. Remove the EGR valve. 3. Remove
the evaporative emissions (EVAP) purge solenoid valve. 4. Remove the throttle body. 5. Remove
the fuel injector sight shield studs.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Intake Manifold > Component Information >
Service and Repair > Lower Intake Manifold Replacement > Page 3684
1. Install the upper intake manifold gaskets (1) to the lower intake manifold and install the fir tree
retainers to retain the upper intake manifold gasket
position.
2. Install the upper intake manifold (2). 3. Install the spark plug wire retainer (3).
Notice: Refer to Fastener Notice.
4. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489) to the bolt threads. Install the
upper intake manifold bolts (4,5).
Tighten the bolts to 25 N.m (18 lb ft).
5. If the upper manifold was replaced, complete the following steps:
1. Install the fuel injector sight shield studs. 2. Install the throttle body. 3. Install the EVAP purge
solenoid valve. 4. Install the EGR valve. 5. Install MAP sensor.
6. Install the generator brace (1). 7. Install the generator brace nut (2).
Tighten the nut to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Intake Manifold > Component Information >
Service and Repair > Lower Intake Manifold Replacement > Page 3685
8. Fully insert the generator attachment bolt most near the intake manifold.
Tighten the bolt to 25 N.m (18 lb ft).
9. Install the PCV foul air hose.
10. Install the EGR pipe.
11. Position the heater outlet pipe to the throttle body and the upper intake manifold. 12. Install the
heater outlet pipe nuts (2) to the throttle body.
Tighten the nut to 10 N.m (89 lb in).
13. Install the heater outlet pipe bolt (3) to the throttle body.
Tighten the bolt to 10 N.m (89 lb in).
14. Install the heater outlet pipe nut (4) to the upper intake manifold.
Tighten the nut to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Intake Manifold > Component Information >
Service and Repair > Lower Intake Manifold Replacement > Page 3686
15. Install the air cleaner intake duct. 16. Install the ignition control module bracket.
17. Connect the left side spark plug wires (1) to the spark plugs and to the spark plug wire
retainers.
18. Connect the brake booster vacuum hose (2) to the intake manifold. 19. Install the clamp (1) to
the brake booster vacuum hose connection. 20. Install the fuel injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > Customer Interest for Crankshaft Main Bearing Seal:
> 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal
Crankshaft Main Bearing Seal: Customer Interest Engine - Oil Leaks from Crankshaft Rear Main
Seal
Bulletin No.: 05-06-01-019F
Date: October 02, 2007
TECHNICAL
Subject: Engine Oil Leak at Crankshaft Rear Main Oil Seal (Install Revised Crankshaft Rear Main
Oil Seal Using Revised Rear Main Seal Installer and Remover Tools)
Models: 1986-2008 GM Passenger Cars and Light Duty Trucks (including Saturn)
with 2.8L, 3.1L, 3.4L, 3.5L, 3.9L 60 Degree V6 Engine (VINs D, E, F, J, K, L, M, N, R, S, T, V, W,
X, Z, 1, 3, 8, 9, W, R - RPOs LG6, LA1, LNJ, LG8, LL1 or LX9, L82, LL2, LB8, LHO, LG5, LB6, LE2
or LQ1, LH7, LC1, L44, LZ4, LZE, LZ9, LGD, LZ8, LZG)
Supercede:
This bulletin is being revised to add an Important statement on proper seal installation. Please
discard Corporate Bulletin Number 05-06-01-019E (Section 06 - Engine/Propulsion System).
This bulletin only applies to 60 degree V6 engines. Some of the discontinued 60 degree V6 engine
VINs and RPOs may have carried over to other new model year engines and may no longer be a
60 degree V6 engine. So this bulletin may not apply. It is very important to verify that the following
information is correct before using this bulletin:
Year of vehicle (e.g. N = 1992)
V6 Engine Liter size (e.g. 3.4L)
VIN CODE (e.g. X)
RPO (e.g. LQ1)
If ALL the information from the vehicle (year, size, VIN Code, RPO) you're working on can be found
under the models listed above, then this bulletin applies to that engine. If one or more of the
vehicle's information can NOT be found under the models listed above, then this bulletin does NOT
apply.
This bulletin does not apply to 2004-2007 Saturn VUE models with 3.5L DOHC V6 Engine (VIN 4 RPO L66) or 2005-2008 Cadillac CTS with 2.8L HFV6 Engine (VIN T - RPO LP1).
Condition
Some customers may comment on external oil leakage.
Correction
Before replacement of the new design crankshaft rear main oil seal, be sure the PCV system is
operating correctly. The new seal described below comes with a protective nylon sleeve already
installed in the seal. This sleeve assures that the seal is installed in the correct direction and also
protects the seal from getting damaged during installation. Do not remove the protective sleeve
from the seal; if removed, the installation tool (EN48108) will not work.
A new design crankshaft rear main oil seal and installation tool (EN-48108) has been released.
This seal incorporates features that improve high mileage durability. Replace the crankshaft rear
main oil seal with the new design rear main oil seal, P/N 12592195, using the following service
procedures.
Tools Required
TOOLS WERE SHIPPED TO YOUR DEALERSHIPS. IF YOU HAVE NOT RECEIVED THEM OR
THEY ARE LOST, PLEASE CALL GM SPECIAL SERVICE TOOLS AT 1-800-GM-TOOLS.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > Customer Interest for Crankshaft Main Bearing Seal:
> 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3696
EN-48108 Rear Main Oil Seal Installation Tool
This tool has a unique design to allow the technician to easily install the rear main seal squarely to
the correct depth and direction. Before proceeding with installation, review the above illustration to
become familiar with the components shown in the illustration.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > Customer Interest for Crankshaft Main Bearing Seal:
> 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3697
EN-48672 rear Main Oil Seal Remover Tool
This tool has a unique design to allow the technician to easily remove the rear main seal without
nicking the crankshaft sealing surface when removing the seal. Before proceeding with removal,
review the above illustration to become familiar with the following components:
Removal Plate
Threaded Adjustment Pins and Jam Nuts
Force Screw
# 2 Self Drill Screws 38 mm (1.5 in) long 8 needed
Extreme Pressure Lubricant
Removal Procedure
Remove the transmission. Refer to Transmission Replacement in SI or the appropriate Service
Manual.
Remove the engine flywheel. Refer to Engine Flywheel Replacement in SI or the appropriate
Service Manual.
Install the removal plate (2) and both threaded adjustment pins and jam nuts (1) into the back of
the crankshaft flange and secure the plate with adjustment pins and jam nuts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > Customer Interest for Crankshaft Main Bearing Seal:
> 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3698
Install # 2 Self Drill Screws 38 mm (1.5 in) long, eight needed, (1) and tighten down flush to the
plate.
Before installing the force screw, apply a small amount of the Extreme Pressure Lubricant J
23444-A, provided in the tool kit.
Install the force screw (1) and back off both jam nuts (2) and continue to turn the force screw (1)
into the removal plate to remove the seal from the crankshaft.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > Customer Interest for Crankshaft Main Bearing Seal:
> 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3699
Once the seal is removed from the crankshaft, remove and save all eight screws and discard the
old seal.
Clean the crankshaft sealing surface with a clean, lint free towel. Inspect the lead-in edge of the
crankshaft for burrs or sharp edges that could damage the rear main oil seal. Remove any burrs or
sharp edges with crocus cloth or equivalent before proceeding.
Installation Procedure
Do not remove the protective nylon sleeve from the new rear main seal prior to installation. The
EN-48108 is designed to install the rear main seal with the protective sleeve in place. Never apply
or use any oil, lubricants or sealing compounds on the crankshaft rear main oil seal.
Align the mandrel dowel pin (EN-48108) to the dowel pin hole in the crankshaft. Refer to the above
illustration.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > Customer Interest for Crankshaft Main Bearing Seal:
> 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3700
Using a large flat-bladed screwdriver, tighten the two mandrel screws to the crankshaft. Ensure that
the mandrel is snug to the crankshaft hub. Refer to the above illustration.
Different types (styles) of rear main seals were used in production in different model years, engines
and manufacturing facilities. As a result, the NEW style rear main seal that you will be installing
may have a different appearance or shape than the one removed. Regardless of what type of seal
was removed and what side was facing outside the engine, the new seal must be installed as
described. Upon close inspection of the outer lip on the new seal, the words this side out" will be
seen. This side of the seal must be facing OUTSIDE the engine when correctly installed. While this
may seem backwards, it is correct. In addition, the protective nylon (plastic) sleeve that the seal is
mounted on in the package was designed so that the seal can only be installed in the proper
direction when using the installation tool described in the following steps.
Install the rear main seal (1), with the protective nylon sleeve attached (2), onto the mandrel. The
seal, if properly installed, will center on a step that protrudes from the center of the mandrel. As an
error proof, seal will fit only one way onto the mandrel. Refer to the above illustration.
Before installing the outer drive drum, bearing, washer and the drive nut onto the threaded shaft,
apply a small amount of the Extreme Pressure Lubricant J 23444-A, provided in the tool kit.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > Customer Interest for Crankshaft Main Bearing Seal:
> 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3701
Install the outer drive drum onto the mandrel (EN-481 08). Install the bearing, washer and the drive
nut onto the threaded shaft. Refer to the above illustration.
Using a wrench, turn the drive nut on the mandrel (EN-48108), which will push the seal into the
engine block bore. Turn the wrench until the drive drum is snug and flush against the engine block.
Refer to the above illustration.
Loosen and remove the drive nut, washer, bearing and drive drum. Discard the protective nylon
sleeve.
Verify that the seal has seated properly.
Use a flat-bladed screwdriver to remove the two attachment screws from the mandrel and remove
the mandrel from the crankshaft hub. Refer to the above illustration.
Install the engine flywheel. Refer to Engine Flywheel Replacement in SI or the appropriate Service
Manual.
Install the transmission. Refer to Transmission Replacement in SI or the appropriate Service
Manual.
Inspect for proper fluid levels.
Inspect for leaks.
Parts Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > Customer Interest for Crankshaft Main Bearing Seal:
> 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3702
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Crankshaft Main
Bearing Seal: > 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal
Crankshaft Main Bearing Seal: All Technical Service Bulletins Engine - Oil Leaks from Crankshaft
Rear Main Seal
Bulletin No.: 05-06-01-019F
Date: October 02, 2007
TECHNICAL
Subject: Engine Oil Leak at Crankshaft Rear Main Oil Seal (Install Revised Crankshaft Rear Main
Oil Seal Using Revised Rear Main Seal Installer and Remover Tools)
Models: 1986-2008 GM Passenger Cars and Light Duty Trucks (including Saturn)
with 2.8L, 3.1L, 3.4L, 3.5L, 3.9L 60 Degree V6 Engine (VINs D, E, F, J, K, L, M, N, R, S, T, V, W,
X, Z, 1, 3, 8, 9, W, R - RPOs LG6, LA1, LNJ, LG8, LL1 or LX9, L82, LL2, LB8, LHO, LG5, LB6, LE2
or LQ1, LH7, LC1, L44, LZ4, LZE, LZ9, LGD, LZ8, LZG)
Supercede:
This bulletin is being revised to add an Important statement on proper seal installation. Please
discard Corporate Bulletin Number 05-06-01-019E (Section 06 - Engine/Propulsion System).
This bulletin only applies to 60 degree V6 engines. Some of the discontinued 60 degree V6 engine
VINs and RPOs may have carried over to other new model year engines and may no longer be a
60 degree V6 engine. So this bulletin may not apply. It is very important to verify that the following
information is correct before using this bulletin:
Year of vehicle (e.g. N = 1992)
V6 Engine Liter size (e.g. 3.4L)
VIN CODE (e.g. X)
RPO (e.g. LQ1)
If ALL the information from the vehicle (year, size, VIN Code, RPO) you're working on can be found
under the models listed above, then this bulletin applies to that engine. If one or more of the
vehicle's information can NOT be found under the models listed above, then this bulletin does NOT
apply.
This bulletin does not apply to 2004-2007 Saturn VUE models with 3.5L DOHC V6 Engine (VIN 4 RPO L66) or 2005-2008 Cadillac CTS with 2.8L HFV6 Engine (VIN T - RPO LP1).
Condition
Some customers may comment on external oil leakage.
Correction
Before replacement of the new design crankshaft rear main oil seal, be sure the PCV system is
operating correctly. The new seal described below comes with a protective nylon sleeve already
installed in the seal. This sleeve assures that the seal is installed in the correct direction and also
protects the seal from getting damaged during installation. Do not remove the protective sleeve
from the seal; if removed, the installation tool (EN48108) will not work.
A new design crankshaft rear main oil seal and installation tool (EN-48108) has been released.
This seal incorporates features that improve high mileage durability. Replace the crankshaft rear
main oil seal with the new design rear main oil seal, P/N 12592195, using the following service
procedures.
Tools Required
TOOLS WERE SHIPPED TO YOUR DEALERSHIPS. IF YOU HAVE NOT RECEIVED THEM OR
THEY ARE LOST, PLEASE CALL GM SPECIAL SERVICE TOOLS AT 1-800-GM-TOOLS.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Crankshaft Main
Bearing Seal: > 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3708
EN-48108 Rear Main Oil Seal Installation Tool
This tool has a unique design to allow the technician to easily install the rear main seal squarely to
the correct depth and direction. Before proceeding with installation, review the above illustration to
become familiar with the components shown in the illustration.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Crankshaft Main
Bearing Seal: > 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3709
EN-48672 rear Main Oil Seal Remover Tool
This tool has a unique design to allow the technician to easily remove the rear main seal without
nicking the crankshaft sealing surface when removing the seal. Before proceeding with removal,
review the above illustration to become familiar with the following components:
Removal Plate
Threaded Adjustment Pins and Jam Nuts
Force Screw
# 2 Self Drill Screws 38 mm (1.5 in) long 8 needed
Extreme Pressure Lubricant
Removal Procedure
Remove the transmission. Refer to Transmission Replacement in SI or the appropriate Service
Manual.
Remove the engine flywheel. Refer to Engine Flywheel Replacement in SI or the appropriate
Service Manual.
Install the removal plate (2) and both threaded adjustment pins and jam nuts (1) into the back of
the crankshaft flange and secure the plate with adjustment pins and jam nuts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Crankshaft Main
Bearing Seal: > 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3710
Install # 2 Self Drill Screws 38 mm (1.5 in) long, eight needed, (1) and tighten down flush to the
plate.
Before installing the force screw, apply a small amount of the Extreme Pressure Lubricant J
23444-A, provided in the tool kit.
Install the force screw (1) and back off both jam nuts (2) and continue to turn the force screw (1)
into the removal plate to remove the seal from the crankshaft.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Crankshaft Main
Bearing Seal: > 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3711
Once the seal is removed from the crankshaft, remove and save all eight screws and discard the
old seal.
Clean the crankshaft sealing surface with a clean, lint free towel. Inspect the lead-in edge of the
crankshaft for burrs or sharp edges that could damage the rear main oil seal. Remove any burrs or
sharp edges with crocus cloth or equivalent before proceeding.
Installation Procedure
Do not remove the protective nylon sleeve from the new rear main seal prior to installation. The
EN-48108 is designed to install the rear main seal with the protective sleeve in place. Never apply
or use any oil, lubricants or sealing compounds on the crankshaft rear main oil seal.
Align the mandrel dowel pin (EN-48108) to the dowel pin hole in the crankshaft. Refer to the above
illustration.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Crankshaft Main
Bearing Seal: > 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3712
Using a large flat-bladed screwdriver, tighten the two mandrel screws to the crankshaft. Ensure that
the mandrel is snug to the crankshaft hub. Refer to the above illustration.
Different types (styles) of rear main seals were used in production in different model years, engines
and manufacturing facilities. As a result, the NEW style rear main seal that you will be installing
may have a different appearance or shape than the one removed. Regardless of what type of seal
was removed and what side was facing outside the engine, the new seal must be installed as
described. Upon close inspection of the outer lip on the new seal, the words this side out" will be
seen. This side of the seal must be facing OUTSIDE the engine when correctly installed. While this
may seem backwards, it is correct. In addition, the protective nylon (plastic) sleeve that the seal is
mounted on in the package was designed so that the seal can only be installed in the proper
direction when using the installation tool described in the following steps.
Install the rear main seal (1), with the protective nylon sleeve attached (2), onto the mandrel. The
seal, if properly installed, will center on a step that protrudes from the center of the mandrel. As an
error proof, seal will fit only one way onto the mandrel. Refer to the above illustration.
Before installing the outer drive drum, bearing, washer and the drive nut onto the threaded shaft,
apply a small amount of the Extreme Pressure Lubricant J 23444-A, provided in the tool kit.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Crankshaft Main
Bearing Seal: > 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3713
Install the outer drive drum onto the mandrel (EN-481 08). Install the bearing, washer and the drive
nut onto the threaded shaft. Refer to the above illustration.
Using a wrench, turn the drive nut on the mandrel (EN-48108), which will push the seal into the
engine block bore. Turn the wrench until the drive drum is snug and flush against the engine block.
Refer to the above illustration.
Loosen and remove the drive nut, washer, bearing and drive drum. Discard the protective nylon
sleeve.
Verify that the seal has seated properly.
Use a flat-bladed screwdriver to remove the two attachment screws from the mandrel and remove
the mandrel from the crankshaft hub. Refer to the above illustration.
Install the engine flywheel. Refer to Engine Flywheel Replacement in SI or the appropriate Service
Manual.
Install the transmission. Refer to Transmission Replacement in SI or the appropriate Service
Manual.
Inspect for proper fluid levels.
Inspect for leaks.
Parts Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Crankshaft Main
Bearing Seal: > 05-06-01-019F > Oct > 07 > Engine - Oil Leaks from Crankshaft Rear Main Seal > Page 3714
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Crankshaft Main
Bearing Seal > Component Information > Technical Service Bulletins > Page 3715
Crankshaft Main Bearing Seal: Service and Repair
Crankshaft Rear Oil Seal Replacement
Removal Procedure
Important: Do not damage the crankshaft or seal bore.
1. Remove the engine flywheel. 2. Remove the crankshaft rear oil seal.
Pry the crankshaft rear oil seal out using a suitable tool.
Installation Procedure
1. Install the rear main seal. 2. Install the engine flywheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Front Crankshaft
Seal > Component Information > Technical Service Bulletins > Customer Interest for Front Crankshaft Seal: > 07-06-01-023
> Dec > 07 > Engine - Oil Leaks From Front Crankshaft Seal
Front Crankshaft Seal: Customer Interest Engine - Oil Leaks From Front Crankshaft Seal
Bulletin No.: 07-06-01-023
Date: December 05, 2007
TECHNICAL
Subject: 60 Degree V6 Engine Oil Leak at Crankshaft Front Oil Seal (Use New Crankshaft Front Oil
Seal Installer Tool EN-48869)
Models: 1986-2008 GM Passenger Cars and Light Duty Trucks (including Saturn)
with 2.8L, 3.1L, 3.4L, 3.5L or 3.9L 60 Degree V6 Engine
(VINs D, E, F, J, K, L, M, N, R, S, T, V, W, X, Z, 1, 3, 8, 9, W, R - RPOs LG6, LA1, LNJ, LG8, LL1
or LX9, L82, LL2, LB8, LHO, LG5, LB6, LE2 or LQ1, LH7, LC1, L44, LZ4, LZE, LZ9, LGD, LZ8,
LZG)
This bulletin does not apply to 2004-2007 Saturn VUE models with 3.5L DOHC V6 Engine (VIN 4 RPO L66) or 2005-2008 Cadillac CTS with 2.8L HFV6 Engine (VIN T - RPO LP1).
This bulletin only applies to 60 degree V6 engines. Some of the discontinued 60 degree V6 engine
VINs and RPOs may have carried over to other new model year engines and may no longer be a
60 degree V6 engine. So this bulletin may not apply. It is very important to verify that the
information shown is correct before using this bulletin.
If ALL the information from the vehicle (year, size, VIN Code, RPO) you're working on can be found
under the models listed above, then this bulletin applies to that engine. If one or more of the
vehicle's information can NOT be found under the models listed above, then this bulletin does NOT
apply.
Condition
Some customers may comment on external oil leakage.
Correction
Before replacement of the crankshaft front oil seal, be sure the PCV system is operating correctly.
Tools Required
TOOLS WERE SHIPPED TO YOUR DEALERSHIPS. IF YOU HAVE NOT RECEIVED THEM OR
THEY ARE LOST, PLEASE CALL GM SPECIAL SERVICE TOOLS AT 1-800-GM-TOOLS.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Front Crankshaft
Seal > Component Information > Technical Service Bulletins > Customer Interest for Front Crankshaft Seal: > 07-06-01-023
> Dec > 07 > Engine - Oil Leaks From Front Crankshaft Seal > Page 3724
The EN-48869 has a unique design to allow the technician to easily install the front crankshaft seal
squarely to the correct depth and direction. Before proceeding with installation, review the
illustration to become familiar with the tool.
Removal Procedure
Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement in SI.
Use care not to damage the engine front cover or nick the crankshaft.
Remove the crankshaft front oil seal (1) using a suitable tool.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Front Crankshaft
Seal > Component Information > Technical Service Bulletins > Customer Interest for Front Crankshaft Seal: > 07-06-01-023
> Dec > 07 > Engine - Oil Leaks From Front Crankshaft Seal > Page 3725
Lubricate the inside of the crankshaft front oil seal (1) with clean engine oil. Then install the seal to
the installer body (2).
Align the oil seal and installer body (1) with the engine front cover and crankshaft.
Before installing the force screw, apply a small amount of the Extreme Pressure Lubricant J
23444-A, provided in the tool kit, to the force screw.
Install the drive nut (4) onto the threaded force screw shaft (5), washer (3), and bearing (2). Then
install to the installer body (1) and tighten the force screw to the crankshaft by hand.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Front Crankshaft
Seal > Component Information > Technical Service Bulletins > Customer Interest for Front Crankshaft Seal: > 07-06-01-023
> Dec > 07 > Engine - Oil Leaks From Front Crankshaft Seal > Page 3726
Using a wrench, turn the drive nut on the threaded force screw shaft (2), this will push the seal into
the engine front cover.
Continue to turn the drive nut (2) with the wrench until the installer body (1) is snug and flush
against the engine front cover.
Loosen and remove the drive nut from the threaded force screw shaft, washer, bearing, and
installer body. Verify that the seal has seated properly, flush against front cover flange (1).
Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement in SI.
Inspect for proper fluid levels.
Inspect for leaks.
Parts Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Front Crankshaft
Seal > Component Information > Technical Service Bulletins > Customer Interest for Front Crankshaft Seal: > 07-06-01-023
> Dec > 07 > Engine - Oil Leaks From Front Crankshaft Seal > Page 3727
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Front Crankshaft
Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Front Crankshaft Seal: >
07-06-01-023 > Dec > 07 > Engine - Oil Leaks From Front Crankshaft Seal
Front Crankshaft Seal: All Technical Service Bulletins Engine - Oil Leaks From Front Crankshaft
Seal
Bulletin No.: 07-06-01-023
Date: December 05, 2007
TECHNICAL
Subject: 60 Degree V6 Engine Oil Leak at Crankshaft Front Oil Seal (Use New Crankshaft Front Oil
Seal Installer Tool EN-48869)
Models: 1986-2008 GM Passenger Cars and Light Duty Trucks (including Saturn)
with 2.8L, 3.1L, 3.4L, 3.5L or 3.9L 60 Degree V6 Engine
(VINs D, E, F, J, K, L, M, N, R, S, T, V, W, X, Z, 1, 3, 8, 9, W, R - RPOs LG6, LA1, LNJ, LG8, LL1
or LX9, L82, LL2, LB8, LHO, LG5, LB6, LE2 or LQ1, LH7, LC1, L44, LZ4, LZE, LZ9, LGD, LZ8,
LZG)
This bulletin does not apply to 2004-2007 Saturn VUE models with 3.5L DOHC V6 Engine (VIN 4 RPO L66) or 2005-2008 Cadillac CTS with 2.8L HFV6 Engine (VIN T - RPO LP1).
This bulletin only applies to 60 degree V6 engines. Some of the discontinued 60 degree V6 engine
VINs and RPOs may have carried over to other new model year engines and may no longer be a
60 degree V6 engine. So this bulletin may not apply. It is very important to verify that the
information shown is correct before using this bulletin.
If ALL the information from the vehicle (year, size, VIN Code, RPO) you're working on can be found
under the models listed above, then this bulletin applies to that engine. If one or more of the
vehicle's information can NOT be found under the models listed above, then this bulletin does NOT
apply.
Condition
Some customers may comment on external oil leakage.
Correction
Before replacement of the crankshaft front oil seal, be sure the PCV system is operating correctly.
Tools Required
TOOLS WERE SHIPPED TO YOUR DEALERSHIPS. IF YOU HAVE NOT RECEIVED THEM OR
THEY ARE LOST, PLEASE CALL GM SPECIAL SERVICE TOOLS AT 1-800-GM-TOOLS.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Front Crankshaft
Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Front Crankshaft Seal: >
07-06-01-023 > Dec > 07 > Engine - Oil Leaks From Front Crankshaft Seal > Page 3733
The EN-48869 has a unique design to allow the technician to easily install the front crankshaft seal
squarely to the correct depth and direction. Before proceeding with installation, review the
illustration to become familiar with the tool.
Removal Procedure
Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement in SI.
Use care not to damage the engine front cover or nick the crankshaft.
Remove the crankshaft front oil seal (1) using a suitable tool.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Front Crankshaft
Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Front Crankshaft Seal: >
07-06-01-023 > Dec > 07 > Engine - Oil Leaks From Front Crankshaft Seal > Page 3734
Lubricate the inside of the crankshaft front oil seal (1) with clean engine oil. Then install the seal to
the installer body (2).
Align the oil seal and installer body (1) with the engine front cover and crankshaft.
Before installing the force screw, apply a small amount of the Extreme Pressure Lubricant J
23444-A, provided in the tool kit, to the force screw.
Install the drive nut (4) onto the threaded force screw shaft (5), washer (3), and bearing (2). Then
install to the installer body (1) and tighten the force screw to the crankshaft by hand.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Front Crankshaft
Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Front Crankshaft Seal: >
07-06-01-023 > Dec > 07 > Engine - Oil Leaks From Front Crankshaft Seal > Page 3735
Using a wrench, turn the drive nut on the threaded force screw shaft (2), this will push the seal into
the engine front cover.
Continue to turn the drive nut (2) with the wrench until the installer body (1) is snug and flush
against the engine front cover.
Loosen and remove the drive nut from the threaded force screw shaft, washer, bearing, and
installer body. Verify that the seal has seated properly, flush against front cover flange (1).
Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement in SI.
Inspect for proper fluid levels.
Inspect for leaks.
Parts Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Front Crankshaft
Seal > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Front Crankshaft Seal: >
07-06-01-023 > Dec > 07 > Engine - Oil Leaks From Front Crankshaft Seal > Page 3736
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Front Crankshaft
Seal > Component Information > Technical Service Bulletins > Page 3737
Front Crankshaft Seal: Service and Repair
Crankshaft Front Oil Seal Replacement
Tools Required
J 35468 Cover Aligner and Seal Installer
Removal Procedure
1. Remove the crankshaft balancer.
2. Pry out the crankshaft front oil seal using a suitable tool. Use care not to damage the engine
front cover or the crankshaft. 3. Inspect the crankshaft, the crankshaft balancer and the engine
front cover for wear and/or damage. Replace the components as necessary.
Installation Procedure
1. Align the J 35468 and the crankshaft front oil seal with the engine front cover and crankshaft. 2.
Install the crankshaft front oil seal using the J 35468 and a suitable tool. 3. Install the crankshaft
balancer.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Valve Guide Seal >
Component Information > Service and Repair
Valve Guide Seal: Service and Repair
Valve Stem Oil Seal and Valve Spring Replacement
Tools Required
* J 22794 Spark Plug Port Adapter
* J 38606 Valve Spring Compressor
Removal Procedure
1. Remove the rocker arm. 2. Remove the spark plug.
Important: Before you remove the valve keys, rotate the engine so that the piston in the cylinder
you are working on is at (TDC) top dead center. This will eliminate the possibility of the valve
accidentally falling inside the cylinder.
3. Install the J 22794 into the spark plug port. Apply compressed air in order to hold the valves in
place.
4. Compress the valve spring with the J 38606 .
5. Remove the valve keys (2). 6. Remove the valve spring cap (3). 7. Remove the valve spring (4).
8. Inspect the valve spring for damage. Replace the spring if it is damaged. 9. Remove the spring
seat/valve stem oil seal (5).
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Seals and Gaskets, Engine > Valve Guide Seal >
Component Information > Service and Repair > Page 3741
1. Install the valve stem oil seal/spring seat (5).
* Use a suitable driver.
* Press over the valve guide boss.
2. Install the valve spring (4). 3. Install the valve spring cap (3).
4. Compress the valve spring using the J 38606 . 5. Install the valve keys. If necessary, hold the
valve keys in place with grease. 6. Remove the J 38606 in order to release the valve spring. 7.
Ensure that the valve keys are seated. 8. Release the air pressure and remove the J 22794 . 9.
Install the valve rocker arm.
10. Install the spark plug.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Sensors and Switches - Engine > Oil Pressure
Sender > Component Information > Diagrams
Oil Pressure Sender: Diagrams
Displays and Gages Connector End Views
Oil Pressure Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Sensors and Switches - Engine > Oil Pressure
Sensor > Component Information > Service and Repair
Oil Pressure Sensor: Service and Repair
Engine Oil Pressure Sensor and/or Switch Replacement
Removal Procedure
1. Raise and support the vehicle.
2. Disconnect the oil pressure indicator switch electrical connector (2).
3. Remove the oil pressure indicator switch from the engine block.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Sensors and Switches - Engine > Oil Pressure
Sensor > Component Information > Service and Repair > Page 3749
1. Apply sealer to the oil pressure indicator switch threads.
Notice: Refer to Component Fastener Tightening Notice.
2. Install the oil pressure indicator switch.
Tighten the switch to 16 N.m (12 lb ft).
3. Connect the oil pressure indicator switch electrical connector (2). 4. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Timing Components > Timing Chain > Component
Information > Service and Repair
Timing Chain: Service and Repair
Timing Chain and Sprockets Replacement
Removal Procedure
1. Remove the engine front cover.
2. Remove the camshaft sprocket bolt. 3. Remove the camshaft sprocket and timing chain.
4. Remove the crankshaft sprocket.
5. Remove the timing chain dampener bolts. 6. Remove the timing chain dampener.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Timing Components > Timing Chain > Component
Information > Service and Repair > Page 3754
1. Install the crankshaft sprocket . 2. Apply prelube GM P/N 12345501 (Canadian P/N 992704) or
the equivalent to the crankshaft sprocket thrust surface.
3. Install the timing chain dampener.
Notice: Refer to Fastener Notice .
4. Install the timing chain dampener bolts.
Tighten the bolt to 21 N.m (15 lb ft).
5. Align the crankshaft timing mark (2) to the timing mark on the bottom of the timing chain
dampener (1). 6. Hold the camshaft sprocket with the timing chain hanging down and install the
timing chain to the crankshaft gear. 7. Align the timing mark on the camshaft gear (4) with the
timing mark on top of the timing chain dampener (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Timing Components > Timing Chain > Component
Information > Service and Repair > Page 3755
8. Align the dowel in the camshaft with the dowel hole in the camshaft sprocket. 9. Draw the
camshaft sprocket onto the camshaft using the mounting bolt.
10. Coat the crankshaft and camshaft sprocket with engine oil.
Tighten the bolt to 140 N.m (103 lb ft).
11. Install the engine front cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Timing Components > Timing Component
Alignment Marks > Component Information > Locations
Timing Component Alignment Marks: Locations
^ Align the crankshaft timing mark (2) to the timing mark on the bottom of the timing chain
dampener (1).
^ Hold the camshaft sprocket with the timing chain hanging down and install the timing chain to the
crankshaft gear.
^ Align the timing mark on the camshaft gear (4) with the timing mark on top of the timing chain
dampener (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Timing Components > Timing Cover > Component
Information > Specifications
Timing Cover: Specifications
Engine Front Cover Bolt
Large Bolt ............................................................................................................................................
.................................................... 55 N.m 41 lb ft Medium Bolt ...........................................................
................................................................................................................................. 55 N.m 41 lb ft
Small Bolt ............................................................................................................................................
.................................................... 27 N.m 20 lb ft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Timing Components > Timing Cover > Component
Information > Specifications > Page 3762
Timing Cover: Service and Repair
Engine Front Cover Replacement
Removal Procedure
1. Disconnect the negative battery cable. 2. Remove the air cleaner assembly. 3. Install the engine
support fixture. 4. Remove the drive belt. 5. Drain the cooling system. 6. Raise and support the
vehicle. 7. Remove the crankshaft balancer. 8. Remove the lower belt idler pulley. 9. Remove the
engine oil pan.
11. Remove the left belt idler pulley.
12. Remove the right engine mount bracket bolts (2-4). 13. Remove the right engine mount bracket
(1). 14. Remove the water pump. 15. Remove the thermostat bypass hose adapter. 16. Remove
the radiator outlet hose from the engine front cover.
17. Remove the engine front cover bolts (2-4). 18. Remove the engine front cover (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Timing Components > Timing Cover > Component
Information > Specifications > Page 3763
19. Remove the engine front cover gasket (1). 20. Clean the engine block and front cover gasket
sealing surfaces.
Installation Procedure
1. Apply sealer to the lower tabs of the engine front cover gasket. Uniformly apply the sealer to
both sides of the gasket lower tabs with the sealant
bead being no less than 5.0 mm (0.20 in) wide as shown. Torque front cover immediately after
installation of sealer coated gasket.
2. Install the gasket (1) to the engine block positioning the gasket on the locating pins (2).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Timing Components > Timing Cover > Component
Information > Specifications > Page 3764
3. Install the engine front cover (1) to the engine block aligning the cover with the locating pins.
Notice: Refer to Fastener Notice .
4. Install the engine front cover bolts (3, 4).
Tighten the bolts to 55 N.m (41 lb ft).
5. Install the engine front cover bolts (2).
Tighten the bolts to 27 N.m (20 lb ft).
6. Install the radiator outlet hose to the engine front cover. 7. Install the thermostat bypass hose
adapter. 8. Install the water pump.
9. Install the right engine mount bracket (1).
10. Install the right engine mount bracket bolts (2-4).
Tighten the bolts to 55 N.m (41 lb ft).
11. Install the engine mount bracket bolts (3).
Tighten the bolts to 25 N.m (18 lb ft).
12. Install the left belt idler pulley. 13. Raise and support the vehicle. 14. Install the engine oil pan.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Timing Components > Timing Cover > Component
Information > Specifications > Page 3765
15. Install the lower belt idler pulley. 16. Install the crankshaft balancer. 17. Lower the vehicle. 18.
Install the drive belt. 19. Remove the engine support fixture. 20. Install the air cleaner assembly.
21. Connect the negative battery cable. 22. Fill the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel
Pressure > System Information > Specifications
Fuel Pressure: Specifications
Fuel Pressure (Key ON, Engine OFF)..................................................................................................
..............................................384-425 kPa (56-62 psi)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel
Pressure > System Information > Specifications > Page 3770
Fuel Pressure: Service Precautions
Relieving Fuel Pressure Caution
Caution: Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel
system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a
small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel
Pressure > System Information > System Diagnosis > Fuel Pressure Gage Installation and Removal
Fuel Pressure: Testing and Inspection Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel
Pressure > System Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 3773
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel
Pressure > System Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 3774
Fuel Pressure: Testing and Inspection Fuel System Diagnosis
FUEL SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
CIRCUIT/SYSTEM DESCRIPTION
The control module enables the fuel pump relay when the ignition switch is turned ON. The control
module will disable the fuel pump relay within 2 seconds unless the control module detects ignition
reference pulses. The control module continues to enable the fuel pump relay as long as ignition
reference pulses are detected. The control module disables the fuel pump relay within 2 seconds if
ignition reference pulses cease to be detected and the ignition remains ON.The fuel system is a
returnless on-demand design. The fuel pressure regulator is a part of the primary fuel tank module,
eliminating the need for a return pipe from the engine. A returnless fuel system reduces the internal
temperature of the fuel tank by not returning hot fuel from the engine to the fuel tank. Reducing the
internal temperature of the fuel tank results in lower evaporative emissions. An electric turbine style
fuel pump attaches to the primary fuel tank module inside the fuel tank. The fuel pump supplies
high pressure fuel through the fuel filter, past the fuel pressure regulator, and through the fuel feed
pipe to the fuel injection system. The fuel pressure regulator has a T-joint that diverts the needed
fuel to the fuel rail with the unused fuel dropping back into the reservoir of the primary fuel tank
module. The primary fuel tank module contains a reverse flow check valve. The check valve and
the fuel pressure regulator maintain fuel pressure in the fuel feed pipe and the fuel rail in order to
prevent long cranking times. The primary fuel tank module also contains a primary jet pump and a
secondary jet pump. Fuel pump flow loss, caused by vapor expulsion in the pump inlet chamber, is
diverted to the primary jet pump and the secondary jet pump through a restrictive orifice located on
the pump cover. The primary jet pump fills the reservoir of the primary fuel tank module. The
secondary jet pump creates a venturi action which causes the fuel to be drawn from the secondary
side of the fuel tank, through the fuel transfer pipe, to the primary side of the fuel tank.
CIRCUIT/SYSTEM VERIFICATION
IMPORTANT: Inspect the fuel system for damage or external leaks before proceeding.
- Verify that adequate fuel is in the fuel tank before proceeding.
- The fuel pump relay may need to be commanded ON a few times in order to obtain the highest
possible fuel pressure.
- Before proceeding with this test review the User Manual CH 48027-5 for Safety Information and
Instructions.
1. Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool. You should hear
the fuel pump turn ON and OFF.
- If the fuel pump does not operate, refer to Fuel Pump Electrical Circuit Diagnosis. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Component Tests and
General Diagnostics
2. Ignition OFF, all accessories OFF, install a CH-48027. 3. Ignition ON, engine OFF, command the
fuel pump relay ON with a scan tool. Verify the fuel pressure is between 384-425 kPa (56-62 psi)
and
does not decrease more than 34 kPa (5 psi) in 1 minute.
CIRCUIT/SYSTEM TESTING
1. IMPORTANT:
- The fuel pump relay may need to be commanded ON a few times in order to obtain the highest
possible fuel pressure.
- DO NOT start the engine.
Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool and observe the fuel
pressure gage while the fuel pump is operating. Verify the fuel pressure is between 384-425 kPa
(56-62 psi). If the fuel pressure is greater than the specified range, replace the fuel pump module.
- If the fuel pressure is less than the specified range, test, inspect, and repair the items listed
below. If all items test normal, replace the fuel pump module.
- Restricted fuel feed pipe
- Restricted or plugged strainer
- Inspect the harness connectors and the ground circuits of the fuel pump for poor connections.
2. Verify that the fuel pressure does not decrease more than 34 kPa (5 psi) in 1 minute.
1. If the fuel pressure decreases more than the specified value, perform the following procedure: 2.
Ignition OFF, relieve the fuel pressure. Refer to Fuel Pressure Relief. See: Fuel Filter/Fuel
Pressure Release/Service and Repair 3. Install the J 37287 between the fuel feed pipe and the fuel
rail. 4. Open the valve on the J 37287. 5. Ignition ON, command the fuel pump relay ON with a
scan tool and bleed the air from the CH-48027. 6. Command the fuel pump relay ON and then OFF
with a scan tool. 7. Close the valve on the J 37287. 8. Monitor the fuel pressure for 1 minute.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel
Pressure > System Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 3775
- If the fuel pressure decreases more than 34 kPa (5 psi) within the specified time, locate and
replace the leaking fuel injector(s).
- If the fuel pressure does not decrease more than 34 kPa (5 psi) within the specified time, replace
the fuel pump module.
3. Relieve the fuel pressure to 69 kPa (10 psi). Verify that the fuel pressure does not decrease
more than 14 kPa (2 psi) in 5 minutes.
- If the fuel pressure decreases more than the specified value, replace the primary fuel pump
module.
4. Operate the vehicle within the conditions of the customer's concern while monitoring the fuel
pressure with the CH-48027. The fuel pressure
should not drop off during acceleration, cruise or hard cornering. If the fuel pressure drops off, test, inspect, and repair the items listed below. If all items test normal,
replace the primary fuel pump module.
- Restricted fuel feed pipe
- Restricted or plugged strainer
- Inspect the harness connectors and the ground circuits of the fuel pump for poor connections
5. If the fuel system tests normal, refer to Symptoms - Computers and Control Systems. See:
Powertrain Management/Computers and Control
Systems/Testing and Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine
Controls
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Fuel Hose/Pipes Replacement - Chassis
- Fuel Injector Replacement
- Fuel Hose/Pipes Replacement - Engine Compartment
- Primary Fuel Tank Module Replacement See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests and Procedures
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Idle
Speed > System Information > Specifications
Idle Speed: Specifications
Information not supplied by the manufacturer.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Air
Cleaner Housing > Air Cleaner Fresh Air Duct/Hose > Component Information > Service and Repair
Air Cleaner Fresh Air Duct/Hose: Service and Repair
AIR CLEANER INLET DUCT REPLACEMENT
REMOVAL PROCEDURE
1. Loosen the clamps at both ends of the air cleaner intake duct. 2. Remove the positive crankcase
ventilation (PCV) fresh air pipe from the air cleaner intake duct. 3. Remove the air cleaner intake
duct from the mass air flow (MAF) sensor and throttle body.
INSTALLATION PROCEDURE
1. Install the air cleaner intake duct to the MAF sensor and throttle body. 2. Install the PCV fresh air
pipe to the air cleaner intake duct.
3. NOTE: Refer to Fastener Notice.
Tighten the clamps at both ends of the air cleaner intake duct.
Tighten the clamps to 4 N.m (35 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Air
Cleaner Housing > Air Filter Element > Component Information > Technical Service Bulletins > Customer Interest for Air
Filter Element: > 04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON
Air Filter Element: Customer Interest Engine, A/T - Shift/Driveability Concerns/MIL ON
Bulletin No.: 04-07-30-013B
Date: February 01, 2007
INFORMATION
Subject: Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon
(SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air
Filter
Models: 2007 and Prior GM Cars and Light Duty Trucks 2007 and Prior Saturn Models 2003-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 04-07-30-013A (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
Service Engine Soon (SES) light on
Transmission shift concerns, slipping and damaged clutch(es) or band(s)
Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF)
sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from
the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an
aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared
to a like vehicle with an OEM air box and filter under the same driving conditions to verify the
concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and
the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with
oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not
considered to be warrantable repair items.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Air
Cleaner Housing > Air Filter Element > Component Information > Technical Service Bulletins > Customer Interest for Air
Filter Element: > 04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON > Page 3791
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Air
Cleaner Housing > Air Filter Element > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Air Filter Element: > 04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON
Air Filter Element: All Technical Service Bulletins Engine, A/T - Shift/Driveability Concerns/MIL ON
Bulletin No.: 04-07-30-013B
Date: February 01, 2007
INFORMATION
Subject: Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon
(SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air
Filter
Models: 2007 and Prior GM Cars and Light Duty Trucks 2007 and Prior Saturn Models 2003-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 04-07-30-013A (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
Service Engine Soon (SES) light on
Transmission shift concerns, slipping and damaged clutch(es) or band(s)
Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF)
sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from
the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an
aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared
to a like vehicle with an OEM air box and filter under the same driving conditions to verify the
concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and
the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with
oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not
considered to be warrantable repair items.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Air
Cleaner Housing > Air Filter Element > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Air Filter Element: > 04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON > Page
3797
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Air
Cleaner Housing > Air Filter Element > Component Information > Technical Service Bulletins > Page 3798
Air Filter Element: Service and Repair
AIR CLEANER ELEMENT REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Release the clamps (2) on the side of the air cleaner assembly. 4. Remove the air cleaner
assembly lid (1) by tilting to release the lid from the lower housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Air
Cleaner Housing > Air Filter Element > Component Information > Technical Service Bulletins > Page 3799
5. Remove the air cleaner element (2) from the lower housing (1).
INSTALLATION PROCEDURE
1. Install the air cleaner element (2) into the lower housing (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Air
Cleaner Housing > Air Filter Element > Component Information > Technical Service Bulletins > Page 3800
2. Install the air cleaner assembly lid (1) by first engaging the hinge then lower the cover into the
closed position. 3. Fasten the clamps (2) on the side of the air cleaner assembly.
4. Connect the MAF sensor electrical connector. 5. Install the air cleaner intake duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel
Filter > Fuel Pressure Release > System Information > Service and Repair > Fuel Pressure Relief
Fuel Pressure Release: Service and Repair Fuel Pressure Relief
FUEL PRESSURE RELIEF
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
WITH CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Remove the engine cover, if required. 2. Loosen the fuel fill cap in order to relieve the fuel tank
vapor pressure. 3. Remove the fuel rail service port cap.
4. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel will
absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
5. Connect the CH-48027-3 (4) to the fuel rail service port. 6. Connect the CH-48027-2 (2) to the
CH-48027-3 (4). 7. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 8.
Open the valve on the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 9. Close the
valve on the CH-48027-2 (2).
10. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
IMPORTANT: If relieving the fuel pressure for the fuel pressure gage installation and removal, it is
NOT necessary to proceed with the following steps.
11. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel
Filter > Fuel Pressure Release > System Information > Service and Repair > Fuel Pressure Relief > Page 3806
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-2 (2) from the CH-48027-3 (4).
12. Disconnect the CH-48027-3 (4) from the fuel rail service port. 13. Remove the shop towel from
around the fuel rail service port, and place in an approved gasoline container. 14. Install the fuel rail
service port cap. 15. Install the engine cover, if required. 16. Tighten the fuel fill cap.
WITHOUT CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure. 2. Remove the engine
cover, if required. 3. Remove the fuel rail service port cap. 4. Wrap a shop towel around the fuel rail
service port and using a small flat bladed tool, depress (open) the fuel rail test port valve. 5.
Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container. 6. Install the fuel rail service port cap. 7. Install the engine cover, if required. 8. Tighten
the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel
Filter > Fuel Pressure Release > System Information > Service and Repair > Fuel Pressure Relief > Page 3807
Fuel Pressure Release: Service and Repair Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel
Filter > Fuel Pressure Release > System Information > Service and Repair > Fuel Pressure Relief > Page 3808
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Ignition Cable > Component Information > Specifications
Ignition Cable: Specifications
Spark Plug Wire Resistance.................................................................................................................
......................4,018 ohm per meter (1,225 ohm per ft)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Ignition Cable > Component Information > Specifications > Page 3812
Ignition Cable: Testing and Inspection
SPARK PLUG WIRE INSPECTION
Spark plug wire integrity is vital for proper engine operation. A thorough inspection will be
necessary to accurately identify conditions that may affect engine operation. Refer to the list below
for items to be inspected.
1. Inspect for correct routing of the spark plug wires. Improper routing may cause cross-firing. 2.
Inspect each wire for any signs of cracks or splits in the wire. 3. Inspect each boot for the following
conditions:
- Tearing
- Piercing
- Arcing
- Carbon tracking
- Corroded terminal\
If corrosion, carbon tracking, or arcing are indicated on a spark plug wire boot or terminal, both the
wire and the component connected to the wire should be replaced.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Ignition Cable > Component Information > Specifications > Page 3813
Ignition Cable: Service and Repair
SPARK PLUG WIRE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. NOTE: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug
boot only. Do not pull on the spark plug wire
or the wire could be damaged.
Remove the spark plug wires (1) from the left side spark plugs.
3. Remove the spark plug wires from the retaining clips (2).
4. Remove the spark plug wires (1) from the right side spark plugs. 5. Remove the spark plug wires
from the retaining clips (2). 6. Remove the spark plug wires from the ignition coil/control module. 7.
Remove the spark plug wires from the engine. 8. If you are replacing the spark plug wires, transfer
any of the following components:
- Boot heat shields
- Spark plug wire conduit
- Spark plug wire retaining clips
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Ignition Cable > Component Information > Specifications > Page 3814
INSTALLATION PROCEDURE
1. Install the spark plug wires (1) to the ignition coil/control module. 2. Install the spark plug wires
(1) to the right side spark plugs. 3. Install the spark plug wires to the retaining clips (2).
4. Install the spark plug wires (1) to the left side spark plugs. 5. Install the spark plug wires to the
retaining clips (2). 6. Install the injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension
Technical Service Bulletin # 10250 Date: 110131
Campaign - Spark Plug Wire Warranty Extension
SPECIAL COVERAGE
Bulletin No.: 10250
Date: January 31, 2011
Subject: 10250 - Special Coverage Adjustment - Spark Plug Wire Warranty Extension
Models:
2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped with a 3.4L Engine (LNJ) 2008
Chevrolet Express, Silverado 2008 GMC Savana, Sierra Equipped with 4.3L Engine (LU3)
Condition
Some customers of 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles
equipped with a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra
vehicles equipped with a 4.3L engine (LU3) may comment about rough engine operation and the
illumination of the Check Engine Light. This may be caused by spark plug wire boots that do not
provide a sufficiently robust dielectric seal to withstand the high voltage required to fire the spark
plugs.
Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000
miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in
service, regardless of ownership. Dealers are to replace all spark plug wires and, if necessary, the
spark plug. The repairs will be made at no charge to the customer. For vehicles covered by Vehicle
Service Contracts, all eligible claims with repair orders on or after January 5, 2011, are covered by
this special coverage and must be submitted using the labor operation codes provided with this
bulletin. Claims with repair orders prior to January 5, 2011, must be submitted to the Service
Contract provider.
Vehicles Involved
Involved are 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with
a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra vehicles
equipped with a 4.3L engine (LU3).
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate
Vehicle History (GMVIS2) Application in the Applicable Warranties section. Dealership technicians
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs.
Parts Information
Parts required to complete this special coverage are to be obtained from General Motors Customer
Care and Aftersales (GMCC&A;).
* Not eligible for RIM initially for US and Canada, until sufficient inventory levels are reached.
Service Procedure
1. Connect a scan tool and start the engine. 2. Determine if any cylinders have a misfire condition.
- If a misfire condition is present or diagnostic trouble codes (DTCs) PO300-PO306 are current or
set in history, remove all of the spark plug wires and replace them with new spark plug wire set.
Refer to Spark Plug Wire Replacement in SI. Proceed to Step 3.
- If a misfire condition is NOT present in any cylinder, do NOT replace the spark plug wires. Refer
to the appropriate diagnostic information in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension > Page 3823
SI to determine the cause of the problem. Repairs that are not related to this Special Coverage
must be billed as warranty, customer pay, or goodwill.
3. Remove the spark plug from the misfiring cylinder. The spark plug should have evidence of
carbon tracking (1). Replace the spark plug that shows
evidence of carbon tracking. Refer to Spark Plug Replacement in SI.
4. Clear DTCs using a scan tool.
Customer Reimbursement - For US
All customer requests for reimbursement for previous repairs for the special coverage condition will
be handled by the Customer Assistance Center, not by dealers.
A General Motors Customer Reimbursement Procedure and Claim Form is included with the
customer letter.
Important Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific
procedures regarding customer reimbursement and the form.
Customer Reimbursement - For Canada and Export
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer prior to or by January 31, 2012. Repairs must have
occurred within the 10 years of the date the vehicle was originally placed in service, or 193,000
kilometers, whichever occurs first.
When a customer requests reimbursement, they must provide the following:
- Proof of ownership at time of repair.
- Original paid receipt confirming the amount of unreimbursed repair expense(s) (including Service
Contract deductibles), a description of the repair, and the person or entity performing the repair.
If the work was done by someone other than a GM dealership, the amount of reimbursement will
be limited to the amount that the repair would have cost GM to have it completed by a GM
dealership.
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Warranty Transaction Information
Submit a transaction using the table below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension > Page 3824
* The amount identified in "Net Item" should represent the dollar amount reimbursed to the
customer.
Customer Notification
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
Disclaimer
Owner Letter
Owner Letter
January 2011
Dear General Motors Customer:
As the owner of a 2007-2009 model year Chevrolet Equinox or Pontiac Torrent vehicle, or a 2008
Chevrolet Express, Silverado; GMC Savana or Sierra vehicle, your satisfaction with our product is
very important to us.
This letter is intended to make you aware that some 2007-2009 model year Chevrolet Equinox and
Pontiac Torrent vehicles, and some 2008 Chevrolet Express, Silverado; GMC Savana, and Sierra
vehicles may exhibit rough engine operation and the illumination of the Check Engine Light. This
may be caused by spark plug wire boots that do not provide a sufficiently robust dielectric seal to
withstand the high voltage required to fire the spark plugs.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your
vehicle has the condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the spark
plug wires. If this condition occurs on your 2007-2009 model year Chevrolet Equinox or Pontiac
Torrent vehicle, or 2008 Chevrolet Express, Silverado; GMC Savana or Sierra vehicle within 10
years of the date your vehicle was originally placed in service or 120,000 miles (193.000 km),
whichever occurs first, the condition will be repaired for you at no charge. Diagnosis or repair for
conditions other than the condition described above is not covered under this special coverage
program.
What You Should Do: If you believe that your vehicle has the condition described above, repairs
and adjustments qualifying under this special coverage must be performed by a General Motors
dealer. You may want to contact your GM dealer to find out how long they will need to have your
vehicle so that you may schedule the appointment at a time that is convenient for you. This will also
allow your dealer to order parts if they are not already in stock. Keep this letter with your other
important glove box literature for future reference.
Reimbursement: The enclosed form explains what reimbursement is available and how to request
reimbursement if you have paid for repairs for the special coverage condition. Your request for
reimbursement, including the information and documents mentioned on the enclosed form, must be
received by GM by January 31, 2012. If you have any questions or need any assistance to better
understand related repairs, please contact your dealer.
If you have questions related to a potential reimbursement, please contact the appropriate
Customer Assistance Center at the number listed below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension > Page 3825
We are sorry for any inconvenience you may experience; however we have taken this action in the
interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
10250
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250
> Jan > 11 > Campaign - Spark Plug Wire Warranty Extension
Technical Service Bulletin # 10250 Date: 110131
Campaign - Spark Plug Wire Warranty Extension
SPECIAL COVERAGE
Bulletin No.: 10250
Date: January 31, 2011
Subject: 10250 - Special Coverage Adjustment - Spark Plug Wire Warranty Extension
Models:
2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped with a 3.4L Engine (LNJ) 2008
Chevrolet Express, Silverado 2008 GMC Savana, Sierra Equipped with 4.3L Engine (LU3)
Condition
Some customers of 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles
equipped with a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra
vehicles equipped with a 4.3L engine (LU3) may comment about rough engine operation and the
illumination of the Check Engine Light. This may be caused by spark plug wire boots that do not
provide a sufficiently robust dielectric seal to withstand the high voltage required to fire the spark
plugs.
Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000
miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in
service, regardless of ownership. Dealers are to replace all spark plug wires and, if necessary, the
spark plug. The repairs will be made at no charge to the customer. For vehicles covered by Vehicle
Service Contracts, all eligible claims with repair orders on or after January 5, 2011, are covered by
this special coverage and must be submitted using the labor operation codes provided with this
bulletin. Claims with repair orders prior to January 5, 2011, must be submitted to the Service
Contract provider.
Vehicles Involved
Involved are 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with
a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra vehicles
equipped with a 4.3L engine (LU3).
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate
Vehicle History (GMVIS2) Application in the Applicable Warranties section. Dealership technicians
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs.
Parts Information
Parts required to complete this special coverage are to be obtained from General Motors Customer
Care and Aftersales (GMCC&A;).
* Not eligible for RIM initially for US and Canada, until sufficient inventory levels are reached.
Service Procedure
1. Connect a scan tool and start the engine. 2. Determine if any cylinders have a misfire condition.
- If a misfire condition is present or diagnostic trouble codes (DTCs) PO300-PO306 are current or
set in history, remove all of the spark plug wires and replace them with new spark plug wire set.
Refer to Spark Plug Wire Replacement in SI. Proceed to Step 3.
- If a misfire condition is NOT present in any cylinder, do NOT replace the spark plug wires. Refer
to the appropriate diagnostic information in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250
> Jan > 11 > Campaign - Spark Plug Wire Warranty Extension > Page 3831
SI to determine the cause of the problem. Repairs that are not related to this Special Coverage
must be billed as warranty, customer pay, or goodwill.
3. Remove the spark plug from the misfiring cylinder. The spark plug should have evidence of
carbon tracking (1). Replace the spark plug that shows
evidence of carbon tracking. Refer to Spark Plug Replacement in SI.
4. Clear DTCs using a scan tool.
Customer Reimbursement - For US
All customer requests for reimbursement for previous repairs for the special coverage condition will
be handled by the Customer Assistance Center, not by dealers.
A General Motors Customer Reimbursement Procedure and Claim Form is included with the
customer letter.
Important Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific
procedures regarding customer reimbursement and the form.
Customer Reimbursement - For Canada and Export
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer prior to or by January 31, 2012. Repairs must have
occurred within the 10 years of the date the vehicle was originally placed in service, or 193,000
kilometers, whichever occurs first.
When a customer requests reimbursement, they must provide the following:
- Proof of ownership at time of repair.
- Original paid receipt confirming the amount of unreimbursed repair expense(s) (including Service
Contract deductibles), a description of the repair, and the person or entity performing the repair.
If the work was done by someone other than a GM dealership, the amount of reimbursement will
be limited to the amount that the repair would have cost GM to have it completed by a GM
dealership.
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Warranty Transaction Information
Submit a transaction using the table below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250
> Jan > 11 > Campaign - Spark Plug Wire Warranty Extension > Page 3832
* The amount identified in "Net Item" should represent the dollar amount reimbursed to the
customer.
Customer Notification
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
Disclaimer
Owner Letter
Owner Letter
January 2011
Dear General Motors Customer:
As the owner of a 2007-2009 model year Chevrolet Equinox or Pontiac Torrent vehicle, or a 2008
Chevrolet Express, Silverado; GMC Savana or Sierra vehicle, your satisfaction with our product is
very important to us.
This letter is intended to make you aware that some 2007-2009 model year Chevrolet Equinox and
Pontiac Torrent vehicles, and some 2008 Chevrolet Express, Silverado; GMC Savana, and Sierra
vehicles may exhibit rough engine operation and the illumination of the Check Engine Light. This
may be caused by spark plug wire boots that do not provide a sufficiently robust dielectric seal to
withstand the high voltage required to fire the spark plugs.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your
vehicle has the condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the spark
plug wires. If this condition occurs on your 2007-2009 model year Chevrolet Equinox or Pontiac
Torrent vehicle, or 2008 Chevrolet Express, Silverado; GMC Savana or Sierra vehicle within 10
years of the date your vehicle was originally placed in service or 120,000 miles (193.000 km),
whichever occurs first, the condition will be repaired for you at no charge. Diagnosis or repair for
conditions other than the condition described above is not covered under this special coverage
program.
What You Should Do: If you believe that your vehicle has the condition described above, repairs
and adjustments qualifying under this special coverage must be performed by a General Motors
dealer. You may want to contact your GM dealer to find out how long they will need to have your
vehicle so that you may schedule the appointment at a time that is convenient for you. This will also
allow your dealer to order parts if they are not already in stock. Keep this letter with your other
important glove box literature for future reference.
Reimbursement: The enclosed form explains what reimbursement is available and how to request
reimbursement if you have paid for repairs for the special coverage condition. Your request for
reimbursement, including the information and documents mentioned on the enclosed form, must be
received by GM by January 31, 2012. If you have any questions or need any assistance to better
understand related repairs, please contact your dealer.
If you have questions related to a potential reimbursement, please contact the appropriate
Customer Assistance Center at the number listed below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250
> Jan > 11 > Campaign - Spark Plug Wire Warranty Extension > Page 3833
We are sorry for any inconvenience you may experience; however we have taken this action in the
interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
10250
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > Page 3834
Spark Plug: Specifications
Spark Plug Gap....................................................................................................................................
.........................................................1.52 mm (0.60 in)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > Page 3835
Spark Plug: Testing and Inspection
SPARK PLUG INSPECTION
SPARK PLUG USAGE
- Ensure that the correct spark plug is installed. An incorrect spark plug causes driveability
conditions. Refer to Ignition System Specifications for the correct spark plug.
- Ensure that the spark plug has the correct heat range. An incorrect heat range causes the
following conditions: Spark plug fouling-Colder plug
- Pre-ignition causing spark plug and/or engine damage-Hotter plug
SPARK PLUG INSPECTION
- Inspect the terminal post (1) for damage. Inspect for a bent or broken terminal post (1).
- Test for a loose terminal post (1) by twisting and pulling the post. The terminal post (1) should
NOT move.
- Inspect the insulator (2) for flashover or carbon tracking, soot. This is caused by the electrical
charge traveling across the insulator (2) between the terminal post (1) and ground. Inspect for the
following conditions: Inspect the spark plug boot for damage.
- Inspect the spark plug recess area of the cylinder head for moisture, such as oil, coolant, or
water. A spark plug boot that is saturated causes arcing to ground.
- Inspect the insulator (2) for cracks. All or part of the electrical charge may arc through the crack
instead of the electrodes (3, 4).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > Page 3836
- Inspect for evidence of improper arcing. Measure the gap between the center electrode (4) and the side electrode (3) terminals. An
excessively wide electrode gap can prevent correct spark plug operation.
- Inspect for the correct spark plug torque. Insufficient torque can prevent correct spark plug
operation. An over torqued spark plug, causes the insulator (2) to crack.
- Inspect for signs of tracking that occurred near the insulator tip instead of the center electrode (4).
- Inspect for a broken or worn side electrode (3).
- Inspect for a broken, worn, or loose center electrode (4) by shaking the spark plug. A rattling sound indicates internal damage.
- A loose center electrode (4) reduces the spark intensity.
- Inspect for bridged electrodes (3, 4). Deposits on the electrodes (3, 4) reduce or eliminates the
gap.
- Inspect for worn or missing platinum pads on the electrodes (3, 4), if equipped.
- Inspect for excessive fouling.
- Inspect the spark plug recess area of the cylinder head for debris. Dirty or damaged threads can
cause the spark plug not to seat correctly during installation.
SPARK PLUG VISUAL INSPECTION
- Normal operation-Brown to grayish-tan with small amounts of white powdery deposits are normal
combustion by-products from fuels with additives.
- Carbon fouled-Dry, fluffy, black carbon or soot caused by the following conditions: Rich fuel mixtures Leaking fuel injectors
- Excessive fuel pressure
- Restricted air filter element
- Incorrect combustion
- Reduced ignition system voltage output Weak coils
- Worn ignition wires
- Incorrect spark plug gap
- Excessive idling or slow speeds under light loads can keep spark plug temperatures so low that
normal combustion deposits may not burn off.
- Deposit fouling-Oil, coolant, or additives that include substances such as silicone, very white
coating, reduces the spark intensity. Most powdery deposits will not effect spark intensity unless
they form into a glazing over the electrode.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > Page 3837
Spark Plug: Service and Repair
SPARK PLUG REPLACEMENT
REMOVAL PROCEDURE
NOTE: Observe the following service precautions:
- Allow the engine to cool before removing the spark plugs. Attempting to remove spark plugs from
a hot engine can cause the spark plugs to seize. This can damage the cylinder head threads.
- Clean the spark plug recess area before removing the spark plug. Failure to do so can result in
engine damage due to dirt or foreign material entering the cylinder head, or in contamination of the
cylinder head threads. Contaminated threads may prevent proper seating of the new spark plug.
- Use only the spark plugs specified for use in the vehicle. Do not install spark plugs that are either
hotter or colder than those specified for the vehicle. Installing spark plugs of another type can
severely damage the engine.
1. Remove the spark plug wires from the spark plugs.
2. Remove the spark plugs (1) from the cylinder head.
INSTALLATION PROCEDURE
1. NOTE: It is important to check the gap of all new and reconditioned spark plugs before
installation. Pre-set gaps may have changed during
handling. Use a round wire feeler gauge to be sure of an accurate check, particularly on used
plugs. Installing plugs with the wrong gap can cause poor engine performance and may even
damage the engine.
Gap the spark plugs to the specifications. Refer to Ignition System Specifications.
2. NOTE:
- Be sure plug threads smoothly into cylinder head and is fully seated. Use a thread chaser if
necessary to clean threads in cylinder head. Cross-threading or failing to fully seat spark plug can
cause overheating of plug, exhaust blow-by, or thread damage. Follow the recommended torque
specifications carefully. Over or under-tightening can also cause severe damage to engine or spark
plug.
- Refer to Component Fastener Tightening Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Spark Plug > Component Information > Technical Service Bulletins > Page 3838
IMPORTANT: ONLY when the cylinder head is replaced with a NEW cylinder head, the FIRST time
the spark plugs are installed, tighten the spark plugs to 20 N.m (15 lb ft). All subsequent tightening
of the spark plugs, tighten to 15 N.m (11 lb ft).
Install the spark plugs to the cylinder head.
Tighten the spark plugs to 15 N.m (11 lb ft).
3. Install the spark plug wires to the spark plugs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Compression Check > System Information > Specifications
Compression Check: Specifications
The lowest reading should not be less than 70 percent of the highest reading. No cylinder reading
should be less than
................................................................................................................................................... 689
kPa (100 psi).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks >
Compression Check > System Information > Specifications > Page 3842
Compression Check: Testing and Inspection
Engine Compression Test
A compression pressure test of the engine cylinders determines the condition of the rings, the
valves, and the head gasket.
Important: Remove the Powertrain Control Module (PCM) and the ignition fuses from the I/P fuse
block.
1. Disable the ignition. 2. Disable the fuel systems. 3. Remove the spark plugs from all the
cylinders. 4. Remove the air duct from the throttle body. 5. Block the throttle plate in the open
position. 6. Measure the engine compression, using the following procedure:
1. Firmly install the compression gauge to the spark plug hole. 2. Have an assistant crank the
engine through at least 4 compression strokes in the testing cylinder. 3. Record the readings on the
gauge at each stroke. 4. Disconnect the gauge. 5. Repeat the compression test for each cylinder.
7. Record the compression readings from all of the cylinders.
* The lowest reading should not be less than 70 percent of the highest reading.
* No cylinder reading should be less than 689 kPa (100 psi).
8. The following list contains examples of the possible measurements:
* When the compression measurement is normal, the compression builds up quickly and evenly to
the specified compression on each cylinder.
* When the compression is low on the first stroke and tends to build up on the following strokes, but
does not reach the normal compression, the piston rings may be the cause.
* If the compression improves considerably with the addition of three squirts of oil, the piston rings
may be the cause.
* When the compression is low on the first stroke and does not build up in the following strokes, the
valves may be the cause.
* The addition of oil does not affect the compression, the valves may be the cause.
* When the compression is low on two adjacent cylinders, or coolant is present in the crankcase,
the head gasket may be the cause.
9. Remove the block from the throttle plate.
10. Install the air duct to the throttle body. 11. Install the spark plugs. 12. Install the Powertrain
Control Module (PCM) fuse. 13. Install the ignition fuse to the I/P fuse block.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Water Pump > Component Information >
Specifications
Water Pump: Specifications
Water Pump Bolt .................................................................................................................................
.......................................................... 11 N.m 98 lb in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Water Pump > Component Information >
Specifications > Page 3846
Water Pump: Service and Repair
Water Pump Replacement
Tools Required
J 39914 Serpentine Belt Tensioner Unloader
Removal Procedure
1. Drain the cooling system until the coolant is below the level of the water pump.
2. Loosen the water pump pulley bolts (4). 3. Using the J 39914 rotate the drive belt tensioner (8) to
release the tension on the drive belt. 4. Remove the drive belt from the right idler pulley (2). 5.
Carefully release the J 39914 to relieve the drive belt tensioner spring tension. 6. Remove the J
39914 from the drive belt tensioner (8).
7. Remove the water pump pulley bolts (2). 8. Remove the water pump pulley (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Water Pump > Component Information >
Specifications > Page 3847
9. Remove the water pump bolts (3).
10. Remove the water pump (1). 11. Remove the water pump gasket (2). 12. Clean the water pump
mating surfaces.
Installation Procedure
1. Install the water pump gasket (2). 2. Install the water pump (1).
Notice: Refer to Fastener Notice .
3. Install the water pump bolts (3).
Tighten the bolts to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Engine > Water Pump > Component Information >
Specifications > Page 3848
4. Install the water pump pulley (1). Loosely install the pulley bolts (2).
5. Insure the drive belt is properly centered on all the pulleys except the right idler puller (3). 6.
Using the J 39914 rotate the drive belt tensioner away from the drive belt. 7. Install the drive belt to
the right idler pulley (2). 8. Carefully release the J 39914 allowing the drive belt tensioner (8) to
come in contact with the drive belt. 9. Remove the J 39914 from the drive belt tensioner (8).
10. Inspect the drive belt to insure the belt is properly centered on all the pulleys (1-8). 11. Tighten
the water pump pulley bolts.
Tighten the bolts to 25 N.m (18 lb ft).
12. Fill the cooling system. 13. Inspect the cooling system for leaks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant > Component Information >
Technical Service Bulletins > Cooling System - DEX-COOL(R) Coolant Leak Detection Dye
Coolant: Technical Service Bulletins Cooling System - DEX-COOL(R) Coolant Leak Detection Dye
Bulletin No.: 05-06-02-002B
Date: January 18, 2008
INFORMATION
Subject: DEX-COOL(R) Coolant - New Leak Detection Dye J 46366 - Replaces J 29545-6
Models: 1996-2008 GM Passenger Cars and Light/Medium Duty Trucks* (including Saturn)
1997-2008 Isuzu T-Series Medium Duty Tilt Cab Models Built in Janesville and Flint 1999-2008
Isuzu N-Series Medium Duty Commercial Models with 5.7L or 6.0L Gas Engine
2003-2008 HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
*EXCLUDING 2006 and Prior Chevrolet Aveo, Epica, Optra, Vivant and Pontiac Matiz, Wave
Supercede:
This bulletin is being revised to include additional model years. Please discard Corporate Bulletin
Number 05-06-02-002A (Section 06 - Engine/Propulsion System).
Leak detection dye P/N 12378563 (J 29545-6) (in Canada P/N 88900915) may cause
DEX-COOL(R) coolant to appear green in a black vessel making it appear to be conventional
(green) coolant. This may cause a technician to add conventional coolant to a low DEX-COOL(R)
system thus contaminating it. The green DEX-COOL(R) appearance is caused by the color of the
leak detection dye which alters the color of the DEX-COOL(R) coolant.
A new leak detection dye P/N 89022219 (J 46366) (in Canada P/N 89022220) has been released
that does not alter the appearance of the DEX-COOL(R) coolant. When adding the new leak
detection dye the color of the DEX-COOL(R) coolant will not change. For detecting leaks on any
system that uses DEX-COOL(R) leak detection dye P/N 89022219 (in Canada P/N 89022220)
should be used. The new leak detection dye can be used with both conventional and
DEX-COOL(R) coolant.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant > Component Information >
Technical Service Bulletins > Cooling System - DEX-COOL(R) Coolant Leak Detection Dye > Page 3854
Coolant: Technical Service Bulletins Cooling System - Coolant Recycling Information
Bulletin No.: 00-06-02-006D
Date: August 15, 2006
INFORMATION
Subject: Engine Coolant Recycling and Warranty Information
Models: 2007 and Prior GM Passenger Cars and Trucks (Including Saturn) 2007 and Prior
HUMMER Vehicles 2005-2007 Saab 9-7X
Attention:
Please address this bulletin to the Warranty Claims Administrator and the Service Manager.
Supercede:
This bulletin is being revised to adjust the title and Include Warranty Information. Please discard
Corporate Bulletin Number 00-06-02-006C (Section 06 - Engine/Propulsion System).
Coolant Reimbursement Policy
General Motors supports the use of recycled engine coolant for warranty repairs/service, providing
a GM approved engine coolant recycling system is used. Recycled coolant will be reimbursed at
the GMSPO dealer price for new coolant plus the appropriate mark-up. When coolant replacement
is required during a warranty repair, it is crucial that only the relative amount of engine coolant
concentrate be charged, not the total diluted volume. In other words: if you are using two gallons of
pre-diluted (50:50) recycled engine coolant to service a vehicle, you may request reimbursement
for one gallon of GM Goodwrench engine coolant concentrate at the dealer price plus the
appropriate warranty parts handling allowance.
Licensed Approved DEX-COOL(R) Providers
Important:
USE OF NON-APPROVED VIRGIN OR RECYCLED DEX-COOL(R) OR DEVIATIONS IN THE
FORM OF ALTERNATE CHEMICALS OR ALTERATION OF EQUIPMENT, WILL VOID THE GM
ENDORSEMENT, MAY DEGRADE COOLANT SYSTEM INTEGRITY AND PLACE THE
COOLING SYSTEM WARRANTY UNDER JEOPARDY.
Shown in Table 1 are the only current licensed and approved providers of DEX-COOL(R). Products
that are advertised as "COMPATIBLE" or "RECOMMENDED" for use with DEX-COOL(R) have not
been tested or approved by General Motors. Non-approved coolants may degrade the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant > Component Information >
Technical Service Bulletins > Cooling System - DEX-COOL(R) Coolant Leak Detection Dye > Page 3855
coolant system integrity and will no longer be considered a 5 yr/150,000 mile (240,000 km) coolant.
Coolant Removal Services/Recycling
The tables include all coolant recycling processes currently approved by GM. Also included is a
primary phone number and demographic information. Used DEX-COOL(R) can be combined with
used conventional coolant (green) for recycling. Depending on the recycling service and/or
equipment, it is then designated as a conventional 2 yr/30,000 mile (50,000 km) coolant or
DEX-COOL(R) 5 yr/150,000 mile (240,000 km) coolant. Recycled coolants as designated in this
bulletin may be used during the vehicle(s) warranty period.
DEX-COOL(R) Recycling
The DEX-COOL(R) recycling service listed in Table 2 has been approved for recycling waste
engine coolants (DEX-COOL) or conventional) to DEX-COOL(R) with 5 yr/150,000 mile (240,000
km) usability. Recycling Fluid Technologies is the only licensed provider of Recycled
DEX-COOL(R) meeting GM6277M specifications and utilizes GM approved inhibitor packages.
This is currently a limited program being monitored by GM Service Operations which will be
expanded as demand increases.
Conventional (Green) Recycling
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant > Component Information >
Technical Service Bulletins > Cooling System - DEX-COOL(R) Coolant Leak Detection Dye > Page 3856
Processes shown in the Table 3 are capable of recycling waste engine coolants (DEX-COOL(R) or
conventional) to a conventional (green) coolant. Recycling conventional coolant can be
accomplished at your facility by a technician using approved EQUIPMENT (listed by model number
in Table 3), or by an approved coolant recycling SERVICE which may recycle the coolant at your
facility or at an offsite operation. Refer to the table for GM approved coolant recyclers in either of
these two categories. Should you decide to recycle the coolant yourself, strict adherence to the
operating procedures is imperative. Use ONLY the inhibitor chemicals supplied by the respective
(GM approved) recycling equipment manufacturer.
Sealing Tablets
Cooling System Sealing Tablets (Seal Tabs) should not be used as a regular maintenance item
after servicing an engine cooling system. Discoloration of coolant can occur if too many seal tabs
have been inserted into the cooling system. This can occur if seal tabs are repeatedly used over
the service life of a vehicle. Where appropriate, seal tabs may be used if diagnostics fail to repair a
small leak in the cooling system. When a condition appears in which seal tabs may be
recommended, a specific bulletin will be released describing their proper usage.
Water Quality
The integrity of the coolant is dependent upon the quality of DEX-COOL(R) and water.
DEX-COOL(R) is a product that has enhanced protection capability as well as an extended service
interval. These enhanced properties may be jeopardized by combining DEX-COOL(R) with poor
quality water. If you suspect the water in your area of being poor quality, it is recommended you
use distilled or de-ionized water with DEX-COOL(R).
"Pink" DEX-COOL(R)
DEX-COOL(R) is orange in color to distinguish it from other coolants. Due to inconsistencies in the
mixing of the dyes used with DEX-COOL(R), some batches may appear pink after time. The color
shift from orange to pink does not affect the integrity of the coolant, and still maintains the 5
yr/150,000 mile (240,000 km) service interval.
Back Service
Only use DEX-COOL(R) if the vehicle was originally equipped with DEX-COOL(R).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant > Component Information >
Technical Service Bulletins > Cooling System - DEX-COOL(R) Coolant Leak Detection Dye > Page 3857
Contamination
Mixing conventional green coolant with DEX-COOL(R) will degrade the service interval from 5
yrs./150,000 miles (240,000 km) to 2 yrs./30,000 miles (50,000 km) if left in the contaminated
condition. If contamination occurs, the cooling system must be flushed twice immediately and
re-filled with a 50/50 mixture of DEX-COOL(R) and clean water in order to preserve the enhanced
properties and extended service interval of DEX-COOL(R).
After 5 years/150,000 miles (240,000 km)
After 5 yrs/150,000 miles (240,000 km), the coolant should be changed, preferably using a coolant
exchanger. If the vehicle was originally equipped with DEX-COOL(R) and has not had problems
with contamination from non-DEX-COOL(R) coolants, then the service interval remains the same,
and the coolant does not need to be changed for another 5 yrs/150,000 miles (240,000 km)
Equipment (Coolant Exchangers)
The preferred method of performing coolant replacement is to use a coolant exchanger. A coolant
exchanger can replace virtually all of the old coolant with new coolant. Coolant exchangers can be
used to perform coolant replacement without spillage, and facilitate easy waste collection. They
can also be used to lower the coolant level in a vehicle to allow for less messy servicing of cooling
system components. It is recommended that you use a coolant exchanger with a vacuum feature
facilitates removing trapped air from the cooling system. This is a substantial time savings over
repeatedly thermo cycling the vehicle and topping-off the radiator. The vacuum feature also allows
venting of a hot system to relieve system pressure. Approved coolant exchangers are available
through the GMDE (General Motors Dealer Equipment) program.
For refilling a cooling system that has been partially or fully drained for repairs other than coolant
replacement, the Vac-N-Fill Coolant Refill Tool (GE-47716) is recommended to facilitate removal of
trapped air from the cooling system during refill.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant > Component Information >
Specifications > Capacity Specifications
Coolant: Capacity Specifications
Cooling System ...................................................................................................................................
................................................ 10.5 quarts (9.9 liters)
NOTE: All capacities are approximate. When adding, be sure to fill to the approximate level.
Recheck fluid level after filling.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant > Component Information >
Specifications > Capacity Specifications > Page 3860
Coolant: Fluid Type Specifications
ENGINE COOLANT
The cooling system in your vehicle is filled with DEX-COOL engine coolant. This coolant is
designed to remain in your vehicle for 5 years or 150,000 miles (240 000 km), whichever occurs
first, if you add only DEX-COOL extended life coolant.
A 50/50 mixture of clean, drinkable water and DEX-COOL coolant will:
- Give freezing protection down to -34°F (-37°C).
- Give boiling protection up to 265°F (129°C).
- Protect against rust and corrosion.
- Help keep the proper engine temperature.
- Let the warning lights and gages work as they should.
NOTICE: Using coolant other than DEX-COOL may cause premature engine, heater core or
radiator corrosion. In addition, the engine coolant may require changing sooner, at 30,000 miles
(50 000 km) or 24 months, whichever occurs first. Any repairs would not be covered by your
warranty. Always use DEX-COOL (silicate-free) coolant in your vehicle.
WHAT TO USE
Use a mixture of one-half clean, drinkable water and one-half DEX-COOL coolant which won't
damage aluminum parts. If you use this coolant mixture, you don't need to add anything else.
CAUTION: Adding only plain water to your cooling system can be dangerous. Plain water, or some
other liquid such as alcohol, can boil before the proper coolant mixture will. Your vehicle's coolant
warning system is set for the proper coolant mixture. With plain water or the wrong mixture, your
engine could get too hot but you would not get the overheat warning. Your engine could catch fire
and you or others could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL
coolant.
NOTICE: If you use an improper coolant mixture, your engine could overheat and be badly
damaged. The repair cost would not be covered by your warranty. Too much water in the mixture
can freeze and crack the engine, radiator, heater core and other parts.
If you have to add coolant more than four times a year, check your cooling system.
NOTICE: If you use the proper coolant, you do not have to add extra inhibitors or additives which
claim to improve the system. These can be harmful.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement
Coolant Line/Hose: Service and Repair Heater Inlet Pipe Replacement
Heater Inlet Pipe Replacement
Removal Procedure
1. Drain the cooling system.
2. Release and slide the heater core inlet hose clamp away from the heater inlet pipe connection.
3. Disconnect the heater core inlet hose from the heater inlet pipe.
4. Remove the heater inlet pipe nut (2). 5. Remove the heater inlet pipe (1). 6. Remove the seal (3)
from the heater inlet pipe (1).
Installation Procedure
1. Install a new seal (3) to the heater inlet pipe (1). 2. Apply engine coolant to the heater inlet pipe
seal (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3865
3. Install the heater outlet pipe (1).
Notice: Refer to Fastener Notice .
4. Install the heater inlet pipe nut (2).
Tighten the nut to 25 N.m (18 lb ft).
5. Connect the heater core inlet hose to the heater inlet pipe. 6. Position the heater core inlet hose
clamp over the heater inlet pipe connection. 7. Fill the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3866
Coolant Line/Hose: Service and Repair Heater Outlet Hose Replacement
Heater Outlet Hose Replacement
Removal Procedure
1. Drain the cooling system.
2. Remove the heater outlet hose clamps (1). 3. Remove the heater outlet hose (2).
Installation Procedure
1. Apply engine coolant to the heater outlet hose in order to ease installation.
2. Install the heater outlet hose (2). 3. Install the heater outlet hose clamps (1). 4. Fill the cooling
system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3867
Coolant Line/Hose: Service and Repair Heater Outlet Pipe Replacement
Heater Outlet Pipe Replacement
Removal Procedure
1. Remove the injector sight shield. 2. Drain the cooling system. 3. Remove the air cleaner air
intake duct.
4. Remove the manifold absolute pressure (MAP) sensor bolt (3) and bracket (2). 5. Rotate the
MAP sensor out of the way of the heater outlet pipe. 6. Disconnect the evaporative emissions
(EVAP) pipe from the EVAP canister purge solenoid. 7. Disconnect the electrical connector from
the EVAP canister purge solenoid. 8. Disconnect the exhaust gas recirculation (EGR) valve
electrical connector.
9. Release and slide the heater outlet hose clamp (1) away from the heater outlet pipe connection.
10. Disconnect the heater outlet hose (2) from the heater outlet pipe.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3868
11. Release and slide the heater core outlet hose clamp away from the heater outlet pipe
connection. 12. Disconnect the heater core outlet hose from the heater outlet pipe.
13. Remove the heater outlet pipe nut (1) securing the heater outlet pipe (2) to the intake manifold.
14. Remove the two nuts (3) and bolt (4) securing the heater outlet pipe to the throttle body. 15.
Remove the heater outlet pipe (2) from the engine.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3869
1. Install the heater outlet pipe (2) to the engine.
Notice: Refer to Fastener Notice .
2. Install the heater outlet pipe nut (1) securing the heater outlet pipe (2) to the intake manifold.
Tighten the nut to 25 N.m (18 lb ft).
3. Install the heater outlet pipe to the throttle body nuts (3) and bolt (4).
Tighten the nuts and bolt to 10 N.m (89 lb in).
4. Connect the heater core outlet hose to the heater outlet pipe. 5. Position the heater core outlet
hose clamp over the heater outlet pipe connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3870
6. Connect the heater outlet hose (2) to the heater outlet pipe. 7. Position the heater outlet hose
clamp (1) over the heater outlet pipe connection. 8. Connect the electrical connector to the EGR
valve. 9. Connect the electrical connector to the EVAP canister purge solenoid.
10. Connect the EVAP pipe to the EVAP canister purge solenoid.
11. Reposition the MAP sensor. 12. Install the MAP sensor bracket (2) and bolt (3).
Tighten the bolt to 10 N.m (89 lb in).
13. Install the air cleaner air intake duct. 14. Fill the cooling system. 15. Install the injector sight
shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3871
Coolant Line/Hose: Service and Repair Thermal Bypass Fitting Replacement
Thermal Bypass Fitting Replacement
Removal Procedure
1. Drain the cooling system.
2. Release and slide the thermal bypass pipe hose clamp (2) away from the thermal bypass fitting.
3. Remove the thermal bypass hose (1) from the thermal bypass fitting.
4. Release and slide the heater outlet hose clamp (1) away from the thermal bypass fitting. 5.
Remove the heater outlet hose (2) from the thermal bypass fitting.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3872
6. Remove the thermal bypass fitting bolt (2). 7. Remove the thermal bypass fitting (1). 8. Remove
the seal from the thermal bypass fitting.
Installation Procedure
1. Install a new seal to the thermal bypass fitting. 2. Apply engine coolant to the thermal bypass
fitting seal to ease installation.
3. Install the thermal bypass fitting (1).
Notice: Refer to Fastener Notice .
4. Install the thermal bypass fitting bolt (2).
Tighten the bolt to 12 N.m (106 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3873
5. Install the heater outlet hose (2) to the thermal bypass fitting. 6. Position the heater outlet hose
clamp (1) over the thermal bypass fitting.
7. Install the thermal bypass hose (1) to the thermal bypass fitting. 8. Position the thermal bypass
pipe hose clamp (2) over the thermal bypass fitting. 9. Fill the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3874
Coolant Line/Hose: Service and Repair
Heater Inlet Pipe Replacement
Heater Inlet Pipe Replacement
Removal Procedure
1. Drain the cooling system.
2. Release and slide the heater core inlet hose clamp away from the heater inlet pipe connection.
3. Disconnect the heater core inlet hose from the heater inlet pipe.
4. Remove the heater inlet pipe nut (2). 5. Remove the heater inlet pipe (1). 6. Remove the seal (3)
from the heater inlet pipe (1).
Installation Procedure
1. Install a new seal (3) to the heater inlet pipe (1). 2. Apply engine coolant to the heater inlet pipe
seal (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3875
3. Install the heater outlet pipe (1).
Notice: Refer to Fastener Notice .
4. Install the heater inlet pipe nut (2).
Tighten the nut to 25 N.m (18 lb ft).
5. Connect the heater core inlet hose to the heater inlet pipe. 6. Position the heater core inlet hose
clamp over the heater inlet pipe connection. 7. Fill the cooling system.
Heater Outlet Hose Replacement
Heater Outlet Hose Replacement
Removal Procedure
1. Drain the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3876
2. Remove the heater outlet hose clamps (1). 3. Remove the heater outlet hose (2).
Installation Procedure
1. Apply engine coolant to the heater outlet hose in order to ease installation.
2. Install the heater outlet hose (2). 3. Install the heater outlet hose clamps (1). 4. Fill the cooling
system.
Heater Outlet Pipe Replacement
Heater Outlet Pipe Replacement
Removal Procedure
1. Remove the injector sight shield. 2. Drain the cooling system. 3. Remove the air cleaner air
intake duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3877
4. Remove the manifold absolute pressure (MAP) sensor bolt (3) and bracket (2). 5. Rotate the
MAP sensor out of the way of the heater outlet pipe. 6. Disconnect the evaporative emissions
(EVAP) pipe from the EVAP canister purge solenoid. 7. Disconnect the electrical connector from
the EVAP canister purge solenoid. 8. Disconnect the exhaust gas recirculation (EGR) valve
electrical connector.
9. Release and slide the heater outlet hose clamp (1) away from the heater outlet pipe connection.
10. Disconnect the heater outlet hose (2) from the heater outlet pipe.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3878
11. Release and slide the heater core outlet hose clamp away from the heater outlet pipe
connection. 12. Disconnect the heater core outlet hose from the heater outlet pipe.
13. Remove the heater outlet pipe nut (1) securing the heater outlet pipe (2) to the intake manifold.
14. Remove the two nuts (3) and bolt (4) securing the heater outlet pipe to the throttle body. 15.
Remove the heater outlet pipe (2) from the engine.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3879
1. Install the heater outlet pipe (2) to the engine.
Notice: Refer to Fastener Notice .
2. Install the heater outlet pipe nut (1) securing the heater outlet pipe (2) to the intake manifold.
Tighten the nut to 25 N.m (18 lb ft).
3. Install the heater outlet pipe to the throttle body nuts (3) and bolt (4).
Tighten the nuts and bolt to 10 N.m (89 lb in).
4. Connect the heater core outlet hose to the heater outlet pipe. 5. Position the heater core outlet
hose clamp over the heater outlet pipe connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3880
6. Connect the heater outlet hose (2) to the heater outlet pipe. 7. Position the heater outlet hose
clamp (1) over the heater outlet pipe connection. 8. Connect the electrical connector to the EGR
valve. 9. Connect the electrical connector to the EVAP canister purge solenoid.
10. Connect the EVAP pipe to the EVAP canister purge solenoid.
11. Reposition the MAP sensor. 12. Install the MAP sensor bracket (2) and bolt (3).
Tighten the bolt to 10 N.m (89 lb in).
13. Install the air cleaner air intake duct. 14. Fill the cooling system. 15. Install the injector sight
shield.
Thermal Bypass Fitting Replacement
Thermal Bypass Fitting Replacement
Removal Procedure
1. Drain the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3881
2. Release and slide the thermal bypass pipe hose clamp (2) away from the thermal bypass fitting.
3. Remove the thermal bypass hose (1) from the thermal bypass fitting.
4. Release and slide the heater outlet hose clamp (1) away from the thermal bypass fitting. 5.
Remove the heater outlet hose (2) from the thermal bypass fitting.
6. Remove the thermal bypass fitting bolt (2). 7. Remove the thermal bypass fitting (1). 8. Remove
the seal from the thermal bypass fitting.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3882
Installation Procedure
1. Install a new seal to the thermal bypass fitting. 2. Apply engine coolant to the thermal bypass
fitting seal to ease installation.
3. Install the thermal bypass fitting (1).
Notice: Refer to Fastener Notice .
4. Install the thermal bypass fitting bolt (2).
Tighten the bolt to 12 N.m (106 lb in).
5. Install the heater outlet hose (2) to the thermal bypass fitting. 6. Position the heater outlet hose
clamp (1) over the thermal bypass fitting.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3883
7. Install the thermal bypass hose (1) to the thermal bypass fitting. 8. Position the thermal bypass
pipe hose clamp (2) over the thermal bypass fitting. 9. Fill the cooling system.
Thermal Bypass Hose Replacement
Thermal Bypass Hose Replacement
Removal Procedure
1. Drain the cooling system.
2. Release and slide the thermal bypass pipe hose clamps (2) away from the hose connections. 3.
Remove thermal bypass hose (1).
Installation Procedure
1. Apply engine coolant to the bypass hose in order to ease installation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3884
2. Install the thermal bypass pipe hose (1). 3. Position the thermal bypass pipe hose clamps (2)
over the hose end connections. 4. Fill the cooling system.
Thermal Bypass Pipe Replacement
Thermal Bypass Pipe Replacement
Tools Required
J 21882 Oil Suction Pipe Installer
Removal Procedure
1. Drain the engine coolant. 2. Remove the upper intake manifold. 3. Remove the thermal bypass
hose.
4. Remove the thermal bypass pipe bolt. 5. Remove the thermal bypass pipe .
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Line/Hose > Component
Information > Service and Repair > Heater Inlet Pipe Replacement > Page 3885
1. Apply sealant GM P/N 12345493 (Canadian P/N 10953488) or equivalent to the end of the
thermal bypass pipe where the pipe is pressed into the
intake manifold.
2. Install the thermal bypass pipe using J 21882 .
Notice: Refer to Fastener Notice .
3. Install the thermal bypass pipe bolt.
Tighten the bolt to 10 N.m (89 lb in).
4. Install the thermal bypass hose. 5. Install the upper intake manifold. 6. Fill the engine with
coolant.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Reservoir > Component
Information > Service and Repair > Radiator Surge Tank Inlet Hose/Pipe Replacement
Coolant Reservoir: Service and Repair Radiator Surge Tank Inlet Hose/Pipe Replacement
Surge Tank Hose/Pipe Replacement - Inlet
Removal Procedure
1. Remove the surge tank inlet hose clamp from the surge tank. 2. Remove the surge tank inlet
hose from the surge tank.
3. Remove the surge tank inlet hose clamp from the engine. 4. Remove the surge tank inlet hose
from the engine.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Reservoir > Component
Information > Service and Repair > Radiator Surge Tank Inlet Hose/Pipe Replacement > Page 3890
1. Install the surge tank inlet hose to the engine. 2. Install the surge tank inlet hose clamp to the
engine.
3. Install the surge tank inlet hose to the surge tank. 4. Install the surge tank inlet hose clamp to the
surge tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Reservoir > Component
Information > Service and Repair > Radiator Surge Tank Inlet Hose/Pipe Replacement > Page 3891
Coolant Reservoir: Service and Repair Surge Tank Replacement
Surge Tank Replacement
Tools Required
GE-47716 1617 Vac N Fill Coolant Refill Tool
Removal Procedure
1. Drain the engine coolant.
2. Remove the surge tank inlet hose clamp from the surge tank. 3. Disconnect the surge tank inlet
hose from the surge tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Reservoir > Component
Information > Service and Repair > Radiator Surge Tank Inlet Hose/Pipe Replacement > Page 3892
4. Remove the surge tank bolts from the surge tank. 5. Lift the surge tank to gain access to the
heater outlet hose. 6. Remove the heater outlet hose clamp from the surge tank. 7. Remove the
heater outlet hose from the surge tank. 8. Remove the surge tank from the vehicle.
Installation Procedure
1. Install the heater outlet hose to the surge tank. 2. Install the surge tank to the vehicle.
Notice: Refer to Fastener Notice .
3. Install the surge tank bolts to the surge tank.
Tighten the bolts to 9 N.m (80 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Coolant Reservoir > Component
Information > Service and Repair > Radiator Surge Tank Inlet Hose/Pipe Replacement > Page 3893
4. Connect the surge tank inlet hose to the surge tank. 5. Install the surge tank inlet hose clamp to
the surge tank. 6. Fill the engine coolant.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Cooling Fan > Radiator Cooling
Fan Motor > Component Information > Diagrams > Cooling Fan - Left
Radiator Cooling Fan Motor: Diagrams Cooling Fan - Left
Cooling Fan - Left
Cooling Fan - Left
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Cooling Fan > Radiator Cooling
Fan Motor > Component Information > Diagrams > Cooling Fan - Left > Page 3899
Radiator Cooling Fan Motor: Diagrams Cooling Fan - Right
Cooling Fan - Right
Cooling Fan - Right
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Cooling Fan > Radiator Cooling
Fan Motor > Component Information > Diagrams > Page 3900
Radiator Cooling Fan Motor: Service and Repair
Engine Coolant Fan Motor Replacement
Tools Required
GE-47827 Socket
This vehicle is equipped with counter-rotating engine cooling fans. The right hand fan will require
the use of GE-47827 for fan blade removal. The left hand fan blade can be removed using a
normal six point socket.
Removal Procedure
Caution: An electric fan under the hood can start up even when the engine is not running and can
injure you. Keep hands, clothing and tools away from any underhood electric fan.
Caution: To help avoid personal injury or damage to the vehicle, a bent, cracked, or damaged fan
blade or housing should always be replaced.
Caution: Before servicing any electrical component, the ignition and start switch must be in the
OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these
procedures. If a tool or equipment could easily come in contact with a live exposed electrical
terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause
personal injury and/or damage to the vehicle or its components.
1. Remove the fan shroud assembly from the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Cooling Fan > Radiator Cooling
Fan Motor > Component Information > Diagrams > Page 3901
Important: Hold the fan blade to prevent rotation.
2. Using GE-47827 , or a six point socket, turn the fan motor drive plate in the opposite direction of
the arrow stamped on the fan blade. 3. Remove and discard the fan blade.
Notice: Failure to tape off all of the entry points to the cooling fan motor will allow debris to enter
and damage the motor.
Important: When reusing the fan motor tape off the front and rear entry points of the fan motor
before drilling the rivets.
4. Center punch each of the rivets (1) from the rear of the motor. 5. Drill the head of the rivets (1)
from the fan motor using a 6.35 mm (0.25 in) drill bit.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Cooling Fan > Radiator Cooling
Fan Motor > Component Information > Diagrams > Page 3902
6. Tap the rivets out of the fan shroud.
7. Remove the fan motor from the fan shroud.
Important: Blow off any excess debris from the fan motor.
8. Remove the tape covering the entry points from the fan motor.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Cooling Fan > Radiator Cooling
Fan Motor > Component Information > Diagrams > Page 3903
1. Install the engine cooling fan motor to the fan shroud.
Important: Position the fan motor to the fan shroud and insert the bolts from the front side.
2. Install the cooling fan motor bolts.
Notice: Refer to Fastener Notice .
3. Install the cooling fan motor nuts.
Tighten the nuts to 6 N.m (53 lb in).
Notice: Failure to heat the fan hub in hot tap water before installation will result in cooling fan failure
due to cracking. Allowing the heated fan to cool for more than one minute prior to installation will
also result in failure due to cracking.
Important: Using hot tap water at a minimum of 49°C (120°F), hold the new fan blade hub under
the running water for a minimum of 60 seconds to hear the fan blade to the temperature of the
water.
Immediately after heating, position the fan blade on the fan motor drive plate.
4. Install the new engine cooling fan blade. 5. Using the GE-47827 , or a six point socket, turn the
fan motor drive plate in the same direction of the arrow on the fan blade until the fan motor
drive plate engages to the fan blade.
6. Rotate the cooling fan blade to ensure proper rotation. 7. Install the fan shroud assembly to the
vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Engine - Coolant Temperature
Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component Information > Specifications
Temperature Versus Resistance
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Engine - Coolant Temperature
Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component Information > Specifications > Page
3908
Rear Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Engine - Coolant Temperature
Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component Information > Specifications > Page
3909
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Engine coolant must be drained below the level of the engine coolant temperature (ECT) sensor.
Refer to Draining and Filling Cooling System
(Static Fill) Draining and Filling Cooling System (GE 47716 Fill).
2. Disconnect the ECT sensor harness connector. 3. Remove the ECT sensor.
INSTALLATION PROCEDURE
1. IMPORTANT: Tap out sensor mounting hole in engine head to remove any thread sealant
residue. Clean any sealant residue from old sensor if the sensor is going to be reused.
If the sensor is being reused, apply thread sealant GM P/N 12345382 (Canadian P/N 10953489) or
equivalent, to sensor threads.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the ECT sensor.
Tighten the engine coolant temperature sensor to 23 N.m (17 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Engine - Coolant Temperature
Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component Information > Specifications > Page
3910
3. Connect the ECT sensor harness connector. Push in the connector until a click is heard, then
pull back to confirm a positive engagement. 4. Fill engine coolant to proper level. Refer to Draining
and Filling Cooling System (Static Fill) Draining and Filling Cooling System (GE 47716
Fill).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Fan Shroud > Component Information >
Service and Repair
Fan Shroud: Service and Repair
Cooling Fan and Shroud Replacement
Tools Required
GE-47716 1617 Vac N Fill Coolant Refill Tool
Removal Procedure
1. Remove the front fascia. 2. Drain the coolant. 3. Disconnect the electrical connectors from the
fan motors. 4. Unclip the wire harness from the fan assembly.
5. Remove the condenser radiator fan module (CRFM) closeout panel retainers from the
condenser. 6. Remove the CRFM closeout panel from the condenser. 7. Remove the front impact
bar.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Fan Shroud > Component Information >
Service and Repair > Page 3914
8. Remove the CRFM mounting bracket bolts from the radiator support. 9. Remove the CRFM
mounting brackets from the radiator support.
10. Remove the radiator inlet hose clamp from the radiator (1). 11. Remove the radiator inlet hose
from the radiator (2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Fan Shroud > Component Information >
Service and Repair > Page 3915
12. Disconnect the transmission cooler lines from the radiator. 13. Unclip the transmission cooler
lines from the fan assembly.
14. Remove the fan assembly bolts from the radiator. 15. Remove the fan assembly from the
radiator. 16. Position the condenser and radiator assembly forward of the right hand front impact
bar bracket. 17. Remove the fan assembly from the vehicle.
Installation Procedure
1. Install the fan assembly to the vehicle. 2. Return the condenser and radiator assembly to the
mounted position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Fan Shroud > Component Information >
Service and Repair > Page 3916
3. Install the fan assembly to the radiator by guiding the lower tabs into the corresponding hooks on
the radiator.
Notice: Refer to Fastener Notice .
4. Install the fan assembly bolts to the radiator.
Tighten the bolts to 9 N.m (80 lb in).
5. Install the radiator inlet hose to the radiator (2). 6. Install the radiator inlet hose clamp to the
radiator (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Fan Shroud > Component Information >
Service and Repair > Page 3917
7. Clip the transmission cooler lines to the fan assembly. 8. Connect the transmission cooler lines
to the radiator.
9. Install the CRFM mounting brackets to the radiator support.
10. Install the CRFM mounting bracket bolts to the radiator support.
Tighten the bolts to 20 N.m (15 lb ft).
11. Install the front impact bar.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Fan Shroud > Component Information >
Service and Repair > Page 3918
12. Install the CRFM closeout panel to the condenser. 13. Install the CRFM closeout panel
retainers to the condenser.
14. Clip the engine wire harness to fan assembly.
Notice: Refer to Compressor Hose Clearance to the Exhaust Gas Recirculation (EGR) Pipe Notice
.
15. Install the electrical connectors to the fan motors. 16. Install the front fascia. 17. Fill the cooling
system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Heater Core > Component Information >
Technical Service Bulletins > Cooling System, A/C - Aluminum Heater Cores/Radiators
Heater Core: Technical Service Bulletins Cooling System, A/C - Aluminum Heater Cores/Radiators
INFORMATION
Bulletin No.: 05-06-02-001A
Date: July 16, 2008
Subject: Information On Aluminum Heater Core and/or Radiator Replacement
Models: 2005 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2005
HUMMER H2
Supercede:
This bulletin is being revised to update the Warranty Information. Please discard Corporate Bulletin
Number 05-06-02-001 (Section 06 - Engine/Propulsion System).
Important:
2004-05 Chevrolet Aveo (Pontiac Wave, Canada Only) does not use DEX-COOL(R). Refer to the
flushing procedure explained later in this bulletin.
The following information should be utilized when servicing aluminum heater core and/or radiators
on repeat visits. A replacement may be necessary because erosion, corrosion, or insufficient
inhibitor levels may cause damage to the heater core, radiator or water pump. A coolant check
should be performed whenever a heater core, radiator, or water pump is replaced. The following
procedures/ inspections should be done to verify proper coolant effectiveness.
Caution:
To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot.
The cooling system will release scalding fluid and steam under pressure if the radiator cap or surge
tank cap is removed while the engine and radiator are still hot.
Important:
If the vehicle's coolant is low, drained out, or the customer has repeatedly added coolant or water
to the system, then the system should be completely flushed using the procedure explained later in
this bulletin.
Technician Diagnosis
^ Verify coolant concentration. A 50% coolant/water solution ensures proper freeze and corrosion
protection. Inhibitor levels cannot be easily measured in the field, but can be indirectly done by the
measurement of coolant concentration. This must be done by using a Refractometer J 23688
(Fahrenheit scale) or J 26568 (centigrade scale), or equivalent, coolant tester. The Refractometer
uses a minimal amount of coolant that can be taken from the coolant recovery reservoir, radiator or
the engine block. Inexpensive gravity float testers (floating balls) will not completely analyze the
coolant concentration fully and should not be used. The concentration levels should be between
50% and 65% coolant concentrate. This mixture will have a freeze point protection of -34 degrees
Fahrenheit (-37 degrees Celsius). If the concentration is below 50%, the cooling system must be
flushed.
^ Inspect the coolant flow restrictor if the vehicle is equipped with one. Refer to Service Information
(SI) and/or the appropriate Service Manual for component location and condition for operation.
^ Verify that no electrolysis is present in the cooling system. This electrolysis test can be performed
before or after the system has been repaired. Use a digital voltmeter set to 12 volts. Attach one test
lead to the negative battery post and insert the other test lead into the radiator coolant, making sure
the lead does not touch the filler neck or core. Any voltage reading over 0.3 volts indicates that
stray current is finding its way into the coolant. Electrolysis is often an intermittent condition that
occurs when a device or accessory that is mounted to the radiator is energized. This type of current
could be caused from a poorly grounded cooling fan or some other accessory and can be verified
by watching the volt meter and turning on and off various accessories or engage the starter motor.
Before using one of the following flush procedures, the coolant recovery reservoir must be
removed, drained, cleaned and reinstalled before refilling the system.
Notice:
^ Using coolant other than DEX‐COOL(R) may cause premature engine, heater core or
radiator corrosion. In addition, the engine coolant may require changing sooner, at 30,000 miles
(50,000 km) or 24 months, whichever occurs first. Any repairs would not be covered by your
warranty. Always use DEX‐COOL(R) (silicate free) coolant in your vehicle.
^ If you use an improper coolant mixture, your engine could overheat and be badly damaged. The
repair cost would not be covered by your warranty. Too much water in the mixture can freeze and
crack the engine, radiator, heater core and other parts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Heater Core > Component Information >
Technical Service Bulletins > Cooling System, A/C - Aluminum Heater Cores/Radiators > Page 3923
Flushing Procedures using DEX-COOL(R)
Important:
The following procedure recommends refilling the system with DEX-COOL(R), P/N 12346290 (in
Canada, use P/N 10953464), GM specification 6277M. This coolant is orange in color and has a
service interval of 5 years or 240,000 km (150,000 mi). However, when used on vehicles built prior
to the introduction of DEX-COOL(R), maintenance intervals will remain the same as specified in the
Owner's Manual.
^ If available, use the approved cooling system flush and fill machine (available through the GM
Dealer Equipment Program) following the manufacturer's operating instructions.
^ If approved cooling system flush and fill machine is not available, drain the coolant and dispose of
properly following the draining procedures in the appropriate Service Manual. Refill the system
using clear, drinkable water and run the vehicle until the thermostat opens. Repeat and run the
vehicle three (3) times to totally remove the old coolant or until the drained coolant is almost clear.
Once the system is completely flushed, refill the cooling system to a 50%-60% concentration with
DEX‐COOL(R), P/N 12346290 (in Canada, use P/N 10953464), GM specification 6277M,
following the refill procedures in the appropriate Service Manual.
If a Service Manual is not available, fill half the capacity of the system with 100% DEX-COOL(R),
P/N 12346290 (in Canada, use P/N 10953464), GM specification 6277M. Then slowly add clear,
drinkable water (preferably distilled) to the system until the level of the coolant mixture has reached
the base of the radiator neck. Wait two (2) minutes and reverify the coolant level. If necessary, add
clean water to restore the coolant to the appropriate level.
Once the system is refilled, reverify the coolant concentration using a Refractometer J 23688
(Fahrenheit scale) or J 26568 (centigrade scale) coolant tester, or equivalent. The concentration
levels should be between 50% and 65%.
Flushing Procedures using Conventional Silicated (Green Colored) Coolant
Important:
2004-2005 Chevrolet Aveo (Pontiac Wave, Canada Only) does not use DEX‐COOL(R).
The Aveo and Wave are filled with conventional, silicated engine coolant that is blue in color.
Silicated coolants are typically green in color and are required to be drained, flushed and refilled
every 30,000 miles (48,000 km). The Aveo and Wave are to be serviced with conventional, silicated
coolant. Use P/N 12378560 (1 gal) (in Canada, use P/N 88862159 (1 L). Refer to the Owner's
Manual or Service Information (SI) for further information on OEM coolant.
Important:
Do not mix the OEM orange colored DEX-COOL(R) coolant with green colored coolant when
adding coolant to the system or when servicing the vehicle's cooling system. Mixing the orange and
green colored coolants will produce a brown coolant which may be a customer dissatisfier and will
not extend the service interval to that of DEX-COOL(R). Conventional silicated coolants offered by
GM Service and Parts Operations are green in color.
^ If available, use the approved cooling system flush and fill machine (available through the GM
Dealer Equipment Program) following the manufacturer's operating instructions.
^ If approved cooling systems flush and fill machine is not available, drain coolant and dispose of
properly following the draining procedures in appropriate Service Manual. Refill the system using
clear, drinkable water and run vehicle until thermostat opens. Repeat and run vehicle three (3)
times to totally remove old coolant or until drained coolant is almost clear. Once the system is
completely flushed, refill the cooling system to a 50%-60% concentration with a good quality
ethylene glycol base engine coolant, P/N 12378560, 1 gal (in Canada, use P/N 88862159 1 L),
conforming to GM specification 1825M, or recycled coolant conforming to GM specification 1825M,
following the refill procedures in the appropriate Service Manual.
If a Service Manual is not available, fill half the capacity of the system with 100% good quality
ethylene glycol base (green colored) engine coolant, P/N 12378560 1 gal., (in Canada, use P/N
88862159 1 L) conforming to GM specification 1825M. Then slowly add clear, drinkable water
(preferably distilled) to system until the level of the coolant mixture has reached the base of the
radiator neck. Wait two (2) minutes and recheck coolant level. If necessary, add clean water to
restore coolant to the appropriate level.
Once the system is refilled, recheck the coolant concentration using a Refractometer J 23688
(Fahrenheit scale) or J 26568 (centigrade scale) coolant tester, or equivalent. Concentration levels
should be between 50% and 65%.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Heater Core > Component Information >
Technical Service Bulletins > Cooling System, A/C - Aluminum Heater Cores/Radiators > Page 3924
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Heater Core > Component Information >
Technical Service Bulletins > Page 3925
Heater Core: Service and Repair
Heater Core Replacement
Removal Procedure
1. Remove the HVAC module from the vehicle.
2. Remove the heater core cover screws from the HVAC module.
3. Remove the heater core cover from the HVAC module.
4. Remove the heater core from the HVAC module.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Heater Core > Component Information >
Technical Service Bulletins > Page 3926
1. Install the heater core to the HVAC module.
2. Install the heater core cover to the HVAC module.
Notice: Refer to Fastener Notice.
3. Install the heater core cover screws to the HVAC module.
Tighten the screw to 1.5 N.m (13 lb in).
4. Install the HVAC module to the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Heater Hose > Component Information >
Service and Repair > Heater Inlet Hose Replacement
Heater Hose: Service and Repair Heater Inlet Hose Replacement
Heater Inlet Hose Replacement
Removal Procedure
1. Drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill) Draining and
Filling Cooling System (GE 47716 Fill). 2. Remove the heater inlet hose clamp from the heater
core. 3. Remove the heater inlet hose (2) from the heater core.
4. Remove the heater inlet hose clamp from the engine. 5. Remove the heater inlet hose (2) from
the engine. 6. Remove the heater inlet hose (2) from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Heater Hose > Component Information >
Service and Repair > Heater Inlet Hose Replacement > Page 3931
1. Install the heater inlet hose (2) to the vehicle. 2. Install the heater inlet hose (2) to the engine. 3.
Install the heater inlet hose clamp to the engine.
4. Install the heater inlet hose (2) to the heater core. 5. Install the heater inlet hose clamp to the
heater core. 6. Fill the cooling system. Refer to Draining and Filling Cooling System (Static Fill)
Draining and Filling Cooling System (GE 47716 Fill).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Heater Hose > Component Information >
Service and Repair > Heater Inlet Hose Replacement > Page 3932
Heater Hose: Service and Repair Heater Outlet Hose Replacement
Heater Outlet Hose Replacement
Removal Procedure
1. Drain the engine coolant. Refer to Draining and Filling Cooling System (Static Fill) Draining and
Filling Cooling System (GE 47716 Fill). 2. Remove the heater outlet hose clamp from the heater
core. 3. Remove the heater outlet hose (1) from the heater core.
4. Remove the heater outlet hose clamp from the engine. 5. Remove the heater outlet hose (1)
from the engine. 6. Position the loose end of the heater outlet hose (1) outboard to ease in the
removal of the surge tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Heater Hose > Component Information >
Service and Repair > Heater Inlet Hose Replacement > Page 3933
7. Remove the surge tank inlet hose clamp from the surge tank. 8. Disconnect the surge tank inlet
hose from the surge tank.
9. Remove the surge tank bolts from the surge tank.
10. Lift the surge tank to gain access to the heater outlet hose. 11. Remove the heater outlet hose
clamp from the surge tank. 12. Remove the heater outlet hose from the surge tank. 13. Remove
the surge tank from the vehicle. 14. Remove the heater outlet hose clamp from the hose. This will
aid in routing the heater outlet hose from the vehicle. 15. Remove the heater outlet hose from the
vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Heater Hose > Component Information >
Service and Repair > Heater Inlet Hose Replacement > Page 3934
1. Install the heater outlet hose to the vehicle. Route the hose into position for attachment to the
surge tank. 2. Install the heater outlet hose clamp to the hose. 3. Install the heater outlet hose to
the surge tank. 4. Install the surge tank to the vehicle.
Notice: Refer to Fastener Notice.
5. Install the surge tank bolts to the surge tank.
Tighten the bolts to 8 N.m (71 lb in).
6. Connect the surge tank inlet hose to the surge tank. 7. Install the surge tank inlet hose clamp to
the surge tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Heater Hose > Component Information >
Service and Repair > Heater Inlet Hose Replacement > Page 3935
8. Install the heater outlet hose (1) to the engine. 9. Install the heater outlet hose clamp to the
engine.
10. Install the heater outlet hose (1) to the heater core. 11. Install the heater outlet hose clamp to
the heater core. 12. Fill the engine coolant. Refer to Draining and Filling Cooling System (Static Fill)
Draining and Filling Cooling System (GE 47716 Fill).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator > Radiator Drain Plug >
Component Information > Service and Repair
Radiator Drain Plug: Service and Repair
Radiator Drain Cock Replacement
Tools Required
GE-47716 Vac N Fill Coolant Refill Tool
Removal Procedure
1. Drain the radiator. 2. Unscrew the drain plug from the radiator end tank. 3. Remove and discard
the O-ring.
Installation Procedure
1. Install the new O-ring.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator > Radiator Drain Plug >
Component Information > Service and Repair > Page 3940
2. Install and tighten the drain plug into the end tank drain hole. 3. Fill the radiator.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Cap > Component Information >
Testing and Inspection
Radiator Cap: Testing and Inspection
Pressure Cap Testing
Tools Required
* J 24460-01 Cooling System Pressure Tester
* J 42401 Radiator Cap/Surge Tank Test Adapter
Caution: To avoid being burned, do not remove the radiator cap or surge tank cap while the engine
is hot. The cooling system will release scalding fluid and steam under pressure if radiator cap or
surge tank cap is removed while the engine and radiator are still hot.
1. Remove the pressure cap. 2. Wash the pressure cap sealing surface with water.
3. Use the J 24460-01 (1) with J 42401 (2) in order to test the pressure cap. 4. Test the pressure
cap for the following conditions:
* Pressure release when the J 24460-01 exceeds the pressure rating of the pressure cap.
* Maintain the rated pressure for at least 10 seconds. Note the rate of pressure loss.
5. Replace the pressure cap under the following conditions:
* The pressure cap does not release pressure which exceeds the rated pressure of the cap.
* The pressure cap does not hold the rated pressure.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Hose > Component Information
> Service and Repair > Radiator Inlet Hose Replacement
Radiator Hose: Service and Repair Radiator Inlet Hose Replacement
Radiator Inlet Hose Replacement (Chevrolet)
Removal Procedure
1. Drain the coolant. 2. Remove the upper fascia retainers from the radiator support. 3. Remove the
upper radiator bracket bolt from the radiator support. 4. Remove the upper radiator bracket from
the radiator. 5. Remove the radiator inlet hose clamp from the radiator.
6. Remove the radiator inlet hose from the radiator.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Hose > Component Information
> Service and Repair > Radiator Inlet Hose Replacement > Page 3948
7. Remove the radiator inlet hose clamp from the engine. 8. Remove the radiator inlet hose from
the engine.
Installation Procedure
1. Install the radiator inlet hose to the engine. 2. Install the radiator inlet hose clamp to the engine.
3. Install the radiator inlet hose to the radiator.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Hose > Component Information
> Service and Repair > Radiator Inlet Hose Replacement > Page 3949
4. Install the radiator inlet hose clamp to the radiator. 5. Install the upper radiator bracket to the
radiator.
Notice: Refer to Fastener Notice .
6. Install the upper radiator bracket bolt to the radiator support.
Tighten the bolt to 20 N.m (15 lb ft).
7. Install the upper fascia retainers to the radiator support. 8. Fill the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Hose > Component Information
> Service and Repair > Radiator Inlet Hose Replacement > Page 3950
Radiator Hose: Service and Repair Radiator Outlet Hose Replacement
Radiator Outlet Hose Replacement
Removal Procedure
1. Drain the coolant. 2. Remove the radiator outlet hose clamp from the engine. 3. Remove the
radiator outlet hose from the engine.
4. Raise and support the vehicle. 5. Remove the radiator outlet hose clamp from the radiator. 6.
Remove the radiator outlet hose from the radiator.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Radiator Hose > Component Information
> Service and Repair > Radiator Inlet Hose Replacement > Page 3951
1. Install the radiator outlet hose to the radiator. 2. Install the radiator outlet hose clamp to the
radiator. 3. Lower the vehicle.
4. Install the radiator outlet hose to the engine. 5. Install the radiator outlet hose clamp to the
engine. 6. Fill the cooling system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Sensors and Switches - Cooling System
> Engine - Coolant Temperature Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component
Information > Specifications
Temperature Versus Resistance
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Sensors and Switches - Cooling System
> Engine - Coolant Temperature Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component
Information > Specifications > Page 3957
Rear Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Sensors and Switches - Cooling System
> Engine - Coolant Temperature Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component
Information > Specifications > Page 3958
Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Engine coolant must be drained below the level of the engine coolant temperature (ECT) sensor.
Refer to Draining and Filling Cooling System
(Static Fill) Draining and Filling Cooling System (GE 47716 Fill).
2. Disconnect the ECT sensor harness connector. 3. Remove the ECT sensor.
INSTALLATION PROCEDURE
1. IMPORTANT: Tap out sensor mounting hole in engine head to remove any thread sealant
residue. Clean any sealant residue from old sensor if the sensor is going to be reused.
If the sensor is being reused, apply thread sealant GM P/N 12345382 (Canadian P/N 10953489) or
equivalent, to sensor threads.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the ECT sensor.
Tighten the engine coolant temperature sensor to 23 N.m (17 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Sensors and Switches - Cooling System
> Engine - Coolant Temperature Sensor/Switch > Coolant Temperature Sensor/Switch (For Computer) > Component
Information > Specifications > Page 3959
3. Connect the ECT sensor harness connector. Push in the connector until a click is heard, then
pull back to confirm a positive engagement. 4. Fill engine coolant to proper level. Refer to Draining
and Filling Cooling System (Static Fill) Draining and Filling Cooling System (GE 47716
Fill).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Thermostat, Engine Cooling >
Component Information > Specifications
Thermostat: Specifications
Thermostat Full Open Temperature ....................................................................................................
.............................................................. 91°C 195°F
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Thermostat, Engine Cooling >
Component Information > Specifications > Page 3963
Thermostat: Service and Repair
Thermostat Replacement
Removal Procedure
1. Remove the fuel injector sight shield. 2. Drain the coolant until the coolant level is below the
thermostat. 3. Remove the crossover exhaust pipe. 4. Remove the radiator hose from the
thermostat housing.
5. Remove the thermostat housing bolts (2) and clean any sealer from the bolt threads. 6. Remove
the thermostat housing (1). 7. Remove the thermostat (3). 8. Clean the mating surfaces.
Installation Procedure
1. Install the thermostat (3). 2. Install the thermostat housing (1). 3. Install RTV sealer, GM P/N
12378478 (Canadian P/N 88900041) or the equivalent, to the thermostat housing bolt threads.
Notice: Refer to Fastener Notice .
4. Install the thermostat housing bolts (2).
Tighten the bolts to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Thermostat, Engine Cooling >
Component Information > Specifications > Page 3964
5. Install the radiator hose to the thermostat housing. 6. Install the crossover exhaust pipe. 7. Install
the fuel injector sight shield. 8. Fill the cooling system. 9. Inspect the cooling system for leaks.
Repair as necessary.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Thermostat Housing, Engine Cooling >
Component Information > Service and Repair
Thermostat Housing: Service and Repair
Engine Coolant Thermostat Housing Replacement
Removal Procedure
1. Remove the fuel injector sight shield. 2. Drain the coolant until the coolant level is below the
thermostat. 3. Remove the crossover exhaust pipe. 4. Remove the radiator hose from the
thermostat housing.
5. Remove the thermostat housing bolts (2) and clean any sealer from the bolt threads. 6. Remove
the thermostat housing (1). 7. Remove the thermostat (3). 8. Clean the mating surfaces.
Installation Procedure
1. Install the thermostat (3). 2. Install the thermostat housing (1). 3. Install RTV sealer, GM P/N
12378478 (Canadian P/N 88900041) or the equivalent, to the thermostat housing bolt threads.
Notice: Refer to Fastener Notice .
4. Install the thermostat housing bolts (2).
Tighten the bolts to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Thermostat Housing, Engine Cooling >
Component Information > Service and Repair > Page 3968
5. Install the radiator hose to the thermostat housing. 6. Install the crossover exhaust pipe. 7. Install
the fuel injector sight shield. 8. Fill the cooling system. 9. Inspect the cooling system for leaks.
Repair as necessary.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Water Pump > Component Information >
Specifications
Water Pump: Specifications
Water Pump Bolt .................................................................................................................................
.......................................................... 11 N.m 98 lb in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Water Pump > Component Information >
Specifications > Page 3972
Water Pump: Service and Repair
Water Pump Replacement
Tools Required
J 39914 Serpentine Belt Tensioner Unloader
Removal Procedure
1. Drain the cooling system until the coolant is below the level of the water pump.
2. Loosen the water pump pulley bolts (4). 3. Using the J 39914 rotate the drive belt tensioner (8) to
release the tension on the drive belt. 4. Remove the drive belt from the right idler pulley (2). 5.
Carefully release the J 39914 to relieve the drive belt tensioner spring tension. 6. Remove the J
39914 from the drive belt tensioner (8).
7. Remove the water pump pulley bolts (2). 8. Remove the water pump pulley (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Water Pump > Component Information >
Specifications > Page 3973
9. Remove the water pump bolts (3).
10. Remove the water pump (1). 11. Remove the water pump gasket (2). 12. Clean the water pump
mating surfaces.
Installation Procedure
1. Install the water pump gasket (2). 2. Install the water pump (1).
Notice: Refer to Fastener Notice .
3. Install the water pump bolts (3).
Tighten the bolts to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Cooling System > Water Pump > Component Information >
Specifications > Page 3974
4. Install the water pump pulley (1). Loosely install the pulley bolts (2).
5. Insure the drive belt is properly centered on all the pulleys except the right idler puller (3). 6.
Using the J 39914 rotate the drive belt tensioner away from the drive belt. 7. Install the drive belt to
the right idler pulley (2). 8. Carefully release the J 39914 allowing the drive belt tensioner (8) to
come in contact with the drive belt. 9. Remove the J 39914 from the drive belt tensioner (8).
10. Inspect the drive belt to insure the belt is properly centered on all the pulleys (1-8). 11. Tighten
the water pump pulley bolts.
Tighten the bolts to 25 N.m (18 lb ft).
12. Fill the cooling system. 13. Inspect the cooling system for leaks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Catalytic Converter > Component
Information > Technical Service Bulletins > Exhaust System - Catalytic Converter Precautions
Catalytic Converter: Technical Service Bulletins Exhaust System - Catalytic Converter Precautions
Bulletin No.: 06-06-01-010A
Date: February 04, 2008
INFORMATION
Subject: Information on Close-Coupled Converter and Engine Breakdown or Non-Function Due to
Severe Overheat or Lack of Oil Causing Piston(s) Connecting Rod(s) Crankshaft Cylinder(s) and/or
Head(s) Camshaft(s) Intake and/or Exhaust Valve(s) Main and/or Rod Bearing(s) Damage
Models: 2004-2008 GM Passenger Cars and Trucks
with Close-Coupled Catalytic Converters
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
06-06-01-010 (Section 06 - Engine/Propulsion System).
Certain 2004-2008 General Motors products may be equipped with a new style of catalytic
converter technically known as the close-coupled catalytic converter providing quick catalyst
warm-up resulting in lower tail pipe emissions earlier in the vehicle operating cycle.
If an engine breakdown or non-function were to occur (such as broken intake/exhaust valve or
piston) debris may be deposited in the converter through engine exhaust ports. If the engine is
non-functioning due to a severe overheat event damage to the ceramic "brick" internal to the
catalytic converter may occur. This may result in ceramic debris being drawn into the engine
through the cylinder head exhaust ports.
If a replacement engine is installed in either of these instances the replacement engine may fail
due to the debris being introduced into the combustion chambers when started.
When replacing an engine for a breakdown or non-function an inspection of the catalytic converters
and ALL transferred components (such as exhaust/ intake manifolds) should be performed. Any
debris found should be removed. In cases of engine failure due to severe overheat dealers should
also inspect each catalytic converter for signs of melting or cracking of the ceramic "brick". If
damage is observed the converter should be replaced.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Catalytic Converter > Component
Information > Technical Service Bulletins > Page 3980
Catalytic Converter: Service Precautions
Three-Way Catalytic Converter Damage Notice
Notice: In order to avoid damaging the replacement three-way catalytic converter, correct the
engine misfire or mechanical fault before replacing the three-way catalytic converter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Catalytic Converter > Component
Information > Technical Service Bulletins > Page 3981
Catalytic Converter: Service and Repair
Catalytic Converter Replacement
Removal Procedure
1. Raise and suitably support the vehicle.
2. Disconnect the heated oxygen sensor (HO2S) connector (2) from the wiring harness (3).
3. Remove the catalytic converter pipe flange to exhaust system pipe flange nuts. 4. Separate the
pipes and discard the gasket.
Important: Catalytic converter flex coupler must NEVER be deflected more than 6 degrees or
failure of flex coupler could result.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Catalytic Converter > Component
Information > Technical Service Bulletins > Page 3982
5. Remove the nuts (3) securing the catalytic converter (4) to the exhaust manifold. 6. Separate the
catalytic converter flange from the exhaust manifold and discard the gasket (2).
7. Separate the catalytic converter hanger from the rubber isolator and remove the catalytic
converter from the vehicle.
8. Remove the exhaust manifold studs (1) if worn or damaged. 9. If replacing the catalytic
converter, remove the HO2S.
Installation Procedure
1. Install the HO2S, if previously removed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Catalytic Converter > Component
Information > Technical Service Bulletins > Page 3983
Notice: Refer to Fastener Notice .
2. Install the exhaust manifold studs (1) if previously removed.
Tighten the studs to 6 N.m (53 lb in).
3. Install the rubber isolator and to the catalytic converter hanger.
Notice: To prevent internal damage to the flexible coupling of the catalytic converter assembly, the
converter must be supported. The vertical movement at the rear of the catalytic converter assembly
must not exceed 6 degrees up or down.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Catalytic Converter > Component
Information > Technical Service Bulletins > Page 3984
4. Install a new gasket (2) and attach the catalytic converter (4) to the exhaust manifold. 5. Install
the catalytic converter to the exhaust manifold nuts (3).
Tighten the nuts to 37 N.m (27 lb ft).
6. Install a new exhaust pipe flange gasket to the catalytic converter flange. 7. Install the exhaust
pipe to the catalytic converter pipe. with the catalytic converter nuts. 8. Install the exhaust pipe to
the catalytic converter pipe .
Tighten the nuts to 37 N.m (27 lb ft).
9. Connect the HO2S connector (2) to the wiring harness (3).
10. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Exhaust Manifold > Component
Information > Specifications
Exhaust Manifold: Specifications
Exhaust Manifold Nut ..........................................................................................................................
.......................................................... 16 N.m 12 lb ft
Exhaust Manifold Stud .........................................................................................................................
......................................................... 18 N.m 13 lb ft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Exhaust Manifold > Component
Information > Service and Repair > Exhaust Manifold Replacement - Left Side
Exhaust Manifold: Service and Repair Exhaust Manifold Replacement - Left Side
Exhaust Manifold Replacement - Left Side
Removal Procedure
1. Remove the 3 nuts attaching the exhaust crossover pipe to the left exhaust manifold. 2. Remove
the exhaust gas recirculation (EGR) pipe.
3. Remove the exhaust manifold heat shield bolts (2). 4. Remove the exhaust manifold heat shield
(1).
5. Remove the exhaust manifold nuts (3). 6. Remove the exhaust manifold (2). 7. Remove the
exhaust manifold gasket (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Exhaust Manifold > Component
Information > Service and Repair > Exhaust Manifold Replacement - Left Side > Page 3990
8. If necessary, remove the exhaust manifold studs. 9. Clean the exhaust manifold and the cylinder
head exhaust manifold sealing surfaces.
Installation Procedure
Notice: Refer to Fastener Notice .
1. If previously removed, install the exhaust manifold studs.
Tighten the studs to 18 N.m (13 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Exhaust Manifold > Component
Information > Service and Repair > Exhaust Manifold Replacement - Left Side > Page 3991
2. Install the exhaust manifold gasket (1). 3. Install the exhaust manifold (2). 4. Install the exhaust
manifold nuts (3).
Tighten the nuts to 16 N.m (12 lb ft).
5. Install the exhaust manifold heat shield (1). 6. Install the exhaust manifold heat shield bolts (2).
Tighten the bolts to 10 N.m (89 lb in).
7. Install the EGR pipe. 8. Install the 3 nuts attaching the exhaust crossover pipe to the left exhaust
manifold.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Exhaust Manifold > Component
Information > Service and Repair > Exhaust Manifold Replacement - Left Side > Page 3992
Exhaust Manifold: Service and Repair Exhaust Manifold Replacement - Right Side
Exhaust Manifold Replacement - Right Side
Removal Procedure
1. Disconnect the oxygen sensor electrical connector. 2. Remove the 3 nuts attaching exhaust
crossover pipe to the right exhaust manifold. 3. Raise and support the vehicle.
4. Remove the nuts (3) securing the catalytic converter (4) to the exhaust manifold and position
catalytic converter out of the way.
5. Remove the exhaust manifold heat shield bolts (3). 6. Remove the exhaust manifold heat shields
(1, 2).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Exhaust Manifold > Component
Information > Service and Repair > Exhaust Manifold Replacement - Left Side > Page 3993
7. Remove the exhaust manifold nuts (3). 8. Remove the exhaust manifold (2). 9. Remove the
exhaust manifold gasket (1).
10. If you are REPLACING the engine right side exhaust manifold, remove the heated oxygen
sensor (HO2S).
11. If necessary, remove the exhaust manifold studs. 12. Clean the exhaust manifold and the
cylinder head exhaust manifold sealing surfaces.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Exhaust Manifold > Component
Information > Service and Repair > Exhaust Manifold Replacement - Left Side > Page 3994
Notice: Refer to Fastener Notice .
1. If previously removed, install the exhaust manifold studs.
Tighten the studs to 18 N.m (13 lb ft).
2. If removed, install the HO2S.
3. Install the exhaust manifold gasket (1). 4. Install the exhaust manifold (2). 5. Install the exhaust
manifold nuts (3).
Tighten the nuts to 16 N.m (12 lb ft).
6. Install the exhaust manifold upper heat shield (1). 7. Install the exhaust manifold lower heat
shield (2). 8. Install the exhaust manifold heat shield bolts (3).
Tighten the bolts to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Exhaust Manifold > Component
Information > Service and Repair > Exhaust Manifold Replacement - Left Side > Page 3995
9. Install the catalytic converter (4) to the exhaust manifold and install the nuts (3).
10. Lower the vehicle. 11. Install the exhaust crossover pipe nuts to the right side exhaust manifold.
12. Connect the HO2S electrical connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Exhaust Pipe > Component Information
> Service and Repair
Exhaust Pipe: Service and Repair
Exhaust Crossover Pipe Replacement
Removal Procedure
1. Remove the battery box.
2. Remove the exhaust crossover pipe nuts (2). 3. Remove the exhaust crossover pipe (3). 4.
Remove the exhaust manifold studs (1), if replacement of the stud is necessary.
Installation Procedure
Notice: Refer to Fastener Notice .
1. Install any previously removed exhaust manifold studs (1).
Tighten the studs to 25 N.m (18 lb ft).
2. Install the exhaust crossover pipe (3).
Important: Maintain approximately 6.35 mm (0.25 in) between the thermostat housing and the
exhaust crossover pipe.
3. Install the exhaust crossover pipe nuts (2).
Tighten the nuts to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Exhaust Pipe > Component Information
> Service and Repair > Page 3999
4. Install the battery box.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Heat Shield, Exhaust > Component
Information > Service and Repair > Fuel Tank Heat Shield Replacement
Heat Shield: Service and Repair Fuel Tank Heat Shield Replacement
Fuel Tank Heat Shield Replacement
Removal Procedure
1. Remove the fuel tank.
2. Remove the fuel tank shield from the fuel tank.
Installation Procedure
1. Install the fuel tank shield to the fuel tank.
2. Install the fuel tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Heat Shield, Exhaust > Component
Information > Service and Repair > Fuel Tank Heat Shield Replacement > Page 4004
Heat Shield: Service and Repair Exhaust Manifold Heat Shield Replacement - Right Side
Exhaust Manifold Heat Shield Replacement - Right Side
1. Remove the heat shield bolts (3). 2. Remove the lower heat shield (2) from the exhaust manifold.
3. Remove the upper heat shield (1) from the exhaust manifold.
Installation Procedure
1. Install the upper heat shield (1) to the exhaust manifold. 2. Install the lower heat shield (2) to the
exhaust manifold.
Notice: Refer to Fastener Notice .
3. Install the heat shield bolts to the exhaust manifold.
Tighten the bolts to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Heat Shield, Exhaust > Component
Information > Service and Repair > Fuel Tank Heat Shield Replacement > Page 4005
Heat Shield: Service and Repair Exhaust Manifold Heat Shield Replacement - Left Side
Exhaust Manifold Heat Shield Replacement - Left Side
1. Remove the heat shield bolts (3). 2. Remove the heat shield (2) from the exhaust manifold.
Installation Procedure
1. Install the heat shield (1) to the exhaust manifold.
Notice: Refer to Fastener Notice .
2. Install the heat shield bolts to the exhaust manifold.
Tighten the bolts to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Heat Shield, Exhaust > Component
Information > Service and Repair > Fuel Tank Heat Shield Replacement > Page 4006
Heat Shield: Service and Repair Exhaust Heat Shield Replacement - Front
Exhaust Heat Shield Replacement - Front
Removal Procedure
1. Raise the vehicle. 2. Remove the catalytic converter.
Important: The front and rear heat shields overlap and utilize common rivet attachment points.
3. Remove the nut and rivets. 4. Remove the heat shield.
Installation Procedure
1. Position the shield to the vehicle, aligning the front hole stud. Place the rear of the shield under
the rear shield and against the underbody.
Notice: Refer to Fastener Notice .
2. Install the nut and tighten.
Tighten the heat shield-to-underbody nut to 10 N.m (89 lb in).
3. Install the rivets. 4. Install the catalytic converter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Heat Shield, Exhaust > Component
Information > Service and Repair > Fuel Tank Heat Shield Replacement > Page 4007
Heat Shield: Service and Repair Exhaust Heat Shield Replacement - Center
Exhaust Heat Shield Replacement - Center
Removal Procedure
1. Raise the vehicle. 2. Remove the exhaust system.
3. If vehicle is equipped with all wheel drive (AWD) remove the propeller shaft underbody guard
loop bolts and guard loop.
Important: Support the fuel tank before removing the fuel tank strap bolt.
4. Remove the fuel tank strap bolt, which also fastens the rear of the center heat shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Heat Shield, Exhaust > Component
Information > Service and Repair > Fuel Tank Heat Shield Replacement > Page 4008
Important: The front and rear heat shields overlap and utilize common rivet attachment points.
5. Remove the rivets. 6. Remove the shield.
Installation Procedure
1. Position the shield to the vehicle, aligning the front rivet locations which are common attachment
points with the front heat shield. 2. Install the rivets.
Notice: Refer to Fastener Notice .
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Engine, Cooling and Exhaust > Exhaust System > Heat Shield, Exhaust > Component
Information > Service and Repair > Fuel Tank Heat Shield Replacement > Page 4009
3. Install the fuel tank strap bolt and tighten.
Tighten the bolt to 25 N.m (18 lb ft).
4. If vehicle is equipped with AWD install the propeller shaft underbody guard loop and bolts.
Tighten the bolts to 25 N.m (18 lb ft).
5. Install the exhaust system. 6. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> Customer Interest: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn Signal Lever Inop
Body Control Module: Customer Interest Wipers - Wipers Work On One Speed/Turn Signal Lever
Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> Customer Interest: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn Signal Lever Inop > Page
4021
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> Customer Interest: > 06-06-03-009 > Oct > 06 > Electrical - Battery Goes Dead Overnight
Body Control Module: Customer Interest Electrical - Battery Goes Dead Overnight
Bulletin No.: 06-06-03-009
Date: October 19, 2006
INFORMATION
Subject: Diagnostic Information on Battery Draw No Start - Body Control Module, BCM Power
Timer
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2006-2007 Chevrolet Impala, Monte
Carlo 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Tahoe, Silverado, Suburban 2007 GMC Sierra, Yukon, Yukon XL, Denali, Denali XL 2007
Pontiac Torrent
When performing normal diagnosis on a battery that has gone dead overnight, a technician may
notice that the vehicle has approximately 4.1 amp draw on the system. The draw may be steady or
may drop down to a low milliamp reading for 1-2 seconds and then rise back up to the 4.1 amp
range. If this amp draw condition is observed, check for aftermarket accessories or an improperly
installed GM accessory that is wired into circuit 6815 (orange wire) for courtesy lamps. Anytime
aftermarket accessories are installed into the courtesy lamp circuit, it can cause the inadvertent
power timer in the body control module (BCM) to keep resetting. The BCM will remain awake and
cause the draw of approximately 4.1 amps.
When servicing a vehicle with this concern, back out pin 1 of the connector 2 at the BCM and see if
the draw goes away. If the draw goes away, check for an aftermarket accessory (Lojack,
non-factory DVD system, alarm, etc.) that is improperly installed in circuit 6815.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins for Body Control Module: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To
Reprogram Body Control Module
Body Control Module: All Technical Service Bulletins Body Controls - Unable To Reprogram Body
Control Module
INFORMATION
Bulletin No.: 09-08-47-001A
Date: June 14, 2010
Subject: Unable to Reprogram Body Control Module (BCM), BCM Reprogramming Did Not
Complete - Revised Reprogramming Instructions
Models:
2006-2010 Buick Lucerne 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade, Escalade ESV,
Escalade EXT, SRX 2008-2010 Cadillac CTS 2010 Cadillac CTS Wagon 2010 Chevrolet Camaro
2006-2007 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala 2007-2010 Chevrolet Avalanche,
Equinox, Silverado, Suburban, Tahoe 2008-2010 Chevrolet Express 2009-2010 Chevrolet
Traverse 2007-2010 GMC Acadia, Sierra, Yukon, Yukon XL, Yukon Denali, Yukon Denali XL
2008-2010 GMC Savana 2010 GMC Terrain 2007-2009 Pontiac Torrent 2008-2009 Pontiac G8
2008-2009 HUMMER H2 2007-2009 Saturn OUTLOOK 2008-2009 Saturn VUE Refer to GMVIS
Supercede: This bulletin is being revised to update the models and the model years. Please
discard Corporate Bulletin Number 09-08-47-001 (Section 08 - Body and Accessories).
Some technicians may experience an unsuccessful body control module (BCM) reprogramming
event, when choosing the Reprogram ECU selection on the Service Programming System (SPS).
The technician may also notice that when attempting to reprogram the BCM again after this
incident has occurred, the BCM may not complete the programming event.
This condition may be caused by the following:
- A reprogramming event that was interrupted due to a lack of communication between the vehicle
and the TIS2WEB terminal.
- The vehicle experienced low system voltage during the reprogramming event.
Important Do not replace the BCM for this condition.
SPS Programming Process Selection
Perform this procedure first.
1. If reprogramming has failed during the initial reprogramming event, back out of the SPS
application completely. 2. Re-select SPS from the TIS2WEB terminal application. 3. When
selecting the Programming Process , choose Replace and Program ECU , even though a new
BCM is NOT being installed. 4. Reprogram the BCM using the Service Programming System (SPS)
with the latest calibration available on TIS2WEB. Refer to the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins for Body Control Module: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To
Reprogram Body Control Module > Page 4031
During programming, the battery voltage must be maintained within the proper range of 12-15
volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
BCM Still Fails to Reprogram
If the BCM still fails to reprogram perform this procedure:
1. Turn OFF the ignition, and remove the key. 2. Remove the fuses that power up the following
modules/components for a minimum of 2 minutes:
- BCM
- EBCM
- ECM
- IS LPS (located in the left IP fusebox)
- TCM
3. Open and close the driver door. Allow enough time for the retained accessory power (RAP) to
turn OFF. 4. Reinstall the fuses. 5. When selecting the Programming Process , choose Replace
and Program ECU , even though a new BCM is NOT being installed. 6. Reprogram the BCM using
the Service Programming System (SPS) with the latest calibration available on TIS2WEB. Refer to
the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins for Body Control Module: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control
Module (BCM) Grounds
Body Control Module: All Technical Service Bulletins Body Controls - Body Control Module (BCM)
Grounds
INFORMATION
Bulletin No.: 07-08-47-004C
Date: December 04, 2009
Subject: Information on Body Control Module (BCM) Grounds
Models:
2006-2010 Buick Lucerne 2007-2010 Buick Enclave 2006-2010 Cadillac DTS 2007-2009 Cadillac
SRX 2008-2010 Cadillac CTS 2006-2008 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala
2007-2009 Chevrolet Equinox 2008-2010 Chevrolet Express, Traverse 2007-2010 GMC Acadia
2008-2010 GMC Savana 2007-2009 Pontiac Torrent 2007-2010 Saturn OUTLOOK 2008-2010
Saturn VUE 2008-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models, model years and information.
Please discard Corporate Bulletin Number 07-08-47-004B (Section 08 - Body & Accessories).
The purpose of this bulletin is to inform dealers of an issue that could cause internal module
damage to the Body Control Module (BCM).
The BCM may be damaged when the module is supplied with battery power and the ground path is
removed. You must remove the negative battery cable first before removing a BCM ground.
Issue 1
Below is a list of vehicles and the components that the BCM ground path passes through. The
negative battery cable must be removed when removing the components noted below.
- 2008-2010 HUMMER H2 (Instrument panel electrical center)
- 2008-2010 Saturn VUE (I/P splice pack)
Issue 2
It is important to note when removing a ring terminal ground, splice pack connector, or inline
harness connector for all the vehicles listed in the model section above, that it doesn't include a
BCM ground path. You must remove the negative battery cable if you determine that it is a BCM
ground path.
As an example: If the BCM grounds become disconnected, internal damage to the BCM will occur.
Other systems controlled by the BCM will also be affected, such as an inoperative or intermittent
condition in one or more of the following systems:
- Interior lighting will remain on or will not work
- Exterior lighting will remain on or will not work
- Remote keyless entry
- Door locks
- Power windows and mirrors
- Remote vehicle start
- Remote trunk release
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins for Body Control Module: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control
Module (BCM) Grounds > Page 4036
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins for Body Control Module: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One
Speed/Turn Signal Lever Inop
Body Control Module: All Technical Service Bulletins Wipers - Wipers Work On One Speed/Turn
Signal Lever Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins for Body Control Module: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One
Speed/Turn Signal Lever Inop > Page 4041
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Technical Service Bulletins for Body Control Module: > 06-06-03-009 > Oct > 06 > Electrical - Battery Goes Dead
Overnight
Body Control Module: All Technical Service Bulletins Electrical - Battery Goes Dead Overnight
Bulletin No.: 06-06-03-009
Date: October 19, 2006
INFORMATION
Subject: Diagnostic Information on Battery Draw No Start - Body Control Module, BCM Power
Timer
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2006-2007 Chevrolet Impala, Monte
Carlo 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Tahoe, Silverado, Suburban 2007 GMC Sierra, Yukon, Yukon XL, Denali, Denali XL 2007
Pontiac Torrent
When performing normal diagnosis on a battery that has gone dead overnight, a technician may
notice that the vehicle has approximately 4.1 amp draw on the system. The draw may be steady or
may drop down to a low milliamp reading for 1-2 seconds and then rise back up to the 4.1 amp
range. If this amp draw condition is observed, check for aftermarket accessories or an improperly
installed GM accessory that is wired into circuit 6815 (orange wire) for courtesy lamps. Anytime
aftermarket accessories are installed into the courtesy lamp circuit, it can cause the inadvertent
power timer in the body control module (BCM) to keep resetting. The BCM will remain awake and
cause the draw of approximately 4.1 amps.
When servicing a vehicle with this concern, back out pin 1 of the connector 2 at the BCM and see if
the draw goes away. If the draw goes away, check for an aftermarket accessory (Lojack,
non-factory DVD system, alarm, etc.) that is improperly installed in circuit 6815.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Other Service Bulletins for Body Control Module: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To Reprogram
Body Control Module
Body Control Module: All Technical Service Bulletins Body Controls - Unable To Reprogram Body
Control Module
INFORMATION
Bulletin No.: 09-08-47-001A
Date: June 14, 2010
Subject: Unable to Reprogram Body Control Module (BCM), BCM Reprogramming Did Not
Complete - Revised Reprogramming Instructions
Models:
2006-2010 Buick Lucerne 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade, Escalade ESV,
Escalade EXT, SRX 2008-2010 Cadillac CTS 2010 Cadillac CTS Wagon 2010 Chevrolet Camaro
2006-2007 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala 2007-2010 Chevrolet Avalanche,
Equinox, Silverado, Suburban, Tahoe 2008-2010 Chevrolet Express 2009-2010 Chevrolet
Traverse 2007-2010 GMC Acadia, Sierra, Yukon, Yukon XL, Yukon Denali, Yukon Denali XL
2008-2010 GMC Savana 2010 GMC Terrain 2007-2009 Pontiac Torrent 2008-2009 Pontiac G8
2008-2009 HUMMER H2 2007-2009 Saturn OUTLOOK 2008-2009 Saturn VUE Refer to GMVIS
Supercede: This bulletin is being revised to update the models and the model years. Please
discard Corporate Bulletin Number 09-08-47-001 (Section 08 - Body and Accessories).
Some technicians may experience an unsuccessful body control module (BCM) reprogramming
event, when choosing the Reprogram ECU selection on the Service Programming System (SPS).
The technician may also notice that when attempting to reprogram the BCM again after this
incident has occurred, the BCM may not complete the programming event.
This condition may be caused by the following:
- A reprogramming event that was interrupted due to a lack of communication between the vehicle
and the TIS2WEB terminal.
- The vehicle experienced low system voltage during the reprogramming event.
Important Do not replace the BCM for this condition.
SPS Programming Process Selection
Perform this procedure first.
1. If reprogramming has failed during the initial reprogramming event, back out of the SPS
application completely. 2. Re-select SPS from the TIS2WEB terminal application. 3. When
selecting the Programming Process , choose Replace and Program ECU , even though a new
BCM is NOT being installed. 4. Reprogram the BCM using the Service Programming System (SPS)
with the latest calibration available on TIS2WEB. Refer to the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Other Service Bulletins for Body Control Module: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To Reprogram
Body Control Module > Page 4051
During programming, the battery voltage must be maintained within the proper range of 12-15
volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
BCM Still Fails to Reprogram
If the BCM still fails to reprogram perform this procedure:
1. Turn OFF the ignition, and remove the key. 2. Remove the fuses that power up the following
modules/components for a minimum of 2 minutes:
- BCM
- EBCM
- ECM
- IS LPS (located in the left IP fusebox)
- TCM
3. Open and close the driver door. Allow enough time for the retained accessory power (RAP) to
turn OFF. 4. Reinstall the fuses. 5. When selecting the Programming Process , choose Replace
and Program ECU , even though a new BCM is NOT being installed. 6. Reprogram the BCM using
the Service Programming System (SPS) with the latest calibration available on TIS2WEB. Refer to
the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Other Service Bulletins for Body Control Module: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control Module
(BCM) Grounds
Body Control Module: All Technical Service Bulletins Body Controls - Body Control Module (BCM)
Grounds
INFORMATION
Bulletin No.: 07-08-47-004C
Date: December 04, 2009
Subject: Information on Body Control Module (BCM) Grounds
Models:
2006-2010 Buick Lucerne 2007-2010 Buick Enclave 2006-2010 Cadillac DTS 2007-2009 Cadillac
SRX 2008-2010 Cadillac CTS 2006-2008 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala
2007-2009 Chevrolet Equinox 2008-2010 Chevrolet Express, Traverse 2007-2010 GMC Acadia
2008-2010 GMC Savana 2007-2009 Pontiac Torrent 2007-2010 Saturn OUTLOOK 2008-2010
Saturn VUE 2008-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models, model years and information.
Please discard Corporate Bulletin Number 07-08-47-004B (Section 08 - Body & Accessories).
The purpose of this bulletin is to inform dealers of an issue that could cause internal module
damage to the Body Control Module (BCM).
The BCM may be damaged when the module is supplied with battery power and the ground path is
removed. You must remove the negative battery cable first before removing a BCM ground.
Issue 1
Below is a list of vehicles and the components that the BCM ground path passes through. The
negative battery cable must be removed when removing the components noted below.
- 2008-2010 HUMMER H2 (Instrument panel electrical center)
- 2008-2010 Saturn VUE (I/P splice pack)
Issue 2
It is important to note when removing a ring terminal ground, splice pack connector, or inline
harness connector for all the vehicles listed in the model section above, that it doesn't include a
BCM ground path. You must remove the negative battery cable if you determine that it is a BCM
ground path.
As an example: If the BCM grounds become disconnected, internal damage to the BCM will occur.
Other systems controlled by the BCM will also be affected, such as an inoperative or intermittent
condition in one or more of the following systems:
- Interior lighting will remain on or will not work
- Exterior lighting will remain on or will not work
- Remote keyless entry
- Door locks
- Power windows and mirrors
- Remote vehicle start
- Remote trunk release
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins
> All Other Service Bulletins for Body Control Module: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control Module
(BCM) Grounds > Page 4056
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1
Body Control Module: Diagrams Body Control Module - C1
Body Control Module - C1 (Pin 1 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4059
Body Control Module - C1 (Pin 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4060
Body Control Module: Diagrams Body Control Module - C2
Body Control Module - C2 (Pin 1 To 20)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4061
Body Control Module - C2 (Pin 21 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4062
Body Control Module: Diagrams Body Control Module - C3
Body Control Module - C3 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4063
Body Control Module - C3 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4064
Body Control Module: Diagrams Body Control Module - C4
Body Control Module - C4 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4065
Body Control Module - C4 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4066
Body Control Module: Diagrams
Body Control Module - C1 (Pin 1 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4067
Body Control Module - C1 (Pin 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4068
Body Control Module - C2 (Pin 1 To 20)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4069
Body Control Module - C2 (Pin 21 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4070
Body Control Module - C3 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4071
Body Control Module - C3 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4072
Body Control Module - C4 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4073
Body Control Module - C4 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4074
Body Control Module - C5 (Pin 1 To 17)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4075
Body Control Module - C5 (Pin 18 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4076
Body Control Module - C6 (Pin 1 To 18)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control
Module - C1 > Page 4077
Body Control Module - C6 (Pin 19 To 25)
Body Control Module - C7 (Pin 1 To 28)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Computers and Control Systems > Body Control Module > Component Information > Service and Repair > Body
Control Module Replacement
Body Control Module: Service and Repair Body Control Module Replacement
BODY CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: If data is not retrieved from the malfunctioning body control module (BCM),
additional time will be required to program the
replacement BCM.
Retrieve data from the malfunctioning BCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
2. Rotate the ignition switch to the OFF position.
3. Remove the radio bezel. 4. Disconnect the BCM electrical harnesses. 5. Remove the BCM from
the instrument panel (I/P) retainer:
1. Pry the BCM tabs from the locking tabs on the underside of the restraint. 2. Slide the BCM out of
the retainer.
INSTALLATION PROCEDURE
1. Install the BCM. 2. Install the radio bezel. 3. Slide the BCM tabs into the slots in the I/P retainer
until the tabs lock into place. 4. Connect the electrical connectors. 5. Program a new or a
remanufactured BCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
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Control Module Replacement > Page 4080
Body Control Module: Service and Repair Body Control Module (BCM) Programming/RPO
Configuration
BODY CONTROL MODULE (BCM) PROGRAMMING/RPO CONFIGURATION
INTRODUCTION
A new body control module (BCM) must be programmed with the latest operating software and
vehicle calibrations. Ensure that the following conditions exist in order to prepare for BCM
programming:
- The battery is fully charged.
- The ignition switch is in the ON position.
- The data link connector (DLC) is accessible.
- All disconnected modules and devices are connected.
PROGRAMMING THE BCM
IMPORTANT: The vehicle will not start and many other functions may not operate properly if a
replacement BCM is not properly set up. The following procedures must be followed:
1. Programming the BCM 2. Learning the restraints ID
IMPORTANT: After the procedure is completed, the personalization settings of the BCM are set to
default settings. Inform the customer that the personalization must be set again.
LEARNING THE RESTRAINTS ID
Navigate on the scan tool to Body Control Module > Module Setup > Setup SDM Primary Key in
BCM, then follow the instructions on the screen.
IMPORTANT: After programming, perform the following to avoid future misdiagnosis:
1. Turn the ignition OFF for 10 seconds. 2. Connect the scan tool to the data link connector. 3. Turn
the ignition ON, with the engine OFF. 4. Use the scan tool in order to retrieve history DTCs from all
modules. 5. Clear all history DTCs.
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Electronic Throttle Control Module: Locations
Air Induction Components
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Page 4084
Front Of The Engine
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Page 4085
Rear Of The Engine
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Bulletins > Engine Controls - Aftermarket Accessory Usage
Engine Control Module: Technical Service Bulletins Engine Controls - Aftermarket Accessory
Usage
INFORMATION
Bulletin No.: 04-06-04-054B
Date: November 18, 2010
Subject: Info - Non-GM Parts and Accessories (Aftermarket)
Models:
2011 and Prior GM Passenger Cars and Trucks
Supercede: This bulletin is being revised to add model years and update to the new U.S. Fixed
Operation Manager (FOM) and Canada Warranty Manager (WM) names. Please discard Corporate
Bulletin Number 04-06-04-054A (Section 06 - Engine/Propulsion System).
The recent rise and expansion of companies selling non-GM parts and accessories has made it
necessary to issue this reminder to dealers regarding GM's policy on the use and installation of
these aftermarket components.
When a dealer is performing a repair under the New Vehicle Limited Warranty, they are required to
use only genuine GM or GM-approved parts and accessories. This applies to all warranty repairs,
special policy repairs or any repairs paid for by GM. Parts and accessories advertised as being "the
same" as parts manufactured by GM, but not sold through GM, do not qualify for use in warranty
repairs, special policy repairs or any repairs paid for by GM.
During a warranty repair, if a GM original equipment part is not available through GM Customer
Care and Aftersales (GM CC&A;), ACDelco(R) distributors, other GM dealers or approved sources,
the dealer is to obtain comparable, non-GM parts and clearly indicate, in detail, on the repair order
the circumstances surrounding why non-GM parts were used. The dealer must give customers
written notice, prior to the sale or service, that such parts or accessories are not marketed or
warranted by General Motors.
It should also be noted that dealers modifying new vehicles and installing equipment, parts and
accessories obtained from sources not authorized by GM are responsible for complying with the
National Traffic and Motor Vehicle Safety Act. Certain non-approved parts or assemblies, installed
by the dealer or its agent not authorized by GM, may result in a change to the vehicle's design
characteristics and may affect the vehicle's ability to conform to federal law. Dealers must fully
understand that non-GM approved parts may not have been validated, tested or certified for use.
This puts the dealer at risk for potential liability in the event of a part or vehicle failure. If a GM part
failure occurs as the result of the installation or use of a non-GM approved part, the warranty will
not be honored.
A good example of non-authorized modification of vehicles is the result of an ever increasing
supply of aftermarket devices available to the customer, which claim to increase the horsepower
and torque of the Duramax(TM) Diesel Engines. These include the addition of, but are not limited to
one or more of the following modifications:
- Propane injection
- Nitrous oxide injection
- Additional modules (black boxes) that connect to the vehicle wiring systems
- Revised engine calibrations downloaded for the engine control module
- Calibration modules which connect to the vehicle diagnostic connector
- Modification to the engine turbocharger waste gate
Although the installation of these devices, or modification of vehicle components, can increase
engine horsepower and torque, they may also negatively affect the engine emissions, reliability
and/or durability. In addition, other powertrain components, such as transmissions, universal joints,
drive shafts, and front/rear axle components, can be stressed beyond design safety limits by the
installation of these devices.
General Motors does not support or endorse the use of devices or modifications that, when
installed, increase the engine horsepower and torque. It is because of these unknown stresses,
and the potential to alter reliability, durability and emissions performance, that GM has adopted a
policy that prevents any UNAUTHORIZED dealer warranty claim submissions to any remaining
warranty coverage, to the powertrain and driveline components whenever the presence of a
non-GM (aftermarket) calibration is confirmed - even if the non-GM control module calibration is
subsequently removed. Refer to the latest version of Bulletin 09-06-04-026 (V8 Gas Engines) or
06-06-01-007 (Duramax(TM) Diesel Engines) for more information on dealer requirements for
calibration verification.
These same policies apply as they relate to the use of non-GM accessories. Damage or failure
from the use or installation of a non-GM accessory will not be covered under warranty. Failure
resulting from the alteration or modification of the vehicle, including the cutting, welding or
disconnecting of the vehicle's original equipment parts and components will void the warranty.
Additionally, dealers will NOT be reimbursed or compensated by GM in the event of any legal
inquiry at either the local, state or federal level that
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results from the alteration or modification of a vehicle using non-GM approved parts or accessories.
Dealers should be especially cautious of accessory companies that claim the installation of their
product will not void the factory warranty. Many times these companies have even given direction
on how to quickly disassemble the accessory in an attempt to preclude the manufacturer from
finding out that is has been installed.
Any suspect repairs should be reviewed by the Fixed Operations Manager (FOM), and in Canada
by the Warranty Manager (WM) for appropriate repair direction. If it is decided that a goodwill repair
is to be made on the vehicle, even with the installation of such non-GM approved components, the
customer is to be made aware of General Motors position on this issue and is to sign the
appropriate goodwill documentation required by General Motors.
It is imperative for dealers to understand that by installing such devices, they are jeopardizing not
only the warranty coverage, but also the performance and reliability of the customer's vehicle.
Disclaimer
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Bulletins > Engine Controls - Aftermarket Accessory Usage > Page 4091
Engine Control Module: Technical Service Bulletins Engine/Transmission - Aftermarket Calibrations
INFORMATION
Bulletin No.: 09-06-04-026C
Date: August 13, 2010
Subject: Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V8 Gas
Engines Using Tech 2(R) or Global Diagnostic System (GDS)
Models:
2006-2011 GM Passenger Cars and Light Duty Trucks (Excluding Saab 9-7X) 2006-2009
HUMMER H2 2006-2010 HUMMER H3 Equipped with V8 Gas Powered Engines Only
Attention:
This bulletin applies to V8 gas powered engines ONLY. For Duramax(TM) diesel powered engines,
refer to the latest version of Corporate Bulletin Number 08-06-04-006G.
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 09-06-04-026A (Section 06 - Engine/Propulsion System).
General Motors is identifying an increasing number of engine, transmission and catalytic converter
part failures that are the result of non-GM (aftermarket) engine and transmission control
calibrations being used.
When alteration to the GM-released engine or transmission control calibrations occurs, it subjects
powertrain and driveline components (engine , transmission, transfer case, driveshaft and rear
axle) to stresses that were not tested by General Motors. It is because of these unknown stresses,
and the potential to alter reliability, durability and emissions performance, that GM has adopted a
policy that prevents any UNAUTHORIZED dealer warranty claim submissions to any remaining
warranty coverage, to the powertrain and driveline components whenever the presence of a
non-GM (aftermarket) calibration is confirmed - even if the non-GM control module calibration is
subsequently removed.
Warranty coverage is based on the equipment and calibrations that were released on the vehicle at
time of sale, or subsequently updated by GM. That's because GM testing and validation matches
the calibration to a host of criteria that is essential to assure reliability, durability and emissions
performance over the life of the warranty coverage and beyond. Stresses resulting from
calibrations different from those tested and released by GM can damage or weaken components,
leading to poor performance and or shortened life.
Additionally, non-GM (aftermarket) issued engine control modifications often do not meet the same
emissions performance standards as GM issued calibrations. Depending on state statutes,
individuals who install engine control module calibrations that put the vehicle outside the
parameters of emissions certification standards may be subject to fines and/or penalties.
This bulletin outlines a procedure to identify the presence of non-GM (aftermarket) calibrations. GM
recommends performing this check whenever a hard part failure is seen on internal engine or
transmission components, or before an engine assembly or transmission assembly is being
replaced under warranty. It is also recommended that the engine calibration verification procedure
be performed whenever diagnostics indicate that catalytic converter replacement is indicated.
The PQC has a process to confirm the ECM/PCM calibration is GM issued. The PQC will require a
picture of the engine calibration verification screen, as outlined in this bulletin, before authorizing
any V8 gas powered engine replacement.
If a non-GM calibration is found and verification has taken place through GM, the remaining
powertrain and driveline warranty will be blocked and notated in GMVIS and the dealership will be
notified. This block prevents any UNAUTHORIZED warranty claim submission.
1. Connect the Tech 2(R) to the vehicle. 2. Go to: Diagnostics and build the vehicle. 3. Select:
Powertrain. 4. Select: Engine. 5. *Select: Engine Control Module or PCM. 6. *Select: Module ID
Information or I/M Information System if the Module ID Information selection is not available. 7. *If
"I/M information System" was selected, it may be necessary to select "Vehicle Information" in order
to display the calibration information.
‹› If the CVN information is displayed as "N/A", it will be necessary to contact the TCSC to obtain
the CVN information.
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8. Take a CLEAR digital picture of the Tech 2(R) Vehicle Information screen showing the engine
Calibration IDs and Verification Numbers as
shown above. Retain the printout information and the Tech 2(R) screen photograph with the repair
order.
Note All pictures must be sent as a.jpg file.
9. E-mail a copy of the picture to
[email protected]. In the subject line of the e-mail include the
phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
10. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
11. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Tech 2(R) Displaying All Zeroes for the Verification Numbers on the Calibration ID and Verification
Number Screen
If the Tech 2(R) that you are using displays all zeroes for the Verification Numbers as shown, then
perform the following steps:
1. Update the Tech 2(R) with the latest software from TIS2WEB. 2. Turn OFF the ignition for 90
seconds. 3. Connect the Tech 2(R) to the vehicle. 4. Turn ON the ignition, and build the vehicle.
Observe the Tech 2(R) Calibration ID and Verification Number screen for proper operation.
‹› If the Tech 2(R) screen still does not display properly, then turn OFF the ignition for 90 seconds
again. Turn ON the ignition and observe the
same screen for proper operation.
Retrieving Calibrations From a Global A Vehicle
This information applies to the 2010 Camaro and is typical of the procedure that will be used on
Global A vehicles.
1. Turn OFF the ignition.
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2. Connect the MDI to the Data Link Connector (DLC) of the vehicle.
Note Use the USB port to make the following MDI connection:
3. Connect the MDI to a PC or laptop that has been downloaded with the GDS application from
TIS2WEB.
Note At least one Diagnostic Package must be installed on the PC to perform diagnostics. If GDS
was just installed, select: Add New Diagnostic Package and then select: a Diagnostic Package to
download.
4. Click: On the GDS icon on the PC. 5. The Login Page will appear. 6. Select: A User. 7. The ID
Screen will appear. 8. Select: The serial number of the MDI being used. 9. Select: Connect.
10. Verify that the system status is ready by observing for a flashing PC light icon on the MDI. 11.
Select: Make, Model and Model Year, in order to build the vehicle. 12. Click: Upload VIN, to allow
the VIN to be reported to the PC. 13. At: The Verification step, turn ON the ignition, with the engine
OFF. 14. Select: Next Action. 15. The Home Page will appear. 16. Select: Next. 17. The Diagnostic
Screen will appear.
Note Due to vehicle build, software and RPO variations, GDS may ask for additional information in
Step 18.
18. Select: Engine ID, if prompted. 19. Select: Module Diagnostics. 20. Select: ECM. 21. Select: ID
Information. 22. The Diagnostics page will appear.
Typical View of GDS Calibration History Screen
Note GDS is capable of displaying up to 10 Calibration History events.
23. Select: Calibration History from the drop down menu in order to display the following items on
the screen:
- Calibration History Buffer
- Number of Calibration History Events Stored
- Calibration Part Number History
- Calibration Verification Number History
24. Select: Screenshot. 25. Name and save the file in an appropriate folder. 26. Select : Print, and
retain a copy of the screenshot with the repair order.
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Bulletins > Engine Controls - Aftermarket Accessory Usage > Page 4094
Note All pictures must be sent as a.jpg file.
27. E-mail a copy of the screenshot to
[email protected]. In the subject line of the e-mail
include the phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
28. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
29. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Warranty Information
- The Dealership Service Management must be involved in any situation that would justify the use
of labor operation Z1111.
- Notify the Fixed Operations Manager (FOM) (Warranty Manager (WM) in Canada) of the
situation.
- All claims will have to be routed to the FOM (WM in Canada) for approval.
- Please refer to Corporate Bulletin Number 09-00-89-016, Labor Operation Z1111 - Suspected
Tampering or Vehicle Modifications for important information.
For vehicles repaired under warranty, use the table.
Disclaimer
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Engine Control Module: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Information and Instructions > Page 4098
Electrical Symbols Part 3
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Information and Instructions > Page 4099
Electrical Symbols Part 4
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Information and Instructions > Page 4100
Electrical Symbols Part 5
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Information and Instructions > Page 4101
Electrical Symbols Part 6
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Information and Instructions > Page 4102
Electrical Symbols Part 7
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Information and Instructions > Page 4103
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Engine Control Module: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Engine Control Module: Connector Views
Electronic Control Module (ECM) - C1 (Pin 1 To 24)
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Electronic Control Module (ECM) - C1 (Pin 27 To 73)
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Electronic Control Module (ECM) - C2 (Pin 2 To 29)
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Electronic Control Module (ECM) - C2 (Pin 30 To 80)
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Electronic Control Module (ECM) C1 (Pin 1 To 27)
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Electronic Control Module (ECM) C1 (Pin 28 To 73)
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Electronic Control Module (ECM) C2 (Pin 2 To 29)
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Electronic Control Module (ECM) C2 (Pin 30 To 80)
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Engine Control Module: Description and Operation
ENGINE CONTROL MODULE DESCRIPTION
The engine control module (ECM) interacts with many emission related components and systems,
and monitors the emission related components and systems for deterioration. OBD II diagnostics
monitor the system performance and a diagnostic trouble code (DTC) sets if the system
performance degrades.The malfunction indicator lamp (MIL) operation and the DTC storage are
dictated by the DTC type. A DTC is ranked as a Type A or Type B if the DTC is emissions related.
Type C is a non-emissions related DTC.The ECM is in the engine compartment. The ECM is the
control center of the engine controls system. The ECM controls the following components:
- The fuel injection system
- The ignition system
- The emission control systems
- The on-board diagnostics
- The A/C and fan systems
- The throttle actuation control (TAC) system
The ECM constantly monitors the information from various sensors and other inputs, and controls
the systems that affect the vehicle performance and the emissions. The ECM also performs
diagnostic tests on various parts of the system. The ECM can recognize operational problems and
alert the driver via the MIL. When the ECM detects a malfunction, the ECM stores a DTC. The
condition area is identified by the particular DTC that is set. This aids the technician in making
repairs.
ECM Function
The engine control module (ECM) can supply 5 volts or 12 volts to the various sensors or switches.
This is done through pull-up resistors to the regulated power supplies within the ECM. In some
cases, even an ordinary shop voltmeter will not give an accurate reading because the resistance is
too low. Therefore, a DMM with at least 10 megaohms input impedance is required in order to
ensure accurate voltage readings.The ECM controls the output circuits by controlling the ground or
the power feed circuit through the transistors or a device called an output driver module.
EEPROM
The electronically erasable programmable read only memory (EEPROM) is a permanent memory
that is physically part of the engine control module (ECM). The EEPROM contains program and
calibration information that the ECM needs in order to control the powertrain operation.Special
equipment, as well as the correct program and calibration for the vehicle, are required in order to
reprogram the ECM.
Data Link Connector (DLC)
The data link connector (DLC) is a 16-pin connector that provides the technician a means of
accessing serial data for aid in the diagnosis. This connector allows the technician to use a scan
tool in order to monitor the various serial data parameters, and display the DTC information. The
DLC is located inside of the drivers compartment, underneath the dash.
Malfunction Indicator Lamp (MIL)
The malfunction indicator lamp (MIL) is inside of the instrument panel cluster (IPC). The MIL is
controlled by the engine control module (ECM) and illuminates when the ECM detects a condition
that affects the vehicle emissions.
ECM Service Precautions
The engine control module (ECM), by design, can withstand the normal current draws that are
associated with the vehicle operations. However, care must be used in order to avoid overloading
any of these circuits. When testing for opens or shorts, do not ground or apply voltage to any of the
ECM circuits unless the diagnostic procedure instructs you to do so. These circuits should only be
tested with a DMM.
Emissions Diagnosis For State I/M Programs
This OBD II equipped vehicle is designed to diagnose any conditions that could lead to excessive
levels of the following emissions:
- Hydrocarbons (HC)
- Carbon monoxide (CO)
- Oxides of nitrogen (NOx)
- Evaporative emission (EVAP) system losses
Should this vehicles on-board diagnostic system (ECM) detect a condition that could result in
excessive emissions, the ECM turns ON the malfunction indicator lamp (MIL) and stores a DTC
that is associated with the condition.
Aftermarket (Add-On) Electrical And Vacuum Equipment
NOTE:
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- Do not attach add-on vacuum operated equipment to this vehicle. The use of add-on vacuum
equipment may result in damage to vehicle components or systems.
- Connect any add-on electrically operated equipment to the vehicle's electrical system at the
battery (power and ground) in order to prevent damage to the vehicle. Aftermarket, add-on,
electrical and vacuum equipment is defined as any equipment installed on a vehicle after leaving
the factory that connects to the vehicles electrical or vacuum systems. No allowances have been
made in the vehicle design for this type of equipment. Add-on electrical equipment, even when
installed to these strict guidelines, may still cause the powertrain system to malfunction. This may
also include equipment not connected to the vehicle electrical system, such as portable telephones
and radios. Therefore, the first step in diagnosing any powertrain condition is to eliminate all of the
aftermarket electrical equipment from the vehicle. After this is done, if the problem still exists, the
problem may be diagnosed in the normal manner.
Electrostatic Discharge (ESD) Damage
IMPORTANT: In order to prevent possible electrostatic discharge damage to the engine control
module (ECM), DO NOT touch the connector pins on the ECM. The electronic components that are
used in the control systems are often designed to carry very low voltage. The electronic
components are susceptible to damage caused by electrostatic discharge. Less than 100 volts of
static electricity can cause damage to some electronic components. There are several ways for a
person to become statically charged. The most common methods of charging are by friction and by
induction. An example of charging by friction is a person sliding across a car seat.Charging by
induction occurs when a person with well insulated shoes stands near a highly charged object and
momentarily touches ground. Charges of the same polarity are drained off leaving the person
highly charged with the opposite polarity. Static charges can cause damage, therefore, it is
important to use care when handling and testing electronic components.
Emissions Control Information Label
The underhood Vehicle Emissions Control Information Label contains important emission
specifications and setting procedures. In the upper left corner is the exhaust emission information.
This identifies the year, the manufacturing division of the engine, the displacement of the engine in
liters, the class of the vehicle, and type of fuel metering system. There is also an illustrated
emission components and vacuum hose schematic. This label is located in the engine
compartment of every General Motors vehicle. If the label has been removed, it can be ordered
from GM service parts operations (GMSPO).
Underhood Inspection
IMPORTANT: This inspection is very important and must be done carefully and thoroughly.
Perform a careful underhood inspection when performing any diagnostic procedure or diagnosing
the cause of an emission test failure. This can often lead to repairing a condition without further
steps. Use the following guidelines when performing an inspection:
- Inspect all of the vacuum hoses for correct routing, pinches, cuts, or disconnects.
- Inspect any hoses that are difficult to see.
- Inspect all of the wires in the engine compartment for the following conditions: Burned or chafed spots
- Pinched wires
- Contact with sharp edges
- Contact with hot exhaust manifolds
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Engine Control Module: Service and Repair
ENGINE CONTROL MODULE REPLACEMENT
NOTE:
- Turn the ignition OFF when installing or removing the control module connectors and
disconnecting or reconnecting the power to the control module (battery cable, powertrain control
module (PCM)/engine control module (ECM)/transaxle control module (TCM) pigtail, control
module fuse, jumper cables, etc.) in order to prevent internal control module damage.
- Control module damage may result when the metal case contacts battery voltage. DO NOT
contact the control module metal case with battery voltage when servicing a control module, using
battery booster cables, or when charging the vehicle battery.
- In order to prevent any possible electrostatic discharge damage to the control module, do no
touch the connector pins or the soldered components on the circuit board.
- Remove any debris from around the control module connector surfaces before servicing the
control module. Inspect the control module connector gaskets when diagnosing or replacing the
control module. Ensure that the gaskets are installed correctly. The gaskets prevent contaminant
intrusion into the control module.
- The replacement control module must be programmed.
IMPORTANT:
- It is necessary to record the remaining engine oil life. If the replacement module is not programed
with the remaining engine oil life, the engine oil life will default to 100 percent. If the replacement
module is not programmed with the remaining engine oil life, the engine oil will need to be changed
at 5000 km (3,000 mi) from the last engine oil change.
- It is necessary to record the remaining automatic transmission fluid life. If the replacement module
is not programed with the remaining automatic transmission fluid life, the automatic transmission
fluid life will default to 100 percent. If the replacement module is not programmed with the
remaining automatic transmission fluid life, the automatic transmission fluid will need to be changed
at 83000 km (50,000 mi) from the last automatic transmission fluid change.
Removal Procedure
1. Using a scan tool, retrieve the percentage of remaining engine oil and the remaining automatic
transmission fluid life. Record the remaining engine
oil and the remaining automatic transmission fluid life.
2. Slide the engine control module (ECM) retainer rearward, disengaging the retainer from the
battery shield. 3. Remove the ECM retainer from the top of the battery shield.
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4. Remove the ECM from the retainer. 5. Place the ECM on the battery shield.
6. Disconnect the negative battery cable. 7. Disconnect the engine wiring harness electrical
connectors (2) from the ECM.
Installation Procedure
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1. Connect the engine wiring harness electrical connectors (2) to the ECM. 2. Place the ECM on
the battery shield.
3. Install the ECM to the retainer.
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4. Position the ECM and retainer to the top of the battery shield. 5. Slide the ECM retainer
rearward, engaging the retainer to the battery shield. 6. Connect the negative battery cable. 7.
Reprogram the PCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
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Fuel Pump Relay: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Fuel Pump Relay: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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and Instructions > Page 4274
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Modules - Fuel Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information
and Instructions > Page 4305
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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and Instructions > Page 4306
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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and Instructions > Page 4307
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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and Instructions > Page 4310
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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and Instructions > Page 4312
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and Instructions > Page 4313
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Chevrolet Workshop Manuals > Powertrain Management > Relays and Modules - Powertrain Management > Relays and
Modules - Ignition System > Ignition Control Module > Component Information > Locations
Ignition Control Module: Locations
Top Of The Engine
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Rear Of The Engine
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Ignition Control Module
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Module Replacement
Ignition Control Module: Service and Repair Ignition Coil/Control Module Replacement
IGNITION COIL/CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. Disconnect the spark plug wires. Note the position from which the wires are removed. 3.
Disconnect the ignition coil/control module electrical connectors. 4. Remove the 4 bolts securing
the ignition coil/control module to the ignition control module bracket. 5. Remove the ignition
coil/control module.
INSTALLATION PROCEDURE
1. Install the ignition coil/control module to the ignition control module bracket.
2. NOTE: Refer to Fastener Notice.
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Install the 4 bolts securing the ignition coil/control module to the ignition control module bracket.
Tighten the bolts to 4.5 N.m (40 lb in).
3. Connect the ignition coil/control module electrical connectors. 4. Connect the spark plug wires. 5.
Install the injector sight shield.
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Ignition Control Module: Service and Repair Ignition Control Module Bracket Replacement
IGNITION CONTROL MODULE BRACKET REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. Disconnect the ignition coil/control module electrical connectors. 3. Remove the spark plug wire
retainer (1) from the ignition control module bracket. 4. Remove the 4 bolts securing the ignition
coil/control module to the ignition control module bracket. 5. Position the ignition coil/control module
aside out of the way. 6. Remove the bolt (3) from the fuel injector wire harness bracket (4) and
positive crankcase ventilation (PCV) valve fresh air tube retainer. 7. Remove the engine wire
harness retainers from the ignition control module bracket studs (5).
8. Remove the nut (1) retaining the heater outlet pipe. 9. Lift pipe up slightly to gain access for the
removal of the 2 ignition control module bracket bolts.
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Module Replacement > Page 4324
10. Remove the ignition control module bracket bolts (2). 11. Remove the ignition control module
bracket nuts (6). 12. Remove the ignition control module bracket.
INSTALLATION PROCEDURE
1. Install the ignition control module bracket.
2. NOTE: Refer to Fastener Notice.
Install the ignition control module bracket nuts (6).
Tighten the nuts to 25 N.m (18 lb ft).
3. Install the ignition control module bracket bolts (2).
Tighten the bolts to 25 N.m (18 lb ft).
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Module Replacement > Page 4325
4. Install the nut (1) retaining the heater outlet pipe.
Tighten the nut to 25 N.m (18 lb ft).
5. Install the engine wire harness retainers to the ignition control module bracket studs (5). 6. Install
the bolt (3) from the fuel injector wire harness bracket (4) and PCV valve fresh air tube retainer.
Tighten the bolts to 5 N.m (44 lb in).
7. Install the ignition coil/control module to the ignition control module bracket. 8. Install the 4 bolts
securing the ignition coil/control module to the ignition control module bracket.
Tighten the bolts to 4.5 N.m (40 lb in).
9. Install the spark plug wire retainer (1) to the ignition control module bracket.
10. Connect the ignition coil/control module electrical connectors. 11. Install the injector sight
shield.
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Switches - Computers and Control Systems > Accelerator Pedal Position Sensor > Component Information > Locations
Pedal Assemblies
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Page 4331
Accelerator Pedal Position Sensor: Service and Repair
ACCELERATOR PEDAL POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the instrument panel left lower closeout panel.
2. Remove the connector position assurance (CPA) from the accelerator pedal position (APP)
sensor connector. 3. Disconnect the APP sensor harness connector.
4. IMPORTANT: Due to clearance issues, the upper attachment bolt cannot be removed from the
accelerator pedal assembly. Loose then
bolt completely and leave the bolt in the component until the assembly is removed from the vehicle.
Remove the APP assembly attachment bolts.
5. Remove the APP assembly from the vehicle.
INSTALLATION PROCEDURE
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1. Install the upper attachment bolt into the APP assembly. 2. Install the APP assembly into the
vehicle.
3. NOTE: Refer to Fastener Notice.
Install the remaining attachment bolts into the APP assembly.
Tighten the bolts to 25 N.m (18 lb ft).
4. Connect the APP sensor harness connector. Push the connector in until the lock position is felt,
then pull back to confirm engagement. 5. Install the CPA to the APP sensor harness connector. 6.
Install the instrument panel left lower closeout panel.
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Air Induction Components
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Information and Instructions
Air Flow Meter/Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Information and Instructions > Page 4344
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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Information and Instructions > Page 4345
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Air Flow Meter/Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Information and Instructions > Page 4347
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Information and Instructions > Page 4348
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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Information and Instructions > Page 4400
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Information and Instructions > Page 4402
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Information and Instructions > Page 4425
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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Information and Instructions > Page 4426
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Information and Instructions > Page 4427
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Information and Instructions > Page 4428
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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Information and Instructions > Page 4429
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Information and Instructions > Page 4430
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Information and Instructions > Page 4431
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Information and Instructions > Page 4432
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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Information and Instructions > Page 4433
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Information and Instructions > Page 4434
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information and Instructions > Page 4435
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 4436
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Information and Instructions > Page 4437
Mass Air Flow (MAF) Sensor
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Air Flow Meter/Sensor: Service and Repair
MASS AIRFLOW SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Remove the screws that retain the MAF to the air cleaner assembly. 4. Remove the MAF from
the air cleaner assembly. 5. Remove the MAF to air cleaner assembly seal.
INSTALLATION PROCEDURE
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1. Install the seal to the MAF. 2. Install the MAF to the air cleaner assembly.
3. NOTE: Refer to Fastener Notice.
Install the screws that retain the MAF to the air cleaner assembly.
Tighten the screws to 4 N.m (35 lb in).
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Switches - Computers and Control Systems > Battery Current Sensor > Component Information > Diagrams
Battery Current Sensor: Diagrams
Engine Electrical Connector End Views
Battery Current Sensor
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Battery Current Sensor: Service and Repair
Battery Current Sensor Replacement
Removal Procedure
1. Remove the negative battery cable. 2. Mark the location of the battery current sensor on the
battery cable with tape for reference during installation. 3. Remove the tape securing the battery
current sensor to the negative battery cable. 4. Mark the location of the negative battery cable clips
and remove the clip from the cable. 5. Squeeze the negative battery cable branches together.
Important: Note the orientation of the battery current sensor prior to removal.
6. Slide the battery current sensor (1) off of the negative battery cable.
Installation Procedure
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1. Squeeze the negative battery cable branches together.
Important: Ensure the battery current sensor is installed in the correct direction and location on the
negative battery cable.
2. Slide the NEW battery current sensor (1) up onto the negative battery cable to the location
previously marked during removal. 3. Wrap electrical tape around the battery current sensor leg in
order to secure the sensor to the negative battery cable. 4. Install the negative battery cable clip to
the cable to the locations previously marked during removal. 5. Install the negative battery cable.
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Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Computers and Control Systems > Camshaft Position Sensor > Component Information > Locations
Top Of The Engine
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Information and Instructions
Camshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Camshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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Information and Instructions > Page 4524
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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Information and Instructions > Page 4526
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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Information and Instructions > Page 4527
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Computers and Control Systems > Camshaft Position Sensor > Component Information > Diagrams > Diagram
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Computers and Control Systems > Camshaft Position Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 4530
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 4532
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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Switches - Computers and Control Systems > Camshaft Position Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 4533
must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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Information and Instructions > Page 4535
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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Information and Instructions > Page 4536
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Information and Instructions > Page 4537
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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Information and Instructions > Page 4538
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Information and Instructions > Page 4540
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information and Instructions > Page 4547
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 4548
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4549
Camshaft Position Sensor: Service and Repair
CAMSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the camshaft position (CMP) sensor electrical connector. 2. Remove the CMP
sensor bolt. 3. Remove the CMP sensor. 4. Inspect the CMP sensor O-rings for wear, cracks, or
leakage if the sensor is being reused. Replace the O-rings if damaged.
INSTALLATION PROCEDURE
1. Lubricate the CMP sensor O-rings with clean engine oil.
2. Install the CMP sensor.
3. NOTE: Refer to Fastener Notice.
Install the CMP sensor bolt.
Tighten the bolt to 10 N.m (89 lb in).
4. Connect the CMP sensor electrical connector.
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Temperature Versus Resistance
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Information > Specifications > Page 4553
Rear Of The Engine
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Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Engine coolant must be drained below the level of the engine coolant temperature (ECT) sensor.
Refer to Draining and Filling Cooling System
(Static Fill) Draining and Filling Cooling System (GE 47716 Fill).
2. Disconnect the ECT sensor harness connector. 3. Remove the ECT sensor.
INSTALLATION PROCEDURE
1. IMPORTANT: Tap out sensor mounting hole in engine head to remove any thread sealant
residue. Clean any sealant residue from old sensor if the sensor is going to be reused.
If the sensor is being reused, apply thread sealant GM P/N 12345382 (Canadian P/N 10953489) or
equivalent, to sensor threads.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the ECT sensor.
Tighten the engine coolant temperature sensor to 23 N.m (17 lb ft).
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3. Connect the ECT sensor harness connector. Push in the connector until a click is heard, then
pull back to confirm a positive engagement. 4. Fill engine coolant to proper level. Refer to Draining
and Filling Cooling System (Static Fill) Draining and Filling Cooling System (GE 47716
Fill).
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Crankshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Crankshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Information and Instructions > Page 4571
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Information and Instructions > Page 4585
Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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Information and Instructions > Page 4612
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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Information and Instructions > Page 4613
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Information and Instructions > Page 4614
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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Information and Instructions > Page 4616
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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Information and Instructions > Page 4619
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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Information and Instructions > Page 4620
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Information and Instructions > Page 4621
2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Information and Instructions > Page 4625
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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Information and Instructions > Page 4628
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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Information and Instructions > Page 4638
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Information and Instructions > Page 4648
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Information and Instructions > Page 4650
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Information and Instructions > Page 4651
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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Information and Instructions > Page 4652
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Information and Instructions > Page 4654
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Information and Instructions > Page 4655
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 4656
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Information and Instructions > Page 4657
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information and Instructions > Page 4658
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Information and Instructions > Page 4659
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Information and Instructions > Page 4660
Crank Sensor
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4661
Crankshaft Position Sensor: Testing and Inspection
CRANKSHAFT POSITION SENSOR SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DIAGNOSTIC FAULT INFORMATION
TYPICAL SCAN TOOL DATA
CIRCUIT/SYSTEM DESCRIPTION
The crankshaft position (CKP) sensor circuits consist of an engine control module (ECM) supplied
5-volt reference circuit, low reference circuit and an output signal circuit. The CKP sensor is an
internally magnetic biased digital output integrated circuit sensing device. The sensor detects
magnetic flux changes of the teeth and slots of a 58-tooth reluctor wheel on the crankshaft. Each
tooth on the reluctor wheel is spaced at 60-tooth spacing, with 2 missing teeth for the reference
gap. The CKP sensor produces an ON/OFF DC voltage of varying frequency, with 58 output pulses
per crankshaft revolution. The frequency of the CKP sensor output depends on the velocity of the
crankshaft. The CKP sensor sends a digital signal, which represents an image of the crankshaft
reluctor wheel, to the ECM as each tooth on the wheel rotates past the CKP sensor. The ECM
uses each CKP signal pulse to determine crankshaft speed and decodes the crankshaft reluctor
wheel reference gap to identify crankshaft position. This information is then used to determine the
optimum ignition and injection points of the engine. The ECM also uses CKP sensor output
information to determine the camshaft relative position to the crankshaft, to control camshaft
phasing, and to detect cylinder misfire.
DIAGNOSTIC AIDS
- Inspect the CKP sensor connector and the ECM connector for corrosion.
- With a DTC set, the engine may crank for an extended period of time at start-up.
CIRCUIT/SYSTEM VERIFICATION
If DTC P0641 or P0651 are set diagnose those DTCs first. 1. With the ignition OFF, inspect the
engine wiring harnesses carrying the CKP sensor circuits for the following conditions:
- Close routing of secondary ignition wires
- Close routing of aftermarket electrical equipment
- Close to solenoids, motors, and relays
- Correct any wire harness routing or component placement conditions, if it is determined to be a
possible source of electrical interference.
2. Start the engine. Using the Live Plot function on the scan tool, select the CMP parameter.
Change the minimum spec to 400 RPM, and the
maximum spec to 4,000 RPM. Select the CKP sensor parameter. Change the minimum spec to
600 RPM, and the maximum spec to 3,300 RPM.
3. Observe the scan tool. 4. Quickly accelerate and release the accelerator pedal several time. Do
not exceed 3,200 RPM. The graphed lines on the Live Plot display should
track together across the screen. If the vehicle passes the Circuit/System Verification test, operate the vehicle within the Conditions
for Running the DTC. You may also operate the vehicle within the conditions that are captured in
the Freeze Frame/Failure Records data list.
CIRCUIT/SYSTEM TESTING
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4662
IMPORTANT: You must complete the Circuit/System Verification before proceeding with
Circuit/System Testing.
1. Disconnect the CKP sensor connector. 2. Test for less than 1 ohm of resistance between low
reference circuit and ground.
- If greater than the specified value, test the low reference circuit for an open/high resistance. If the
circuit tests normal, replace the ECM.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit and ground.
- If less than the specified range, test the 5-volt reference circuit for an open/high resistance or
short to ground. If the circuit tests normal, replace the ECM.
- If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the
circuit tests normal, replace the ECM.
4. Ignition ON, test for 4.8-5.2 volts between the signal circuit and ground.
- If less than the specified range, test signal circuit for an open/high resistance or short to ground. If
the circuit tests normal, replace the ECM.
- If greater than the specified range, test signal circuit for a short to voltage. If the circuit tests
normal, replace the ECM.
5. Ignition ON, using a jumper wire connected to ground, momentarily touch the CKP sensor signal
circuit repeatedly. The CKP Active Counter
parameter should increment. If the CKP Active Counter parameter does not increment, replace the ECM.
6. Ignition OFF, inspect the CKP sensor for looseness and correct installation 7. Touch the jumper
wire to the CKP sensor signal circuit repeatedly at the connector. The CKP Active Counter
parameter should increment.
- If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.
8. Inspect the engine for the following conditions:
- Engine oil for debris
- Crankshaft reluctor wheel for damage
- The timing chain, tensioner, and sprockets for wear or damage
- If debris is found in the engine oil, inspect the internal engine components to determine the cause.
Repair or replace any worn or damaged components.
COMPONENT TESTING
IMPORTANT: You must complete the Circuit/System Testing before proceeding with Component
Testing.
1. Remove the CKP sensor from the engine and inspect the sensor and the O-ring for damage. 2.
Connect the CKP Sensor connector to the CKP Sensor; turn ON the ignition, with the engine OFF.
3. Observe the CKP Active Counter parameter on the scan tool; pass a steel object by the tip of the
sensor repeatedly. The CKP Active Counter
parameter should increment. If the parameter does not increment, replace the CKP sensor.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Crankshaft Position Sensor Replacement for CKP sensor replacement
- Control Module References for ECM replacement, setup, and programming See: Computers and
Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests and Procedures See: Testing and Inspection/Programming and
Relearning
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Crankshaft Position Sensor Replacement
Crankshaft Position Sensor: Service and Repair Crankshaft Position Sensor Replacement
CRANKSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting. 2. Disconnect the crankshaft position (CKP) sensor
electrical connector. 3. Remove the CKP sensor nut (2). 4. Remove the CKP sensor (1) from the
engine. 5. Inspect for wear, cracks, or leakage if the CKP sensor is being reused.
INSTALLATION PROCEDURE
1. Lubricate the O-ring with clean engine oil. Replace the O-rings if damaged.
2. Install the CKP sensor (1) to the block.
3. NOTE: Refer to Fastener Notice.
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Install the CKP sensor nut (1).
Tighten the nut to 11 N.m (97 lb in).
4. Connect the CKP sensor electrical connector. 5. Lower the vehicle.
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Crankshaft Position Sensor: Service and Repair Crankshaft Position System Variation Learn
CRANKSHAFT POSITION SYSTEM VARIATION LEARN
IMPORTANT: The Crankshaft Position (CKP) system variation learn procedure is also required when the
following service procedures have been performed, regardless of whether DTC P0315 is set: An engine replacement
- A engine control module (ECM) replacement
- A crankshaft balancer replacement
- A crankshaft replacement
- A CKP sensor replacement
- Any engine repairs which disturb the crankshaft to CKP sensor relationship.
- The scan tool monitors certain component signals to determine if all the conditions are met to
continue with the CKP System Variation Learn Procedure. The scan tool only displays the condition
that inhibits the procedure. The scan tool monitors the following components: CKP sensors activity-If there is a CKP sensor condition, refer to the applicable DTC that set.
- Camshaft position (CMP) signal activity-If there is a CMP signal condition, refer to the applicable
DTC that set.
- Engine coolant temperature (ECT)-If the engine coolant temperature is not warm enough, idle the
engine until the engine coolant temperature reaches the correct temperature.
1. Install a scan tool. 2. Monitor the ECM for DTCs with a scan tool. If other DTCs are set, except
DTC P0315, refer to Diagnostic Trouble Code (DTC) List - Vehicle
for the applicable DTC that set. See: Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Descriptions
3. With a scan tool, select the CKP System Variation Learn Procedure and perform the following:
1. Observe fuel cut-off for applicable engine. 2. Block drive wheels. 3. Set parking brake. 4. DO
NOT apply brake pedal. 5. Cycle ignition from OFF to ON. 6. Apply and hold brake pedal for the
duration of the procedure. 7. Start and idle engine. 8. Turn the air conditioning (A/C) OFF. 9. The
vehicle must remain in Park or Neutral.
10. IMPORTANT:
- The engine should not accelerate beyond the calibrated fuel cut-off RPM value noted in step 3.1.
Release the throttle immediately if the value is exceeded.
- While the learn procedure is in progress, release the throttle immediately when the engine starts
to decelerate. The engine control is returned to the operator and the engine responds to throttle
position after the learn procedure is complete.
Accelerate to wide open throttle (WOT) and release when the fuel cut-off occurs.
4. The scan tool displays Learn Status: Learned this Ignition. If the scan tool indicates that DTC
P0315 ran and passed, the CKP variation learn
procedure is complete. If the scan tool indicates DTC P0315 failed or did not run, refer to DTC
P0315. If any other DTCs set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the
applicable DTC. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble
Code Descriptions
5. Turn OFF the ignition for 30 seconds after the learn procedure is completed successfully in order
to store the CKP system variation values in the
ECM memory.
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Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Computers and Control Systems > Fuel Level Sensor > Component Information > Locations
Fuel Tank Components
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Level Sensor Replacement - Primary
Fuel Level Sensor: Service and Repair Fuel Level Sensor Replacement - Primary
FUEL LEVEL SENSOR REPLACEMENT - PRIMARY
REMOVAL PROCEDURE
1. IMPORTANT: NEW fuel tank module seals are necessary each time the fuel tank module is
serviced. Obtain NEW seals for both the
primary and secondary modules prior to beginning this service procedure.
IMPORTANT: There are 2 fuel level sender unit and float assemblies in the fuel tank. There is 1
located on each fuel pump module. The fuel level sender unit and float is NOT the same for each of
the fuel pump modules.
Remove the fuel tank.
2. Remove the fuel pump module. 3. Disconnect the fuel level sender unit and float electrical
connector from the underside of the top of the pump module. 4. Release the retaining tabs (1, 2)
and remove the level sensor by sliding up.
INSTALLATION PROCEDURE
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Level Sensor Replacement - Primary > Page 4672
1. Install the fuel level sender unit and float onto the fuel pump module. Make sure that the sender
cap snaps into place (1, 2). 2. Connect the fuel level sender unit and float electrical connector. 3.
Install the fuel pump module into the fuel tank. 4. Install the fuel tank.
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Level Sensor Replacement - Primary > Page 4673
Fuel Level Sensor: Service and Repair Fuel Level Sensor Replacement - Secondary
FUEL LEVEL SENSOR REPLACEMENT - SECONDARY
REMOVAL PROCEDURE
1. IMPORTANT: A NEW fuel tank module seal is necessary each time the fuel tank module is
serviced. Obtain a NEW seal prior to
beginning this service procedure.
IMPORTANT: There are 2 fuel level sender unit and float assemblies in the fuel tank. There is 1
located on each fuel pump module. The fuel level sender unit and float is NOT the same for each of
the fuel pump modules.
Remove the fuel tank. 2. Remove the fuel pump module. 3. Disconnect the fuel level sender unit
and the float electrical connector. 4. Release the retaining tabs and remove the level sensor by
sliding up.
INSTALLATION PROCEDURE
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1. Install the fuel level sender unit and float onto the fuel pump module. Make sure that the sender
cap snaps into place. 2. Connect the fuel level sender unit and the float electrical connector. 3.
Install the fuel pump module into the fuel tank. 4. Install the fuel tank.
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Fuel Tank Pressure Sensor: Service and Repair
FUEL TANK PRESSURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the fuel tank
2. Disconnect the fuel pump module harness electrical connector from the fuel tank pressure
sensor.
3. Position 2 flat-bladed screwdrivers, one on each side of the sensor, near the vacuum port. 4.
Carefully use the screwdrivers to lift and release the sensor from the fuel pump module.
INSTALLATION PROCEDURE
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1. Install the fuel tank pressure sensor to the fuel pump module assembly. Ensure that the sensor
grommet is fully seated to the pump module.
2. Connect the pump module electrical connector to the fuel tank pressure sensor. 3. Install the fuel
tank.
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Air Induction Components
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Knock Sensor: Locations
Front Of Engine
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Front Of The Engine
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Rear Of The Engine
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Knock Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Knock Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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and Instructions > Page 4698
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and Instructions > Page 4699
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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and Instructions > Page 4738
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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and Instructions > Page 4741
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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and Instructions > Page 4742
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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and Instructions > Page 4744
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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and Instructions > Page 4752
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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and Instructions > Page 4761
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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and Instructions > Page 4762
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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and Instructions > Page 4763
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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and Instructions > Page 4768
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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and Instructions > Page 4783
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Knock Sensor: Connector Views
Knock Sensor 1
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Knock Sensor 2
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Sensor Replacement - Bank 1
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 1
KNOCK SENSOR REPLACEMENT - BANK 1
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. If equipped with front wheel drive
(FWD), disconnect the engine wiring harness electrical connector (1) from the knock sensor.
3. If equipped with all wheel drive (AWD), disconnect the engine wiring harness electrical connector
(1) from the knock sensor.
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4. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
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2. If equipped with AWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor.
3. If equipped with FWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor. 4. Lower the vehicle.
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Sensor Replacement - Bank 1 > Page 4794
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 2
KNOCK SENSOR REPLACEMENT - BANK 2
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Disconnect the engine wiring harness
electrical connector (2) from the knock sensor.
3. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
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1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
2. Connect the engine wiring harness electrical connector (2) to the knock sensor. 3. Lower the
vehicle.
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Rear Of The Engine
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Manifold Pressure/Vacuum Sensor: Service and Repair
MANIFOLD ABSOLUTE PRESSURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the manifold absolute pressure (MAP) sensor electrical connector.
2. Remove the MAP sensor retaining bolt (3) and bracket (2). 3. Remove the MAP sensor (1) and
the MAP sensor port seal if it is still retained in the intake manifold.
INSTALLATION PROCEDURE
1. Install the MAP sensor (1) to the intake manifold.
2. NOTE: Refer to Fastener Notice.
Install the MAP sensor retaining bracket (2) and bolt (3).
Tighten the bolt to 10 N.m (89 lb in).
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3. Connect the MAP sensor electrical connector.
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Oil Pressure Sensor: Service and Repair
Engine Oil Pressure Sensor and/or Switch Replacement
Removal Procedure
1. Raise and support the vehicle.
2. Disconnect the oil pressure indicator switch electrical connector (2).
3. Remove the oil pressure indicator switch from the engine block.
Installation Procedure
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1. Apply sealer to the oil pressure indicator switch threads.
Notice: Refer to Component Fastener Tightening Notice.
2. Install the oil pressure indicator switch.
Tighten the switch to 16 N.m (12 lb ft).
3. Connect the oil pressure indicator switch electrical connector (2). 4. Lower the vehicle.
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Oxygen Sensors
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Oxygen Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Oxygen Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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and Instructions > Page 4841
9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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and Instructions > Page 4859
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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and Instructions > Page 4862
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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and Instructions > Page 4869
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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and Instructions > Page 4896
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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and Instructions > Page 4898
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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and Instructions > Page 4899
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Diagrams > Diagram Information
and Instructions > Page 4900
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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and Instructions > Page 4902
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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and Instructions > Page 4903
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Diagrams > Diagram Information
and Instructions > Page 4904
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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and Instructions > Page 4905
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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and Instructions > Page 4906
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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and Instructions > Page 4907
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and Instructions > Page 4908
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and Instructions > Page 4909
Oxygen Sensor: Connector Views
Heated Oxygen Sensor Bank 1 Sensor 1
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and Instructions > Page 4910
Heated Oxygen Sensor Bank 1 Sensor 2
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Oxygen and Oxygen Sensor Notice
Oxygen Sensor: Service Precautions Heated Oxygen and Oxygen Sensor Notice
Heated Oxygen and Oxygen Sensor Notice
Notice: Do not remove the pigtail from either the heated oxygen sensor (HO2S) or the oxygen
sensor (O2S). Removing the pigtail or the connector will affect sensor operation.
Handle the oxygen sensor carefully. Do not drop the HO2S. Keep the in-line electrical connector
and the louvered end free of grease, dirt, or other contaminants. Do not use cleaning solvents of
any type.
Do not repair the wiring, connector or terminals. Replace the oxygen sensor if the pigtail wiring,
connector, or terminal is damaged.
This external clean air reference is obtained by way of the oxygen sensor signal and heater wires.
Any attempt to repair the wires, connectors, or terminals could result in the obstruction of the air
reference and degraded sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor:
* Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors.
These materials may get into the sensor causing poor performance.
* Do not damage the sensor pigtail and harness wires in such a way that the wires inside are
exposed. This could provide a path for foreign materials to enter the sensor and cause
performance problems.
* Ensure the sensor or vehicle lead wires are not bent sharply or kinked. Sharp bends or kinks
could block the reference air path through the lead wire.
* Do not remove or defeat the oxygen sensor ground wire, where applicable. Vehicles that utilize
the ground wired sensor may rely on this ground as the only ground contact to the sensor.
Removal of the ground wire will cause poor engine performance.
* Ensure that the peripheral seal remains intact on the vehicle harness connector in order to
prevent damage due to water intrusion. The engine harness may be repaired using Packard's
Crimp and Splice Seals Terminal Repair Kit. Under no circumstances should repairs be soldered
since this could result in the air reference being obstructed.
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Oxygen and Oxygen Sensor Notice > Page 4913
Oxygen Sensor: Service Precautions Silicon Contamination of Heated Oxygen Sensors Notice
Silicon Contamination of Heated Oxygen Sensors Notice
Notice: Contamination of the oxygen sensor can result from the use of an inappropriate RTV
sealant (not oxygen sensor safe) or excessive engine coolant or oil consumption. Remove the
HO2S and visually inspect the portion of the sensor exposed to the exhaust stream in order to
check for contamination. If contaminated, the portion of the sensor exposed to the exhaust stream
will have a white powdery coating. Silicon contamination causes a high but false HO2S signal
voltage (rich exhaust indication). The control module will then reduce the amount of fuel delivered
to the engine, causing a severe driveability problem. Eliminate the source of contamination before
replacing the oxygen sensor.
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Oxygen and Oxygen Sensor Notice > Page 4914
Oxygen Sensor: Service Precautions Heated Oxygen Sensor Resistance Learn Reset Notice
Heated Oxygen Sensor Resistance Learn Reset Notice
Notice: When replacing the HO2S perform the following:
* A code clear with a scan tool, regardless of whether or not a DTC is set
* HO2S heater resistance learn reset with a scan tool, where available
Perform the above in order to reset the HO2S resistance learned value and avoid possible HO2S
failure.
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Oxygen Sensor 1 Replacement
Oxygen Sensor: Service and Repair Heated Oxygen Sensor 1 Replacement
HEATED OXYGEN SENSOR 1 REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the HO2S 1 harness connector. 2. Remove the HO2S 1 from the exhaust manifold.
INSTALLATION PROCEDURE
1. NOTE: Silicone based products will contaminate the HO2S. Use only a nickel based anti-seize
compound that does not contain silicone.
Apply a small amount of anti-seize compound to the threads of the HO2S 2.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the HO2S 1 to the exhaust manifold.
Tighten the HO2S 1 to 42 N.m (31 lb ft).
3. Connect the HO2S 1 harness connector. Push in the connector until a click is heard and pull
back to confirm a positive engagement.
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Oxygen Sensor 1 Replacement > Page 4917
Oxygen Sensor: Service and Repair Heated Oxygen Sensor 2 Replacement
HEATED OXYGEN SENSOR 2 REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Disconnect the HO2S 2 harness connector (3).
3. IMPORTANT: Silicone based products will contaminate the HO2S. DO NOT use products
containing silicone on or near the HO2S.
Use a liquid penetrate before removing the sensor.
4. Remove the HO2S 2 (2) from the exhaust pipe.
INSTALLATION PROCEDURE
1. NOTE: Silicone based products will contaminate the HO2S. Use only a nickel based anti-seize
compound that does not contain silicone.
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Oxygen Sensor 1 Replacement > Page 4918
Apply a small amount of anti-seize compound to the threads of the HO2S 2.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the HO2S 2 (2).
Tighten the HO2S 2 to 42 N.m (31 lb ft).
3. Connect the HO2S 2 harness connector (3). Push in the connector until a click is heard, then pull
back to confirm a positive engagement. 4. Ensure the HO2S 2 harness pigtail connector is secure
to the chassis.
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Information and Instructions
Throttle Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Information and Instructions > Page 4926
Electrical Symbols Part 5
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Information and Instructions > Page 4927
Electrical Symbols Part 6
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Electrical Symbols Part 7
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Information and Instructions > Page 4929
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Throttle Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Information and Instructions > Page 4932
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Information and Instructions > Page 4933
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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Information and Instructions > Page 4964
8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Information and Instructions > Page 4969
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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Information and Instructions > Page 4972
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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Information and Instructions > Page 4973
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 4974
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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Information and Instructions > Page 4975
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Information and Instructions > Page 4976
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Information and Instructions > Page 4977
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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Information and Instructions > Page 4978
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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Information and Instructions > Page 4981
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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Information and Instructions > Page 4982
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Information and Instructions > Page 4983
2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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Information and Instructions > Page 4986
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Information and Instructions > Page 4987
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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Information and Instructions > Page 4988
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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Information and Instructions > Page 5011
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Information and Instructions > Page 5015
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Information and Instructions > Page 5016
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Information and Instructions > Page 5017
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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Information and Instructions > Page 5018
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Information and Instructions > Page 5019
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information and Instructions > Page 5020
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5021
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Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Computers and Control Systems > Transmission Position Switch/Sensor, A/T > Component Information >
Locations
Transmission Position Switch/Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
75 - Park/Neutral Position Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Locations > Page 5025
Transmission Position Switch/Sensor: Adjustments
Transaxle Range Switch Adjustment
Tools Required
* J 36346 Fascia Retainer Remover
* J 45404 Transmission Indicator Alignment Tool
1. Remove the battery tray. 2. Shift the transaxle into neutral (N) position.
3. Using the J 36346, remove the shift control cable from the transaxle range switch lever.
4. Loosen the transaxle range switch bolt (2) and stud (1).
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Locations > Page 5026
5. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
on the J 45404.
Notice: Refer to Fastener Notice.
6. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
7. Remove the J 45404 from the manual shaft. 8. Install the shift control cable to the transaxle
range switch lever. 9. Install the battery tray.
10. After adjusting the transaxle range switch, verify the engine only starts in park (P) or neutral
(N). If the engine starts in any other position, readjust
the switch.
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Service and Repair > Transaxle Range Switch Lever Replacement
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Lever
Replacement
Transaxle Range Switch Lever Replacement
Tools Required
J 36346 Fascia Retainer Remover
Removal Procedure
1. Remove the battery tray.
2. Using the J 36346, disconnect the shift control cable from the transaxle range switch lever.
3. Remove the transaxle range switch lever nut and lever.
Installation Procedure
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Service and Repair > Transaxle Range Switch Lever Replacement > Page 5029
Notice: Refer to Fastener Notice.
1. Install the transaxle range switch lever and lever nut.
Tighten the nut to 16 N.m (12 lb ft).
2. Install the shift control cable end fitting onto the ball stud of the transaxle range switch lever. An
audible snap will be heard when properly
installed.
3. Install the battery tray.
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Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Replacement
Transaxle Range Switch Replacement
Tools Required
J 45404 Transmission Indicator Alignment Tool
Removal Procedure
1. Remove the battery tray.
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
switch.
2. Apply the parking brake and place control shift lever in neutral (N). 3. Remove the transaxle
range switch lever.
4. Disconnect the electrical connectors (3, 5) from the transaxle range switch.
5. Using a screwdriver, bend the lockwasher tabs down away from the manual shaft nut.
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Service and Repair > Transaxle Range Switch Lever Replacement > Page 5031
6. Remove the nut, lock tab washer, and flat washer.
7. Remove the transaxle range switch bolt (2), stud (1), and flat washers. 8. Remove the transaxle
range switch (3).
Installation Procedure
1. Install the transaxle range switch (3) to the manual shaft lever. 2. Install the washer stud (1) and
the bolt (2). Hand tighten ONLY at this time.
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Notice: Refer to Fastener Notice.
3. Install the flat washer, lock tab washer, and nut.
Tighten the nut to 7 N.m (62 lb in).
4. Ensure the manual shaft is in neutral (N) position.
5. Bend the lock washer tabs up to secure the nut.
6. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
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on the J 45404.
7. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
8. Remove the J 45404 from the manual shaft.
9. Connect the electrical connectors (3, 5) to the transaxle range switch.
10. Install the transaxle range switch lever. 11. Install the battery tray. 12. After installing and
adjusting the switch, verify the engine only starts in park (P) or neutral (N). If the engine starts in
any other position, readjust
the switch. Refer to Transaxle Range Switch Adjustment.
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Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Fuel Delivery and Air Induction > Accelerator Pedal Position Sensor > Component Information > Locations
Pedal Assemblies
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Switches - Fuel Delivery and Air Induction > Accelerator Pedal Position Sensor > Component Information > Locations >
Page 5038
Accelerator Pedal Position Sensor: Service and Repair
ACCELERATOR PEDAL POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the instrument panel left lower closeout panel.
2. Remove the connector position assurance (CPA) from the accelerator pedal position (APP)
sensor connector. 3. Disconnect the APP sensor harness connector.
4. IMPORTANT: Due to clearance issues, the upper attachment bolt cannot be removed from the
accelerator pedal assembly. Loose then
bolt completely and leave the bolt in the component until the assembly is removed from the vehicle.
Remove the APP assembly attachment bolts.
5. Remove the APP assembly from the vehicle.
INSTALLATION PROCEDURE
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Page 5039
1. Install the upper attachment bolt into the APP assembly. 2. Install the APP assembly into the
vehicle.
3. NOTE: Refer to Fastener Notice.
Install the remaining attachment bolts into the APP assembly.
Tighten the bolts to 25 N.m (18 lb ft).
4. Connect the APP sensor harness connector. Push the connector in until the lock position is felt,
then pull back to confirm engagement. 5. Install the CPA to the APP sensor harness connector. 6.
Install the instrument panel left lower closeout panel.
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Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Fuel Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Locations
Air Induction Components
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Information and Instructions
Air Flow Meter/Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Air Flow Meter/Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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Information and Instructions > Page 5088
1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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Information and Instructions > Page 5089
3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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Information and Instructions > Page 5090
4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Information and Instructions > Page 5091
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Information and Instructions > Page 5092
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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Information and Instructions > Page 5093
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5094
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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Information and Instructions > Page 5095
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5096
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5097
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Information and Instructions > Page 5098
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Information and Instructions > Page 5099
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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Information and Instructions > Page 5100
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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Information and Instructions > Page 5101
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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Information and Instructions > Page 5102
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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Information and Instructions > Page 5104
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Information and Instructions > Page 5109
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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Information and Instructions > Page 5112
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Information and Instructions > Page 5135
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information and Instructions > Page 5142
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Information and Instructions > Page 5143
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Information and Instructions > Page 5144
Mass Air Flow (MAF) Sensor
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Air Flow Meter/Sensor: Service and Repair
MASS AIRFLOW SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Remove the screws that retain the MAF to the air cleaner assembly. 4. Remove the MAF from
the air cleaner assembly. 5. Remove the MAF to air cleaner assembly seal.
INSTALLATION PROCEDURE
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1. Install the seal to the MAF. 2. Install the MAF to the air cleaner assembly.
3. NOTE: Refer to Fastener Notice.
Install the screws that retain the MAF to the air cleaner assembly.
Tighten the screws to 4 N.m (35 lb in).
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Information and Instructions
Throttle Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Throttle Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Information and Instructions > Page 5161
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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Information and Instructions > Page 5203
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Information and Instructions > Page 5204
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Information and Instructions > Page 5205
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5206
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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Information and Instructions > Page 5207
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5208
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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Information and Instructions > Page 5210
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Information and Instructions > Page 5211
2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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Information and Instructions > Page 5214
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Information and Instructions > Page 5215
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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Information and Instructions > Page 5221
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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Information and Instructions > Page 5223
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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Information and Instructions > Page 5225
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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Information and Instructions > Page 5228
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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Information and Instructions > Page 5230
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5231
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5235
If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5236
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Fuel Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 5237
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Fuel Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 5238
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5239
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Information and Instructions > Page 5240
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Fuel Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram
Information and Instructions > Page 5241
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5242
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5243
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5244
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Information and Instructions > Page 5245
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 5246
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information and Instructions > Page 5248
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Top Of The Engine
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Camshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Camshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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Instructions > Page 5297
8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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Instructions > Page 5312
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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Instructions > Page 5338
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Instructions > Page 5353
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Instructions > Page 5354
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Camshaft Position Sensor: Service and Repair
CAMSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the camshaft position (CMP) sensor electrical connector. 2. Remove the CMP
sensor bolt. 3. Remove the CMP sensor. 4. Inspect the CMP sensor O-rings for wear, cracks, or
leakage if the sensor is being reused. Replace the O-rings if damaged.
INSTALLATION PROCEDURE
1. Lubricate the CMP sensor O-rings with clean engine oil.
2. Install the CMP sensor.
3. NOTE: Refer to Fastener Notice.
Install the CMP sensor bolt.
Tighten the bolt to 10 N.m (89 lb in).
4. Connect the CMP sensor electrical connector.
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Rear Of The Engine
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Instructions
Crankshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Crankshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Instructions > Page 5371
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Instructions > Page 5385
Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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Instructions > Page 5386
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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Instructions > Page 5387
5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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Instructions > Page 5388
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Instructions > Page 5389
4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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Instructions > Page 5391
BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5444
must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5445
If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5446
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5447
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5448
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5449
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5450
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5451
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5452
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5453
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5454
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5455
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5456
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Instructions > Page 5457
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Instructions > Page 5458
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5459
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Switches - Ignition System > Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 5460
Crank Sensor
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Crankshaft Position Sensor: Testing and Inspection
CRANKSHAFT POSITION SENSOR SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DIAGNOSTIC FAULT INFORMATION
TYPICAL SCAN TOOL DATA
CIRCUIT/SYSTEM DESCRIPTION
The crankshaft position (CKP) sensor circuits consist of an engine control module (ECM) supplied
5-volt reference circuit, low reference circuit and an output signal circuit. The CKP sensor is an
internally magnetic biased digital output integrated circuit sensing device. The sensor detects
magnetic flux changes of the teeth and slots of a 58-tooth reluctor wheel on the crankshaft. Each
tooth on the reluctor wheel is spaced at 60-tooth spacing, with 2 missing teeth for the reference
gap. The CKP sensor produces an ON/OFF DC voltage of varying frequency, with 58 output pulses
per crankshaft revolution. The frequency of the CKP sensor output depends on the velocity of the
crankshaft. The CKP sensor sends a digital signal, which represents an image of the crankshaft
reluctor wheel, to the ECM as each tooth on the wheel rotates past the CKP sensor. The ECM
uses each CKP signal pulse to determine crankshaft speed and decodes the crankshaft reluctor
wheel reference gap to identify crankshaft position. This information is then used to determine the
optimum ignition and injection points of the engine. The ECM also uses CKP sensor output
information to determine the camshaft relative position to the crankshaft, to control camshaft
phasing, and to detect cylinder misfire.
DIAGNOSTIC AIDS
- Inspect the CKP sensor connector and the ECM connector for corrosion.
- With a DTC set, the engine may crank for an extended period of time at start-up.
CIRCUIT/SYSTEM VERIFICATION
If DTC P0641 or P0651 are set diagnose those DTCs first. 1. With the ignition OFF, inspect the
engine wiring harnesses carrying the CKP sensor circuits for the following conditions:
- Close routing of secondary ignition wires
- Close routing of aftermarket electrical equipment
- Close to solenoids, motors, and relays
- Correct any wire harness routing or component placement conditions, if it is determined to be a
possible source of electrical interference.
2. Start the engine. Using the Live Plot function on the scan tool, select the CMP parameter.
Change the minimum spec to 400 RPM, and the
maximum spec to 4,000 RPM. Select the CKP sensor parameter. Change the minimum spec to
600 RPM, and the maximum spec to 3,300 RPM.
3. Observe the scan tool. 4. Quickly accelerate and release the accelerator pedal several time. Do
not exceed 3,200 RPM. The graphed lines on the Live Plot display should
track together across the screen. If the vehicle passes the Circuit/System Verification test, operate the vehicle within the Conditions
for Running the DTC. You may also operate the vehicle within the conditions that are captured in
the Freeze Frame/Failure Records data list.
CIRCUIT/SYSTEM TESTING
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IMPORTANT: You must complete the Circuit/System Verification before proceeding with
Circuit/System Testing.
1. Disconnect the CKP sensor connector. 2. Test for less than 1 ohm of resistance between low
reference circuit and ground.
- If greater than the specified value, test the low reference circuit for an open/high resistance. If the
circuit tests normal, replace the ECM.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit and ground.
- If less than the specified range, test the 5-volt reference circuit for an open/high resistance or
short to ground. If the circuit tests normal, replace the ECM.
- If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the
circuit tests normal, replace the ECM.
4. Ignition ON, test for 4.8-5.2 volts between the signal circuit and ground.
- If less than the specified range, test signal circuit for an open/high resistance or short to ground. If
the circuit tests normal, replace the ECM.
- If greater than the specified range, test signal circuit for a short to voltage. If the circuit tests
normal, replace the ECM.
5. Ignition ON, using a jumper wire connected to ground, momentarily touch the CKP sensor signal
circuit repeatedly. The CKP Active Counter
parameter should increment. If the CKP Active Counter parameter does not increment, replace the ECM.
6. Ignition OFF, inspect the CKP sensor for looseness and correct installation 7. Touch the jumper
wire to the CKP sensor signal circuit repeatedly at the connector. The CKP Active Counter
parameter should increment.
- If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.
8. Inspect the engine for the following conditions:
- Engine oil for debris
- Crankshaft reluctor wheel for damage
- The timing chain, tensioner, and sprockets for wear or damage
- If debris is found in the engine oil, inspect the internal engine components to determine the cause.
Repair or replace any worn or damaged components.
COMPONENT TESTING
IMPORTANT: You must complete the Circuit/System Testing before proceeding with Component
Testing.
1. Remove the CKP sensor from the engine and inspect the sensor and the O-ring for damage. 2.
Connect the CKP Sensor connector to the CKP Sensor; turn ON the ignition, with the engine OFF.
3. Observe the CKP Active Counter parameter on the scan tool; pass a steel object by the tip of the
sensor repeatedly. The CKP Active Counter
parameter should increment. -
If the parameter does not increment, replace the CKP sensor.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Crankshaft Position Sensor Replacement for CKP sensor replacement
- Control Module References for ECM replacement, setup, and programming See: Computers and
Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests and Procedures See: Testing and Inspection/Programming and
Relearning
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Position Sensor Replacement
Crankshaft Position Sensor: Service and Repair Crankshaft Position Sensor Replacement
CRANKSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting. 2. Disconnect the crankshaft position (CKP) sensor
electrical connector. 3. Remove the CKP sensor nut (2). 4. Remove the CKP sensor (1) from the
engine. 5. Inspect for wear, cracks, or leakage if the CKP sensor is being reused.
INSTALLATION PROCEDURE
1. Lubricate the O-ring with clean engine oil. Replace the O-rings if damaged.
2. Install the CKP sensor (1) to the block.
3. NOTE: Refer to Fastener Notice.
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Position Sensor Replacement > Page 5465
Install the CKP sensor nut (1).
Tighten the nut to 11 N.m (97 lb in).
4. Connect the CKP sensor electrical connector. 5. Lower the vehicle.
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Position Sensor Replacement > Page 5466
Crankshaft Position Sensor: Service and Repair Crankshaft Position System Variation Learn
CRANKSHAFT POSITION SYSTEM VARIATION LEARN
IMPORTANT: The Crankshaft Position (CKP) system variation learn procedure is also required when the
following service procedures have been performed, regardless of whether DTC P0315 is set: An engine replacement
- A engine control module (ECM) replacement
- A crankshaft balancer replacement
- A crankshaft replacement
- A CKP sensor replacement
- Any engine repairs which disturb the crankshaft to CKP sensor relationship.
- The scan tool monitors certain component signals to determine if all the conditions are met to
continue with the CKP System Variation Learn Procedure. The scan tool only displays the condition
that inhibits the procedure. The scan tool monitors the following components: CKP sensors activity-If there is a CKP sensor condition, refer to the applicable DTC that set.
- Camshaft position (CMP) signal activity-If there is a CMP signal condition, refer to the applicable
DTC that set.
- Engine coolant temperature (ECT)-If the engine coolant temperature is not warm enough, idle the
engine until the engine coolant temperature reaches the correct temperature.
1. Install a scan tool. 2. Monitor the ECM for DTCs with a scan tool. If other DTCs are set, except
DTC P0315, refer to Diagnostic Trouble Code (DTC) List - Vehicle
for the applicable DTC that set. See: Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Descriptions
3. With a scan tool, select the CKP System Variation Learn Procedure and perform the following:
1. Observe fuel cut-off for applicable engine. 2. Block drive wheels. 3. Set parking brake. 4. DO
NOT apply brake pedal. 5. Cycle ignition from OFF to ON. 6. Apply and hold brake pedal for the
duration of the procedure. 7. Start and idle engine. 8. Turn the air conditioning (A/C) OFF. 9. The
vehicle must remain in Park or Neutral.
10. IMPORTANT:
- The engine should not accelerate beyond the calibrated fuel cut-off RPM value noted in step 3.1.
Release the throttle immediately if the value is exceeded.
- While the learn procedure is in progress, release the throttle immediately when the engine starts
to decelerate. The engine control is returned to the operator and the engine responds to throttle
position after the learn procedure is complete.
Accelerate to wide open throttle (WOT) and release when the fuel cut-off occurs.
4. The scan tool displays Learn Status: Learned this Ignition. If the scan tool indicates that DTC
P0315 ran and passed, the CKP variation learn
procedure is complete. If the scan tool indicates DTC P0315 failed or did not run, refer to DTC
P0315. If any other DTCs set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the
applicable DTC. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble
Code Descriptions
5. Turn OFF the ignition for 30 seconds after the learn procedure is completed successfully in order
to store the CKP system variation values in the
ECM memory.
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Bulletins > Customer Interest: > 09-02-35-005C > Feb > 11 > Ignition - Key Difficult To Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: Customer Interest Ignition - Key Difficult To Remove, Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
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Bulletins > All Technical Service Bulletins: > 09-02-35-005C > Feb > 11 > Ignition - Key Difficult To Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: All Technical Service Bulletins Ignition - Key Difficult To Remove,
Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
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Bulletins > All Other Service Bulletins for Ignition Switch Lock Cylinder: > 07-08-44-010B > May > 09 > Navigation System Display Locks Up/Error Messages
Navigation Module: All Technical Service Bulletins Navigation System - Display Locks Up/Error
Messages
TECHNICAL
Bulletin No.: 07-08-44-010B
Date: May 06, 2009
Subject: Navigation Radio Display Locks Up or Displays Error Messages (Update Navigation
Software)
Models:
2006-2007 Buick Lucerne 2007 Chevrolet Equinox 2007 GMC Acadia 2007 Pontiac Torrent 2007
Saturn OUTLOOK Equipped With Navigation Radio - RPO U3U (Equinox, Lucerne, Torrent) or
U3R or UZR (Acadia, OUTLOOK)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being canceled.
Please discard Corporate Bulletin Number 07-08-44-010A (Section 08 - Body & Accessories).
..............................................................................................................................................................
..................................................................................
For vehicles exhibiting the condition stated above, please refer to Corporate Bulletin Number
08-08-44-013C for the latest repair information.
Disclaimer
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Bulletins > Page 5491
Ignition Switch Lock Cylinder: Service and Repair
Key and Lock Cylinder Coding
Use Instruction Sheet Supplied
For the lock cylinder coding procedure, refer to the instruction sheet supplied in the lock cylinder
kit.
For key cutting information, refer to the instructions provided from the manufacturer of the key
cutting equipment used.
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Switches - Ignition System > Knock Sensor > Component Information > Locations
Knock Sensor: Locations
Front Of Engine
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Front Of The Engine
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Rear Of The Engine
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Knock Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Page 5500
Electrical Symbols Part 3
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Page 5501
Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Page 5505
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Page 5507
Knock Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Page 5508
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Page 5509
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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Page 5579
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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Page 5580
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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Page 5581
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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Page 5582
must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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Page 5583
If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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Page 5584
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Page 5586
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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Page 5587
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Page 5589
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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Page 5590
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Page 5591
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Page 5592
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Page 5593
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 5594
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 5595
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 5596
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 5597
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 5598
Knock Sensor: Connector Views
Knock Sensor 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions >
Page 5599
Knock Sensor 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement Bank 1
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 1
KNOCK SENSOR REPLACEMENT - BANK 1
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. If equipped with front wheel drive
(FWD), disconnect the engine wiring harness electrical connector (1) from the knock sensor.
3. If equipped with all wheel drive (AWD), disconnect the engine wiring harness electrical connector
(1) from the knock sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement Bank 1 > Page 5602
4. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement Bank 1 > Page 5603
2. If equipped with AWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor.
3. If equipped with FWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor. 4. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement Bank 1 > Page 5604
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 2
KNOCK SENSOR REPLACEMENT - BANK 2
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Disconnect the engine wiring harness
electrical connector (2) from the knock sensor.
3. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and
Switches - Ignition System > Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement Bank 1 > Page 5605
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
2. Connect the engine wiring harness electrical connector (2) to the knock sensor. 3. Lower the
vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Fuel Pressure >
System Information > Specifications
Fuel Pressure: Specifications
Fuel Pressure (Key ON, Engine OFF)..................................................................................................
..............................................384-425 kPa (56-62 psi)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Fuel Pressure >
System Information > Specifications > Page 5610
Fuel Pressure: Service Precautions
Relieving Fuel Pressure Caution
Caution: Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel
system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a
small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Fuel Pressure >
System Information > System Diagnosis > Fuel Pressure Gage Installation and Removal
Fuel Pressure: Testing and Inspection Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Fuel Pressure >
System Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 5613
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Fuel Pressure >
System Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 5614
Fuel Pressure: Testing and Inspection Fuel System Diagnosis
FUEL SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
CIRCUIT/SYSTEM DESCRIPTION
The control module enables the fuel pump relay when the ignition switch is turned ON. The control
module will disable the fuel pump relay within 2 seconds unless the control module detects ignition
reference pulses. The control module continues to enable the fuel pump relay as long as ignition
reference pulses are detected. The control module disables the fuel pump relay within 2 seconds if
ignition reference pulses cease to be detected and the ignition remains ON.The fuel system is a
returnless on-demand design. The fuel pressure regulator is a part of the primary fuel tank module,
eliminating the need for a return pipe from the engine. A returnless fuel system reduces the internal
temperature of the fuel tank by not returning hot fuel from the engine to the fuel tank. Reducing the
internal temperature of the fuel tank results in lower evaporative emissions. An electric turbine style
fuel pump attaches to the primary fuel tank module inside the fuel tank. The fuel pump supplies
high pressure fuel through the fuel filter, past the fuel pressure regulator, and through the fuel feed
pipe to the fuel injection system. The fuel pressure regulator has a T-joint that diverts the needed
fuel to the fuel rail with the unused fuel dropping back into the reservoir of the primary fuel tank
module. The primary fuel tank module contains a reverse flow check valve. The check valve and
the fuel pressure regulator maintain fuel pressure in the fuel feed pipe and the fuel rail in order to
prevent long cranking times. The primary fuel tank module also contains a primary jet pump and a
secondary jet pump. Fuel pump flow loss, caused by vapor expulsion in the pump inlet chamber, is
diverted to the primary jet pump and the secondary jet pump through a restrictive orifice located on
the pump cover. The primary jet pump fills the reservoir of the primary fuel tank module. The
secondary jet pump creates a venturi action which causes the fuel to be drawn from the secondary
side of the fuel tank, through the fuel transfer pipe, to the primary side of the fuel tank.
CIRCUIT/SYSTEM VERIFICATION
IMPORTANT: Inspect the fuel system for damage or external leaks before proceeding.
- Verify that adequate fuel is in the fuel tank before proceeding.
- The fuel pump relay may need to be commanded ON a few times in order to obtain the highest
possible fuel pressure.
- Before proceeding with this test review the User Manual CH 48027-5 for Safety Information and
Instructions.
1. Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool. You should hear
the fuel pump turn ON and OFF.
- If the fuel pump does not operate, refer to Fuel Pump Electrical Circuit Diagnosis. See:
Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics
2. Ignition OFF, all accessories OFF, install a CH-48027. 3. Ignition ON, engine OFF, command the
fuel pump relay ON with a scan tool. Verify the fuel pressure is between 384-425 kPa (56-62 psi)
and
does not decrease more than 34 kPa (5 psi) in 1 minute.
CIRCUIT/SYSTEM TESTING
1. IMPORTANT:
- The fuel pump relay may need to be commanded ON a few times in order to obtain the highest
possible fuel pressure.
- DO NOT start the engine.
Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool and observe the fuel
pressure gage while the fuel pump is operating. Verify the fuel pressure is between 384-425 kPa
(56-62 psi). If the fuel pressure is greater than the specified range, replace the fuel pump module.
- If the fuel pressure is less than the specified range, test, inspect, and repair the items listed
below. If all items test normal, replace the fuel pump module.
- Restricted fuel feed pipe
- Restricted or plugged strainer
- Inspect the harness connectors and the ground circuits of the fuel pump for poor connections.
2. Verify that the fuel pressure does not decrease more than 34 kPa (5 psi) in 1 minute.
1. If the fuel pressure decreases more than the specified value, perform the following procedure: 2.
Ignition OFF, relieve the fuel pressure. Refer to Fuel Pressure Relief. See: Fuel Filter/Fuel
Pressure Release/Service and Repair 3. Install the J 37287 between the fuel feed pipe and the fuel
rail. 4. Open the valve on the J 37287. 5. Ignition ON, command the fuel pump relay ON with a
scan tool and bleed the air from the CH-48027. 6. Command the fuel pump relay ON and then OFF
with a scan tool. 7. Close the valve on the J 37287. 8. Monitor the fuel pressure for 1 minute.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Fuel Pressure >
System Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 5615
- If the fuel pressure decreases more than 34 kPa (5 psi) within the specified time, locate and
replace the leaking fuel injector(s).
- If the fuel pressure does not decrease more than 34 kPa (5 psi) within the specified time, replace
the fuel pump module.
3. Relieve the fuel pressure to 69 kPa (10 psi). Verify that the fuel pressure does not decrease
more than 14 kPa (2 psi) in 5 minutes.
- If the fuel pressure decreases more than the specified value, replace the primary fuel pump
module.
4. Operate the vehicle within the conditions of the customer's concern while monitoring the fuel
pressure with the CH-48027. The fuel pressure
should not drop off during acceleration, cruise or hard cornering. If the fuel pressure drops off, test, inspect, and repair the items listed below. If all items test normal,
replace the primary fuel pump module.
- Restricted fuel feed pipe
- Restricted or plugged strainer
- Inspect the harness connectors and the ground circuits of the fuel pump for poor connections
5. If the fuel system tests normal, refer to Symptoms - Computers and Control Systems. See:
Computers and Control Systems/Testing and
Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine Controls
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Fuel Hose/Pipes Replacement - Chassis
- Fuel Injector Replacement
- Fuel Hose/Pipes Replacement - Engine Compartment
- Primary Fuel Tank Module Replacement See: Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests and
Procedures
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Idle Speed >
System Information > Specifications
Idle Speed: Specifications
Information not supplied by the manufacturer.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Air Cleaner
Housing > Air Cleaner Fresh Air Duct/Hose > Component Information > Service and Repair
Air Cleaner Fresh Air Duct/Hose: Service and Repair
AIR CLEANER INLET DUCT REPLACEMENT
REMOVAL PROCEDURE
1. Loosen the clamps at both ends of the air cleaner intake duct. 2. Remove the positive crankcase
ventilation (PCV) fresh air pipe from the air cleaner intake duct. 3. Remove the air cleaner intake
duct from the mass air flow (MAF) sensor and throttle body.
INSTALLATION PROCEDURE
1. Install the air cleaner intake duct to the MAF sensor and throttle body. 2. Install the PCV fresh air
pipe to the air cleaner intake duct.
3. NOTE: Refer to Fastener Notice.
Tighten the clamps at both ends of the air cleaner intake duct.
Tighten the clamps to 4 N.m (35 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Air Cleaner
Housing > Air Filter Element > Component Information > Technical Service Bulletins > Customer Interest: > 04-07-30-013B
> Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON
Air Filter Element: Customer Interest Engine, A/T - Shift/Driveability Concerns/MIL ON
Bulletin No.: 04-07-30-013B
Date: February 01, 2007
INFORMATION
Subject: Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon
(SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air
Filter
Models: 2007 and Prior GM Cars and Light Duty Trucks 2007 and Prior Saturn Models 2003-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 04-07-30-013A (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
Service Engine Soon (SES) light on
Transmission shift concerns, slipping and damaged clutch(es) or band(s)
Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF)
sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from
the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an
aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared
to a like vehicle with an OEM air box and filter under the same driving conditions to verify the
concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and
the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with
oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not
considered to be warrantable repair items.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Air Cleaner
Housing > Air Filter Element > Component Information > Technical Service Bulletins > Customer Interest: > 04-07-30-013B
> Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON > Page 5631
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Air Cleaner
Housing > Air Filter Element > Component Information > Technical Service Bulletins > All Technical Service Bulletins: >
04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON
Air Filter Element: All Technical Service Bulletins Engine, A/T - Shift/Driveability Concerns/MIL ON
Bulletin No.: 04-07-30-013B
Date: February 01, 2007
INFORMATION
Subject: Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon
(SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air
Filter
Models: 2007 and Prior GM Cars and Light Duty Trucks 2007 and Prior Saturn Models 2003-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 04-07-30-013A (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
Service Engine Soon (SES) light on
Transmission shift concerns, slipping and damaged clutch(es) or band(s)
Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF)
sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from
the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an
aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared
to a like vehicle with an OEM air box and filter under the same driving conditions to verify the
concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and
the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with
oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not
considered to be warrantable repair items.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Air Cleaner
Housing > Air Filter Element > Component Information > Technical Service Bulletins > All Technical Service Bulletins: >
04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON > Page 5637
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Air Cleaner
Housing > Air Filter Element > Component Information > Technical Service Bulletins > All Other Service Bulletins for Air
Filter Element: > 07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R)
Electronic Noise Suppressor: All Technical Service Bulletins Audio System - Noise When Using
OnStar(R)
TECHNICAL
Bulletin No.: 07-08-46-002D
Date: July 29, 2009
Subject: Audio Whine Noise from Radio Speakers When Using OnStar(R) (Install Noise
Suppression Filter)
Models:
2007-2010 GM Passenger Cars and Trucks (Including Saturn) 2007-2010 HUMMER H2, H3
2007-2009 Saab 9-7X Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update the Warranty Information. Please discard
Corporate Bulletin Number 07-08-46-002C (Section 08 - Body and Accessories).
Condition
Some customers may comment on an audio whine coming from the radio speakers when using the
OnStar(R) system. The amplitude and frequency of the whine will change with an increase or
decrease in engine speed.
Cause
This condition may be caused by electrical noise on the OnStar(R) Vehicle Communication
Interface Module (VCIM) battery feed wire being passed to the microphone output pins at the radio.
Correction
Technicians are to install a noise suppression filter, P/N 1224205, into the OnStar(R) battery
voltage circuit, a few centimeters (inches) from the VCIM. The filter package has three attached
wires - a single yellow wire at one end with a yellow wire and a black wire at the other. Install the
single yellow wire side into the battery voltage circuit towards the VCIM. Install the remaining single
yellow wire into the battery voltage circuit toward the fuse and the black wire to ground.
Important The noise suppression filter is polarity sensitive. The filter is designed to be most
effective when the end with the capacitor ground is connected towards the source of the electrical
noise. Install the filter in this polarity first. If the noise level is still not satisfactory, try disconnecting
the capacitor ground. In some cases, if the first installation does not correct the noise, try reversing
the filter polarity (removing the filter, turning it end for end and then reinstalling it) and grounding
the capacitor lead.
Parts Information
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Air Cleaner
Housing > Air Filter Element > Component Information > Technical Service Bulletins > All Other Service Bulletins for Air
Filter Element: > 07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R) > Page 5643
Warranty Information (Saab U.S. Models)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Air Cleaner
Housing > Air Filter Element > Component Information > Technical Service Bulletins > All Other Service Bulletins for Air
Filter Element: > 07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R) > Page 5649
Warranty Information (Saab U.S. Models)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Air Cleaner
Housing > Air Filter Element > Component Information > Technical Service Bulletins > Page 5650
Air Filter Element: Service and Repair
AIR CLEANER ELEMENT REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Release the clamps (2) on the side of the air cleaner assembly. 4. Remove the air cleaner
assembly lid (1) by tilting to release the lid from the lower housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Air Cleaner
Housing > Air Filter Element > Component Information > Technical Service Bulletins > Page 5651
5. Remove the air cleaner element (2) from the lower housing (1).
INSTALLATION PROCEDURE
1. Install the air cleaner element (2) into the lower housing (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Air Cleaner
Housing > Air Filter Element > Component Information > Technical Service Bulletins > Page 5652
2. Install the air cleaner assembly lid (1) by first engaging the hinge then lower the cover into the
closed position. 3. Fasten the clamps (2) on the side of the air cleaner assembly.
4. Connect the MAF sensor electrical connector. 5. Install the air cleaner intake duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Fuel Filter > Fuel
Pressure Release > System Information > Service and Repair > Fuel Pressure Relief
Fuel Pressure Release: Service and Repair Fuel Pressure Relief
FUEL PRESSURE RELIEF
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
WITH CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Remove the engine cover, if required. 2. Loosen the fuel fill cap in order to relieve the fuel tank
vapor pressure. 3. Remove the fuel rail service port cap.
4. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel will
absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
5. Connect the CH-48027-3 (4) to the fuel rail service port. 6. Connect the CH-48027-2 (2) to the
CH-48027-3 (4). 7. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 8.
Open the valve on the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 9. Close the
valve on the CH-48027-2 (2).
10. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
IMPORTANT: If relieving the fuel pressure for the fuel pressure gage installation and removal, it is
NOT necessary to proceed with the following steps.
11. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Fuel Filter > Fuel
Pressure Release > System Information > Service and Repair > Fuel Pressure Relief > Page 5658
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-2 (2) from the CH-48027-3 (4).
12. Disconnect the CH-48027-3 (4) from the fuel rail service port. 13. Remove the shop towel from
around the fuel rail service port, and place in an approved gasoline container. 14. Install the fuel rail
service port cap. 15. Install the engine cover, if required. 16. Tighten the fuel fill cap.
WITHOUT CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure. 2. Remove the engine
cover, if required. 3. Remove the fuel rail service port cap. 4. Wrap a shop towel around the fuel rail
service port and using a small flat bladed tool, depress (open) the fuel rail test port valve. 5.
Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container. 6. Install the fuel rail service port cap. 7. Install the engine cover, if required. 8. Tighten
the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Fuel Filter > Fuel
Pressure Release > System Information > Service and Repair > Fuel Pressure Relief > Page 5659
Fuel Pressure Release: Service and Repair Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Fuel Filter > Fuel
Pressure Release > System Information > Service and Repair > Fuel Pressure Relief > Page 5660
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Ignition Cable >
Component Information > Specifications
Ignition Cable: Specifications
Spark Plug Wire Resistance.................................................................................................................
......................4,018 ohm per meter (1,225 ohm per ft)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Ignition Cable >
Component Information > Specifications > Page 5664
Ignition Cable: Testing and Inspection
SPARK PLUG WIRE INSPECTION
Spark plug wire integrity is vital for proper engine operation. A thorough inspection will be
necessary to accurately identify conditions that may affect engine operation. Refer to the list below
for items to be inspected.
1. Inspect for correct routing of the spark plug wires. Improper routing may cause cross-firing. 2.
Inspect each wire for any signs of cracks or splits in the wire. 3. Inspect each boot for the following
conditions:
- Tearing
- Piercing
- Arcing
- Carbon tracking
- Corroded terminal\
If corrosion, carbon tracking, or arcing are indicated on a spark plug wire boot or terminal, both the
wire and the component connected to the wire should be replaced.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Ignition Cable >
Component Information > Specifications > Page 5665
Ignition Cable: Service and Repair
SPARK PLUG WIRE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. NOTE: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug
boot only. Do not pull on the spark plug wire
or the wire could be damaged.
Remove the spark plug wires (1) from the left side spark plugs.
3. Remove the spark plug wires from the retaining clips (2).
4. Remove the spark plug wires (1) from the right side spark plugs. 5. Remove the spark plug wires
from the retaining clips (2). 6. Remove the spark plug wires from the ignition coil/control module. 7.
Remove the spark plug wires from the engine. 8. If you are replacing the spark plug wires, transfer
any of the following components:
- Boot heat shields
- Spark plug wire conduit
- Spark plug wire retaining clips
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Ignition Cable >
Component Information > Specifications > Page 5666
INSTALLATION PROCEDURE
1. Install the spark plug wires (1) to the ignition coil/control module. 2. Install the spark plug wires
(1) to the right side spark plugs. 3. Install the spark plug wires to the retaining clips (2).
4. Install the spark plug wires (1) to the left side spark plugs. 5. Install the spark plug wires to the
retaining clips (2). 6. Install the injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Spark Plug >
Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark
Plug Wire Warranty Extension
Technical Service Bulletin # 10250 Date: 110131
Campaign - Spark Plug Wire Warranty Extension
SPECIAL COVERAGE
Bulletin No.: 10250
Date: January 31, 2011
Subject: 10250 - Special Coverage Adjustment - Spark Plug Wire Warranty Extension
Models:
2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped with a 3.4L Engine (LNJ) 2008
Chevrolet Express, Silverado 2008 GMC Savana, Sierra Equipped with 4.3L Engine (LU3)
Condition
Some customers of 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles
equipped with a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra
vehicles equipped with a 4.3L engine (LU3) may comment about rough engine operation and the
illumination of the Check Engine Light. This may be caused by spark plug wire boots that do not
provide a sufficiently robust dielectric seal to withstand the high voltage required to fire the spark
plugs.
Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000
miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in
service, regardless of ownership. Dealers are to replace all spark plug wires and, if necessary, the
spark plug. The repairs will be made at no charge to the customer. For vehicles covered by Vehicle
Service Contracts, all eligible claims with repair orders on or after January 5, 2011, are covered by
this special coverage and must be submitted using the labor operation codes provided with this
bulletin. Claims with repair orders prior to January 5, 2011, must be submitted to the Service
Contract provider.
Vehicles Involved
Involved are 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with
a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra vehicles
equipped with a 4.3L engine (LU3).
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate
Vehicle History (GMVIS2) Application in the Applicable Warranties section. Dealership technicians
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs.
Parts Information
Parts required to complete this special coverage are to be obtained from General Motors Customer
Care and Aftersales (GMCC&A;).
* Not eligible for RIM initially for US and Canada, until sufficient inventory levels are reached.
Service Procedure
1. Connect a scan tool and start the engine. 2. Determine if any cylinders have a misfire condition.
- If a misfire condition is present or diagnostic trouble codes (DTCs) PO300-PO306 are current or
set in history, remove all of the spark plug wires and replace them with new spark plug wire set.
Refer to Spark Plug Wire Replacement in SI. Proceed to Step 3.
- If a misfire condition is NOT present in any cylinder, do NOT replace the spark plug wires. Refer
to the appropriate diagnostic information in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Spark Plug >
Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark
Plug Wire Warranty Extension > Page 5675
SI to determine the cause of the problem. Repairs that are not related to this Special Coverage
must be billed as warranty, customer pay, or goodwill.
3. Remove the spark plug from the misfiring cylinder. The spark plug should have evidence of
carbon tracking (1). Replace the spark plug that shows
evidence of carbon tracking. Refer to Spark Plug Replacement in SI.
4. Clear DTCs using a scan tool.
Customer Reimbursement - For US
All customer requests for reimbursement for previous repairs for the special coverage condition will
be handled by the Customer Assistance Center, not by dealers.
A General Motors Customer Reimbursement Procedure and Claim Form is included with the
customer letter.
Important Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific
procedures regarding customer reimbursement and the form.
Customer Reimbursement - For Canada and Export
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer prior to or by January 31, 2012. Repairs must have
occurred within the 10 years of the date the vehicle was originally placed in service, or 193,000
kilometers, whichever occurs first.
When a customer requests reimbursement, they must provide the following:
- Proof of ownership at time of repair.
- Original paid receipt confirming the amount of unreimbursed repair expense(s) (including Service
Contract deductibles), a description of the repair, and the person or entity performing the repair.
If the work was done by someone other than a GM dealership, the amount of reimbursement will
be limited to the amount that the repair would have cost GM to have it completed by a GM
dealership.
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Warranty Transaction Information
Submit a transaction using the table below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Spark Plug >
Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark
Plug Wire Warranty Extension > Page 5676
* The amount identified in "Net Item" should represent the dollar amount reimbursed to the
customer.
Customer Notification
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
Disclaimer
Owner Letter
Owner Letter
January 2011
Dear General Motors Customer:
As the owner of a 2007-2009 model year Chevrolet Equinox or Pontiac Torrent vehicle, or a 2008
Chevrolet Express, Silverado; GMC Savana or Sierra vehicle, your satisfaction with our product is
very important to us.
This letter is intended to make you aware that some 2007-2009 model year Chevrolet Equinox and
Pontiac Torrent vehicles, and some 2008 Chevrolet Express, Silverado; GMC Savana, and Sierra
vehicles may exhibit rough engine operation and the illumination of the Check Engine Light. This
may be caused by spark plug wire boots that do not provide a sufficiently robust dielectric seal to
withstand the high voltage required to fire the spark plugs.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your
vehicle has the condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the spark
plug wires. If this condition occurs on your 2007-2009 model year Chevrolet Equinox or Pontiac
Torrent vehicle, or 2008 Chevrolet Express, Silverado; GMC Savana or Sierra vehicle within 10
years of the date your vehicle was originally placed in service or 120,000 miles (193.000 km),
whichever occurs first, the condition will be repaired for you at no charge. Diagnosis or repair for
conditions other than the condition described above is not covered under this special coverage
program.
What You Should Do: If you believe that your vehicle has the condition described above, repairs
and adjustments qualifying under this special coverage must be performed by a General Motors
dealer. You may want to contact your GM dealer to find out how long they will need to have your
vehicle so that you may schedule the appointment at a time that is convenient for you. This will also
allow your dealer to order parts if they are not already in stock. Keep this letter with your other
important glove box literature for future reference.
Reimbursement: The enclosed form explains what reimbursement is available and how to request
reimbursement if you have paid for repairs for the special coverage condition. Your request for
reimbursement, including the information and documents mentioned on the enclosed form, must be
received by GM by January 31, 2012. If you have any questions or need any assistance to better
understand related repairs, please contact your dealer.
If you have questions related to a potential reimbursement, please contact the appropriate
Customer Assistance Center at the number listed below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Spark Plug >
Component Information > Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark
Plug Wire Warranty Extension > Page 5677
We are sorry for any inconvenience you may experience; however we have taken this action in the
interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
10250
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Spark Plug >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension
Technical Service Bulletin # 10250 Date: 110131
Campaign - Spark Plug Wire Warranty Extension
SPECIAL COVERAGE
Bulletin No.: 10250
Date: January 31, 2011
Subject: 10250 - Special Coverage Adjustment - Spark Plug Wire Warranty Extension
Models:
2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped with a 3.4L Engine (LNJ) 2008
Chevrolet Express, Silverado 2008 GMC Savana, Sierra Equipped with 4.3L Engine (LU3)
Condition
Some customers of 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles
equipped with a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra
vehicles equipped with a 4.3L engine (LU3) may comment about rough engine operation and the
illumination of the Check Engine Light. This may be caused by spark plug wire boots that do not
provide a sufficiently robust dielectric seal to withstand the high voltage required to fire the spark
plugs.
Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000
miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in
service, regardless of ownership. Dealers are to replace all spark plug wires and, if necessary, the
spark plug. The repairs will be made at no charge to the customer. For vehicles covered by Vehicle
Service Contracts, all eligible claims with repair orders on or after January 5, 2011, are covered by
this special coverage and must be submitted using the labor operation codes provided with this
bulletin. Claims with repair orders prior to January 5, 2011, must be submitted to the Service
Contract provider.
Vehicles Involved
Involved are 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with
a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra vehicles
equipped with a 4.3L engine (LU3).
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate
Vehicle History (GMVIS2) Application in the Applicable Warranties section. Dealership technicians
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs.
Parts Information
Parts required to complete this special coverage are to be obtained from General Motors Customer
Care and Aftersales (GMCC&A;).
* Not eligible for RIM initially for US and Canada, until sufficient inventory levels are reached.
Service Procedure
1. Connect a scan tool and start the engine. 2. Determine if any cylinders have a misfire condition.
- If a misfire condition is present or diagnostic trouble codes (DTCs) PO300-PO306 are current or
set in history, remove all of the spark plug wires and replace them with new spark plug wire set.
Refer to Spark Plug Wire Replacement in SI. Proceed to Step 3.
- If a misfire condition is NOT present in any cylinder, do NOT replace the spark plug wires. Refer
to the appropriate diagnostic information in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Spark Plug >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension > Page 5683
SI to determine the cause of the problem. Repairs that are not related to this Special Coverage
must be billed as warranty, customer pay, or goodwill.
3. Remove the spark plug from the misfiring cylinder. The spark plug should have evidence of
carbon tracking (1). Replace the spark plug that shows
evidence of carbon tracking. Refer to Spark Plug Replacement in SI.
4. Clear DTCs using a scan tool.
Customer Reimbursement - For US
All customer requests for reimbursement for previous repairs for the special coverage condition will
be handled by the Customer Assistance Center, not by dealers.
A General Motors Customer Reimbursement Procedure and Claim Form is included with the
customer letter.
Important Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific
procedures regarding customer reimbursement and the form.
Customer Reimbursement - For Canada and Export
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer prior to or by January 31, 2012. Repairs must have
occurred within the 10 years of the date the vehicle was originally placed in service, or 193,000
kilometers, whichever occurs first.
When a customer requests reimbursement, they must provide the following:
- Proof of ownership at time of repair.
- Original paid receipt confirming the amount of unreimbursed repair expense(s) (including Service
Contract deductibles), a description of the repair, and the person or entity performing the repair.
If the work was done by someone other than a GM dealership, the amount of reimbursement will
be limited to the amount that the repair would have cost GM to have it completed by a GM
dealership.
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Warranty Transaction Information
Submit a transaction using the table below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Spark Plug >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension > Page 5684
* The amount identified in "Net Item" should represent the dollar amount reimbursed to the
customer.
Customer Notification
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
Disclaimer
Owner Letter
Owner Letter
January 2011
Dear General Motors Customer:
As the owner of a 2007-2009 model year Chevrolet Equinox or Pontiac Torrent vehicle, or a 2008
Chevrolet Express, Silverado; GMC Savana or Sierra vehicle, your satisfaction with our product is
very important to us.
This letter is intended to make you aware that some 2007-2009 model year Chevrolet Equinox and
Pontiac Torrent vehicles, and some 2008 Chevrolet Express, Silverado; GMC Savana, and Sierra
vehicles may exhibit rough engine operation and the illumination of the Check Engine Light. This
may be caused by spark plug wire boots that do not provide a sufficiently robust dielectric seal to
withstand the high voltage required to fire the spark plugs.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your
vehicle has the condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the spark
plug wires. If this condition occurs on your 2007-2009 model year Chevrolet Equinox or Pontiac
Torrent vehicle, or 2008 Chevrolet Express, Silverado; GMC Savana or Sierra vehicle within 10
years of the date your vehicle was originally placed in service or 120,000 miles (193.000 km),
whichever occurs first, the condition will be repaired for you at no charge. Diagnosis or repair for
conditions other than the condition described above is not covered under this special coverage
program.
What You Should Do: If you believe that your vehicle has the condition described above, repairs
and adjustments qualifying under this special coverage must be performed by a General Motors
dealer. You may want to contact your GM dealer to find out how long they will need to have your
vehicle so that you may schedule the appointment at a time that is convenient for you. This will also
allow your dealer to order parts if they are not already in stock. Keep this letter with your other
important glove box literature for future reference.
Reimbursement: The enclosed form explains what reimbursement is available and how to request
reimbursement if you have paid for repairs for the special coverage condition. Your request for
reimbursement, including the information and documents mentioned on the enclosed form, must be
received by GM by January 31, 2012. If you have any questions or need any assistance to better
understand related repairs, please contact your dealer.
If you have questions related to a potential reimbursement, please contact the appropriate
Customer Assistance Center at the number listed below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Spark Plug >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 >
Campaign - Spark Plug Wire Warranty Extension > Page 5685
We are sorry for any inconvenience you may experience; however we have taken this action in the
interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
10250
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Spark Plug >
Component Information > Technical Service Bulletins > Page 5686
Spark Plug: Specifications
Spark Plug Gap....................................................................................................................................
.........................................................1.52 mm (0.60 in)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Spark Plug >
Component Information > Technical Service Bulletins > Page 5687
Spark Plug: Testing and Inspection
SPARK PLUG INSPECTION
SPARK PLUG USAGE
- Ensure that the correct spark plug is installed. An incorrect spark plug causes driveability
conditions. Refer to Ignition System Specifications for the correct spark plug.
- Ensure that the spark plug has the correct heat range. An incorrect heat range causes the
following conditions: Spark plug fouling-Colder plug
- Pre-ignition causing spark plug and/or engine damage-Hotter plug
SPARK PLUG INSPECTION
- Inspect the terminal post (1) for damage. Inspect for a bent or broken terminal post (1).
- Test for a loose terminal post (1) by twisting and pulling the post. The terminal post (1) should
NOT move.
- Inspect the insulator (2) for flashover or carbon tracking, soot. This is caused by the electrical
charge traveling across the insulator (2) between the terminal post (1) and ground. Inspect for the
following conditions: Inspect the spark plug boot for damage.
- Inspect the spark plug recess area of the cylinder head for moisture, such as oil, coolant, or
water. A spark plug boot that is saturated causes arcing to ground.
- Inspect the insulator (2) for cracks. All or part of the electrical charge may arc through the crack
instead of the electrodes (3, 4).
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- Inspect for evidence of improper arcing. Measure the gap between the center electrode (4) and the side electrode (3) terminals. An
excessively wide electrode gap can prevent correct spark plug operation.
- Inspect for the correct spark plug torque. Insufficient torque can prevent correct spark plug
operation. An over torqued spark plug, causes the insulator (2) to crack.
- Inspect for signs of tracking that occurred near the insulator tip instead of the center electrode (4).
- Inspect for a broken or worn side electrode (3).
- Inspect for a broken, worn, or loose center electrode (4) by shaking the spark plug. A rattling sound indicates internal damage.
- A loose center electrode (4) reduces the spark intensity.
- Inspect for bridged electrodes (3, 4). Deposits on the electrodes (3, 4) reduce or eliminates the
gap.
- Inspect for worn or missing platinum pads on the electrodes (3, 4), if equipped.
- Inspect for excessive fouling.
- Inspect the spark plug recess area of the cylinder head for debris. Dirty or damaged threads can
cause the spark plug not to seat correctly during installation.
SPARK PLUG VISUAL INSPECTION
- Normal operation-Brown to grayish-tan with small amounts of white powdery deposits are normal
combustion by-products from fuels with additives.
- Carbon fouled-Dry, fluffy, black carbon or soot caused by the following conditions: Rich fuel mixtures Leaking fuel injectors
- Excessive fuel pressure
- Restricted air filter element
- Incorrect combustion
- Reduced ignition system voltage output Weak coils
- Worn ignition wires
- Incorrect spark plug gap
- Excessive idling or slow speeds under light loads can keep spark plug temperatures so low that
normal combustion deposits may not burn off.
- Deposit fouling-Oil, coolant, or additives that include substances such as silicone, very white
coating, reduces the spark intensity. Most powdery deposits will not effect spark intensity unless
they form into a glazing over the electrode.
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Component Information > Technical Service Bulletins > Page 5689
Spark Plug: Service and Repair
SPARK PLUG REPLACEMENT
REMOVAL PROCEDURE
NOTE: Observe the following service precautions:
- Allow the engine to cool before removing the spark plugs. Attempting to remove spark plugs from
a hot engine can cause the spark plugs to seize. This can damage the cylinder head threads.
- Clean the spark plug recess area before removing the spark plug. Failure to do so can result in
engine damage due to dirt or foreign material entering the cylinder head, or in contamination of the
cylinder head threads. Contaminated threads may prevent proper seating of the new spark plug.
- Use only the spark plugs specified for use in the vehicle. Do not install spark plugs that are either
hotter or colder than those specified for the vehicle. Installing spark plugs of another type can
severely damage the engine.
1. Remove the spark plug wires from the spark plugs.
2. Remove the spark plugs (1) from the cylinder head.
INSTALLATION PROCEDURE
1. NOTE: It is important to check the gap of all new and reconditioned spark plugs before
installation. Pre-set gaps may have changed during
handling. Use a round wire feeler gauge to be sure of an accurate check, particularly on used
plugs. Installing plugs with the wrong gap can cause poor engine performance and may even
damage the engine.
Gap the spark plugs to the specifications. Refer to Ignition System Specifications.
2. NOTE:
- Be sure plug threads smoothly into cylinder head and is fully seated. Use a thread chaser if
necessary to clean threads in cylinder head. Cross-threading or failing to fully seat spark plug can
cause overheating of plug, exhaust blow-by, or thread damage. Follow the recommended torque
specifications carefully. Over or under-tightening can also cause severe damage to engine or spark
plug.
- Refer to Component Fastener Tightening Notice.
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IMPORTANT: ONLY when the cylinder head is replaced with a NEW cylinder head, the FIRST time
the spark plugs are installed, tighten the spark plugs to 20 N.m (15 lb ft). All subsequent tightening
of the spark plugs, tighten to 15 N.m (11 lb ft).
Install the spark plugs to the cylinder head.
Tighten the spark plugs to 15 N.m (11 lb ft).
3. Install the spark plug wires to the spark plugs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Tune-up and Engine Performance Checks > Compression
Check > System Information > Specifications
Compression Check: Specifications
The lowest reading should not be less than 70 percent of the highest reading. No cylinder reading
should be less than
................................................................................................................................................... 689
kPa (100 psi).
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Compression Check: Testing and Inspection
Engine Compression Test
A compression pressure test of the engine cylinders determines the condition of the rings, the
valves, and the head gasket.
Important: Remove the Powertrain Control Module (PCM) and the ignition fuses from the I/P fuse
block.
1. Disable the ignition. 2. Disable the fuel systems. 3. Remove the spark plugs from all the
cylinders. 4. Remove the air duct from the throttle body. 5. Block the throttle plate in the open
position. 6. Measure the engine compression, using the following procedure:
1. Firmly install the compression gauge to the spark plug hole. 2. Have an assistant crank the
engine through at least 4 compression strokes in the testing cylinder. 3. Record the readings on the
gauge at each stroke. 4. Disconnect the gauge. 5. Repeat the compression test for each cylinder.
7. Record the compression readings from all of the cylinders.
* The lowest reading should not be less than 70 percent of the highest reading.
* No cylinder reading should be less than 689 kPa (100 psi).
8. The following list contains examples of the possible measurements:
* When the compression measurement is normal, the compression builds up quickly and evenly to
the specified compression on each cylinder.
* When the compression is low on the first stroke and tends to build up on the following strokes, but
does not reach the normal compression, the piston rings may be the cause.
* If the compression improves considerably with the addition of three squirts of oil, the piston rings
may be the cause.
* When the compression is low on the first stroke and does not build up in the following strokes, the
valves may be the cause.
* The addition of oil does not affect the compression, the valves may be the cause.
* When the compression is low on two adjacent cylinders, or coolant is present in the crankcase,
the head gasket may be the cause.
9. Remove the block from the throttle plate.
10. Install the air duct to the throttle body. 11. Install the spark plugs. 12. Install the Powertrain
Control Module (PCM) fuse. 13. Install the ignition fuse to the I/P fuse block.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Accelerator Pedal Position
Sensor > Component Information > Locations
Pedal Assemblies
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Sensor > Component Information > Locations > Page 5699
Accelerator Pedal Position Sensor: Service and Repair
ACCELERATOR PEDAL POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the instrument panel left lower closeout panel.
2. Remove the connector position assurance (CPA) from the accelerator pedal position (APP)
sensor connector. 3. Disconnect the APP sensor harness connector.
4. IMPORTANT: Due to clearance issues, the upper attachment bolt cannot be removed from the
accelerator pedal assembly. Loose then
bolt completely and leave the bolt in the component until the assembly is removed from the vehicle.
Remove the APP assembly attachment bolts.
5. Remove the APP assembly from the vehicle.
INSTALLATION PROCEDURE
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1. Install the upper attachment bolt into the APP assembly. 2. Install the APP assembly into the
vehicle.
3. NOTE: Refer to Fastener Notice.
Install the remaining attachment bolts into the APP assembly.
Tighten the bolts to 25 N.m (18 lb ft).
4. Connect the APP sensor harness connector. Push the connector in until the lock position is felt,
then pull back to confirm engagement. 5. Install the CPA to the APP sensor harness connector. 6.
Install the instrument panel left lower closeout panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Locations
Air Induction Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions
Air Flow Meter/Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Component Information > Diagrams > Diagram Information and Instructions > Page 5709
Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Component Information > Diagrams > Diagram Information and Instructions > Page 5712
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Component Information > Diagrams > Diagram Information and Instructions > Page 5714
Air Flow Meter/Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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Component Information > Diagrams > Diagram Information and Instructions > Page 5741
View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5742
View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5745
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 5755
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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Component Information > Diagrams > Diagram Information and Instructions > Page 5772
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5773
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 5774
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 5775
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5776
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 5777
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5778
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 5779
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 5780
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 5781
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5782
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5783
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5785
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5786
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5787
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5788
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5794
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5795
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5796
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5797
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5798
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5799
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5800
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5801
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5802
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5803
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5804
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 5805
Mass Air Flow (MAF) Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Page 5806
Air Flow Meter/Sensor: Service and Repair
MASS AIRFLOW SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Remove the screws that retain the MAF to the air cleaner assembly. 4. Remove the MAF from
the air cleaner assembly. 5. Remove the MAF to air cleaner assembly seal.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor >
Component Information > Diagrams > Page 5807
1. Install the seal to the MAF. 2. Install the MAF to the air cleaner assembly.
3. NOTE: Refer to Fastener Notice.
Install the screws that retain the MAF to the air cleaner assembly.
Tighten the screws to 4 N.m (35 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Intake Air Temperature
Sensor > Component Information > Locations
Air Induction Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Battery Current Sensor >
Component Information > Diagrams
Battery Current Sensor: Diagrams
Engine Electrical Connector End Views
Battery Current Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Battery Current Sensor >
Component Information > Diagrams > Page 5814
Battery Current Sensor: Service and Repair
Battery Current Sensor Replacement
Removal Procedure
1. Remove the negative battery cable. 2. Mark the location of the battery current sensor on the
battery cable with tape for reference during installation. 3. Remove the tape securing the battery
current sensor to the negative battery cable. 4. Mark the location of the negative battery cable clips
and remove the clip from the cable. 5. Squeeze the negative battery cable branches together.
Important: Note the orientation of the battery current sensor prior to removal.
6. Slide the battery current sensor (1) off of the negative battery cable.
Installation Procedure
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Battery Current Sensor >
Component Information > Diagrams > Page 5815
1. Squeeze the negative battery cable branches together.
Important: Ensure the battery current sensor is installed in the correct direction and location on the
negative battery cable.
2. Slide the NEW battery current sensor (1) up onto the negative battery cable to the location
previously marked during removal. 3. Wrap electrical tape around the battery current sensor leg in
order to secure the sensor to the negative battery cable. 4. Install the negative battery cable clip to
the cable to the locations previously marked during removal. 5. Install the negative battery cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > Customer Interest: > 07-08-43-006 > Jul > 07 > Wipers - Wipers
Work On One Speed/Turn Signal Lever Inop
Body Control Module: Customer Interest Wipers - Wipers Work On One Speed/Turn Signal Lever
Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > Customer Interest: > 07-08-43-006 > Jul > 07 > Wipers - Wipers
Work On One Speed/Turn Signal Lever Inop > Page 5824
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > Customer Interest: > 06-06-03-009 > Oct > 06 > Electrical - Battery
Goes Dead Overnight
Body Control Module: Customer Interest Electrical - Battery Goes Dead Overnight
Bulletin No.: 06-06-03-009
Date: October 19, 2006
INFORMATION
Subject: Diagnostic Information on Battery Draw No Start - Body Control Module, BCM Power
Timer
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2006-2007 Chevrolet Impala, Monte
Carlo 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Tahoe, Silverado, Suburban 2007 GMC Sierra, Yukon, Yukon XL, Denali, Denali XL 2007
Pontiac Torrent
When performing normal diagnosis on a battery that has gone dead overnight, a technician may
notice that the vehicle has approximately 4.1 amp draw on the system. The draw may be steady or
may drop down to a low milliamp reading for 1-2 seconds and then rise back up to the 4.1 amp
range. If this amp draw condition is observed, check for aftermarket accessories or an improperly
installed GM accessory that is wired into circuit 6815 (orange wire) for courtesy lamps. Anytime
aftermarket accessories are installed into the courtesy lamp circuit, it can cause the inadvertent
power timer in the body control module (BCM) to keep resetting. The BCM will remain awake and
cause the draw of approximately 4.1 amps.
When servicing a vehicle with this concern, back out pin 1 of the connector 2 at the BCM and see if
the draw goes away. If the draw goes away, check for an aftermarket accessory (Lojack,
non-factory DVD system, alarm, etc.) that is improperly installed in circuit 6815.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 09-08-47-001A > Jun > 10 > Body
Controls - Unable To Reprogram Body Control Module
Body Control Module: All Technical Service Bulletins Body Controls - Unable To Reprogram Body
Control Module
INFORMATION
Bulletin No.: 09-08-47-001A
Date: June 14, 2010
Subject: Unable to Reprogram Body Control Module (BCM), BCM Reprogramming Did Not
Complete - Revised Reprogramming Instructions
Models:
2006-2010 Buick Lucerne 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade, Escalade ESV,
Escalade EXT, SRX 2008-2010 Cadillac CTS 2010 Cadillac CTS Wagon 2010 Chevrolet Camaro
2006-2007 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala 2007-2010 Chevrolet Avalanche,
Equinox, Silverado, Suburban, Tahoe 2008-2010 Chevrolet Express 2009-2010 Chevrolet
Traverse 2007-2010 GMC Acadia, Sierra, Yukon, Yukon XL, Yukon Denali, Yukon Denali XL
2008-2010 GMC Savana 2010 GMC Terrain 2007-2009 Pontiac Torrent 2008-2009 Pontiac G8
2008-2009 HUMMER H2 2007-2009 Saturn OUTLOOK 2008-2009 Saturn VUE Refer to GMVIS
Supercede: This bulletin is being revised to update the models and the model years. Please
discard Corporate Bulletin Number 09-08-47-001 (Section 08 - Body and Accessories).
Some technicians may experience an unsuccessful body control module (BCM) reprogramming
event, when choosing the Reprogram ECU selection on the Service Programming System (SPS).
The technician may also notice that when attempting to reprogram the BCM again after this
incident has occurred, the BCM may not complete the programming event.
This condition may be caused by the following:
- A reprogramming event that was interrupted due to a lack of communication between the vehicle
and the TIS2WEB terminal.
- The vehicle experienced low system voltage during the reprogramming event.
Important Do not replace the BCM for this condition.
SPS Programming Process Selection
Perform this procedure first.
1. If reprogramming has failed during the initial reprogramming event, back out of the SPS
application completely. 2. Re-select SPS from the TIS2WEB terminal application. 3. When
selecting the Programming Process , choose Replace and Program ECU , even though a new
BCM is NOT being installed. 4. Reprogram the BCM using the Service Programming System (SPS)
with the latest calibration available on TIS2WEB. Refer to the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 09-08-47-001A > Jun > 10 > Body
Controls - Unable To Reprogram Body Control Module > Page 5834
During programming, the battery voltage must be maintained within the proper range of 12-15
volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
BCM Still Fails to Reprogram
If the BCM still fails to reprogram perform this procedure:
1. Turn OFF the ignition, and remove the key. 2. Remove the fuses that power up the following
modules/components for a minimum of 2 minutes:
- BCM
- EBCM
- ECM
- IS LPS (located in the left IP fusebox)
- TCM
3. Open and close the driver door. Allow enough time for the retained accessory power (RAP) to
turn OFF. 4. Reinstall the fuses. 5. When selecting the Programming Process , choose Replace
and Program ECU , even though a new BCM is NOT being installed. 6. Reprogram the BCM using
the Service Programming System (SPS) with the latest calibration available on TIS2WEB. Refer to
the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 07-08-47-004C > Dec > 09 > Body
Controls - Body Control Module (BCM) Grounds
Body Control Module: All Technical Service Bulletins Body Controls - Body Control Module (BCM)
Grounds
INFORMATION
Bulletin No.: 07-08-47-004C
Date: December 04, 2009
Subject: Information on Body Control Module (BCM) Grounds
Models:
2006-2010 Buick Lucerne 2007-2010 Buick Enclave 2006-2010 Cadillac DTS 2007-2009 Cadillac
SRX 2008-2010 Cadillac CTS 2006-2008 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala
2007-2009 Chevrolet Equinox 2008-2010 Chevrolet Express, Traverse 2007-2010 GMC Acadia
2008-2010 GMC Savana 2007-2009 Pontiac Torrent 2007-2010 Saturn OUTLOOK 2008-2010
Saturn VUE 2008-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models, model years and information.
Please discard Corporate Bulletin Number 07-08-47-004B (Section 08 - Body & Accessories).
The purpose of this bulletin is to inform dealers of an issue that could cause internal module
damage to the Body Control Module (BCM).
The BCM may be damaged when the module is supplied with battery power and the ground path is
removed. You must remove the negative battery cable first before removing a BCM ground.
Issue 1
Below is a list of vehicles and the components that the BCM ground path passes through. The
negative battery cable must be removed when removing the components noted below.
- 2008-2010 HUMMER H2 (Instrument panel electrical center)
- 2008-2010 Saturn VUE (I/P splice pack)
Issue 2
It is important to note when removing a ring terminal ground, splice pack connector, or inline
harness connector for all the vehicles listed in the model section above, that it doesn't include a
BCM ground path. You must remove the negative battery cable if you determine that it is a BCM
ground path.
As an example: If the BCM grounds become disconnected, internal damage to the BCM will occur.
Other systems controlled by the BCM will also be affected, such as an inoperative or intermittent
condition in one or more of the following systems:
- Interior lighting will remain on or will not work
- Exterior lighting will remain on or will not work
- Remote keyless entry
- Door locks
- Power windows and mirrors
- Remote vehicle start
- Remote trunk release
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 07-08-47-004C > Dec > 09 > Body
Controls - Body Control Module (BCM) Grounds > Page 5839
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 07-08-43-006 > Jul > 07 > Wipers
- Wipers Work On One Speed/Turn Signal Lever Inop
Body Control Module: All Technical Service Bulletins Wipers - Wipers Work On One Speed/Turn
Signal Lever Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 07-08-43-006 > Jul > 07 > Wipers
- Wipers Work On One Speed/Turn Signal Lever Inop > Page 5844
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 06-06-03-009 > Oct > 06 >
Electrical - Battery Goes Dead Overnight
Body Control Module: All Technical Service Bulletins Electrical - Battery Goes Dead Overnight
Bulletin No.: 06-06-03-009
Date: October 19, 2006
INFORMATION
Subject: Diagnostic Information on Battery Draw No Start - Body Control Module, BCM Power
Timer
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2006-2007 Chevrolet Impala, Monte
Carlo 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Tahoe, Silverado, Suburban 2007 GMC Sierra, Yukon, Yukon XL, Denali, Denali XL 2007
Pontiac Torrent
When performing normal diagnosis on a battery that has gone dead overnight, a technician may
notice that the vehicle has approximately 4.1 amp draw on the system. The draw may be steady or
may drop down to a low milliamp reading for 1-2 seconds and then rise back up to the 4.1 amp
range. If this amp draw condition is observed, check for aftermarket accessories or an improperly
installed GM accessory that is wired into circuit 6815 (orange wire) for courtesy lamps. Anytime
aftermarket accessories are installed into the courtesy lamp circuit, it can cause the inadvertent
power timer in the body control module (BCM) to keep resetting. The BCM will remain awake and
cause the draw of approximately 4.1 amps.
When servicing a vehicle with this concern, back out pin 1 of the connector 2 at the BCM and see if
the draw goes away. If the draw goes away, check for an aftermarket accessory (Lojack,
non-factory DVD system, alarm, etc.) that is improperly installed in circuit 6815.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules
Wiring Harness: All Technical Service Bulletins Electrical - MIL ON/DTC's Set By Various Control
Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 5854
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 5855
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 5856
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair
Wiring Harness: All Technical Service Bulletins Electrical - Information For Electrical Ground Repair
INFORMATION
Bulletin No.: 10-08-45-001B
Date: October 25, 2010
Subject: Information for Electrical Ground Repair - Use New Replacement Fasteners with
Conductive Finish
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add the 2011 model year and update the Warranty
Information. Please discard Corporate Bulletin Number 10-08-45-001A (Section 08 - Body and
Accessories).
Electrical Ground Repair Overview
Proper electrical system function relies on secure, stable and corrosion-free electrical ground
connections. Loose, stripped, or corroded connections increase the possibility of improper system
function and loss of module communication. These conditions may also lead to unnecessary
repairs and component replacement.
In general, electrical ground connections are accomplished using one, or a combination of the
following attachment methods:
- Welded M6 stud and nut
- Welded M6 nut and bolt
- Welded M8 nut and bolt
Determine which attachment method is used and perform the appropriate or alternative repair as
described in this bulletin.
M6 Weld Stud Replacement
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. Select a location adjacent the damaged or missing M6 ground stud having 20 mm (0.79 in)
clearance behind the panel surface and 20 mm (0.79 in)
clearance surrounding the M6 conductive rivet stud flange.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
3. Drill a 10 mm (0.40 in) diameter hole through the panel.
4. Remove paint and primer from the area surrounding the 10 mm (0.40 in) hole until bare metal is
visible.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5861
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
5. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
6. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
7. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 8. Ensure the rivet stud is securely fastened, WITHOUT ANY detectable movement. 9.
Completely wrap the threads of the rivet stud with painters tape or equivalent.
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the ground wire terminal and conductive nut to maintain a secure, stable and
corrosion-free electrical ground.
10. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 11. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 12. Remove the painters tape or equivalent from the rivet
stud threads. 13. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 14. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5862
15. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 16. Install the electrical ground wire terminal to the rivet stud. 17. Select a M6
conductive nut. Refer to the Parts Information section of this bulletin. 18. Install the M6 conductive
nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in).
19. Verify proper system operation.
M6 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M6 weld nut at the electrical ground location is damaged or stripped, a M7 conductive
self-threading bolt may be used to secure the ground
wire terminal.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the weld nut and allow to dry. 3. Remove any loose metal particles from the damaged
or stripped weld nut with a stiff brush. 4. Select a M7 conductive self-threading bolt. Refer to the
Parts Information section of this bulletin 5. Using a small brush, apply Dielectric Lubricant GM P/N
12377900 (Canadian P/N 10953529) to the threads of the M7 conductive self-threading
bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
6. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 7. Install the electrical ground wire terminal to the M7 conductive self-threading bolt.
8. Install the M7 conductive self-threading bolt and:
Tighten Tighten to 9 Nm (80 lb in).
9. Verify proper system operation.
M6 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the electrical ground location is accessible from both sides of the panel, a M6 conductive bolt
and a M6 conductive nut may be used to secure
the electrical ground wire terminal. Refer to the Parts Information section of this bulletin.
2. Select a location adjacent the damaged M6 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 8.5 mm (0.33 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 8.5 mm (0.33 in) hole until bare metal is visible. 6. Select a M6 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M6 conductive bolt to the ground
location.
10. Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M6 conductive nut to the bolt and:
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
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10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5863
Tighten Tighten to 8 Nm (71 lb in).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is accessible from both sides of the panel, a M8
conductive bolt and a M8 conductive nut may be
used to secure the electrical ground wire terminal. Refer to the Parts Information section of this
bulletin.
2. Select a location adjacent the M8 weld nut having 20 mm (0.79 in) clearance behind the panel
surface and 20 mm (0.79 in) clearance surrounding
the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 10 mm (0.40 in) hole until bare metal is visible. 6. Select a M8 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M8 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M8 conductive bolt to the ground
location.
10. Select a M8 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M8 conductive nut to the bolt and:
Tighten Tighten to 22 Nm (16 lb ft).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is not accessible from both sides of the panel, a M6
conductive rivet stud and a M6 conductive nut
may be used to secure the electrical ground wire terminal.
2. Select a location adjacent the damaged M8 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the M6 conductive rivet stud flange.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel.
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10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5864
5. Remove paint and primer from the area surrounding the 10 mm (0.40 in) until bare metal is
visible.
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
6. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
7. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
8. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 9. Ensure the new rivet stud is securely fastened, WITHOUT ANY detectable movement.
10. Completely wrap the threads of the rivet stud with painters tape or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5865
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the electrical ground wire terminal and conductive nut to maintain a secure, stable
and corrosion-free electrical ground.
11. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 12. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 13. Remove the painters tape or equivalent from the rivet
stud threads. 14. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 15. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
16. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 17. Install the electrical ground wire terminal to the M6 conductive rivet stud. 18.
Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 19. Install the M6
conductive nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in)
20. Verify proper system operation.
Parts Information
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
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Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5866
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
07-06-04-019D > Jun > 10 > Electrical - Intermittent MIL/DTC P2138/Reduced Power
Wiring Harness: All Technical Service Bulletins Electrical - Intermittent MIL/DTC P2138/Reduced
Power
TECHNICAL
Bulletin No.: 07-06-04-019D
Date: June 28, 2010
Subject: Intermittent Malfunction Indicator Lamp (MIL) Illuminated, DTC P2138 with Reduced
Engine Power (Repair Instrument Panel (IP) to Body Harness Connector)
Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years and warranty information.
Please discard Corporate Bulletin Number 07-06-04-019C (Section 06 - Engine/Propulsion
System)
Condition
- Some customers may comment on an intermittent malfunction indicator lamp (MIL) being
Illuminated with a message or an indicator that displays Reduced Engine Power.
- The technician may observe on a scan tool DTC P2138 - Accelerator Pedal Position (APP)
Sensor 1-2 Correlation set as Current or in History.
Cause
This condition may be caused by water intrusion into the instrument panel (IP) to body harness
connector, which carries the APP sensor signals to the ECM/PCM. This water intrusion results in a
voltage difference between APP Sensor 1 and APP Sensor 2 that exceeds a predetermined value
for more than a calibrated period of time, setting P2138.
Correction
Note Aftermarket equipment can generate DTC P2138 and/or other DTCs.
1. Verify that aftermarket equipment is not electrically connected to any of the APP sensor signal or
low reference circuits or to any other ECM/PCM
5V reference or low reference circuits. Refer to Checking Aftermarket Accessories in SI.
2. Perform the Diagnostic System Check - Vehicle.
‹› If any 5V reference DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. ‹› If any
5V reference DTCs are not set, proceed to Step 3.
3. Locate the IP to body harness connector, which may be located in and around the left hand kick
panel area or inside the IP. Depending on the
vehicle and model year, refer to Wiring Systems or Power and Signal Distribution in SI.
Note Some examples of potential water leaks are: A-pillar seals, sunroof drain lines (if equipped)
and windshield/cowl sealing.
4. Inspect for a water leak in the area. If necessary use a water hose to determine the source of the
leak. Refer to General Information > Water Leaks
in SI.
‹› If a water leak is observed, repair as necessary. Verify the effectiveness of the repair.
5. Inspect the IP to body harness connector terminals for corrosion and debris. Refer to Testing for
Intermittent Conditions and Poor Connections in
SI.
‹› If any corrosion and/or debris is observed, repair as necessary.
6. After completing the repair, verify the proper operation of the system. Depending on the vehicle
and model year, perform the Diagnostic Repair
Verification procedure or refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
07-06-04-019D > Jun > 10 > Electrical - Intermittent MIL/DTC P2138/Reduced Power > Page 5871
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the appropriate labor operation for the source of the
water leak
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: > 06-08-45-004
> May > 06 > Electrical - Instrument Panel & General Wiring Repair
Wiring Harness: All Technical Service Bulletins Electrical - Instrument Panel & General Wiring
Repair
Bulletin No.: 06-08-45-004
Date: May 02, 2006
INFORMATION
Subject: Instrument Panel (I/P), Body and General Wiring Harness Repair
Models: 2007 and Prior GM Cars and Trucks 2003-2007 HUMMER H2 2006-2007 HUMMER H3
Important:
A part restriction has been implemented on all Body and I/P harnesses and is being administered
by the PQC. If a body or I/P harness replacement is required, it can take 12-28 weeks for a
harness to be built and delivered to a dealer. The dealer technician is expected to repair any
harness damage as the first and best choice before replacing a harness.
In an effort to standardize repair practices, General Motors is requiring that all wiring harnesses be
repaired instead of replaced. If there is a question concerning which connector and/or terminal you
are working on, refer to the information in the appropriate Connector End Views in SI. The
Instruction Manual J 38125-620, which is sent with each new update of the J 38125 Terminal
Repair Kit, also has terminal crimping and terminal remove information.
Important:
There are some parts in the J 38125 Terminal Repair Kit (i.e. SIR connector CPAs and heat shrink
tube (used in high heat area pigtail replacement) and some TPAs that are not available from
GMSPO. It is vitally important that each update to the J 38125 Terminal Repair Kit be done as soon
as it arrives at the dealer.
Utilize the Terminal Repair Kit (J 38125) to achieve an effective wiring repair. The Terminal Repair
Kit has been an essential tool for all GM Dealers since 1987. Replacement terminals and tools for
this kit are available through SPX/Kent Moore. Refer to Corporate Bulletin Number 06-08-45-001
for more information.
The Instruction Manual J 38125-620, which is sent with each new update to the J 38125 Terminal
Repair Kit, also has terminal crimping and terminal removal information.
U.S. Dealers Only - Training courses (including Tech Assists, Emerging Issues, Web, IDL and
Hands-on) are available through the GM Training website. Refer to Resources and then Training
Materials for a complete list of available courses.
Canadian Dealers Only - Refer to the Training section of GM infoNet for a complete list of available
courses and a copy of the J 38125 Terminal Repair Kit Instruction Manual.
Wiring repair information is also available in Service Information (SI). The Wiring Repair section
contains information for the following types of wiring repairs:
- Testing for intermittent conditions and poor conditions
- Flat wire repairs
- GMLAN wiring repairs
- High temperature wiring repairs
- Splicing copper wire using splice clips
- Splicing copper wire using splice sleeves
- Splicing twisted or shielded cable
- Splicing inline harness diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: > 06-08-45-004
> May > 06 > Electrical - Instrument Panel & General Wiring Repair > Page 5876
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 5882
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 5883
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 5884
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5889
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
5. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
6. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
7. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 8. Ensure the rivet stud is securely fastened, WITHOUT ANY detectable movement. 9.
Completely wrap the threads of the rivet stud with painters tape or equivalent.
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the ground wire terminal and conductive nut to maintain a secure, stable and
corrosion-free electrical ground.
10. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 11. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 12. Remove the painters tape or equivalent from the rivet
stud threads. 13. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 14. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5890
15. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 16. Install the electrical ground wire terminal to the rivet stud. 17. Select a M6
conductive nut. Refer to the Parts Information section of this bulletin. 18. Install the M6 conductive
nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in).
19. Verify proper system operation.
M6 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M6 weld nut at the electrical ground location is damaged or stripped, a M7 conductive
self-threading bolt may be used to secure the ground
wire terminal.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the weld nut and allow to dry. 3. Remove any loose metal particles from the damaged
or stripped weld nut with a stiff brush. 4. Select a M7 conductive self-threading bolt. Refer to the
Parts Information section of this bulletin 5. Using a small brush, apply Dielectric Lubricant GM P/N
12377900 (Canadian P/N 10953529) to the threads of the M7 conductive self-threading
bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
6. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 7. Install the electrical ground wire terminal to the M7 conductive self-threading bolt.
8. Install the M7 conductive self-threading bolt and:
Tighten Tighten to 9 Nm (80 lb in).
9. Verify proper system operation.
M6 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the electrical ground location is accessible from both sides of the panel, a M6 conductive bolt
and a M6 conductive nut may be used to secure
the electrical ground wire terminal. Refer to the Parts Information section of this bulletin.
2. Select a location adjacent the damaged M6 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 8.5 mm (0.33 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 8.5 mm (0.33 in) hole until bare metal is visible. 6. Select a M6 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M6 conductive bolt to the ground
location.
10. Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M6 conductive nut to the bolt and:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5891
Tighten Tighten to 8 Nm (71 lb in).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is accessible from both sides of the panel, a M8
conductive bolt and a M8 conductive nut may be
used to secure the electrical ground wire terminal. Refer to the Parts Information section of this
bulletin.
2. Select a location adjacent the M8 weld nut having 20 mm (0.79 in) clearance behind the panel
surface and 20 mm (0.79 in) clearance surrounding
the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 10 mm (0.40 in) hole until bare metal is visible. 6. Select a M8 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M8 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M8 conductive bolt to the ground
location.
10. Select a M8 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M8 conductive nut to the bolt and:
Tighten Tighten to 22 Nm (16 lb ft).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is not accessible from both sides of the panel, a M6
conductive rivet stud and a M6 conductive nut
may be used to secure the electrical ground wire terminal.
2. Select a location adjacent the damaged M8 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the M6 conductive rivet stud flange.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5892
5. Remove paint and primer from the area surrounding the 10 mm (0.40 in) until bare metal is
visible.
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
6. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
7. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
8. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 9. Ensure the new rivet stud is securely fastened, WITHOUT ANY detectable movement.
10. Completely wrap the threads of the rivet stud with painters tape or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5893
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the electrical ground wire terminal and conductive nut to maintain a secure, stable
and corrosion-free electrical ground.
11. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 12. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 13. Remove the painters tape or equivalent from the rivet
stud threads. 14. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 15. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
16. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 17. Install the electrical ground wire terminal to the M6 conductive rivet stud. 18.
Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 19. Install the M6
conductive nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in)
20. Verify proper system operation.
Parts Information
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
10-08-45-001B > Oct > 10 > Electrical - Information For Electrical Ground Repair > Page 5894
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: >
07-06-04-019D > Jun > 10 > Electrical - Intermittent MIL/DTC P2138/Reduced Power > Page 5899
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the appropriate labor operation for the source of the
water leak
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Body Control Module: > 06-08-45-004
> May > 06 > Electrical - Instrument Panel & General Wiring Repair > Page 5904
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Diagrams > Body Control Module - C1
Body Control Module: Diagrams Body Control Module - C1
Body Control Module - C1 (Pin 1 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Diagrams > Body Control Module - C1 > Page 5907
Body Control Module - C1 (Pin 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Diagrams > Body Control Module - C1 > Page 5908
Body Control Module: Diagrams Body Control Module - C2
Body Control Module - C2 (Pin 1 To 20)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Diagrams > Body Control Module - C1 > Page 5909
Body Control Module - C2 (Pin 21 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Diagrams > Body Control Module - C1 > Page 5910
Body Control Module: Diagrams Body Control Module - C3
Body Control Module - C3 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Diagrams > Body Control Module - C1 > Page 5911
Body Control Module - C3 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Diagrams > Body Control Module - C1 > Page 5912
Body Control Module: Diagrams Body Control Module - C4
Body Control Module - C4 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Diagrams > Body Control Module - C1 > Page 5913
Body Control Module - C4 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Diagrams > Body Control Module - C1 > Page 5914
Body Control Module: Diagrams
Body Control Module - C1 (Pin 1 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Diagrams > Body Control Module - C1 > Page 5915
Body Control Module - C1 (Pin 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Diagrams > Body Control Module - C1 > Page 5916
Body Control Module - C2 (Pin 1 To 20)
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Body Control Module - C2 (Pin 21 To 25)
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Component Information > Diagrams > Body Control Module - C1 > Page 5918
Body Control Module - C3 (Pin 1 To 15)
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Component Information > Diagrams > Body Control Module - C1 > Page 5919
Body Control Module - C3 (Pin 16 To 25)
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Body Control Module - C4 (Pin 1 To 15)
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Component Information > Diagrams > Body Control Module - C1 > Page 5921
Body Control Module - C4 (Pin 16 To 25)
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Component Information > Diagrams > Body Control Module - C1 > Page 5922
Body Control Module - C5 (Pin 1 To 17)
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Body Control Module - C5 (Pin 18 To 25)
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Body Control Module - C6 (Pin 1 To 18)
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Body Control Module - C6 (Pin 19 To 25)
Body Control Module - C7 (Pin 1 To 28)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Body Control Module >
Component Information > Service and Repair > Body Control Module Replacement
Body Control Module: Service and Repair Body Control Module Replacement
BODY CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: If data is not retrieved from the malfunctioning body control module (BCM),
additional time will be required to program the
replacement BCM.
Retrieve data from the malfunctioning BCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
2. Rotate the ignition switch to the OFF position.
3. Remove the radio bezel. 4. Disconnect the BCM electrical harnesses. 5. Remove the BCM from
the instrument panel (I/P) retainer:
1. Pry the BCM tabs from the locking tabs on the underside of the restraint. 2. Slide the BCM out of
the retainer.
INSTALLATION PROCEDURE
1. Install the BCM. 2. Install the radio bezel. 3. Slide the BCM tabs into the slots in the I/P retainer
until the tabs lock into place. 4. Connect the electrical connectors. 5. Program a new or a
remanufactured BCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
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Body Control Module: Service and Repair Body Control Module (BCM) Programming/RPO
Configuration
BODY CONTROL MODULE (BCM) PROGRAMMING/RPO CONFIGURATION
INTRODUCTION
A new body control module (BCM) must be programmed with the latest operating software and
vehicle calibrations. Ensure that the following conditions exist in order to prepare for BCM
programming:
- The battery is fully charged.
- The ignition switch is in the ON position.
- The data link connector (DLC) is accessible.
- All disconnected modules and devices are connected.
PROGRAMMING THE BCM
IMPORTANT: The vehicle will not start and many other functions may not operate properly if a
replacement BCM is not properly set up. The following procedures must be followed:
1. Programming the BCM 2. Learning the restraints ID
IMPORTANT: After the procedure is completed, the personalization settings of the BCM are set to
default settings. Inform the customer that the personalization must be set again.
LEARNING THE RESTRAINTS ID
Navigate on the scan tool to Body Control Module > Module Setup > Setup SDM Primary Key in
BCM, then follow the instructions on the screen.
IMPORTANT: After programming, perform the following to avoid future misdiagnosis:
1. Turn the ignition OFF for 10 seconds. 2. Connect the scan tool to the data link connector. 3. Turn
the ignition ON, with the engine OFF. 4. Use the scan tool in order to retrieve history DTCs from all
modules. 5. Clear all history DTCs.
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Component Information > Locations
Top Of The Engine
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Component Information > Diagrams > Diagram Information and Instructions
Camshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Camshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 5983
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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Component Information > Diagrams > Diagram Information and Instructions > Page 6016
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Component Information > Diagrams > Diagram Information and Instructions > Page 6024
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Camshaft Position Sensor: Service and Repair
CAMSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the camshaft position (CMP) sensor electrical connector. 2. Remove the CMP
sensor bolt. 3. Remove the CMP sensor. 4. Inspect the CMP sensor O-rings for wear, cracks, or
leakage if the sensor is being reused. Replace the O-rings if damaged.
INSTALLATION PROCEDURE
1. Lubricate the CMP sensor O-rings with clean engine oil.
2. Install the CMP sensor.
3. NOTE: Refer to Fastener Notice.
Install the CMP sensor bolt.
Tighten the bolt to 10 N.m (89 lb in).
4. Connect the CMP sensor electrical connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Coolant Temperature
Sensor/Switch (For Computer) > Component Information > Specifications
Temperature Versus Resistance
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Rear Of The Engine
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Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Engine coolant must be drained below the level of the engine coolant temperature (ECT) sensor.
Refer to Draining and Filling Cooling System
(Static Fill) Draining and Filling Cooling System (GE 47716 Fill).
2. Disconnect the ECT sensor harness connector. 3. Remove the ECT sensor.
INSTALLATION PROCEDURE
1. IMPORTANT: Tap out sensor mounting hole in engine head to remove any thread sealant
residue. Clean any sealant residue from old sensor if the sensor is going to be reused.
If the sensor is being reused, apply thread sealant GM P/N 12345382 (Canadian P/N 10953489) or
equivalent, to sensor threads.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the ECT sensor.
Tighten the engine coolant temperature sensor to 23 N.m (17 lb ft).
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3. Connect the ECT sensor harness connector. Push in the connector until a click is heard, then
pull back to confirm a positive engagement. 4. Fill engine coolant to proper level. Refer to Draining
and Filling Cooling System (Static Fill) Draining and Filling Cooling System (GE 47716
Fill).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Crankshaft Position Sensor >
Component Information > Locations
Rear Of The Engine
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Component Information > Diagrams > Diagram Information and Instructions
Crankshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Crankshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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Component Information > Diagrams > Diagram Information and Instructions > Page 6058
cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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Component Information > Diagrams > Diagram Information and Instructions > Page 6059
1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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Component Information > Diagrams > Diagram Information and Instructions > Page 6060
IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Crank Sensor
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Crankshaft Position Sensor: Testing and Inspection
CRANKSHAFT POSITION SENSOR SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DIAGNOSTIC FAULT INFORMATION
TYPICAL SCAN TOOL DATA
CIRCUIT/SYSTEM DESCRIPTION
The crankshaft position (CKP) sensor circuits consist of an engine control module (ECM) supplied
5-volt reference circuit, low reference circuit and an output signal circuit. The CKP sensor is an
internally magnetic biased digital output integrated circuit sensing device. The sensor detects
magnetic flux changes of the teeth and slots of a 58-tooth reluctor wheel on the crankshaft. Each
tooth on the reluctor wheel is spaced at 60-tooth spacing, with 2 missing teeth for the reference
gap. The CKP sensor produces an ON/OFF DC voltage of varying frequency, with 58 output pulses
per crankshaft revolution. The frequency of the CKP sensor output depends on the velocity of the
crankshaft. The CKP sensor sends a digital signal, which represents an image of the crankshaft
reluctor wheel, to the ECM as each tooth on the wheel rotates past the CKP sensor. The ECM
uses each CKP signal pulse to determine crankshaft speed and decodes the crankshaft reluctor
wheel reference gap to identify crankshaft position. This information is then used to determine the
optimum ignition and injection points of the engine. The ECM also uses CKP sensor output
information to determine the camshaft relative position to the crankshaft, to control camshaft
phasing, and to detect cylinder misfire.
DIAGNOSTIC AIDS
- Inspect the CKP sensor connector and the ECM connector for corrosion.
- With a DTC set, the engine may crank for an extended period of time at start-up.
CIRCUIT/SYSTEM VERIFICATION
If DTC P0641 or P0651 are set diagnose those DTCs first. 1. With the ignition OFF, inspect the
engine wiring harnesses carrying the CKP sensor circuits for the following conditions:
- Close routing of secondary ignition wires
- Close routing of aftermarket electrical equipment
- Close to solenoids, motors, and relays
- Correct any wire harness routing or component placement conditions, if it is determined to be a
possible source of electrical interference.
2. Start the engine. Using the Live Plot function on the scan tool, select the CMP parameter.
Change the minimum spec to 400 RPM, and the
maximum spec to 4,000 RPM. Select the CKP sensor parameter. Change the minimum spec to
600 RPM, and the maximum spec to 3,300 RPM.
3. Observe the scan tool. 4. Quickly accelerate and release the accelerator pedal several time. Do
not exceed 3,200 RPM. The graphed lines on the Live Plot display should
track together across the screen. If the vehicle passes the Circuit/System Verification test, operate the vehicle within the Conditions
for Running the DTC. You may also operate the vehicle within the conditions that are captured in
the Freeze Frame/Failure Records data list.
CIRCUIT/SYSTEM TESTING
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Component Information > Diagrams > Page 6146
IMPORTANT: You must complete the Circuit/System Verification before proceeding with
Circuit/System Testing.
1. Disconnect the CKP sensor connector. 2. Test for less than 1 ohm of resistance between low
reference circuit and ground.
- If greater than the specified value, test the low reference circuit for an open/high resistance. If the
circuit tests normal, replace the ECM.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit and ground.
- If less than the specified range, test the 5-volt reference circuit for an open/high resistance or
short to ground. If the circuit tests normal, replace the ECM.
- If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the
circuit tests normal, replace the ECM.
4. Ignition ON, test for 4.8-5.2 volts between the signal circuit and ground.
- If less than the specified range, test signal circuit for an open/high resistance or short to ground. If
the circuit tests normal, replace the ECM.
- If greater than the specified range, test signal circuit for a short to voltage. If the circuit tests
normal, replace the ECM.
5. Ignition ON, using a jumper wire connected to ground, momentarily touch the CKP sensor signal
circuit repeatedly. The CKP Active Counter
parameter should increment. If the CKP Active Counter parameter does not increment, replace the ECM.
6. Ignition OFF, inspect the CKP sensor for looseness and correct installation 7. Touch the jumper
wire to the CKP sensor signal circuit repeatedly at the connector. The CKP Active Counter
parameter should increment.
- If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.
8. Inspect the engine for the following conditions:
- Engine oil for debris
- Crankshaft reluctor wheel for damage
- The timing chain, tensioner, and sprockets for wear or damage
- If debris is found in the engine oil, inspect the internal engine components to determine the cause.
Repair or replace any worn or damaged components.
COMPONENT TESTING
IMPORTANT: You must complete the Circuit/System Testing before proceeding with Component
Testing.
1. Remove the CKP sensor from the engine and inspect the sensor and the O-ring for damage. 2.
Connect the CKP Sensor connector to the CKP Sensor; turn ON the ignition, with the engine OFF.
3. Observe the CKP Active Counter parameter on the scan tool; pass a steel object by the tip of the
sensor repeatedly. The CKP Active Counter
parameter should increment. -
If the parameter does not increment, replace the CKP sensor.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Crankshaft Position Sensor Replacement for CKP sensor replacement
- Control Module References for ECM replacement, setup, and programming See: Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests and
Procedures See: Testing and Inspection/Programming and Relearning
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Crankshaft Position Sensor >
Component Information > Service and Repair > Crankshaft Position Sensor Replacement
Crankshaft Position Sensor: Service and Repair Crankshaft Position Sensor Replacement
CRANKSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting. 2. Disconnect the crankshaft position (CKP) sensor
electrical connector. 3. Remove the CKP sensor nut (2). 4. Remove the CKP sensor (1) from the
engine. 5. Inspect for wear, cracks, or leakage if the CKP sensor is being reused.
INSTALLATION PROCEDURE
1. Lubricate the O-ring with clean engine oil. Replace the O-rings if damaged.
2. Install the CKP sensor (1) to the block.
3. NOTE: Refer to Fastener Notice.
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Component Information > Service and Repair > Crankshaft Position Sensor Replacement > Page 6149
Install the CKP sensor nut (1).
Tighten the nut to 11 N.m (97 lb in).
4. Connect the CKP sensor electrical connector. 5. Lower the vehicle.
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Component Information > Service and Repair > Crankshaft Position Sensor Replacement > Page 6150
Crankshaft Position Sensor: Service and Repair Crankshaft Position System Variation Learn
CRANKSHAFT POSITION SYSTEM VARIATION LEARN
IMPORTANT: The Crankshaft Position (CKP) system variation learn procedure is also required when the
following service procedures have been performed, regardless of whether DTC P0315 is set: An engine replacement
- A engine control module (ECM) replacement
- A crankshaft balancer replacement
- A crankshaft replacement
- A CKP sensor replacement
- Any engine repairs which disturb the crankshaft to CKP sensor relationship.
- The scan tool monitors certain component signals to determine if all the conditions are met to
continue with the CKP System Variation Learn Procedure. The scan tool only displays the condition
that inhibits the procedure. The scan tool monitors the following components: CKP sensors activity-If there is a CKP sensor condition, refer to the applicable DTC that set.
- Camshaft position (CMP) signal activity-If there is a CMP signal condition, refer to the applicable
DTC that set.
- Engine coolant temperature (ECT)-If the engine coolant temperature is not warm enough, idle the
engine until the engine coolant temperature reaches the correct temperature.
1. Install a scan tool. 2. Monitor the ECM for DTCs with a scan tool. If other DTCs are set, except
DTC P0315, refer to Diagnostic Trouble Code (DTC) List - Vehicle
for the applicable DTC that set. See: Testing and Inspection/Diagnostic Trouble Code Descriptions
3. With a scan tool, select the CKP System Variation Learn Procedure and perform the following:
1. Observe fuel cut-off for applicable engine. 2. Block drive wheels. 3. Set parking brake. 4. DO
NOT apply brake pedal. 5. Cycle ignition from OFF to ON. 6. Apply and hold brake pedal for the
duration of the procedure. 7. Start and idle engine. 8. Turn the air conditioning (A/C) OFF. 9. The
vehicle must remain in Park or Neutral.
10. IMPORTANT:
- The engine should not accelerate beyond the calibrated fuel cut-off RPM value noted in step 3.1.
Release the throttle immediately if the value is exceeded.
- While the learn procedure is in progress, release the throttle immediately when the engine starts
to decelerate. The engine control is returned to the operator and the engine responds to throttle
position after the learn procedure is complete.
Accelerate to wide open throttle (WOT) and release when the fuel cut-off occurs.
4. The scan tool displays Learn Status: Learned this Ignition. If the scan tool indicates that DTC
P0315 ran and passed, the CKP variation learn
procedure is complete. If the scan tool indicates DTC P0315 failed or did not run, refer to DTC
P0315. If any other DTCs set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the
applicable DTC. See: Testing and Inspection/Diagnostic Trouble Code Descriptions
5. Turn OFF the ignition for 30 seconds after the learn procedure is completed successfully in order
to store the CKP system variation values in the
ECM memory.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Data Link Connector >
Component Information > Diagrams
Data Link Connector (DLC) (Pin 1 To 16)
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Data Link Connector >
Component Information > Diagrams > Page 6154
Data Link Connector: Testing and Inspection
DATA LINK REFERENCES
This table identifies which serial data link that a particular module uses for in-vehicle data
transmission. Some modules may use more than one data link to communicate. Some modules
may have multiple communication circuits passing through them without actively communicating on
that data link. This table is used to assist in correcting a communication malfunction. For the
description and operation of these serial data communication circuits refer to Data Link
Communications Description and Operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Electronic Throttle Actuator >
Component Information > Diagrams
Throttle Actuator Control
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Electronic Throttle Actuator >
Component Information > Diagrams > Page 6158
Electronic Throttle Actuator: Description and Operation
THROTTLE ACTUATOR CONTROL (TAC) SYSTEM DESCRIPTION
PURPOSE
The throttle actuator control (TAC) system delivers improved throttle response and greater
reliability and eliminates the need for mechanical cable. The TAC system performs the following
functions: Accelerator pedal position sensing
- Throttle positioning to meet driver and engine demands
- Throttle position sensing
- Internal diagnostics
- Cruise control functions
- Manage TAC electrical power consumption
The TAC system includes the following components: The accelerator pedal position (APP) sensors
- The throttle body assembly
- The engine control module (ECM)
ACCELERATOR PEDAL POSITION (APP) SENSOR
The accelerator pedal contains 2 individual accelerator pedal position (APP) sensors within the
assembly. The APP sensors 1 and 2 are potentiometer type sensors each with 3 circuits: A 5-volt reference circuit
- A low reference circuit
- A signal circuit
The APP sensors are used to determine the pedal angle. The engine control module (ECM)
provides each APP sensor a 5-volt reference circuit and a low reference circuit. The APP sensors
provide the ECM with signal voltage proportional to the pedal movement. The APP sensor 1 signal
voltage at rest position is less than 1 volt and increases to more than 4 volts as the pedal is
actuated. The APP sensor 2 signal voltage at rest position is less than 0.6 volt and increases to
more than 2 volts as the pedal is actuated.
THROTTLE BODY ASSEMBLY
The throttle assembly contains the following components: The throttle blade
- The throttle actuator motor
- The throttle position (TP) sensor 1 and 2
The throttle body functions similar to a conventional throttle body with the following exceptions: An electric motor opens and closes the throttle valve.
- The throttle blade is spring loaded in both directions and the default position is slightly open.
- There are 2 individual TP sensors within the throttle body assembly.
The TP sensors are used to determine the throttle plate angle. The TP sensors provide the engine
control module (ECM) with a signal voltage proportional to throttle plate movement. The TP sensor
1 signal voltage at closed throttle is above 4 volts and decreases as the throttle plate is opened.
The TP sensor 2 signal voltage at closed throttle is below 1 volt and increases as the throttle plate
is opened.
ENGINE CONTROL MODULE
The engine control module (ECM) is the control center for the throttle actuator control (TAC)
system. The ECM determines the drivers intent and then calculates the appropriate throttle
response. The ECM achieves throttle positioning by providing a pulse width modulated voltage to
the TAC motor.
MODES OF OPERATION
Normal Mode During the operation of the throttle actuator control (TAC) system, several modes or
functions are considered normal. The following modes may be entered during normal operation: Minimum pedal value-At key-up, the engine control module (ECM) updates the learned minimum
pedal value.
- Minimum throttle position (TP) values-At key-up, the ECM updates the learned minimum TP
value. In order to learn the minimum TP value, the throttle blade is moved to the closed position.
- Ice break mode-If the throttle is not able to reach a predetermined minimum throttle position, the
ice break mode is entered. During the ice break mode, the ECM commands the maximum pulse
width several times to the throttle actuator motor in the closing direction.
- Battery saver mode-After a predetermined time without engine RPM, the ECM commands the
battery saver mode. During the battery saver mode, the TAC module removes the voltage from the
motor control circuits, which removes the current draw used to maintain the idle position and allows
the throttle to return to the spring loaded default position.
Reduced Engine Power Mode
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Electronic Throttle Actuator >
Component Information > Diagrams > Page 6159
When the ECM detects a condition with the TAC system, the ECM may enter a reduced engine
power mode. Reduced engine power may cause one or more of the following conditions: Acceleration limiting-The ECM will continue to use the accelerator pedal for throttle control,
however, the vehicle acceleration is limited.
- Limited throttle mode-The ECM will continue to use the accelerator pedal for throttle control,
however, the maximum throttle opening is limited.
- Throttle default mode-The ECM will turn OFF the throttle actuator motor and the throttle will return
to the spring loaded default position.
- Forced idle mode-The ECM will perform the following actions: Limit engine speed to idle by positioning the throttle position, or by controlling the fuel and spark if
the throttle is turned OFF
- Ignore the accelerator pedal input
- Engine shutdown mode-The ECM will disable fuel and de-energize the throttle actuator.
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Electronic Throttle Control
Module > Component Information > Locations
Electronic Throttle Control Module: Locations
Air Induction Components
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Module > Component Information > Locations > Page 6163
Front Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Module > Component Information > Locations > Page 6164
Rear Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Engine Control Module >
Component Information > Technical Service Bulletins > Engine Controls - Aftermarket Accessory Usage
Engine Control Module: Technical Service Bulletins Engine Controls - Aftermarket Accessory
Usage
INFORMATION
Bulletin No.: 04-06-04-054B
Date: November 18, 2010
Subject: Info - Non-GM Parts and Accessories (Aftermarket)
Models:
2011 and Prior GM Passenger Cars and Trucks
Supercede: This bulletin is being revised to add model years and update to the new U.S. Fixed
Operation Manager (FOM) and Canada Warranty Manager (WM) names. Please discard Corporate
Bulletin Number 04-06-04-054A (Section 06 - Engine/Propulsion System).
The recent rise and expansion of companies selling non-GM parts and accessories has made it
necessary to issue this reminder to dealers regarding GM's policy on the use and installation of
these aftermarket components.
When a dealer is performing a repair under the New Vehicle Limited Warranty, they are required to
use only genuine GM or GM-approved parts and accessories. This applies to all warranty repairs,
special policy repairs or any repairs paid for by GM. Parts and accessories advertised as being "the
same" as parts manufactured by GM, but not sold through GM, do not qualify for use in warranty
repairs, special policy repairs or any repairs paid for by GM.
During a warranty repair, if a GM original equipment part is not available through GM Customer
Care and Aftersales (GM CC&A;), ACDelco(R) distributors, other GM dealers or approved sources,
the dealer is to obtain comparable, non-GM parts and clearly indicate, in detail, on the repair order
the circumstances surrounding why non-GM parts were used. The dealer must give customers
written notice, prior to the sale or service, that such parts or accessories are not marketed or
warranted by General Motors.
It should also be noted that dealers modifying new vehicles and installing equipment, parts and
accessories obtained from sources not authorized by GM are responsible for complying with the
National Traffic and Motor Vehicle Safety Act. Certain non-approved parts or assemblies, installed
by the dealer or its agent not authorized by GM, may result in a change to the vehicle's design
characteristics and may affect the vehicle's ability to conform to federal law. Dealers must fully
understand that non-GM approved parts may not have been validated, tested or certified for use.
This puts the dealer at risk for potential liability in the event of a part or vehicle failure. If a GM part
failure occurs as the result of the installation or use of a non-GM approved part, the warranty will
not be honored.
A good example of non-authorized modification of vehicles is the result of an ever increasing
supply of aftermarket devices available to the customer, which claim to increase the horsepower
and torque of the Duramax(TM) Diesel Engines. These include the addition of, but are not limited to
one or more of the following modifications:
- Propane injection
- Nitrous oxide injection
- Additional modules (black boxes) that connect to the vehicle wiring systems
- Revised engine calibrations downloaded for the engine control module
- Calibration modules which connect to the vehicle diagnostic connector
- Modification to the engine turbocharger waste gate
Although the installation of these devices, or modification of vehicle components, can increase
engine horsepower and torque, they may also negatively affect the engine emissions, reliability
and/or durability. In addition, other powertrain components, such as transmissions, universal joints,
drive shafts, and front/rear axle components, can be stressed beyond design safety limits by the
installation of these devices.
General Motors does not support or endorse the use of devices or modifications that, when
installed, increase the engine horsepower and torque. It is because of these unknown stresses,
and the potential to alter reliability, durability and emissions performance, that GM has adopted a
policy that prevents any UNAUTHORIZED dealer warranty claim submissions to any remaining
warranty coverage, to the powertrain and driveline components whenever the presence of a
non-GM (aftermarket) calibration is confirmed - even if the non-GM control module calibration is
subsequently removed. Refer to the latest version of Bulletin 09-06-04-026 (V8 Gas Engines) or
06-06-01-007 (Duramax(TM) Diesel Engines) for more information on dealer requirements for
calibration verification.
These same policies apply as they relate to the use of non-GM accessories. Damage or failure
from the use or installation of a non-GM accessory will not be covered under warranty. Failure
resulting from the alteration or modification of the vehicle, including the cutting, welding or
disconnecting of the vehicle's original equipment parts and components will void the warranty.
Additionally, dealers will NOT be reimbursed or compensated by GM in the event of any legal
inquiry at either the local, state or federal level that
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Engine Control Module >
Component Information > Technical Service Bulletins > Engine Controls - Aftermarket Accessory Usage > Page 6169
results from the alteration or modification of a vehicle using non-GM approved parts or accessories.
Dealers should be especially cautious of accessory companies that claim the installation of their
product will not void the factory warranty. Many times these companies have even given direction
on how to quickly disassemble the accessory in an attempt to preclude the manufacturer from
finding out that is has been installed.
Any suspect repairs should be reviewed by the Fixed Operations Manager (FOM), and in Canada
by the Warranty Manager (WM) for appropriate repair direction. If it is decided that a goodwill repair
is to be made on the vehicle, even with the installation of such non-GM approved components, the
customer is to be made aware of General Motors position on this issue and is to sign the
appropriate goodwill documentation required by General Motors.
It is imperative for dealers to understand that by installing such devices, they are jeopardizing not
only the warranty coverage, but also the performance and reliability of the customer's vehicle.
Disclaimer
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Component Information > Technical Service Bulletins > Engine Controls - Aftermarket Accessory Usage > Page 6170
Engine Control Module: Technical Service Bulletins Engine/Transmission - Aftermarket Calibrations
INFORMATION
Bulletin No.: 09-06-04-026C
Date: August 13, 2010
Subject: Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V8 Gas
Engines Using Tech 2(R) or Global Diagnostic System (GDS)
Models:
2006-2011 GM Passenger Cars and Light Duty Trucks (Excluding Saab 9-7X) 2006-2009
HUMMER H2 2006-2010 HUMMER H3 Equipped with V8 Gas Powered Engines Only
Attention:
This bulletin applies to V8 gas powered engines ONLY. For Duramax(TM) diesel powered engines,
refer to the latest version of Corporate Bulletin Number 08-06-04-006G.
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 09-06-04-026A (Section 06 - Engine/Propulsion System).
General Motors is identifying an increasing number of engine, transmission and catalytic converter
part failures that are the result of non-GM (aftermarket) engine and transmission control
calibrations being used.
When alteration to the GM-released engine or transmission control calibrations occurs, it subjects
powertrain and driveline components (engine , transmission, transfer case, driveshaft and rear
axle) to stresses that were not tested by General Motors. It is because of these unknown stresses,
and the potential to alter reliability, durability and emissions performance, that GM has adopted a
policy that prevents any UNAUTHORIZED dealer warranty claim submissions to any remaining
warranty coverage, to the powertrain and driveline components whenever the presence of a
non-GM (aftermarket) calibration is confirmed - even if the non-GM control module calibration is
subsequently removed.
Warranty coverage is based on the equipment and calibrations that were released on the vehicle at
time of sale, or subsequently updated by GM. That's because GM testing and validation matches
the calibration to a host of criteria that is essential to assure reliability, durability and emissions
performance over the life of the warranty coverage and beyond. Stresses resulting from
calibrations different from those tested and released by GM can damage or weaken components,
leading to poor performance and or shortened life.
Additionally, non-GM (aftermarket) issued engine control modifications often do not meet the same
emissions performance standards as GM issued calibrations. Depending on state statutes,
individuals who install engine control module calibrations that put the vehicle outside the
parameters of emissions certification standards may be subject to fines and/or penalties.
This bulletin outlines a procedure to identify the presence of non-GM (aftermarket) calibrations. GM
recommends performing this check whenever a hard part failure is seen on internal engine or
transmission components, or before an engine assembly or transmission assembly is being
replaced under warranty. It is also recommended that the engine calibration verification procedure
be performed whenever diagnostics indicate that catalytic converter replacement is indicated.
The PQC has a process to confirm the ECM/PCM calibration is GM issued. The PQC will require a
picture of the engine calibration verification screen, as outlined in this bulletin, before authorizing
any V8 gas powered engine replacement.
If a non-GM calibration is found and verification has taken place through GM, the remaining
powertrain and driveline warranty will be blocked and notated in GMVIS and the dealership will be
notified. This block prevents any UNAUTHORIZED warranty claim submission.
1. Connect the Tech 2(R) to the vehicle. 2. Go to: Diagnostics and build the vehicle. 3. Select:
Powertrain. 4. Select: Engine. 5. *Select: Engine Control Module or PCM. 6. *Select: Module ID
Information or I/M Information System if the Module ID Information selection is not available. 7. *If
"I/M information System" was selected, it may be necessary to select "Vehicle Information" in order
to display the calibration information.
‹› If the CVN information is displayed as "N/A", it will be necessary to contact the TCSC to obtain
the CVN information.
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Component Information > Technical Service Bulletins > Engine Controls - Aftermarket Accessory Usage > Page 6171
8. Take a CLEAR digital picture of the Tech 2(R) Vehicle Information screen showing the engine
Calibration IDs and Verification Numbers as
shown above. Retain the printout information and the Tech 2(R) screen photograph with the repair
order.
Note All pictures must be sent as a.jpg file.
9. E-mail a copy of the picture to
[email protected]. In the subject line of the e-mail include the
phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
10. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
11. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Tech 2(R) Displaying All Zeroes for the Verification Numbers on the Calibration ID and Verification
Number Screen
If the Tech 2(R) that you are using displays all zeroes for the Verification Numbers as shown, then
perform the following steps:
1. Update the Tech 2(R) with the latest software from TIS2WEB. 2. Turn OFF the ignition for 90
seconds. 3. Connect the Tech 2(R) to the vehicle. 4. Turn ON the ignition, and build the vehicle.
Observe the Tech 2(R) Calibration ID and Verification Number screen for proper operation.
‹› If the Tech 2(R) screen still does not display properly, then turn OFF the ignition for 90 seconds
again. Turn ON the ignition and observe the
same screen for proper operation.
Retrieving Calibrations From a Global A Vehicle
This information applies to the 2010 Camaro and is typical of the procedure that will be used on
Global A vehicles.
1. Turn OFF the ignition.
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Component Information > Technical Service Bulletins > Engine Controls - Aftermarket Accessory Usage > Page 6172
2. Connect the MDI to the Data Link Connector (DLC) of the vehicle.
Note Use the USB port to make the following MDI connection:
3. Connect the MDI to a PC or laptop that has been downloaded with the GDS application from
TIS2WEB.
Note At least one Diagnostic Package must be installed on the PC to perform diagnostics. If GDS
was just installed, select: Add New Diagnostic Package and then select: a Diagnostic Package to
download.
4. Click: On the GDS icon on the PC. 5. The Login Page will appear. 6. Select: A User. 7. The ID
Screen will appear. 8. Select: The serial number of the MDI being used. 9. Select: Connect.
10. Verify that the system status is ready by observing for a flashing PC light icon on the MDI. 11.
Select: Make, Model and Model Year, in order to build the vehicle. 12. Click: Upload VIN, to allow
the VIN to be reported to the PC. 13. At: The Verification step, turn ON the ignition, with the engine
OFF. 14. Select: Next Action. 15. The Home Page will appear. 16. Select: Next. 17. The Diagnostic
Screen will appear.
Note Due to vehicle build, software and RPO variations, GDS may ask for additional information in
Step 18.
18. Select: Engine ID, if prompted. 19. Select: Module Diagnostics. 20. Select: ECM. 21. Select: ID
Information. 22. The Diagnostics page will appear.
Typical View of GDS Calibration History Screen
Note GDS is capable of displaying up to 10 Calibration History events.
23. Select: Calibration History from the drop down menu in order to display the following items on
the screen:
- Calibration History Buffer
- Number of Calibration History Events Stored
- Calibration Part Number History
- Calibration Verification Number History
24. Select: Screenshot. 25. Name and save the file in an appropriate folder. 26. Select : Print, and
retain a copy of the screenshot with the repair order.
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Engine Control Module >
Component Information > Technical Service Bulletins > Engine Controls - Aftermarket Accessory Usage > Page 6173
Note All pictures must be sent as a.jpg file.
27. E-mail a copy of the screenshot to
[email protected]. In the subject line of the e-mail
include the phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
28. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
29. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Warranty Information
- The Dealership Service Management must be involved in any situation that would justify the use
of labor operation Z1111.
- Notify the Fixed Operations Manager (FOM) (Warranty Manager (WM) in Canada) of the
situation.
- All claims will have to be routed to the FOM (WM in Canada) for approval.
- Please refer to Corporate Bulletin Number 09-00-89-016, Labor Operation Z1111 - Suspected
Tampering or Vehicle Modifications for important information.
For vehicles repaired under warranty, use the table.
Disclaimer
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Engine Control Module >
Component Information > Diagrams > Diagram Information and Instructions
Engine Control Module: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Engine Control Module: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Component Information > Diagrams > Diagram Information and Instructions > Page 6275
Engine Control Module: Connector Views
Electronic Control Module (ECM) - C1 (Pin 1 To 24)
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Electronic Control Module (ECM) - C1 (Pin 27 To 73)
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Component Information > Diagrams > Diagram Information and Instructions > Page 6277
Electronic Control Module (ECM) - C2 (Pin 2 To 29)
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Component Information > Diagrams > Diagram Information and Instructions > Page 6278
Electronic Control Module (ECM) - C2 (Pin 30 To 80)
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Component Information > Diagrams > Diagram Information and Instructions > Page 6279
Electronic Control Module (ECM) C1 (Pin 1 To 27)
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Component Information > Diagrams > Diagram Information and Instructions > Page 6280
Electronic Control Module (ECM) C1 (Pin 28 To 73)
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Component Information > Diagrams > Diagram Information and Instructions > Page 6281
Electronic Control Module (ECM) C2 (Pin 2 To 29)
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Component Information > Diagrams > Diagram Information and Instructions > Page 6282
Electronic Control Module (ECM) C2 (Pin 30 To 80)
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Engine Control Module: Description and Operation
ENGINE CONTROL MODULE DESCRIPTION
The engine control module (ECM) interacts with many emission related components and systems,
and monitors the emission related components and systems for deterioration. OBD II diagnostics
monitor the system performance and a diagnostic trouble code (DTC) sets if the system
performance degrades.The malfunction indicator lamp (MIL) operation and the DTC storage are
dictated by the DTC type. A DTC is ranked as a Type A or Type B if the DTC is emissions related.
Type C is a non-emissions related DTC.The ECM is in the engine compartment. The ECM is the
control center of the engine controls system. The ECM controls the following components:
- The fuel injection system
- The ignition system
- The emission control systems
- The on-board diagnostics
- The A/C and fan systems
- The throttle actuation control (TAC) system
The ECM constantly monitors the information from various sensors and other inputs, and controls
the systems that affect the vehicle performance and the emissions. The ECM also performs
diagnostic tests on various parts of the system. The ECM can recognize operational problems and
alert the driver via the MIL. When the ECM detects a malfunction, the ECM stores a DTC. The
condition area is identified by the particular DTC that is set. This aids the technician in making
repairs.
ECM Function
The engine control module (ECM) can supply 5 volts or 12 volts to the various sensors or switches.
This is done through pull-up resistors to the regulated power supplies within the ECM. In some
cases, even an ordinary shop voltmeter will not give an accurate reading because the resistance is
too low. Therefore, a DMM with at least 10 megaohms input impedance is required in order to
ensure accurate voltage readings.The ECM controls the output circuits by controlling the ground or
the power feed circuit through the transistors or a device called an output driver module.
EEPROM
The electronically erasable programmable read only memory (EEPROM) is a permanent memory
that is physically part of the engine control module (ECM). The EEPROM contains program and
calibration information that the ECM needs in order to control the powertrain operation.Special
equipment, as well as the correct program and calibration for the vehicle, are required in order to
reprogram the ECM.
Data Link Connector (DLC)
The data link connector (DLC) is a 16-pin connector that provides the technician a means of
accessing serial data for aid in the diagnosis. This connector allows the technician to use a scan
tool in order to monitor the various serial data parameters, and display the DTC information. The
DLC is located inside of the drivers compartment, underneath the dash.
Malfunction Indicator Lamp (MIL)
The malfunction indicator lamp (MIL) is inside of the instrument panel cluster (IPC). The MIL is
controlled by the engine control module (ECM) and illuminates when the ECM detects a condition
that affects the vehicle emissions.
ECM Service Precautions
The engine control module (ECM), by design, can withstand the normal current draws that are
associated with the vehicle operations. However, care must be used in order to avoid overloading
any of these circuits. When testing for opens or shorts, do not ground or apply voltage to any of the
ECM circuits unless the diagnostic procedure instructs you to do so. These circuits should only be
tested with a DMM.
Emissions Diagnosis For State I/M Programs
This OBD II equipped vehicle is designed to diagnose any conditions that could lead to excessive
levels of the following emissions:
- Hydrocarbons (HC)
- Carbon monoxide (CO)
- Oxides of nitrogen (NOx)
- Evaporative emission (EVAP) system losses
Should this vehicles on-board diagnostic system (ECM) detect a condition that could result in
excessive emissions, the ECM turns ON the malfunction indicator lamp (MIL) and stores a DTC
that is associated with the condition.
Aftermarket (Add-On) Electrical And Vacuum Equipment
NOTE:
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- Do not attach add-on vacuum operated equipment to this vehicle. The use of add-on vacuum
equipment may result in damage to vehicle components or systems.
- Connect any add-on electrically operated equipment to the vehicle's electrical system at the
battery (power and ground) in order to prevent damage to the vehicle. Aftermarket, add-on,
electrical and vacuum equipment is defined as any equipment installed on a vehicle after leaving
the factory that connects to the vehicles electrical or vacuum systems. No allowances have been
made in the vehicle design for this type of equipment. Add-on electrical equipment, even when
installed to these strict guidelines, may still cause the powertrain system to malfunction. This may
also include equipment not connected to the vehicle electrical system, such as portable telephones
and radios. Therefore, the first step in diagnosing any powertrain condition is to eliminate all of the
aftermarket electrical equipment from the vehicle. After this is done, if the problem still exists, the
problem may be diagnosed in the normal manner.
Electrostatic Discharge (ESD) Damage
IMPORTANT: In order to prevent possible electrostatic discharge damage to the engine control
module (ECM), DO NOT touch the connector pins on the ECM. The electronic components that are
used in the control systems are often designed to carry very low voltage. The electronic
components are susceptible to damage caused by electrostatic discharge. Less than 100 volts of
static electricity can cause damage to some electronic components. There are several ways for a
person to become statically charged. The most common methods of charging are by friction and by
induction. An example of charging by friction is a person sliding across a car seat.Charging by
induction occurs when a person with well insulated shoes stands near a highly charged object and
momentarily touches ground. Charges of the same polarity are drained off leaving the person
highly charged with the opposite polarity. Static charges can cause damage, therefore, it is
important to use care when handling and testing electronic components.
Emissions Control Information Label
The underhood Vehicle Emissions Control Information Label contains important emission
specifications and setting procedures. In the upper left corner is the exhaust emission information.
This identifies the year, the manufacturing division of the engine, the displacement of the engine in
liters, the class of the vehicle, and type of fuel metering system. There is also an illustrated
emission components and vacuum hose schematic. This label is located in the engine
compartment of every General Motors vehicle. If the label has been removed, it can be ordered
from GM service parts operations (GMSPO).
Underhood Inspection
IMPORTANT: This inspection is very important and must be done carefully and thoroughly.
Perform a careful underhood inspection when performing any diagnostic procedure or diagnosing
the cause of an emission test failure. This can often lead to repairing a condition without further
steps. Use the following guidelines when performing an inspection:
- Inspect all of the vacuum hoses for correct routing, pinches, cuts, or disconnects.
- Inspect any hoses that are difficult to see.
- Inspect all of the wires in the engine compartment for the following conditions: Burned or chafed spots
- Pinched wires
- Contact with sharp edges
- Contact with hot exhaust manifolds
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Engine Control Module: Service and Repair
ENGINE CONTROL MODULE REPLACEMENT
NOTE:
- Turn the ignition OFF when installing or removing the control module connectors and
disconnecting or reconnecting the power to the control module (battery cable, powertrain control
module (PCM)/engine control module (ECM)/transaxle control module (TCM) pigtail, control
module fuse, jumper cables, etc.) in order to prevent internal control module damage.
- Control module damage may result when the metal case contacts battery voltage. DO NOT
contact the control module metal case with battery voltage when servicing a control module, using
battery booster cables, or when charging the vehicle battery.
- In order to prevent any possible electrostatic discharge damage to the control module, do no
touch the connector pins or the soldered components on the circuit board.
- Remove any debris from around the control module connector surfaces before servicing the
control module. Inspect the control module connector gaskets when diagnosing or replacing the
control module. Ensure that the gaskets are installed correctly. The gaskets prevent contaminant
intrusion into the control module.
- The replacement control module must be programmed.
IMPORTANT:
- It is necessary to record the remaining engine oil life. If the replacement module is not programed
with the remaining engine oil life, the engine oil life will default to 100 percent. If the replacement
module is not programmed with the remaining engine oil life, the engine oil will need to be changed
at 5000 km (3,000 mi) from the last engine oil change.
- It is necessary to record the remaining automatic transmission fluid life. If the replacement module
is not programed with the remaining automatic transmission fluid life, the automatic transmission
fluid life will default to 100 percent. If the replacement module is not programmed with the
remaining automatic transmission fluid life, the automatic transmission fluid will need to be changed
at 83000 km (50,000 mi) from the last automatic transmission fluid change.
Removal Procedure
1. Using a scan tool, retrieve the percentage of remaining engine oil and the remaining automatic
transmission fluid life. Record the remaining engine
oil and the remaining automatic transmission fluid life.
2. Slide the engine control module (ECM) retainer rearward, disengaging the retainer from the
battery shield. 3. Remove the ECM retainer from the top of the battery shield.
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4. Remove the ECM from the retainer. 5. Place the ECM on the battery shield.
6. Disconnect the negative battery cable. 7. Disconnect the engine wiring harness electrical
connectors (2) from the ECM.
Installation Procedure
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1. Connect the engine wiring harness electrical connectors (2) to the ECM. 2. Place the ECM on
the battery shield.
3. Install the ECM to the retainer.
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4. Position the ECM and retainer to the top of the battery shield. 5. Slide the ECM retainer
rearward, engaging the retainer to the battery shield. 6. Connect the negative battery cable. 7.
Reprogram the PCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Fuel Level Sensor >
Component Information > Locations
Fuel Tank Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Fuel Level Sensor >
Component Information > Service and Repair > Fuel Level Sensor Replacement - Primary
Fuel Level Sensor: Service and Repair Fuel Level Sensor Replacement - Primary
FUEL LEVEL SENSOR REPLACEMENT - PRIMARY
REMOVAL PROCEDURE
1. IMPORTANT: NEW fuel tank module seals are necessary each time the fuel tank module is
serviced. Obtain NEW seals for both the
primary and secondary modules prior to beginning this service procedure.
IMPORTANT: There are 2 fuel level sender unit and float assemblies in the fuel tank. There is 1
located on each fuel pump module. The fuel level sender unit and float is NOT the same for each of
the fuel pump modules.
Remove the fuel tank.
2. Remove the fuel pump module. 3. Disconnect the fuel level sender unit and float electrical
connector from the underside of the top of the pump module. 4. Release the retaining tabs (1, 2)
and remove the level sensor by sliding up.
INSTALLATION PROCEDURE
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1. Install the fuel level sender unit and float onto the fuel pump module. Make sure that the sender
cap snaps into place (1, 2). 2. Connect the fuel level sender unit and float electrical connector. 3.
Install the fuel pump module into the fuel tank. 4. Install the fuel tank.
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Fuel Level Sensor: Service and Repair Fuel Level Sensor Replacement - Secondary
FUEL LEVEL SENSOR REPLACEMENT - SECONDARY
REMOVAL PROCEDURE
1. IMPORTANT: A NEW fuel tank module seal is necessary each time the fuel tank module is
serviced. Obtain a NEW seal prior to
beginning this service procedure.
IMPORTANT: There are 2 fuel level sender unit and float assemblies in the fuel tank. There is 1
located on each fuel pump module. The fuel level sender unit and float is NOT the same for each of
the fuel pump modules.
Remove the fuel tank. 2. Remove the fuel pump module. 3. Disconnect the fuel level sender unit
and the float electrical connector. 4. Release the retaining tabs and remove the level sensor by
sliding up.
INSTALLATION PROCEDURE
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1. Install the fuel level sender unit and float onto the fuel pump module. Make sure that the sender
cap snaps into place. 2. Connect the fuel level sender unit and the float electrical connector. 3.
Install the fuel pump module into the fuel tank. 4. Install the fuel tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Fuel Tank Pressure Sensor
> Component Information > Service and Repair
Fuel Tank Pressure Sensor: Service and Repair
FUEL TANK PRESSURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the fuel tank
2. Disconnect the fuel pump module harness electrical connector from the fuel tank pressure
sensor.
3. Position 2 flat-bladed screwdrivers, one on each side of the sensor, near the vacuum port. 4.
Carefully use the screwdrivers to lift and release the sensor from the fuel pump module.
INSTALLATION PROCEDURE
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> Component Information > Service and Repair > Page 6300
1. Install the fuel tank pressure sensor to the fuel pump module assembly. Ensure that the sensor
grommet is fully seated to the pump module.
2. Connect the pump module electrical connector to the fuel tank pressure sensor. 3. Install the fuel
tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Information Bus >
Component Information > Locations
Information Bus: Locations
Behind The I/P Cluster
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Rear Of The Roof
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Information Bus >
Component Information > Diagrams > Diagram Information and Instructions
Information Bus: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Information Bus: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Service Precautions > Technician Safety Information
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Information Bus: Description and Operation
DATA LINK COMMUNICATIONS DESCRIPTION AND OPERATION
CIRCUIT DESCRIPTION
The communication among control modules is performed primarily through the GMLAN high speed
serial data circuit and the GMLAN low speed serial data circuits. The modules that need real time
communication are attached to the high speed GMLAN network. The body control module (BCM) is
the serial data gateway between the networks. The purpose of the gateway is to translate serial
data messages between the GMLAN high speed buss and the GMLAN low speed buss. The
Controller Area Network (CAN) is another serial data communication network used on this vehicle
which is dedicated to the Electronic Brake Control Module (EBCM) subsystem for stabilization.
Below are more detailed descriptions of the individual networks. The gateway will interact with each
network according to that network's transmission protocol. Refer to Body Control System
Description and Operation for more information about the gateway.
GMLAN HIGH SPEED CIRCUIT DESCRIPTION
The data link connector (DLC) allows a scan tool to communicate with the high speed GMLAN
serial data circuit. The serial data is transmitted on two twisted wires that allow speed up to 500
Kb/s. The twisted pair is terminated with two 120 ohms resistors, one is internal to the engine
control module (ECM) and the other is after the BCM in either the AWD module or a separate
resistor connector assembly. The resistors are used to reduce noise on the High Speed GMLAN
buss during normal vehicle operation. The high speed GMLAN is a differential bus. The high speed
GMLAN serial data bus (+) and high speed GMLAN serial data (-) are driven to opposite extremes
from a rest or idle level. The idle level, which is approximately 2.5 volts, is considered recessive
transmitted data and is interpreted as a logic 1. Driving the lines to their extremes, adds one volt to
the high speed GMLAN serial data bus (+) and subtracts one volt from the high speed GMLAN
serial data bus (-) wire. This dominant state is interpreted as a logic 0. GMLAN network
management supports selective start up and is based on virtual networks. A virtual network is a
collection of signals started in response to a vehicle event. The starting of a virtual network signifies
that a particular aspect of the vehicles functionality has been requested. A virtual network is
supported by virtual devices, which represents a collection of signals owned by a single physical
device. So, any physical device can have one or more virtual devices. The signal supervision is the
process of determining whether an expected signal is being received or not. Failsofting is the ability
to substitute a signal with a default value or a default algorithm, in the absence of a valid signal.
Some messages are also interpreted as a heartbeat of a virtual device. If such a signal is lost, the
application will set a no communication code against the respective virtual device. This code is
mapped on the Tech 2 screen as a code against the physical device.
NOTE: a loss of serial data DTC does not represent a failure of the module that the code is set in.
GMLAN LOW SPEED CIRCUIT DESCRIPTION
The data link connector (DLC) allows a scan tool to communicate with the low speed GMLAN serial
data circuit. The serial data is transmitted over a single wire to the appropriate control modules.
The transmission speed for GMLAN low speed is up to 83.33 Kb/s. Under normal vehicle operating
conditions, the speed of the buss is 33.33 Kb/s. This protocol produces a simple pulse train sent
out over the GMLAN low speed serial data bus. When a module pulls the buss high, 5 volts, this
creates a dominant logic state or 0 on the buss. When the buss is pulled low, 0 volts, it is translated
as a recessive logic state or 1. To wake the control modules connected to the GMLAN low speed
serial data buss, a voltage wake up pulse is sent out over the buss, the voltage level of the pules is
+10 volts. Modules connected to the GMLAN low speed buss can be part of a virtual network as
described in the previous paragraph. The modules on the GMLAN low speed serial data buss are
connected to the buss in a parallel configuration.
CONTROLLER AREA NETWORK (CAN) DESCRIPTION
The EBCM communicates with the yaw rate sensor and the steering wheel angle sensor
exclusively, when equipped. This serial data system does not communiate with the scan tool
however; there are loss of communication DTCs for this system which set in the EBCM. The yaw
rate sensor and the steering wheel angle sensors are in effect modules, exchanging essential
information with the EBCM. For more information about these sensors refer to ABS Description and
Operation.
DATA LINK CONNECTOR (DLC)
The data link connector (DLC) is a standardized 16-cavity connector. Connector design and
location is dictated by an industry wide standard, and is required to provide the following: Pin 1 GMLAN low speed communications terminal
- Pin 4 Scan tool power ground terminal
- Pin 5 Common signal ground terminal
- Pin 6 High speed GMLAN serial data bus (+) terminal
- Pin 7
- Pin 14 High speed GMLAN serial data bus (-) terminal
- Pin 16 Scan tool power, battery positive voltage terminal
SERIAL DATA REFERENCE
The scan tool communicates over the various busses on the vehicle. When a scan tool is installed
on a vehicle, the scan tool will try to communicate with every module that could be optioned into
the vehicle. If an option is not installed on the vehicle, the scan tool will display No Comm for that
options control module. In order to avert misdiagnoses of No Communication with a specific
module, refer to Data Link References for a list of modules, the busses they communicate with, and
the RPO codes for a specific module.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Information Bus >
Component Information > Testing and Inspection > Initial Inspection and Diagnostic Overview
Information Bus: Initial Inspection and Diagnostic Overview
DIAGNOSTIC STARTING POINT - DATA COMMUNICATIONS
Begin the system diagnosis with Diagnostic System Check - Vehicle. The Diagnostic System
Check - Vehicle will provide the following information:
- The identification of the control modules which are not communicating.
- The identification of any stored diagnostic trouble codes (DTCs) and their status. See: Testing
and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check - Vehicle
The use of the Diagnostic System Check - Vehicle will identify the correct procedures to begin
vehicle diagnosis. These must be performed before system DTC or symptom diagnosis.
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Information Bus: Symptom Related Diagnostic Procedures
Symptoms - Data Communications
SYMPTOMS - DATA COMMUNICATIONS
IMPORTANT: The following steps must be completed before using the symptom tables.
1. Perform the Diagnostic System Check - Vehicle before using the symptom tables in order to
verify that all of the following are true:
- There are no DTCs set.
- The control modules can communicate via the serial data links See: Testing and Inspection/Initial
Inspection and Diagnostic Overview/Diagnostic System Check - Vehicle.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to
Data Link Communications Description and
Operation.
Visual/Physical Inspection Inspect for aftermarket devices which could affect the operation of the systems.
- Inspect the easily accessible or visible system components for obvious damage or conditions
which could cause the symptom.
Intermittent Faulty electrical connections or wiring may be the cause of intermittent conditions.
Refer to Testing for Intermittent Conditions and Poor Connections. See: Testing and
Inspection/Component Tests and General Diagnostics
Symptom List Refer to a symptom diagnostic procedure from the following list in order to diagnose
the symptom: Scan Tool Does Not Power Up
- Scan Tool Does Not Communicate with High Speed GMLAN Device
- Scan Tool Does Not Communicate with Low Speed GMLAN Device
Scan Tool Does Not Communicate with High Speed GMLAN Device
SCAN TOOL DOES NOT COMMUNICATE WITH HIGH SPEED GMLAN DEVICE
DIAGNOSTIC FAULT INFORMATION
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle.
CIRCUIT/SYSTEM DESCRIPTION
Modules connected to the high speed GMLAN serial data circuits monitor for serial data
communications during normal vehicle operation. Operating information and commands are
exchanged among the modules when the ignition switch is in any position other than OFF. The
high speed GMLAN serial data circuits must be operational for the vehicle to start due to body
control module (BCM) and engine control module (ECM)/powertrain control module (PCM)
communications. The theft deterrent module and ECM/PCM exchange information using the BCM
as the gateway module allowing communication between the high and low speed serial data
busses. The low speed GMLAN serial data circuit must also be operational for vehicle starting.
DIAGNOSTIC AIDS
- Use the Data Link References to identify the high speed GMLAN serial data modules.
- This test is used for a total high speed GMLAN communication failure. If only 1 module is not
communicating and sets no DTC, ensure that the
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vehicle is equipped with the module, then use DTC U0100-U0299 for diagnostics.
- An open in the DLC ground circuit terminal 5 will allow the scan tool to operate to set up the
vehicle on the tool and then not communicate with the vehicle. When the scan tool is to the point of
communicating with the vehicle, a message on the scan tool will indicate "no CANdi module
detected" and will not communicate.
- The engine will not start when there is a total malfunction of the high speed GMLAN serial data
bus.The following conditions may cause a total loss of high speed GMLAN data communication: A short between high speed GMLAN (+) and high speed GMLAN (-) circuits
- Any of the high speed GMLAN serial data circuits shorted to ground or voltage
- A module internal malfunction that causes a short to voltage or ground on the high speed GMLAN
circuits
- Use the DMM MIN/MAX function to capture/locate intermittent conditions.
CIRCUIT/SYSTEM TESTING
1. Test for less than 1 ohm of resistance between the DLC ground circuit terminal 5 and ground.
- If greater than 1 ohm, test the ground circuit for open/high resistance.
2. Ignition OFF, disconnect the harness connector of the BCM. 3. Ignition ON, test for battery
voltage between each voltage input circuit of the BCM and ground.
- If less than battery voltage, test each voltage output circuit of the BCM for a short to ground, and
each voltage input circuit of the BCM for a short to ground or and open/high resistance. If the
circuits test normal, replace the faulty module.
4. Test for less than 1 ohm of resistance between each ground circuit of the BCM and ground.
- If greater than 1 ohm, repair the ground circuit for an open/high resistance.
5. Attempt to communicate with the electronic brake control module (EBCM). Communication
should not be available.
- If communication is established, test or replace the resistor.
6. Ignition OFF, disconnect the harness connector of the suspension control module. 7. Attempt to
communicate with the EBCM. Communication should not be available.
- If communication is established, test the serial data circuits for a short between them, short to
ground or a short to voltage between the suspension control module and the terminator resistor. If
the circuits test normal, replace the suspension control module.
8. Ignition OFF, disconnect the harness connector of the distance sensing cruise control module. 9.
Attempt to communicate with the EBCM. Communication should not be available.
- If communication is established, replace the cruise control module.
10. Ignition OFF, disconnect the harness connector of the vehicle communication interface module
(VCIM). 11. Attempt to communicate with the EBCM. Communication should not be available.
- If communication is established, test the serial data circuits for a short between them, short to
ground or a short to voltage between the between the VCIM and the suspension control module. If
the circuits test normal, replace the VCIM.
12. Ignition OFF, disconnect BCM harness connector C3. 13. Test for infinite resistance between
the serial data circuits of BCM harness connector C3 terminal 8 and ground and between BCM
harness
connector C3 terminal 9 and ground. If less than infinite, test the circuit for a short to ground.
14. Ignition OFF, disconnect the harness connector of the ECM. Connect the harness connector
C3 of the BCM. 15. Attempt to communicate with the EBCM. Communication should not be
available.
- If communication is established, replace the ECM.
16. Ignition OFF, disconnect the harness connector of the transmission control module (TCM). 17.
Attempt to communicate with the EBCM. Communication should not be available.
- If communication is established, test the serial data circuits for a short between them, short to
ground or a short to voltage between the TCM and the ECM. If the circuits test normal, replace the
TCM.
18. Ignition OFF, connect the harness connector of the suspension control module. Disconnect the
harness connector of the EBCM. 19. Attempt to communicate with the suspension control module.
Communication should not be available.
- If communication is established, test the serial data circuits for a short between them, short to
ground or a short to voltage between the EBCM and the TCM. If the circuits test normal, replace
the EBCM.
20. Ignition OFF, disconnect the harness connector C3 of the BCM. 21. Test for less than 1 volt
between the high speed GMLAN serial data circuits of the DLC and ground.
- If greater than 1 volt, test the serial data circuit for a short to voltage.
22. Test for infinite resistance between the high speed GMLAN serial data circuit of the DLC and
ground.
- If less than infinite resistance, test the serial data circuit for a short to ground.
23. Test for infinite resistance between the high speed GMLAN serial data (+) and (-) circuits of the
DLC.
- If less than infinite resistance, test the serial data circuits for a short between them.
24. If the circuits test normal, replace the BCM.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the repair. See: Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests and
Procedures GMLAN Wiring Repairs for module replacement, setup, and programming.
Scan Tool Does Not Communicate with Low Speed GMLAN Device
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SCAN TOOL DOES NOT COMMUNICATE WITH LOW SPEED GMLAN DEVICE
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
- Strategy Based Diagnosis
- Diagnostic Procedure Instructions See: Testing and Inspection/Initial Inspection and Diagnostic
Overview/Diagnostic System Check - Vehicle
DIAGNOSTIC FAULT INFORMATION
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle.
CIRCUIT/SYSTEM DESCRIPTION
Modules connected to the low speed GMLAN serial data circuit monitor for serial data
communications during normal vehicle operation. Operating information and commands are
exchanged among the modules when the ignition switch is in any position other than OFF. The low
speed GMLAN serial data circuit must be operational for the vehicle to start so the vehicle theft
deterrent (VTD) module and body control module (BCM) can communicate. The low speed GMLAN
serial data circuit uses SP200 as the common connection between the modules and the data link
connector (DLC).
DIAGNOSTIC AIDS
- Use the Data Link References to identify the low speed GMLAN serial data modules.
- This test is used for a total low speed GMLAN communication failure. If only 1 module is not
communicating and sets no DTC, ensure that the vehicle is equipped with the module, then use
DTC U0100-U0299 for diagnostics.
- An open in the low speed GMLAN serial data circuit between the splice pack and a module will
only effect the specific module. This type of failure will set a loss of communication DTC for each
module effected, and the other modules will still communicate.
- An open in the DLC ground circuit terminal 5 will allow the scan tool to operate to set up the
vehicle on the tool and then not communicate with the vehicle. When the scan tool is to the point of
communicating with the vehicle, a message on the scan tool will indicate "no CANdi module
detected" and will not communicate.
- An open between the DLC and SP200 will only effect the communication with the scan tool. The
vehicle modules will still communicate, and the vehicle will start.
- The engine will not start when there is a total malfunction of the low speed GMLAN serial data
circuit.The following conditions may cause a total loss of low speed GMLAN data communication: The low speed GMLAN serial data circuit shorted to ground or voltage.
- A module internal malfunction that causes a short to voltage or ground on the low speed GMLAN
circuit.
- Use the DMM MIN/MAX function to capture/locate intermittent conditions.
CIRCUIT/SYSTEM TESTING
1. Test for less than 1 ohm of resistance between the DLC ground circuit terminal 5 and ground.
- If greater than 1 ohm, test the ground circuit for open/high resistance.
2. Ignition OFF, disconnect the harness connector (splice pack comb) at SP 200. Install a 3-amp
fused jumper wire between pin A and pin M of SP
200, harness side.
3. Ignition ON, with a scan tool, attempt to communicate with the BCM. Communication should be
available.
- If no communication, test the following circuits: serial data circuit for a short to ground, a short to
voltage or an open/high resistance between the BCM and DLC, BCM voltage inputs for open/high
resistance or short to ground, BCM grounds for open/high resistance. If the circuits test normal,
replace the BCM.
4. Install another 3-amp fused jumper wire to pin A of SP 200, harness side. 5. Use the other end
of the jumper wire to connect all other pins, harness side, one at a time and verify that low speed
communication remains
available to the BCM. If low speed communication is interrupted after connecting an individual module at SP 200, test the
serial data circuit between SP 200 and the last module connected for a short to ground and short to
voltage. If the circuit tests normal, replace the module that caused no communication.
REPAIR INSTRUCTIONS
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Perform the Diagnostic Repair Verification after completing the repair. Control Module References for module replacement, setup, and programming See: Testing and
Inspection/Programming and Relearning
- GMLAN Wiring Repairs See: Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/Verification Tests and Procedures
Scan Tool Does Not Power Up
SCAN TOOL DOES NOT POWER UP
DIAGNOSTIC FAULT INFORMATION
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle.
CIRCUIT/SYSTEM DESCRIPTION
The data link connector (DLC) is a standardized 16 cavity connector. Connector design and
location is dictated by an industry wide standard, and is required to provide the following: Scan tool power battery positive voltage at terminal 16
- Scan tool power ground at terminal 4
- Common signal ground at terminal 5
DIAGNOSTIC AIDS
- The scan tool will power up with the ignition OFF. Some modules however, will not communicate
unless the ignition is ON and the power mode master (PMM) module sends the appropriate power
mode message.
- If the battery positive voltage, ground circuits and connections of the DLC are functioning
properly, the malfunction must be due to the scan tool/CANdi module.
- Use the DMM MIN/MAX function to capture/locate intermittent conditions.
CIRCUIT/SYSTEM TESTING
1. Ignition ON, test for battery voltage between the battery positive voltage circuit of the DLC and
ground.
- If less than battery voltage, repair the voltage supply circuit for a short to ground or an open/high
resistance.
2. Test for less than 1 ohm of resistance between the ground circuit of the DLC and ground.
- If greater than 1 ohm, repair the ground circuit for an open/high resistance.
3. If all tests normal, refer to the scan tool/CANdi module user guide.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the repair See: Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests and
Procedures.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Locations
Knock Sensor: Locations
Front Of Engine
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Front Of The Engine
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Information > Locations > Page 6420
Rear Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions
Knock Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Information > Diagrams > Diagram Information and Instructions > Page 6431
Knock Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6445
3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Information > Diagrams > Diagram Information and Instructions > Page 6447
Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 6448
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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Information > Diagrams > Diagram Information and Instructions > Page 6449
5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 6450
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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Information > Diagrams > Diagram Information and Instructions > Page 6451
4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 6452
6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6453
BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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Information > Diagrams > Diagram Information and Instructions > Page 6454
9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Information > Diagrams > Diagram Information and Instructions > Page 6456
Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Information > Diagrams > Diagram Information and Instructions > Page 6457
Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 6458
View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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Information > Diagrams > Diagram Information and Instructions > Page 6462
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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Information > Diagrams > Diagram Information and Instructions > Page 6465
3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 6469
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 6471
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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Information > Diagrams > Diagram Information and Instructions > Page 6472
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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Information > Diagrams > Diagram Information and Instructions > Page 6473
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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Information > Diagrams > Diagram Information and Instructions > Page 6474
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6509
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 6510
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 6511
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 6512
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6513
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6514
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6515
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 6516
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6517
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6518
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6519
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6520
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6521
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 6522
Knock Sensor: Connector Views
Knock Sensor 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 6523
Knock Sensor 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Knock Sensor > Component
Information > Service and Repair > Knock Sensor Replacement - Bank 1
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 1
KNOCK SENSOR REPLACEMENT - BANK 1
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. If equipped with front wheel drive
(FWD), disconnect the engine wiring harness electrical connector (1) from the knock sensor.
3. If equipped with all wheel drive (AWD), disconnect the engine wiring harness electrical connector
(1) from the knock sensor.
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4. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
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2. If equipped with AWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor.
3. If equipped with FWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor. 4. Lower the vehicle.
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Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 2
KNOCK SENSOR REPLACEMENT - BANK 2
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Disconnect the engine wiring harness
electrical connector (2) from the knock sensor.
3. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
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1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
2. Connect the engine wiring harness electrical connector (2) to the knock sensor. 3. Lower the
vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Malfunction Indicator Lamp >
Component Information > Testing and Inspection
Malfunction Indicator Lamp: Testing and Inspection
MALFUNCTION INDICATOR LAMP (MIL) DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
CIRCUIT/SYSTEM DESCRIPTION
Ignition voltage is supplied to the malfunction indicator lamp (MIL). The engine control module
(ECM) turns the MIL ON by grounding the MIL control circuit.
CIRCUIT/SYSTEM VERIFICATION
Ignition ON, the MIL should turn ON and OFF when commanded with a scan tool.
CIRCUIT/SYSTEM TESTING
1. Ignition OFF, disconnect the harness connector at the instrument panel cluster (IPC). 2. Ignition
ON, verify that a test lamp illuminates between the ignition circuit and ground.
- If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high
resistance. If the circuit tests normal and the ignition circuit fuse is open, replace the IPC.
3. Connect a test lamp between the control circuit and the ignition circuit. 4. Command the MIL ON
and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the
commanded states.
- If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests
normal, replace the ECM.
- If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high
resistance. If the circuit tests normal, replace the ECM.
5. If all circuits test normal, replace the IPC.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Control Module References for ECM replacement, setup, and programming
- Instrument Cluster Replacement See: Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/Verification Tests and Procedures See: Testing and
Inspection/Programming and Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Manifold Pressure/Vacuum
Sensor > Component Information > Locations
Rear Of The Engine
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Manifold Pressure/Vacuum Sensor: Service and Repair
MANIFOLD ABSOLUTE PRESSURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the manifold absolute pressure (MAP) sensor electrical connector.
2. Remove the MAP sensor retaining bolt (3) and bracket (2). 3. Remove the MAP sensor (1) and
the MAP sensor port seal if it is still retained in the intake manifold.
INSTALLATION PROCEDURE
1. Install the MAP sensor (1) to the intake manifold.
2. NOTE: Refer to Fastener Notice.
Install the MAP sensor retaining bracket (2) and bolt (3).
Tighten the bolt to 10 N.m (89 lb in).
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3. Connect the MAP sensor electrical connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oil Pressure Sensor >
Component Information > Service and Repair
Oil Pressure Sensor: Service and Repair
Engine Oil Pressure Sensor and/or Switch Replacement
Removal Procedure
1. Raise and support the vehicle.
2. Disconnect the oil pressure indicator switch electrical connector (2).
3. Remove the oil pressure indicator switch from the engine block.
Installation Procedure
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1. Apply sealer to the oil pressure indicator switch threads.
Notice: Refer to Component Fastener Tightening Notice.
2. Install the oil pressure indicator switch.
Tighten the switch to 16 N.m (12 lb ft).
3. Connect the oil pressure indicator switch electrical connector (2). 4. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Locations
Oxygen Sensors
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions
Oxygen Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Component Information > Diagrams > Diagram Information and Instructions > Page 6553
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Oxygen Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 6637
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 6638
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 6639
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 6640
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 6641
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 6642
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 6643
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 6644
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 6645
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 6646
Oxygen Sensor: Connector Views
Heated Oxygen Sensor Bank 1 Sensor 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 6647
Heated Oxygen Sensor Bank 1 Sensor 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Service Precautions > Heated Oxygen and Oxygen Sensor Notice
Oxygen Sensor: Service Precautions Heated Oxygen and Oxygen Sensor Notice
Heated Oxygen and Oxygen Sensor Notice
Notice: Do not remove the pigtail from either the heated oxygen sensor (HO2S) or the oxygen
sensor (O2S). Removing the pigtail or the connector will affect sensor operation.
Handle the oxygen sensor carefully. Do not drop the HO2S. Keep the in-line electrical connector
and the louvered end free of grease, dirt, or other contaminants. Do not use cleaning solvents of
any type.
Do not repair the wiring, connector or terminals. Replace the oxygen sensor if the pigtail wiring,
connector, or terminal is damaged.
This external clean air reference is obtained by way of the oxygen sensor signal and heater wires.
Any attempt to repair the wires, connectors, or terminals could result in the obstruction of the air
reference and degraded sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor:
* Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors.
These materials may get into the sensor causing poor performance.
* Do not damage the sensor pigtail and harness wires in such a way that the wires inside are
exposed. This could provide a path for foreign materials to enter the sensor and cause
performance problems.
* Ensure the sensor or vehicle lead wires are not bent sharply or kinked. Sharp bends or kinks
could block the reference air path through the lead wire.
* Do not remove or defeat the oxygen sensor ground wire, where applicable. Vehicles that utilize
the ground wired sensor may rely on this ground as the only ground contact to the sensor.
Removal of the ground wire will cause poor engine performance.
* Ensure that the peripheral seal remains intact on the vehicle harness connector in order to
prevent damage due to water intrusion. The engine harness may be repaired using Packard's
Crimp and Splice Seals Terminal Repair Kit. Under no circumstances should repairs be soldered
since this could result in the air reference being obstructed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Service Precautions > Heated Oxygen and Oxygen Sensor Notice > Page 6650
Oxygen Sensor: Service Precautions Silicon Contamination of Heated Oxygen Sensors Notice
Silicon Contamination of Heated Oxygen Sensors Notice
Notice: Contamination of the oxygen sensor can result from the use of an inappropriate RTV
sealant (not oxygen sensor safe) or excessive engine coolant or oil consumption. Remove the
HO2S and visually inspect the portion of the sensor exposed to the exhaust stream in order to
check for contamination. If contaminated, the portion of the sensor exposed to the exhaust stream
will have a white powdery coating. Silicon contamination causes a high but false HO2S signal
voltage (rich exhaust indication). The control module will then reduce the amount of fuel delivered
to the engine, causing a severe driveability problem. Eliminate the source of contamination before
replacing the oxygen sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Service Precautions > Heated Oxygen and Oxygen Sensor Notice > Page 6651
Oxygen Sensor: Service Precautions Heated Oxygen Sensor Resistance Learn Reset Notice
Heated Oxygen Sensor Resistance Learn Reset Notice
Notice: When replacing the HO2S perform the following:
* A code clear with a scan tool, regardless of whether or not a DTC is set
* HO2S heater resistance learn reset with a scan tool, where available
Perform the above in order to reset the HO2S resistance learned value and avoid possible HO2S
failure.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Service and Repair > Heated Oxygen Sensor 1 Replacement
Oxygen Sensor: Service and Repair Heated Oxygen Sensor 1 Replacement
HEATED OXYGEN SENSOR 1 REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the HO2S 1 harness connector. 2. Remove the HO2S 1 from the exhaust manifold.
INSTALLATION PROCEDURE
1. NOTE: Silicone based products will contaminate the HO2S. Use only a nickel based anti-seize
compound that does not contain silicone.
Apply a small amount of anti-seize compound to the threads of the HO2S 2.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the HO2S 1 to the exhaust manifold.
Tighten the HO2S 1 to 42 N.m (31 lb ft).
3. Connect the HO2S 1 harness connector. Push in the connector until a click is heard and pull
back to confirm a positive engagement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Service and Repair > Heated Oxygen Sensor 1 Replacement > Page 6654
Oxygen Sensor: Service and Repair Heated Oxygen Sensor 2 Replacement
HEATED OXYGEN SENSOR 2 REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Disconnect the HO2S 2 harness connector (3).
3. IMPORTANT: Silicone based products will contaminate the HO2S. DO NOT use products
containing silicone on or near the HO2S.
Use a liquid penetrate before removing the sensor.
4. Remove the HO2S 2 (2) from the exhaust pipe.
INSTALLATION PROCEDURE
1. NOTE: Silicone based products will contaminate the HO2S. Use only a nickel based anti-seize
compound that does not contain silicone.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor >
Component Information > Service and Repair > Heated Oxygen Sensor 1 Replacement > Page 6655
Apply a small amount of anti-seize compound to the threads of the HO2S 2.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the HO2S 2 (2).
Tighten the HO2S 2 to 42 N.m (31 lb ft).
3. Connect the HO2S 2 harness connector (3). Push in the connector until a click is heard, then pull
back to confirm a positive engagement. 4. Ensure the HO2S 2 harness pigtail connector is secure
to the chassis.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins >
Customer Interest: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn Signal Lever Inop
Body Control Module: Customer Interest Wipers - Wipers Work On One Speed/Turn Signal Lever
Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins >
Customer Interest: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn Signal Lever Inop > Page 6665
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins >
Customer Interest: > 06-06-03-009 > Oct > 06 > Electrical - Battery Goes Dead Overnight
Body Control Module: Customer Interest Electrical - Battery Goes Dead Overnight
Bulletin No.: 06-06-03-009
Date: October 19, 2006
INFORMATION
Subject: Diagnostic Information on Battery Draw No Start - Body Control Module, BCM Power
Timer
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2006-2007 Chevrolet Impala, Monte
Carlo 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Tahoe, Silverado, Suburban 2007 GMC Sierra, Yukon, Yukon XL, Denali, Denali XL 2007
Pontiac Torrent
When performing normal diagnosis on a battery that has gone dead overnight, a technician may
notice that the vehicle has approximately 4.1 amp draw on the system. The draw may be steady or
may drop down to a low milliamp reading for 1-2 seconds and then rise back up to the 4.1 amp
range. If this amp draw condition is observed, check for aftermarket accessories or an improperly
installed GM accessory that is wired into circuit 6815 (orange wire) for courtesy lamps. Anytime
aftermarket accessories are installed into the courtesy lamp circuit, it can cause the inadvertent
power timer in the body control module (BCM) to keep resetting. The BCM will remain awake and
cause the draw of approximately 4.1 amps.
When servicing a vehicle with this concern, back out pin 1 of the connector 2 at the BCM and see if
the draw goes away. If the draw goes away, check for an aftermarket accessory (Lojack,
non-factory DVD system, alarm, etc.) that is improperly installed in circuit 6815.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins > All
Technical Service Bulletins for Body Control Module: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To Reprogram
Body Control Module
Body Control Module: All Technical Service Bulletins Body Controls - Unable To Reprogram Body
Control Module
INFORMATION
Bulletin No.: 09-08-47-001A
Date: June 14, 2010
Subject: Unable to Reprogram Body Control Module (BCM), BCM Reprogramming Did Not
Complete - Revised Reprogramming Instructions
Models:
2006-2010 Buick Lucerne 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade, Escalade ESV,
Escalade EXT, SRX 2008-2010 Cadillac CTS 2010 Cadillac CTS Wagon 2010 Chevrolet Camaro
2006-2007 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala 2007-2010 Chevrolet Avalanche,
Equinox, Silverado, Suburban, Tahoe 2008-2010 Chevrolet Express 2009-2010 Chevrolet
Traverse 2007-2010 GMC Acadia, Sierra, Yukon, Yukon XL, Yukon Denali, Yukon Denali XL
2008-2010 GMC Savana 2010 GMC Terrain 2007-2009 Pontiac Torrent 2008-2009 Pontiac G8
2008-2009 HUMMER H2 2007-2009 Saturn OUTLOOK 2008-2009 Saturn VUE Refer to GMVIS
Supercede: This bulletin is being revised to update the models and the model years. Please
discard Corporate Bulletin Number 09-08-47-001 (Section 08 - Body and Accessories).
Some technicians may experience an unsuccessful body control module (BCM) reprogramming
event, when choosing the Reprogram ECU selection on the Service Programming System (SPS).
The technician may also notice that when attempting to reprogram the BCM again after this
incident has occurred, the BCM may not complete the programming event.
This condition may be caused by the following:
- A reprogramming event that was interrupted due to a lack of communication between the vehicle
and the TIS2WEB terminal.
- The vehicle experienced low system voltage during the reprogramming event.
Important Do not replace the BCM for this condition.
SPS Programming Process Selection
Perform this procedure first.
1. If reprogramming has failed during the initial reprogramming event, back out of the SPS
application completely. 2. Re-select SPS from the TIS2WEB terminal application. 3. When
selecting the Programming Process , choose Replace and Program ECU , even though a new
BCM is NOT being installed. 4. Reprogram the BCM using the Service Programming System (SPS)
with the latest calibration available on TIS2WEB. Refer to the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins > All
Technical Service Bulletins for Body Control Module: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To Reprogram
Body Control Module > Page 6675
During programming, the battery voltage must be maintained within the proper range of 12-15
volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
BCM Still Fails to Reprogram
If the BCM still fails to reprogram perform this procedure:
1. Turn OFF the ignition, and remove the key. 2. Remove the fuses that power up the following
modules/components for a minimum of 2 minutes:
- BCM
- EBCM
- ECM
- IS LPS (located in the left IP fusebox)
- TCM
3. Open and close the driver door. Allow enough time for the retained accessory power (RAP) to
turn OFF. 4. Reinstall the fuses. 5. When selecting the Programming Process , choose Replace
and Program ECU , even though a new BCM is NOT being installed. 6. Reprogram the BCM using
the Service Programming System (SPS) with the latest calibration available on TIS2WEB. Refer to
the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins > All
Technical Service Bulletins for Body Control Module: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control Module
(BCM) Grounds
Body Control Module: All Technical Service Bulletins Body Controls - Body Control Module (BCM)
Grounds
INFORMATION
Bulletin No.: 07-08-47-004C
Date: December 04, 2009
Subject: Information on Body Control Module (BCM) Grounds
Models:
2006-2010 Buick Lucerne 2007-2010 Buick Enclave 2006-2010 Cadillac DTS 2007-2009 Cadillac
SRX 2008-2010 Cadillac CTS 2006-2008 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala
2007-2009 Chevrolet Equinox 2008-2010 Chevrolet Express, Traverse 2007-2010 GMC Acadia
2008-2010 GMC Savana 2007-2009 Pontiac Torrent 2007-2010 Saturn OUTLOOK 2008-2010
Saturn VUE 2008-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models, model years and information.
Please discard Corporate Bulletin Number 07-08-47-004B (Section 08 - Body & Accessories).
The purpose of this bulletin is to inform dealers of an issue that could cause internal module
damage to the Body Control Module (BCM).
The BCM may be damaged when the module is supplied with battery power and the ground path is
removed. You must remove the negative battery cable first before removing a BCM ground.
Issue 1
Below is a list of vehicles and the components that the BCM ground path passes through. The
negative battery cable must be removed when removing the components noted below.
- 2008-2010 HUMMER H2 (Instrument panel electrical center)
- 2008-2010 Saturn VUE (I/P splice pack)
Issue 2
It is important to note when removing a ring terminal ground, splice pack connector, or inline
harness connector for all the vehicles listed in the model section above, that it doesn't include a
BCM ground path. You must remove the negative battery cable if you determine that it is a BCM
ground path.
As an example: If the BCM grounds become disconnected, internal damage to the BCM will occur.
Other systems controlled by the BCM will also be affected, such as an inoperative or intermittent
condition in one or more of the following systems:
- Interior lighting will remain on or will not work
- Exterior lighting will remain on or will not work
- Remote keyless entry
- Door locks
- Power windows and mirrors
- Remote vehicle start
- Remote trunk release
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins > All
Technical Service Bulletins for Body Control Module: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control Module
(BCM) Grounds > Page 6680
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins > All
Technical Service Bulletins for Body Control Module: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One
Speed/Turn Signal Lever Inop
Body Control Module: All Technical Service Bulletins Wipers - Wipers Work On One Speed/Turn
Signal Lever Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins > All
Technical Service Bulletins for Body Control Module: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One
Speed/Turn Signal Lever Inop > Page 6685
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins > All
Technical Service Bulletins for Body Control Module: > 06-06-03-009 > Oct > 06 > Electrical - Battery Goes Dead Overnight
Body Control Module: All Technical Service Bulletins Electrical - Battery Goes Dead Overnight
Bulletin No.: 06-06-03-009
Date: October 19, 2006
INFORMATION
Subject: Diagnostic Information on Battery Draw No Start - Body Control Module, BCM Power
Timer
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2006-2007 Chevrolet Impala, Monte
Carlo 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Tahoe, Silverado, Suburban 2007 GMC Sierra, Yukon, Yukon XL, Denali, Denali XL 2007
Pontiac Torrent
When performing normal diagnosis on a battery that has gone dead overnight, a technician may
notice that the vehicle has approximately 4.1 amp draw on the system. The draw may be steady or
may drop down to a low milliamp reading for 1-2 seconds and then rise back up to the 4.1 amp
range. If this amp draw condition is observed, check for aftermarket accessories or an improperly
installed GM accessory that is wired into circuit 6815 (orange wire) for courtesy lamps. Anytime
aftermarket accessories are installed into the courtesy lamp circuit, it can cause the inadvertent
power timer in the body control module (BCM) to keep resetting. The BCM will remain awake and
cause the draw of approximately 4.1 amps.
When servicing a vehicle with this concern, back out pin 1 of the connector 2 at the BCM and see if
the draw goes away. If the draw goes away, check for an aftermarket accessory (Lojack,
non-factory DVD system, alarm, etc.) that is improperly installed in circuit 6815.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins > All Other
Service Bulletins for Body Control Module: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To Reprogram Body
Control Module
Body Control Module: All Technical Service Bulletins Body Controls - Unable To Reprogram Body
Control Module
INFORMATION
Bulletin No.: 09-08-47-001A
Date: June 14, 2010
Subject: Unable to Reprogram Body Control Module (BCM), BCM Reprogramming Did Not
Complete - Revised Reprogramming Instructions
Models:
2006-2010 Buick Lucerne 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade, Escalade ESV,
Escalade EXT, SRX 2008-2010 Cadillac CTS 2010 Cadillac CTS Wagon 2010 Chevrolet Camaro
2006-2007 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala 2007-2010 Chevrolet Avalanche,
Equinox, Silverado, Suburban, Tahoe 2008-2010 Chevrolet Express 2009-2010 Chevrolet
Traverse 2007-2010 GMC Acadia, Sierra, Yukon, Yukon XL, Yukon Denali, Yukon Denali XL
2008-2010 GMC Savana 2010 GMC Terrain 2007-2009 Pontiac Torrent 2008-2009 Pontiac G8
2008-2009 HUMMER H2 2007-2009 Saturn OUTLOOK 2008-2009 Saturn VUE Refer to GMVIS
Supercede: This bulletin is being revised to update the models and the model years. Please
discard Corporate Bulletin Number 09-08-47-001 (Section 08 - Body and Accessories).
Some technicians may experience an unsuccessful body control module (BCM) reprogramming
event, when choosing the Reprogram ECU selection on the Service Programming System (SPS).
The technician may also notice that when attempting to reprogram the BCM again after this
incident has occurred, the BCM may not complete the programming event.
This condition may be caused by the following:
- A reprogramming event that was interrupted due to a lack of communication between the vehicle
and the TIS2WEB terminal.
- The vehicle experienced low system voltage during the reprogramming event.
Important Do not replace the BCM for this condition.
SPS Programming Process Selection
Perform this procedure first.
1. If reprogramming has failed during the initial reprogramming event, back out of the SPS
application completely. 2. Re-select SPS from the TIS2WEB terminal application. 3. When
selecting the Programming Process , choose Replace and Program ECU , even though a new
BCM is NOT being installed. 4. Reprogram the BCM using the Service Programming System (SPS)
with the latest calibration available on TIS2WEB. Refer to the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins > All Other
Service Bulletins for Body Control Module: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To Reprogram Body
Control Module > Page 6695
During programming, the battery voltage must be maintained within the proper range of 12-15
volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
BCM Still Fails to Reprogram
If the BCM still fails to reprogram perform this procedure:
1. Turn OFF the ignition, and remove the key. 2. Remove the fuses that power up the following
modules/components for a minimum of 2 minutes:
- BCM
- EBCM
- ECM
- IS LPS (located in the left IP fusebox)
- TCM
3. Open and close the driver door. Allow enough time for the retained accessory power (RAP) to
turn OFF. 4. Reinstall the fuses. 5. When selecting the Programming Process , choose Replace
and Program ECU , even though a new BCM is NOT being installed. 6. Reprogram the BCM using
the Service Programming System (SPS) with the latest calibration available on TIS2WEB. Refer to
the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins > All Other
Service Bulletins for Body Control Module: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control Module (BCM)
Grounds
Body Control Module: All Technical Service Bulletins Body Controls - Body Control Module (BCM)
Grounds
INFORMATION
Bulletin No.: 07-08-47-004C
Date: December 04, 2009
Subject: Information on Body Control Module (BCM) Grounds
Models:
2006-2010 Buick Lucerne 2007-2010 Buick Enclave 2006-2010 Cadillac DTS 2007-2009 Cadillac
SRX 2008-2010 Cadillac CTS 2006-2008 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala
2007-2009 Chevrolet Equinox 2008-2010 Chevrolet Express, Traverse 2007-2010 GMC Acadia
2008-2010 GMC Savana 2007-2009 Pontiac Torrent 2007-2010 Saturn OUTLOOK 2008-2010
Saturn VUE 2008-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models, model years and information.
Please discard Corporate Bulletin Number 07-08-47-004B (Section 08 - Body & Accessories).
The purpose of this bulletin is to inform dealers of an issue that could cause internal module
damage to the Body Control Module (BCM).
The BCM may be damaged when the module is supplied with battery power and the ground path is
removed. You must remove the negative battery cable first before removing a BCM ground.
Issue 1
Below is a list of vehicles and the components that the BCM ground path passes through. The
negative battery cable must be removed when removing the components noted below.
- 2008-2010 HUMMER H2 (Instrument panel electrical center)
- 2008-2010 Saturn VUE (I/P splice pack)
Issue 2
It is important to note when removing a ring terminal ground, splice pack connector, or inline
harness connector for all the vehicles listed in the model section above, that it doesn't include a
BCM ground path. You must remove the negative battery cable if you determine that it is a BCM
ground path.
As an example: If the BCM grounds become disconnected, internal damage to the BCM will occur.
Other systems controlled by the BCM will also be affected, such as an inoperative or intermittent
condition in one or more of the following systems:
- Interior lighting will remain on or will not work
- Exterior lighting will remain on or will not work
- Remote keyless entry
- Door locks
- Power windows and mirrors
- Remote vehicle start
- Remote trunk release
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Technical Service Bulletins > All Other
Service Bulletins for Body Control Module: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control Module (BCM)
Grounds > Page 6700
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
Body Control Module: Diagrams Body Control Module - C1
Body Control Module - C1 (Pin 1 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6703
Body Control Module - C1 (Pin 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6704
Body Control Module: Diagrams Body Control Module - C2
Body Control Module - C2 (Pin 1 To 20)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6705
Body Control Module - C2 (Pin 21 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6706
Body Control Module: Diagrams Body Control Module - C3
Body Control Module - C3 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6707
Body Control Module - C3 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6708
Body Control Module: Diagrams Body Control Module - C4
Body Control Module - C4 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6709
Body Control Module - C4 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6710
Body Control Module: Diagrams
Body Control Module - C1 (Pin 1 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6711
Body Control Module - C1 (Pin 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6712
Body Control Module - C2 (Pin 1 To 20)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6713
Body Control Module - C2 (Pin 21 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6714
Body Control Module - C3 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6715
Body Control Module - C3 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6716
Body Control Module - C4 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6717
Body Control Module - C4 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6718
Body Control Module - C5 (Pin 1 To 17)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6719
Body Control Module - C5 (Pin 18 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6720
Body Control Module - C6 (Pin 1 To 18)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Diagrams > Body Control Module - C1
> Page 6721
Body Control Module - C6 (Pin 19 To 25)
Body Control Module - C7 (Pin 1 To 28)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Service and Repair > Body Control
Module Replacement
Body Control Module: Service and Repair Body Control Module Replacement
BODY CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: If data is not retrieved from the malfunctioning body control module (BCM),
additional time will be required to program the
replacement BCM.
Retrieve data from the malfunctioning BCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
2. Rotate the ignition switch to the OFF position.
3. Remove the radio bezel. 4. Disconnect the BCM electrical harnesses. 5. Remove the BCM from
the instrument panel (I/P) retainer:
1. Pry the BCM tabs from the locking tabs on the underside of the restraint. 2. Slide the BCM out of
the retainer.
INSTALLATION PROCEDURE
1. Install the BCM. 2. Install the radio bezel. 3. Slide the BCM tabs into the slots in the I/P retainer
until the tabs lock into place. 4. Connect the electrical connectors. 5. Program a new or a
remanufactured BCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Body Control Module > Component Information > Service and Repair > Body Control
Module Replacement > Page 6724
Body Control Module: Service and Repair Body Control Module (BCM) Programming/RPO
Configuration
BODY CONTROL MODULE (BCM) PROGRAMMING/RPO CONFIGURATION
INTRODUCTION
A new body control module (BCM) must be programmed with the latest operating software and
vehicle calibrations. Ensure that the following conditions exist in order to prepare for BCM
programming:
- The battery is fully charged.
- The ignition switch is in the ON position.
- The data link connector (DLC) is accessible.
- All disconnected modules and devices are connected.
PROGRAMMING THE BCM
IMPORTANT: The vehicle will not start and many other functions may not operate properly if a
replacement BCM is not properly set up. The following procedures must be followed:
1. Programming the BCM 2. Learning the restraints ID
IMPORTANT: After the procedure is completed, the personalization settings of the BCM are set to
default settings. Inform the customer that the personalization must be set again.
LEARNING THE RESTRAINTS ID
Navigate on the scan tool to Body Control Module > Module Setup > Setup SDM Primary Key in
BCM, then follow the instructions on the screen.
IMPORTANT: After programming, perform the following to avoid future misdiagnosis:
1. Turn the ignition OFF for 10 seconds. 2. Connect the scan tool to the data link connector. 3. Turn
the ignition ON, with the engine OFF. 4. Use the scan tool in order to retrieve history DTCs from all
modules. 5. Clear all history DTCs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Electronic Throttle Control Module > Component Information > Locations
Electronic Throttle Control Module: Locations
Air Induction Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Electronic Throttle Control Module > Component Information > Locations > Page 6728
Front Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Electronic Throttle Control Module > Component Information > Locations > Page 6729
Rear Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Engine Control Module > Component Information > Technical Service Bulletins > Engine
Controls - Aftermarket Accessory Usage
Engine Control Module: Technical Service Bulletins Engine Controls - Aftermarket Accessory
Usage
INFORMATION
Bulletin No.: 04-06-04-054B
Date: November 18, 2010
Subject: Info - Non-GM Parts and Accessories (Aftermarket)
Models:
2011 and Prior GM Passenger Cars and Trucks
Supercede: This bulletin is being revised to add model years and update to the new U.S. Fixed
Operation Manager (FOM) and Canada Warranty Manager (WM) names. Please discard Corporate
Bulletin Number 04-06-04-054A (Section 06 - Engine/Propulsion System).
The recent rise and expansion of companies selling non-GM parts and accessories has made it
necessary to issue this reminder to dealers regarding GM's policy on the use and installation of
these aftermarket components.
When a dealer is performing a repair under the New Vehicle Limited Warranty, they are required to
use only genuine GM or GM-approved parts and accessories. This applies to all warranty repairs,
special policy repairs or any repairs paid for by GM. Parts and accessories advertised as being "the
same" as parts manufactured by GM, but not sold through GM, do not qualify for use in warranty
repairs, special policy repairs or any repairs paid for by GM.
During a warranty repair, if a GM original equipment part is not available through GM Customer
Care and Aftersales (GM CC&A;), ACDelco(R) distributors, other GM dealers or approved sources,
the dealer is to obtain comparable, non-GM parts and clearly indicate, in detail, on the repair order
the circumstances surrounding why non-GM parts were used. The dealer must give customers
written notice, prior to the sale or service, that such parts or accessories are not marketed or
warranted by General Motors.
It should also be noted that dealers modifying new vehicles and installing equipment, parts and
accessories obtained from sources not authorized by GM are responsible for complying with the
National Traffic and Motor Vehicle Safety Act. Certain non-approved parts or assemblies, installed
by the dealer or its agent not authorized by GM, may result in a change to the vehicle's design
characteristics and may affect the vehicle's ability to conform to federal law. Dealers must fully
understand that non-GM approved parts may not have been validated, tested or certified for use.
This puts the dealer at risk for potential liability in the event of a part or vehicle failure. If a GM part
failure occurs as the result of the installation or use of a non-GM approved part, the warranty will
not be honored.
A good example of non-authorized modification of vehicles is the result of an ever increasing
supply of aftermarket devices available to the customer, which claim to increase the horsepower
and torque of the Duramax(TM) Diesel Engines. These include the addition of, but are not limited to
one or more of the following modifications:
- Propane injection
- Nitrous oxide injection
- Additional modules (black boxes) that connect to the vehicle wiring systems
- Revised engine calibrations downloaded for the engine control module
- Calibration modules which connect to the vehicle diagnostic connector
- Modification to the engine turbocharger waste gate
Although the installation of these devices, or modification of vehicle components, can increase
engine horsepower and torque, they may also negatively affect the engine emissions, reliability
and/or durability. In addition, other powertrain components, such as transmissions, universal joints,
drive shafts, and front/rear axle components, can be stressed beyond design safety limits by the
installation of these devices.
General Motors does not support or endorse the use of devices or modifications that, when
installed, increase the engine horsepower and torque. It is because of these unknown stresses,
and the potential to alter reliability, durability and emissions performance, that GM has adopted a
policy that prevents any UNAUTHORIZED dealer warranty claim submissions to any remaining
warranty coverage, to the powertrain and driveline components whenever the presence of a
non-GM (aftermarket) calibration is confirmed - even if the non-GM control module calibration is
subsequently removed. Refer to the latest version of Bulletin 09-06-04-026 (V8 Gas Engines) or
06-06-01-007 (Duramax(TM) Diesel Engines) for more information on dealer requirements for
calibration verification.
These same policies apply as they relate to the use of non-GM accessories. Damage or failure
from the use or installation of a non-GM accessory will not be covered under warranty. Failure
resulting from the alteration or modification of the vehicle, including the cutting, welding or
disconnecting of the vehicle's original equipment parts and components will void the warranty.
Additionally, dealers will NOT be reimbursed or compensated by GM in the event of any legal
inquiry at either the local, state or federal level that
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Relays and Modules Computers and Control Systems > Engine Control Module > Component Information > Technical Service Bulletins > Engine
Controls - Aftermarket Accessory Usage > Page 6734
results from the alteration or modification of a vehicle using non-GM approved parts or accessories.
Dealers should be especially cautious of accessory companies that claim the installation of their
product will not void the factory warranty. Many times these companies have even given direction
on how to quickly disassemble the accessory in an attempt to preclude the manufacturer from
finding out that is has been installed.
Any suspect repairs should be reviewed by the Fixed Operations Manager (FOM), and in Canada
by the Warranty Manager (WM) for appropriate repair direction. If it is decided that a goodwill repair
is to be made on the vehicle, even with the installation of such non-GM approved components, the
customer is to be made aware of General Motors position on this issue and is to sign the
appropriate goodwill documentation required by General Motors.
It is imperative for dealers to understand that by installing such devices, they are jeopardizing not
only the warranty coverage, but also the performance and reliability of the customer's vehicle.
Disclaimer
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Engine Control Module: Technical Service Bulletins Engine/Transmission - Aftermarket Calibrations
INFORMATION
Bulletin No.: 09-06-04-026C
Date: August 13, 2010
Subject: Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V8 Gas
Engines Using Tech 2(R) or Global Diagnostic System (GDS)
Models:
2006-2011 GM Passenger Cars and Light Duty Trucks (Excluding Saab 9-7X) 2006-2009
HUMMER H2 2006-2010 HUMMER H3 Equipped with V8 Gas Powered Engines Only
Attention:
This bulletin applies to V8 gas powered engines ONLY. For Duramax(TM) diesel powered engines,
refer to the latest version of Corporate Bulletin Number 08-06-04-006G.
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 09-06-04-026A (Section 06 - Engine/Propulsion System).
General Motors is identifying an increasing number of engine, transmission and catalytic converter
part failures that are the result of non-GM (aftermarket) engine and transmission control
calibrations being used.
When alteration to the GM-released engine or transmission control calibrations occurs, it subjects
powertrain and driveline components (engine , transmission, transfer case, driveshaft and rear
axle) to stresses that were not tested by General Motors. It is because of these unknown stresses,
and the potential to alter reliability, durability and emissions performance, that GM has adopted a
policy that prevents any UNAUTHORIZED dealer warranty claim submissions to any remaining
warranty coverage, to the powertrain and driveline components whenever the presence of a
non-GM (aftermarket) calibration is confirmed - even if the non-GM control module calibration is
subsequently removed.
Warranty coverage is based on the equipment and calibrations that were released on the vehicle at
time of sale, or subsequently updated by GM. That's because GM testing and validation matches
the calibration to a host of criteria that is essential to assure reliability, durability and emissions
performance over the life of the warranty coverage and beyond. Stresses resulting from
calibrations different from those tested and released by GM can damage or weaken components,
leading to poor performance and or shortened life.
Additionally, non-GM (aftermarket) issued engine control modifications often do not meet the same
emissions performance standards as GM issued calibrations. Depending on state statutes,
individuals who install engine control module calibrations that put the vehicle outside the
parameters of emissions certification standards may be subject to fines and/or penalties.
This bulletin outlines a procedure to identify the presence of non-GM (aftermarket) calibrations. GM
recommends performing this check whenever a hard part failure is seen on internal engine or
transmission components, or before an engine assembly or transmission assembly is being
replaced under warranty. It is also recommended that the engine calibration verification procedure
be performed whenever diagnostics indicate that catalytic converter replacement is indicated.
The PQC has a process to confirm the ECM/PCM calibration is GM issued. The PQC will require a
picture of the engine calibration verification screen, as outlined in this bulletin, before authorizing
any V8 gas powered engine replacement.
If a non-GM calibration is found and verification has taken place through GM, the remaining
powertrain and driveline warranty will be blocked and notated in GMVIS and the dealership will be
notified. This block prevents any UNAUTHORIZED warranty claim submission.
1. Connect the Tech 2(R) to the vehicle. 2. Go to: Diagnostics and build the vehicle. 3. Select:
Powertrain. 4. Select: Engine. 5. *Select: Engine Control Module or PCM. 6. *Select: Module ID
Information or I/M Information System if the Module ID Information selection is not available. 7. *If
"I/M information System" was selected, it may be necessary to select "Vehicle Information" in order
to display the calibration information.
‹› If the CVN information is displayed as "N/A", it will be necessary to contact the TCSC to obtain
the CVN information.
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8. Take a CLEAR digital picture of the Tech 2(R) Vehicle Information screen showing the engine
Calibration IDs and Verification Numbers as
shown above. Retain the printout information and the Tech 2(R) screen photograph with the repair
order.
Note All pictures must be sent as a.jpg file.
9. E-mail a copy of the picture to
[email protected]. In the subject line of the e-mail include the
phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
10. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
11. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Tech 2(R) Displaying All Zeroes for the Verification Numbers on the Calibration ID and Verification
Number Screen
If the Tech 2(R) that you are using displays all zeroes for the Verification Numbers as shown, then
perform the following steps:
1. Update the Tech 2(R) with the latest software from TIS2WEB. 2. Turn OFF the ignition for 90
seconds. 3. Connect the Tech 2(R) to the vehicle. 4. Turn ON the ignition, and build the vehicle.
Observe the Tech 2(R) Calibration ID and Verification Number screen for proper operation.
‹› If the Tech 2(R) screen still does not display properly, then turn OFF the ignition for 90 seconds
again. Turn ON the ignition and observe the
same screen for proper operation.
Retrieving Calibrations From a Global A Vehicle
This information applies to the 2010 Camaro and is typical of the procedure that will be used on
Global A vehicles.
1. Turn OFF the ignition.
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2. Connect the MDI to the Data Link Connector (DLC) of the vehicle.
Note Use the USB port to make the following MDI connection:
3. Connect the MDI to a PC or laptop that has been downloaded with the GDS application from
TIS2WEB.
Note At least one Diagnostic Package must be installed on the PC to perform diagnostics. If GDS
was just installed, select: Add New Diagnostic Package and then select: a Diagnostic Package to
download.
4. Click: On the GDS icon on the PC. 5. The Login Page will appear. 6. Select: A User. 7. The ID
Screen will appear. 8. Select: The serial number of the MDI being used. 9. Select: Connect.
10. Verify that the system status is ready by observing for a flashing PC light icon on the MDI. 11.
Select: Make, Model and Model Year, in order to build the vehicle. 12. Click: Upload VIN, to allow
the VIN to be reported to the PC. 13. At: The Verification step, turn ON the ignition, with the engine
OFF. 14. Select: Next Action. 15. The Home Page will appear. 16. Select: Next. 17. The Diagnostic
Screen will appear.
Note Due to vehicle build, software and RPO variations, GDS may ask for additional information in
Step 18.
18. Select: Engine ID, if prompted. 19. Select: Module Diagnostics. 20. Select: ECM. 21. Select: ID
Information. 22. The Diagnostics page will appear.
Typical View of GDS Calibration History Screen
Note GDS is capable of displaying up to 10 Calibration History events.
23. Select: Calibration History from the drop down menu in order to display the following items on
the screen:
- Calibration History Buffer
- Number of Calibration History Events Stored
- Calibration Part Number History
- Calibration Verification Number History
24. Select: Screenshot. 25. Name and save the file in an appropriate folder. 26. Select : Print, and
retain a copy of the screenshot with the repair order.
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Note All pictures must be sent as a.jpg file.
27. E-mail a copy of the screenshot to
[email protected]. In the subject line of the e-mail
include the phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
28. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
29. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Warranty Information
- The Dealership Service Management must be involved in any situation that would justify the use
of labor operation Z1111.
- Notify the Fixed Operations Manager (FOM) (Warranty Manager (WM) in Canada) of the
situation.
- All claims will have to be routed to the FOM (WM in Canada) for approval.
- Please refer to Corporate Bulletin Number 09-00-89-016, Labor Operation Z1111 - Suspected
Tampering or Vehicle Modifications for important information.
For vehicles repaired under warranty, use the table.
Disclaimer
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Engine Control Module: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Engine Control Module: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Engine Control Module: Connector Views
Electronic Control Module (ECM) - C1 (Pin 1 To 24)
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Electronic Control Module (ECM) - C1 (Pin 27 To 73)
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Electronic Control Module (ECM) - C2 (Pin 2 To 29)
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Electronic Control Module (ECM) - C2 (Pin 30 To 80)
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Electronic Control Module (ECM) C1 (Pin 1 To 27)
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Electronic Control Module (ECM) C1 (Pin 28 To 73)
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Electronic Control Module (ECM) C2 (Pin 2 To 29)
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Electronic Control Module (ECM) C2 (Pin 30 To 80)
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Engine Control Module: Description and Operation
ENGINE CONTROL MODULE DESCRIPTION
The engine control module (ECM) interacts with many emission related components and systems,
and monitors the emission related components and systems for deterioration. OBD II diagnostics
monitor the system performance and a diagnostic trouble code (DTC) sets if the system
performance degrades.The malfunction indicator lamp (MIL) operation and the DTC storage are
dictated by the DTC type. A DTC is ranked as a Type A or Type B if the DTC is emissions related.
Type C is a non-emissions related DTC.The ECM is in the engine compartment. The ECM is the
control center of the engine controls system. The ECM controls the following components:
- The fuel injection system
- The ignition system
- The emission control systems
- The on-board diagnostics
- The A/C and fan systems
- The throttle actuation control (TAC) system
The ECM constantly monitors the information from various sensors and other inputs, and controls
the systems that affect the vehicle performance and the emissions. The ECM also performs
diagnostic tests on various parts of the system. The ECM can recognize operational problems and
alert the driver via the MIL. When the ECM detects a malfunction, the ECM stores a DTC. The
condition area is identified by the particular DTC that is set. This aids the technician in making
repairs.
ECM Function
The engine control module (ECM) can supply 5 volts or 12 volts to the various sensors or switches.
This is done through pull-up resistors to the regulated power supplies within the ECM. In some
cases, even an ordinary shop voltmeter will not give an accurate reading because the resistance is
too low. Therefore, a DMM with at least 10 megaohms input impedance is required in order to
ensure accurate voltage readings.The ECM controls the output circuits by controlling the ground or
the power feed circuit through the transistors or a device called an output driver module.
EEPROM
The electronically erasable programmable read only memory (EEPROM) is a permanent memory
that is physically part of the engine control module (ECM). The EEPROM contains program and
calibration information that the ECM needs in order to control the powertrain operation.Special
equipment, as well as the correct program and calibration for the vehicle, are required in order to
reprogram the ECM.
Data Link Connector (DLC)
The data link connector (DLC) is a 16-pin connector that provides the technician a means of
accessing serial data for aid in the diagnosis. This connector allows the technician to use a scan
tool in order to monitor the various serial data parameters, and display the DTC information. The
DLC is located inside of the drivers compartment, underneath the dash.
Malfunction Indicator Lamp (MIL)
The malfunction indicator lamp (MIL) is inside of the instrument panel cluster (IPC). The MIL is
controlled by the engine control module (ECM) and illuminates when the ECM detects a condition
that affects the vehicle emissions.
ECM Service Precautions
The engine control module (ECM), by design, can withstand the normal current draws that are
associated with the vehicle operations. However, care must be used in order to avoid overloading
any of these circuits. When testing for opens or shorts, do not ground or apply voltage to any of the
ECM circuits unless the diagnostic procedure instructs you to do so. These circuits should only be
tested with a DMM.
Emissions Diagnosis For State I/M Programs
This OBD II equipped vehicle is designed to diagnose any conditions that could lead to excessive
levels of the following emissions:
- Hydrocarbons (HC)
- Carbon monoxide (CO)
- Oxides of nitrogen (NOx)
- Evaporative emission (EVAP) system losses
Should this vehicles on-board diagnostic system (ECM) detect a condition that could result in
excessive emissions, the ECM turns ON the malfunction indicator lamp (MIL) and stores a DTC
that is associated with the condition.
Aftermarket (Add-On) Electrical And Vacuum Equipment
NOTE:
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- Do not attach add-on vacuum operated equipment to this vehicle. The use of add-on vacuum
equipment may result in damage to vehicle components or systems.
- Connect any add-on electrically operated equipment to the vehicle's electrical system at the
battery (power and ground) in order to prevent damage to the vehicle. Aftermarket, add-on,
electrical and vacuum equipment is defined as any equipment installed on a vehicle after leaving
the factory that connects to the vehicles electrical or vacuum systems. No allowances have been
made in the vehicle design for this type of equipment. Add-on electrical equipment, even when
installed to these strict guidelines, may still cause the powertrain system to malfunction. This may
also include equipment not connected to the vehicle electrical system, such as portable telephones
and radios. Therefore, the first step in diagnosing any powertrain condition is to eliminate all of the
aftermarket electrical equipment from the vehicle. After this is done, if the problem still exists, the
problem may be diagnosed in the normal manner.
Electrostatic Discharge (ESD) Damage
IMPORTANT: In order to prevent possible electrostatic discharge damage to the engine control
module (ECM), DO NOT touch the connector pins on the ECM. The electronic components that are
used in the control systems are often designed to carry very low voltage. The electronic
components are susceptible to damage caused by electrostatic discharge. Less than 100 volts of
static electricity can cause damage to some electronic components. There are several ways for a
person to become statically charged. The most common methods of charging are by friction and by
induction. An example of charging by friction is a person sliding across a car seat.Charging by
induction occurs when a person with well insulated shoes stands near a highly charged object and
momentarily touches ground. Charges of the same polarity are drained off leaving the person
highly charged with the opposite polarity. Static charges can cause damage, therefore, it is
important to use care when handling and testing electronic components.
Emissions Control Information Label
The underhood Vehicle Emissions Control Information Label contains important emission
specifications and setting procedures. In the upper left corner is the exhaust emission information.
This identifies the year, the manufacturing division of the engine, the displacement of the engine in
liters, the class of the vehicle, and type of fuel metering system. There is also an illustrated
emission components and vacuum hose schematic. This label is located in the engine
compartment of every General Motors vehicle. If the label has been removed, it can be ordered
from GM service parts operations (GMSPO).
Underhood Inspection
IMPORTANT: This inspection is very important and must be done carefully and thoroughly.
Perform a careful underhood inspection when performing any diagnostic procedure or diagnosing
the cause of an emission test failure. This can often lead to repairing a condition without further
steps. Use the following guidelines when performing an inspection:
- Inspect all of the vacuum hoses for correct routing, pinches, cuts, or disconnects.
- Inspect any hoses that are difficult to see.
- Inspect all of the wires in the engine compartment for the following conditions: Burned or chafed spots
- Pinched wires
- Contact with sharp edges
- Contact with hot exhaust manifolds
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Engine Control Module: Service and Repair
ENGINE CONTROL MODULE REPLACEMENT
NOTE:
- Turn the ignition OFF when installing or removing the control module connectors and
disconnecting or reconnecting the power to the control module (battery cable, powertrain control
module (PCM)/engine control module (ECM)/transaxle control module (TCM) pigtail, control
module fuse, jumper cables, etc.) in order to prevent internal control module damage.
- Control module damage may result when the metal case contacts battery voltage. DO NOT
contact the control module metal case with battery voltage when servicing a control module, using
battery booster cables, or when charging the vehicle battery.
- In order to prevent any possible electrostatic discharge damage to the control module, do no
touch the connector pins or the soldered components on the circuit board.
- Remove any debris from around the control module connector surfaces before servicing the
control module. Inspect the control module connector gaskets when diagnosing or replacing the
control module. Ensure that the gaskets are installed correctly. The gaskets prevent contaminant
intrusion into the control module.
- The replacement control module must be programmed.
IMPORTANT:
- It is necessary to record the remaining engine oil life. If the replacement module is not programed
with the remaining engine oil life, the engine oil life will default to 100 percent. If the replacement
module is not programmed with the remaining engine oil life, the engine oil will need to be changed
at 5000 km (3,000 mi) from the last engine oil change.
- It is necessary to record the remaining automatic transmission fluid life. If the replacement module
is not programed with the remaining automatic transmission fluid life, the automatic transmission
fluid life will default to 100 percent. If the replacement module is not programmed with the
remaining automatic transmission fluid life, the automatic transmission fluid will need to be changed
at 83000 km (50,000 mi) from the last automatic transmission fluid change.
Removal Procedure
1. Using a scan tool, retrieve the percentage of remaining engine oil and the remaining automatic
transmission fluid life. Record the remaining engine
oil and the remaining automatic transmission fluid life.
2. Slide the engine control module (ECM) retainer rearward, disengaging the retainer from the
battery shield. 3. Remove the ECM retainer from the top of the battery shield.
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4. Remove the ECM from the retainer. 5. Place the ECM on the battery shield.
6. Disconnect the negative battery cable. 7. Disconnect the engine wiring harness electrical
connectors (2) from the ECM.
Installation Procedure
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1. Connect the engine wiring harness electrical connectors (2) to the ECM. 2. Place the ECM on
the battery shield.
3. Install the ECM to the retainer.
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4. Position the ECM and retainer to the top of the battery shield. 5. Slide the ECM retainer
rearward, engaging the retainer to the battery shield. 6. Connect the negative battery cable. 7.
Reprogram the PCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
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Pedal Assemblies
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Accelerator Pedal Position Sensor: Service and Repair
ACCELERATOR PEDAL POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the instrument panel left lower closeout panel.
2. Remove the connector position assurance (CPA) from the accelerator pedal position (APP)
sensor connector. 3. Disconnect the APP sensor harness connector.
4. IMPORTANT: Due to clearance issues, the upper attachment bolt cannot be removed from the
accelerator pedal assembly. Loose then
bolt completely and leave the bolt in the component until the assembly is removed from the vehicle.
Remove the APP assembly attachment bolts.
5. Remove the APP assembly from the vehicle.
INSTALLATION PROCEDURE
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1. Install the upper attachment bolt into the APP assembly. 2. Install the APP assembly into the
vehicle.
3. NOTE: Refer to Fastener Notice.
Install the remaining attachment bolts into the APP assembly.
Tighten the bolts to 25 N.m (18 lb ft).
4. Connect the APP sensor harness connector. Push the connector in until the lock position is felt,
then pull back to confirm engagement. 5. Install the CPA to the APP sensor harness connector. 6.
Install the instrument panel left lower closeout panel.
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Air Induction Components
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Air Flow Meter/Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Air Flow Meter/Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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Instructions > Page 6901
View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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Instructions > Page 6902
6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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Instructions > Page 6903
4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Instructions > Page 6904
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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Instructions > Page 6906
8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Instructions > Page 6911
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Instructions > Page 6962
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Instructions > Page 6964
Mass Air Flow (MAF) Sensor
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Air Flow Meter/Sensor: Service and Repair
MASS AIRFLOW SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Remove the screws that retain the MAF to the air cleaner assembly. 4. Remove the MAF from
the air cleaner assembly. 5. Remove the MAF to air cleaner assembly seal.
INSTALLATION PROCEDURE
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1. Install the seal to the MAF. 2. Install the MAF to the air cleaner assembly.
3. NOTE: Refer to Fastener Notice.
Install the screws that retain the MAF to the air cleaner assembly.
Tighten the screws to 4 N.m (35 lb in).
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Battery Current Sensor: Diagrams
Engine Electrical Connector End Views
Battery Current Sensor
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Battery Current Sensor: Service and Repair
Battery Current Sensor Replacement
Removal Procedure
1. Remove the negative battery cable. 2. Mark the location of the battery current sensor on the
battery cable with tape for reference during installation. 3. Remove the tape securing the battery
current sensor to the negative battery cable. 4. Mark the location of the negative battery cable clips
and remove the clip from the cable. 5. Squeeze the negative battery cable branches together.
Important: Note the orientation of the battery current sensor prior to removal.
6. Slide the battery current sensor (1) off of the negative battery cable.
Installation Procedure
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1. Squeeze the negative battery cable branches together.
Important: Ensure the battery current sensor is installed in the correct direction and location on the
negative battery cable.
2. Slide the NEW battery current sensor (1) up onto the negative battery cable to the location
previously marked during removal. 3. Wrap electrical tape around the battery current sensor leg in
order to secure the sensor to the negative battery cable. 4. Install the negative battery cable clip to
the cable to the locations previously marked during removal. 5. Install the negative battery cable.
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Top Of The Engine
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and Instructions
Camshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Camshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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and Instructions > Page 6986
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and Instructions > Page 6987
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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and Instructions > Page 7022
4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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and Instructions > Page 7023
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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and Instructions > Page 7024
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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and Instructions > Page 7026
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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and Instructions > Page 7027
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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and Instructions > Page 7028
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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and Instructions > Page 7029
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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and Instructions > Page 7030
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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and Instructions > Page 7031
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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and Instructions > Page 7033
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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and Instructions > Page 7034
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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and Instructions > Page 7035
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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and Instructions > Page 7037
2. Slide the lever lock forward while pressing down on the lever lock release tab.
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and Instructions > Page 7038
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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and Instructions > Page 7039
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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and Instructions > Page 7040
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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and Instructions > Page 7041
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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and Instructions > Page 7048
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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and Instructions > Page 7050
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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and Instructions > Page 7056
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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and Instructions > Page 7074
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Camshaft Position Sensor: Service and Repair
CAMSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the camshaft position (CMP) sensor electrical connector. 2. Remove the CMP
sensor bolt. 3. Remove the CMP sensor. 4. Inspect the CMP sensor O-rings for wear, cracks, or
leakage if the sensor is being reused. Replace the O-rings if damaged.
INSTALLATION PROCEDURE
1. Lubricate the CMP sensor O-rings with clean engine oil.
2. Install the CMP sensor.
3. NOTE: Refer to Fastener Notice.
Install the CMP sensor bolt.
Tighten the bolt to 10 N.m (89 lb in).
4. Connect the CMP sensor electrical connector.
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Specifications
Temperature Versus Resistance
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Rear Of The Engine
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Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Engine coolant must be drained below the level of the engine coolant temperature (ECT) sensor.
Refer to Draining and Filling Cooling System
(Static Fill) Draining and Filling Cooling System (GE 47716 Fill).
2. Disconnect the ECT sensor harness connector. 3. Remove the ECT sensor.
INSTALLATION PROCEDURE
1. IMPORTANT: Tap out sensor mounting hole in engine head to remove any thread sealant
residue. Clean any sealant residue from old sensor if the sensor is going to be reused.
If the sensor is being reused, apply thread sealant GM P/N 12345382 (Canadian P/N 10953489) or
equivalent, to sensor threads.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the ECT sensor.
Tighten the engine coolant temperature sensor to 23 N.m (17 lb ft).
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3. Connect the ECT sensor harness connector. Push in the connector until a click is heard, then
pull back to confirm a positive engagement. 4. Fill engine coolant to proper level. Refer to Draining
and Filling Cooling System (Static Fill) Draining and Filling Cooling System (GE 47716
Fill).
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Rear Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions
Crankshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Crankshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Crank Sensor
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Crankshaft Position Sensor: Testing and Inspection
CRANKSHAFT POSITION SENSOR SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DIAGNOSTIC FAULT INFORMATION
TYPICAL SCAN TOOL DATA
CIRCUIT/SYSTEM DESCRIPTION
The crankshaft position (CKP) sensor circuits consist of an engine control module (ECM) supplied
5-volt reference circuit, low reference circuit and an output signal circuit. The CKP sensor is an
internally magnetic biased digital output integrated circuit sensing device. The sensor detects
magnetic flux changes of the teeth and slots of a 58-tooth reluctor wheel on the crankshaft. Each
tooth on the reluctor wheel is spaced at 60-tooth spacing, with 2 missing teeth for the reference
gap. The CKP sensor produces an ON/OFF DC voltage of varying frequency, with 58 output pulses
per crankshaft revolution. The frequency of the CKP sensor output depends on the velocity of the
crankshaft. The CKP sensor sends a digital signal, which represents an image of the crankshaft
reluctor wheel, to the ECM as each tooth on the wheel rotates past the CKP sensor. The ECM
uses each CKP signal pulse to determine crankshaft speed and decodes the crankshaft reluctor
wheel reference gap to identify crankshaft position. This information is then used to determine the
optimum ignition and injection points of the engine. The ECM also uses CKP sensor output
information to determine the camshaft relative position to the crankshaft, to control camshaft
phasing, and to detect cylinder misfire.
DIAGNOSTIC AIDS
- Inspect the CKP sensor connector and the ECM connector for corrosion.
- With a DTC set, the engine may crank for an extended period of time at start-up.
CIRCUIT/SYSTEM VERIFICATION
If DTC P0641 or P0651 are set diagnose those DTCs first. 1. With the ignition OFF, inspect the
engine wiring harnesses carrying the CKP sensor circuits for the following conditions:
- Close routing of secondary ignition wires
- Close routing of aftermarket electrical equipment
- Close to solenoids, motors, and relays
- Correct any wire harness routing or component placement conditions, if it is determined to be a
possible source of electrical interference.
2. Start the engine. Using the Live Plot function on the scan tool, select the CMP parameter.
Change the minimum spec to 400 RPM, and the
maximum spec to 4,000 RPM. Select the CKP sensor parameter. Change the minimum spec to
600 RPM, and the maximum spec to 3,300 RPM.
3. Observe the scan tool. 4. Quickly accelerate and release the accelerator pedal several time. Do
not exceed 3,200 RPM. The graphed lines on the Live Plot display should
track together across the screen. If the vehicle passes the Circuit/System Verification test, operate the vehicle within the Conditions
for Running the DTC. You may also operate the vehicle within the conditions that are captured in
the Freeze Frame/Failure Records data list.
CIRCUIT/SYSTEM TESTING
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IMPORTANT: You must complete the Circuit/System Verification before proceeding with
Circuit/System Testing.
1. Disconnect the CKP sensor connector. 2. Test for less than 1 ohm of resistance between low
reference circuit and ground.
- If greater than the specified value, test the low reference circuit for an open/high resistance. If the
circuit tests normal, replace the ECM.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit and ground.
- If less than the specified range, test the 5-volt reference circuit for an open/high resistance or
short to ground. If the circuit tests normal, replace the ECM.
- If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the
circuit tests normal, replace the ECM.
4. Ignition ON, test for 4.8-5.2 volts between the signal circuit and ground.
- If less than the specified range, test signal circuit for an open/high resistance or short to ground. If
the circuit tests normal, replace the ECM.
- If greater than the specified range, test signal circuit for a short to voltage. If the circuit tests
normal, replace the ECM.
5. Ignition ON, using a jumper wire connected to ground, momentarily touch the CKP sensor signal
circuit repeatedly. The CKP Active Counter
parameter should increment. If the CKP Active Counter parameter does not increment, replace the ECM.
6. Ignition OFF, inspect the CKP sensor for looseness and correct installation 7. Touch the jumper
wire to the CKP sensor signal circuit repeatedly at the connector. The CKP Active Counter
parameter should increment.
- If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.
8. Inspect the engine for the following conditions:
- Engine oil for debris
- Crankshaft reluctor wheel for damage
- The timing chain, tensioner, and sprockets for wear or damage
- If debris is found in the engine oil, inspect the internal engine components to determine the cause.
Repair or replace any worn or damaged components.
COMPONENT TESTING
IMPORTANT: You must complete the Circuit/System Testing before proceeding with Component
Testing.
1. Remove the CKP sensor from the engine and inspect the sensor and the O-ring for damage. 2.
Connect the CKP Sensor connector to the CKP Sensor; turn ON the ignition, with the engine OFF.
3. Observe the CKP Active Counter parameter on the scan tool; pass a steel object by the tip of the
sensor repeatedly. The CKP Active Counter
parameter should increment. -
If the parameter does not increment, replace the CKP sensor.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Crankshaft Position Sensor Replacement for CKP sensor replacement
- Control Module References for ECM replacement, setup, and programming See: Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests and
Procedures See: Testing and Inspection/Programming and Relearning
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Crankshaft Position Sensor Replacement
Crankshaft Position Sensor: Service and Repair Crankshaft Position Sensor Replacement
CRANKSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting. 2. Disconnect the crankshaft position (CKP) sensor
electrical connector. 3. Remove the CKP sensor nut (2). 4. Remove the CKP sensor (1) from the
engine. 5. Inspect for wear, cracks, or leakage if the CKP sensor is being reused.
INSTALLATION PROCEDURE
1. Lubricate the O-ring with clean engine oil. Replace the O-rings if damaged.
2. Install the CKP sensor (1) to the block.
3. NOTE: Refer to Fastener Notice.
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Install the CKP sensor nut (1).
Tighten the nut to 11 N.m (97 lb in).
4. Connect the CKP sensor electrical connector. 5. Lower the vehicle.
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Crankshaft Position Sensor Replacement > Page 7193
Crankshaft Position Sensor: Service and Repair Crankshaft Position System Variation Learn
CRANKSHAFT POSITION SYSTEM VARIATION LEARN
IMPORTANT: The Crankshaft Position (CKP) system variation learn procedure is also required when the
following service procedures have been performed, regardless of whether DTC P0315 is set: An engine replacement
- A engine control module (ECM) replacement
- A crankshaft balancer replacement
- A crankshaft replacement
- A CKP sensor replacement
- Any engine repairs which disturb the crankshaft to CKP sensor relationship.
- The scan tool monitors certain component signals to determine if all the conditions are met to
continue with the CKP System Variation Learn Procedure. The scan tool only displays the condition
that inhibits the procedure. The scan tool monitors the following components: CKP sensors activity-If there is a CKP sensor condition, refer to the applicable DTC that set.
- Camshaft position (CMP) signal activity-If there is a CMP signal condition, refer to the applicable
DTC that set.
- Engine coolant temperature (ECT)-If the engine coolant temperature is not warm enough, idle the
engine until the engine coolant temperature reaches the correct temperature.
1. Install a scan tool. 2. Monitor the ECM for DTCs with a scan tool. If other DTCs are set, except
DTC P0315, refer to Diagnostic Trouble Code (DTC) List - Vehicle
for the applicable DTC that set. See: Testing and Inspection/Diagnostic Trouble Code Descriptions
3. With a scan tool, select the CKP System Variation Learn Procedure and perform the following:
1. Observe fuel cut-off for applicable engine. 2. Block drive wheels. 3. Set parking brake. 4. DO
NOT apply brake pedal. 5. Cycle ignition from OFF to ON. 6. Apply and hold brake pedal for the
duration of the procedure. 7. Start and idle engine. 8. Turn the air conditioning (A/C) OFF. 9. The
vehicle must remain in Park or Neutral.
10. IMPORTANT:
- The engine should not accelerate beyond the calibrated fuel cut-off RPM value noted in step 3.1.
Release the throttle immediately if the value is exceeded.
- While the learn procedure is in progress, release the throttle immediately when the engine starts
to decelerate. The engine control is returned to the operator and the engine responds to throttle
position after the learn procedure is complete.
Accelerate to wide open throttle (WOT) and release when the fuel cut-off occurs.
4. The scan tool displays Learn Status: Learned this Ignition. If the scan tool indicates that DTC
P0315 ran and passed, the CKP variation learn
procedure is complete. If the scan tool indicates DTC P0315 failed or did not run, refer to DTC
P0315. If any other DTCs set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the
applicable DTC. See: Testing and Inspection/Diagnostic Trouble Code Descriptions
5. Turn OFF the ignition for 30 seconds after the learn procedure is completed successfully in order
to store the CKP system variation values in the
ECM memory.
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Sensors and Switches Computers and Control Systems > Fuel Level Sensor > Component Information > Locations
Fuel Tank Components
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Sensors and Switches Computers and Control Systems > Fuel Level Sensor > Component Information > Service and Repair > Fuel Level Sensor
Replacement - Primary
Fuel Level Sensor: Service and Repair Fuel Level Sensor Replacement - Primary
FUEL LEVEL SENSOR REPLACEMENT - PRIMARY
REMOVAL PROCEDURE
1. IMPORTANT: NEW fuel tank module seals are necessary each time the fuel tank module is
serviced. Obtain NEW seals for both the
primary and secondary modules prior to beginning this service procedure.
IMPORTANT: There are 2 fuel level sender unit and float assemblies in the fuel tank. There is 1
located on each fuel pump module. The fuel level sender unit and float is NOT the same for each of
the fuel pump modules.
Remove the fuel tank.
2. Remove the fuel pump module. 3. Disconnect the fuel level sender unit and float electrical
connector from the underside of the top of the pump module. 4. Release the retaining tabs (1, 2)
and remove the level sensor by sliding up.
INSTALLATION PROCEDURE
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1. Install the fuel level sender unit and float onto the fuel pump module. Make sure that the sender
cap snaps into place (1, 2). 2. Connect the fuel level sender unit and float electrical connector. 3.
Install the fuel pump module into the fuel tank. 4. Install the fuel tank.
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Fuel Level Sensor: Service and Repair Fuel Level Sensor Replacement - Secondary
FUEL LEVEL SENSOR REPLACEMENT - SECONDARY
REMOVAL PROCEDURE
1. IMPORTANT: A NEW fuel tank module seal is necessary each time the fuel tank module is
serviced. Obtain a NEW seal prior to
beginning this service procedure.
IMPORTANT: There are 2 fuel level sender unit and float assemblies in the fuel tank. There is 1
located on each fuel pump module. The fuel level sender unit and float is NOT the same for each of
the fuel pump modules.
Remove the fuel tank. 2. Remove the fuel pump module. 3. Disconnect the fuel level sender unit
and the float electrical connector. 4. Release the retaining tabs and remove the level sensor by
sliding up.
INSTALLATION PROCEDURE
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1. Install the fuel level sender unit and float onto the fuel pump module. Make sure that the sender
cap snaps into place. 2. Connect the fuel level sender unit and the float electrical connector. 3.
Install the fuel pump module into the fuel tank. 4. Install the fuel tank.
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Sensors and Switches Computers and Control Systems > Fuel Tank Pressure Sensor > Component Information > Service and Repair
Fuel Tank Pressure Sensor: Service and Repair
FUEL TANK PRESSURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the fuel tank
2. Disconnect the fuel pump module harness electrical connector from the fuel tank pressure
sensor.
3. Position 2 flat-bladed screwdrivers, one on each side of the sensor, near the vacuum port. 4.
Carefully use the screwdrivers to lift and release the sensor from the fuel pump module.
INSTALLATION PROCEDURE
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1. Install the fuel tank pressure sensor to the fuel pump module assembly. Ensure that the sensor
grommet is fully seated to the pump module.
2. Connect the pump module electrical connector to the fuel tank pressure sensor. 3. Install the fuel
tank.
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Sensors and Switches Computers and Control Systems > Intake Air Temperature Sensor > Component Information > Locations
Air Induction Components
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Sensors and Switches Computers and Control Systems > Knock Sensor > Component Information > Locations
Knock Sensor: Locations
Front Of Engine
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Front Of The Engine
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Rear Of The Engine
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Instructions
Knock Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Knock Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Instructions > Page 7280
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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Instructions > Page 7281
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Instructions > Page 7283
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Instructions > Page 7303
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Instructions > Page 7306
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Instructions > Page 7309
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Instructions > Page 7310
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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Instructions > Page 7311
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Instructions > Page 7312
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Instructions > Page 7313
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Instructions > Page 7314
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Instructions > Page 7315
Knock Sensor: Connector Views
Knock Sensor 1
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Instructions > Page 7316
Knock Sensor 2
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Sensors and Switches Computers and Control Systems > Knock Sensor > Component Information > Service and Repair > Knock Sensor
Replacement - Bank 1
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 1
KNOCK SENSOR REPLACEMENT - BANK 1
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. If equipped with front wheel drive
(FWD), disconnect the engine wiring harness electrical connector (1) from the knock sensor.
3. If equipped with all wheel drive (AWD), disconnect the engine wiring harness electrical connector
(1) from the knock sensor.
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Replacement - Bank 1 > Page 7319
4. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
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Replacement - Bank 1 > Page 7320
2. If equipped with AWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor.
3. If equipped with FWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor. 4. Lower the vehicle.
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Replacement - Bank 1 > Page 7321
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 2
KNOCK SENSOR REPLACEMENT - BANK 2
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Disconnect the engine wiring harness
electrical connector (2) from the knock sensor.
3. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
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Replacement - Bank 1 > Page 7322
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
2. Connect the engine wiring harness electrical connector (2) to the knock sensor. 3. Lower the
vehicle.
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Rear Of The Engine
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Manifold Pressure/Vacuum Sensor: Service and Repair
MANIFOLD ABSOLUTE PRESSURE SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the manifold absolute pressure (MAP) sensor electrical connector.
2. Remove the MAP sensor retaining bolt (3) and bracket (2). 3. Remove the MAP sensor (1) and
the MAP sensor port seal if it is still retained in the intake manifold.
INSTALLATION PROCEDURE
1. Install the MAP sensor (1) to the intake manifold.
2. NOTE: Refer to Fastener Notice.
Install the MAP sensor retaining bracket (2) and bolt (3).
Tighten the bolt to 10 N.m (89 lb in).
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3. Connect the MAP sensor electrical connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Sensors and Switches Computers and Control Systems > Oil Pressure Sensor > Component Information > Service and Repair
Oil Pressure Sensor: Service and Repair
Engine Oil Pressure Sensor and/or Switch Replacement
Removal Procedure
1. Raise and support the vehicle.
2. Disconnect the oil pressure indicator switch electrical connector (2).
3. Remove the oil pressure indicator switch from the engine block.
Installation Procedure
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1. Apply sealer to the oil pressure indicator switch threads.
Notice: Refer to Component Fastener Tightening Notice.
2. Install the oil pressure indicator switch.
Tighten the switch to 16 N.m (12 lb ft).
3. Connect the oil pressure indicator switch electrical connector (2). 4. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Sensors and Switches Computers and Control Systems > Oxygen Sensor > Component Information > Locations
Oxygen Sensors
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Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Sensors and Switches Computers and Control Systems > Oxygen Sensor > Component Information > Diagrams > Diagram Information and
Instructions
Oxygen Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Instructions > Page 7337
Electrical Symbols Part 2
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Instructions > Page 7338
Electrical Symbols Part 3
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Instructions > Page 7339
Electrical Symbols Part 4
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Instructions > Page 7340
Electrical Symbols Part 5
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Instructions > Page 7341
Electrical Symbols Part 6
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Instructions > Page 7342
Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Oxygen Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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Instructions > Page 7356
- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Instructions > Page 7415
View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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Instructions > Page 7416
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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Instructions > Page 7417
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Instructions > Page 7419
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Instructions > Page 7427
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Instructions > Page 7429
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Oxygen Sensor: Connector Views
Heated Oxygen Sensor Bank 1 Sensor 1
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Heated Oxygen Sensor Bank 1 Sensor 2
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Oxygen Sensor Notice
Oxygen Sensor: Service Precautions Heated Oxygen and Oxygen Sensor Notice
Heated Oxygen and Oxygen Sensor Notice
Notice: Do not remove the pigtail from either the heated oxygen sensor (HO2S) or the oxygen
sensor (O2S). Removing the pigtail or the connector will affect sensor operation.
Handle the oxygen sensor carefully. Do not drop the HO2S. Keep the in-line electrical connector
and the louvered end free of grease, dirt, or other contaminants. Do not use cleaning solvents of
any type.
Do not repair the wiring, connector or terminals. Replace the oxygen sensor if the pigtail wiring,
connector, or terminal is damaged.
This external clean air reference is obtained by way of the oxygen sensor signal and heater wires.
Any attempt to repair the wires, connectors, or terminals could result in the obstruction of the air
reference and degraded sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor:
* Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors.
These materials may get into the sensor causing poor performance.
* Do not damage the sensor pigtail and harness wires in such a way that the wires inside are
exposed. This could provide a path for foreign materials to enter the sensor and cause
performance problems.
* Ensure the sensor or vehicle lead wires are not bent sharply or kinked. Sharp bends or kinks
could block the reference air path through the lead wire.
* Do not remove or defeat the oxygen sensor ground wire, where applicable. Vehicles that utilize
the ground wired sensor may rely on this ground as the only ground contact to the sensor.
Removal of the ground wire will cause poor engine performance.
* Ensure that the peripheral seal remains intact on the vehicle harness connector in order to
prevent damage due to water intrusion. The engine harness may be repaired using Packard's
Crimp and Splice Seals Terminal Repair Kit. Under no circumstances should repairs be soldered
since this could result in the air reference being obstructed.
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Oxygen Sensor Notice > Page 7440
Oxygen Sensor: Service Precautions Silicon Contamination of Heated Oxygen Sensors Notice
Silicon Contamination of Heated Oxygen Sensors Notice
Notice: Contamination of the oxygen sensor can result from the use of an inappropriate RTV
sealant (not oxygen sensor safe) or excessive engine coolant or oil consumption. Remove the
HO2S and visually inspect the portion of the sensor exposed to the exhaust stream in order to
check for contamination. If contaminated, the portion of the sensor exposed to the exhaust stream
will have a white powdery coating. Silicon contamination causes a high but false HO2S signal
voltage (rich exhaust indication). The control module will then reduce the amount of fuel delivered
to the engine, causing a severe driveability problem. Eliminate the source of contamination before
replacing the oxygen sensor.
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Oxygen Sensor: Service Precautions Heated Oxygen Sensor Resistance Learn Reset Notice
Heated Oxygen Sensor Resistance Learn Reset Notice
Notice: When replacing the HO2S perform the following:
* A code clear with a scan tool, regardless of whether or not a DTC is set
* HO2S heater resistance learn reset with a scan tool, where available
Perform the above in order to reset the HO2S resistance learned value and avoid possible HO2S
failure.
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Sensor 1 Replacement
Oxygen Sensor: Service and Repair Heated Oxygen Sensor 1 Replacement
HEATED OXYGEN SENSOR 1 REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the HO2S 1 harness connector. 2. Remove the HO2S 1 from the exhaust manifold.
INSTALLATION PROCEDURE
1. NOTE: Silicone based products will contaminate the HO2S. Use only a nickel based anti-seize
compound that does not contain silicone.
Apply a small amount of anti-seize compound to the threads of the HO2S 2.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the HO2S 1 to the exhaust manifold.
Tighten the HO2S 1 to 42 N.m (31 lb ft).
3. Connect the HO2S 1 harness connector. Push in the connector until a click is heard and pull
back to confirm a positive engagement.
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Oxygen Sensor: Service and Repair Heated Oxygen Sensor 2 Replacement
HEATED OXYGEN SENSOR 2 REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Disconnect the HO2S 2 harness connector (3).
3. IMPORTANT: Silicone based products will contaminate the HO2S. DO NOT use products
containing silicone on or near the HO2S.
Use a liquid penetrate before removing the sensor.
4. Remove the HO2S 2 (2) from the exhaust pipe.
INSTALLATION PROCEDURE
1. NOTE: Silicone based products will contaminate the HO2S. Use only a nickel based anti-seize
compound that does not contain silicone.
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Apply a small amount of anti-seize compound to the threads of the HO2S 2.
2. NOTE: Refer to Component Fastener Tightening Notice.
Install the HO2S 2 (2).
Tighten the HO2S 2 to 42 N.m (31 lb ft).
3. Connect the HO2S 2 harness connector (3). Push in the connector until a click is heard, then pull
back to confirm a positive engagement. 4. Ensure the HO2S 2 harness pigtail connector is secure
to the chassis.
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Throttle Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Throttle Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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and Instructions > Page 7540
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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and Instructions > Page 7545
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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and Instructions > Page 7547
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and Instructions > Page 7548
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Sensors and Switches Computers and Control Systems > Transmission Position Switch/Sensor, A/T > Component Information > Locations
Transmission Position Switch/Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
75 - Park/Neutral Position Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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7552
Transmission Position Switch/Sensor: Adjustments
Transaxle Range Switch Adjustment
Tools Required
* J 36346 Fascia Retainer Remover
* J 45404 Transmission Indicator Alignment Tool
1. Remove the battery tray. 2. Shift the transaxle into neutral (N) position.
3. Using the J 36346, remove the shift control cable from the transaxle range switch lever.
4. Loosen the transaxle range switch bolt (2) and stud (1).
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5. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
on the J 45404.
Notice: Refer to Fastener Notice.
6. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
7. Remove the J 45404 from the manual shaft. 8. Install the shift control cable to the transaxle
range switch lever. 9. Install the battery tray.
10. After adjusting the transaxle range switch, verify the engine only starts in park (P) or neutral
(N). If the engine starts in any other position, readjust
the switch.
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Repair > Transaxle Range Switch Lever Replacement
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Lever
Replacement
Transaxle Range Switch Lever Replacement
Tools Required
J 36346 Fascia Retainer Remover
Removal Procedure
1. Remove the battery tray.
2. Using the J 36346, disconnect the shift control cable from the transaxle range switch lever.
3. Remove the transaxle range switch lever nut and lever.
Installation Procedure
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Notice: Refer to Fastener Notice.
1. Install the transaxle range switch lever and lever nut.
Tighten the nut to 16 N.m (12 lb ft).
2. Install the shift control cable end fitting onto the ball stud of the transaxle range switch lever. An
audible snap will be heard when properly
installed.
3. Install the battery tray.
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Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Replacement
Transaxle Range Switch Replacement
Tools Required
J 45404 Transmission Indicator Alignment Tool
Removal Procedure
1. Remove the battery tray.
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
switch.
2. Apply the parking brake and place control shift lever in neutral (N). 3. Remove the transaxle
range switch lever.
4. Disconnect the electrical connectors (3, 5) from the transaxle range switch.
5. Using a screwdriver, bend the lockwasher tabs down away from the manual shaft nut.
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6. Remove the nut, lock tab washer, and flat washer.
7. Remove the transaxle range switch bolt (2), stud (1), and flat washers. 8. Remove the transaxle
range switch (3).
Installation Procedure
1. Install the transaxle range switch (3) to the manual shaft lever. 2. Install the washer stud (1) and
the bolt (2). Hand tighten ONLY at this time.
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Notice: Refer to Fastener Notice.
3. Install the flat washer, lock tab washer, and nut.
Tighten the nut to 7 N.m (62 lb in).
4. Ensure the manual shaft is in neutral (N) position.
5. Bend the lock washer tabs up to secure the nut.
6. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
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on the J 45404.
7. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
8. Remove the J 45404 from the manual shaft.
9. Connect the electrical connectors (3, 5) to the transaxle range switch.
10. Install the transaxle range switch lever. 11. Install the battery tray. 12. After installing and
adjusting the switch, verify the engine only starts in park (P) or neutral (N). If the engine starts in
any other position, readjust
the switch. Refer to Transaxle Range Switch Adjustment.
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Component Information > Diagrams > Diagram Information and Instructions
Throttle Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Throttle Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 7647
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Component Information > Diagrams > Diagram Information and Instructions > Page 7655
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7656
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7657
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7658
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7659
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7660
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7661
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7662
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7663
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Transmission Position
Switch/Sensor, A/T > Component Information > Locations
Transmission Position Switch/Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
75 - Park/Neutral Position Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Transmission Position
Switch/Sensor, A/T > Component Information > Locations > Page 7667
Transmission Position Switch/Sensor: Adjustments
Transaxle Range Switch Adjustment
Tools Required
* J 36346 Fascia Retainer Remover
* J 45404 Transmission Indicator Alignment Tool
1. Remove the battery tray. 2. Shift the transaxle into neutral (N) position.
3. Using the J 36346, remove the shift control cable from the transaxle range switch lever.
4. Loosen the transaxle range switch bolt (2) and stud (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Transmission Position
Switch/Sensor, A/T > Component Information > Locations > Page 7668
5. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
on the J 45404.
Notice: Refer to Fastener Notice.
6. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
7. Remove the J 45404 from the manual shaft. 8. Install the shift control cable to the transaxle
range switch lever. 9. Install the battery tray.
10. After adjusting the transaxle range switch, verify the engine only starts in park (P) or neutral
(N). If the engine starts in any other position, readjust
the switch.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Lever
Replacement
Transaxle Range Switch Lever Replacement
Tools Required
J 36346 Fascia Retainer Remover
Removal Procedure
1. Remove the battery tray.
2. Using the J 36346, disconnect the shift control cable from the transaxle range switch lever.
3. Remove the transaxle range switch lever nut and lever.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page
7671
Notice: Refer to Fastener Notice.
1. Install the transaxle range switch lever and lever nut.
Tighten the nut to 16 N.m (12 lb ft).
2. Install the shift control cable end fitting onto the ball stud of the transaxle range switch lever. An
audible snap will be heard when properly
installed.
3. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page
7672
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Replacement
Transaxle Range Switch Replacement
Tools Required
J 45404 Transmission Indicator Alignment Tool
Removal Procedure
1. Remove the battery tray.
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
switch.
2. Apply the parking brake and place control shift lever in neutral (N). 3. Remove the transaxle
range switch lever.
4. Disconnect the electrical connectors (3, 5) from the transaxle range switch.
5. Using a screwdriver, bend the lockwasher tabs down away from the manual shaft nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page
7673
6. Remove the nut, lock tab washer, and flat washer.
7. Remove the transaxle range switch bolt (2), stud (1), and flat washers. 8. Remove the transaxle
range switch (3).
Installation Procedure
1. Install the transaxle range switch (3) to the manual shaft lever. 2. Install the washer stud (1) and
the bolt (2). Hand tighten ONLY at this time.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page
7674
Notice: Refer to Fastener Notice.
3. Install the flat washer, lock tab washer, and nut.
Tighten the nut to 7 N.m (62 lb in).
4. Ensure the manual shaft is in neutral (N) position.
5. Bend the lock washer tabs up to secure the nut.
6. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Computers and Control Systems > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page
7675
on the J 45404.
7. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
8. Remove the J 45404 from the manual shaft.
9. Connect the electrical connectors (3, 5) to the transaxle range switch.
10. Install the transaxle range switch lever. 11. Install the battery tray. 12. After installing and
adjusting the switch, verify the engine only starts in park (P) or neutral (N). If the engine starts in
any other position, readjust
the switch. Refer to Transaxle Range Switch Adjustment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Catalytic Converter > Component
Information > Technical Service Bulletins > Exhaust System - Catalytic Converter Precautions
Catalytic Converter: Technical Service Bulletins Exhaust System - Catalytic Converter Precautions
Bulletin No.: 06-06-01-010A
Date: February 04, 2008
INFORMATION
Subject: Information on Close-Coupled Converter and Engine Breakdown or Non-Function Due to
Severe Overheat or Lack of Oil Causing Piston(s) Connecting Rod(s) Crankshaft Cylinder(s) and/or
Head(s) Camshaft(s) Intake and/or Exhaust Valve(s) Main and/or Rod Bearing(s) Damage
Models: 2004-2008 GM Passenger Cars and Trucks
with Close-Coupled Catalytic Converters
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
06-06-01-010 (Section 06 - Engine/Propulsion System).
Certain 2004-2008 General Motors products may be equipped with a new style of catalytic
converter technically known as the close-coupled catalytic converter providing quick catalyst
warm-up resulting in lower tail pipe emissions earlier in the vehicle operating cycle.
If an engine breakdown or non-function were to occur (such as broken intake/exhaust valve or
piston) debris may be deposited in the converter through engine exhaust ports. If the engine is
non-functioning due to a severe overheat event damage to the ceramic "brick" internal to the
catalytic converter may occur. This may result in ceramic debris being drawn into the engine
through the cylinder head exhaust ports.
If a replacement engine is installed in either of these instances the replacement engine may fail
due to the debris being introduced into the combustion chambers when started.
When replacing an engine for a breakdown or non-function an inspection of the catalytic converters
and ALL transferred components (such as exhaust/ intake manifolds) should be performed. Any
debris found should be removed. In cases of engine failure due to severe overheat dealers should
also inspect each catalytic converter for signs of melting or cracking of the ceramic "brick". If
damage is observed the converter should be replaced.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Catalytic Converter > Component
Information > Technical Service Bulletins > Page 7681
Catalytic Converter: Service Precautions
Three-Way Catalytic Converter Damage Notice
Notice: In order to avoid damaging the replacement three-way catalytic converter, correct the
engine misfire or mechanical fault before replacing the three-way catalytic converter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Catalytic Converter > Component
Information > Technical Service Bulletins > Page 7682
Catalytic Converter: Service and Repair
Catalytic Converter Replacement
Removal Procedure
1. Raise and suitably support the vehicle.
2. Disconnect the heated oxygen sensor (HO2S) connector (2) from the wiring harness (3).
3. Remove the catalytic converter pipe flange to exhaust system pipe flange nuts. 4. Separate the
pipes and discard the gasket.
Important: Catalytic converter flex coupler must NEVER be deflected more than 6 degrees or
failure of flex coupler could result.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Catalytic Converter > Component
Information > Technical Service Bulletins > Page 7683
5. Remove the nuts (3) securing the catalytic converter (4) to the exhaust manifold. 6. Separate the
catalytic converter flange from the exhaust manifold and discard the gasket (2).
7. Separate the catalytic converter hanger from the rubber isolator and remove the catalytic
converter from the vehicle.
8. Remove the exhaust manifold studs (1) if worn or damaged. 9. If replacing the catalytic
converter, remove the HO2S.
Installation Procedure
1. Install the HO2S, if previously removed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Catalytic Converter > Component
Information > Technical Service Bulletins > Page 7684
Notice: Refer to Fastener Notice .
2. Install the exhaust manifold studs (1) if previously removed.
Tighten the studs to 6 N.m (53 lb in).
3. Install the rubber isolator and to the catalytic converter hanger.
Notice: To prevent internal damage to the flexible coupling of the catalytic converter assembly, the
converter must be supported. The vertical movement at the rear of the catalytic converter assembly
must not exceed 6 degrees up or down.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Catalytic Converter > Component
Information > Technical Service Bulletins > Page 7685
4. Install a new gasket (2) and attach the catalytic converter (4) to the exhaust manifold. 5. Install
the catalytic converter to the exhaust manifold nuts (3).
Tighten the nuts to 37 N.m (27 lb ft).
6. Install a new exhaust pipe flange gasket to the catalytic converter flange. 7. Install the exhaust
pipe to the catalytic converter pipe. with the catalytic converter nuts. 8. Install the exhaust pipe to
the catalytic converter pipe .
Tighten the nuts to 37 N.m (27 lb ft).
9. Connect the HO2S connector (2) to the wiring harness (3).
10. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Canister Purge Solenoid > Component Information > Locations
Front Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Canister Purge Solenoid > Component Information > Locations > Page 7690
Canister Purge Solenoid: Service and Repair
EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VALVE REPLACEMENT
REMOVAL PROCEDURE
1. Turn OFF the ignition. 2. Disconnect the evaporative emission (EVAP) canister purge solenoid
valve electrical connector. 3. Disconnect the EVAP canister purge solenoid valve hose/pipe.
4. Remove the EVAP canister purge solenoid valve retaining bolt (2). 5. Remove the EVAP
canister purge solenoid valve (1) from the intake manifold.
INSTALLATION PROCEDURE
1. Position the EVAP canister purge solenoid valve (1) on the intake manifold.
2. NOTE: Refer to Fastener Notice.
install the EVAP canister purge solenoid valve bolt (2).
Tighten the EVAP canister purge valve retaining bolt to 10 N.m (89 lb in).
3. Connect the EVAP canister purge solenoid valve hose/pipe. 4. Connect the EVAP canister purge
solenoid valve electrical connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Evaporative Canister Filter > Component Information > Service and Repair
Evaporative Canister Filter: Service and Repair
EVAPORATIVE EMISSION CANISTER FILTER REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: The evaporative emission (EVAP) canister filter cover must also be replaced
when the EVAP filter is replaced to ensure
proper operation of the EVAP canister.
Raise and support the vehicle. Refer to Vehicle Lifting .
2. Remove the EVAP canister from the vehicle.
3. Carefully release the canister filter cover rear retaining tabs. 4. Carefully release the canister
filter cover forward retaining tabs and remove the cover from the EVAP canister. 5. Discard the
EVAP canister filter cover.
6. Remove the filter from the canister and discard the filter. 7. Clean the inside of the EVAP
canister filter housing with a clean
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Evaporative Canister Filter > Component Information > Service and Repair > Page 7694
1. Install a NEW filter to the canister filter housing.
2. IMPORTANT: Ensure that the seal is properly seated in the NEW EVAP filter cover.
Install a NEW EVAP filter cover to the EVAP canister.
3. Install the EVAP canister to the vehicle. 4. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Evaporative Emission Control Canister > Component Information > Service and Repair
Evaporative Emission Control Canister: Service and Repair
EVAPORATIVE EMISSION CANISTER REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: The EVAP emissions canister is located under the center of the vehicle. It has 3
EVAP line connections:
- The EVAP fresh air
- The EVAP vent
- The EVAP purge
Raise the vehicle on a hoist. Refer to Vehicle Lifting.
2. NOTE: Clean all fuel pipe connections and surrounding areas before disconnecting the fuel
pipes to avoid contamination of the fuel system.
Disconnect the EVAP canister fresh air hose/pipe from the fuel tank fresh air hose/pipe (2).
3. Disconnect the EVAP canister vent hose/pipe from the EVAP canister.
4. Disconnect the EVAP canister purge hose/pipe (1) from the EVAP canister. 5. Remove the
EVAP canister-to-underbody nuts (3). 6. Lower the EVAP canister (4).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Evaporative Emission Control Canister > Component Information > Service and Repair > Page 7698
7. Disconnect the EVAP vent solenoid electrical connector (1). 8. Remove the EVAP canister (4)
from the vehicle.
INSTALLATION PROCEDURE
1. Connect the EVAP vent solenoid electrical connector (1). 2. Install the EVAP canister (4) to the
underbody of the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Evaporative Emission Control Canister > Component Information > Service and Repair > Page 7699
3. NOTE: Refer to Fastener Notice.
Install the EVAP canister-to-underbody nuts (3).
Tighten the nuts to 9 N.m (80 lb in).
4. Connect the EVAP canister purge hose/pipe (1) to the EVAP canister (4).
5. Connect the EVAP canister vent hose/pipe (3) to the EVAP canister. 6. Connect the EVAP
canister fresh air hose/pipe to the fuel tank fresh air hose/pipe (2). 7. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Evaporative Emissions Hose > Component Information > Service and Repair > Evaporative Emission (EVAP) Hoses/Pipes
Replacement - Engine
Evaporative Emissions Hose: Service and Repair Evaporative Emission (EVAP) Hoses/Pipes
Replacement - Engine
EVAPORATIVE EMISSION HOSES/PIPES REPLACEMENT - ENGINE
REMOVAL PROCEDURE
1. Remove the generator.
2. Remove the nuts (1) securing the evaporative emission (EVAP) hose/pipe (2) to the strut tower.
3. Disconnect the EVAP purge hose/pipe (2) from the purge solenoid.
4. Disconnect the engine EVAP purge hose/pipe from the chassis EVAP purge hose/pipe. 5. Cap
or plug both the engine and chassis EVAP purge hose/pipes to prevent contamination.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Evaporative Emissions Hose > Component Information > Service and Repair > Evaporative Emission (EVAP) Hoses/Pipes
Replacement - Engine > Page 7704
6. Remove the EVAP hose/pipe (2) from the retainer (3). 7. Remove the EVAP hose/pipe (2) from
the vehicle.
INSTALLATION PROCEDURE
1. Install the EVAP hose/pipe (2) to the vehicle. 2. Install the EVAP hose/pipe (2) to the retainer (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Evaporative Emissions Hose > Component Information > Service and Repair > Evaporative Emission (EVAP) Hoses/Pipes
Replacement - Engine > Page 7705
3. Remove the caps or plugs from both the engine and chassis EVAP purge hose/pipes. 4.
Connect the engine EVAP purge hose/pipe to the chassis EVAP purge hose/pipe.
5. Connect the EVAP purge hose/pipe (2) to the purge solenoid.
6. NOTE: Refer to Fastener Notice.
Install the nuts (1) securing the evaporative emission EVAP hose/pipe (2) to the strut tower.
Tighten the nuts to 10 N.m (89 lb in).
7. Install the generator.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Evaporative Emissions Hose > Component Information > Service and Repair > Evaporative Emission (EVAP) Hoses/Pipes
Replacement - Engine > Page 7706
Evaporative Emissions Hose: Service and Repair Evaporative Emission (EVAP) Hoses/Pipes
Replacement - Engine/Chassis
EVAPORATIVE EMISSION HOSES/PIPES REPLACEMENT - ENGINE/CHASSIS
REMOVAL PROCEDURE
CAUTION:
- Do not allow smoking or the use of open flames in the area where work on the fuel or EVAP
system is taking place. Anytime work is being done on the fuel system, disconnect the negative
battery cable, except for those tests where battery voltage is required.
- Whenever fuel lines are removed, catch fuel in an approved container. Container opening must
be a minimum of 300 mm (12 in) diameter to adequately catch the fluid.
NOTE: Fuel/Vapor lines cannot be spliced or repaired. The line must be replaced (if damaged) with
the same type of line.
1. Disconnect the engine evaporative emission (EVAP) purge hose/pipe from the chassis EVAP
purge hose/pipe. 2. Cap or plug both the engine and chassis EVAP purge hose/pipes to prevent
contamination.
3. Raise and support the vehicle. Refer to Vehicle Lifting. 4. Disconnect the EVAP purge hose/pipe
from the EVAP canister. 5. Cap or plug both the EVAP purge hose/pipe and canister to prevent
contamination.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Evaporative Emissions Hose > Component Information > Service and Repair > Evaporative Emission (EVAP) Hoses/Pipes
Replacement - Engine > Page 7707
6. Release the pipe retainers (1) from the vehicle underbody. 7. Remove the purge pipe from the
pipe retainers. 8. Remove the purge pipe from the vehicle.
INSTALLATION PROCEDURE
1. Position the purge pipe to the vehicle. 2. Install the purge pipe to the pipe retainers. 3. Secure
the pipe retainers (1) to the vehicle underbody.
4. Remove the caps or plugs from both the EVAP purge hose/pipe and canister. 5. Connect the
EVAP purge hose/pipe to the EVAP canister. 6. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Evaporative Emissions System >
Evaporative Emissions Hose > Component Information > Service and Repair > Evaporative Emission (EVAP) Hoses/Pipes
Replacement - Engine > Page 7708
7. Remove the caps or plugs from both the engine and chassis EVAP purge hose/pipes. 8.
Connect the engine EVAP purge hose/pipe to the chassis EVAP purge hose/pipe.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Exhaust Gas Recirculation > EGR
Tube > Component Information > Service and Repair
EGR Tube: Service and Repair
EXHAUST GAS RECIRCULATION PIPE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. Remove the bolt (3) retaining the exhaust gas recirculation (EGR) pipe (4) to the EGR valve (1).
3. Remove the 2 bolts (5) securing the EGR pipe (4) to the exhaust manifold. 4. Remove the EGR
pipe (4). 5. Remove the EGR pipe to exhaust manifold gasket.
INSTALLATION PROCEDURE
1. Install the EGR pipe to exhaust manifold gasket. 2. Install the EGR pipe (4).
3. NOTE: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Exhaust Gas Recirculation > EGR
Tube > Component Information > Service and Repair > Page 7713
Install the 2 bolts (5) that secure the EGR pipe (4) to exhaust manifold.
Tighten the bolts to 10 N.m (89 lb in).
4. Install the bolt (3) the secures the EGR pipe (4) bolt to the EGR valve (1).
Tighten the bolt to 30 N.m (22 lb ft).
5. Install the injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Exhaust Gas Recirculation > EGR
Valve > Component Information > Diagrams
Exhaust Gas Recirculation (EGR) Valve
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Exhaust Gas Recirculation > EGR
Valve > Component Information > Diagrams > Page 7717
EGR Valve: Service and Repair
EXHAUST GAS RECIRCULATION VALVE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the exhaust gas recirculation (EGR) pipe (4). 2. Disconnect the EGR valve electrical
connector. 3. Remove the EGR valve bolts (2). 4. Remove the EGR valve (1). 5. Remove the EGR
valve gasket. 6. Clean the EGR valve mating surface.
INSTALLATION PROCEDURE
1. Install the EGR valve (1) with a new gasket to the intake manifold.
2. NOTE: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Exhaust Gas Recirculation > EGR
Valve > Component Information > Diagrams > Page 7718
Install the EGR valve bolts (2).
Tighten the bolts to 30 N.m (22 lb ft).
3. Connect the EGR valve electrical connector. 4. Install the EGR pipe (4).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Positive Crankcase Ventilation >
PCV Valve Hose > Component Information > Service and Repair
PCV Valve Hose: Service and Repair
Crankcase Ventilation Hoses/Pipes Replacement
Removal Procedure
1. Remove the fuel injector sight shield.
2. Disconnect the positive crankcase ventilation (PVC) fresh air pipe (1) from the air cleaner duct.
3. Remove the ignition control module bracket.
4. Disconnect the PVC fresh air pipe (1) from the valve cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Positive Crankcase Ventilation >
PCV Valve Hose > Component Information > Service and Repair > Page 7723
5. Disconnect the PVC foul air pipe (4) from the PVC valve. 6. Remove the PVC foul air pipe
retaining clip (2) and bolt (3) from the intake manifold. 7. Disconnect the PVC foul air pipe (4) from
the intake manifold.
Installation Procedure
1. Connect the PVC foul air pipe (4) to the intake manifold.
Notice: Refer to Fastener Notice .
2. Install the PVC foul air pipe retaining clip (2) and bolt (3) to the intake manifold.
Tighten the bolt to 10 N.m (89 lb in).
3. Connect the PVC foul air pipe (4) to the PVC valve.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Positive Crankcase Ventilation >
PCV Valve Hose > Component Information > Service and Repair > Page 7724
4. Connect the PVC fresh air pipe (1) to the valve cover. 5. Install the ignition control module
bracket.
6. Connect the PVC fresh air pipe (1) to the air cleaner duct. 7. Install the fuel injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Positive Crankcase Ventilation >
Positive Crankcase Ventilation Valve > Component Information > Service and Repair
Positive Crankcase Ventilation Valve: Service and Repair
Positive Crankcase Ventilation Valve Replacement
Removal Procedure
Important: The PCV valve is not removable from the valve rocker arm cover. The PCV valve and
rocker arm cover must be replaced as an assembly.
1. Remove the left valve rocker arm cover.
2. Remove the screws (1) from the PCV baffle. 3. Remove the PCV baffle (2). 4. Clean the PCV
valve (3) or replace the valve cover (4).
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Emission Control Systems > Positive Crankcase Ventilation >
Positive Crankcase Ventilation Valve > Component Information > Service and Repair > Page 7728
1. Install the PCV baffle (2).
Notice: Refer to Fastener Notice .
2. Install the PCV baffle screws (1).
Tighten the screws to 6 N.m (53 lb in).
3. Install the left valve rocker arm cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pressure > System
Information > Specifications
Fuel Pressure: Specifications
Fuel Pressure (Key ON, Engine OFF)..................................................................................................
..............................................384-425 kPa (56-62 psi)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pressure > System
Information > Specifications > Page 7733
Fuel Pressure: Service Precautions
Relieving Fuel Pressure Caution
Caution: Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel
system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a
small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pressure > System
Information > System Diagnosis > Fuel Pressure Gage Installation and Removal
Fuel Pressure: Testing and Inspection Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pressure > System
Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 7736
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pressure > System
Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 7737
Fuel Pressure: Testing and Inspection Fuel System Diagnosis
FUEL SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
CIRCUIT/SYSTEM DESCRIPTION
The control module enables the fuel pump relay when the ignition switch is turned ON. The control
module will disable the fuel pump relay within 2 seconds unless the control module detects ignition
reference pulses. The control module continues to enable the fuel pump relay as long as ignition
reference pulses are detected. The control module disables the fuel pump relay within 2 seconds if
ignition reference pulses cease to be detected and the ignition remains ON.The fuel system is a
returnless on-demand design. The fuel pressure regulator is a part of the primary fuel tank module,
eliminating the need for a return pipe from the engine. A returnless fuel system reduces the internal
temperature of the fuel tank by not returning hot fuel from the engine to the fuel tank. Reducing the
internal temperature of the fuel tank results in lower evaporative emissions. An electric turbine style
fuel pump attaches to the primary fuel tank module inside the fuel tank. The fuel pump supplies
high pressure fuel through the fuel filter, past the fuel pressure regulator, and through the fuel feed
pipe to the fuel injection system. The fuel pressure regulator has a T-joint that diverts the needed
fuel to the fuel rail with the unused fuel dropping back into the reservoir of the primary fuel tank
module. The primary fuel tank module contains a reverse flow check valve. The check valve and
the fuel pressure regulator maintain fuel pressure in the fuel feed pipe and the fuel rail in order to
prevent long cranking times. The primary fuel tank module also contains a primary jet pump and a
secondary jet pump. Fuel pump flow loss, caused by vapor expulsion in the pump inlet chamber, is
diverted to the primary jet pump and the secondary jet pump through a restrictive orifice located on
the pump cover. The primary jet pump fills the reservoir of the primary fuel tank module. The
secondary jet pump creates a venturi action which causes the fuel to be drawn from the secondary
side of the fuel tank, through the fuel transfer pipe, to the primary side of the fuel tank.
CIRCUIT/SYSTEM VERIFICATION
IMPORTANT: Inspect the fuel system for damage or external leaks before proceeding.
- Verify that adequate fuel is in the fuel tank before proceeding.
- The fuel pump relay may need to be commanded ON a few times in order to obtain the highest
possible fuel pressure.
- Before proceeding with this test review the User Manual CH 48027-5 for Safety Information and
Instructions.
1. Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool. You should hear
the fuel pump turn ON and OFF.
- If the fuel pump does not operate, refer to Fuel Pump Electrical Circuit Diagnosis. See:
Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics
2. Ignition OFF, all accessories OFF, install a CH-48027. 3. Ignition ON, engine OFF, command the
fuel pump relay ON with a scan tool. Verify the fuel pressure is between 384-425 kPa (56-62 psi)
and
does not decrease more than 34 kPa (5 psi) in 1 minute.
CIRCUIT/SYSTEM TESTING
1. IMPORTANT:
- The fuel pump relay may need to be commanded ON a few times in order to obtain the highest
possible fuel pressure.
- DO NOT start the engine.
Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool and observe the fuel
pressure gage while the fuel pump is operating. Verify the fuel pressure is between 384-425 kPa
(56-62 psi). If the fuel pressure is greater than the specified range, replace the fuel pump module.
- If the fuel pressure is less than the specified range, test, inspect, and repair the items listed
below. If all items test normal, replace the fuel pump module.
- Restricted fuel feed pipe
- Restricted or plugged strainer
- Inspect the harness connectors and the ground circuits of the fuel pump for poor connections.
2. Verify that the fuel pressure does not decrease more than 34 kPa (5 psi) in 1 minute.
1. If the fuel pressure decreases more than the specified value, perform the following procedure: 2.
Ignition OFF, relieve the fuel pressure. Refer to Fuel Pressure Relief. See: Fuel Filter/Fuel
Pressure Release/Service and Repair 3. Install the J 37287 between the fuel feed pipe and the fuel
rail. 4. Open the valve on the J 37287. 5. Ignition ON, command the fuel pump relay ON with a
scan tool and bleed the air from the CH-48027. 6. Command the fuel pump relay ON and then OFF
with a scan tool. 7. Close the valve on the J 37287. 8. Monitor the fuel pressure for 1 minute.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pressure > System
Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 7738
- If the fuel pressure decreases more than 34 kPa (5 psi) within the specified time, locate and
replace the leaking fuel injector(s).
- If the fuel pressure does not decrease more than 34 kPa (5 psi) within the specified time, replace
the fuel pump module.
3. Relieve the fuel pressure to 69 kPa (10 psi). Verify that the fuel pressure does not decrease
more than 14 kPa (2 psi) in 5 minutes.
- If the fuel pressure decreases more than the specified value, replace the primary fuel pump
module.
4. Operate the vehicle within the conditions of the customer's concern while monitoring the fuel
pressure with the CH-48027. The fuel pressure
should not drop off during acceleration, cruise or hard cornering. If the fuel pressure drops off, test, inspect, and repair the items listed below. If all items test normal,
replace the primary fuel pump module.
- Restricted fuel feed pipe
- Restricted or plugged strainer
- Inspect the harness connectors and the ground circuits of the fuel pump for poor connections
5. If the fuel system tests normal, refer to Symptoms - Computers and Control Systems. See:
Computers and Control Systems/Testing and
Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine Controls
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Fuel Hose/Pipes Replacement - Chassis
- Fuel Injector Replacement
- Fuel Hose/Pipes Replacement - Engine Compartment
- Primary Fuel Tank Module Replacement See: Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests and
Procedures
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pressure Release >
System Information > Service and Repair > Fuel Pressure Relief
Fuel Pressure Release: Service and Repair Fuel Pressure Relief
FUEL PRESSURE RELIEF
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
WITH CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Remove the engine cover, if required. 2. Loosen the fuel fill cap in order to relieve the fuel tank
vapor pressure. 3. Remove the fuel rail service port cap.
4. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel will
absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
5. Connect the CH-48027-3 (4) to the fuel rail service port. 6. Connect the CH-48027-2 (2) to the
CH-48027-3 (4). 7. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 8.
Open the valve on the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 9. Close the
valve on the CH-48027-2 (2).
10. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
IMPORTANT: If relieving the fuel pressure for the fuel pressure gage installation and removal, it is
NOT necessary to proceed with the following steps.
11. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pressure Release >
System Information > Service and Repair > Fuel Pressure Relief > Page 7743
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-2 (2) from the CH-48027-3 (4).
12. Disconnect the CH-48027-3 (4) from the fuel rail service port. 13. Remove the shop towel from
around the fuel rail service port, and place in an approved gasoline container. 14. Install the fuel rail
service port cap. 15. Install the engine cover, if required. 16. Tighten the fuel fill cap.
WITHOUT CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure. 2. Remove the engine
cover, if required. 3. Remove the fuel rail service port cap. 4. Wrap a shop towel around the fuel rail
service port and using a small flat bladed tool, depress (open) the fuel rail test port valve. 5.
Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container. 6. Install the fuel rail service port cap. 7. Install the engine cover, if required. 8. Tighten
the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pressure Release >
System Information > Service and Repair > Fuel Pressure Relief > Page 7744
Fuel Pressure Release: Service and Repair Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pressure Release >
System Information > Service and Repair > Fuel Pressure Relief > Page 7745
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Idle Speed > System
Information > Specifications
Idle Speed: Specifications
Information not supplied by the manufacturer.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Accelerator Pedal Position
Sensor > Component Information > Locations
Pedal Assemblies
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Accelerator Pedal Position
Sensor > Component Information > Locations > Page 7752
Accelerator Pedal Position Sensor: Service and Repair
ACCELERATOR PEDAL POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the instrument panel left lower closeout panel.
2. Remove the connector position assurance (CPA) from the accelerator pedal position (APP)
sensor connector. 3. Disconnect the APP sensor harness connector.
4. IMPORTANT: Due to clearance issues, the upper attachment bolt cannot be removed from the
accelerator pedal assembly. Loose then
bolt completely and leave the bolt in the component until the assembly is removed from the vehicle.
Remove the APP assembly attachment bolts.
5. Remove the APP assembly from the vehicle.
INSTALLATION PROCEDURE
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Sensor > Component Information > Locations > Page 7753
1. Install the upper attachment bolt into the APP assembly. 2. Install the APP assembly into the
vehicle.
3. NOTE: Refer to Fastener Notice.
Install the remaining attachment bolts into the APP assembly.
Tighten the bolts to 25 N.m (18 lb ft).
4. Connect the APP sensor harness connector. Push the connector in until the lock position is felt,
then pull back to confirm engagement. 5. Install the CPA to the APP sensor harness connector. 6.
Install the instrument panel left lower closeout panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Cleaner Housing > Air
Cleaner Fresh Air Duct/Hose > Component Information > Service and Repair
Air Cleaner Fresh Air Duct/Hose: Service and Repair
AIR CLEANER INLET DUCT REPLACEMENT
REMOVAL PROCEDURE
1. Loosen the clamps at both ends of the air cleaner intake duct. 2. Remove the positive crankcase
ventilation (PCV) fresh air pipe from the air cleaner intake duct. 3. Remove the air cleaner intake
duct from the mass air flow (MAF) sensor and throttle body.
INSTALLATION PROCEDURE
1. Install the air cleaner intake duct to the MAF sensor and throttle body. 2. Install the PCV fresh air
pipe to the air cleaner intake duct.
3. NOTE: Refer to Fastener Notice.
Tighten the clamps at both ends of the air cleaner intake duct.
Tighten the clamps to 4 N.m (35 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > Customer Interest for Air Filter Element: >
04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON
Air Filter Element: Customer Interest Engine, A/T - Shift/Driveability Concerns/MIL ON
Bulletin No.: 04-07-30-013B
Date: February 01, 2007
INFORMATION
Subject: Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon
(SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air
Filter
Models: 2007 and Prior GM Cars and Light Duty Trucks 2007 and Prior Saturn Models 2003-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 04-07-30-013A (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
Service Engine Soon (SES) light on
Transmission shift concerns, slipping and damaged clutch(es) or band(s)
Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF)
sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from
the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an
aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared
to a like vehicle with an OEM air box and filter under the same driving conditions to verify the
concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and
the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with
oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not
considered to be warrantable repair items.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > Customer Interest for Air Filter Element: >
04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON > Page 7766
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Filter Element: >
04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON
Air Filter Element: All Technical Service Bulletins Engine, A/T - Shift/Driveability Concerns/MIL ON
Bulletin No.: 04-07-30-013B
Date: February 01, 2007
INFORMATION
Subject: Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon
(SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air
Filter
Models: 2007 and Prior GM Cars and Light Duty Trucks 2007 and Prior Saturn Models 2003-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 04-07-30-013A (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
Service Engine Soon (SES) light on
Transmission shift concerns, slipping and damaged clutch(es) or band(s)
Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF)
sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from
the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an
aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared
to a like vehicle with an OEM air box and filter under the same driving conditions to verify the
concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and
the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with
oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not
considered to be warrantable repair items.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Filter Element: >
04-07-30-013B > Feb > 07 > Engine, A/T - Shift/Driveability Concerns/MIL ON > Page 7772
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > Page 7773
Air Filter Element: Service and Repair
AIR CLEANER ELEMENT REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Release the clamps (2) on the side of the air cleaner assembly. 4. Remove the air cleaner
assembly lid (1) by tilting to release the lid from the lower housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > Page 7774
5. Remove the air cleaner element (2) from the lower housing (1).
INSTALLATION PROCEDURE
1. Install the air cleaner element (2) into the lower housing (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Cleaner Housing > Air Filter
Element > Component Information > Technical Service Bulletins > Page 7775
2. Install the air cleaner assembly lid (1) by first engaging the hinge then lower the cover into the
closed position. 3. Fasten the clamps (2) on the side of the air cleaner assembly.
4. Connect the MAF sensor electrical connector. 5. Install the air cleaner intake duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Locations
Air Induction Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions
Air Flow Meter/Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7781
Electrical Symbols Part 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7782
Electrical Symbols Part 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7783
Electrical Symbols Part 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7784
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7785
Electrical Symbols Part 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7786
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7787
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7788
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7789
Air Flow Meter/Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7790
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7791
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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Component Information > Diagrams > Diagram Information and Instructions > Page 7792
resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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Component Information > Diagrams > Diagram Information and Instructions > Page 7793
electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 7794
cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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Component Information > Diagrams > Diagram Information and Instructions > Page 7795
1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7797
Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Component Information > Diagrams > Diagram Information and Instructions > Page 7814
Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Component Information > Diagrams > Diagram Information and Instructions > Page 7834
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Component Information > Diagrams > Diagram Information and Instructions > Page 7845
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7860
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7863
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7869
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7870
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7871
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7872
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7873
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7874
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7875
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7876
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7877
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7878
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7879
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 7880
Mass Air Flow (MAF) Sensor
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Page 7881
Air Flow Meter/Sensor: Service and Repair
MASS AIRFLOW SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Remove the screws that retain the MAF to the air cleaner assembly. 4. Remove the MAF from
the air cleaner assembly. 5. Remove the MAF to air cleaner assembly seal.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor >
Component Information > Diagrams > Page 7882
1. Install the seal to the MAF. 2. Install the MAF to the air cleaner assembly.
3. NOTE: Refer to Fastener Notice.
Install the screws that retain the MAF to the air cleaner assembly.
Tighten the screws to 4 N.m (35 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Fuel - GM's Position on Use of E 15 in 2007 Newer M.Y.
Fuel: Technical Service Bulletins Fuel - GM's Position on Use of E 15 in 2007 Newer M.Y.
INFORMATION
Bulletin No.: 10-06-04-015
Date: December 08, 2010
Subject: General Motors' Position Regarding Use of E15 in Model Year 2007 and Newer Vehicles
Models:
2007-2011 GM Passenger Cars and Trucks
General Motors' position regarding the Environmental Protection Agency announcement allowing
the use of E 15 in 2007 and newer vehicles:
- General Motors' remains focused on securing a safe and positive driving experience for our
customers. GM believes that the waiver decision by the EPA regarding E 15 could lead to
confusion for consumers as to what fuel their vehicle should use. In response, we will continue to
encourage our customers to refer to their vehicle Owner Manual for proper fuel designation. The
vehicle Owner Manual specifies that fuels containing more than 10 percent ethanol should not be
used in GM vehicles that do not have a flex fuel designation.
- GM has the largest fleet of flex fuel vehicles on the road today (over 4 million in the U.S.) and
these vehicles can safely use ethanol blends of up to 85 percent ethanol. So blends of E 15 (15
percent ethanol), as in the partial waiver announced, are appropriate for these vehicles. However,
ethanol blends greater than E 10 should not be used in GM vehicles that do not have a flex fuel
designation as they are not designed and certified to run on gasoline consisting of more than 10
percent ethanol-blend volume to avoid any unintended consequences, as per: their Owner Manual.
- We believe biofuels, especially E 85 ethanol, are an effective near-term solution to reduce
petroleum dependence and the carbon footprint of driving. As the global leader in producing
vehicles designed to handle ethanol blends from E 0 to E 85, GM offers 19 flexible-fuel vehicles for
the 2011 model year.
Disclaimer
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Fuel - GM's Position on Use of E 15 in 2007 Newer M.Y. > Page 7887
Fuel: Technical Service Bulletins Fuel System - TOP TIER Detergent Gasoline (Canada)
INFORMATION
Bulletin No.: 05-06-04-022G
Date: October 27, 2010
Subject: TOP TIER Detergent Gasoline Information and Available Brands (Deposits, Fuel
Economy, No Start, Power, Performance, Stall Concerns) - Canada ONLY
Models:
2011 and Prior GM Passenger Cars and Trucks (Canada Only)
Supercede: This bulletin is being revised to update the model years and include an additional
gasoline brand as a TOP TIER source. Please discard Corporate Bulletin Number 05-06-04-022F
(Section 06 - Engine/Propulsion System). In the U.S., refer to the latest version of Corporate
Bulletin Number 04-06-04-047I.
A new class of fuel called TOP TIER Detergent Gasoline is appearing at retail stations of some fuel
marketers. This gasoline meets detergency standards developed by six automotive companies. All
vehicles will benefit from using TOP TIER Detergent Gasoline over gasoline containing the "Lowest
Additive Concentration" recommended by the Canadian General Standards Board (CGSB). Those
vehicles that have experienced deposit related concerns may especially benefit from use of TOP
TIER Detergent Gasoline.
Intake valve: 16,093 km (10,000 mi) with TOP TIER Detergent Gasoline
Intake valve: 16,093 km (10,000 mi) with Minimum Additive recommended by the CGSB
Top Tier Fuel Availability
Chevron was the first to offer TOP TIER Detergent Gasoline in Canada. Shell became the first
national gasoline retailer to offer TOP TIER Detergent Gasoline across Canada. Petro-Canada
began offering TOP TIER Detergent Gasoline nationally as of October 1, 2006. Sunoco began
offering TOP TIER Detergent Gasoline in March of 2007. Esso began offering TOP TIER Detergent
Gasoline in May of 2010.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Fuel - GM's Position on Use of E 15 in 2007 Newer M.Y. > Page 7888
Gasoline Brands That Currently Meet TOP TIER Detergent Gasoline Standards
The following gasoline brands meet the TOP TIER Detergent Gasoline Standards in all octane
grades :
Chevron Canada (markets in British Columbia and western Alberta)
- Shell Canada (nationally)
- Petro-Canada (nationally)
- Sunoco-Canada (Ontario)
- Esso-Canada (nationally)
What is TOP TIER Detergent Gasoline?
TOP TIER Detergent Gasoline is a new class of gasoline with enhanced detergency and no
metallic additives. It meets new, voluntary deposit control standards developed by six automotive
companies that exceed the detergent recommendations of Canadian standards and does not
contain metallic additives, which can damage vehicle emission control components.
Where Can TOP TIER Detergent Gasoline Be Purchased?
The TOP TIER program began in the U.S. and Canada on May 3, 2004. Some fuel marketers have
already joined and introduced TOP TIER Detergent Gasoline. This is a voluntary program and not
all fuel marketers will offer this product. Once fuel marketers make public announcements, they will
appear on a list of brands that meet the TOP TIER standards.
Who developed TOP TIER Detergent Gasoline standards?
TOP TIER Detergent Gasoline standards were developed by six automotive companies: BMW,
General Motors, Honda, Toyota, Volkswagen and Audi.
Why was TOP TIER Detergent Gasoline developed?
TOP TIER Detergent Gasoline was developed to increase the level of detergent additive in
gasoline. In the U.S., government regulations require that all gasoline sold in the U.S. contain a
detergent additive. However, the requirement is minimal and in many cases, is not sufficient to
keep engines clean. In Canada, gasoline standards recommend adherence to U.S. detergency
requirements but do not require it. In fact, many brands of gasoline in Canada do not contain any
detergent additive. In order to meet TOP TIER Detergent Gasoline standards, a higher level of
detergent is needed than what is required or recommended, and no metallic additives are allowed.
Also, TOP TIER was developed to give fuel marketers the opportunity to differentiate their product.
Why did the six automotive companies join together to develop TOP TIER?
All six corporations recognized the benefits to both the vehicle and the consumer. Also, joining
together emphasized that low detergency and the intentional addition of metallic additives is an
issue of concern to several automotive companies.
What are the benefits of TOP TIER Detergent Gasoline?
TOP TIER Detergent Gasoline will help keep engines cleaner than gasoline containing the "Lowest
Additive Concentration" recommended by Canadian standards. Clean engines help provide optimal
fuel economy and engine performance, and also provide reduced emissions. Also, the use of TOP
TIER Detergent Gasoline will help reduce deposit related concerns.
Who should use TOP TIER Detergent Gasoline?
All vehicles will benefit from using TOP TIER Detergent Gasoline over gasoline containing the
"Lowest Additive Concentration" recommended by Canadian standards. Those vehicles that have
experienced deposit related concerns may especially benefit from use of TOP TIER Detergent
Gasoline. More information on TOP TIER Detergent Gasoline can be found at this website,
http://www.toptiergas.com/.
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Fuel - GM's Position on Use of E 15 in 2007 Newer M.Y. > Page 7889
Disclaimer
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Fuel - GM's Position on Use of E 15 in 2007 Newer M.Y. > Page 7890
Fuel: Technical Service Bulletins Fuel System - 'TOP TIER' Detergent Gasoline Information
INFORMATION
Bulletin No.: 04-06-04-047I
Date: August 17, 2009
Subject: TOP TIER Detergent Gasoline (Deposits, Fuel Economy, No Start, Power, Performance,
Stall Concerns) - U.S. Only
Models:
2010 and Prior GM Passenger Cars and Trucks (including Saturn) (U.S. Only) 2003-2010
HUMMER H2 (U.S. Only) 2006-2010 HUMMER H3 (U.S. Only) 2005-2009 Saab 9-7X (U.S. Only)
Supercede: This bulletin is being revised to add model years and additional sources to the Top Tier
Fuel Retailers list. Please discard Corporate Bulletin Number 04-06-04-047H (Section 06 Engine/Propulsion System). In Canada, refer to Corporate Bulletin Number 05-06-04-022F.
A new class of fuel called TOP TIER Detergent Gasoline is appearing at retail stations of some fuel
marketers. This gasoline meets detergency standards developed by six automotive companies. All
vehicles will benefit from using TOP TIER Detergent Gasoline over gasoline containing the "Lowest
Additive Concentration" set by the EPA. Those vehicles that have experienced deposit related
concerns may especially benefit from the use of TOP TIER Detergent Gasoline.
Intake valve: - 10,000 miles with TOP TIER Detergent Gasoline
Intake valve: - 10,000 miles with Legal Minimum additive
Gasoline Brands That Currently Meet TOP TIER Detergent Gasoline Standards
As of August 1, 2009, all grades of the following gasoline brands meet the TOP TIER Detergent
Gasoline Standards:
- Chevron
- Chevron-Canada
- QuikTrip
- Conoco
Phillips 66
- 76
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Fuel - GM's Position on Use of E 15 in 2007 Newer M.Y. > Page 7891
- Shell
- Shell-Canada
- Entec Stations located in the greater Montgomery, Alabama area.
- MFA Oil Company located throughout Missouri.
- Kwik Trip, Inc. in Minnesota and Wisconsin and Kwik Star convenience stores in Iowa.
The Somerset Refinery, Inc. at Somerset Oil stations in Kentucky.
Aloha Petroleum
- Tri-Par Oil Company
- Turkey Hill Minit Markets
- Texaco
- Petro-Canada
- Sunoco-Canada
- Road Ranger located in Illinois, Indiana, Iowa, Kentucky, Missouri, Ohio and Wisconsin
What is TOP TIER Detergent Gasoline?
TOP TIER Detergent Gasoline is a new class of gasoline with enhanced detergency. It meets new,
voluntary deposit control standards developed by six automotive companies that exceed the
detergent requirements imposed by the EPA.
Where Can TOP TIER Detergent Gasoline Be Purchased?
The TOP TIER program began on May 3, 2004 and many fuel marketers have joined the program
and have introduced TOP TIER Detergent Gasoline. This is a voluntary program and not all fuel
marketers will offer this product. Once fuel marketers make public announcements, they will appear
on a list of brands that meet the TOP TIER standards.
Where Can I find the Latest Information on TOP TIER Fuel and Retailers?
On the web, please visit www.toptiergas.com for additional information and updated retailer lists.
Who developed TOP TIER Detergent Gasoline standards?
TOP TIER Detergent Gasoline standards were developed by six automotive companies: Audi,
BMW, General Motors, Honda, Toyota and Volkswagen.
Why was TOP TIER Detergent Gasoline developed?
TOP TIER Detergent Gasoline was developed to increase the level of detergent additive in
gasoline. The EPA requires that all gasoline sold in the U.S. contain a detergent additive. However,
the requirement is minimal and in many cases, is not sufficient to keep engines clean. In order to
meet TOP TIER Detergent Gasoline standards, a higher level of detergent is needed than what is
required by the EPA. Also, TOP TIER was developed to give fuel marketers the opportunity to
differentiate their product.
Why did the six automotive companies join together to develop TOP TIER?
All six corporations recognized the benefits to both the vehicle and the consumer. Also, joining
together emphasized that low detergency is an issue of concern to several automotive companies.
What are the benefits of TOP TIER Detergent Gasoline?
TOP TIER Detergent Gasoline will help keep engines cleaner than gasoline containing the "Lowest
Additive Concentration" set by the EPA. Clean engines help provide optimal fuel economy and
performance and reduced emissions. Also, use of TOP TIER Detergent Gasoline will help reduce
deposit related concerns.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Fuel - GM's Position on Use of E 15 in 2007 Newer M.Y. > Page 7892
Fuel: Technical Service Bulletins Fuel System - E85 Fuel Usage Precautions
Bulletin No.: 05-06-04-035C
Date: July 30, 2007
INFORMATION
Subject: Usage of E85 Fuels in GM Vehicles
Models: 1997-2008 GM Passenger Cars and Trucks (including Saturn) 2003-2008 HUMMER H2
2006-2008 HUMMER H3 1997-2008 Isuzu NPR Commercial Medium Duty Trucks 2005-2008
Saab 9-7X
Supercede:
This bulletin is being revised to add the 2008 model year and additional engines with E85
capability. Please discard Corporate Bulletin Number 05-06-04-035B (Section 06 Engine/Propulsion System).
Customer Interest in E85 Fuel
As the retail price of gasoline increases, some locations in the country are seeing price differentials
between regular gasoline and E85 where E85 is selling for substantially less than regular grade
gasoline. One result of this is that some customers have inquired if they are able to use E85 fuel in
non-E85 compatible vehicles.
Only vehicles designated for use with E85 should use E85 blended fuel.
E85 compatibility is designated for vehicles that are certified to run on up to 85% ethanol and 15%
gasoline. All other gasoline engines are designed to run on fuel that contains no more than 10%
ethanol.
Use of fuel containing greater than 10% ethanol in non-E85 designated vehicles can cause
driveability issues, service engine soon indicators as well as increased fuel system corrosion.
Using E85 Fuels in Non-Compatible Vehicles
General Motors is aware of an increased number of cases where customers have fueled
non-FlexFuel designated vehicles with E85. Fueling non-FlexFuel designated vehicles with E85, or
with fuels where the concentration of ethanol exceeds the ASTM specification of 10%, will result in
one or more of the following conditions:
Lean Driveability concerns such as hesitations, sags and/or possible stalling.
SES lights due to OBD codes.
Fuel Trim codes P0171 and/or P0174.
Misfire codes (P0300).
Various 02 sensor codes.
Disabled traction control or Stability System disabled messages.
Harsh/Firm transmission shifts.
Fuel system and/or engine mechanical component degradation.
Use of fuel containing greater than 10% ethanol in non-E85 designated vehicles can cause
driveability issues, service engine soon indicators as well as increased fuel system corrosion.
If the dealer suspects that a non-FlexFuel designated vehicle brought in for service has been
fueled with E85, the fuel in the vehicle's tank should be checked for alcohol content with tool J
44175. If the alcohol content exceeds 10% the fuel should be drained and the vehicle refilled with
gasoline - preferably one of the Top Tier brands.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Fuel - GM's Position on Use of E 15 in 2007 Newer M.Y. > Page 7893
Repairs to non-FlexFuel vehicles that have been fueled with E85 are not covered under the terms
of the New Vehicle Warranty.
A complete list of GM's FlexFuel vehicles can be found in this Service Bulletin, or at
www.livegreengoyellow.com.
E85 Compatible Vehicles
The only E85 compatible vehicles produced by General Motors are shown.
Only vehicles that are listed in the E85 Compatible Vehicles section of this bulletin and/or
www.livegreengoyellow.com are E85 compatible.
All other gasoline and diesel engines are NOT E85 compatible.
Use of fuel containing greater than 10% ethanol in non-E85 designated vehicles can cause
driveability issues, service engine soon indicators as well as increased fuel system corrosion.
Repairs to non-FlexFuel vehicles that have been fueled with E85 are not covered under the terms
of the New Vehicle Warranty.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Fuel - GM's Position on Use of E 15 in 2007 Newer M.Y. > Page 7894
Fuel: Technical Service Bulletins Fuel System - E85 Refueling Station Information
Bulletin No.: 06-06-04-030
Date: May 15, 2006
INFORMATION
Subject: Locations of E85 Refueling Stations and Expanded E85 Information
Models: 2007 and Prior GM Cars and Trucks Equipped for Flexible Fuel (E85)
Attention:
U.S. dealers - This bulletin should be directed to the Sales Manager as well as the Service
Manager. Copies of this bulletin may be given to customers purchasing or considering the
purchase of E85 capable vehicles, and may be left or posted in customer waiting areas. Canadian
dealers - This bulletin is intended for the U.S. Market and provides only limited information relevant
to the Canadian market.
Customer Questions, Concerns and Refueling Locations for E85 Fuel
Extensive information on E85 Ethanol based fuels can be found at www.livegreengoyellow.com .
This General Motors site contains vital information that anticipates and answers customer
questions and concerns about E85 fuel. Part of the information is a useful link that provides the
location nationally of all E85 refueling stations.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Page 7895
Fuel: Specifications
GASOLINE OCTANE
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is
less than 87, you may notice an audible knocking noise when you drive, commonly referred to as
spark knock. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If you
are using gasoline rated at 87 octane or higher and you hear heavy knocking, your engine needs
service.
GASOLINE SPECIFICATIONS
At a minimum, gasoline should meet ASTM specification D 4814 in the United States or
CAN/CGSB-3.5 in Canada. Some gasolines may contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT). General Motors recommends against the
use of gasolines containing MMT.
CALIFORNIA FUEL
If your vehicle is certified to meet California Emission Standards, it is designed to operate on fuels
that meet California specifications. See the underhood emission control label. If this fuel is not
available in states adopting California emissions standards, your vehicle will operate satisfactorily
on fuels meeting federal specifications, but emission control system performance may be affected.
The malfunction indicator lamp may turn on and your vehicle may fail a smog-check test. If it is
determined that the condition is caused by the type of fuel used, repairs may not be covered by
your warranty.
ADDITIVES
To provide cleaner air, all gasolines in the United States are now required to contain additives that
will help prevent engine and fuel system deposits from forming, allowing your emission control
system to work properly. In most cases, you should not have to add anything to your fuel. However,
some gasolines contain only the minimum amount of additive required to meet U.S. Environmental
Protection Agency regulations. To help keep fuel injectors and intake valves clean, or if your
vehicle experiences problems due to dirty injectors or valves, look for gasoline that is advertised as
TOP TIER Detergent Gasoline. Also, your dealer has additives that will help correct and prevent
most deposit-related problems.
Gasolines containing oxygenates, such as ethers and ethanol, and reformulated gasolines may be
available in your area. General Motors recommends that you use these gasolines if they comply
with the specifications described earlier. However, E85 (85% ethanol) and other fuels containing
more than 10% ethanol must not be used in vehicles that were not designed for those fuels.
NOTICE: Your vehicle was not designed for fuel that contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in the fuel system and also damage plastic and rubber parts.
That damage would not be covered under your warranty.
Some gasolines that are not reformulated for low emissions may contain an octane-enhancing
additive called methylcyclopentadienyl manganese tricarbonyl (MMT); ask the attendant where you
buy gasoline whether the fuel contains MMT. General Motors recommends against the use of such
gasolines. Fuels containing MMT can reduce the life of spark plugs and the performance of the
emission control system may be affected. The malfunction indicator lamp may turn on. If this
occurs, return to your dealer for service.
NOTICE: Your vehicle was not designed for fuel that contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in your fuel system and also damage the plastic and rubber
parts. That damage would not be covered under your warranty.
Some gasolines that are not reformulated for low emissions may contain an octane-enhancing
additive called methylcyclopentadienyl manganese tricarbonyl (MMT); ask the attendant where you
buy gasoline whether the fuel contains MMT. General Motors does not recommend the use of such
gasolines. Fuels containing MMT can reduce the life of spark plugs and the performance of the
emission control system may be affected. The malfunction indicator lamp may turn on.
FUELS IN FOREIGN COUNTRIES
If you plan on driving in another country outside the United States or Canada, the proper fuel may
be hard to find. Never use leaded gasoline or any other fuel not recommended in the previous text
on fuel. Costly repairs caused by use of improper fuel would not be covered by your warranty. To
check the fuel availability, ask an auto club, or contact a major oil company that does business in
the country where you will be driving.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Page 7896
Fuel: Service Precautions
Gasoline/Gasoline Vapors Caution
Caution: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source
is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of
fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel > Component Information
> Technical Service Bulletins > Page 7897
Fuel: Testing and Inspection
ALCOHOL/CONTAMINANTS-IN-FUEL DIAGNOSIS
TEST DESCRIPTION
Water contamination in the fuel system may cause driveability conditions such as hesitation,
stalling, no start, or misfires in one or more cylinders. Water may collect near a single fuel injector
at the lowest point in the fuel injection system and cause a misfire in that cylinder. If the fuel system
is contaminated with water, inspect the fuel system components for rust or deterioration.
Ethanol concentrations of greater than 10 percent can cause driveability conditions and fuel system
deterioration. Fuel with more than 10 percent ethanol could result in driveability conditions such as
hesitation, lack of power, stalling, or no start. Excessive concentrations of ethanol used in vehicles
not designed for it may cause fuel system corrosion, deterioration of rubber components, and fuel
filter restriction.
SYSTEM VERIFICATION
The fuel sample should be drawn from the bottom of the tank so that any water present in the tank
will be detected. The sample should be bright and clear. If the sample appears cloudy, or contaminated with water, as indicated by a water layer at the
bottom of the sample, perform the Particulate Contaminants in Fuel Testing Procedure.
- If alcohol contamination is suspected, perform the Alcohol in Fuel Testing procedure.
ALCOHOL IN FUEL TESTING WITH SPECIAL TOOL
1. Test the fuel composition using J 44175 and Instruction Manual. 2. If water appears in the fuel
sample, clean the fuel system. 3. Subtract 50 from the reading on the DMM in order to obtain the
percentage of alcohol in the fuel sample. 4. If the fuel sample contains more than 15 percent
ethanol, add fresh, regular gasoline to the vehicle fuel tank. 5. Test the fuel composition. 6. If
testing shows the ethanol percentage is still more than 15 percent, replace the fuel in the vehicle.
ALCOHOL IN FUEL TESTING WITHOUT SPECIAL TOOL
1. Using a 100 ml (3.38 oz) specified cylinder with 1 ml (0.034 oz) graduation marks, fill the cylinder
with fuel to the 90 ml (3.04 oz) mark. 2. Add 10 ml (0.34 oz) of water in order to bring the total fluid
volume to 100 ml (3.38 oz) and install a stopper. 3. Shake the cylinder vigorously for 10-15
seconds. 4. Carefully loosen the stopper in order to release the pressure. 5. Re-install the stopper
and shake the cylinder vigorously again for 10-15 seconds. 6. Put the cylinder on a level surface for
approximately 5 minutes in order to allow adequate liquid separation. If alcohol is present in the
fuel, the
volume of the lower layer, which would now contain both alcohol and water, will be more than 10 ml
(0.34 oz). For example, if the volume of the lower layer is increased to 15 ml (0.51 oz), this
indicates at least 5 percent alcohol in the fuel. The actual amount of alcohol may be somewhat
more because this procedure does not extract all of the alcohol from the fuel.
PARTICULATE CONTAMINANTS IN FUEL TESTING PROCEDURE
1. Using an approved fuel container, draw approximately 0.5 liter (0.53 qt) of fuel. 2. Place the
container on a level surface for approximately 5 minutes in order to allow settling of the particulate
contamination. Particulate
contamination will show up in various shapes and colors. Sand will typically be identified by a white
or light brown crystals. Rubber will appear as black and irregular particles.
3. Observe the fuel sample. If any physical contaminants or water are present, clean the fuel
system.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. See:
Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/Verification Tests and Procedures
Fuel System Cleaning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Filler Cap > Component
Information > Technical Service Bulletins > Fuel System -07-06-04-022G End Of Need For Information
Fuel Filler Cap: Technical Service Bulletins Fuel System -07-06-04-022G End Of Need For
Information
ENGINEERING INFORMATION
Bulletin No.: 07-06-04-022G
Date: July 31, 2009
Subject: EI07238 - Fuel Cap May Not Seal, MIL/SES Light Illuminated with DTC P0442 Evaporative Emission (EVAP) System Small Leak Detected and/or P0455 - Evaporative Emission
(EVAP) System Large Leak Detected (Engineering Information Closed)
Models:
2005 Cadillac DeVille 2005-2006 Cadillac SRX 2005-2007 Cadillac XLR, XLR-V 2005-2007
Chevrolet Corvette 2006-2007 Chevrolet Equinox 2007-2008 Chevrolet Express 2007-2008 GMC
Savana 2005 Pontiac Bonneville 2006 Pontiac GTO 2006-2007 Pontiac Torrent 2005-2007 Saturn
VUE Equipped with Engine RPOs LJ3, LC3, L61, LK9, LNJ, LP9, L36, L66, LH2, LD8, LY2, LR4,
LS2, LY6, LS7 Please Refer to GMVIS
Supercede: This bulletin is being revised to end the need for information from the field. Please
discard Corporate Bulletin Number 07-06-04-022F (Section 06 - Engine/Propulsion System).
Additional information is no longer needed by Engineering. Refer to the published diagnostics and
repairs in SI to correct this concern.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Filter > Fuel Pressure
Release > System Information > Service and Repair > Fuel Pressure Relief
Fuel Pressure Release: Service and Repair Fuel Pressure Relief
FUEL PRESSURE RELIEF
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
WITH CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Remove the engine cover, if required. 2. Loosen the fuel fill cap in order to relieve the fuel tank
vapor pressure. 3. Remove the fuel rail service port cap.
4. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel will
absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
5. Connect the CH-48027-3 (4) to the fuel rail service port. 6. Connect the CH-48027-2 (2) to the
CH-48027-3 (4). 7. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 8.
Open the valve on the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 9. Close the
valve on the CH-48027-2 (2).
10. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
IMPORTANT: If relieving the fuel pressure for the fuel pressure gage installation and removal, it is
NOT necessary to proceed with the following steps.
11. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Filter > Fuel Pressure
Release > System Information > Service and Repair > Fuel Pressure Relief > Page 7907
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-2 (2) from the CH-48027-3 (4).
12. Disconnect the CH-48027-3 (4) from the fuel rail service port. 13. Remove the shop towel from
around the fuel rail service port, and place in an approved gasoline container. 14. Install the fuel rail
service port cap. 15. Install the engine cover, if required. 16. Tighten the fuel fill cap.
WITHOUT CH-48027
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Loosen the fuel fill cap in order to relieve the fuel tank vapor pressure. 2. Remove the engine
cover, if required. 3. Remove the fuel rail service port cap. 4. Wrap a shop towel around the fuel rail
service port and using a small flat bladed tool, depress (open) the fuel rail test port valve. 5.
Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container. 6. Install the fuel rail service port cap. 7. Install the engine cover, if required. 8. Tighten
the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Filter > Fuel Pressure
Release > System Information > Service and Repair > Fuel Pressure Relief > Page 7908
Fuel Pressure Release: Service and Repair Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Filter > Fuel Pressure
Release > System Information > Service and Repair > Fuel Pressure Relief > Page 7909
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Technical Service Bulletins > Customer Interest for Fuel Injector: > 03-06-04-030G > Apr > 09 > Fuel System Driveability Issues/MIL/Multiple DTC's
Fuel Injector: Customer Interest Fuel System - Driveability Issues/MIL/Multiple DTC's
TECHNICAL
Bulletin No.: 03-06-04-030G
Date: April 22, 2009
Subject: Various Driveability Symptoms Due to Clogged Fuel Injectors, MIL/SES DTCs P0171,
P0172, P0174, P0300, P1174, P1175 (Clean Fuel Injectors and/or Perform Injector Test With AFIT
CH-47976)
Models: 2005-2009 GM Passenger Cars and Light Duty Trucks 2005-2009 HUMMER H2
2006-2009 HUMMER H3 2005-2009 Saab 9-7X
Equipped with Engine RPOs listed in the Table above and MULTEC(R) 2 Fuel Injectors
Attention:
GM does not support cleaning injectors on any engines that are not listed in this bulletin. Engines
other than the ones listed in this bulletin that diagnosis indicates having restricted injectors should
have those injectors replaced.
Supercede: This bulletin is being revised to update the model year to 2009 and to provide
applicable engine RPO table. Please discard Corporate Bulletin Number 03-06-04-030F (Section
06 - Engine/Propulsion System).
Condition
Some customers may comment on any of the following various driveability symptoms:
- Extended Crank Time
- Hard to Start
- MIL/SES Illuminated with DTCs
- Hesitation
- Lack of Power
- Surge or Chuggle
- Rough Idle
- Light or Intermittent Misfire
Cause
Due to various factors, the fuel injectors may become restricted. Extensive testing has
demonstrated that fuel related issues are the cause of clogged injectors. At this point, no specific
fuel, fuel constituent, or engine condition has been identified as causing the restriction. The
restriction causes the engine to operate at a lean air fuel ratio. This may either trigger the MIL to
illuminate or the engine to develop various driveability symptoms.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Technical Service Bulletins > Customer Interest for Fuel Injector: > 03-06-04-030G > Apr > 09 > Fuel System Driveability Issues/MIL/Multiple DTC's > Page 7918
Fuel injector restrictions, deposits can be cleaned on the vehicle using the following procedure.
Under NO circumstances should this procedure be modified, changed or shortened. As a long term
solution, and to prevent reoccurrence, customers should be encouraged to use Top Tier Detergent
Gasoline. For further information on Top Tier detergent gasoline and fuel retailers, please refer to
the following Corporate Bulletin Numbers:
- 04-06-04-047G (U.S. Only)
- 05-06-04-022D (Canada ONLY)
Notice
GM UPPER ENGINE AND FUEL INJECTOR CLEANER is the only injector cleaning agent
approved for use with General Motors fuel system components. Other injector cleaners may cause
damage to plastics, plated metals or bearings. General Motors has completed extensive laboratory
testing of GM Upper Engine and Fuel Injector Cleaner, and can assure its compatibility with
General Motors fuel system components, as long as the cleaning procedure is followed correctly.
Injector Cleaning Procedure
The following tools, or their equivalent, are required:
- CH-47976 Active Fuel Injector Tester (AFIT)
- J 35800-A Fuel Injector Cleaner
- J 37287 Fuel Line Shut-off Adapter
- J 42964 Fuel Line Shut-off Adapter
- J 42873 Fuel Line Shut-off Adapter
- * One bottle of GM Upper Engine and Fuel Injector Cleaner, P/N 88861802 (in Canada, P/N
88861804)
- * One bottle of GM Fuel System Treatment Plus, P/N 88861011 (in Canada, P/N 88861012)
Active Fuel Injector Tester (AFIT- CH-47976)
Some dealers may not have an Active Fuel Injector Tester (AFIT- CH-47976). Dealers can contact
to order an AFIT- CH-47976. Dealers still can test the fuel injectors without an AFIT. Refer to Fuel
Injector Diagnosis (w/ J 39021 or Tech 2(R)) in SI.
Important
As mentioned in the AFIT User Guide, vehicles that are not listed in the AFIT menu can still be
tested with the AFIT. Depending on the model, it may be possible to enter the previous model year
and proceed with testing using the DLC connection. If this is not possible on the model that you are
working on, it will be necessary to use the direct connection method outlined in the AFIT User
Guide (See Pages 17-31).
General Motors recommends that the Active Fuel Injector Tester (AFIT) be used in testing fuel
injectors. If the SI diagnostics do not isolate a cause for this concern, use the Active Fuel Injector
Tester (AFIT - CH-47976) to perform an "Injector Test" as outlined in the AFIT User Guide.
The AFIT "Injector Test" measures the flow characteristics of all fuel injectors, which is more
precise when compared with the standard Tech 2(R) fuel injector balance test. As a result, the
AFIT is more likely to isolate the cause of a P1174 DTC (for example: if it is being caused by a fuel
injector concern).
The CH-47976 (Active Fuel Injector Tester - AFIT) can also be used to measure fuel pressure and
fuel system leak down. Also, as mentioned in the P1174 SI diagnosis, if the misfire current
counters or misfire graph indicate any misfires, it may be an indicator of the cylinder that is causing
the concern. Refer to Fuel Injector Diagnosis (w/CH-47976) in SI for additional instructions.
Training (U.S.)
To access the training video on AFIT, take the following path at the GM Training Website:
1. After logging into the training website, choose the link on the left side of the page titled "web
video library."
2. Then choose "technical."
3. Next, within the search box, type in September course number "10206.09D.
4. This will bring up a link with this course. Scroll through to choose "feature topic."
5. At this point, the seminar can be chosen to view or the video related to the AFIT.
Additional training is available from the training website. Please see TECHassist 16044.18T2
Active Fuel Injector Tester and also see 16044.14D1 GM Powertrain Performance for more
information on GM Upper Engine and Fuel Injector Cleaner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Technical Service Bulletins > Customer Interest for Fuel Injector: > 03-06-04-030G > Apr > 09 > Fuel System Driveability Issues/MIL/Multiple DTC's > Page 7919
Also, dealers can now download software updates for the AFIT at GM Dealer Equipment (GMDE).
Training (Canada)
To access the training video on AFIT, take the following path at the GMPro LMS Training Website:
1. After logging into the website, choose the link on the left side of the page titled "Catalog."
2. Then choose "Catalog Search."
3. Next, within the search box, Select Course Number - Contains - "T" then select search.
4. This will bring up a list of TECHassist courses. Scroll through to choose "Active Fuel Injector
Tester" and select "View."
5. At this point, a new window will open and the program can be Launched.
Also, dealers can now download software updates for the AFIT at GM Dealer Equipment (GMDE).
Techlink
Additional information can be found on AFIT (June 2006 Edition) and GM Upper Engine and Fuel
Injector Cleaner (November 2006 Edition) in Techlink. To access the articles, take the following
path:
1. Go to GM DealerWorld (U.S.) or the GM GlobalConnect (Canada).
2. Click on the Service Tab in DealerWorld (in Canada, click Technican Resources in the Service
Library of GM GlobalConnect).
3. Click on the GM Techlink Hyperlink.
4. Click on the Archives Hyperlink at GM Techlink.
- Click on 06-2006 in the Archives Section and Click on the Active Fuel Injector Tester Link in the
June 2006 Techlink Article.
- Click on 11-2006 in the Archives Section and Click on the GM Top Engine Cleaner Replaced Link
in the November 2006 Techlink Article.
Injector Cleaning Procedure
Notice
GM UPPER ENGINE AND FUEL INJECTOR CLEANER is the only injector cleaning agent
recommended. DO NOT USE OTHER CLEANING AGENTS AS THEY MAY CONTAIN
METHANOL, WHICH CAN DAMAGE FUEL SYSTEM COMPONENTS. Under NO circumstances
should the GM Upper Engine and Fuel Injector Cleaner be added to the vehicle fuel tank.
Do not exceed the recommended cleaning solution concentration. Testing has demonstrated that
exceeding the recommended cleaning solution concentration does not improve the effectiveness of
this procedure.
Important
Vehicles with less than 160 km (100 mi) on the odometer should not have the injectors cleaned.
These vehicles should have any out of specification injectors replaced.
1. For 4, 5 and 6 cylinder engines, empty two of the 30 ml (1 oz) reservoirs of the GM Upper
Engine and Fuel Injector Cleaner container into the J
35800-A - Injector Cleaning Tank then add 420 ml (14 oz) of regular unleaded gasoline. If you are
using any other brand of cleaning tank, you will need a total of 60 ml (2 oz) mixed with 420 ml (14
oz) of regular unleaded gasoline.
2. For 8 cylinder engines, empty two of the 30 ml (1 oz) reservoirs of the GM Upper Engine and
Fuel Injector Cleaner container into the J 35800-A Injector Cleaning Tank then add 420 ml (14 oz) of regular unleaded gasoline. If you are using any
other brand of cleaning tank, you will need a total of 60 ml (2 oz) of Upper Engine and Fuel Injector
Cleaner mixed with 420 ml (14 oz) of regular unleaded gasoline. This procedure will need to be
repeated for a second time for an 8 cylinder engine (8 cylinder engines receive 960 ml total fluid 120 ml (4 oz) of Upper Engine and Fuel Injector Cleaner and 840 ml (28 oz) of gasoline.
3. Be sure to follow all additional instructions provided with the tool.
4. Electrically disable the vehicle fuel pump by either removing the fuel pump fuse or the fuel pump
relay and disconnecting the oil pressure switch
connector, if equipped.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Technical Service Bulletins > Customer Interest for Fuel Injector: > 03-06-04-030G > Apr > 09 > Fuel System Driveability Issues/MIL/Multiple DTC's > Page 7920
5. Turn the ignition to the OFF position.
6. Relieve fuel pressure and disconnect the fuel feed and return lines at the fuel rail. Plug the fuel
feed and return lines coming off the fuel rail with J
37287, J 42873 or J 42964 as appropriate for the fuel system.
7. Connect the J 35800-A to the vehicle fuel rail.
8. Pressurize the J 35800-A to 510 kPa (75 psi).
9. Start and idle the engine until it stalls, due to lack of fuel. This should take approximately 15-20
minutes.
10. Turn the ignition to the OFF position.
11. Disconnect the J 35800-A from the fuel rail.
12. Reconnect the vehicle fuel pump relay and oil pressure switch connector, if equipped.
13. Remove the J 37287, J 42873 or J 42964 and reconnect the vehicle fuel feed and return lines.
14. Start and idle the vehicle for an additional two minutes to ensure residual injector cleaner is
flushed from the fuel rail and fuel lines.
15. Pour the entire contents of GM Fuel System Treatment Plus (P/N 88861011 [in Canada, P/N
88861012]) into the tank and advise the customer to
fill the tank.
16. Review the benefits of using Top Tier Detergent gasoline with the customer and recommend
that they add a bottle of GM Fuel System Treatment
Plus to the fuel tank at every oil change. Regular use of GM Fuel System Treatment Plus should
keep the customer from having to repeat the injector cleaning procedure.
17. Road test the vehicle to verify that the customer concern has been corrected.
Parts Information
* Only 1/8 of the cost may be claimed for 4 and 6 cylinder engines and 1/4 of the cost for 8 cylinder
engines.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Technical Service Bulletins > Customer Interest for Fuel Injector: > 03-06-04-030G > Apr > 09 > Fuel System Driveability Issues/MIL/Multiple DTC's > Page 7921
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Fuel Injector: > 03-06-04-030G > Apr > 09 >
Fuel System - Driveability Issues/MIL/Multiple DTC's
Fuel Injector: All Technical Service Bulletins Fuel System - Driveability Issues/MIL/Multiple DTC's
TECHNICAL
Bulletin No.: 03-06-04-030G
Date: April 22, 2009
Subject: Various Driveability Symptoms Due to Clogged Fuel Injectors, MIL/SES DTCs P0171,
P0172, P0174, P0300, P1174, P1175 (Clean Fuel Injectors and/or Perform Injector Test With AFIT
CH-47976)
Models: 2005-2009 GM Passenger Cars and Light Duty Trucks 2005-2009 HUMMER H2
2006-2009 HUMMER H3 2005-2009 Saab 9-7X
Equipped with Engine RPOs listed in the Table above and MULTEC(R) 2 Fuel Injectors
Attention:
GM does not support cleaning injectors on any engines that are not listed in this bulletin. Engines
other than the ones listed in this bulletin that diagnosis indicates having restricted injectors should
have those injectors replaced.
Supercede: This bulletin is being revised to update the model year to 2009 and to provide
applicable engine RPO table. Please discard Corporate Bulletin Number 03-06-04-030F (Section
06 - Engine/Propulsion System).
Condition
Some customers may comment on any of the following various driveability symptoms:
- Extended Crank Time
- Hard to Start
- MIL/SES Illuminated with DTCs
- Hesitation
- Lack of Power
- Surge or Chuggle
- Rough Idle
- Light or Intermittent Misfire
Cause
Due to various factors, the fuel injectors may become restricted. Extensive testing has
demonstrated that fuel related issues are the cause of clogged injectors. At this point, no specific
fuel, fuel constituent, or engine condition has been identified as causing the restriction. The
restriction causes the engine to operate at a lean air fuel ratio. This may either trigger the MIL to
illuminate or the engine to develop various driveability symptoms.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Fuel Injector: > 03-06-04-030G > Apr > 09 >
Fuel System - Driveability Issues/MIL/Multiple DTC's > Page 7927
Fuel injector restrictions, deposits can be cleaned on the vehicle using the following procedure.
Under NO circumstances should this procedure be modified, changed or shortened. As a long term
solution, and to prevent reoccurrence, customers should be encouraged to use Top Tier Detergent
Gasoline. For further information on Top Tier detergent gasoline and fuel retailers, please refer to
the following Corporate Bulletin Numbers:
- 04-06-04-047G (U.S. Only)
- 05-06-04-022D (Canada ONLY)
Notice
GM UPPER ENGINE AND FUEL INJECTOR CLEANER is the only injector cleaning agent
approved for use with General Motors fuel system components. Other injector cleaners may cause
damage to plastics, plated metals or bearings. General Motors has completed extensive laboratory
testing of GM Upper Engine and Fuel Injector Cleaner, and can assure its compatibility with
General Motors fuel system components, as long as the cleaning procedure is followed correctly.
Injector Cleaning Procedure
The following tools, or their equivalent, are required:
- CH-47976 Active Fuel Injector Tester (AFIT)
- J 35800-A Fuel Injector Cleaner
- J 37287 Fuel Line Shut-off Adapter
- J 42964 Fuel Line Shut-off Adapter
- J 42873 Fuel Line Shut-off Adapter
- * One bottle of GM Upper Engine and Fuel Injector Cleaner, P/N 88861802 (in Canada, P/N
88861804)
- * One bottle of GM Fuel System Treatment Plus, P/N 88861011 (in Canada, P/N 88861012)
Active Fuel Injector Tester (AFIT- CH-47976)
Some dealers may not have an Active Fuel Injector Tester (AFIT- CH-47976). Dealers can contact
to order an AFIT- CH-47976. Dealers still can test the fuel injectors without an AFIT. Refer to Fuel
Injector Diagnosis (w/ J 39021 or Tech 2(R)) in SI.
Important
As mentioned in the AFIT User Guide, vehicles that are not listed in the AFIT menu can still be
tested with the AFIT. Depending on the model, it may be possible to enter the previous model year
and proceed with testing using the DLC connection. If this is not possible on the model that you are
working on, it will be necessary to use the direct connection method outlined in the AFIT User
Guide (See Pages 17-31).
General Motors recommends that the Active Fuel Injector Tester (AFIT) be used in testing fuel
injectors. If the SI diagnostics do not isolate a cause for this concern, use the Active Fuel Injector
Tester (AFIT - CH-47976) to perform an "Injector Test" as outlined in the AFIT User Guide.
The AFIT "Injector Test" measures the flow characteristics of all fuel injectors, which is more
precise when compared with the standard Tech 2(R) fuel injector balance test. As a result, the
AFIT is more likely to isolate the cause of a P1174 DTC (for example: if it is being caused by a fuel
injector concern).
The CH-47976 (Active Fuel Injector Tester - AFIT) can also be used to measure fuel pressure and
fuel system leak down. Also, as mentioned in the P1174 SI diagnosis, if the misfire current
counters or misfire graph indicate any misfires, it may be an indicator of the cylinder that is causing
the concern. Refer to Fuel Injector Diagnosis (w/CH-47976) in SI for additional instructions.
Training (U.S.)
To access the training video on AFIT, take the following path at the GM Training Website:
1. After logging into the training website, choose the link on the left side of the page titled "web
video library."
2. Then choose "technical."
3. Next, within the search box, type in September course number "10206.09D.
4. This will bring up a link with this course. Scroll through to choose "feature topic."
5. At this point, the seminar can be chosen to view or the video related to the AFIT.
Additional training is available from the training website. Please see TECHassist 16044.18T2
Active Fuel Injector Tester and also see 16044.14D1 GM Powertrain Performance for more
information on GM Upper Engine and Fuel Injector Cleaner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Fuel Injector: > 03-06-04-030G > Apr > 09 >
Fuel System - Driveability Issues/MIL/Multiple DTC's > Page 7928
Also, dealers can now download software updates for the AFIT at GM Dealer Equipment (GMDE).
Training (Canada)
To access the training video on AFIT, take the following path at the GMPro LMS Training Website:
1. After logging into the website, choose the link on the left side of the page titled "Catalog."
2. Then choose "Catalog Search."
3. Next, within the search box, Select Course Number - Contains - "T" then select search.
4. This will bring up a list of TECHassist courses. Scroll through to choose "Active Fuel Injector
Tester" and select "View."
5. At this point, a new window will open and the program can be Launched.
Also, dealers can now download software updates for the AFIT at GM Dealer Equipment (GMDE).
Techlink
Additional information can be found on AFIT (June 2006 Edition) and GM Upper Engine and Fuel
Injector Cleaner (November 2006 Edition) in Techlink. To access the articles, take the following
path:
1. Go to GM DealerWorld (U.S.) or the GM GlobalConnect (Canada).
2. Click on the Service Tab in DealerWorld (in Canada, click Technican Resources in the Service
Library of GM GlobalConnect).
3. Click on the GM Techlink Hyperlink.
4. Click on the Archives Hyperlink at GM Techlink.
- Click on 06-2006 in the Archives Section and Click on the Active Fuel Injector Tester Link in the
June 2006 Techlink Article.
- Click on 11-2006 in the Archives Section and Click on the GM Top Engine Cleaner Replaced Link
in the November 2006 Techlink Article.
Injector Cleaning Procedure
Notice
GM UPPER ENGINE AND FUEL INJECTOR CLEANER is the only injector cleaning agent
recommended. DO NOT USE OTHER CLEANING AGENTS AS THEY MAY CONTAIN
METHANOL, WHICH CAN DAMAGE FUEL SYSTEM COMPONENTS. Under NO circumstances
should the GM Upper Engine and Fuel Injector Cleaner be added to the vehicle fuel tank.
Do not exceed the recommended cleaning solution concentration. Testing has demonstrated that
exceeding the recommended cleaning solution concentration does not improve the effectiveness of
this procedure.
Important
Vehicles with less than 160 km (100 mi) on the odometer should not have the injectors cleaned.
These vehicles should have any out of specification injectors replaced.
1. For 4, 5 and 6 cylinder engines, empty two of the 30 ml (1 oz) reservoirs of the GM Upper
Engine and Fuel Injector Cleaner container into the J
35800-A - Injector Cleaning Tank then add 420 ml (14 oz) of regular unleaded gasoline. If you are
using any other brand of cleaning tank, you will need a total of 60 ml (2 oz) mixed with 420 ml (14
oz) of regular unleaded gasoline.
2. For 8 cylinder engines, empty two of the 30 ml (1 oz) reservoirs of the GM Upper Engine and
Fuel Injector Cleaner container into the J 35800-A Injector Cleaning Tank then add 420 ml (14 oz) of regular unleaded gasoline. If you are using any
other brand of cleaning tank, you will need a total of 60 ml (2 oz) of Upper Engine and Fuel Injector
Cleaner mixed with 420 ml (14 oz) of regular unleaded gasoline. This procedure will need to be
repeated for a second time for an 8 cylinder engine (8 cylinder engines receive 960 ml total fluid 120 ml (4 oz) of Upper Engine and Fuel Injector Cleaner and 840 ml (28 oz) of gasoline.
3. Be sure to follow all additional instructions provided with the tool.
4. Electrically disable the vehicle fuel pump by either removing the fuel pump fuse or the fuel pump
relay and disconnecting the oil pressure switch
connector, if equipped.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Fuel Injector: > 03-06-04-030G > Apr > 09 >
Fuel System - Driveability Issues/MIL/Multiple DTC's > Page 7929
5. Turn the ignition to the OFF position.
6. Relieve fuel pressure and disconnect the fuel feed and return lines at the fuel rail. Plug the fuel
feed and return lines coming off the fuel rail with J
37287, J 42873 or J 42964 as appropriate for the fuel system.
7. Connect the J 35800-A to the vehicle fuel rail.
8. Pressurize the J 35800-A to 510 kPa (75 psi).
9. Start and idle the engine until it stalls, due to lack of fuel. This should take approximately 15-20
minutes.
10. Turn the ignition to the OFF position.
11. Disconnect the J 35800-A from the fuel rail.
12. Reconnect the vehicle fuel pump relay and oil pressure switch connector, if equipped.
13. Remove the J 37287, J 42873 or J 42964 and reconnect the vehicle fuel feed and return lines.
14. Start and idle the vehicle for an additional two minutes to ensure residual injector cleaner is
flushed from the fuel rail and fuel lines.
15. Pour the entire contents of GM Fuel System Treatment Plus (P/N 88861011 [in Canada, P/N
88861012]) into the tank and advise the customer to
fill the tank.
16. Review the benefits of using Top Tier Detergent gasoline with the customer and recommend
that they add a bottle of GM Fuel System Treatment
Plus to the fuel tank at every oil change. Regular use of GM Fuel System Treatment Plus should
keep the customer from having to repeat the injector cleaning procedure.
17. Road test the vehicle to verify that the customer concern has been corrected.
Parts Information
* Only 1/8 of the cost may be claimed for 4 and 6 cylinder engines and 1/4 of the cost for 8 cylinder
engines.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Fuel Injector: > 03-06-04-030G > Apr > 09 >
Fuel System - Driveability Issues/MIL/Multiple DTC's > Page 7930
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Specifications > Electrical Specifications
Fuel Injector: Electrical Specifications
Fuel Injector Resistance.......................................................................................................................
..................................................................11-14 ohms
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Specifications > Electrical Specifications > Page 7933
Fuel Injector: Pressure, Vacuum and Temperature Specifications
Pressure Injector Pressure Drop..........................................................................................................
................................................................20 kPa (3 psi)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions
Fuel Injector: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 7936
Electrical Symbols Part 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 7937
Electrical Symbols Part 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 7938
Electrical Symbols Part 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 7939
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 7940
Electrical Symbols Part 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 7941
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 7942
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 7943
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 7944
Fuel Injector: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Information > Diagrams > Diagram Information and Instructions > Page 7945
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 7946
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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Information > Diagrams > Diagram Information and Instructions > Page 7947
resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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Information > Diagrams > Diagram Information and Instructions > Page 7948
electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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Information > Diagrams > Diagram Information and Instructions > Page 7959
View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Information > Diagrams > Diagram Information and Instructions > Page 7960
Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 7961
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 7962
5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 7963
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 7964
4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 7965
6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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Information > Diagrams > Diagram Information and Instructions > Page 7966
BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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Information > Diagrams > Diagram Information and Instructions > Page 7967
9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Information > Diagrams > Diagram Information and Instructions > Page 7969
Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 7971
View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 7972
View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 7973
6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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Information > Diagrams > Diagram Information and Instructions > Page 7975
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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Information > Diagrams > Diagram Information and Instructions > Page 7977
8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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Information > Diagrams > Diagram Information and Instructions > Page 7978
3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 7982
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Information > Diagrams > Diagram Information and Instructions > Page 7983
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 7984
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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Information > Diagrams > Diagram Information and Instructions > Page 7985
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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Information > Diagrams > Diagram Information and Instructions > Page 7987
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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Information > Diagrams > Diagram Information and Instructions > Page 7988
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 7989
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Information > Diagrams > Diagram Information and Instructions > Page 7990
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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Information > Diagrams > Diagram Information and Instructions > Page 7991
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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Information > Diagrams > Diagram Information and Instructions > Page 7992
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 7993
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 7994
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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Information > Diagrams > Diagram Information and Instructions > Page 7995
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Information > Diagrams > Diagram Information and Instructions > Page 7996
2. Slide the lever lock forward while pressing down on the lever lock release tab.
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Information > Diagrams > Diagram Information and Instructions > Page 7997
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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Information > Diagrams > Diagram Information and Instructions > Page 7998
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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Information > Diagrams > Diagram Information and Instructions > Page 7999
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 8001
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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Information > Diagrams > Diagram Information and Instructions > Page 8002
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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Information > Diagrams > Diagram Information and Instructions > Page 8003
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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Information > Diagrams > Diagram Information and Instructions > Page 8005
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 8006
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 8008
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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Information > Diagrams > Diagram Information and Instructions > Page 8013
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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Information > Diagrams > Diagram Information and Instructions > Page 8015
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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Information > Diagrams > Diagram Information and Instructions > Page 8016
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8021
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8022
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8023
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8024
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8025
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8026
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8027
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8028
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8029
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8030
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8031
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8032
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8033
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Diagrams > Diagram Information and Instructions > Page 8034
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Testing and Inspection > Fuel Injector Diagnosis (W/J39021 or W/Tech 2)
Fuel Injector: Testing and Inspection Fuel Injector Diagnosis (W/J39021 or W/Tech 2)
FUEL INJECTOR DIAGNOSIS (W/J39021 OR W/TECH 2)
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
CIRCUIT/SYSTEM DESCRIPTION
The control module enables the appropriate fuel injector pulse for each cylinder. The ignition
voltage is supplied directly to the fuel injectors. The control module controls each fuel injector by
grounding the control circuit via a solid state device called a driver. A fuel injector coil winding
resistance that is too high or too low will affect the engine driveability. A fuel injector control circuit
DTC may not set, but a misfire may be apparent. The fuel injector coil windings are affected by
temperature. The resistance of the fuel injector coil windings will increase as the temperature of the
fuel injector increases. When performing the fuel injector balance test, the scan tool is first used to
energize the fuel pump relay. The fuel injector tester or the scan tool is then used to pulse each
injector for a precise amount of time, allowing a measured amount of the fuel to be injected. This
causes a drop in the system fuel pressure that can be recorded and used to compare each injector.
DIAGNOSTIC AIDS
- Monitoring the misfire current counters, or misfire graph, may help to isolate the fuel injector that
is causing the condition.
- Operating the vehicle over a wide temperature range may help isolate the fuel injector that is
causing the condition.
- Perform the fuel injector coil test within the conditions of the customer's concern. A fuel injector
condition may only be apparent at a certain temperature, or under certain conditions.
COMPONENT TESTING
Fuel Injector Coil Test 1. Observe the ECT Sensor parameter with a scan tool. The ECT sensor
should be 10-32°C (50-90°F).
- If the ECT Sensor parameter is not within 10-32°C (50-90°F), go to step 3.
2. Measure the resistance of each fuel injector with a DMM. The resistance of each fuel injector
should be 11-14 ohms.
- If the resistance of any fuel injector is not 11-14 ohms, replace the fuel injector.
3. Measure and record the resistance of each fuel injector with a DMM. Subtract the lowest
resistance value from the highest resistance value. The
difference between the lowest value and the highest value should be equal to or less than 3 ohms.
If the difference is equal to or less than 3 ohms, perform the Fuel Injector Balance Test-Fuel
Pressure Test.
- If the difference is more than 3 ohms, continue with the Fuel Injector Coil Test.
4. Add all of the fuel injector resistance values to obtain a total resistance value. Divide the total
resistance value by the number of fuel injectors to
obtain an average resistance value. Subtract the lowest individual fuel injector resistance value
from the average resistance value. Compute the difference between the highest individual fuel
injector resistance value and the average resistance value. Replace the fuel injector that displays the greatest resistance difference above or below the
average.
5. Perform the Fuel Injector Balance Test-Fuel Pressure Test.
IMPORTANT: DO NOT perform this test if the engine coolant temperature (ECT) is above 94°C (201°F). Irregular
fuel pressure readings may result due to hot soak fuel boiling.
- Verify that adequate fuel is in the fuel tank before proceeding with this diagnostic.
- Before proceeding with this test review the User Manual CH 48027-5 for Safety Information and
Instructions.
Fuel Injector Balance Test-Fuel Pressure Test 1. Install a fuel pressure gage. 2. Turn ON the
ignition, with the engine OFF.
3. IMPORTANT:
- The fuel pump relay may need to be commanded ON a few times in order to obtain the highest
possible fuel pressure.
- DO NOT start the engine.
Command the fuel pump relay ON with a scan tool.
4. Observe the fuel pressure gage with the fuel pump commanded ON. The fuel pressure should
be 384-425 kPa (56-62 psi).
- If the fuel pressure is not 384-425 kPa (56-62 psi), refer to Fuel System Diagnosis. See:
Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics
5. Monitor the fuel pressure gage for one minute. The fuel pressure should not decrease more than
34 kPa (5 psi).
- If the fuel pressure decreases more than 34 kPa (5 psi), refer to Fuel System Diagnosis. See:
Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics
6. Perform the Fuel Injector Balance Test with Special Tool or the Fuel Injector Balance Test with
Tech 2.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Testing and Inspection > Fuel Injector Diagnosis (W/J39021 or W/Tech 2) > Page 8037
Fuel Injector Balance Test with Special Tool 1. Set the amperage supply selector switch on the fuel
injector tester to the Balance Test 0.5-2.5 amp position. 2. Disconnect the multi-way harness
connector of the fuel injectors. 3. Connect the J 39021, the J 39021-210, and the J 39021-410 to
the fuel injector multi-way connector. 4. Command the fuel pump relay ON and then OFF three
times with a scan tool. On the last command, as the fuel pressure begins to slowly degrade
and stabilize, select a fuel pressure within 34 kPa (5 psi) of the maximum pump pressure. Record
this fuel pressure. This is the starting pressure at which you will pulse each injector.
5. Command the fuel pump relay ON one more time and energize the fuel injector by depressing
the Push to Start Test button on the J 39021 at the
previously selected pressure.
6. After the injector stops pulsing, select Min from the Display Mode and record the Min pressure.
7. IMPORTANT: New test results will not be recorded if the Min/Max results are not cleared after
each injector is tested.
Clear the Min/Max results.
8. Select Normal from the Display Mode. 9. Repeat steps 3 and 5 through 8 for each fuel injector.
10. Perform the Pressure Drop Calculation.
Fuel Injector Balance Test With Tech 2
1. IMPORTANT: Vehicle's with thief immobilizer disable the test.
Command the fuel pump relay ON and then OFF three times with a scan tool. On the last
command, as the fuel pressure begins to slowly degrade and stabilize, select a fuel pressure within
34 kPa (5 psi) of the maximum pump pressure. Record this fuel pressure. This is the starting
pressure at which you will pulse each injector.
2. With a scan tool, select the Fuel Injector Balance Test function within the Special Functions
menu. 3. Select an injector to be tested. 4. Press Enter to prime the fuel system. 5. Energize the
fuel injector by depressing the Pulse Injector button on the scan tool at the previously selected
pressure. 6. After the injector stops pulsing, select Min from the Display Mode on the CH-48027
and record the Min pressure.
7. IMPORTANT: New test results will not be recorded if the Min/Max results are not cleared after
each injector is tested.
Clear the Min/Max results on the CH-48027.
8. Select Normal from the Display Mode on the CH-48027. 9. Press Enter on the scan tool to bring
you back to the Select Injector screen.
10. Repeat steps 3 through 9 for each fuel injector. 11. Perform the Pressure Drop Calculation.
Pressure Drop Calculation
1. Subtract the minimum pressure from the starting pressure for one fuel injector. The result is the
pressure drop value. 2. Obtain a pressure drop value for each fuel injector. 3. Add all of the
individual pressure drop values except for the injector suspected of being faulty. This is the total
pressure drop. 4. Divide the total pressure drop by the number of fuel injectors that were added
together. This is the average pressure drop. The difference between
any individual pressure drop and the average pressure drop should not be more than 20 kPa (3
psi). -
If the difference between any individual pressure drop and the average pressure drop is more than
20 kPa (3 psi), replace the fuel injector.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. See:
Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/Verification Tests and Procedures
Fuel Injector Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Testing and Inspection > Fuel Injector Diagnosis (W/J39021 or W/Tech 2) > Page 8038
Fuel Injector: Testing and Inspection Fuel Injector Diagnosis (W/CH47976)
FUEL INJECTOR DIAGNOSIS (W/CH47976)
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
CIRCUIT/SYSTEM DESCRIPTION
The control module enables the appropriate fuel injector pulse for each cylinder. The ignition
voltage is supplied directly to the fuel injectors. The control module controls each fuel injector by
grounding the control circuit via a solid state device called a driver. A fuel injector coil winding
resistance that is too high or too low will affect the engine driveability. A fuel injector control circuit
DTC may not set, but a misfire may be apparent. The fuel injector coil windings are affected by
temperature. The resistance of the fuel injector coil windings will increase as the temperature of the
fuel injector increases. The Active Fuel Injector Tester (AFIT), CH 47976, is used to test the fuel
pump, fuel system leak down, and the fuel injectors. Following the User Guide, CH 47976-11, and
the on screen prompts or selections, will indicate the steps required to perform each of the
available tests. The tester will perform all of the tests automatically and display results of the test.
The results can also be down loaded for storage and printing.
COMPONENT TESTING
Fuel Injector Coil Test 1. Observe the ECT Sensor parameter with a scan tool. The ECT sensor
should be 10-32°C (50-90°F).
- If the ECT Sensor parameter is not within 10-32°C (50-90°F), go to step 3.
2. Measure the resistance of each fuel injector with a DMM. The resistance of each fuel injector
should be 11-14 ohms.
- If the resistance of any fuel injector is not 11-14 ohms, replace the fuel injector.
3. Measure and record the resistance of each fuel injector with a DMM. Subtract the lowest
resistance value from the highest resistance value. The
difference between the lowest value and the highest value should be equal to or less than 3 ohms.
If the difference is equal to or less than 3 ohms, perform the AFIT Test Procedure.
- If the difference is more than 3 ohms, continue with the Fuel Injector Coil Test.
4. Add all of the fuel injector resistance values to obtain a total resistance value. Divide the total
resistance value by the number of fuel injectors to
obtain an average resistance value. Subtract the lowest individual fuel injector resistance value
from the average resistance value. Compute the difference between the highest individual fuel
injector resistance value and the average resistance value. Replace the fuel injector that displays the greatest resistance difference above or below the
average.
5. Perform the AFIT Test Procedure.
IMPORTANT:
- DO NOT perform this test if the engine coolant temperature (ECT) is above 94°C (201°F).
Irregular fuel pressure readings may result due to hot soak fuel boiling.
- Verify that adequate fuel is in the fuel tank before proceeding with this diagnostic.
AFIT Test Procedure 1. Turn OFF all accessories. 2. Turn OFF the ignition. 3. Install the AFIT.
Refer to the AFIT User Guide. 4. Turn ON the AFIT and select the vehicle. 5. Turn ON the ignition
and perform the Injector Test.
- If the AFIT aborts testing due to fuel pressure or fuel leak down, refer to Fuel System Diagnosis.
See: Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics
6. View the test results.
- If any injector exceeds the recommended tolerance, replace the injector(s).
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. See:
Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/Verification Tests and Procedures
Fuel Injector Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Service and Repair > Procedures
Fuel Injector: Procedures
FUEL INJECTOR CLEANING
TOOLS REQUIRED
- J 37287 Fuel Line Shut-Off Adapters
- J 35800-A Fuel Injector Cleaner
- J 42873-1 3/8 Fuel Line Shut-Off Valve
- J 42873-2 5/16 Return Pipe Shut-Off Valve
- J 42964-1 3/8 Fuel Pipe Shut-Off Valve
- J 42964-2 5/16 Fuel Pipe Shut-Off Valve
NOTE: GM Top-Engine Cleaner is the only injector cleaning agent recommended. Do not use other
cleaning agents, as they may contain methanol which can damage fuel system components.
- Under NO circumstances should the top engine cleaner be added to the vehicles fuel tank, as it
may damage the fuel pump and other system components.
- Do not exceed a 10 percent cleaning solution concentration. Higher concentrations may damage
fuel system components. Testing has demonstrated that exceeding the 10 percent cleaning
solution concentration does not improve the effectiveness of this procedure.
IMPORTANT:
- Vehicles with less than 160 km (100 mi) on the odometer should not have the injectors cleaned.
These vehicles should have the injectors replaced.
- During this procedure you will need a total of 960 ml (32.4 oz) of cleaning solution. That is 2 tanks
of solution for the J 35800-A. Other brands of tools may have a different capacity and would
therefore require more or less tanks to complete the procedure. You must use all 960 ml (32.4 oz)
of solution to ensure complete injector cleaning.
1. Obtain J 35800-A (2).
2. IMPORTANT: Make sure the valve at the bottom of the canister (3) is closed.
For US dealers, empty 2 pre-measured GM Top-Engine Cleaner containers, 24 ml (0.812 oz) each,
GM P/N 12346535, into the J 35800-A.
3. For Canadian dealers, measure and dispense 48 ml (1.62 oz) of Top-Engine Cleaner, Canadian
P/N 992872, into the J 35800-A. 4. If you are using any other brand of tank you will need a total of
96 ml (3.24 oz) of Top-Engine Cleaner mixed with 864 ml (29.16 oz) of regular
unleaded gasoline.
5. Fill the injector cleaning tank with regular unleaded gasoline. Be sure to follow all additional
instructions provided with the tool. 6. Electrically disable the vehicle fuel pump by removing the fuel
pump relay and disconnecting the oil pressure switch connector, if equipped. 7. Disconnect the fuel
feed and return line, if equipped, at the fuel rail. Plug the fuel feed and return line, if equipped,
coming off the fuel rail with J
37287, or J 42964-1, and J 42964-2 or J 42873-1, and J 42873-2 as appropriate for the fuel
system.
8. Connect the J 35800-A to the vehicle fuel rail. 9. Pressurize the J 35800-A to 510 kPa (75 psi).
10. Start and idle the engine until it stalls due to lack of fuel. This should take approximately 15-20
minutes. 11. Disconnect J 35800-A from the fuel rail. 12. Reconnect the vehicle fuel pump relay
and oil pressure switch connector, if equipped. 13. Remove J 37287 or J 42964-1, and J 42964-2
or J 42873-1, and J 42873-2 and reconnect the vehicle fuel feed and return lines. 14. Start and idle
the vehicle for an additional 2 minutes to ensure residual injector cleaner is flushed from the fuel
rail and fuel lines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Service and Repair > Procedures > Page 8041
15. Repeat steps 1-5 of the Injector Balance Test, and record the fuel pressure drop from each
injector. 16. Subtract the lowest fuel pressure drop from the highest fuel pressure drop. If the value
is 15 kPa (2 psi) or less, no additional action is required. If
the value is greater than 15 kPa (2 psi), replace the injector with the lowest fuel pressure drop.
17. Add one ounce of Port Fuel Injector Cleaner, GM P/N 12345104 (Canadian P/N 10953467), to
the vehicle fuel tank for each gallon of gasoline
estimated to be in the fuel tank. Instruct the customer to add the reminder of the bottle of Port Fuel
Injector Cleaner to the vehicle fuel tank at the next fill-up.
18. Advise the customer to change brands of fuel and to add GM Port Fuel Injector Cleaner every 5
000 km (3,000 mi). GM Port Fuel Injector
Cleaner contains the same additives that the fuel companies are removing from the fuel to reduce
costs. Regular use of GM Port Fuel Injector Cleaner should keep the customer from having to
repeat the injector cleaning procedure.
19. Road test the vehicle to verify that the customer concern has been corrected.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Service and Repair > Procedures > Page 8042
Fuel Injector: Removal and Replacement
Fuel Injector Sight Shield Replacement
Fuel Injector Sight Shield Replacement
Removal Procedure
1. Remove the injector sight shield from the studs.
2. If replacing the sight shield studs, remove the studs from the intake manifold.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Service and Repair > Procedures > Page 8043
Notice: Refer to Fastener Notice .
1. If the injector sight shield studs were removed, install the studs to the intake manifold.
Tighten the studs to 10 N.m (89 lb in).
2. Install the injector sight shield to the studs.
Fuel Injector Replacement
FUEL INJECTOR REPLACEMENT
REMOVAL PROCEDURE
NOTE: Use care in removing the fuel injectors in order to prevent damage to the fuel injector
electrical connector pins or the fuel injector nozzles. Do not immerse the fuel injector in any type of
cleaner. The fuel injector is an electrical component and may be damaged by this cleaning method.
IMPORTANT: If the fuel injectors are found to be leaking, the engine oil may be contaminated with
fuel.
1. Remove the fuel rail.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Component
Information > Service and Repair > Procedures > Page 8044
2. Remove the fuel injector retaining clip (1). 3. Remove the fuel injector (3) from the fuel rail. 4.
Remove the fuel injector upper O-ring (2). 5. Remove the fuel injector lower O-ring (4).
INSTALLATION PROCEDURE
1. Install the fuel injector upper O-ring (2). 2. Install the fuel injector lower O-ring (4). 3. Lubricate
the fuel injector upper O-ring (2) using GM P/N 12345616 (Canadian P/N 993182). 4. Install the
fuel injector (3) to the fuel rail. 5. Install the fuel injector retaining clip (1). 6. Install the fuel rail.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Line Coupler >
Component Information > Service and Repair > Metal Collar Quick Connect Fitting Service
Fuel Line Coupler: Service and Repair Metal Collar Quick Connect Fitting Service
METAL COLLAR QUICK CONNECT FITTING SERVICE
TOOLS REQUIRED
J 37088-A Fuel Line Disconnect Tool Set
REMOVAL PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
1. Relieve the fuel system pressure before servicing any fuel system connection. Refer to the Fuel
Pressure Relief. 2. Remove the retainer from the quick-connect fitting.
3. CAUTION:
- Refer to Fuel and Evaporative Emission Hose/Pipe Connection Cleaning Notice.
- Refer to Safety Glasses Caution.
Blow dirt out of the fitting using compressed air.
4. Choose the correct tool from the J 37088-A for the size of the fitting. Insert the tool into the
female connector, then push inward in order to release
the locking tabs.
5. CAUTION: Refer to Relieving Fuel Pressure Caution.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Line Coupler >
Component Information > Service and Repair > Metal Collar Quick Connect Fitting Service > Page 8049
Pull the connection apart.
6. Use a clean shop towel in order to wipe off the male pipe end. 7. Inspect both ends of the fitting
for dirt and burrs. Clean or replace the components as required.
INSTALLATION PROCEDURE
1. CAUTION: Refer to Fuel Pipe Fitting Caution.
Apply a few drops of clean engine oil to the male pipe end.
2. Push both sides of the fitting together in order to snap the retaining tabs into place.
3. Once installed, pull on both sides of the fitting in order to make sure the connection is secure.
4. Install the retainer to the quick-connect fitting.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Line Coupler >
Component Information > Service and Repair > Metal Collar Quick Connect Fitting Service > Page 8050
Fuel Line Coupler: Service and Repair Plastic Collar Quick Connect Fitting Service
PLASTIC COLLAR QUICK CONNECT FITTING SERVICE
REMOVAL PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
IMPORTANT: There are several types of plastic collar fuel and evaporative emission quick connect
fittings used on this vehicle. Bartholomew (1)
- Q Release (2)
- Squeeze to Release (3)
- Sliding Retainer (4)
The following instructions apply to all of these types of plastic collar quick connect fittings except
where indicated. 1. Relieve the fuel system pressure before servicing any fuel system connection.
Refer to the Fuel Pressure Relief.
2. CAUTION:
- Refer to Fuel and Evaporative Emission Hose/Pipe Connection Cleaning Notice.
- Refer to Safety Glasses Caution.
Using compressed air, blow any dirt out of the quick-connect fitting.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Line Coupler >
Component Information > Service and Repair > Metal Collar Quick Connect Fitting Service > Page 8051
3. This step applies to Bartholomew style connectors ONLY. Squeeze the plastic quick connect
fitting release tabs.
4. This step applies to Q Release style connectors ONLY. Release the fitting by Pushing the tab
toward the other side of the slot in the fitting.
5. This step applies to Squeeze to Release style connectors ONLY. Squeeze where indicated by
arrows on both sides of the plastic ring surrounding
the quick connect fitting.
6. This step applies to Sliding Retainer style connectors ONLY. Release the fitting by pressing on
one side of the release tab causing it to push in
slightly. If the tab doesn't move try pressing the tab in from the opposite side. The tab will only
move in one direction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Line Coupler >
Component Information > Service and Repair > Metal Collar Quick Connect Fitting Service > Page 8052
7. CAUTION: Refer to Relieving Fuel Pressure Caution.
Pull the connection apart.
INSTALLATION PROCEDURE
1. CAUTION: Refer to Fuel Pipe Fitting Caution.
Apply a few drops of clean engine oil to the male connection end.
2. Push both sides of the quick-connect fitting together in order to cause the retaining feature to
snap into place.
3. Once installed, pull on both sides of the quick-connect fitting in order to make sure the
connection is secure.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pressure >
System Information > Specifications
Fuel Pressure: Specifications
Fuel Pressure (Key ON, Engine OFF)..................................................................................................
..............................................384-425 kPa (56-62 psi)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pressure >
System Information > Specifications > Page 8057
Fuel Pressure: Service Precautions
Relieving Fuel Pressure Caution
Caution: Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel
system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a
small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pressure >
System Information > System Diagnosis > Fuel Pressure Gage Installation and Removal
Fuel Pressure: Testing and Inspection Fuel Pressure Gage Installation and Removal
FUEL PRESSURE GAGE INSTALLATION AND REMOVAL
TOOLS REQUIRED
CH-48027 Digital Pressure Gage
INSTALLATION PROCEDURE
CAUTION: Refer to Gasoline/Gasoline Vapors Caution.
- Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in
order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small
amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the
connections. In order to reduce the risk of personal injury, cover the fuel system components with a
shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an
approved container when the disconnection is complete.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Connect the CH-48027-1 (1)
to the CH-48027-2 (2). 3. Remove the shop towel from around the fuel rail service port, and place
in an approved gasoline container. 4. Perform any tests and/or diagnostics as needed. For the
proper usage of the CH-48027, refer to the manufacture's directions.
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pressure >
System Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 8060
1. Relieve the fuel system pressure, if required. Perform the following steps:
1. CAUTION: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of
fire and personal injury. The towel
will absorb any fuel leakage that occurs during the connection of the fuel pressure gage. Place the
towel in an approved container when the connection of the fuel pressure gage is complete.
Wrap a shop towel around the fuel rail service port.
2. Place the hose on the CH-48027-2 (2) into an approved gasoline container. 3. Open the valve on
the CH-48027-2 (2) in order to bleed any fuel from the fuel rail. 4. Close the valve on the
CH-48027-2 (2). 5. Remove the hose on the CH-48027-2 (2) from the approved gasoline container.
6. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline
container.
2. NOTE: Clean all of the following areas before performing any disconnections in order to avoid
possible contamination in the system:
- The fuel pipe connections
- The hose connections
- The areas surrounding the connections
Disconnect the CH-48027-1 (1) from the CH-48027-2 (2).
3. Disconnect the CH-48027-2 (2) from the CH-48027-3 (4). 4. Disconnect the CH-48027-3 (4) from
the fuel rail service port. 5. Install the fuel rail service port cap. 6. Install the engine cover, if
required. 7. Tighten the fuel fill cap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pressure >
System Information > System Diagnosis > Fuel Pressure Gage Installation and Removal > Page 8061
Fuel Pressure: Testing and Inspection Fuel System Diagnosis
FUEL SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
CIRCUIT/SYSTEM DESCRIPTION
The control module enables the fuel pump relay when the ignition switch is turned ON. The control
module will disable the fuel pump relay within 2 seconds unless the control module detects ignition
reference pulses. The control module continues to enable the fuel pump relay as long as ignition
reference pulses are detected. The control module disables the fuel pump relay within 2 seconds if
ignition reference pulses cease to be detected and the ignition remains ON.The fuel system is a
returnless on-demand design. The fuel pressure regulator is a part of the primary fuel tank module,
eliminating the need for a return pipe from the engine. A returnless fuel system reduces the internal
temperature of the fuel tank by not returning hot fuel from the engine to the fuel tank. Reducing the
internal temperature of the fuel tank results in lower evaporative emissions. An electric turbine style
fuel pump attaches to the primary fuel tank module inside the fuel tank. The fuel pump supplies
high pressure fuel through the fuel filter, past the fuel pressure regulator, and through the fuel feed
pipe to the fuel injection system. The fuel pressure regulator has a T-joint that diverts the needed
fuel to the fuel rail with the unused fuel dropping back into the reservoir of the primary fuel tank
module. The primary fuel tank module contains a reverse flow check valve. The check valve and
the fuel pressure regulator maintain fuel pressure in the fuel feed pipe and the fuel rail in order to
prevent long cranking times. The primary fuel tank module also contains a primary jet pump and a
secondary jet pump. Fuel pump flow loss, caused by vapor expulsion in the pump inlet chamber, is
diverted to the primary jet pump and the secondary jet pump through a restrictive orifice located on
the pump cover. The primary jet pump fills the reservoir of the primary fuel tank module. The
secondary jet pump creates a venturi action which causes the fuel to be drawn from the secondary
side of the fuel tank, through the fuel transfer pipe, to the primary side of the fuel tank.
CIRCUIT/SYSTEM VERIFICATION
IMPORTANT: Inspect the fuel system for damage or external leaks before proceeding.
- Verify that adequate fuel is in the fuel tank before proceeding.
- The fuel pump relay may need to be commanded ON a few times in order to obtain the highest
possible fuel pressure.
- Before proceeding with this test review the User Manual CH 48027-5 for Safety Information and
Instructions.
1. Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool. You should hear
the fuel pump turn ON and OFF.
- If the fuel pump does not operate, refer to Fuel Pump Electrical Circuit Diagnosis. See:
Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics
2. Ignition OFF, all accessories OFF, install a CH-48027. 3. Ignition ON, engine OFF, command the
fuel pump relay ON with a scan tool. Verify the fuel pressure is between 384-425 kPa (56-62 psi)
and
does not decrease more than 34 kPa (5 psi) in 1 minute.
CIRCUIT/SYSTEM TESTING
1. IMPORTANT:
- The fuel pump relay may need to be commanded ON a few times in order to obtain the highest
possible fuel pressure.
- DO NOT start the engine.
Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool and observe the fuel
pressure gage while the fuel pump is operating. Verify the fuel pressure is between 384-425 kPa
(56-62 psi). If the fuel pressure is greater than the specified range, replace the fuel pump module.
- If the fuel pressure is less than the specified range, test, inspect, and repair the items listed
below. If all items test normal, replace the fuel pump module.
- Restricted fuel feed pipe
- Restricted or plugged strainer
- Inspect the harness connectors and the ground circuits of the fuel pump for poor connections.
2. Verify that the fuel pressure does not decrease more than 34 kPa (5 psi) in 1 minute.
1. If the fuel pressure decreases more than the specified value, perform the following procedure: 2.
Ignition OFF, relieve the fuel pressure. Refer to Fuel Pressure Relief. See: Fuel Filter/Fuel
Pressure Release/Service and Repair 3. Install the J 37287 between the fuel feed pipe and the fuel
rail. 4. Open the valve on the J 37287. 5. Ignition ON, command the fuel pump relay ON with a
scan tool and bleed the air from the CH-48027. 6. Command the fuel pump relay ON and then OFF
with a scan tool. 7. Close the valve on the J 37287. 8. Monitor the fuel pressure for 1 minute.
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- If the fuel pressure decreases more than 34 kPa (5 psi) within the specified time, locate and
replace the leaking fuel injector(s).
- If the fuel pressure does not decrease more than 34 kPa (5 psi) within the specified time, replace
the fuel pump module.
3. Relieve the fuel pressure to 69 kPa (10 psi). Verify that the fuel pressure does not decrease
more than 14 kPa (2 psi) in 5 minutes.
- If the fuel pressure decreases more than the specified value, replace the primary fuel pump
module.
4. Operate the vehicle within the conditions of the customer's concern while monitoring the fuel
pressure with the CH-48027. The fuel pressure
should not drop off during acceleration, cruise or hard cornering. If the fuel pressure drops off, test, inspect, and repair the items listed below. If all items test normal,
replace the primary fuel pump module.
- Restricted fuel feed pipe
- Restricted or plugged strainer
- Inspect the harness connectors and the ground circuits of the fuel pump for poor connections
5. If the fuel system tests normal, refer to Symptoms - Computers and Control Systems. See:
Computers and Control Systems/Testing and
Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine Controls
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Fuel Hose/Pipes Replacement - Chassis
- Fuel Injector Replacement
- Fuel Hose/Pipes Replacement - Engine Compartment
- Primary Fuel Tank Module Replacement See: Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests and
Procedures
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> Component Information > Diagrams > Diagram Information and Instructions
Fuel Pump Relay: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Fuel Pump Relay: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8088
1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8092
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8096
6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8100
Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8111
3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8113
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8116
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8118
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8119
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8120
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8122
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8123
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8127
2. Slide the lever lock forward while pressing down on the lever lock release tab.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8128
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8134
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8135
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8137
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8138
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8139
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8140
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8141
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8142
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8143
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8144
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8145
View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8146
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8147
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8148
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8149
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8150
must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8151
If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8152
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8153
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8154
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8155
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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> Component Information > Diagrams > Diagram Information and Instructions > Page 8157
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pump Relay
> Component Information > Diagrams > Diagram Information and Instructions > Page 8158
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pump Relay
> Component Information > Diagrams > Diagram Information and Instructions > Page 8159
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pump Relay
> Component Information > Diagrams > Diagram Information and Instructions > Page 8160
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pump Relay
> Component Information > Diagrams > Diagram Information and Instructions > Page 8161
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pump Relay
> Component Information > Diagrams > Diagram Information and Instructions > Page 8162
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pump Relay
> Component Information > Diagrams > Diagram Information and Instructions > Page 8163
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pump Relay
> Component Information > Diagrams > Diagram Information and Instructions > Page 8164
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pump Relay
> Component Information > Diagrams > Diagram Information and Instructions > Page 8165
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Rail > Component
Information > Service Precautions
Fuel Rail: Service Precautions
Fuel Rail Notice
Notice:
* Use care when servicing the fuel system components, especially the fuel injector electrical
connectors, the fuel injector tips, and the injector O-rings. Plug the inlet and the outlet ports of the
fuel rail in order to prevent contamination.
* Do not use compressed air to clean the fuel rail assembly as this may damage the fuel rail
components.
* Do not immerse the fuel rail assembly in a solvent bath in order to prevent damage to the fuel rail
assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Rail > Component
Information > Service Precautions > Page 8169
Fuel Rail: Service and Repair
FUEL RAIL ASSEMBLY REPLACEMENT
REMOVAL PROCEDURE
CAUTION: In order to reduce the risk of fire and personal injury that may result from a fuel leak,
always install the fuel injector O-rings in the proper position. If the upper and lower O-rings are
different colors (black and brown), be sure to install the black O-ring in the upper position and the
brown O-ring in the lower position on the fuel injector. The O-rings are the same size but are made
of different materials.
IMPORTANT: When servicing the fuel rail assembly, precautions must be taken to prevent dirt and
other contaminants from entering the fuel passages. It is recommended that the fittings be capped,
and the holes be plugged during servicing.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Remove the upper intake
manifold.
3. Disconnect the engine fuel feed pipe (1) at the fuel rail (4). 4. Disconnect the main fuel injector
harness electrical connector. 5. Disconnect the coolant temperature sensor and camshaft position
sensor electrical connectors 6. Disconnect the electrical connectors from the fuel injectors.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Rail > Component
Information > Service Precautions > Page 8170
7. Remove the fuel rail retaining bolts (2). 8. Remove the fuel rail assembly (1). 9. Remove the
injector O-ring seal from the spray tip end of each injector.
10. If removing the fuel injectors from the fuel rail is necessary.
INSTALLATION PROCEDURE
NOTE: Use care when servicing the fuel system components, especially the fuel injector electrical
connectors, the fuel injector tips, and the injector O-rings. Plug the inlet and the outlet ports of the
fuel rail in order to prevent contamination.
- Do not use compressed air to clean the fuel rail assembly as this may damage the fuel rail
components.
- Do not immerse the fuel rail assembly in a solvent bath in order to prevent damage to the fuel rail
assembly.
1. If the fuel injectors were removed from the fuel rail.
2. Lubricate the fuel injector O-rings using GM P/N 12345616, (Canadian P/N 993182). 3. Install
the fuel injector nozzles into the lower intake manifold injector bores. 4. Press on the fuel rail (1)
using the palms of both hands until the fuel injectors are fully seated.
5. 1mNOTE: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Rail > Component
Information > Service Precautions > Page 8171
Install the fuel rail attaching bolts (2).
Tighten the bolt to 10 N.m (89 lb in).
6. Install the injector electrical harness to the fuel rail. 7. Apply lubricant to the fuel injector electrical
connectors. GM P/N 12377900, (Canadian P/N 10953529). 8. Connect the fuel injector electrical
connectors. 9. Connect the coolant temperature sensor and camshaft position sensor electrical
connectors
10. Connect the main fuel injector electrical harness connector.
11. Connect the fuel feed pipe (1) at the fuel rail (4). 12. Install the upper intake manifold. 13.
Connect the negative battery cable. 14. Inspect for fuel leaks.
1. Turn ON the ignition for 2 seconds. 2. Turn OFF the ignition for 10 seconds. 3. Turn ON the
ignition. 4. Inspect for fuel leaks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Return Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis
Fuel Return Line: Service and Repair Fuel Hose/Pipes Replacement - Chassis
FUEL HOSE/PIPES REPLACEMENT - CHASSIS
REMOVAL PROCEDURE
CAUTION:
- Do not allow smoking or the use of open flames in the area where work on the fuel or EVAP
system is taking place. Anytime work is being done on the fuel system, disconnect the negative
battery cable, except for those tests where battery voltage is required.
- Refer to Gasoline/Gasoline Vapors Caution.
- Whenever fuel lines are removed, catch fuel in an approved container. Container opening must
be a minimum of 300 mm (12 in) diameter to adequately catch the fluid.
NOTE: Fuel/Vapor lines cannot be spliced or repaired. The line must be replaced (if damaged) with
the same type of line.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Disconnect the negative
battery terminal.
3. Disconnect the engine compartment fuel hose/pipe (2) from the chassis fuel hose/pipe (3). 4.
Cap the fuel hose/pipes to prevent contamination and fuel leakage. 5. Raise the vehicle. Refer to
Vehicle Lifting.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Return Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis > Page 8176
6. Disconnect the chassis fuel hose/pipe (2) from the fuel tank. 7. Cap the fuel hose/pipes to
prevent contamination and fuel leakage.
8. Release the pipe retainers (1) from the vehicle underbody. 9. Remove the fuel hose/pipe from
the pipe retainers.
10. Remove the fuel hose/pipe from the vehicle.
INSTALLATION PROCEDURE
1. Install the fuel hose/pipe to the vehicle. 2. Install the fuel hose/pipe from the pipe retainers. 3.
Attach the pipe retainers (1) to the vehicle underbody. 4. Remove the caps from the fuel pipes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Return Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis > Page 8177
5. Connect the chassis fuel hose/pipe (2) to the fuel tank. 6. Lower the vehicle from the hoist. 7.
Remove the caps from the fuel pipes.
8. Connect the engine compartment fuel hose/pipe (2) to the chassis fuel hose/pipe (3). 9. Connect
the negative battery terminal.
10. Prime the fuel system.
1. Cycle the ignition ON for 5 seconds and then OFF for 10 seconds. Repeat cycling twice. 2.
Crank the engine until it starts. The maximum starter motor cranking time is 20 seconds. 3. If the
engine does not start, repeat steps.
11. Run the engine and check the system for leaks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Return Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis > Page 8178
Fuel Return Line: Service and Repair Fuel Hose/Pipes Replacement - Engine Compartment
FUEL HOSE/PIPES REPLACEMENT - ENGINE COMPARTMENT
REMOVAL PROCEDURE
NOTE: Do not attempt to repair the engine fuel feed pipe or the engine fuel return pipe. Replace a
damaged engine fuel feed pipe or the engine fuel return pipe.
1. Remove the exhaust crossover pipe. 2. Relieve the fuel system pressure. Refer to Fuel Pressure
Relief.
3. Remove the 2 nuts securing the fuel hose/pipe to the engine and transaxle. 4. Remove the fuel
hose/pipe retainers from the threaded studs on the engine and transaxle. 5. Clean all engine fuel
pipe connections and areas surrounding the engine fuel pipe connections before disconnecting the
engine fuel pipe
connections to avoid possible contamination of the fuel system.
6. Disconnect the engine compartment fuel hose/pipe (2) from the chassis fuel hose/pipe (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Return Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis > Page 8179
7. Cap the fuel hose/pipes to prevent contamination and fuel leakage.
8. Disconnect the engine compartment fuel hose/pipe (1) from the fuel rail (4). 9. Cap the fuel
hose/pipes to prevent contamination and fuel leakage.
10. Remove the fuel hose/pipe from the fuel pipe retainer (2).
INSTALLATION PROCEDURE
1. Position the fuel hose/pipe to the engine. 2. Install the fuel hose/pipe retainers to the threaded
studs on the engine and transaxle.
3. NOTE: Refer to Fastener Notice.
Install the 2 nuts securing the fuel hose/pipe to the engine and transaxle.
Tighten the nuts to 28 N.m (21 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Return Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis > Page 8180
4. Install the fuel hose/pipe to the fuel pipe retainer (2). 5. Remove the caps from the fuel pipes. 6.
Connect the engine compartment fuel hose/pipe (1) to the fuel rail (4).
7. Remove the caps from the fuel pipes. 8. Connect the engine compartment fuel hose/pipe (2) to
the chassis fuel hose/pipe (3). 9. Install the exhaust crossover pipe.
10. Prime the fuel system.
1. Cycle the ignition ON for 5 seconds and then OFF for 10 seconds. 2. Repeat step 7.1 twice. 3.
Crank the engine until it starts. The maximum starter motor cranking time is 20 seconds. 4. If the
engine does not start, repeat steps 7.1-7.4.
11. Run the engine and check for fuel system leaks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Supply Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis
Fuel Supply Line: Service and Repair Fuel Hose/Pipes Replacement - Chassis
FUEL HOSE/PIPES REPLACEMENT - CHASSIS
REMOVAL PROCEDURE
CAUTION:
- Do not allow smoking or the use of open flames in the area where work on the fuel or EVAP
system is taking place. Anytime work is being done on the fuel system, disconnect the negative
battery cable, except for those tests where battery voltage is required.
- Refer to Gasoline/Gasoline Vapors Caution.
- Whenever fuel lines are removed, catch fuel in an approved container. Container opening must
be a minimum of 300 mm (12 in) diameter to adequately catch the fluid.
NOTE: Fuel/Vapor lines cannot be spliced or repaired. The line must be replaced (if damaged) with
the same type of line.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. 2. Disconnect the negative
battery terminal.
3. Disconnect the engine compartment fuel hose/pipe (2) from the chassis fuel hose/pipe (3). 4.
Cap the fuel hose/pipes to prevent contamination and fuel leakage. 5. Raise the vehicle. Refer to
Vehicle Lifting.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Supply Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis > Page 8185
6. Disconnect the chassis fuel hose/pipe (2) from the fuel tank. 7. Cap the fuel hose/pipes to
prevent contamination and fuel leakage.
8. Release the pipe retainers (1) from the vehicle underbody. 9. Remove the fuel hose/pipe from
the pipe retainers.
10. Remove the fuel hose/pipe from the vehicle.
INSTALLATION PROCEDURE
1. Install the fuel hose/pipe to the vehicle. 2. Install the fuel hose/pipe from the pipe retainers. 3.
Attach the pipe retainers (1) to the vehicle underbody. 4. Remove the caps from the fuel pipes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Supply Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis > Page 8186
5. Connect the chassis fuel hose/pipe (2) to the fuel tank. 6. Lower the vehicle from the hoist. 7.
Remove the caps from the fuel pipes.
8. Connect the engine compartment fuel hose/pipe (2) to the chassis fuel hose/pipe (3). 9. Connect
the negative battery terminal.
10. Prime the fuel system.
1. Cycle the ignition ON for 5 seconds and then OFF for 10 seconds. Repeat cycling twice. 2.
Crank the engine until it starts. The maximum starter motor cranking time is 20 seconds. 3. If the
engine does not start, repeat steps.
11. Run the engine and check the system for leaks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Supply Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis > Page 8187
Fuel Supply Line: Service and Repair Fuel Hose/Pipes Replacement - Engine Compartment
FUEL HOSE/PIPES REPLACEMENT - ENGINE COMPARTMENT
REMOVAL PROCEDURE
NOTE: Do not attempt to repair the engine fuel feed pipe or the engine fuel return pipe. Replace a
damaged engine fuel feed pipe or the engine fuel return pipe.
1. Remove the exhaust crossover pipe. 2. Relieve the fuel system pressure. Refer to Fuel Pressure
Relief.
3. Remove the 2 nuts securing the fuel hose/pipe to the engine and transaxle. 4. Remove the fuel
hose/pipe retainers from the threaded studs on the engine and transaxle. 5. Clean all engine fuel
pipe connections and areas surrounding the engine fuel pipe connections before disconnecting the
engine fuel pipe
connections to avoid possible contamination of the fuel system.
6. Disconnect the engine compartment fuel hose/pipe (2) from the chassis fuel hose/pipe (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Supply Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis > Page 8188
7. Cap the fuel hose/pipes to prevent contamination and fuel leakage.
8. Disconnect the engine compartment fuel hose/pipe (1) from the fuel rail (4). 9. Cap the fuel
hose/pipes to prevent contamination and fuel leakage.
10. Remove the fuel hose/pipe from the fuel pipe retainer (2).
INSTALLATION PROCEDURE
1. Position the fuel hose/pipe to the engine. 2. Install the fuel hose/pipe retainers to the threaded
studs on the engine and transaxle.
3. NOTE: Refer to Fastener Notice.
Install the 2 nuts securing the fuel hose/pipe to the engine and transaxle.
Tighten the nuts to 28 N.m (21 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Supply Line > Component
Information > Service and Repair > Fuel Hose/Pipes Replacement - Chassis > Page 8189
4. Install the fuel hose/pipe to the fuel pipe retainer (2). 5. Remove the caps from the fuel pipes. 6.
Connect the engine compartment fuel hose/pipe (1) to the fuel rail (4).
7. Remove the caps from the fuel pipes. 8. Connect the engine compartment fuel hose/pipe (2) to
the chassis fuel hose/pipe (3). 9. Install the exhaust crossover pipe.
10. Prime the fuel system.
1. Cycle the ignition ON for 5 seconds and then OFF for 10 seconds. 2. Repeat step 7.1 twice. 3.
Crank the engine until it starts. The maximum starter motor cranking time is 20 seconds. 4. If the
engine does not start, repeat steps 7.1-7.4.
11. Run the engine and check for fuel system leaks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Hose >
Component Information > Service and Repair
Fuel Filler Hose: Service and Repair
FILLER TUBE REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: Replacement fuel filler tube hoses do not come equipped with hose clamps.
Obtain replacement hose clamps prior to
beginning this service procedure.
CAUTION: Do not allow smoking or the use of open flames in the area where work on the fuel or
EVAP system is taking place. Anytime work is being done on the fuel system, disconnect the
negative battery cable, except for those tests where battery voltage is required.
Ensure that the fuel level in the tank is less than 1/4 full. If necessary, drain the fuel tank to at least
this level. Refer to Fuel Tank Draining .
3. Raise and support the vehicle. Refer to Vehicle Lifting . 4. Remove the right rear wheel and tire.
5. Remove the right rear wheelhouse inner liner.
6. Loosen the fuel filler tube hose clamp. 7. Disconnect the fuel filler tube, the fuel filler vent tube,
and the fresh air hose from the fuel tank.
8. Remove the fuel filler tube bracket bolts (2).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Hose >
Component Information > Service and Repair > Page 8194
9. Remove the fuel filler tube (1) from the vehicle.
10. Remove the closeout grommet.
11. Separate the fresh air hose from the fuel filler tube.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Hose >
Component Information > Service and Repair > Page 8195
1. Attach the fresh air hose to the fuel filler tube.
2. Install the closeout grommet.
3. Position the fuel filler tube (1) to the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Hose >
Component Information > Service and Repair > Page 8196
4. Position the fuel filler tube to the closeout grommet (1).
5. NOTE: Refer to Fastener Notice .
Install the fuel filler tube bracket bolts (2).
Tighten the bolt to 12 N.m (106 lb in).
6. IMPORTANT: Ensure that the fuel filler tube connecting hose is installed until it touches the fuel
tank body. The hose clamp should be
located within 13 mm (1/2 in) of the end of the connecting hose.
Position the filler tube-to-fuel tank connecting hose and hose clamp.
Tighten the clamp to 5 N.m (44 lb in).
7. Connect the fuel filler vent tube and fresh air hose. 8. Install the inner wheelhouse liner. 9. Install
the wheel and tire.
10. Lower the vehicle from the hoist. 11. Install the fuel filler cap. 12. Perform the Service Bay
Diagnostic Test for the EVAP emission system using the scan tool. This test will verify the integrity
of the vapor handling
areas of the fuel system. See: Computers and Control Systems/Testing and Inspection/Monitors,
Trips, Drive Cycles and Readiness Codes/Service Bay Test
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > Customer Interest: > 09-06-04-001 > Jan > 09 > Fuel System - MIL
ON/DTC's P0455/P0442
Fuel Filler Neck: Customer Interest Fuel System - MIL ON/DTC's P0455/P0442
TECHNICAL
Bulletin No.: 09-06-04-001
Date: January 08, 2009
Subject: Malfunction Indicator Lamp (MIL) Check Engine Light On, DTC P0442 or P0455 Set
(Perform Outlined Repair)
Models: 2005-2008 Chevrolet Equinox 2006-2008 Pontiac Torrent
Condition
Some customers may comment on a check engine light on.
Upon further investigation, the technician may find DTC P0442 (EVAP small leak) or P0455 (EVAP
large leak) set as current or in history.
Cause
This condition may be caused by the rubber grommet at the fuel tank filler neck not being properly
seated. In some situations, the inner lip of the grommet may ride over the top of the filler neck,
preventing the fuel cap from tightening properly, resulting in poor sealing. This can set the small or
large leak diagnostic codes.
Correction
DO NOT replace the fuel cap for this condition. Follow the instructions listed below.
1. Inspect the rubber grommet for damage. Replace if necessary.
2. Ensure that the grommet is correctly seated to the fuel filler neck pocket.
3. If the grommet is not correctly seated, use a non-metallic tool to push down on the inner lip of
the grommet, folding it inward on the fill pipe. This will prevent the possibility of the inner lip
interfering with the fuel cap.
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > Customer Interest: > 09-06-04-001 > Jan > 09 > Fuel System - MIL
ON/DTC's P0455/P0442 > Page 8205
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 07-06-04-022G > Jul > 09 > Fuel
System -07-06-04-022G End Of Need For Information
Fuel Filler Neck: All Technical Service Bulletins Fuel System -07-06-04-022G End Of Need For
Information
ENGINEERING INFORMATION
Bulletin No.: 07-06-04-022G
Date: July 31, 2009
Subject: EI07238 - Fuel Cap May Not Seal, MIL/SES Light Illuminated with DTC P0442 Evaporative Emission (EVAP) System Small Leak Detected and/or P0455 - Evaporative Emission
(EVAP) System Large Leak Detected (Engineering Information Closed)
Models:
2005 Cadillac DeVille 2005-2006 Cadillac SRX 2005-2007 Cadillac XLR, XLR-V 2005-2007
Chevrolet Corvette 2006-2007 Chevrolet Equinox 2007-2008 Chevrolet Express 2007-2008 GMC
Savana 2005 Pontiac Bonneville 2006 Pontiac GTO 2006-2007 Pontiac Torrent 2005-2007 Saturn
VUE Equipped with Engine RPOs LJ3, LC3, L61, LK9, LNJ, LP9, L36, L66, LH2, LD8, LY2, LR4,
LS2, LY6, LS7 Please Refer to GMVIS
Supercede: This bulletin is being revised to end the need for information from the field. Please
discard Corporate Bulletin Number 07-06-04-022F (Section 06 - Engine/Propulsion System).
Additional information is no longer needed by Engineering. Refer to the published diagnostics and
repairs in SI to correct this concern.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 09-06-04-001 > Jan > 09 > Fuel
System - MIL ON/DTC's P0455/P0442
Fuel Filler Neck: All Technical Service Bulletins Fuel System - MIL ON/DTC's P0455/P0442
TECHNICAL
Bulletin No.: 09-06-04-001
Date: January 08, 2009
Subject: Malfunction Indicator Lamp (MIL) Check Engine Light On, DTC P0442 or P0455 Set
(Perform Outlined Repair)
Models: 2005-2008 Chevrolet Equinox 2006-2008 Pontiac Torrent
Condition
Some customers may comment on a check engine light on.
Upon further investigation, the technician may find DTC P0442 (EVAP small leak) or P0455 (EVAP
large leak) set as current or in history.
Cause
This condition may be caused by the rubber grommet at the fuel tank filler neck not being properly
seated. In some situations, the inner lip of the grommet may ride over the top of the filler neck,
preventing the fuel cap from tightening properly, resulting in poor sealing. This can set the small or
large leak diagnostic codes.
Correction
DO NOT replace the fuel cap for this condition. Follow the instructions listed below.
1. Inspect the rubber grommet for damage. Replace if necessary.
2. Ensure that the grommet is correctly seated to the fuel filler neck pocket.
3. If the grommet is not correctly seated, use a non-metallic tool to push down on the inner lip of
the grommet, folding it inward on the fill pipe. This will prevent the possibility of the inner lip
interfering with the fuel cap.
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 09-06-04-001 > Jan > 09 > Fuel
System - MIL ON/DTC's P0455/P0442 > Page 8215
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Fuel Filler Neck: > 08-08-57-001A >
Oct > 08 > Body - General Water Leak Diagnostic Guide
Trunk / Liftgate Weatherstrip: All Technical Service Bulletins Body - General Water Leak Diagnostic
Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 2
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Fuel Filler Neck: > 08-08-57-001A >
Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 8221
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Fuel Filler Neck: > 08-08-57-001A >
Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 8222
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Fuel Filler Neck: > 08-08-57-001A >
Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 8223
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Fuel Filler Neck: > 08-08-57-001A >
Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 8224
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Fuel Filler Neck: > 08-08-57-001A >
Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 8225
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Fuel Filler Neck: > 08-08-57-001A >
Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 8231
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Fuel Filler Neck: > 08-08-57-001A >
Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 8232
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Fuel Filler Neck: > 08-08-57-001A >
Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 8233
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Fuel Filler Neck: > 08-08-57-001A >
Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 8234
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Fuel Tank > Fuel Filler Neck >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Fuel Filler Neck: > 08-08-57-001A >
Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 8235
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
Fuel Pump Relay: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8241
Electrical Symbols Part 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8242
Electrical Symbols Part 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8243
Electrical Symbols Part 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8244
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8245
Electrical Symbols Part 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8246
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8247
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8248
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8249
Fuel Pump Relay: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8250
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8251
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8252
resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8253
electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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> Page 8267
5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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> Page 8270
6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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> Page 8272
9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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> Page 8280
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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> Page 8283
3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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> Page 8294
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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> Page 8295
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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> Page 8296
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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> Page 8297
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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> Page 8298
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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> Page 8299
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8300
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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> Page 8301
2. Slide the lever lock forward while pressing down on the lever lock release tab.
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> Page 8302
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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> Page 8303
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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> Page 8304
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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> Page 8305
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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> Page 8306
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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> Page 8307
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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> Page 8308
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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> Page 8309
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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> Page 8310
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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> Page 8312
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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> Page 8313
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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> Page 8314
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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> Page 8315
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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> Page 8316
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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> Page 8318
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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> Page 8320
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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> Page 8321
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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> Page 8322
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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> Page 8323
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8325
If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8326
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8327
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8328
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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> Page 8329
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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> Page 8330
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Relays and Modules - Fuel
Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8331
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8332
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8333
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8334
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8335
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8336
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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> Page 8337
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Delivery and Air Induction > Fuel Pump Relay > Component Information > Diagrams > Diagram Information and Instructions
> Page 8338
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> Page 8339
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Delivery and Air Induction > Accelerator Pedal Position Sensor > Component Information > Locations
Pedal Assemblies
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Accelerator Pedal Position Sensor: Service and Repair
ACCELERATOR PEDAL POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the instrument panel left lower closeout panel.
2. Remove the connector position assurance (CPA) from the accelerator pedal position (APP)
sensor connector. 3. Disconnect the APP sensor harness connector.
4. IMPORTANT: Due to clearance issues, the upper attachment bolt cannot be removed from the
accelerator pedal assembly. Loose then
bolt completely and leave the bolt in the component until the assembly is removed from the vehicle.
Remove the APP assembly attachment bolts.
5. Remove the APP assembly from the vehicle.
INSTALLATION PROCEDURE
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1. Install the upper attachment bolt into the APP assembly. 2. Install the APP assembly into the
vehicle.
3. NOTE: Refer to Fastener Notice.
Install the remaining attachment bolts into the APP assembly.
Tighten the bolts to 25 N.m (18 lb ft).
4. Connect the APP sensor harness connector. Push the connector in until the lock position is felt,
then pull back to confirm engagement. 5. Install the CPA to the APP sensor harness connector. 6.
Install the instrument panel left lower closeout panel.
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Air Induction Components
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Air Flow Meter/Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Instructions > Page 8352
Electrical Symbols Part 3
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Instructions > Page 8353
Electrical Symbols Part 4
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Instructions > Page 8354
Electrical Symbols Part 5
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Electrical Symbols Part 6
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Instructions > Page 8356
Electrical Symbols Part 7
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Instructions > Page 8357
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Air Flow Meter/Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Instructions > Page 8360
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Instructions > Page 8361
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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Instructions > Page 8370
- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Instructions > Page 8375
Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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Instructions > Page 8391
3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8392
8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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Instructions > Page 8393
3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8394
1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8397
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Instructions > Page 8398
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8399
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8400
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8402
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8403
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8404
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8405
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8406
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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Instructions > Page 8407
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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Instructions > Page 8409
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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Instructions > Page 8410
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Instructions > Page 8411
2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8413
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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Instructions > Page 8414
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Instructions > Page 8415
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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Instructions > Page 8417
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8418
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Instructions > Page 8422
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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Instructions > Page 8423
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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Instructions > Page 8424
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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Instructions > Page 8425
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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Instructions > Page 8427
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8428
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8430
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8431
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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Instructions > Page 8433
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8434
must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8437
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8438
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8439
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Instructions > Page 8440
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8441
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8442
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8443
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8444
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8445
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8446
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8447
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8448
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8449
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8450
Mass Air Flow (MAF) Sensor
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Page 8451
Air Flow Meter/Sensor: Service and Repair
MASS AIRFLOW SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner intake duct.
2. Disconnect the mass air flow (MAF) sensor electrical connector.
3. Remove the screws that retain the MAF to the air cleaner assembly. 4. Remove the MAF from
the air cleaner assembly. 5. Remove the MAF to air cleaner assembly seal.
INSTALLATION PROCEDURE
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Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Diagrams > Page 8452
1. Install the seal to the MAF. 2. Install the MAF to the air cleaner assembly.
3. NOTE: Refer to Fastener Notice.
Install the screws that retain the MAF to the air cleaner assembly.
Tighten the screws to 4 N.m (35 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions
Throttle Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Instructions > Page 8457
Electrical Symbols Part 2
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8458
Electrical Symbols Part 3
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8459
Electrical Symbols Part 4
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8460
Electrical Symbols Part 5
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8461
Electrical Symbols Part 6
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8462
Electrical Symbols Part 7
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8463
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8464
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Instructions > Page 8465
Throttle Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8466
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8467
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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Instructions > Page 8468
resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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Instructions > Page 8469
electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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Instructions > Page 8471
1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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Instructions > Page 8474
IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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Instructions > Page 8476
- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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Instructions > Page 8478
1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8480
View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8481
Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8482
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8483
5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8484
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8485
4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8486
6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8487
BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8488
9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8489
1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8490
Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8491
Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8492
View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8493
View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8494
6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8495
4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8496
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8497
3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8498
8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8499
3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8500
1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8505
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8506
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8507
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8508
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8509
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8510
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8511
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8512
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8513
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8514
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8515
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8516
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8517
2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8518
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8519
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8520
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8521
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8522
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8523
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8524
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8525
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8526
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8527
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8528
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8529
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8530
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8531
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8532
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8533
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8534
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8535
View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8536
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8537
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8538
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8539
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8540
must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8541
If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8542
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8543
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8544
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8545
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8546
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Sensors and Switches - Fuel
Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8547
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8548
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8549
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8550
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8551
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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Instructions > Page 8552
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Instructions > Page 8553
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8554
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Delivery and Air Induction > Throttle Position Sensor > Component Information > Diagrams > Diagram Information and
Instructions > Page 8555
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Body > Component
Information > Service and Repair > Procedures
Throttle Body: Procedures
Throttle Learn
THROTTLE LEARN
DESCRIPTION
The engine control module (ECM) learns the idle position of the throttle plate to ensure the correct
idle. Anytime the throttle body is cleaned or replaced, the ECM must learn the new throttle position.
The idle may be unstable or a DTC may set if the throttle position is not learned.
CONDITIONS FOR RUNNING THE THROTTLE LEARN PROCEDURE
- DTCs P0101, P0102, P0103, P0107, P0108, P0111, P0112, P0113, P0506, and P0507 are not
set.
- The engine speed is between 450-4,000 RPM.
- The manifold absolute pressure (MAP) is greater than 5 kPa.
- The mass air flow (MAF) is greater than 2 g/s.
- The ignition 1 voltage is greater than 10 volts.
THROTTLE LEARN
IMPORTANT: Do NOT perform this procedure if DTCs are set. Refer to Diagnostic Trouble Code
(DTC) List - Vehicle. See: Computers and Control Systems/Testing and Inspection/Diagnostic
Trouble Code Descriptions
1. Start and idle the engine in PARK for 3 minutes. 2. With a scan tool, monitor desired and actual
RPM. 3. The ECM will start to learn the new idle cells and Desired RPM should start to decrease.
4. Ignition OFF for 60 seconds. 5. Start and idle the engine in PARK for 3 minutes. 6. After the 3
minute run time the engine should be idling normal.
- IMPORTANT: During the drive cycle the check engine light may come on with idle speed DTCs. If
idle speed codes are set, clear codes so the ECM can continue to learn.
If the engine idle speed has not been learned the vehicle will need to be driven at speeds above 70
km/h (44 mph) with several decelerations and extended idles.
7. After the drive cycle, the engine should be idling normally.
- If the engine idle speed has not been learned, turn OFF the ignition for 60 seconds and repeat
step 6.
8. Once the engine speed has returned to normal, clear DTCs.
Throttle Body Cleaning
THROTTLE BODY CLEANING
IMPORTANT: Over extended time and mileage, deposits may accumulate on the back of the
throttle valve plate. The source of the deposit is exhaust gas recirculation (EGR) gas. Typically
these deposits pose no problem. Occasionally the deposit may accumulate to a point where
perceived pedal effort or throttle valve movement is effected. This procedure should not be
performed on vehicles with mileage under 80 450 km (50,000 mi).
1. Remove the air intake duct.
CAUTION: Turn OFF the ignition before inserting fingers into the throttle bore. Unexpected
movement of the throttle blade could cause personal injury.
NOTE: Do not insert any tools into the throttle body bore in order to avoid damage to the throttle
valve plate.
2. Inspect the throttle body bore and the throttle valve plate for deposits. You will need to open the
throttle valve in order to inspect all surfaces.
NOTE: Do not use any solvent that contains Methyl Ethyl Ketone (MEK). This solvent may damage
fuel system components.
3. Clean the throttle body bore and the throttle valve plate using a clean shop towel with GM top
engine cleaner, GM P/N 1052626 (Canadian P/N
993026) or AC-Delco Carburetor Tune-Up Conditioner, P/N X66-P, or an equivalent product.
4. Install the air intake duct.
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Throttle Body: Removal and Replacement
THROTTLE BODY ASSEMBLY REPLACEMENT
REMOVAL PROCEDURE
IMPORTANT: The throttle actuator control (TAC) module is not replaceable separate of the throttle
body assembly. If the TAC module requires replacement the entire throttle body assembly must be
replaced.
1. Remove the air cleaner intake duct. 2. Remove the heater outlet pipe. 3. Cover the throttle body
opening with a shop towel and use the shop air to remove any dirt at the base of the throttle body.
4. Disconnect the TAC module electrical connector (1) by pulling up on the connector lock (2) to
release the connector from the TAC module (3).
5. Remove the throttle body bolts (2). 6. Remove the throttle body (1) from the intake manifold. 7.
Block the intake manifold opening with a clean shop towel to prevent dirt from entering. 8. Remove
the throttle body studs ONLY If replacement of stud is necessary.
INSTALLATION PROCEDURE
1. NOTE: Refer to Fastener Notice.
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Install the throttle body studs if previously removed.
Tighten the throttle body stud to 6 N.m (53 lb in).
2. Install the throttle body (1) to the intake manifold. 3. Install the throttle body bolts.
Tighten the throttle body-to-intake manifold bolts to 10 N.m (89 lb in).
4. Connect the TAC module electrical connector (1) to the TAC module (3) then press down the
connector lock (2) in order to secure the TAC
module electrical connector.
5. Install the heater outlet pipe. 6. Install the air cleaner intake duct.
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Throttle Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Throttle Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8602
View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8605
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8615
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8632
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8633
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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Component Information > Diagrams > Diagram Information and Instructions > Page 8635
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8636
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 8641
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 8642
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8643
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8645
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8646
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 8647
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8648
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Component Information > Diagrams > Diagram Information and Instructions > Page 8653
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8654
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Component Information > Diagrams > Diagram Information and Instructions > Page 8656
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Chevrolet Workshop Manuals > Powertrain Management > Fuel Delivery and Air Induction > Throttle Position Sensor >
Component Information > Diagrams > Diagram Information and Instructions > Page 8660
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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Component Information > Diagrams > Diagram Information and Instructions > Page 8661
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Component Information > Diagrams > Diagram Information and Instructions > Page 8663
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Component Information > Diagrams > Diagram Information and Instructions > Page 8664
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Locations
Top Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions
Camshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Information > Diagrams > Diagram Information and Instructions > Page 8679
Camshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Information > Diagrams > Diagram Information and Instructions > Page 8693
3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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Information > Diagrams > Diagram Information and Instructions > Page 8694
View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Information > Diagrams > Diagram Information and Instructions > Page 8695
Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8701
BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 8706
View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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Information > Diagrams > Diagram Information and Instructions > Page 8709
4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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Information > Diagrams > Diagram Information and Instructions > Page 8710
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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Information > Diagrams > Diagram Information and Instructions > Page 8713
3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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Information > Diagrams > Diagram Information and Instructions > Page 8716
4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 8717
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 8719
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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Information > Diagrams > Diagram Information and Instructions > Page 8720
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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Information > Diagrams > Diagram Information and Instructions > Page 8721
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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Information > Diagrams > Diagram Information and Instructions > Page 8722
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8723
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 8724
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Information > Diagrams > Diagram Information and Instructions > Page 8725
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8726
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8727
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8728
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8729
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8730
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8731
2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8732
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8733
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8734
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8735
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 8736
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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Information > Diagrams > Diagram Information and Instructions > Page 8737
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8738
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8739
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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Information > Diagrams > Diagram Information and Instructions > Page 8740
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 8741
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8742
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8743
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8744
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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Information > Diagrams > Diagram Information and Instructions > Page 8745
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8746
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8747
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8748
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8749
View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8750
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8751
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8752
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8753
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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Information > Diagrams > Diagram Information and Instructions > Page 8756
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8757
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8758
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8759
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8760
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8761
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8762
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8763
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8764
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8765
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8766
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8767
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8768
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8769
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Camshaft Position Sensor > Component
Information > Diagrams > Page 8770
Camshaft Position Sensor: Service and Repair
CAMSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the camshaft position (CMP) sensor electrical connector. 2. Remove the CMP
sensor bolt. 3. Remove the CMP sensor. 4. Inspect the CMP sensor O-rings for wear, cracks, or
leakage if the sensor is being reused. Replace the O-rings if damaged.
INSTALLATION PROCEDURE
1. Lubricate the CMP sensor O-rings with clean engine oil.
2. Install the CMP sensor.
3. NOTE: Refer to Fastener Notice.
Install the CMP sensor bolt.
Tighten the bolt to 10 N.m (89 lb in).
4. Connect the CMP sensor electrical connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Locations
Rear Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions
Crankshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8776
Electrical Symbols Part 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8777
Electrical Symbols Part 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8778
Electrical Symbols Part 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8779
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8780
Electrical Symbols Part 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8781
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8782
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Crankshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 8797
1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Information > Diagrams > Diagram Information and Instructions > Page 8798
3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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Information > Diagrams > Diagram Information and Instructions > Page 8802
5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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Information > Diagrams > Diagram Information and Instructions > Page 8803
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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Information > Diagrams > Diagram Information and Instructions > Page 8804
4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 8805
6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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Information > Diagrams > Diagram Information and Instructions > Page 8806
BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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Information > Diagrams > Diagram Information and Instructions > Page 8807
9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Information > Diagrams > Diagram Information and Instructions > Page 8810
Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 8811
View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 8813
6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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Information > Diagrams > Diagram Information and Instructions > Page 8814
4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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Information > Diagrams > Diagram Information and Instructions > Page 8815
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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Information > Diagrams > Diagram Information and Instructions > Page 8817
8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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Information > Diagrams > Diagram Information and Instructions > Page 8818
3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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Information > Diagrams > Diagram Information and Instructions > Page 8820
3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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Information > Diagrams > Diagram Information and Instructions > Page 8821
4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8822
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8823
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8824
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8825
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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Information > Diagrams > Diagram Information and Instructions > Page 8826
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8827
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8828
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8829
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8830
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8831
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8832
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8833
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8834
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8835
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8836
2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8837
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8838
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8839
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8840
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8841
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8842
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8843
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8844
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8845
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8846
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8847
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8848
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8849
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8850
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8851
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8852
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8853
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8854
View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8855
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8856
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8857
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8858
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8859
must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8860
If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8861
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8862
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8863
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8864
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 8865
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8866
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8867
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8868
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8869
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8870
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8871
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8872
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8873
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8874
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Diagram Information and Instructions > Page 8875
Crank Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Page 8876
Crankshaft Position Sensor: Testing and Inspection
CRANKSHAFT POSITION SENSOR SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DIAGNOSTIC FAULT INFORMATION
TYPICAL SCAN TOOL DATA
CIRCUIT/SYSTEM DESCRIPTION
The crankshaft position (CKP) sensor circuits consist of an engine control module (ECM) supplied
5-volt reference circuit, low reference circuit and an output signal circuit. The CKP sensor is an
internally magnetic biased digital output integrated circuit sensing device. The sensor detects
magnetic flux changes of the teeth and slots of a 58-tooth reluctor wheel on the crankshaft. Each
tooth on the reluctor wheel is spaced at 60-tooth spacing, with 2 missing teeth for the reference
gap. The CKP sensor produces an ON/OFF DC voltage of varying frequency, with 58 output pulses
per crankshaft revolution. The frequency of the CKP sensor output depends on the velocity of the
crankshaft. The CKP sensor sends a digital signal, which represents an image of the crankshaft
reluctor wheel, to the ECM as each tooth on the wheel rotates past the CKP sensor. The ECM
uses each CKP signal pulse to determine crankshaft speed and decodes the crankshaft reluctor
wheel reference gap to identify crankshaft position. This information is then used to determine the
optimum ignition and injection points of the engine. The ECM also uses CKP sensor output
information to determine the camshaft relative position to the crankshaft, to control camshaft
phasing, and to detect cylinder misfire.
DIAGNOSTIC AIDS
- Inspect the CKP sensor connector and the ECM connector for corrosion.
- With a DTC set, the engine may crank for an extended period of time at start-up.
CIRCUIT/SYSTEM VERIFICATION
If DTC P0641 or P0651 are set diagnose those DTCs first. 1. With the ignition OFF, inspect the
engine wiring harnesses carrying the CKP sensor circuits for the following conditions:
- Close routing of secondary ignition wires
- Close routing of aftermarket electrical equipment
- Close to solenoids, motors, and relays
- Correct any wire harness routing or component placement conditions, if it is determined to be a
possible source of electrical interference.
2. Start the engine. Using the Live Plot function on the scan tool, select the CMP parameter.
Change the minimum spec to 400 RPM, and the
maximum spec to 4,000 RPM. Select the CKP sensor parameter. Change the minimum spec to
600 RPM, and the maximum spec to 3,300 RPM.
3. Observe the scan tool. 4. Quickly accelerate and release the accelerator pedal several time. Do
not exceed 3,200 RPM. The graphed lines on the Live Plot display should
track together across the screen. If the vehicle passes the Circuit/System Verification test, operate the vehicle within the Conditions
for Running the DTC. You may also operate the vehicle within the conditions that are captured in
the Freeze Frame/Failure Records data list.
CIRCUIT/SYSTEM TESTING
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Diagrams > Page 8877
IMPORTANT: You must complete the Circuit/System Verification before proceeding with
Circuit/System Testing.
1. Disconnect the CKP sensor connector. 2. Test for less than 1 ohm of resistance between low
reference circuit and ground.
- If greater than the specified value, test the low reference circuit for an open/high resistance. If the
circuit tests normal, replace the ECM.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit and ground.
- If less than the specified range, test the 5-volt reference circuit for an open/high resistance or
short to ground. If the circuit tests normal, replace the ECM.
- If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the
circuit tests normal, replace the ECM.
4. Ignition ON, test for 4.8-5.2 volts between the signal circuit and ground.
- If less than the specified range, test signal circuit for an open/high resistance or short to ground. If
the circuit tests normal, replace the ECM.
- If greater than the specified range, test signal circuit for a short to voltage. If the circuit tests
normal, replace the ECM.
5. Ignition ON, using a jumper wire connected to ground, momentarily touch the CKP sensor signal
circuit repeatedly. The CKP Active Counter
parameter should increment. If the CKP Active Counter parameter does not increment, replace the ECM.
6. Ignition OFF, inspect the CKP sensor for looseness and correct installation 7. Touch the jumper
wire to the CKP sensor signal circuit repeatedly at the connector. The CKP Active Counter
parameter should increment.
- If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.
8. Inspect the engine for the following conditions:
- Engine oil for debris
- Crankshaft reluctor wheel for damage
- The timing chain, tensioner, and sprockets for wear or damage
- If debris is found in the engine oil, inspect the internal engine components to determine the cause.
Repair or replace any worn or damaged components.
COMPONENT TESTING
IMPORTANT: You must complete the Circuit/System Testing before proceeding with Component
Testing.
1. Remove the CKP sensor from the engine and inspect the sensor and the O-ring for damage. 2.
Connect the CKP Sensor connector to the CKP Sensor; turn ON the ignition, with the engine OFF.
3. Observe the CKP Active Counter parameter on the scan tool; pass a steel object by the tip of the
sensor repeatedly. The CKP Active Counter
parameter should increment. -
If the parameter does not increment, replace the CKP sensor.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Crankshaft Position Sensor Replacement for CKP sensor replacement
- Control Module References for ECM replacement, setup, and programming See: Computers and
Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests and Procedures See: Testing and Inspection/Programming and
Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Service and Repair > Crankshaft Position Sensor Replacement
Crankshaft Position Sensor: Service and Repair Crankshaft Position Sensor Replacement
CRANKSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting. 2. Disconnect the crankshaft position (CKP) sensor
electrical connector. 3. Remove the CKP sensor nut (2). 4. Remove the CKP sensor (1) from the
engine. 5. Inspect for wear, cracks, or leakage if the CKP sensor is being reused.
INSTALLATION PROCEDURE
1. Lubricate the O-ring with clean engine oil. Replace the O-rings if damaged.
2. Install the CKP sensor (1) to the block.
3. NOTE: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Service and Repair > Crankshaft Position Sensor Replacement > Page 8880
Install the CKP sensor nut (1).
Tighten the nut to 11 N.m (97 lb in).
4. Connect the CKP sensor electrical connector. 5. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Crankshaft Position Sensor > Component
Information > Service and Repair > Crankshaft Position Sensor Replacement > Page 8881
Crankshaft Position Sensor: Service and Repair Crankshaft Position System Variation Learn
CRANKSHAFT POSITION SYSTEM VARIATION LEARN
IMPORTANT: The Crankshaft Position (CKP) system variation learn procedure is also required when the
following service procedures have been performed, regardless of whether DTC P0315 is set: An engine replacement
- A engine control module (ECM) replacement
- A crankshaft balancer replacement
- A crankshaft replacement
- A CKP sensor replacement
- Any engine repairs which disturb the crankshaft to CKP sensor relationship.
- The scan tool monitors certain component signals to determine if all the conditions are met to
continue with the CKP System Variation Learn Procedure. The scan tool only displays the condition
that inhibits the procedure. The scan tool monitors the following components: CKP sensors activity-If there is a CKP sensor condition, refer to the applicable DTC that set.
- Camshaft position (CMP) signal activity-If there is a CMP signal condition, refer to the applicable
DTC that set.
- Engine coolant temperature (ECT)-If the engine coolant temperature is not warm enough, idle the
engine until the engine coolant temperature reaches the correct temperature.
1. Install a scan tool. 2. Monitor the ECM for DTCs with a scan tool. If other DTCs are set, except
DTC P0315, refer to Diagnostic Trouble Code (DTC) List - Vehicle
for the applicable DTC that set. See: Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Descriptions
3. With a scan tool, select the CKP System Variation Learn Procedure and perform the following:
1. Observe fuel cut-off for applicable engine. 2. Block drive wheels. 3. Set parking brake. 4. DO
NOT apply brake pedal. 5. Cycle ignition from OFF to ON. 6. Apply and hold brake pedal for the
duration of the procedure. 7. Start and idle engine. 8. Turn the air conditioning (A/C) OFF. 9. The
vehicle must remain in Park or Neutral.
10. IMPORTANT:
- The engine should not accelerate beyond the calibrated fuel cut-off RPM value noted in step 3.1.
Release the throttle immediately if the value is exceeded.
- While the learn procedure is in progress, release the throttle immediately when the engine starts
to decelerate. The engine control is returned to the operator and the engine responds to throttle
position after the learn procedure is complete.
Accelerate to wide open throttle (WOT) and release when the fuel cut-off occurs.
4. The scan tool displays Learn Status: Learned this Ignition. If the scan tool indicates that DTC
P0315 ran and passed, the CKP variation learn
procedure is complete. If the scan tool indicates DTC P0315 failed or did not run, refer to DTC
P0315. If any other DTCs set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the
applicable DTC. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble
Code Descriptions
5. Turn OFF the ignition for 30 seconds after the learn procedure is completed successfully in order
to store the CKP system variation values in the
ECM memory.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Cable > Component Information >
Specifications
Ignition Cable: Specifications
Spark Plug Wire Resistance.................................................................................................................
......................4,018 ohm per meter (1,225 ohm per ft)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Cable > Component Information >
Specifications > Page 8885
Ignition Cable: Testing and Inspection
SPARK PLUG WIRE INSPECTION
Spark plug wire integrity is vital for proper engine operation. A thorough inspection will be
necessary to accurately identify conditions that may affect engine operation. Refer to the list below
for items to be inspected.
1. Inspect for correct routing of the spark plug wires. Improper routing may cause cross-firing. 2.
Inspect each wire for any signs of cracks or splits in the wire. 3. Inspect each boot for the following
conditions:
- Tearing
- Piercing
- Arcing
- Carbon tracking
- Corroded terminal\
If corrosion, carbon tracking, or arcing are indicated on a spark plug wire boot or terminal, both the
wire and the component connected to the wire should be replaced.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Cable > Component Information >
Specifications > Page 8886
Ignition Cable: Service and Repair
SPARK PLUG WIRE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. NOTE: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug
boot only. Do not pull on the spark plug wire
or the wire could be damaged.
Remove the spark plug wires (1) from the left side spark plugs.
3. Remove the spark plug wires from the retaining clips (2).
4. Remove the spark plug wires (1) from the right side spark plugs. 5. Remove the spark plug wires
from the retaining clips (2). 6. Remove the spark plug wires from the ignition coil/control module. 7.
Remove the spark plug wires from the engine. 8. If you are replacing the spark plug wires, transfer
any of the following components:
- Boot heat shields
- Spark plug wire conduit
- Spark plug wire retaining clips
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Cable > Component Information >
Specifications > Page 8887
INSTALLATION PROCEDURE
1. Install the spark plug wires (1) to the ignition coil/control module. 2. Install the spark plug wires
(1) to the right side spark plugs. 3. Install the spark plug wires to the retaining clips (2).
4. Install the spark plug wires (1) to the left side spark plugs. 5. Install the spark plug wires to the
retaining clips (2). 6. Install the injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Coil > Component Information >
Service and Repair
Ignition Coil: Service and Repair
IGNITION COIL/CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. Disconnect the spark plug wires. Note the position from which the wires are removed. 3.
Disconnect the ignition coil/control module electrical connectors. 4. Remove the 4 bolts securing
the ignition coil/control module to the ignition control module bracket. 5. Remove the ignition
coil/control module.
INSTALLATION PROCEDURE
1. Install the ignition coil/control module to the ignition control module bracket.
2. NOTE: Refer to Fastener Notice.
Install the 4 bolts securing the ignition coil/control module to the ignition control module bracket.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Coil > Component Information >
Service and Repair > Page 8891
Tighten the bolts to 4.5 N.m (40 lb in).
3. Connect the ignition coil/control module electrical connectors. 4. Connect the spark plug wires. 5.
Install the injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Control Module > Component
Information > Locations
Ignition Control Module: Locations
Top Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Control Module > Component
Information > Locations > Page 8895
Rear Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Control Module > Component
Information > Locations > Page 8896
Ignition Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Control Module > Component
Information > Service and Repair > Ignition Coil/Control Module Replacement
Ignition Control Module: Service and Repair Ignition Coil/Control Module Replacement
IGNITION COIL/CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. Disconnect the spark plug wires. Note the position from which the wires are removed. 3.
Disconnect the ignition coil/control module electrical connectors. 4. Remove the 4 bolts securing
the ignition coil/control module to the ignition control module bracket. 5. Remove the ignition
coil/control module.
INSTALLATION PROCEDURE
1. Install the ignition coil/control module to the ignition control module bracket.
2. NOTE: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Control Module > Component
Information > Service and Repair > Ignition Coil/Control Module Replacement > Page 8899
Install the 4 bolts securing the ignition coil/control module to the ignition control module bracket.
Tighten the bolts to 4.5 N.m (40 lb in).
3. Connect the ignition coil/control module electrical connectors. 4. Connect the spark plug wires. 5.
Install the injector sight shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Control Module > Component
Information > Service and Repair > Ignition Coil/Control Module Replacement > Page 8900
Ignition Control Module: Service and Repair Ignition Control Module Bracket Replacement
IGNITION CONTROL MODULE BRACKET REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. Disconnect the ignition coil/control module electrical connectors. 3. Remove the spark plug wire
retainer (1) from the ignition control module bracket. 4. Remove the 4 bolts securing the ignition
coil/control module to the ignition control module bracket. 5. Position the ignition coil/control module
aside out of the way. 6. Remove the bolt (3) from the fuel injector wire harness bracket (4) and
positive crankcase ventilation (PCV) valve fresh air tube retainer. 7. Remove the engine wire
harness retainers from the ignition control module bracket studs (5).
8. Remove the nut (1) retaining the heater outlet pipe. 9. Lift pipe up slightly to gain access for the
removal of the 2 ignition control module bracket bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Control Module > Component
Information > Service and Repair > Ignition Coil/Control Module Replacement > Page 8901
10. Remove the ignition control module bracket bolts (2). 11. Remove the ignition control module
bracket nuts (6). 12. Remove the ignition control module bracket.
INSTALLATION PROCEDURE
1. Install the ignition control module bracket.
2. NOTE: Refer to Fastener Notice.
Install the ignition control module bracket nuts (6).
Tighten the nuts to 25 N.m (18 lb ft).
3. Install the ignition control module bracket bolts (2).
Tighten the bolts to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Ignition Control Module > Component
Information > Service and Repair > Ignition Coil/Control Module Replacement > Page 8902
4. Install the nut (1) retaining the heater outlet pipe.
Tighten the nut to 25 N.m (18 lb ft).
5. Install the engine wire harness retainers to the ignition control module bracket studs (5). 6. Install
the bolt (3) from the fuel injector wire harness bracket (4) and PCV valve fresh air tube retainer.
Tighten the bolts to 5 N.m (44 lb in).
7. Install the ignition coil/control module to the ignition control module bracket. 8. Install the 4 bolts
securing the ignition coil/control module to the ignition control module bracket.
Tighten the bolts to 4.5 N.m (40 lb in).
9. Install the spark plug wire retainer (1) to the ignition control module bracket.
10. Connect the ignition coil/control module electrical connectors. 11. Install the injector sight
shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Locations
Knock Sensor: Locations
Front Of Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Locations > Page 8906
Front Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Locations > Page 8907
Rear Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions
Knock Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8910
Electrical Symbols Part 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8911
Electrical Symbols Part 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8912
Electrical Symbols Part 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8913
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8914
Electrical Symbols Part 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8915
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8916
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8917
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8918
Knock Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Diagrams > Diagram Information and Instructions > Page 8956
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8957
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8958
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8959
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8960
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8961
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8962
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8963
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8964
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8965
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8966
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8967
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8968
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8969
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8970
2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8971
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8972
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8973
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8974
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8975
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8976
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8977
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8978
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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Diagrams > Diagram Information and Instructions > Page 8979
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8980
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8981
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8982
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8983
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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Diagrams > Diagram Information and Instructions > Page 8984
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8985
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8986
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8987
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8988
View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Diagrams > Diagram Information and Instructions > Page 8989
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8990
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagrams > Diagram Information and Instructions > Page 8991
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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Diagrams > Diagram Information and Instructions > Page 8992
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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Diagrams > Diagram Information and Instructions > Page 8994
If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Diagrams > Diagram Information and Instructions > Page 9006
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Diagrams > Diagram Information and Instructions > Page 9007
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Diagrams > Diagram Information and Instructions > Page 9008
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Diagrams > Diagram Information and Instructions > Page 9009
Knock Sensor: Connector Views
Knock Sensor 1
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Knock Sensor 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Knock Sensor > Component Information >
Service and Repair > Knock Sensor Replacement - Bank 1
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 1
KNOCK SENSOR REPLACEMENT - BANK 1
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. If equipped with front wheel drive
(FWD), disconnect the engine wiring harness electrical connector (1) from the knock sensor.
3. If equipped with all wheel drive (AWD), disconnect the engine wiring harness electrical connector
(1) from the knock sensor.
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4. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
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2. If equipped with AWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor.
3. If equipped with FWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor. 4. Lower the vehicle.
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Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 2
KNOCK SENSOR REPLACEMENT - BANK 2
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Disconnect the engine wiring harness
electrical connector (2) from the knock sensor.
3. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
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Service and Repair > Knock Sensor Replacement - Bank 1 > Page 9016
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
2. Connect the engine wiring harness electrical connector (2) to the knock sensor. 3. Lower the
vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Relays and Modules - Ignition System >
Ignition Control Module > Component Information > Locations
Ignition Control Module: Locations
Top Of The Engine
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Ignition Control Module > Component Information > Locations > Page 9021
Rear Of The Engine
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Ignition Control Module > Component Information > Locations > Page 9022
Ignition Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Relays and Modules - Ignition System >
Ignition Control Module > Component Information > Service and Repair > Ignition Coil/Control Module Replacement
Ignition Control Module: Service and Repair Ignition Coil/Control Module Replacement
IGNITION COIL/CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. Disconnect the spark plug wires. Note the position from which the wires are removed. 3.
Disconnect the ignition coil/control module electrical connectors. 4. Remove the 4 bolts securing
the ignition coil/control module to the ignition control module bracket. 5. Remove the ignition
coil/control module.
INSTALLATION PROCEDURE
1. Install the ignition coil/control module to the ignition control module bracket.
2. NOTE: Refer to Fastener Notice.
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9025
Install the 4 bolts securing the ignition coil/control module to the ignition control module bracket.
Tighten the bolts to 4.5 N.m (40 lb in).
3. Connect the ignition coil/control module electrical connectors. 4. Connect the spark plug wires. 5.
Install the injector sight shield.
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9026
Ignition Control Module: Service and Repair Ignition Control Module Bracket Replacement
IGNITION CONTROL MODULE BRACKET REPLACEMENT
REMOVAL PROCEDURE
1. Remove the injector sight shield.
2. Disconnect the ignition coil/control module electrical connectors. 3. Remove the spark plug wire
retainer (1) from the ignition control module bracket. 4. Remove the 4 bolts securing the ignition
coil/control module to the ignition control module bracket. 5. Position the ignition coil/control module
aside out of the way. 6. Remove the bolt (3) from the fuel injector wire harness bracket (4) and
positive crankcase ventilation (PCV) valve fresh air tube retainer. 7. Remove the engine wire
harness retainers from the ignition control module bracket studs (5).
8. Remove the nut (1) retaining the heater outlet pipe. 9. Lift pipe up slightly to gain access for the
removal of the 2 ignition control module bracket bolts.
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9027
10. Remove the ignition control module bracket bolts (2). 11. Remove the ignition control module
bracket nuts (6). 12. Remove the ignition control module bracket.
INSTALLATION PROCEDURE
1. Install the ignition control module bracket.
2. NOTE: Refer to Fastener Notice.
Install the ignition control module bracket nuts (6).
Tighten the nuts to 25 N.m (18 lb ft).
3. Install the ignition control module bracket bolts (2).
Tighten the bolts to 25 N.m (18 lb ft).
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9028
4. Install the nut (1) retaining the heater outlet pipe.
Tighten the nut to 25 N.m (18 lb ft).
5. Install the engine wire harness retainers to the ignition control module bracket studs (5). 6. Install
the bolt (3) from the fuel injector wire harness bracket (4) and PCV valve fresh air tube retainer.
Tighten the bolts to 5 N.m (44 lb in).
7. Install the ignition coil/control module to the ignition control module bracket. 8. Install the 4 bolts
securing the ignition coil/control module to the ignition control module bracket.
Tighten the bolts to 4.5 N.m (40 lb in).
9. Install the spark plug wire retainer (1) to the ignition control module bracket.
10. Connect the ignition coil/control module electrical connectors. 11. Install the injector sight
shield.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Camshaft Position Sensor > Component Information > Locations
Top Of The Engine
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions
Camshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9037
Electrical Symbols Part 4
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9038
Electrical Symbols Part 5
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9039
Electrical Symbols Part 6
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9040
Electrical Symbols Part 7
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9041
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Camshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9045
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9051
Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9052
IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9053
Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9054
- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9062
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9065
BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9066
9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9070
View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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Camshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9071
View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Camshaft Position Sensor: Service and Repair
CAMSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the camshaft position (CMP) sensor electrical connector. 2. Remove the CMP
sensor bolt. 3. Remove the CMP sensor. 4. Inspect the CMP sensor O-rings for wear, cracks, or
leakage if the sensor is being reused. Replace the O-rings if damaged.
INSTALLATION PROCEDURE
1. Lubricate the CMP sensor O-rings with clean engine oil.
2. Install the CMP sensor.
3. NOTE: Refer to Fastener Notice.
Install the CMP sensor bolt.
Tighten the bolt to 10 N.m (89 lb in).
4. Connect the CMP sensor electrical connector.
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Locations
Rear Of The Engine
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Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions
Crankshaft Position Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Crankshaft Position Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9186
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9187
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9189
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9190
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9191
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9192
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9193
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9194
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9195
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9196
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9197
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9199
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9200
2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9201
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9202
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9203
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9204
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9205
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9206
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9207
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9208
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9210
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9211
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9212
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9213
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9216
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9217
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9218
View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9219
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9220
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9224
If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9226
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9230
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9232
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9234
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Crankshaft Position Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9239
Crank Sensor
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Crankshaft Position Sensor: Testing and Inspection
CRANKSHAFT POSITION SENSOR SYSTEM DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DIAGNOSTIC FAULT INFORMATION
TYPICAL SCAN TOOL DATA
CIRCUIT/SYSTEM DESCRIPTION
The crankshaft position (CKP) sensor circuits consist of an engine control module (ECM) supplied
5-volt reference circuit, low reference circuit and an output signal circuit. The CKP sensor is an
internally magnetic biased digital output integrated circuit sensing device. The sensor detects
magnetic flux changes of the teeth and slots of a 58-tooth reluctor wheel on the crankshaft. Each
tooth on the reluctor wheel is spaced at 60-tooth spacing, with 2 missing teeth for the reference
gap. The CKP sensor produces an ON/OFF DC voltage of varying frequency, with 58 output pulses
per crankshaft revolution. The frequency of the CKP sensor output depends on the velocity of the
crankshaft. The CKP sensor sends a digital signal, which represents an image of the crankshaft
reluctor wheel, to the ECM as each tooth on the wheel rotates past the CKP sensor. The ECM
uses each CKP signal pulse to determine crankshaft speed and decodes the crankshaft reluctor
wheel reference gap to identify crankshaft position. This information is then used to determine the
optimum ignition and injection points of the engine. The ECM also uses CKP sensor output
information to determine the camshaft relative position to the crankshaft, to control camshaft
phasing, and to detect cylinder misfire.
DIAGNOSTIC AIDS
- Inspect the CKP sensor connector and the ECM connector for corrosion.
- With a DTC set, the engine may crank for an extended period of time at start-up.
CIRCUIT/SYSTEM VERIFICATION
If DTC P0641 or P0651 are set diagnose those DTCs first. 1. With the ignition OFF, inspect the
engine wiring harnesses carrying the CKP sensor circuits for the following conditions:
- Close routing of secondary ignition wires
- Close routing of aftermarket electrical equipment
- Close to solenoids, motors, and relays
- Correct any wire harness routing or component placement conditions, if it is determined to be a
possible source of electrical interference.
2. Start the engine. Using the Live Plot function on the scan tool, select the CMP parameter.
Change the minimum spec to 400 RPM, and the
maximum spec to 4,000 RPM. Select the CKP sensor parameter. Change the minimum spec to
600 RPM, and the maximum spec to 3,300 RPM.
3. Observe the scan tool. 4. Quickly accelerate and release the accelerator pedal several time. Do
not exceed 3,200 RPM. The graphed lines on the Live Plot display should
track together across the screen. If the vehicle passes the Circuit/System Verification test, operate the vehicle within the Conditions
for Running the DTC. You may also operate the vehicle within the conditions that are captured in
the Freeze Frame/Failure Records data list.
CIRCUIT/SYSTEM TESTING
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IMPORTANT: You must complete the Circuit/System Verification before proceeding with
Circuit/System Testing.
1. Disconnect the CKP sensor connector. 2. Test for less than 1 ohm of resistance between low
reference circuit and ground.
- If greater than the specified value, test the low reference circuit for an open/high resistance. If the
circuit tests normal, replace the ECM.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit and ground.
- If less than the specified range, test the 5-volt reference circuit for an open/high resistance or
short to ground. If the circuit tests normal, replace the ECM.
- If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the
circuit tests normal, replace the ECM.
4. Ignition ON, test for 4.8-5.2 volts between the signal circuit and ground.
- If less than the specified range, test signal circuit for an open/high resistance or short to ground. If
the circuit tests normal, replace the ECM.
- If greater than the specified range, test signal circuit for a short to voltage. If the circuit tests
normal, replace the ECM.
5. Ignition ON, using a jumper wire connected to ground, momentarily touch the CKP sensor signal
circuit repeatedly. The CKP Active Counter
parameter should increment. If the CKP Active Counter parameter does not increment, replace the ECM.
6. Ignition OFF, inspect the CKP sensor for looseness and correct installation 7. Touch the jumper
wire to the CKP sensor signal circuit repeatedly at the connector. The CKP Active Counter
parameter should increment.
- If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.
8. Inspect the engine for the following conditions:
- Engine oil for debris
- Crankshaft reluctor wheel for damage
- The timing chain, tensioner, and sprockets for wear or damage
- If debris is found in the engine oil, inspect the internal engine components to determine the cause.
Repair or replace any worn or damaged components.
COMPONENT TESTING
IMPORTANT: You must complete the Circuit/System Testing before proceeding with Component
Testing.
1. Remove the CKP sensor from the engine and inspect the sensor and the O-ring for damage. 2.
Connect the CKP Sensor connector to the CKP Sensor; turn ON the ignition, with the engine OFF.
3. Observe the CKP Active Counter parameter on the scan tool; pass a steel object by the tip of the
sensor repeatedly. The CKP Active Counter
parameter should increment. -
If the parameter does not increment, replace the CKP sensor.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Crankshaft Position Sensor Replacement for CKP sensor replacement
- Control Module References for ECM replacement, setup, and programming See: Computers and
Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests and Procedures See: Testing and Inspection/Programming and
Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Crankshaft Position Sensor > Component Information > Service and Repair > Crankshaft Position Sensor Replacement
Crankshaft Position Sensor: Service and Repair Crankshaft Position Sensor Replacement
CRANKSHAFT POSITION SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting. 2. Disconnect the crankshaft position (CKP) sensor
electrical connector. 3. Remove the CKP sensor nut (2). 4. Remove the CKP sensor (1) from the
engine. 5. Inspect for wear, cracks, or leakage if the CKP sensor is being reused.
INSTALLATION PROCEDURE
1. Lubricate the O-ring with clean engine oil. Replace the O-rings if damaged.
2. Install the CKP sensor (1) to the block.
3. NOTE: Refer to Fastener Notice.
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Page 9244
Install the CKP sensor nut (1).
Tighten the nut to 11 N.m (97 lb in).
4. Connect the CKP sensor electrical connector. 5. Lower the vehicle.
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Page 9245
Crankshaft Position Sensor: Service and Repair Crankshaft Position System Variation Learn
CRANKSHAFT POSITION SYSTEM VARIATION LEARN
IMPORTANT: The Crankshaft Position (CKP) system variation learn procedure is also required when the
following service procedures have been performed, regardless of whether DTC P0315 is set: An engine replacement
- A engine control module (ECM) replacement
- A crankshaft balancer replacement
- A crankshaft replacement
- A CKP sensor replacement
- Any engine repairs which disturb the crankshaft to CKP sensor relationship.
- The scan tool monitors certain component signals to determine if all the conditions are met to
continue with the CKP System Variation Learn Procedure. The scan tool only displays the condition
that inhibits the procedure. The scan tool monitors the following components: CKP sensors activity-If there is a CKP sensor condition, refer to the applicable DTC that set.
- Camshaft position (CMP) signal activity-If there is a CMP signal condition, refer to the applicable
DTC that set.
- Engine coolant temperature (ECT)-If the engine coolant temperature is not warm enough, idle the
engine until the engine coolant temperature reaches the correct temperature.
1. Install a scan tool. 2. Monitor the ECM for DTCs with a scan tool. If other DTCs are set, except
DTC P0315, refer to Diagnostic Trouble Code (DTC) List - Vehicle
for the applicable DTC that set. See: Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Descriptions
3. With a scan tool, select the CKP System Variation Learn Procedure and perform the following:
1. Observe fuel cut-off for applicable engine. 2. Block drive wheels. 3. Set parking brake. 4. DO
NOT apply brake pedal. 5. Cycle ignition from OFF to ON. 6. Apply and hold brake pedal for the
duration of the procedure. 7. Start and idle engine. 8. Turn the air conditioning (A/C) OFF. 9. The
vehicle must remain in Park or Neutral.
10. IMPORTANT:
- The engine should not accelerate beyond the calibrated fuel cut-off RPM value noted in step 3.1.
Release the throttle immediately if the value is exceeded.
- While the learn procedure is in progress, release the throttle immediately when the engine starts
to decelerate. The engine control is returned to the operator and the engine responds to throttle
position after the learn procedure is complete.
Accelerate to wide open throttle (WOT) and release when the fuel cut-off occurs.
4. The scan tool displays Learn Status: Learned this Ignition. If the scan tool indicates that DTC
P0315 ran and passed, the CKP variation learn
procedure is complete. If the scan tool indicates DTC P0315 failed or did not run, refer to DTC
P0315. If any other DTCs set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the
applicable DTC. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble
Code Descriptions
5. Turn OFF the ignition for 30 seconds after the learn procedure is completed successfully in order
to store the CKP system variation values in the
ECM memory.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Ignition Switch > Ignition Switch Lock Cylinder > Component Information > Technical Service Bulletins > Customer Interest
for Ignition Switch Lock Cylinder: > 09-02-35-005C > Feb > 11 > Ignition - Key Difficult To Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: Customer Interest Ignition - Key Difficult To Remove, Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Ignition Switch > Ignition Switch Lock Cylinder > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Ignition Switch Lock Cylinder: > 09-02-35-005C > Feb > 11 > Ignition - Key Difficult To Remove, Binds
Or Sticks
Ignition Switch Lock Cylinder: All Technical Service Bulletins Ignition - Key Difficult To Remove,
Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
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Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Ignition Switch > Ignition Switch Lock Cylinder > Component Information > Technical Service Bulletins > Page 9260
Ignition Switch Lock Cylinder: Service and Repair
Key and Lock Cylinder Coding
Use Instruction Sheet Supplied
For the lock cylinder coding procedure, refer to the instruction sheet supplied in the lock cylinder
kit.
For key cutting information, refer to the instructions provided from the manufacturer of the key
cutting equipment used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Locations
Knock Sensor: Locations
Front Of Engine
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Front Of The Engine
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Rear Of The Engine
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Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions
Knock Sensor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Knock Sensor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9317
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9318
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9319
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9320
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9321
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9322
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9323
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9324
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9325
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9326
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9327
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9328
2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9329
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9330
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9331
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9332
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9334
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9335
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9336
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9337
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9338
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9339
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9340
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9341
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9342
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9343
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9344
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9345
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9346
View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9347
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9348
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9349
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9350
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9352
If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9353
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9354
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9355
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9356
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9357
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9358
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9359
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9360
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9361
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9362
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9363
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9364
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9365
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9366
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9367
Knock Sensor: Connector Views
Knock Sensor 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Diagrams > Diagram Information and Instructions > Page 9368
Knock Sensor 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement - Bank 1
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 1
KNOCK SENSOR REPLACEMENT - BANK 1
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. If equipped with front wheel drive
(FWD), disconnect the engine wiring harness electrical connector (1) from the knock sensor.
3. If equipped with all wheel drive (AWD), disconnect the engine wiring harness electrical connector
(1) from the knock sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement - Bank 1 > Page 9371
4. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement - Bank 1 > Page 9372
2. If equipped with AWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor.
3. If equipped with FWD, Connect the engine wiring harness electrical connector (1) to the knock
sensor. 4. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement - Bank 1 > Page 9373
Knock Sensor: Service and Repair Knock Sensor Replacement - Bank 2
KNOCK SENSOR REPLACEMENT - BANK 2
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Disconnect the engine wiring harness
electrical connector (2) from the knock sensor.
3. Loosen the knock sensor bolt and remove the knock sensor.
INSTALLATION PROCEDURE
IMPORTANT: DO NOT apply threadlocker to the sensor threads. The sensor threads are coated at
the factory and applying additional threadlocker affects the sensor's ability to detect detonation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System >
Knock Sensor > Component Information > Service and Repair > Knock Sensor Replacement - Bank 1 > Page 9374
1. NOTE: Refer to Fastener Notice.
Position the knock sensor to the engine and tighten the bolt.
Tighten the bolt to 25 N.m (18 lb ft).
2. Connect the engine wiring harness electrical connector (2) to the knock sensor. 3. Lower the
vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty
Extension
Technical Service Bulletin # 10250 Date: 110131
Campaign - Spark Plug Wire Warranty Extension
SPECIAL COVERAGE
Bulletin No.: 10250
Date: January 31, 2011
Subject: 10250 - Special Coverage Adjustment - Spark Plug Wire Warranty Extension
Models:
2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped with a 3.4L Engine (LNJ) 2008
Chevrolet Express, Silverado 2008 GMC Savana, Sierra Equipped with 4.3L Engine (LU3)
Condition
Some customers of 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles
equipped with a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra
vehicles equipped with a 4.3L engine (LU3) may comment about rough engine operation and the
illumination of the Check Engine Light. This may be caused by spark plug wire boots that do not
provide a sufficiently robust dielectric seal to withstand the high voltage required to fire the spark
plugs.
Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000
miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in
service, regardless of ownership. Dealers are to replace all spark plug wires and, if necessary, the
spark plug. The repairs will be made at no charge to the customer. For vehicles covered by Vehicle
Service Contracts, all eligible claims with repair orders on or after January 5, 2011, are covered by
this special coverage and must be submitted using the labor operation codes provided with this
bulletin. Claims with repair orders prior to January 5, 2011, must be submitted to the Service
Contract provider.
Vehicles Involved
Involved are 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with
a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra vehicles
equipped with a 4.3L engine (LU3).
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate
Vehicle History (GMVIS2) Application in the Applicable Warranties section. Dealership technicians
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs.
Parts Information
Parts required to complete this special coverage are to be obtained from General Motors Customer
Care and Aftersales (GMCC&A;).
* Not eligible for RIM initially for US and Canada, until sufficient inventory levels are reached.
Service Procedure
1. Connect a scan tool and start the engine. 2. Determine if any cylinders have a misfire condition.
- If a misfire condition is present or diagnostic trouble codes (DTCs) PO300-PO306 are current or
set in history, remove all of the spark plug wires and replace them with new spark plug wire set.
Refer to Spark Plug Wire Replacement in SI. Proceed to Step 3.
- If a misfire condition is NOT present in any cylinder, do NOT replace the spark plug wires. Refer
to the appropriate diagnostic information in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty
Extension > Page 9383
SI to determine the cause of the problem. Repairs that are not related to this Special Coverage
must be billed as warranty, customer pay, or goodwill.
3. Remove the spark plug from the misfiring cylinder. The spark plug should have evidence of
carbon tracking (1). Replace the spark plug that shows
evidence of carbon tracking. Refer to Spark Plug Replacement in SI.
4. Clear DTCs using a scan tool.
Customer Reimbursement - For US
All customer requests for reimbursement for previous repairs for the special coverage condition will
be handled by the Customer Assistance Center, not by dealers.
A General Motors Customer Reimbursement Procedure and Claim Form is included with the
customer letter.
Important Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific
procedures regarding customer reimbursement and the form.
Customer Reimbursement - For Canada and Export
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer prior to or by January 31, 2012. Repairs must have
occurred within the 10 years of the date the vehicle was originally placed in service, or 193,000
kilometers, whichever occurs first.
When a customer requests reimbursement, they must provide the following:
- Proof of ownership at time of repair.
- Original paid receipt confirming the amount of unreimbursed repair expense(s) (including Service
Contract deductibles), a description of the repair, and the person or entity performing the repair.
If the work was done by someone other than a GM dealership, the amount of reimbursement will
be limited to the amount that the repair would have cost GM to have it completed by a GM
dealership.
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Warranty Transaction Information
Submit a transaction using the table below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty
Extension > Page 9384
* The amount identified in "Net Item" should represent the dollar amount reimbursed to the
customer.
Customer Notification
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
Disclaimer
Owner Letter
Owner Letter
January 2011
Dear General Motors Customer:
As the owner of a 2007-2009 model year Chevrolet Equinox or Pontiac Torrent vehicle, or a 2008
Chevrolet Express, Silverado; GMC Savana or Sierra vehicle, your satisfaction with our product is
very important to us.
This letter is intended to make you aware that some 2007-2009 model year Chevrolet Equinox and
Pontiac Torrent vehicles, and some 2008 Chevrolet Express, Silverado; GMC Savana, and Sierra
vehicles may exhibit rough engine operation and the illumination of the Check Engine Light. This
may be caused by spark plug wire boots that do not provide a sufficiently robust dielectric seal to
withstand the high voltage required to fire the spark plugs.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your
vehicle has the condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the spark
plug wires. If this condition occurs on your 2007-2009 model year Chevrolet Equinox or Pontiac
Torrent vehicle, or 2008 Chevrolet Express, Silverado; GMC Savana or Sierra vehicle within 10
years of the date your vehicle was originally placed in service or 120,000 miles (193.000 km),
whichever occurs first, the condition will be repaired for you at no charge. Diagnosis or repair for
conditions other than the condition described above is not covered under this special coverage
program.
What You Should Do: If you believe that your vehicle has the condition described above, repairs
and adjustments qualifying under this special coverage must be performed by a General Motors
dealer. You may want to contact your GM dealer to find out how long they will need to have your
vehicle so that you may schedule the appointment at a time that is convenient for you. This will also
allow your dealer to order parts if they are not already in stock. Keep this letter with your other
important glove box literature for future reference.
Reimbursement: The enclosed form explains what reimbursement is available and how to request
reimbursement if you have paid for repairs for the special coverage condition. Your request for
reimbursement, including the information and documents mentioned on the enclosed form, must be
received by GM by January 31, 2012. If you have any questions or need any assistance to better
understand related repairs, please contact your dealer.
If you have questions related to a potential reimbursement, please contact the appropriate
Customer Assistance Center at the number listed below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > Recalls for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug Wire Warranty
Extension > Page 9385
We are sorry for any inconvenience you may experience; however we have taken this action in the
interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
10250
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug
Wire Warranty Extension
Technical Service Bulletin # 10250 Date: 110131
Campaign - Spark Plug Wire Warranty Extension
SPECIAL COVERAGE
Bulletin No.: 10250
Date: January 31, 2011
Subject: 10250 - Special Coverage Adjustment - Spark Plug Wire Warranty Extension
Models:
2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped with a 3.4L Engine (LNJ) 2008
Chevrolet Express, Silverado 2008 GMC Savana, Sierra Equipped with 4.3L Engine (LU3)
Condition
Some customers of 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles
equipped with a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra
vehicles equipped with a 4.3L engine (LU3) may comment about rough engine operation and the
illumination of the Check Engine Light. This may be caused by spark plug wire boots that do not
provide a sufficiently robust dielectric seal to withstand the high voltage required to fire the spark
plugs.
Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000
miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in
service, regardless of ownership. Dealers are to replace all spark plug wires and, if necessary, the
spark plug. The repairs will be made at no charge to the customer. For vehicles covered by Vehicle
Service Contracts, all eligible claims with repair orders on or after January 5, 2011, are covered by
this special coverage and must be submitted using the labor operation codes provided with this
bulletin. Claims with repair orders prior to January 5, 2011, must be submitted to the Service
Contract provider.
Vehicles Involved
Involved are 2007-2009 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with
a 3.4L engine (LNJ), and 2008 Chevrolet Express, Silverado; GMC Savana, Sierra vehicles
equipped with a 4.3L engine (LU3).
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate
Vehicle History (GMVIS2) Application in the Applicable Warranties section. Dealership technicians
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs.
Parts Information
Parts required to complete this special coverage are to be obtained from General Motors Customer
Care and Aftersales (GMCC&A;).
* Not eligible for RIM initially for US and Canada, until sufficient inventory levels are reached.
Service Procedure
1. Connect a scan tool and start the engine. 2. Determine if any cylinders have a misfire condition.
- If a misfire condition is present or diagnostic trouble codes (DTCs) PO300-PO306 are current or
set in history, remove all of the spark plug wires and replace them with new spark plug wire set.
Refer to Spark Plug Wire Replacement in SI. Proceed to Step 3.
- If a misfire condition is NOT present in any cylinder, do NOT replace the spark plug wires. Refer
to the appropriate diagnostic information in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug
Wire Warranty Extension > Page 9391
SI to determine the cause of the problem. Repairs that are not related to this Special Coverage
must be billed as warranty, customer pay, or goodwill.
3. Remove the spark plug from the misfiring cylinder. The spark plug should have evidence of
carbon tracking (1). Replace the spark plug that shows
evidence of carbon tracking. Refer to Spark Plug Replacement in SI.
4. Clear DTCs using a scan tool.
Customer Reimbursement - For US
All customer requests for reimbursement for previous repairs for the special coverage condition will
be handled by the Customer Assistance Center, not by dealers.
A General Motors Customer Reimbursement Procedure and Claim Form is included with the
customer letter.
Important Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific
procedures regarding customer reimbursement and the form.
Customer Reimbursement - For Canada and Export
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer prior to or by January 31, 2012. Repairs must have
occurred within the 10 years of the date the vehicle was originally placed in service, or 193,000
kilometers, whichever occurs first.
When a customer requests reimbursement, they must provide the following:
- Proof of ownership at time of repair.
- Original paid receipt confirming the amount of unreimbursed repair expense(s) (including Service
Contract deductibles), a description of the repair, and the person or entity performing the repair.
If the work was done by someone other than a GM dealership, the amount of reimbursement will
be limited to the amount that the repair would have cost GM to have it completed by a GM
dealership.
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Warranty Transaction Information
Submit a transaction using the table below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug
Wire Warranty Extension > Page 9392
* The amount identified in "Net Item" should represent the dollar amount reimbursed to the
customer.
Customer Notification
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
Disclaimer
Owner Letter
Owner Letter
January 2011
Dear General Motors Customer:
As the owner of a 2007-2009 model year Chevrolet Equinox or Pontiac Torrent vehicle, or a 2008
Chevrolet Express, Silverado; GMC Savana or Sierra vehicle, your satisfaction with our product is
very important to us.
This letter is intended to make you aware that some 2007-2009 model year Chevrolet Equinox and
Pontiac Torrent vehicles, and some 2008 Chevrolet Express, Silverado; GMC Savana, and Sierra
vehicles may exhibit rough engine operation and the illumination of the Check Engine Light. This
may be caused by spark plug wire boots that do not provide a sufficiently robust dielectric seal to
withstand the high voltage required to fire the spark plugs.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your
vehicle has the condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the spark
plug wires. If this condition occurs on your 2007-2009 model year Chevrolet Equinox or Pontiac
Torrent vehicle, or 2008 Chevrolet Express, Silverado; GMC Savana or Sierra vehicle within 10
years of the date your vehicle was originally placed in service or 120,000 miles (193.000 km),
whichever occurs first, the condition will be repaired for you at no charge. Diagnosis or repair for
conditions other than the condition described above is not covered under this special coverage
program.
What You Should Do: If you believe that your vehicle has the condition described above, repairs
and adjustments qualifying under this special coverage must be performed by a General Motors
dealer. You may want to contact your GM dealer to find out how long they will need to have your
vehicle so that you may schedule the appointment at a time that is convenient for you. This will also
allow your dealer to order parts if they are not already in stock. Keep this letter with your other
important glove box literature for future reference.
Reimbursement: The enclosed form explains what reimbursement is available and how to request
reimbursement if you have paid for repairs for the special coverage condition. Your request for
reimbursement, including the information and documents mentioned on the enclosed form, must be
received by GM by January 31, 2012. If you have any questions or need any assistance to better
understand related repairs, please contact your dealer.
If you have questions related to a potential reimbursement, please contact the appropriate
Customer Assistance Center at the number listed below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Spark Plug: > 10250 > Jan > 11 > Campaign - Spark Plug
Wire Warranty Extension > Page 9393
We are sorry for any inconvenience you may experience; however we have taken this action in the
interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
10250
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > Page 9394
Spark Plug: Specifications
Spark Plug Gap....................................................................................................................................
.........................................................1.52 mm (0.60 in)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > Page 9395
Spark Plug: Testing and Inspection
SPARK PLUG INSPECTION
SPARK PLUG USAGE
- Ensure that the correct spark plug is installed. An incorrect spark plug causes driveability
conditions. Refer to Ignition System Specifications for the correct spark plug.
- Ensure that the spark plug has the correct heat range. An incorrect heat range causes the
following conditions: Spark plug fouling-Colder plug
- Pre-ignition causing spark plug and/or engine damage-Hotter plug
SPARK PLUG INSPECTION
- Inspect the terminal post (1) for damage. Inspect for a bent or broken terminal post (1).
- Test for a loose terminal post (1) by twisting and pulling the post. The terminal post (1) should
NOT move.
- Inspect the insulator (2) for flashover or carbon tracking, soot. This is caused by the electrical
charge traveling across the insulator (2) between the terminal post (1) and ground. Inspect for the
following conditions: Inspect the spark plug boot for damage.
- Inspect the spark plug recess area of the cylinder head for moisture, such as oil, coolant, or
water. A spark plug boot that is saturated causes arcing to ground.
- Inspect the insulator (2) for cracks. All or part of the electrical charge may arc through the crack
instead of the electrodes (3, 4).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > Page 9396
- Inspect for evidence of improper arcing. Measure the gap between the center electrode (4) and the side electrode (3) terminals. An
excessively wide electrode gap can prevent correct spark plug operation.
- Inspect for the correct spark plug torque. Insufficient torque can prevent correct spark plug
operation. An over torqued spark plug, causes the insulator (2) to crack.
- Inspect for signs of tracking that occurred near the insulator tip instead of the center electrode (4).
- Inspect for a broken or worn side electrode (3).
- Inspect for a broken, worn, or loose center electrode (4) by shaking the spark plug. A rattling sound indicates internal damage.
- A loose center electrode (4) reduces the spark intensity.
- Inspect for bridged electrodes (3, 4). Deposits on the electrodes (3, 4) reduce or eliminates the
gap.
- Inspect for worn or missing platinum pads on the electrodes (3, 4), if equipped.
- Inspect for excessive fouling.
- Inspect the spark plug recess area of the cylinder head for debris. Dirty or damaged threads can
cause the spark plug not to seat correctly during installation.
SPARK PLUG VISUAL INSPECTION
- Normal operation-Brown to grayish-tan with small amounts of white powdery deposits are normal
combustion by-products from fuels with additives.
- Carbon fouled-Dry, fluffy, black carbon or soot caused by the following conditions: Rich fuel mixtures Leaking fuel injectors
- Excessive fuel pressure
- Restricted air filter element
- Incorrect combustion
- Reduced ignition system voltage output Weak coils
- Worn ignition wires
- Incorrect spark plug gap
- Excessive idling or slow speeds under light loads can keep spark plug temperatures so low that
normal combustion deposits may not burn off.
- Deposit fouling-Oil, coolant, or additives that include substances such as silicone, very white
coating, reduces the spark intensity. Most powdery deposits will not effect spark intensity unless
they form into a glazing over the electrode.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > Page 9397
Spark Plug: Service and Repair
SPARK PLUG REPLACEMENT
REMOVAL PROCEDURE
NOTE: Observe the following service precautions:
- Allow the engine to cool before removing the spark plugs. Attempting to remove spark plugs from
a hot engine can cause the spark plugs to seize. This can damage the cylinder head threads.
- Clean the spark plug recess area before removing the spark plug. Failure to do so can result in
engine damage due to dirt or foreign material entering the cylinder head, or in contamination of the
cylinder head threads. Contaminated threads may prevent proper seating of the new spark plug.
- Use only the spark plugs specified for use in the vehicle. Do not install spark plugs that are either
hotter or colder than those specified for the vehicle. Installing spark plugs of another type can
severely damage the engine.
1. Remove the spark plug wires from the spark plugs.
2. Remove the spark plugs (1) from the cylinder head.
INSTALLATION PROCEDURE
1. NOTE: It is important to check the gap of all new and reconditioned spark plugs before
installation. Pre-set gaps may have changed during
handling. Use a round wire feeler gauge to be sure of an accurate check, particularly on used
plugs. Installing plugs with the wrong gap can cause poor engine performance and may even
damage the engine.
Gap the spark plugs to the specifications. Refer to Ignition System Specifications.
2. NOTE:
- Be sure plug threads smoothly into cylinder head and is fully seated. Use a thread chaser if
necessary to clean threads in cylinder head. Cross-threading or failing to fully seat spark plug can
cause overheating of plug, exhaust blow-by, or thread damage. Follow the recommended torque
specifications carefully. Over or under-tightening can also cause severe damage to engine or spark
plug.
- Refer to Component Fastener Tightening Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Ignition System > Spark Plug > Component Information >
Technical Service Bulletins > Page 9398
IMPORTANT: ONLY when the cylinder head is replaced with a NEW cylinder head, the FIRST time
the spark plugs are installed, tighten the spark plugs to 20 N.m (15 lb ft). All subsequent tightening
of the spark plugs, tighten to 15 N.m (11 lb ft).
Install the spark plugs to the cylinder head.
Tighten the spark plugs to 15 N.m (11 lb ft).
3. Install the spark plug wires to the spark plugs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Pressure Regulating Solenoid, A/T > Component
Information > Locations
Pressure Regulating Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
340 - Shift Pressure Control Solenoid Valve Assembly (SLS) 316 - Line Pressure Control Solenoid
Valve Assembly (SLT)
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Information > Diagrams > Shift Pressure Control Solenoid (SLS)
Pressure Regulating Solenoid: Diagrams Shift Pressure Control Solenoid (SLS)
Shift Pressure Control Solenoid (SLS)
Shift Pressure Control Solenoid (SLS)
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Pressure Regulating Solenoid: Diagrams Line Pressure Control Solenoid (SLT)
Line Pressure Control Solenoid (SLT)
Line Pressure Control Solenoid (SLT)
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Pressure Regulating Solenoid: Diagrams Torque Converter Clutch Pressure Control Solenoid
Valve
Torque Converter Clutch Pressure Control Solenoid Valve
Torque Converter Clutch Pressure Control Solenoid Valve
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Interlock Solenoid > Component Information >
Locations
Shift Interlock Solenoid: Locations
Shift Lock Control Component Views
Below the Shifter
Below The Shifter
1 - I/P Trim 2 - Console Arm Rest 3 - Cigar Lighter 4 - Shift Lock Control Solenoid
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Locations > Page 9412
Shift Interlock Solenoid: Service and Repair
Shift Lock Solenoid/Switch Assembly Replacement
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Locations
Shift Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
300 - 1-2, 2-3, Reverse, Shift Solenoid Valve Assembly (S3) 303 - 3-4, 4-5 Shift Solenoid Valve
Assembly (S4) 305 - Reverse Shift Valve Solenoid (S5) 308 - 2-3, 3-4 Shift Solenoid Valve
Assembly (S2) 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1)
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Diagram Information and Instructions
Shift Solenoid: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Shift Solenoid: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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Diagram Information and Instructions > Page 9470
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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Diagram Information and Instructions > Page 9492
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Diagram Information and Instructions > Page 9505
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Diagram Information and Instructions > Page 9511
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Diagram Information and Instructions > Page 9515
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Diagram Information and Instructions > Page 9517
Shift Solenoid: Connector Views
Shift Solenoid 1
Shift Solenoid 1
Shift Solenoid 1
Shift Solenoid 2
Shift Solenoid 2
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Shift Solenoid 2
Shift Solenoid 3
Shift Solenoid 3
Shift Solenoid 3
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Shift Solenoid 4
Shift Solenoid 4
Shift Solenoid 4
Shift Solenoid 5
Shift Solenoid 5
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Shift Solenoid 5
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Locations
Torque Converter Clutch Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
339 - TCC Lock Up Pressure Control Solenoid Valve Assembly (SLU)
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Torque Converter Clutch Solenoid: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Torque Converter Clutch Solenoid: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Information > Diagrams > Diagram Information and Instructions > Page 9536
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 9618
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 9619
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 9620
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 9621
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 9622
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 9623
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 9624
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 9625
Torque Converter Clutch Solenoid: Connector Views
Torque Converter Clutch (TCC) Lock Up Pressure Control Solenoid (SLU)
Torque Converter Clutch (TCC) Lock Pressure Control Solenoid (SLU)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Lamps and Indicators Transmission and Drivetrain > Lamps and Indicators - A/T > Shift Indicator > Component Information > Description and
Operation
Shift Indicator: Description and Operation
Shift Indicator Description and Operation
The shift indicator, located in the console, displays the selected gear position. The body control
module (BCM) controls the LEDs in the PRNDL display of the shift indicator through 4 control
circuits. The parameters of the 4 control circuits to the shift indicator are bits A, B, C, and parity.
These outputs are available for display on the scan tool. The BCM has 8 DTCs for these 4 control
circuits. These DTCs diagnose a short or an open for each circuit. The BCM receives selected gear
position information from the transmission control module (TCM) via serial data. The TCM receives
the gear position through four inputs from the park/neutral position switch assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Customer Interest for Control Module: > 07-07-30-014 > May > 07 > A/T Controls - MIL ON/DTC's P0711
or U0101 Set
Control Module: Customer Interest A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Control Module: > 07-07-30-014 > May > 07 > A/T Controls - MIL
ON/DTC's P0711 or U0101 Set
Control Module: All Technical Service Bulletins A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 9646
Control Module: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor 62 - Automatic Transmission Output
Speed Sensor 73 - Automatic Transmission Input Speed Sensor 75 - Transmission Control Module
(TCM) 300 - 1-2, 2-3, Reverse, Shift Solenoid Valve Assembly (S3) 303 - 3-4, 4-5 Shift Solenoid
Valve Assembly (S4) 305 - Reverse Shift Valve Solenoid (S5) 308 - 2-3, 3-4 Shift Solenoid Valve
Assembly (S2) 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1) 316 - Line Pressure Control
Solenoid Valve Assembly (SLT) 339 - TCC Lock Up Pressure Control Solenoid Valve Assembly
(SLU)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 9647
340 - Shift Pressure Control Solenoid Valve Assembly (SLS)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 9648
Control Module: Diagrams
Transmission Control Module
Transmission Control Module
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 9649
Control Module: Service and Repair
TRANSMISSION CONTROL MODULE REPLACEMENT
Removal Procedure
1. Remove the battery tray. See: Starting and Charging/Battery/Battery Tray/Service and
Repair/Battery Tray Replacement
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
transmission control module (TCM).
2. Apply the parking brake and place control shift lever in neutral (N).
3. Remove the manual shaft detent lever (2). See: Sensors and Switches - Transmission and
Drivetrain/Sensors and Switches - A/T/Transmission
Position Switch/Sensor/Service and Repair/Transaxle Range Switch Replacement
4. Disconnect the electrical connectors from the TCM. 5. Remove the TCM bolts (3). 6. Remove
the TCM (4) by sliding off of the manual shaft.
Installation Procedure
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Service Bulletins > Page 9650
1. Using an adjustable wrench on the manual shaft detent lever (710), turn the shaft clockwise until
it stops. 2. Turn the shaft counterclockwise one position to the neutral location. To verify turning the
shaft in the correct direction, on the manual shaft detent
lever (710) the reverse position is larger and more resistance can be felt.
3. Inspect the condition of the connector pins on the wiring harness assembly (33) for foreign
material, bent pins, or broken pins. 4. Ensure the TCM seal (72) is installed.
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 9651
5. Turn the slot in the TCM to align the 2 marks. Do not turn more than 60 degrees.
6. Install the TCM (4) over the manual shaft.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct
part number for that application. Fasteners requiring replacement or fasteners requiring the use of
thread locking compound or sealant are identified in the service procedure. Do not use paints,
lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These
coatings affect fastener torque and joint clamping force and may damage the fastener. Use the
correct tightening sequence and specifications when installing fasteners in order to avoid damage
to parts and systems.
7. Install the bolts (3).
Tighten the bolts to 25 Nm (18 lb ft).
8. Connect the electrical connectors (3, 5) to the TCM. 9. Install the manual shaft detent lever.
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 9652
10. Install the battery tray.
Important: DTC P0602 is set with all new service transaxle control modules. When the transaxle
control module is reprogrammed with the correct software and calibrations, DTC P0602 will be
erased.
11. Reprogram the TCM with the correct calibration. See: Testing and Inspection/Programming and
Relearning 12. Perform the transmission adaptive learn procedure. See: Testing and
Inspection/Programming and Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - Differential > Control Unit, Differential Lock > Component Information >
Service and Repair
Control Unit: Service and Repair
Rear Differential Clutch Control Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Locations
Transmission Position Switch/Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
75 - Park/Neutral Position Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Locations > Page 9662
Transmission Position Switch/Sensor: Adjustments
Transaxle Range Switch Adjustment
Tools Required
* J 36346 Fascia Retainer Remover
* J 45404 Transmission Indicator Alignment Tool
1. Remove the battery tray. 2. Shift the transaxle into neutral (N) position.
3. Using the J 36346, remove the shift control cable from the transaxle range switch lever.
4. Loosen the transaxle range switch bolt (2) and stud (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Locations > Page 9663
5. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
on the J 45404.
Notice: Refer to Fastener Notice.
6. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
7. Remove the J 45404 from the manual shaft. 8. Install the shift control cable to the transaxle
range switch lever. 9. Install the battery tray.
10. After adjusting the transaxle range switch, verify the engine only starts in park (P) or neutral
(N). If the engine starts in any other position, readjust
the switch.
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Lever
Replacement
Transaxle Range Switch Lever Replacement
Tools Required
J 36346 Fascia Retainer Remover
Removal Procedure
1. Remove the battery tray.
2. Using the J 36346, disconnect the shift control cable from the transaxle range switch lever.
3. Remove the transaxle range switch lever nut and lever.
Installation Procedure
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page 9666
Notice: Refer to Fastener Notice.
1. Install the transaxle range switch lever and lever nut.
Tighten the nut to 16 N.m (12 lb ft).
2. Install the shift control cable end fitting onto the ball stud of the transaxle range switch lever. An
audible snap will be heard when properly
installed.
3. Install the battery tray.
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page 9667
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Replacement
Transaxle Range Switch Replacement
Tools Required
J 45404 Transmission Indicator Alignment Tool
Removal Procedure
1. Remove the battery tray.
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
switch.
2. Apply the parking brake and place control shift lever in neutral (N). 3. Remove the transaxle
range switch lever.
4. Disconnect the electrical connectors (3, 5) from the transaxle range switch.
5. Using a screwdriver, bend the lockwasher tabs down away from the manual shaft nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page 9668
6. Remove the nut, lock tab washer, and flat washer.
7. Remove the transaxle range switch bolt (2), stud (1), and flat washers. 8. Remove the transaxle
range switch (3).
Installation Procedure
1. Install the transaxle range switch (3) to the manual shaft lever. 2. Install the washer stud (1) and
the bolt (2). Hand tighten ONLY at this time.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page 9669
Notice: Refer to Fastener Notice.
3. Install the flat washer, lock tab washer, and nut.
Tighten the nut to 7 N.m (62 lb in).
4. Ensure the manual shaft is in neutral (N) position.
5. Bend the lock washer tabs up to secure the nut.
6. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
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Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page 9670
on the J 45404.
7. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
8. Remove the J 45404 from the manual shaft.
9. Connect the electrical connectors (3, 5) to the transaxle range switch.
10. Install the transaxle range switch lever. 11. Install the battery tray. 12. After installing and
adjusting the switch, verify the engine only starts in park (P) or neutral (N). If the engine starts in
any other position, readjust
the switch. Refer to Transaxle Range Switch Adjustment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Locations
Transmission Speed Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
62 - Automatic Transmission Output Speed Sensor 73 - Automatic Transmission Input Speed
Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Diagrams > Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Transmission Speed Sensor: Diagrams Input Shaft Speed (ISS) Sensor Connector, Wiring
Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Diagrams > Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side > Page 9676
Transmission Speed Sensor: Diagrams Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Service and Repair > Input Speed Sensor Replacement
Transmission Speed Sensor: Service and Repair Input Speed Sensor Replacement
Input Speed Sensor Replacement
Removal Procedure
1. Remove the battery tray.
2. Disconnect the wiring harness (4) from the input speed sensor.
3. Remove the input speed sensor bolt. 4. Remove the input speed sensor. 5. Remove the input
speed sensor O-ring. Discard the O-ring.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Service and Repair > Input Speed Sensor Replacement > Page 9679
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new input speed sensor
O-ring. 2. Install the new input speed sensor O-ring onto the input speed sensor. 3. Install the input
speed sensor to the transaxle.
Notice: Refer to Fastener Notice.
4. Install the input speed sensor bolt.
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (4) to the input speed sensor. 6. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Service and Repair > Input Speed Sensor Replacement > Page 9680
Transmission Speed Sensor: Service and Repair Output Speed Sensor Replacement
Output Speed Sensor Replacement
Removal Procedure
1. Disconnect the wiring harness (2) from the output shaft speed sensor.
2. Remove the output speed sensor bolt (3). 3. Remove the output shaft speed sensor (2) and the
O-ring (1).
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Service and Repair > Input Speed Sensor Replacement > Page 9681
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new output speed sensor
O-ring (1). 2. Install the new output speed sensor O-ring (1) onto the output speed sensor (2). 3.
Install the output speed sensor (2) into the transmission case assembly.
Notice: Refer to Fastener Notice.
4. Install the output speed sensor bolt (3).
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (2) to the output shaft speed sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Temperature Sensor/Switch, A/T > Component
Information > Locations
Transmission Temperature Sensor/Switch: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Temperature Sensor/Switch, A/T > Component
Information > Locations > Page 9685
Transmission Temperature Sensor/Switch: Diagrams
Automatic Transmission Fluid Temperature (TFT) Sensor
Automatic Transmission Fluid Temperature (TFT) Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - Transfer Case > Speed Sensor, Transfer Case > Component
Information > Technical Service Bulletins > Drivetrain - Updated Transfer Case Speed Sensor Conn.
Speed Sensor: Technical Service Bulletins Drivetrain - Updated Transfer Case Speed Sensor
Conn.
Bulletin No.: 06-04-21-001
Date: May 17, 2006
INFORMATION
Subject: Updated Transfer Case Connector Service Kit Now Available For Transfer Case Speed
Sensor Wire Harness Connector that Comes Loose Or Connector Retainer Clip Breaks
Models: 2007 and Prior GM Light Duty Trucks 2007 and Prior HUMMER H2, H3 2005-2007 Saab
9-7X
with Four-Wheel Drive or All-Wheel Drive
Technicians may find that when the transfer case speed sensor wire harness connector is
removed, the connector lock flexes/bends and does not return to the original position. The transfer
case speed sensor wire harness connector then has no locking device. On older vehicles, the
plastic connector retainer becomes brittle and the clip may break as soon as it is flexed. In the past,
the only service fix was to install a wire harness connector service pack, P/N 88987183. This repair
procedure involved splicing a new service connector with an integral connector lock. This
connector service kit is of the same design and was still prone to failure over time.
A new connector service repair kit is now available, P/N 15306187, that is an updated design. This
new kit should be used whenever the speed sensor wire harness connector requires replacement.
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > PROM - Programmable Read Only Memory > Component
Information > Technical Service Bulletins > Customer Interest: > 07-07-30-014 > May > 07 > A/T Controls - MIL ON/DTC's
P0711 or U0101 Set
PROM - Programmable Read Only Memory: Customer Interest A/T Controls - MIL ON/DTC's
P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > PROM - Programmable Read Only Memory > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for PROM - Programmable Read Only Memory: >
09-06-04-026C > Aug > 10 > Engine/Transmission - Aftermarket Calibrations
PROM - Programmable Read Only Memory: All Technical Service Bulletins Engine/Transmission Aftermarket Calibrations
INFORMATION
Bulletin No.: 09-06-04-026C
Date: August 13, 2010
Subject: Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V8 Gas
Engines Using Tech 2(R) or Global Diagnostic System (GDS)
Models:
2006-2011 GM Passenger Cars and Light Duty Trucks (Excluding Saab 9-7X) 2006-2009
HUMMER H2 2006-2010 HUMMER H3 Equipped with V8 Gas Powered Engines Only
Attention:
This bulletin applies to V8 gas powered engines ONLY. For Duramax(TM) diesel powered engines,
refer to the latest version of Corporate Bulletin Number 08-06-04-006G.
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 09-06-04-026A (Section 06 - Engine/Propulsion System).
General Motors is identifying an increasing number of engine, transmission and catalytic converter
part failures that are the result of non-GM (aftermarket) engine and transmission control
calibrations being used.
When alteration to the GM-released engine or transmission control calibrations occurs, it subjects
powertrain and driveline components (engine , transmission, transfer case, driveshaft and rear
axle) to stresses that were not tested by General Motors. It is because of these unknown stresses,
and the potential to alter reliability, durability and emissions performance, that GM has adopted a
policy that prevents any UNAUTHORIZED dealer warranty claim submissions to any remaining
warranty coverage, to the powertrain and driveline components whenever the presence of a
non-GM (aftermarket) calibration is confirmed - even if the non-GM control module calibration is
subsequently removed.
Warranty coverage is based on the equipment and calibrations that were released on the vehicle at
time of sale, or subsequently updated by GM. That's because GM testing and validation matches
the calibration to a host of criteria that is essential to assure reliability, durability and emissions
performance over the life of the warranty coverage and beyond. Stresses resulting from
calibrations different from those tested and released by GM can damage or weaken components,
leading to poor performance and or shortened life.
Additionally, non-GM (aftermarket) issued engine control modifications often do not meet the same
emissions performance standards as GM issued calibrations. Depending on state statutes,
individuals who install engine control module calibrations that put the vehicle outside the
parameters of emissions certification standards may be subject to fines and/or penalties.
This bulletin outlines a procedure to identify the presence of non-GM (aftermarket) calibrations. GM
recommends performing this check whenever a hard part failure is seen on internal engine or
transmission components, or before an engine assembly or transmission assembly is being
replaced under warranty. It is also recommended that the engine calibration verification procedure
be performed whenever diagnostics indicate that catalytic converter replacement is indicated.
The PQC has a process to confirm the ECM/PCM calibration is GM issued. The PQC will require a
picture of the engine calibration verification screen, as outlined in this bulletin, before authorizing
any V8 gas powered engine replacement.
If a non-GM calibration is found and verification has taken place through GM, the remaining
powertrain and driveline warranty will be blocked and notated in GMVIS and the dealership will be
notified. This block prevents any UNAUTHORIZED warranty claim submission.
1. Connect the Tech 2(R) to the vehicle. 2. Go to: Diagnostics and build the vehicle. 3. Select:
Powertrain. 4. Select: Engine. 5. *Select: Engine Control Module or PCM. 6. *Select: Module ID
Information or I/M Information System if the Module ID Information selection is not available. 7. *If
"I/M information System" was selected, it may be necessary to select "Vehicle Information" in order
to display the calibration information.
‹› If the CVN information is displayed as "N/A", it will be necessary to contact the TCSC to obtain
the CVN information.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > PROM - Programmable Read Only Memory > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for PROM - Programmable Read Only Memory: >
09-06-04-026C > Aug > 10 > Engine/Transmission - Aftermarket Calibrations > Page 9704
8. Take a CLEAR digital picture of the Tech 2(R) Vehicle Information screen showing the engine
Calibration IDs and Verification Numbers as
shown above. Retain the printout information and the Tech 2(R) screen photograph with the repair
order.
Note All pictures must be sent as a.jpg file.
9. E-mail a copy of the picture to
[email protected]. In the subject line of the e-mail include the
phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
10. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
11. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Tech 2(R) Displaying All Zeroes for the Verification Numbers on the Calibration ID and Verification
Number Screen
If the Tech 2(R) that you are using displays all zeroes for the Verification Numbers as shown, then
perform the following steps:
1. Update the Tech 2(R) with the latest software from TIS2WEB. 2. Turn OFF the ignition for 90
seconds. 3. Connect the Tech 2(R) to the vehicle. 4. Turn ON the ignition, and build the vehicle.
Observe the Tech 2(R) Calibration ID and Verification Number screen for proper operation.
‹› If the Tech 2(R) screen still does not display properly, then turn OFF the ignition for 90 seconds
again. Turn ON the ignition and observe the
same screen for proper operation.
Retrieving Calibrations From a Global A Vehicle
This information applies to the 2010 Camaro and is typical of the procedure that will be used on
Global A vehicles.
1. Turn OFF the ignition.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > PROM - Programmable Read Only Memory > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for PROM - Programmable Read Only Memory: >
09-06-04-026C > Aug > 10 > Engine/Transmission - Aftermarket Calibrations > Page 9705
2. Connect the MDI to the Data Link Connector (DLC) of the vehicle.
Note Use the USB port to make the following MDI connection:
3. Connect the MDI to a PC or laptop that has been downloaded with the GDS application from
TIS2WEB.
Note At least one Diagnostic Package must be installed on the PC to perform diagnostics. If GDS
was just installed, select: Add New Diagnostic Package and then select: a Diagnostic Package to
download.
4. Click: On the GDS icon on the PC. 5. The Login Page will appear. 6. Select: A User. 7. The ID
Screen will appear. 8. Select: The serial number of the MDI being used. 9. Select: Connect.
10. Verify that the system status is ready by observing for a flashing PC light icon on the MDI. 11.
Select: Make, Model and Model Year, in order to build the vehicle. 12. Click: Upload VIN, to allow
the VIN to be reported to the PC. 13. At: The Verification step, turn ON the ignition, with the engine
OFF. 14. Select: Next Action. 15. The Home Page will appear. 16. Select: Next. 17. The Diagnostic
Screen will appear.
Note Due to vehicle build, software and RPO variations, GDS may ask for additional information in
Step 18.
18. Select: Engine ID, if prompted. 19. Select: Module Diagnostics. 20. Select: ECM. 21. Select: ID
Information. 22. The Diagnostics page will appear.
Typical View of GDS Calibration History Screen
Note GDS is capable of displaying up to 10 Calibration History events.
23. Select: Calibration History from the drop down menu in order to display the following items on
the screen:
- Calibration History Buffer
- Number of Calibration History Events Stored
- Calibration Part Number History
- Calibration Verification Number History
24. Select: Screenshot. 25. Name and save the file in an appropriate folder. 26. Select : Print, and
retain a copy of the screenshot with the repair order.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > PROM - Programmable Read Only Memory > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for PROM - Programmable Read Only Memory: >
09-06-04-026C > Aug > 10 > Engine/Transmission - Aftermarket Calibrations > Page 9706
Note All pictures must be sent as a.jpg file.
27. E-mail a copy of the screenshot to
[email protected]. In the subject line of the e-mail
include the phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
28. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
29. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Warranty Information
- The Dealership Service Management must be involved in any situation that would justify the use
of labor operation Z1111.
- Notify the Fixed Operations Manager (FOM) (Warranty Manager (WM) in Canada) of the
situation.
- All claims will have to be routed to the FOM (WM in Canada) for approval.
- Please refer to Corporate Bulletin Number 09-00-89-016, Labor Operation Z1111 - Suspected
Tampering or Vehicle Modifications for important information.
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > PROM - Programmable Read Only Memory > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for PROM - Programmable Read Only Memory: >
07-07-30-014 > May > 07 > A/T Controls - MIL ON/DTC's P0711 or U0101 Set
PROM - Programmable Read Only Memory: All Technical Service Bulletins A/T Controls - MIL
ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > PROM - Programmable Read Only Memory > Component
Information > Technical Service Bulletins > All Other Service Bulletins for PROM - Programmable Read Only Memory: >
09-06-04-026C > Aug > 10 > Engine/Transmission - Aftermarket Calibrations
PROM - Programmable Read Only Memory: All Technical Service Bulletins Engine/Transmission Aftermarket Calibrations
INFORMATION
Bulletin No.: 09-06-04-026C
Date: August 13, 2010
Subject: Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V8 Gas
Engines Using Tech 2(R) or Global Diagnostic System (GDS)
Models:
2006-2011 GM Passenger Cars and Light Duty Trucks (Excluding Saab 9-7X) 2006-2009
HUMMER H2 2006-2010 HUMMER H3 Equipped with V8 Gas Powered Engines Only
Attention:
This bulletin applies to V8 gas powered engines ONLY. For Duramax(TM) diesel powered engines,
refer to the latest version of Corporate Bulletin Number 08-06-04-006G.
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 09-06-04-026A (Section 06 - Engine/Propulsion System).
General Motors is identifying an increasing number of engine, transmission and catalytic converter
part failures that are the result of non-GM (aftermarket) engine and transmission control
calibrations being used.
When alteration to the GM-released engine or transmission control calibrations occurs, it subjects
powertrain and driveline components (engine , transmission, transfer case, driveshaft and rear
axle) to stresses that were not tested by General Motors. It is because of these unknown stresses,
and the potential to alter reliability, durability and emissions performance, that GM has adopted a
policy that prevents any UNAUTHORIZED dealer warranty claim submissions to any remaining
warranty coverage, to the powertrain and driveline components whenever the presence of a
non-GM (aftermarket) calibration is confirmed - even if the non-GM control module calibration is
subsequently removed.
Warranty coverage is based on the equipment and calibrations that were released on the vehicle at
time of sale, or subsequently updated by GM. That's because GM testing and validation matches
the calibration to a host of criteria that is essential to assure reliability, durability and emissions
performance over the life of the warranty coverage and beyond. Stresses resulting from
calibrations different from those tested and released by GM can damage or weaken components,
leading to poor performance and or shortened life.
Additionally, non-GM (aftermarket) issued engine control modifications often do not meet the same
emissions performance standards as GM issued calibrations. Depending on state statutes,
individuals who install engine control module calibrations that put the vehicle outside the
parameters of emissions certification standards may be subject to fines and/or penalties.
This bulletin outlines a procedure to identify the presence of non-GM (aftermarket) calibrations. GM
recommends performing this check whenever a hard part failure is seen on internal engine or
transmission components, or before an engine assembly or transmission assembly is being
replaced under warranty. It is also recommended that the engine calibration verification procedure
be performed whenever diagnostics indicate that catalytic converter replacement is indicated.
The PQC has a process to confirm the ECM/PCM calibration is GM issued. The PQC will require a
picture of the engine calibration verification screen, as outlined in this bulletin, before authorizing
any V8 gas powered engine replacement.
If a non-GM calibration is found and verification has taken place through GM, the remaining
powertrain and driveline warranty will be blocked and notated in GMVIS and the dealership will be
notified. This block prevents any UNAUTHORIZED warranty claim submission.
1. Connect the Tech 2(R) to the vehicle. 2. Go to: Diagnostics and build the vehicle. 3. Select:
Powertrain. 4. Select: Engine. 5. *Select: Engine Control Module or PCM. 6. *Select: Module ID
Information or I/M Information System if the Module ID Information selection is not available. 7. *If
"I/M information System" was selected, it may be necessary to select "Vehicle Information" in order
to display the calibration information.
‹› If the CVN information is displayed as "N/A", it will be necessary to contact the TCSC to obtain
the CVN information.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > PROM - Programmable Read Only Memory > Component
Information > Technical Service Bulletins > All Other Service Bulletins for PROM - Programmable Read Only Memory: >
09-06-04-026C > Aug > 10 > Engine/Transmission - Aftermarket Calibrations > Page 9716
8. Take a CLEAR digital picture of the Tech 2(R) Vehicle Information screen showing the engine
Calibration IDs and Verification Numbers as
shown above. Retain the printout information and the Tech 2(R) screen photograph with the repair
order.
Note All pictures must be sent as a.jpg file.
9. E-mail a copy of the picture to
[email protected]. In the subject line of the e-mail include the
phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
10. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
11. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Tech 2(R) Displaying All Zeroes for the Verification Numbers on the Calibration ID and Verification
Number Screen
If the Tech 2(R) that you are using displays all zeroes for the Verification Numbers as shown, then
perform the following steps:
1. Update the Tech 2(R) with the latest software from TIS2WEB. 2. Turn OFF the ignition for 90
seconds. 3. Connect the Tech 2(R) to the vehicle. 4. Turn ON the ignition, and build the vehicle.
Observe the Tech 2(R) Calibration ID and Verification Number screen for proper operation.
‹› If the Tech 2(R) screen still does not display properly, then turn OFF the ignition for 90 seconds
again. Turn ON the ignition and observe the
same screen for proper operation.
Retrieving Calibrations From a Global A Vehicle
This information applies to the 2010 Camaro and is typical of the procedure that will be used on
Global A vehicles.
1. Turn OFF the ignition.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > PROM - Programmable Read Only Memory > Component
Information > Technical Service Bulletins > All Other Service Bulletins for PROM - Programmable Read Only Memory: >
09-06-04-026C > Aug > 10 > Engine/Transmission - Aftermarket Calibrations > Page 9717
2. Connect the MDI to the Data Link Connector (DLC) of the vehicle.
Note Use the USB port to make the following MDI connection:
3. Connect the MDI to a PC or laptop that has been downloaded with the GDS application from
TIS2WEB.
Note At least one Diagnostic Package must be installed on the PC to perform diagnostics. If GDS
was just installed, select: Add New Diagnostic Package and then select: a Diagnostic Package to
download.
4. Click: On the GDS icon on the PC. 5. The Login Page will appear. 6. Select: A User. 7. The ID
Screen will appear. 8. Select: The serial number of the MDI being used. 9. Select: Connect.
10. Verify that the system status is ready by observing for a flashing PC light icon on the MDI. 11.
Select: Make, Model and Model Year, in order to build the vehicle. 12. Click: Upload VIN, to allow
the VIN to be reported to the PC. 13. At: The Verification step, turn ON the ignition, with the engine
OFF. 14. Select: Next Action. 15. The Home Page will appear. 16. Select: Next. 17. The Diagnostic
Screen will appear.
Note Due to vehicle build, software and RPO variations, GDS may ask for additional information in
Step 18.
18. Select: Engine ID, if prompted. 19. Select: Module Diagnostics. 20. Select: ECM. 21. Select: ID
Information. 22. The Diagnostics page will appear.
Typical View of GDS Calibration History Screen
Note GDS is capable of displaying up to 10 Calibration History events.
23. Select: Calibration History from the drop down menu in order to display the following items on
the screen:
- Calibration History Buffer
- Number of Calibration History Events Stored
- Calibration Part Number History
- Calibration Verification Number History
24. Select: Screenshot. 25. Name and save the file in an appropriate folder. 26. Select : Print, and
retain a copy of the screenshot with the repair order.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Powertrain Management > PROM - Programmable Read Only Memory > Component
Information > Technical Service Bulletins > All Other Service Bulletins for PROM - Programmable Read Only Memory: >
09-06-04-026C > Aug > 10 > Engine/Transmission - Aftermarket Calibrations > Page 9718
Note All pictures must be sent as a.jpg file.
27. E-mail a copy of the screenshot to
[email protected]. In the subject line of the e-mail
include the phrase "V8 Cal" as well as the complete VIN
and Dealer BAC. In the body of the e-mail, include the VIN, mileage, R.O. number and BAC.
Include a brief description of the customer concern and cause of the concern.
Note The dealer will receive an e-mail reply after the calibrations have been validated. The e-mail
reply will advise the dealer if the calibrations are OEM.
28. Allow two hours for the PQC to verify the calibrations and set up the case details.
‹› If the PQC determines that the calibrations ARE aftermarket calibrations, DO NOT contact GM
Technical Assistance to discuss warranty
concerns on the aftermarket calibrations. ALL questions and concerns about warranty should be
directed to the dealers Fixed Operations Manager (FOM), (Warranty Manager (WM) in Canada).
29. You may call the PQC two hours after submitting the e-mail for authorization to replace the
assembly. This will provide them time to receive,
review and set up a case on the request. Please be prepared to provide all the usual
documentation that is normally required when requesting an assembly authorization from the PQC.
Warranty Information
- The Dealership Service Management must be involved in any situation that would justify the use
of labor operation Z1111.
- Notify the Fixed Operations Manager (FOM) (Warranty Manager (WM) in Canada) of the
situation.
- All claims will have to be routed to the FOM (WM in Canada) for approval.
- Please refer to Corporate Bulletin Number 09-00-89-016, Labor Operation Z1111 - Suspected
Tampering or Vehicle Modifications for important information.
For vehicles repaired under warranty, use the table.
Disclaimer
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Actuators and Solenoids - A/T > Pressure Regulating Solenoid, A/T > Component Information > Locations
Pressure Regulating Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
340 - Shift Pressure Control Solenoid Valve Assembly (SLS) 316 - Line Pressure Control Solenoid
Valve Assembly (SLT)
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Control Solenoid (SLS)
Pressure Regulating Solenoid: Diagrams Shift Pressure Control Solenoid (SLS)
Shift Pressure Control Solenoid (SLS)
Shift Pressure Control Solenoid (SLS)
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Control Solenoid (SLS) > Page 9727
Pressure Regulating Solenoid: Diagrams Line Pressure Control Solenoid (SLT)
Line Pressure Control Solenoid (SLT)
Line Pressure Control Solenoid (SLT)
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Control Solenoid (SLS) > Page 9728
Pressure Regulating Solenoid: Diagrams Torque Converter Clutch Pressure Control Solenoid
Valve
Torque Converter Clutch Pressure Control Solenoid Valve
Torque Converter Clutch Pressure Control Solenoid Valve
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Actuators and Solenoids - A/T > Shift Interlock Solenoid > Component Information > Locations
Shift Interlock Solenoid: Locations
Shift Lock Control Component Views
Below the Shifter
Below The Shifter
1 - I/P Trim 2 - Console Arm Rest 3 - Cigar Lighter 4 - Shift Lock Control Solenoid
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Shift Interlock Solenoid: Service and Repair
Shift Lock Solenoid/Switch Assembly Replacement
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Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Locations
Shift Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
300 - 1-2, 2-3, Reverse, Shift Solenoid Valve Assembly (S3) 303 - 3-4, 4-5 Shift Solenoid Valve
Assembly (S4) 305 - Reverse Shift Valve Solenoid (S5) 308 - 2-3, 3-4 Shift Solenoid Valve
Assembly (S2) 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1)
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Shift Solenoid: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Instructions > Page 9739
Electrical Symbols Part 3
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Instructions > Page 9740
Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Shift Solenoid: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Instructions > Page 9748
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Instructions > Page 9828
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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Instructions > Page 9829
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Instructions > Page 9830
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Instructions > Page 9831
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Instructions > Page 9832
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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Instructions > Page 9833
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Instructions > Page 9834
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Instructions > Page 9835
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Instructions > Page 9836
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Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 9837
Shift Solenoid: Connector Views
Shift Solenoid 1
Shift Solenoid 1
Shift Solenoid 1
Shift Solenoid 2
Shift Solenoid 2
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Instructions > Page 9838
Shift Solenoid 2
Shift Solenoid 3
Shift Solenoid 3
Shift Solenoid 3
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Instructions > Page 9839
Shift Solenoid 4
Shift Solenoid 4
Shift Solenoid 4
Shift Solenoid 5
Shift Solenoid 5
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Instructions > Page 9840
Shift Solenoid 5
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Chevrolet Workshop Manuals > Transmission and Drivetrain > Actuators and Solenoids - Transmission and Drivetrain >
Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Locations
Torque Converter Clutch Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
339 - TCC Lock Up Pressure Control Solenoid Valve Assembly (SLU)
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Information and Instructions
Torque Converter Clutch Solenoid: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Information and Instructions > Page 9846
Electrical Symbols Part 2
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Information and Instructions > Page 9847
Electrical Symbols Part 3
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Information and Instructions > Page 9848
Electrical Symbols Part 4
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Information and Instructions > Page 9849
Electrical Symbols Part 5
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Information and Instructions > Page 9850
Electrical Symbols Part 6
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Information and Instructions > Page 9851
Electrical Symbols Part 7
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Information and Instructions > Page 9852
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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Information and Instructions > Page 9853
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Information and Instructions > Page 9854
Torque Converter Clutch Solenoid: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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Information and Instructions > Page 9889
1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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Information and Instructions > Page 9890
3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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Information and Instructions > Page 9891
4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Information and Instructions > Page 9892
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Information and Instructions > Page 9893
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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Information and Instructions > Page 9894
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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Information and Instructions > Page 9895
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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Information and Instructions > Page 9896
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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Information and Instructions > Page 9897
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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Information and Instructions > Page 9898
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Information and Instructions > Page 9899
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Information and Instructions > Page 9900
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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Information and Instructions > Page 9901
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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Information and Instructions > Page 9902
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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Information and Instructions > Page 9903
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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Information and Instructions > Page 9904
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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Information and Instructions > Page 9905
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Information and Instructions > Page 9906
2. Slide the lever lock forward while pressing down on the lever lock release tab.
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Information and Instructions > Page 9907
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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Information and Instructions > Page 9908
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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Information and Instructions > Page 9909
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Information and Instructions > Page 9910
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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Information and Instructions > Page 9911
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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Information and Instructions > Page 9912
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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Information and Instructions > Page 9913
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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Information and Instructions > Page 9914
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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Information and Instructions > Page 9915
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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Information and Instructions > Page 9916
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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Information and Instructions > Page 9918
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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Information and Instructions > Page 9919
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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Information and Instructions > Page 9920
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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Information and Instructions > Page 9924
View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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Information and Instructions > Page 9925
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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Information and Instructions > Page 9927
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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Information and Instructions > Page 9928
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Information and Instructions > Page 9936
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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Information and Instructions > Page 9937
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Information and Instructions > Page 9938
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Information and Instructions > Page 9939
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Information and Instructions > Page 9940
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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Information and Instructions > Page 9941
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Information and Instructions > Page 9942
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information and Instructions > Page 9943
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Information and Instructions > Page 9944
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram
Information and Instructions > Page 9945
Torque Converter Clutch Solenoid: Connector Views
Torque Converter Clutch (TCC) Lock Up Pressure Control Solenoid (SLU)
Torque Converter Clutch (TCC) Lock Pressure Control Solenoid (SLU)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Pressure Regulating Solenoid, A/T > Component Information > Locations
Pressure Regulating Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
340 - Shift Pressure Control Solenoid Valve Assembly (SLS) 316 - Line Pressure Control Solenoid
Valve Assembly (SLT)
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Solenoids - A/T > Pressure Regulating Solenoid, A/T > Component Information > Diagrams > Shift Pressure Control
Solenoid (SLS)
Pressure Regulating Solenoid: Diagrams Shift Pressure Control Solenoid (SLS)
Shift Pressure Control Solenoid (SLS)
Shift Pressure Control Solenoid (SLS)
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Solenoids - A/T > Pressure Regulating Solenoid, A/T > Component Information > Diagrams > Shift Pressure Control
Solenoid (SLS) > Page 9953
Pressure Regulating Solenoid: Diagrams Line Pressure Control Solenoid (SLT)
Line Pressure Control Solenoid (SLT)
Line Pressure Control Solenoid (SLT)
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Solenoid (SLS) > Page 9954
Pressure Regulating Solenoid: Diagrams Torque Converter Clutch Pressure Control Solenoid
Valve
Torque Converter Clutch Pressure Control Solenoid Valve
Torque Converter Clutch Pressure Control Solenoid Valve
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Shift Interlock Solenoid > Component Information > Locations
Shift Interlock Solenoid: Locations
Shift Lock Control Component Views
Below the Shifter
Below The Shifter
1 - I/P Trim 2 - Console Arm Rest 3 - Cigar Lighter 4 - Shift Lock Control Solenoid
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Solenoids - A/T > Shift Interlock Solenoid > Component Information > Locations > Page 9958
Shift Interlock Solenoid: Service and Repair
Shift Lock Solenoid/Switch Assembly Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Shift Solenoid, A/T > Component Information > Locations
Shift Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
300 - 1-2, 2-3, Reverse, Shift Solenoid Valve Assembly (S3) 303 - 3-4, 4-5 Shift Solenoid Valve
Assembly (S4) 305 - Reverse Shift Valve Solenoid (S5) 308 - 2-3, 3-4 Shift Solenoid Valve
Assembly (S2) 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1)
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Shift Solenoid: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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9964
Electrical Symbols Part 2
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Electrical Symbols Part 3
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9966
Electrical Symbols Part 4
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9967
Electrical Symbols Part 5
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9968
Electrical Symbols Part 6
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9969
Electrical Symbols Part 7
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9970
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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9971
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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9972
Shift Solenoid: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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9974
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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9975
resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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9976
electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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9981
IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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10013
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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10016
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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10046
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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10052
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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10054
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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10059
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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10061
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10062
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10063
Shift Solenoid: Connector Views
Shift Solenoid 1
Shift Solenoid 1
Shift Solenoid 1
Shift Solenoid 2
Shift Solenoid 2
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10064
Shift Solenoid 2
Shift Solenoid 3
Shift Solenoid 3
Shift Solenoid 3
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Shift Solenoid 4
Shift Solenoid 4
Shift Solenoid 4
Shift Solenoid 5
Shift Solenoid 5
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Shift Solenoid 5
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Torque Converter Clutch Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
339 - TCC Lock Up Pressure Control Solenoid Valve Assembly (SLU)
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Torque Converter Clutch Solenoid: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Torque Converter Clutch Solenoid: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Instructions > Page 10090
Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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Instructions > Page 10092
- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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Instructions > Page 10093
1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Instructions > Page 10136
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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Instructions > Page 10138
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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Instructions > Page 10140
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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Instructions > Page 10151
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10159
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10160
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10161
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10162
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10163
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10164
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10165
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10166
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10167
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10168
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10169
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10170
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Actuators and
Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and
Instructions > Page 10171
Torque Converter Clutch Solenoid: Connector Views
Torque Converter Clutch (TCC) Lock Up Pressure Control Solenoid (SLU)
Torque Converter Clutch (TCC) Lock Pressure Control Solenoid (SLU)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Channel Plate, A/T >
Component Information > Technical Service Bulletins > Customer Interest: > 01-07-30-032E > Sep > 08 > A/T - 4T65E Fluid
Leaking From A/T Vent
Channel Plate: Customer Interest A/T - 4T65E Fluid Leaking From A/T Vent
TECHNICAL
Bulletin No.: 01-07-30-032E
Date: September 29, 2008
Subject: Transmission Oil Leaking From Transmission Vent (Replace Transmission Case Cover
(Channel Plate) Gasket)
Models: 1997-2009 GM Passenger Cars and Light Duty Trucks (including Saturn)
with Hydra-Matic 4T65-E Automatic Transmission (RPOs MN3, MN7, M15, M76)
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 01-07-30-032D (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak.
Cause
This condition may be caused by an improperly torqued channel plate gasket.
Correction
To correct this condition, replace the case cover (channel plate) gaskets (429 and 430). Refer to
Unit Repair publication in SI of the appropriate vehicle being serviced.
Visual inspection of the upper gasket (1) will reveal damage at the referenced area.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Channel Plate, A/T >
Component Information > Technical Service Bulletins > Customer Interest: > 01-07-30-032E > Sep > 08 > A/T - 4T65E Fluid
Leaking From A/T Vent > Page 10180
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Channel Plate, A/T >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Channel Plate: > 01-07-30-036H
> Jan > 09 > A/T Control - DTC P0756 Diagnostic Tips
Channel Plate: All Technical Service Bulletins A/T Control - DTC P0756 Diagnostic Tips
INFORMATION
Bulletin No.: 01-07-30-036H
Date: January 29, 2009
Subject: Diagnostic Tips for Automatic Transmission DTC P0756, Second, Third, Fourth Gear Start
Models: 2009 and Prior GM Passenger Cars and Light Duty Trucks 2009 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
with 4L60-E, 4L65-E or 4L70E Automatic Transmission (RPOs M30, M32 or M70)
Supercede:
This bulletin is being revised to add the 2009 model year and add details regarding spacer plates.
Please discard Corporate Bulletin Number 01-07-30-036G (Section 07 - Transmission/Transaxle).
Some dealership technicians may have difficulty diagnosing DTC P0756, 2-3 Shift Valve
Performance on 4L60-E, 4L65-E or 4L70E automatic transmissions. As detailed in the Service
Manual, when the PCM detects a 4-3-3-4 shift pattern, DTC P0756 will set. Some customers may
also describe a condition of a second, third or fourth gear start that may have the same causes but
has not set this DTC yet. Below are some tips when diagnosing this DTC:
^ This is a performance code. This means that a mechanical malfunction exists.
^ This code is not set by electrical issues such as a damaged wiring harness or poor electrical
connections. Electrical problems would cause a DTC P0758, P0787 or P0788 to set.
^ The most likely cause is chips/debris plugging the filtered AFL oil at orifice # 29 on the top of the
spacer plate (48). This is a very small hole and is easily plugged by a small amount of debris. It is
important to remove the spacer plate and inspect orifice # 29 and the immediate area for the
presence of chips/debris. Also, the transmission case passage directly above this orifice and the
valve body passage directly below should be inspected and cleaned of any chips/debris. For 2003
and newer vehicles the spacer plate should be replaced. The service replacement spacer plate is a
bonded style with gaskets and solenoid filter screens bonded to the spacer plate. These screens
can help to prevent plugging of orifice # 29 caused by small debris or chips.
^ This code could be set if the 2-3 shift valve (368) were stuck or hung-up in its bore. Inspect the
2-3 shift valve (368) and the 2-3 shuttle valve (369) for free movement or damage and clean the
valves, the bore and the valve body passages.
^ This code could be set by a 2-3 shift solenoid (367b) if it were cracked, broken or leaking. Refer
to Shift Solenoid Leak Test in the appropriate Service Manual for the leak test procedure. Based on
parts return findings, a damaged or leaking shift solenoid is the least likely cause of this condition.
Simply replacing a shift solenoid will not correct this condition unless the solenoid has been found
to be cracked, broken or leaking.
It is important to also refer to the appropriate Service Manual or Service Information (SI) for further
possible causes of this condition.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Channel Plate, A/T >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Channel Plate: > 01-07-30-032E
> Sep > 08 > A/T - 4T65E Fluid Leaking From A/T Vent
Channel Plate: All Technical Service Bulletins A/T - 4T65E Fluid Leaking From A/T Vent
TECHNICAL
Bulletin No.: 01-07-30-032E
Date: September 29, 2008
Subject: Transmission Oil Leaking From Transmission Vent (Replace Transmission Case Cover
(Channel Plate) Gasket)
Models: 1997-2009 GM Passenger Cars and Light Duty Trucks (including Saturn)
with Hydra-Matic 4T65-E Automatic Transmission (RPOs MN3, MN7, M15, M76)
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 01-07-30-032D (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak.
Cause
This condition may be caused by an improperly torqued channel plate gasket.
Correction
To correct this condition, replace the case cover (channel plate) gaskets (429 and 430). Refer to
Unit Repair publication in SI of the appropriate vehicle being serviced.
Visual inspection of the upper gasket (1) will reveal damage at the referenced area.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Channel Plate, A/T >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Channel Plate: > 01-07-30-032E
> Sep > 08 > A/T - 4T65E Fluid Leaking From A/T Vent > Page 10190
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Channel Plate, A/T >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Channel Plate: > 01-07-30-036H >
Jan > 09 > A/T Control - DTC P0756 Diagnostic Tips
Channel Plate: All Technical Service Bulletins A/T Control - DTC P0756 Diagnostic Tips
INFORMATION
Bulletin No.: 01-07-30-036H
Date: January 29, 2009
Subject: Diagnostic Tips for Automatic Transmission DTC P0756, Second, Third, Fourth Gear Start
Models: 2009 and Prior GM Passenger Cars and Light Duty Trucks 2009 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
with 4L60-E, 4L65-E or 4L70E Automatic Transmission (RPOs M30, M32 or M70)
Supercede:
This bulletin is being revised to add the 2009 model year and add details regarding spacer plates.
Please discard Corporate Bulletin Number 01-07-30-036G (Section 07 - Transmission/Transaxle).
Some dealership technicians may have difficulty diagnosing DTC P0756, 2-3 Shift Valve
Performance on 4L60-E, 4L65-E or 4L70E automatic transmissions. As detailed in the Service
Manual, when the PCM detects a 4-3-3-4 shift pattern, DTC P0756 will set. Some customers may
also describe a condition of a second, third or fourth gear start that may have the same causes but
has not set this DTC yet. Below are some tips when diagnosing this DTC:
^ This is a performance code. This means that a mechanical malfunction exists.
^ This code is not set by electrical issues such as a damaged wiring harness or poor electrical
connections. Electrical problems would cause a DTC P0758, P0787 or P0788 to set.
^ The most likely cause is chips/debris plugging the filtered AFL oil at orifice # 29 on the top of the
spacer plate (48). This is a very small hole and is easily plugged by a small amount of debris. It is
important to remove the spacer plate and inspect orifice # 29 and the immediate area for the
presence of chips/debris. Also, the transmission case passage directly above this orifice and the
valve body passage directly below should be inspected and cleaned of any chips/debris. For 2003
and newer vehicles the spacer plate should be replaced. The service replacement spacer plate is a
bonded style with gaskets and solenoid filter screens bonded to the spacer plate. These screens
can help to prevent plugging of orifice # 29 caused by small debris or chips.
^ This code could be set if the 2-3 shift valve (368) were stuck or hung-up in its bore. Inspect the
2-3 shift valve (368) and the 2-3 shuttle valve (369) for free movement or damage and clean the
valves, the bore and the valve body passages.
^ This code could be set by a 2-3 shift solenoid (367b) if it were cracked, broken or leaking. Refer
to Shift Solenoid Leak Test in the appropriate Service Manual for the leak test procedure. Based on
parts return findings, a damaged or leaking shift solenoid is the least likely cause of this condition.
Simply replacing a shift solenoid will not correct this condition unless the solenoid has been found
to be cracked, broken or leaking.
It is important to also refer to the appropriate Service Manual or Service Information (SI) for further
possible causes of this condition.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Clutch, A/T >
Component Information > Technical Service Bulletins > Customer Interest for Clutch: > 08-07-30-009B > May > 08 > A/T 4T80E, Slips in Gear/L/H Axle Seal Leaks
Clutch: Customer Interest A/T - 4T80E, Slips in Gear/L/H Axle Seal Leaks
TECHNICAL
Bulletin No.: 08-07-30-009B
Date: May 01, 2008
Subject: HYDRA-MATIC(R) Front Wheel Drive 4T80-E (MH1) Left Front Axle Seal Leak,
Transmission Slips in Gear (Replace Third Clutch Housing with Revised Service Part)
Models: 2001-2008 GM Passenger Cars
with HYDRA-MATIC(R) Front Wheel Drive 4T80-E Automatic Transmission (RPO - MH1)
Supercede:
This bulletin is being updated to revise the Warranty Information. Please discard Corporate Bulletin
Number 08-07-30-009A (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak and/or that the transmission slips in
gear.
Cause
An oil leak may be caused by bushing wear in the third clutch housing, causing excessive fluid
build-up at axe sea.
Correction
Important:
DO NOT replace the transmission for above concerns.
Replace the third clutch housing with service P/N 8682114, which has revised bushing material to
extend life and reduce left front axle seal leaks. Refer to Automatic/Transaxle - 4T80-E
Transmission Off-Vehicle Repair Instructions for the replacement of the third clutch housing in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Clutch, A/T >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Clutch: > 08-07-30-009B > May >
08 > A/T - 4T80E, Slips in Gear/L/H Axle Seal Leaks
Clutch: All Technical Service Bulletins A/T - 4T80E, Slips in Gear/L/H Axle Seal Leaks
TECHNICAL
Bulletin No.: 08-07-30-009B
Date: May 01, 2008
Subject: HYDRA-MATIC(R) Front Wheel Drive 4T80-E (MH1) Left Front Axle Seal Leak,
Transmission Slips in Gear (Replace Third Clutch Housing with Revised Service Part)
Models: 2001-2008 GM Passenger Cars
with HYDRA-MATIC(R) Front Wheel Drive 4T80-E Automatic Transmission (RPO - MH1)
Supercede:
This bulletin is being updated to revise the Warranty Information. Please discard Corporate Bulletin
Number 08-07-30-009A (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak and/or that the transmission slips in
gear.
Cause
An oil leak may be caused by bushing wear in the third clutch housing, causing excessive fluid
build-up at axe sea.
Correction
Important:
DO NOT replace the transmission for above concerns.
Replace the third clutch housing with service P/N 8682114, which has revised bushing material to
extend life and reduce left front axle seal leaks. Refer to Automatic/Transaxle - 4T80-E
Transmission Off-Vehicle Repair Instructions for the replacement of the third clutch housing in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Control Module, A/T >
Component Information > Technical Service Bulletins > Customer Interest for Control Module: > 07-07-30-014 > May > 07 >
A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Control Module: Customer Interest A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Control Module, A/T >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Control Module: > 07-07-30-014 >
May > 07 > A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Control Module: All Technical Service Bulletins A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Control Module, A/T >
Component Information > Technical Service Bulletins > Page 10222
Control Module: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor 62 - Automatic Transmission Output
Speed Sensor 73 - Automatic Transmission Input Speed Sensor 75 - Transmission Control Module
(TCM) 300 - 1-2, 2-3, Reverse, Shift Solenoid Valve Assembly (S3) 303 - 3-4, 4-5 Shift Solenoid
Valve Assembly (S4) 305 - Reverse Shift Valve Solenoid (S5) 308 - 2-3, 3-4 Shift Solenoid Valve
Assembly (S2) 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1) 316 - Line Pressure Control
Solenoid Valve Assembly (SLT) 339 - TCC Lock Up Pressure Control Solenoid Valve Assembly
(SLU)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Control Module, A/T >
Component Information > Technical Service Bulletins > Page 10223
340 - Shift Pressure Control Solenoid Valve Assembly (SLS)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Control Module, A/T >
Component Information > Technical Service Bulletins > Page 10224
Control Module: Diagrams
Transmission Control Module
Transmission Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Control Module, A/T >
Component Information > Technical Service Bulletins > Page 10225
Control Module: Service and Repair
TRANSMISSION CONTROL MODULE REPLACEMENT
Removal Procedure
1. Remove the battery tray. See: Starting and Charging/Battery/Battery Tray/Service and
Repair/Battery Tray Replacement
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
transmission control module (TCM).
2. Apply the parking brake and place control shift lever in neutral (N).
3. Remove the manual shaft detent lever (2). See: Sensors and Switches - A/T/Transmission
Position Switch/Sensor/Service and Repair/Transaxle
Range Switch Replacement
4. Disconnect the electrical connectors from the TCM. 5. Remove the TCM bolts (3). 6. Remove
the TCM (4) by sliding off of the manual shaft.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Control Module, A/T >
Component Information > Technical Service Bulletins > Page 10226
1. Using an adjustable wrench on the manual shaft detent lever (710), turn the shaft clockwise until
it stops. 2. Turn the shaft counterclockwise one position to the neutral location. To verify turning the
shaft in the correct direction, on the manual shaft detent
lever (710) the reverse position is larger and more resistance can be felt.
3. Inspect the condition of the connector pins on the wiring harness assembly (33) for foreign
material, bent pins, or broken pins. 4. Ensure the TCM seal (72) is installed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Control Module, A/T >
Component Information > Technical Service Bulletins > Page 10227
5. Turn the slot in the TCM to align the 2 marks. Do not turn more than 60 degrees.
6. Install the TCM (4) over the manual shaft.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct
part number for that application. Fasteners requiring replacement or fasteners requiring the use of
thread locking compound or sealant are identified in the service procedure. Do not use paints,
lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These
coatings affect fastener torque and joint clamping force and may damage the fastener. Use the
correct tightening sequence and specifications when installing fasteners in order to avoid damage
to parts and systems.
7. Install the bolts (3).
Tighten the bolts to 25 Nm (18 lb ft).
8. Connect the electrical connectors (3, 5) to the TCM. 9. Install the manual shaft detent lever.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Control Module, A/T >
Component Information > Technical Service Bulletins > Page 10228
10. Install the battery tray.
Important: DTC P0602 is set with all new service transaxle control modules. When the transaxle
control module is reprogrammed with the correct software and calibrations, DTC P0602 will be
erased.
11. Reprogram the TCM with the correct calibration. See: Testing and Inspection/Programming and
Relearning 12. Perform the transmission adaptive learn procedure. See: Testing and
Inspection/Programming and Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Automatic
Transmission Dipstick - Dipstick Tube > Component Information > Service and Repair
Automatic Transmission Dipstick - Dipstick Tube: Service and Repair
Fluid Level Indicator Replacement
Removal Procedure
1. Clean any dirt or debris away from the transaxle fluid plug/level indicator area.
2. Remove the transaxle fluid level indicator bolt from the transaxle. 3. Remove the transaxle fluid
level indicator from the transaxle. 4. Wipe away any transaxle fluid from the fluid level indicator.
Installation Procedure
1. Install the transaxle fluid level indicator onto the transaxle.
Notice: Refer to Fastener Notice.
2. Install the transaxle fluid level indicator bolt onto the transaxle.
Tighten the bolt to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid - A/T >
Component Information > Technical Service Bulletins > A/T - Water Or Coolant Contamination Information
Fluid - A/T: Technical Service Bulletins A/T - Water Or Coolant Contamination Information
INFORMATION
Bulletin No.: 08-07-30-035B
Date: November 01, 2010
Subject: Information on Water or Ethylene Glycol in Transmission Fluid
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks with Automatic Transmission
Supercede: This bulletin is being revised to update model years. Please discard Corporate Bulletin
Number 08-07-30-035A (Section 07 - Transmission/Transaxle).
Water or ethylene glycol in automatic transmission fluid (ATF) is harmful to internal transmission
components and will have a negative effect on reliability and durability of these parts. Water or
ethylene glycol in ATF will also change the friction of the clutches, frequently resulting in shudder
during engagement or gear changes, especially during torque converter clutch engagement.
Indications of water in the ATF may include:
- ATF blowing out of the transmission vent tube.
- ATF may appear cloudy or, in cases of extreme contamination, have the appearance of a
strawberry milkshake.
- Visible water in the oil pan.
- A milky white substance inside the pan area.
- Spacer plate gaskets that appear to be glued to the valve body face or case.
- Spacer plate gaskets that appear to be swollen or wrinkled in areas where they are not
compressed.
- Rust on internal transmission iron/steel components.
If water in the ATF has been found and the source of the water entry has not been identified, or if a
leaking in-radiator transmission oil cooler is suspected (with no evidence of cross-contamination in
the coolant recovery reservoir), a simple and quick test kit is available that detects the presence of
ethylene glycol in ATF. The "Gly-Tek" test kit, available from the Nelco Company, should be
obtained and the ATF tested to make an accurate decision on the need for radiator replacement.
This can help to prevent customer comebacks if the in-radiator transmission oil cooler is leaking
and reduce repair expenses by avoiding radiator replacement if the cooler is not leaking. These
test kits can be obtained from:
Nelco Company
Test kits can be ordered by phone or through the website listed above. Orders are shipped
standard delivery time but can be shipped on a next day delivery basis for an extra charge. One
test kit will complete 10 individual fluid sample tests. For vehicles repaired under warranty, the cost
of the complete test kit plus shipping charges should be divided by 10 and submitted on the
warranty claim as a net item.
The transmission should be repaired or replaced based on the normal cost comparison procedure.
Important If water or coolant is found in the transmission, the following components MUST be
replaced.
- Replace all of the rubber-type seals.
- Replace all of the composition-faced clutch plates and/or bands.
- Replace all of the nylon parts.
- Replace the torque converter.
- Thoroughly clean and rebuild the transmission, using new gaskets and oil filter.
Important The following steps must be completed when repairing or replacing.
Flush and flow check the transmission oil cooler using J 45096. Refer to Corporate Bulletin Number
02-07-30-052F- Automatic Transmission Oil Cooler Flush and Flow Test Essential Tool J 45096
TransFlow.
- Thoroughly inspect the engine cooling system and hoses and clean/repair as necessary.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid - A/T >
Component Information > Technical Service Bulletins > A/T - Water Or Coolant Contamination Information > Page 10236
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid - A/T >
Component Information > Specifications > Capacity Specifications
Fluid - A/T: Capacity Specifications
Fluid Capacity Specifications
AUTOMATIC TRANSMISSION Remove Drain Plug/Fill .....................................................................
.................................................................................................... 4.06 liters (4.29 qts) Overhaul ........
..............................................................................................................................................................
............................... 7.8 liters (8.2 qts)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid - A/T >
Component Information > Specifications > Capacity Specifications > Page 10239
Fluid - A/T: Fluid Type Specifications
AUTOMATIC TRANSAXLE FLUID Use only T-IV Automatic Transmission Fluid (GM Part No. U.S.
88900925, in Canada 22689186).
NOTICE: Use of the incorrect automatic transaxle fluid may damage your vehicle, and the
damages may not be covered by your warranty.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid - A/T >
Component Information > Specifications > Page 10240
Fluid - A/T: Testing and Inspection
Transmission Fluid Checking
Description
Inspection of the transaxle fluid level, correct type of fluid, and the condition of the fluid for accurate
operation of the transaxle.
Procedure
Important: Routine inspection of the transaxle fluid is not required. Transaxle fluid inspection is only
required if there is a symptom indicating a concern with the fluid.
1. Park the vehicle on a flat level surface. 2. Operate the vehicle in order for the transmission fluid
temperature to reach the normal operating range.
Transaxle normal temperature: 60-70 degrees C (140-158 degrees F)
3. With the engine at idle, manual shift through all transaxle ranges and return to the PARK
position. Leave the engine idling. 4. Clean any dirt or debris away from the area of the transaxle
fluid level indicator. 5. Remove the transaxle fluid level indicator bolt (1) from the transaxle. 6.
Remove the transaxle fluid level indicator (2). 7. Wipe away any transaxle fluid from the indicator.
8. Insert the indicator into the transaxle until fully seated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid - A/T >
Component Information > Specifications > Page 10241
Important: Inspecting transaxle fluid level when not at normal temperature can give an incorrect
measurement. The transaxle fluid expands when warm.
9. Remove the indicator and inspect the level and the condition of the oil on the indicator:
* Transmission fluid level at normal operating temperature (1)
* Transmission fluid level if cold (2)
10. If the fluid level is incorrect inspect for the following conditions:
* Fluid below level, inspect for a leak. Refer to Fluid Leak Diagnosis or Automatic Transmission
Fluid Leaks. See: Testing and Inspection/Component Tests and General Diagnostics/Fluid Leak
Diagnosis
* Fluid above level, inspect for contamination of the fluid.
Important: The tranaxle uses T-IV fluid, GM P/N 88900925 (Canadian P/N 22689186). The fluid is
normally red in color. The oil may darken in color with more miles on a vehicle.
11. Inspect the condition of the fluid for the following conditions:
* Excessively dirty with particles in the fluid If there are no driveablity concerns, replace the fluid. Refer to Transaxle Fluid Replacement.
- If driveablity concerns are present disassemble and inspect for a cause.
* Burnt smell Inspect for the correct fluid.
- Inspect for conditions that may of cause overheating of the transmission fluid.
- If there are no driveablity concerns, replace the fluid. Refer to Transaxle Fluid Replacement.
- If driveablity concerns are present disassemble and inspect for cause.
- Inspect the transmission oil cooler system for functioning properly. Refer to Automatic
Transmission Oil Cooler Flushing and Flow Test. See: Testing and Inspection/Component Tests
and General Diagnostics/Automatic Transmission Oil Cooler Flushing and Flow Test
* Black in color Disassemble the transaxle and inspect for components that may have over heated.
- Inspect the transmission oil cooler system for functioning properly. Refer to Automatic
Transmission Oil Cooler Flushing and Flow Test. See: Testing and Inspection/Component Tests
and General Diagnostics/Automatic Transmission Oil Cooler Flushing and Flow Test
* Milky or white tint in color from coolant or water Inspect for failure of the transaxle oil cooler. Refer to Engine Coolant/Water in Transmission. See:
Testing and Inspection/Component Tests and General Diagnostics/Engine Coolant/Water in
Transmission
- Inspect for missing or improperly routed vent hose.
- Inspect for missing fill plug.
12. Install the fluid level indicator.
Notice: Refer to Fastener Notice in Service Precautions.
13. Install the fluid indicator bolt.
Tighten the fluid indicator bolt to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid - A/T >
Component Information > Specifications > Page 10242
Fluid - A/T: Service and Repair
Transaxle Fluid Replacement
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the drain plug and drain fluid.
Allow at least 5 minutes for the fluid to drain completely. 3. Remove the gasket from the drain plug
and discard.
Installation Procedure
1. Install the new gasket on the drain plug.
Notice: Refer to Component Fastener Tightening Notice.
2. Install the drain plug.
Tighten the drain plug to 40 N.m (30 lb ft).
3. Make sure vehicle is level. 4. Remove the fluid level indicator located behind the front transaxle
mount.
Notice: Do not remove the 3rd gear anchor band bolt located on top of the transmission for
checking fluid or adding fluid. Removing the bolt will dislocate internal components and require the
transmission to be removed from the vehicle and disassembled for repair.
Important: Dexron(R)III automatic transmission fluid is not compatible with this transaxle. If
Dexron(R)III ATF is used, transaxle failure will result. Refer to Sealers, Adhesives, and Lubricants.
5. Add approximately 3.1 L (3.3 Qt) of GM T-IV fluid to the transaxle, using the fluid level indicator
location.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid - A/T >
Component Information > Specifications > Page 10243
Important: If the check is necessary at a low oil temperature of 30-40°C (86-104°F), perform check
using the COLD range on the level gage. However, the fluid must be re-checked at the proper fluid
temperature.
6. Start engine and operate vehicle until transaxle fluid temperature reaches 60-70°C (140-158°F).
7. Apply parking brake. 8. Depress brake pedal and move shift lever slowly through all gear ranges
from park (P) to low (L), pausing for about 3 seconds in each range.
Return shift lever to park (P) range at idle condition.
9. Pull level gauge out again and check if fluid level is within the HOT range.
10. If fluid is not within the correct level, adjust accordingly:
1. If fluid is below the HOT range, add enough to bring it up to the correct level. 2. If fluid is above
HOT range, drain excess fluid.
11. Install the fluid level indicator.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid Line/Hose, A/T >
Component Information > Technical Service Bulletins > A/T - Revised Converter Check Valve/Cooler Line Fitting
Fluid Line/Hose: Technical Service Bulletins A/T - Revised Converter Check Valve/Cooler Line
Fitting
INFORMATION
Bulletin No.: 04-07-30-017B
Date: November 25, 2008
Subject: Information on 4T65-E MN7, M15, M76, MN3 Automatic Transmission Case, Cooler
Fitting and Torque Converter Drain Back Check Ball Change
Models: 2008 and Prior GM Passenger Cars and Light Duty Trucks
with one of the HYDRA-MATIC(R) Automatic Transmissions shown above.
Supercede:
This bulletin is being revised to update the Parts Information. Please discard Corporate Bulletin
Number 04-07-30-017A (Section 07 - Transmission/Transaxle).
Effective with Julian date 4019 (January 19, 2004), the 4T65E transaxle cases and cooler fittings
have changed and are not interchangeable with past models. The technician may find that when
replacing the inlet or outlet transmission cooler lines, the new lines cannot be connected to the
transmission.
A change to the transmission cooler line fittings was implemented in production on February 1,
2004. The cooler line fittings were changed to a design with a longer lead in pilot (1). The cooler
line fittings with the longer lead in pilot will not fit on models built before February 1, 2004.
The longer lead in pilot fittings (1) (9/16-18 UNF) have replaced the shorter lead in pilot fittings (2)
(3/8-18 NPSF w/check ball & 1/4-18 NPSF).
If the transmission cooler lines will not connect, then replace them with the following cooler line
fittings as appropriate with the older, shorter lead in pilot design:
^ For vehicles built prior to February 1, 2004, use Transmission Fluid Cooler Inlet Hose, P/N
20793004.
^ For vehicles built after February 1, 2004, use Transmission Fluid Cooler Inlet Hose, second
design P/N 15264588.
^ For vehicles built prior to February 1, 2004, use Transmission Fluid Cooler Outlet Hose, P/N
20793005.
^ For vehicles built after February 1, 2004, use Transmission Fluid Cooler Outlet Hose, second
design P/N 15264589.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid Line/Hose, A/T >
Component Information > Technical Service Bulletins > A/T - Revised Converter Check Valve/Cooler Line Fitting > Page
10248
The torque specification has changed for the fittings to case. The torque has changed from 38 Nm
(28 lb ft) to 32 Nm (23 lb ft).
Tighten
Tighten the new cooler fittings to 32 Nm (23 lb ft).
The converter drain back check ball (420C) has been removed from the cooler line fitting and is
now located in the channel plate.
If you get a concern of no movement in the morning or after sitting for several hours, the cooler
check ball should be inspected.
The best way to determine where the check ball is located is to look at the cooler line fittings. The
old fittings are different sizes (3/8-18 NPSF & 1/4-18 NPSF) and would contain the cooler check
ball. The new fittings are the same size as each other (9/16-18 UNF) and do not have a cooler
check ball.
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid Line/Hose, A/T >
Component Information > Service and Repair > Oil Cooler Line Replacement
Fluid Line/Hose: Service and Repair Oil Cooler Line Replacement
Oil Cooler Line Replacement
Removal Procedure
Caution: Ensure that the vehicle is properly supported and squarely positioned. To help avoid
personal injury when a vehicle is on a hoist, provide additional support for the vehicle on the
opposite end from which the components are being removed.
1. Position the vehicle on a hoist and raise the hood. 2. Place a drain pan or suitable container
under the vehicle.
3. Disconnect the upper transaxle oil cooler line from the radiator. 4. Raise the vehicle. Refer to
Vehicle Lifting. 5. Disconnect the lower transaxle oil cooler line.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid Line/Hose, A/T >
Component Information > Service and Repair > Oil Cooler Line Replacement > Page 10251
6. Disengage the transaxle cooler lines from the fan shroud.
7. Remove the transaxle cooler line assembly nut (2) from the transaxle. 8. Remove the transaxle
cooler lines (1) from the vehicle. 9. Replace the transaxle oil cooler pipe seals.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid Line/Hose, A/T >
Component Information > Service and Repair > Oil Cooler Line Replacement > Page 10252
1. Install the transaxle oil cooler lines into the vehicle. 2. Install the transaxle oil cooler line
assembly (1) to the transaxle.
Notice: Refer to Fastener Notice.
3. Install the transaxle oil cooler line assembly nut (2).
Tighten the transaxle oil cooler lines to 9 N.m (80 lb in).
4. Connect the lower transaxle oil cooler line to the radiator.
5. Engage the transaxle oil cooler lines with the fan shroud by snapping in place. 6. Lower the
vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid Line/Hose, A/T >
Component Information > Service and Repair > Oil Cooler Line Replacement > Page 10253
7. Connect the upper transaxle oil cooler line to the radiator.
Important: DEXRON(R) VI automatic transmission fluid is not compatible with this transaxle. If
DEXRON(R) VI ATF is used, transaxle failure will result. This transaxle uses GM T-IV fluid P/N
88900925.
8. Add fluid to the transaxle. Refer to the Transmission Fluid Checking. See: Fluid - A/T/Testing
and Inspection 9. Start the engine a check for leaks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid Line/Hose, A/T >
Component Information > Service and Repair > Oil Cooler Line Replacement > Page 10254
Fluid Line/Hose: Service and Repair Fluid Cooler Pipe Seal Replacement
Fluid Cooler Pipe Seal Replacement
Tools Required
* J 41239-1A Cooler Line Seal Installer
* J 45201 Cooler Line Seal Remover
Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
Caution: Ensure that the vehicle is properly supported and squarely positioned. To help avoid
personal injury when a vehicle is on a hoist, provide additional support for the vehicle on the
opposite end from which the components are being removed.
2. Place a drain pan or suitable container under the vehicle.
3. Remove the transaxle oil cooler line assembly nut from the transaxle. 4. Disconnect the
transaxle oil cooler lines from the vehicle.
Important: Ensure that the J 45201 is fully seated into the transaxle seal bore.
5. Insert the collet piece (2) of the J 45201 into the cooler line seal. 6. Insert the forcing screw piece
(1) of the J 45201 into the collet (2). 7. Tighten the forcing screw (1) until snug.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid Line/Hose, A/T >
Component Information > Service and Repair > Oil Cooler Line Replacement > Page 10255
8. Thread the collar piece (1) of the J 45201 onto the collet (3) until snug.
9. Turn the collar clockwise in order to remove the cooler line seal (87).
10. Discard the seal (87). 11. Clean the case bores for the cooler line seals.
Installation Procedure
1. Insert a new transaxle cooler line seal into the case bore.
2. Remove the nub from the J 41239-1A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid Line/Hose, A/T >
Component Information > Service and Repair > Oil Cooler Line Replacement > Page 10256
3. Install the nub of the J 41239-1A on the transaxle cooler line seal. 4. Tap the new transaxle
cooler line seal into the case bore.
5. Install the transaxle oil cooler line assembly to the transaxle.
Notice: Refer to Fastener Notice.
6. Install the transaxle oil cooler line assembly nut.
Tighten the transaxle cooler line retaining nut to 9 N.m (80 lb in).
7. Lower the vehicle.
Important: DEXRON(R) VI automatic transmission fluid is not compatible with this transaxle. If
DEXRON(R) VI ATF is used, transaxle failure will result. This transaxle uses GM T-IV fluid P/N
88900925.
8. Add fluid to the transaxle. Refer to Transmission Fluid Checking procedure located in this
service data. See: Fluid - A/T/Testing and Inspection 9. Start the engine and check for leaks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Fluid Pan, A/T >
Component Information > Specifications
Fluid Pan: Specifications
Control valve body cover to Transmission Case Assembly
........................................................................................ Tighten the bolts to 13 N.m (10 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Lamps and Indicators A/T > Shift Indicator > Component Information > Description and Operation
Shift Indicator: Description and Operation
Shift Indicator Description and Operation
The shift indicator, located in the console, displays the selected gear position. The body control
module (BCM) controls the LEDs in the PRNDL display of the shift indicator through 4 control
circuits. The parameters of the 4 control circuits to the shift indicator are bits A, B, C, and parity.
These outputs are available for display on the scan tool. The BCM has 8 DTCs for these 4 control
circuits. These DTCs diagnose a short or an open for each circuit. The BCM receives selected gear
position information from the transmission control module (TCM) via serial data. The TCM receives
the gear position through four inputs from the park/neutral position switch assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Output Shaft, A/T >
Component Information > Technical Service Bulletins > A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise
Output Shaft: Technical Service Bulletins A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise
INFORMATION
Bulletin No.: 01-07-30-042F
Date: February 05, 2010
Subject: Information on 2-3 Upshift or 3-2 Downshift Clunk Noise
Models:
2010 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2, H3
2005-2009 Saab 9-7X with 4L60-E, 4L65-E or 4L70-E Automatic Transmission (RPOs M30, M32,
M70)
Supercede: This bulletin is being revised to add the 2010 model year and 4L70E transmission.
Please discard Corporate Bulletin Number 01-07-30-042E (Section 07 - Transmission/Transaxle).
Important For 2005 model year fullsize utilities and pickups, refer to Corporate Bulletin
05-07-30-012.
Some vehicles may exhibit a clunk noise that can be heard on a 2-3 upshift or a 3-2 downshift.
During a 2-3 upshift, the 2-4 band is released and the 3-4 clutch is applied. The timing of this shift
can cause a momentary torque reversal of the output shaft that results in a clunk noise. This same
torque reversal can also occur on a 3-2 downshift when the 3-4 clutch is released and the 2-4 band
applied. This condition may be worse on a 4-wheel drive vehicle due to the additional tolerances in
the transfer case.
This is a normal condition. No repairs should be attempted.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Parking Pawl, A/T >
Component Information > Technical Service Bulletins > A/T - Grinding/Growling Noise in Park on Incline
Parking Pawl: Technical Service Bulletins A/T - Grinding/Growling Noise in Park on Incline
INFORMATION
Bulletin No.: 99-07-30-030F
Date: May 01, 2008
Subject: Grinding and/or Growling Noise in Park on Incline
Models: 2009 and Prior Passenger Cars and Light Duty Trucks (Including Saturn)
with Hydra-Matic Front Wheel Drive (FWD) Automatic Transmissions
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
99-07-30-030E (Section 07 - Transmission/Transaxle).
Service Information
Owners of some vehicles equipped with Hydra-Matic front wheel drive transaxles may comment on
a grinding and/or growling noise that is noticeable when standing in PARK on a hill or slope with
the engine running and the parking brake not applied. Under these conditions, the weight of the
vehicle puts a load on the parking pawl which can create a "ground-out" path through the drive
axles, front struts, springs and spring towers. Normal engine noise can be transmitted to the
passenger compartment through the "ground-out" path.
Owners concerned about this condition should be advised to apply the parking brake prior to
shifting into PARK. This is the recommended procedure described in the Owners Manual. Applying
the parking brake first will put the load of the vehicle on the rear brakes rather than on the parking
pawl.
Refer the owner to the appropriate Owner Manual for additional details and instructions.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Pressure Regulating
Solenoid, A/T > Component Information > Locations
Pressure Regulating Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
340 - Shift Pressure Control Solenoid Valve Assembly (SLS) 316 - Line Pressure Control Solenoid
Valve Assembly (SLT)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Pressure Regulating
Solenoid, A/T > Component Information > Diagrams > Shift Pressure Control Solenoid (SLS)
Pressure Regulating Solenoid: Diagrams Shift Pressure Control Solenoid (SLS)
Shift Pressure Control Solenoid (SLS)
Shift Pressure Control Solenoid (SLS)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Pressure Regulating
Solenoid, A/T > Component Information > Diagrams > Shift Pressure Control Solenoid (SLS) > Page 10277
Pressure Regulating Solenoid: Diagrams Line Pressure Control Solenoid (SLT)
Line Pressure Control Solenoid (SLT)
Line Pressure Control Solenoid (SLT)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Pressure Regulating
Solenoid, A/T > Component Information > Diagrams > Shift Pressure Control Solenoid (SLS) > Page 10278
Pressure Regulating Solenoid: Diagrams Torque Converter Clutch Pressure Control Solenoid
Valve
Torque Converter Clutch Pressure Control Solenoid Valve
Torque Converter Clutch Pressure Control Solenoid Valve
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Relays and Modules A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Customer Interest for Control Module:
> 07-07-30-014 > May > 07 > A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Control Module: Customer Interest A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Relays and Modules A/T > Control Module, A/T > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Control Module: > 07-07-30-014 > May > 07 > A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Control Module: All Technical Service Bulletins A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Relays and Modules A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10293
Control Module: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor 62 - Automatic Transmission Output
Speed Sensor 73 - Automatic Transmission Input Speed Sensor 75 - Transmission Control Module
(TCM) 300 - 1-2, 2-3, Reverse, Shift Solenoid Valve Assembly (S3) 303 - 3-4, 4-5 Shift Solenoid
Valve Assembly (S4) 305 - Reverse Shift Valve Solenoid (S5) 308 - 2-3, 3-4 Shift Solenoid Valve
Assembly (S2) 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1) 316 - Line Pressure Control
Solenoid Valve Assembly (SLT) 339 - TCC Lock Up Pressure Control Solenoid Valve Assembly
(SLU)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Relays and Modules A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10294
340 - Shift Pressure Control Solenoid Valve Assembly (SLS)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Relays and Modules A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10295
Control Module: Diagrams
Transmission Control Module
Transmission Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Relays and Modules A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10296
Control Module: Service and Repair
TRANSMISSION CONTROL MODULE REPLACEMENT
Removal Procedure
1. Remove the battery tray. See: Starting and Charging/Battery/Battery Tray/Service and
Repair/Battery Tray Replacement
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
transmission control module (TCM).
2. Apply the parking brake and place control shift lever in neutral (N).
3. Remove the manual shaft detent lever (2). See: Sensors and Switches - A/T/Transmission
Position Switch/Sensor/Service and Repair/Transaxle
Range Switch Replacement
4. Disconnect the electrical connectors from the TCM. 5. Remove the TCM bolts (3). 6. Remove
the TCM (4) by sliding off of the manual shaft.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Relays and Modules A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10297
1. Using an adjustable wrench on the manual shaft detent lever (710), turn the shaft clockwise until
it stops. 2. Turn the shaft counterclockwise one position to the neutral location. To verify turning the
shaft in the correct direction, on the manual shaft detent
lever (710) the reverse position is larger and more resistance can be felt.
3. Inspect the condition of the connector pins on the wiring harness assembly (33) for foreign
material, bent pins, or broken pins. 4. Ensure the TCM seal (72) is installed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Relays and Modules A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10298
5. Turn the slot in the TCM to align the 2 marks. Do not turn more than 60 degrees.
6. Install the TCM (4) over the manual shaft.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct
part number for that application. Fasteners requiring replacement or fasteners requiring the use of
thread locking compound or sealant are identified in the service procedure. Do not use paints,
lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These
coatings affect fastener torque and joint clamping force and may damage the fastener. Use the
correct tightening sequence and specifications when installing fasteners in order to avoid damage
to parts and systems.
7. Install the bolts (3).
Tighten the bolts to 25 Nm (18 lb ft).
8. Connect the electrical connectors (3, 5) to the TCM. 9. Install the manual shaft detent lever.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Relays and Modules A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10299
10. Install the battery tray.
Important: DTC P0602 is set with all new service transaxle control modules. When the transaxle
control module is reprogrammed with the correct software and calibrations, DTC P0602 will be
erased.
11. Reprogram the TCM with the correct calibration. See: Testing and Inspection/Programming and
Relearning 12. Perform the transmission adaptive learn procedure. See: Testing and
Inspection/Programming and Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Seals and Gaskets, A/T
> System Information > Technical Service Bulletins > Customer Interest for Seals and Gaskets: > 01-07-30-032E > Sep >
08 > A/T - 4T65E Fluid Leaking From A/T Vent
Seals and Gaskets: Customer Interest A/T - 4T65E Fluid Leaking From A/T Vent
TECHNICAL
Bulletin No.: 01-07-30-032E
Date: September 29, 2008
Subject: Transmission Oil Leaking From Transmission Vent (Replace Transmission Case Cover
(Channel Plate) Gasket)
Models: 1997-2009 GM Passenger Cars and Light Duty Trucks (including Saturn)
with Hydra-Matic 4T65-E Automatic Transmission (RPOs MN3, MN7, M15, M76)
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 01-07-30-032D (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak.
Cause
This condition may be caused by an improperly torqued channel plate gasket.
Correction
To correct this condition, replace the case cover (channel plate) gaskets (429 and 430). Refer to
Unit Repair publication in SI of the appropriate vehicle being serviced.
Visual inspection of the upper gasket (1) will reveal damage at the referenced area.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Seals and Gaskets, A/T
> System Information > Technical Service Bulletins > Customer Interest for Seals and Gaskets: > 01-07-30-032E > Sep >
08 > A/T - 4T65E Fluid Leaking From A/T Vent > Page 10308
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Seals and Gaskets, A/T
> System Information > Technical Service Bulletins > All Technical Service Bulletins for Seals and Gaskets: >
01-07-30-032E > Sep > 08 > A/T - 4T65E Fluid Leaking From A/T Vent
Seals and Gaskets: All Technical Service Bulletins A/T - 4T65E Fluid Leaking From A/T Vent
TECHNICAL
Bulletin No.: 01-07-30-032E
Date: September 29, 2008
Subject: Transmission Oil Leaking From Transmission Vent (Replace Transmission Case Cover
(Channel Plate) Gasket)
Models: 1997-2009 GM Passenger Cars and Light Duty Trucks (including Saturn)
with Hydra-Matic 4T65-E Automatic Transmission (RPOs MN3, MN7, M15, M76)
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 01-07-30-032D (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak.
Cause
This condition may be caused by an improperly torqued channel plate gasket.
Correction
To correct this condition, replace the case cover (channel plate) gaskets (429 and 430). Refer to
Unit Repair publication in SI of the appropriate vehicle being serviced.
Visual inspection of the upper gasket (1) will reveal damage at the referenced area.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Seals and Gaskets, A/T
> System Information > Technical Service Bulletins > All Technical Service Bulletins for Seals and Gaskets: >
01-07-30-032E > Sep > 08 > A/T - 4T65E Fluid Leaking From A/T Vent > Page 10314
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Seals and Gaskets, A/T
> System Information > Technical Service Bulletins > All Technical Service Bulletins for Seals and Gaskets: > Page 10315
Seals and Gaskets: By Symptom
Technical Service Bulletin # 01-07-30-032E Date: 080929
A/T - 4T65E Fluid Leaking From A/T Vent
TECHNICAL
Bulletin No.: 01-07-30-032E
Date: September 29, 2008
Subject: Transmission Oil Leaking From Transmission Vent (Replace Transmission Case Cover
(Channel Plate) Gasket)
Models: 1997-2009 GM Passenger Cars and Light Duty Trucks (including Saturn)
with Hydra-Matic 4T65-E Automatic Transmission (RPOs MN3, MN7, M15, M76)
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 01-07-30-032D (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak.
Cause
This condition may be caused by an improperly torqued channel plate gasket.
Correction
To correct this condition, replace the case cover (channel plate) gaskets (429 and 430). Refer to
Unit Repair publication in SI of the appropriate vehicle being serviced.
Visual inspection of the upper gasket (1) will reveal damage at the referenced area.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Seals and Gaskets, A/T
> System Information > Technical Service Bulletins > All Technical Service Bulletins for Seals and Gaskets: > Page 10316
For vehicles repaired under warranty, use the table.
Disclaimer
Technical Service Bulletin # 01-07-30-032E Date: 080929
A/T - 4T65E Fluid Leaking From A/T Vent
TECHNICAL
Bulletin No.: 01-07-30-032E
Date: September 29, 2008
Subject: Transmission Oil Leaking From Transmission Vent (Replace Transmission Case Cover
(Channel Plate) Gasket)
Models: 1997-2009 GM Passenger Cars and Light Duty Trucks (including Saturn)
with Hydra-Matic 4T65-E Automatic Transmission (RPOs MN3, MN7, M15, M76)
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 01-07-30-032D (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak.
Cause
This condition may be caused by an improperly torqued channel plate gasket.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Seals and Gaskets, A/T
> System Information > Technical Service Bulletins > All Technical Service Bulletins for Seals and Gaskets: > Page 10317
To correct this condition, replace the case cover (channel plate) gaskets (429 and 430). Refer to
Unit Repair publication in SI of the appropriate vehicle being serviced.
Visual inspection of the upper gasket (1) will reveal damage at the referenced area.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Seals and Gaskets, A/T
> System Information > Service and Repair > Drive Axle Shaft Seal Replacement - Left
Seals and Gaskets: Service and Repair Drive Axle Shaft Seal Replacement - Left
Drive Axle Shaft Seal Replacement (Left)
Tools Required
* J 44809 Output Shaft Seal Installer
* J 45000 Seal Remover
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Place a drain pan under the transaxle
to catch any spilled transaxle fluid. 3. Remove the left front axle shaft.
4. Using the J 45000, remove the axle seal from the transaxle and discard. 5. Clean the seal bore
in the transaxle housing.
Installation Procedure
1. Using the J 44809, install the left axle seal into the transaxle. 2. Install the left front axle shaft. 3.
Lower the vehicle.
Important: Dextron(R)III automatic transmission fluid is not compatible with this transaxle. If
Dextron(R)III ATF is used, transaxle failure will result. This transaxle uses GM T-IV fluid GM P/N
88900925.
4. Inspect the transaxle fluid level.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Seals and Gaskets, A/T
> System Information > Service and Repair > Drive Axle Shaft Seal Replacement - Left > Page 10320
Seals and Gaskets: Service and Repair Drive Axle Shaft Seal Replacement (Right)
Drive Axle Shaft Seal Replacement (Right)
Tools Required
* J 45000 Seal Remover
* J 45187 Differential Output Shaft Oil Seal Installer
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Place a drain pan under the transaxle
to catch any spilled transaxle fluid. 3. Remove the right front wheel drive shaft. 4. Vehicles
equipped with all wheel drive (AWD), remove the transfer case. 5. If equipped with an axle seal
dust cover, discard it and do not replace it.
6. Using the J 45000 remove the right drive axle seal from the transaxle. 7. Clean the seal bore in
the transaxle housing.
Installation Procedure
1. Using the J 45187, install the right drive axle seal onto the transaxle. 2. Vehicles equipped with
AWD, install the transfer case. 3. Install the right front wheel drive shaft. 4. Lower the vehicle.
Important: Dextron(R)III automatic transmission fluid is not compatible with this transaxle. If
Dextron(R)III ATF is used, transaxle
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Seals and Gaskets, A/T
> System Information > Service and Repair > Drive Axle Shaft Seal Replacement - Left > Page 10321
failure will result. This transaxle uses GM T-IV fluid GM P/N 88900925.
5. Inspect the transaxle fluid level.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Position Switch/Sensor, A/T > Component Information > Locations
Transmission Position Switch/Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
75 - Park/Neutral Position Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Position Switch/Sensor, A/T > Component Information > Locations > Page 10326
Transmission Position Switch/Sensor: Adjustments
Transaxle Range Switch Adjustment
Tools Required
* J 36346 Fascia Retainer Remover
* J 45404 Transmission Indicator Alignment Tool
1. Remove the battery tray. 2. Shift the transaxle into neutral (N) position.
3. Using the J 36346, remove the shift control cable from the transaxle range switch lever.
4. Loosen the transaxle range switch bolt (2) and stud (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Position Switch/Sensor, A/T > Component Information > Locations > Page 10327
5. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
on the J 45404.
Notice: Refer to Fastener Notice.
6. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
7. Remove the J 45404 from the manual shaft. 8. Install the shift control cable to the transaxle
range switch lever. 9. Install the battery tray.
10. After adjusting the transaxle range switch, verify the engine only starts in park (P) or neutral
(N). If the engine starts in any other position, readjust
the switch.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch
Lever Replacement
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Lever
Replacement
Transaxle Range Switch Lever Replacement
Tools Required
J 36346 Fascia Retainer Remover
Removal Procedure
1. Remove the battery tray.
2. Using the J 36346, disconnect the shift control cable from the transaxle range switch lever.
3. Remove the transaxle range switch lever nut and lever.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch
Lever Replacement > Page 10330
Notice: Refer to Fastener Notice.
1. Install the transaxle range switch lever and lever nut.
Tighten the nut to 16 N.m (12 lb ft).
2. Install the shift control cable end fitting onto the ball stud of the transaxle range switch lever. An
audible snap will be heard when properly
installed.
3. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch
Lever Replacement > Page 10331
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Replacement
Transaxle Range Switch Replacement
Tools Required
J 45404 Transmission Indicator Alignment Tool
Removal Procedure
1. Remove the battery tray.
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
switch.
2. Apply the parking brake and place control shift lever in neutral (N). 3. Remove the transaxle
range switch lever.
4. Disconnect the electrical connectors (3, 5) from the transaxle range switch.
5. Using a screwdriver, bend the lockwasher tabs down away from the manual shaft nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch
Lever Replacement > Page 10332
6. Remove the nut, lock tab washer, and flat washer.
7. Remove the transaxle range switch bolt (2), stud (1), and flat washers. 8. Remove the transaxle
range switch (3).
Installation Procedure
1. Install the transaxle range switch (3) to the manual shaft lever. 2. Install the washer stud (1) and
the bolt (2). Hand tighten ONLY at this time.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Lever Replacement > Page 10333
Notice: Refer to Fastener Notice.
3. Install the flat washer, lock tab washer, and nut.
Tighten the nut to 7 N.m (62 lb in).
4. Ensure the manual shaft is in neutral (N) position.
5. Bend the lock washer tabs up to secure the nut.
6. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch
Lever Replacement > Page 10334
on the J 45404.
7. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
8. Remove the J 45404 from the manual shaft.
9. Connect the electrical connectors (3, 5) to the transaxle range switch.
10. Install the transaxle range switch lever. 11. Install the battery tray. 12. After installing and
adjusting the switch, verify the engine only starts in park (P) or neutral (N). If the engine starts in
any other position, readjust
the switch. Refer to Transaxle Range Switch Adjustment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Speed Sensor, A/T > Component Information > Locations
Transmission Speed Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
62 - Automatic Transmission Output Speed Sensor 73 - Automatic Transmission Input Speed
Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Speed Sensor, A/T > Component Information > Diagrams > Input Shaft Speed (ISS) Sensor Connector,
Wiring Harness Side
Transmission Speed Sensor: Diagrams Input Shaft Speed (ISS) Sensor Connector, Wiring
Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Speed Sensor, A/T > Component Information > Diagrams > Input Shaft Speed (ISS) Sensor Connector,
Wiring Harness Side > Page 10340
Transmission Speed Sensor: Diagrams Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input Speed Sensor Replacement
Transmission Speed Sensor: Service and Repair Input Speed Sensor Replacement
Input Speed Sensor Replacement
Removal Procedure
1. Remove the battery tray.
2. Disconnect the wiring harness (4) from the input speed sensor.
3. Remove the input speed sensor bolt. 4. Remove the input speed sensor. 5. Remove the input
speed sensor O-ring. Discard the O-ring.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input Speed Sensor Replacement
> Page 10343
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new input speed sensor
O-ring. 2. Install the new input speed sensor O-ring onto the input speed sensor. 3. Install the input
speed sensor to the transaxle.
Notice: Refer to Fastener Notice.
4. Install the input speed sensor bolt.
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (4) to the input speed sensor. 6. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input Speed Sensor Replacement
> Page 10344
Transmission Speed Sensor: Service and Repair Output Speed Sensor Replacement
Output Speed Sensor Replacement
Removal Procedure
1. Disconnect the wiring harness (2) from the output shaft speed sensor.
2. Remove the output speed sensor bolt (3). 3. Remove the output shaft speed sensor (2) and the
O-ring (1).
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input Speed Sensor Replacement
> Page 10345
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new output speed sensor
O-ring (1). 2. Install the new output speed sensor O-ring (1) onto the output speed sensor (2). 3.
Install the output speed sensor (2) into the transmission case assembly.
Notice: Refer to Fastener Notice.
4. Install the output speed sensor bolt (3).
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (2) to the output shaft speed sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Temperature Sensor/Switch, A/T > Component Information > Locations
Transmission Temperature Sensor/Switch: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Sensors and Switches A/T > Transmission Temperature Sensor/Switch, A/T > Component Information > Locations > Page 10349
Transmission Temperature Sensor/Switch: Diagrams
Automatic Transmission Fluid Temperature (TFT) Sensor
Automatic Transmission Fluid Temperature (TFT) Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Interlock, A/T >
Shift Interlock Solenoid > Component Information > Locations
Shift Interlock Solenoid: Locations
Shift Lock Control Component Views
Below the Shifter
Below The Shifter
1 - I/P Trim 2 - Console Arm Rest 3 - Cigar Lighter 4 - Shift Lock Control Solenoid
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Interlock, A/T >
Shift Interlock Solenoid > Component Information > Locations > Page 10354
Shift Interlock Solenoid: Service and Repair
Shift Lock Solenoid/Switch Assembly Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Locations
Shift Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
300 - 1-2, 2-3, Reverse, Shift Solenoid Valve Assembly (S3) 303 - 3-4, 4-5 Shift Solenoid Valve
Assembly (S4) 305 - Reverse Shift Valve Solenoid (S5) 308 - 2-3, 3-4 Shift Solenoid Valve
Assembly (S2) 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions
Shift Solenoid: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10360
Electrical Symbols Part 2
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Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10361
Electrical Symbols Part 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10362
Electrical Symbols Part 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10363
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10364
Electrical Symbols Part 6
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Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10365
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10366
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10367
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10368
Shift Solenoid: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Component Information > Diagrams > Diagram Information and Instructions > Page 10369
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10370
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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Component Information > Diagrams > Diagram Information and Instructions > Page 10371
resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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Component Information > Diagrams > Diagram Information and Instructions > Page 10372
electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10373
cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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Component Information > Diagrams > Diagram Information and Instructions > Page 10380
- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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Component Information > Diagrams > Diagram Information and Instructions > Page 10390
BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10391
9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10392
1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10393
Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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Component Information > Diagrams > Diagram Information and Instructions > Page 10395
View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10396
View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10397
6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10399
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10402
3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10406
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10409
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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Component Information > Diagrams > Diagram Information and Instructions > Page 10419
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Component Information > Diagrams > Diagram Information and Instructions > Page 10420
2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10421
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Component Information > Diagrams > Diagram Information and Instructions > Page 10424
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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Component Information > Diagrams > Diagram Information and Instructions > Page 10430
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10436
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10437
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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Component Information > Diagrams > Diagram Information and Instructions > Page 10439
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10441
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 10442
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10446
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10447
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10448
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10449
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10450
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10451
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10452
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10453
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10454
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10455
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10456
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10457
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10458
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10459
Shift Solenoid: Connector Views
Shift Solenoid 1
Shift Solenoid 1
Shift Solenoid 1
Shift Solenoid 2
Shift Solenoid 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10460
Shift Solenoid 2
Shift Solenoid 3
Shift Solenoid 3
Shift Solenoid 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10461
Shift Solenoid 4
Shift Solenoid 4
Shift Solenoid 4
Shift Solenoid 5
Shift Solenoid 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Solenoid, A/T >
Component Information > Diagrams > Diagram Information and Instructions > Page 10462
Shift Solenoid 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shifter A/T >
Component Information > Service and Repair > Automatic Transmission Control Indicator Replacement
Shifter A/T: Service and Repair Automatic Transmission Control Indicator Replacement
Automatic Transmission Control Indicator Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shifter A/T >
Component Information > Service and Repair > Automatic Transmission Control Indicator Replacement > Page 10467
Shifter A/T: Service and Repair Transmission Control Lever Knob Replacement
Transmission Control Lever Knob Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shifter A/T >
Component Information > Service and Repair > Automatic Transmission Control Indicator Replacement > Page 10468
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shifter A/T >
Component Information > Service and Repair > Automatic Transmission Control Indicator Replacement > Page 10469
Shifter A/T: Service and Repair Shift Control Replacement
Shift Control Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shifter A/T >
Component Information > Service and Repair > Automatic Transmission Control Indicator Replacement > Page 10470
Shifter A/T: Service and Repair Transmission Control Bracket Replacement
Transmission Control Bracket Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Adjustments
Shift Cable: Adjustments
Shift Control Cable Adjustment
Tools Required
J 36346 Fascia Retainer Remover
Adjustment Procedure
1. Apply the parking brake and ensure the vehicle is not running.
2. Ensure that the shift control assembly is in the park (P) position. 3. Pull back the white plastic
cover (1) on the center connector.
4. Pull up on the center tabs of the lock button (2).
Important: This step must be performed correctly to avoid a misadjusted cable. Do not grasp the
shift cable end (2) during this procedure.
5. Release the shift cable end (2) and allow the blue spring to tension/adjust the shift cable system.
6. Pull the white cover (3) on the shift cable end (1) back.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Adjustments > Page 10475
7. Push the natural colored lock button (2) down to engage the locking teeth on the shift cable end
(1).
8. Release the white cover (1).
9. Verify the white cover (1) conceals the natural colored lock (2).
10. If the white cover (1) does not conceal the natural colored lock (2), the shift cable must be
readjusted. 11. Test the transmission for proper shift operation. 12. If all of the gear positions
cannot be achieved, the shift cable must be readjusted.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement
Shift Cable: Service and Repair Shift Control Cable Replacement
Shift Control Cable Replacement
Tools Required
J 36346 Fascia Retainer Remover
Important: The shift control cable can be disassembled and removed as two independent sections
when removal of the complete cable is not necessary, or the cable can remain together and be
removed as one piece not requiring disassembly of the cable.
Disassembling Cable
1. Set the parking brake. 2. Disable the supplemental inflatable restraint (SIR) system. Refer to SIR
Disabling and Enabling. 3. Ensure that the shift control range select lever is in the park (P) position.
4. Remove the shift control cable retainer (2) from the cowl stud (1) near the brake master cylinder.
5. Pull back the spring loaded cover (2) to expose the cable adjustment lock (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement > Page 10478
6. Lift the cable adjustment lock (3) up to unlock both halves of the shift cable (1, 4).
7. Rotate the shift cable to expose the retaining clip (5).
It may be necessary to pull the transaxle end of the shift cable (4) out of the shift control end of the
shift cable (1) to fully expose the retaining clip (5).
8. Remove the retaining clip (2) from the shift control cable (3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement > Page 10479
9. Separate the shift control end of the cable (1) from the transaxle end of the cable (2).
Cable Removal - Shift Control End
Refer to the following steps to remove the shift control end (2) of the shift control cable.
1. Remove the shift control lever knob. 2. Remove the center trim bezel. 3. Remove the console
trim plate. 4. Remove the right side console trim panel. 5. Ensure that the shift control range select
lever is in the park (P) position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement > Page 10480
6. Using the J 36346, disconnect the shift control cable from the shift control range select lever pin.
7. Depress the shift control cable retainer clip tabs and remove the cable from the shift control.
8. Remove the shift control cable grommet from the cowl.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement > Page 10481
9. Remove the shift control cable retainer (1) from the cowl stud (2) near the generator.
10. Remove the shift control cable retaining clips (2) from the cowl (1). 11. Note the shift control
cable routing and remove the shift control cable from the vehicle.
Cable Removal - Transaxle End
Refer to the following steps to remove the transaxle end (1) of the shift control cable.
1. Using the J 36346, disconnect the shift control cable (2) from the transaxle range switch lever
(3).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement > Page 10482
2. Depress the shift control cable retainer clip tabs and remove the shift control cable (2) from the
shift control cable bracket (1). 3. Note the shift control cable routing and remove the shift control
cable from the vehicle.
Cable Installation - Transaxle End
Refer to the following steps to install the transaxle end (1) of the shift control cable.
Important: Ensure the shift control cable is routed exactly as originally positioned in the vehicle to
avoid coming into contact with potential hazards such as hot, sharp, and moving objects.
1. Install the shift control cable (2) to the shift control cable bracket (1). Ensure the shift control
cable retaining tabs fully engage the shift control
cable bracket.
2. Connect the shift control cable (2) to the transaxle range switch lever (3).
Cable Installation - Shift Control End
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement > Page 10483
Refer to the following steps to remove the shift control end (2) of the shift control cable.
Important: Ensure the shift control cable is routed exactly as originally positioned in the vehicle to
avoid coming into contact with potential hazards such as hot, sharp, and moving objects.
1. Secure the shift control cable grommet by pressing the cable into the pass-thru hole in the cowl.
2. Ensure that the shift control range select lever is in the park (P) position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement > Page 10484
3. Install the shift control cable to the shift control. 4. Install the shift control cable onto the shift
control range select lever pin. 5. Install the right side console trim panel. 6. Install the console trim
plate. 7. Install the center trim bezel. 8. Install the shift control lever knob.
9. Attach the shift control cable retainer (1) to the cowl stud (2) near the generator.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement > Page 10485
10. Install the shift control cable retaining clips (2) to the cowl (1).
Assembling Cable
1. Install the cable retaining clip (2). 2. Push the transaxle end of the shift control cable (4) into the
shift control end of the shift control cable (1) until the cable retaining clip (5) is fully
locked into the shift control cable groove (3).
3. Ensure that the shift control lever and the transaxle range select lever are both in the park (P)
position.
4. Ensure the transaxle cable end (4) is not being held and that the spring is allowed to tension the
cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement > Page 10486
5. Depress the cable adjustment lock (3) in order to lock both halves of the shift cable (1, 4).
6. Release the spring loaded cover (2) allowing it to cover the cable adjustment lock.
7. Install the shift control cable retainer (2) to the cowl stud (1) near the brake master cylinder. 8.
Adjust the shift control cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement > Page 10487
Shift Cable: Service and Repair Shift Control Cable Bracket Replacement
Shift Control Cable Bracket Replacement
Tools Required
J 36346 Fascia Retainer Remover
Removal Procedure
Notice: The control cable must be disconnected from the transaxle range switch lever prior to
disconnecting it from the control cable bracket. Otherwise damage to the manual shift shaft may
result, requiring transaxle disassembly.
1. Remove the battery tray. 2. Using the J 36346, disconnect the shift control cable from the
transaxle range switch lever. 3. Depress the shift control cable retainer clip tabs and remove the
cable from the shift control cable bracket.
4. Remove the shift control cable bracket bolts. 5. Remove the shift control cable bracket.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Shift Linkage, A/T >
Shift Cable, A/T > Component Information > Service and Repair > Shift Control Cable Replacement > Page 10488
1. Install the transaxle shift control bracket.
Notice: Refer to Fastener Notice.
2. Install the transaxle shift control bracket.
Tighten the bolts to 25 N.m (18 lb ft).
3. Secure the shift control cable to the bracket. An audible snap will be heard when properly
installed. 4. With the transaxle range switch lever in neutral (N), attach the shift control cable end
fitting onto the ball stud of the transaxle range switch lever.
An audible snap will be heard when the shift control cable is properly installed.
5. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter >
Component Information > Technical Service Bulletins > A/T - Torque Converter Replacement Information
Torque Converter: Technical Service Bulletins A/T - Torque Converter Replacement Information
INFORMATION
Bulletin No.: 01-07-30-010C
Date: May 12, 2008
Subject: Automatic Transmission/Transaxle Torque Converter Replacement
Models: 2009 and Prior GM Passenger Cars and Trucks 2009 and Prior HUMMER H2, H3 2009
and Prior Saturn Cars and Light Duty Trucks (Except VTi Equipped Vehicles (RPO M16 and M75)
2009 and Prior Saab 9-7X
with ALL Automatic Transmissions and Transaxles
Supercede:
This bulletin is being revised to add the 2007-2009 model years. Please discard Corporate Bulletin
Number 01-07-30-010B (Section 07 - Transmission/Transaxle).
The purpose of this bulletin is to help technicians determine when a torque converter should be
replaced. Below is a list of general guidelines to follow.
The converter should NOT be replaced if the following apply:
^ DTC P0742 - TCC stuck on is set. This code is almost always the result of a controls condition
(i.e. stuck TCC solenoid/valve). Experience has shown that this code rarely indicates a mechanical
concern within the torque converter.
^ The fluid has an odor or is discolored but no evidence of metal contamination.
^ Fine metal particles (traces of metal flakes/gray color to fluid ) are found in the converter. This is
not harmful to the torque converter.
^ The vehicle has been exposed to high mileage.
^ A small amount of wear appears on the hub where the oil pump drive gear mates to the converter
(RWD only). A certain amount of such wear is normal for both the hub and oil pump gear. Neither
the converter nor the front pump assembly should be replaced.
The torque converter should be replaced under any of the following conditions:
^ The vehicle has TCC shudder and/or no TCC apply. First complete all electrical and hydraulic
diagnosis and check for proper engine operation. The converter clutch may be damaged. Also the
converter bushing and/or internal 0-ring may be damaged.
^ Evidence of damage to the oil pump assembly pump shaft turbine shaft drive sprocket support
and bearing or metal chips/debris in the converter.
^ Metal chips/debris are found in the converter or when flushing the cooler and the cooler lines.
^ External leaks in the hub weld area lug weld or closure weld.
^ Converter pilot is broken damaged or fits poorly into the crankshaft.
^ The converter hub is scored or damaged.
^ The transmission oil is contaminated with engine coolant engine oil or water.
^ If excessive end play is found after measuring the converter for proper end play (refer to Service
Manual).
^ If metal chips/debris are found in the fluid filter or on the magnet and no internal parts in the unit
are worn or damaged. This indicates that the material came from the converter.
^ The converter has an unbalanced condition that results in a vibration that cannot be corrected by
following Converter Vibration Procedures.
^ Blue converter or dark circular ring between lugs. This condition will also require a complete
cleaning of the cooler and a check for adequate flow
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter >
Component Information > Technical Service Bulletins > A/T - Torque Converter Replacement Information > Page 10493
through the cooler.
^ Converter bearing noise determined by noise from the bell housing area in Drive or Reverse at
idle. The noise is gone in Neutral and Park.
^ If silicon from the viscous clutch is found in the lower pan (4T80-E ONLY).
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Check Valve > Component Information > Technical Service Bulletins > A/T - Revised Converter Check Valve/Cooler Line
Fitting
Torque Converter Check Valve: Technical Service Bulletins A/T - Revised Converter Check
Valve/Cooler Line Fitting
INFORMATION
Bulletin No.: 04-07-30-017B
Date: November 25, 2008
Subject: Information on 4T65-E MN7, M15, M76, MN3 Automatic Transmission Case, Cooler
Fitting and Torque Converter Drain Back Check Ball Change
Models: 2008 and Prior GM Passenger Cars and Light Duty Trucks
with one of the HYDRA-MATIC(R) Automatic Transmissions shown above.
Supercede:
This bulletin is being revised to update the Parts Information. Please discard Corporate Bulletin
Number 04-07-30-017A (Section 07 - Transmission/Transaxle).
Effective with Julian date 4019 (January 19, 2004), the 4T65E transaxle cases and cooler fittings
have changed and are not interchangeable with past models. The technician may find that when
replacing the inlet or outlet transmission cooler lines, the new lines cannot be connected to the
transmission.
A change to the transmission cooler line fittings was implemented in production on February 1,
2004. The cooler line fittings were changed to a design with a longer lead in pilot (1). The cooler
line fittings with the longer lead in pilot will not fit on models built before February 1, 2004.
The longer lead in pilot fittings (1) (9/16-18 UNF) have replaced the shorter lead in pilot fittings (2)
(3/8-18 NPSF w/check ball & 1/4-18 NPSF).
If the transmission cooler lines will not connect, then replace them with the following cooler line
fittings as appropriate with the older, shorter lead in pilot design:
^ For vehicles built prior to February 1, 2004, use Transmission Fluid Cooler Inlet Hose, P/N
20793004.
^ For vehicles built after February 1, 2004, use Transmission Fluid Cooler Inlet Hose, second
design P/N 15264588.
^ For vehicles built prior to February 1, 2004, use Transmission Fluid Cooler Outlet Hose, P/N
20793005.
^ For vehicles built after February 1, 2004, use Transmission Fluid Cooler Outlet Hose, second
design P/N 15264589.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Check Valve > Component Information > Technical Service Bulletins > A/T - Revised Converter Check Valve/Cooler Line
Fitting > Page 10498
The torque specification has changed for the fittings to case. The torque has changed from 38 Nm
(28 lb ft) to 32 Nm (23 lb ft).
Tighten
Tighten the new cooler fittings to 32 Nm (23 lb ft).
The converter drain back check ball (420C) has been removed from the cooler line fitting and is
now located in the channel plate.
If you get a concern of no movement in the morning or after sitting for several hours, the cooler
check ball should be inspected.
The best way to determine where the check ball is located is to look at the cooler line fittings. The
old fittings are different sizes (3/8-18 NPSF & 1/4-18 NPSF) and would contain the cooler check
ball. The new fittings are the same size as each other (9/16-18 UNF) and do not have a cooler
check ball.
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Locations
Torque Converter Clutch Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
339 - TCC Lock Up Pressure Control Solenoid Valve Assembly (SLU)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions
Torque Converter Clutch Solenoid: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10504
Electrical Symbols Part 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10505
Electrical Symbols Part 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10506
Electrical Symbols Part 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10507
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10508
Electrical Symbols Part 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10509
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10510
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10511
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10512
Torque Converter Clutch Solenoid: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10513
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10514
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10515
resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10516
electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10517
cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10518
1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10519
IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10520
Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10521
IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10522
Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10523
- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10527
View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10530
5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10531
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10532
4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10533
6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10534
BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10535
9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10536
1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10537
Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10538
Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10539
View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10540
View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10541
6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10542
4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10543
IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10544
3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10546
3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10550
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10551
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10556
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10558
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10559
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10560
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10561
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10562
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10563
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10564
2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10565
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10566
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10567
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10568
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10569
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10570
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10571
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10572
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10573
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10574
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10575
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10576
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10577
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10578
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10579
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10580
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10581
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10582
View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10583
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10584
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10585
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10586
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10589
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10590
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10591
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10592
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10593
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10594
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10595
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10596
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10597
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10598
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10599
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10600
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10601
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10602
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Torque Converter
Clutch Solenoid, A/T > Component Information > Diagrams > Diagram Information and Instructions > Page 10603
Torque Converter Clutch Solenoid: Connector Views
Torque Converter Clutch (TCC) Lock Up Pressure Control Solenoid (SLU)
Torque Converter Clutch (TCC) Lock Pressure Control Solenoid (SLU)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Cooler,
A/T > Component Information > Technical Service Bulletins > A/T - Fluid Oil Cooler Flush
Transmission Cooler: Technical Service Bulletins A/T - Fluid Oil Cooler Flush
INFORMATION
Bulletin No.: 02-07-30-052G
Date: March 02, 2011
Subject: Automatic Transmission Oil Cooler Flush and Flow Test Essential Tool J 45096
TransFlow(R)
Models:
2011 and Prior Passenger Cars and Light Duty Trucks 2003-2010 HUMMER H2 2006-2010
HUMMER H3 with Automatic Transmission/Transaxle including Allison(R) Transmissions
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 02-07-30-052F (Section 07 - Transmission/Transaxle).
Important All labor operations that include removal of the transmission from the vehicle include
labor time to flush the transmission oil cooler system.
The J 45096 transmission oil cooling system flush and flow test tool replaces current tool J
35944-A. J 45096 is a self-contained unit utilizing a 12-volt flow meter, shop air supply and
DEXRON(R) VI automatic transmission fluid (ATF). In the flush mode, transmission fluid is cycled
through the transmission oil cooling system. High-pressure air is automatically injected into the fluid
stream adding agitation to the ATF oil to enhance the removal of contaminated ATF oil and debris.
In the flow mode, an electronic flow meter is used to measure the flow capability of the ATF oil
cooling system. A digital display indicates the ATF oil flow rate in gallons per minute (GPM) along
with the amount of ATF oil in the supply vessel, supply vessel ATF oil temperature, machine cycles
and the operating mode. The supply oil vessel has 30 L (32 qt) capacity and the waste oil vessel
has 32 L (34 qt) capacity. The waste oil vessel is constructed of a translucent composite material
that allows the user to easily identify the oil level. The waste oil vessel can accommodate vacuum
evacuation and gravity draining. In the code mode, a random, encrypted code is generated that can
be used for verification of flow test results.
Current essential cooler line adapters are used to connect the J 45096 to the automatic
transmission oil cooler lines that allows J 45096 to adapt to General Motors passenger cars and
light duty trucks, current and past models (except the Pontiac Vibe, Wave and Chevrolet Aveo).
The tool may be adapted for use on the Pontiac Vibe, Wave and Chevrolet Aveo by dealership
personnel with a barbed hose connector and rubber hose obtained locally. The
Vibe's/Wave's/Aveo's transmission has a transmission oil requirement which is slightly different
than DEXRON(R) VI ATF. However, flushing the cooler with DEXRON(R) VI automatic
transmission fluid is an acceptable service procedure. Very little fluid remains in the cooler after the
flush procedure and the residual DEXRON(R) VI ATF in the cooler is compatible with the
Vibe's/Wave's/Aveo's transmission fluid.
Notice
Insufficient oil flow through the ATF oil cooling system will cause premature transmission failure.
The required minimum ATF oil flow rate reading is directly related to the supply oil temperature.
Refer to the flow rate reference chart for the oil flow rate specification based on the temperature of
the ATF in the supply vessel.
Helpful Hints for Maintaining the Temperature at or above 18°C (65°F)
Important
- The temperature of the supply vessel oil must be 18°C (65°F) or greater for J 45096 to operate. It
is recommended to store the J 45096 in an area of the dealership where the room temperature
remains at or above 18°C (65°F) when not in use.
- Do not attempt to increase the fluid temperature in the Transflow(R) machine with an engine oil
dipstick, or any other immersion type heater. The Transflow(R) machine has a check valve in the
supply reservoir. Inserting a heater will damage the check valve and the subsequent repair
expense would be the dealer's responsibility.
- A heater blanket, P/N J-45096-10, is available for the Transflow(R) transmission cooling system
flushing tool. This heater fastens around the Transflow(R) internal supply vessel and runs on 110
volts AC. The heater will warm the ATF in the supply vessel to at least 18°C (65° F) and has a
thermostat to hold a constant temperature.
Store the Transmission Cooling System Service Tool, J 45096, Transflow(R) machine in a room
where the temperature is maintained at or above 18°C (65°F).
Keep the ATF level in the reservoir low when the Transmission Cooling System Service Tool, J
45096, Transflow(R), is not in use. Store several gallons of oil in an area where the temperature is
maintained at or above 18°C (65°F). Fill the reservoir of the J 45096 as needed before using the
machine on
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Cooler,
A/T > Component Information > Technical Service Bulletins > A/T - Fluid Oil Cooler Flush > Page 10608
each repair.
With the ATF in a tightly sealed container, place the container in a tub of hot water for a period of
time. Then pour the ATF into the reservoir. This method works best with a low fluid level in the
reservoir.
Place the Transflow(R) machine in the direct sunlight with the cabinet door open to expose the
reservoir to the rays of the warm sun.
Flush / Flow Test Procedure
Important All labor operations that include removal of the transmission from the vehicle and require
the transmission oil pan or transmission side cover to be removed include labor time to flush the
transmission oil cooler system.
Refer to SI for Automatic Transmission Oil Cooler Flushing and Flow Test J 45096 for the
appropriate procedure.
Important The J 45096 can be used to flush the transmission oil cooler system on an Allison
equipped vehicle, but the flow meter should not be utilized. Refer to SI for Automatic Transmission
Oil Cooler Flushing and Flow Test J 45096 for the appropriate flow check procedure.
Machine Displays
After completion of the flush and flow test, the following information is to be recorded on the repair
order. This information is displayed on the Transmission Cooling System Service Tool, J 45096,
Transflow(R) machine when the dial is in the code position.
- Tested flow rate (displayed in Gallons Per Minute (GPM)
- Temperature (displayed is degrees Fahrenheit)
- Cycle number (a number)
- Seven digit Alpha/Numeric flow code (i.e. A10DFB2)
Warranty Information
Important All labor operations that include removal of the transmission from the vehicle include
labor time to flush the transmission oil cooler system.
Performing a transmission oil cooling system flush and flow test will use between 4.7-7.5 L (5-8 qts)
of DEXRON(R)VI transmission fluid. The amount
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Cooler,
A/T > Component Information > Technical Service Bulletins > A/T - Fluid Oil Cooler Flush > Page 10609
of transmission fluid (ATF), (DEXRON(R)VI) (fluid) that is to be charged for the flush portion of the
repair should not exceed the allowable charge for 7.5 L (2 gal) of fluid. This expense should be
shown in the Parts Section of the warranty claim document.
The Seven digit Alpha/Numeric flow code, i.e. A10DFB2, "MUST" be written on the job card and
placed in the comments section of the warranty claim. Any repair that requires the technician to
contact the Product Quality Center (PQC) must also include the seven digit flow code. The agent
will request the seven digit flow code and add the information to the PQC case prior to providing
authorization for the warranty claim.
The Seven digit Alpha/Numeric flow code, i.e. A10DFB2, "MUST" be written on the job card,
entered in the warranty claim labor operation Flush Code additional field (when available) and
placed in the comments section of the warranty claim. Any repair that requires the technician to
contact the Product Quality Center (PQC) must also include the seven digit flow code. The agent
will request the seven digit flow code and add the information to the PQC case prior to providing
authorization for the warranty claim.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Cooler,
A/T > Component Information > Technical Service Bulletins > A/T - Fluid Oil Cooler Flush > Page 10610
Transmission Cooler: Technical Service Bulletins A/T - Water Or Coolant Contamination
Information
INFORMATION
Bulletin No.: 08-07-30-035B
Date: November 01, 2010
Subject: Information on Water or Ethylene Glycol in Transmission Fluid
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks with Automatic Transmission
Supercede: This bulletin is being revised to update model years. Please discard Corporate Bulletin
Number 08-07-30-035A (Section 07 - Transmission/Transaxle).
Water or ethylene glycol in automatic transmission fluid (ATF) is harmful to internal transmission
components and will have a negative effect on reliability and durability of these parts. Water or
ethylene glycol in ATF will also change the friction of the clutches, frequently resulting in shudder
during engagement or gear changes, especially during torque converter clutch engagement.
Indications of water in the ATF may include:
- ATF blowing out of the transmission vent tube.
- ATF may appear cloudy or, in cases of extreme contamination, have the appearance of a
strawberry milkshake.
- Visible water in the oil pan.
- A milky white substance inside the pan area.
- Spacer plate gaskets that appear to be glued to the valve body face or case.
- Spacer plate gaskets that appear to be swollen or wrinkled in areas where they are not
compressed.
- Rust on internal transmission iron/steel components.
If water in the ATF has been found and the source of the water entry has not been identified, or if a
leaking in-radiator transmission oil cooler is suspected (with no evidence of cross-contamination in
the coolant recovery reservoir), a simple and quick test kit is available that detects the presence of
ethylene glycol in ATF. The "Gly-Tek" test kit, available from the Nelco Company, should be
obtained and the ATF tested to make an accurate decision on the need for radiator replacement.
This can help to prevent customer comebacks if the in-radiator transmission oil cooler is leaking
and reduce repair expenses by avoiding radiator replacement if the cooler is not leaking. These
test kits can be obtained from:
Nelco Company
Test kits can be ordered by phone or through the website listed above. Orders are shipped
standard delivery time but can be shipped on a next day delivery basis for an extra charge. One
test kit will complete 10 individual fluid sample tests. For vehicles repaired under warranty, the cost
of the complete test kit plus shipping charges should be divided by 10 and submitted on the
warranty claim as a net item.
The transmission should be repaired or replaced based on the normal cost comparison procedure.
Important If water or coolant is found in the transmission, the following components MUST be
replaced.
- Replace all of the rubber-type seals.
- Replace all of the composition-faced clutch plates and/or bands.
- Replace all of the nylon parts.
- Replace the torque converter.
- Thoroughly clean and rebuild the transmission, using new gaskets and oil filter.
Important The following steps must be completed when repairing or replacing.
Flush and flow check the transmission oil cooler using J 45096. Refer to Corporate Bulletin Number
02-07-30-052F- Automatic Transmission Oil Cooler Flush and Flow Test Essential Tool J 45096
TransFlow.
- Thoroughly inspect the engine cooling system and hoses and clean/repair as necessary.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Cooler,
A/T > Component Information > Technical Service Bulletins > A/T - Fluid Oil Cooler Flush > Page 10611
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Mount,
A/T > Component Information > Testing and Inspection
Transmission Mount: Testing and Inspection
Transmission Mount Inspection
Inspection Procedure
Notice: In order to avoid oil pan damage and possible engine failure, insert a block of wood that
spans the width of the oil pan bottom between the oil pan and the jack support.
Important: Before replacing any transmission mount due to a suspected fluid loss, verify that the
source of the fluid is the mount.
1. Raise the transmission/transaxle in order to relieve tension in the mount. 2. Observe the mount
while raising the transmission/transaxle. Raising the transmission/transaxle removes the weight
from the mount. 3. Replace the mount if it exhibits any of the following conditions:
* The hard rubber surface is covered with heat check cracks.
* The rubber is separated from the outer metal sleeve of the mount.
* The rubber is split through the center of the transmission mount.
* The mount is leaking fluid.
4. When replacing the transmission mounts or brackets, refer to the following procedures:
* Transmission Rear Mount Replacement
* Transmission Rear Mount Bracket Replacement
* Transmission Mount Replacement - Left Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Mount,
A/T > Component Information > Service and Repair > Transmission Rear Mount Replacement
Transmission Mount: Service and Repair Transmission Rear Mount Replacement
Transmission Rear Mount Replacement
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove both front tires and wheels.
3. If equipped with AWD, disconnect the stabilizer links from the stabilizer shaft. 4. If equipped with
AWD, swing the stabilizer shaft upwards in order to gain additional clearance.
5. Remove the transmission mount-to-bracket through bolt. 6. Remove the transmission
mount-to-frame bolts. 7. Remove the transmission mount from the vehicle.
Installation Procedure
1. Position the transmission mount to the frame.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Mount,
A/T > Component Information > Service and Repair > Transmission Rear Mount Replacement > Page 10617
Notice: Refer to Fastener Notice.
2. Install the transmission mount-to-frame bolts.
Tighten the bolt to 50 N.m (37 lb ft).
3. Install the transmission mount-to-bracket through bolt, while aligning the transmission mount to
the bracket.
Tighten the bolt to 110 N.m (81 lb ft).
4. If equipped with AWD, lower the stabilizer shaft and connect the stabilizer links.
Tighten the stabilizer link nuts to 65 N.m (48 lb ft).
5. Install both front tires and wheels. 6. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Mount,
A/T > Component Information > Service and Repair > Transmission Rear Mount Replacement > Page 10618
Transmission Mount: Service and Repair Transmission Mount Replacement - Left Side
Transmission Mount Replacement - Left Side
Removal Procedure
1. Support the engine. Refer to Engine Support Fixture. 2. Remove the battery tray.
3. Remove the transmission mount to transmission bolts.
4. Remove the transmission mount to frame rail bolts. 5. Remove the mount from the engine.
Installation Procedure
1. Position the transmission mount on the frame rail.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Mount,
A/T > Component Information > Service and Repair > Transmission Rear Mount Replacement > Page 10619
Notice: Refer to Fastener Notice.
2. Install the transmission mount to frame rail bolts.
Tighten the bolts to 37 N.m (27 lb ft).
3. Install the transmission mount to transmission bolts.
Tighten the bolts to 55 N.m (41 lb ft).
4. Install the battery tray. 5. Remove the engine support.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Mount,
A/T > Component Information > Service and Repair > Transmission Rear Mount Replacement > Page 10620
Transmission Mount: Service and Repair Transmission Rear Mount Bracket Replacement
Transmission Rear Mount Bracket Replacement
Removal Procedure
1. Remove the rear transmission mount.
2. Disconnect the intermediate steering shaft from the steering gear.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Mount,
A/T > Component Information > Service and Repair > Transmission Rear Mount Replacement > Page 10621
3. Remove the steering gear to frame bolts. 4. Secure the steering gear upward in order to gain
additional clearance.
5. Remove the transmission mount bracket to transmission bolts.
6. Remove the transmission mount bracket from the vehicle.
Installation Procedure
1. Position the transmission mount bracket to the transmission.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Mount,
A/T > Component Information > Service and Repair > Transmission Rear Mount Replacement > Page 10622
Notice: Refer to Fastener Notice.
2. Install the transmission mount bracket to transmission bolts.
Tighten the bolts to 110 N.m (81 lb ft).
3. Lower the steering gear to the frame. 4. Install the steering gear to frame bolts.
Tighten the bolts to 110 N.m (81 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Mount,
A/T > Component Information > Service and Repair > Transmission Rear Mount Replacement > Page 10623
5. Install the intermediate steering shaft to the steering gear. 6. Install the intermediate steering
shaft to gear pinch bolt.
Tighten the bolts to 34 N.m (25 lb ft).
7. Install the rear transmission mount.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Position
Switch/Sensor, A/T > Component Information > Locations
Transmission Position Switch/Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
75 - Park/Neutral Position Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Position
Switch/Sensor, A/T > Component Information > Locations > Page 10627
Transmission Position Switch/Sensor: Adjustments
Transaxle Range Switch Adjustment
Tools Required
* J 36346 Fascia Retainer Remover
* J 45404 Transmission Indicator Alignment Tool
1. Remove the battery tray. 2. Shift the transaxle into neutral (N) position.
3. Using the J 36346, remove the shift control cable from the transaxle range switch lever.
4. Loosen the transaxle range switch bolt (2) and stud (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Position
Switch/Sensor, A/T > Component Information > Locations > Page 10628
5. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
on the J 45404.
Notice: Refer to Fastener Notice.
6. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
7. Remove the J 45404 from the manual shaft. 8. Install the shift control cable to the transaxle
range switch lever. 9. Install the battery tray.
10. After adjusting the transaxle range switch, verify the engine only starts in park (P) or neutral
(N). If the engine starts in any other position, readjust
the switch.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Lever
Replacement
Transaxle Range Switch Lever Replacement
Tools Required
J 36346 Fascia Retainer Remover
Removal Procedure
1. Remove the battery tray.
2. Using the J 36346, disconnect the shift control cable from the transaxle range switch lever.
3. Remove the transaxle range switch lever nut and lever.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page
10631
Notice: Refer to Fastener Notice.
1. Install the transaxle range switch lever and lever nut.
Tighten the nut to 16 N.m (12 lb ft).
2. Install the shift control cable end fitting onto the ball stud of the transaxle range switch lever. An
audible snap will be heard when properly
installed.
3. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page
10632
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Replacement
Transaxle Range Switch Replacement
Tools Required
J 45404 Transmission Indicator Alignment Tool
Removal Procedure
1. Remove the battery tray.
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
switch.
2. Apply the parking brake and place control shift lever in neutral (N). 3. Remove the transaxle
range switch lever.
4. Disconnect the electrical connectors (3, 5) from the transaxle range switch.
5. Using a screwdriver, bend the lockwasher tabs down away from the manual shaft nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page
10633
6. Remove the nut, lock tab washer, and flat washer.
7. Remove the transaxle range switch bolt (2), stud (1), and flat washers. 8. Remove the transaxle
range switch (3).
Installation Procedure
1. Install the transaxle range switch (3) to the manual shaft lever. 2. Install the washer stud (1) and
the bolt (2). Hand tighten ONLY at this time.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page
10634
Notice: Refer to Fastener Notice.
3. Install the flat washer, lock tab washer, and nut.
Tighten the nut to 7 N.m (62 lb in).
4. Ensure the manual shaft is in neutral (N) position.
5. Bend the lock washer tabs up to secure the nut.
6. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Position
Switch/Sensor, A/T > Component Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page
10635
on the J 45404.
7. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
8. Remove the J 45404 from the manual shaft.
9. Connect the electrical connectors (3, 5) to the transaxle range switch.
10. Install the transaxle range switch lever. 11. Install the battery tray. 12. After installing and
adjusting the switch, verify the engine only starts in park (P) or neutral (N). If the engine starts in
any other position, readjust
the switch. Refer to Transaxle Range Switch Adjustment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Speed
Sensor, A/T > Component Information > Locations
Transmission Speed Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
62 - Automatic Transmission Output Speed Sensor 73 - Automatic Transmission Input Speed
Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Speed
Sensor, A/T > Component Information > Diagrams > Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Transmission Speed Sensor: Diagrams Input Shaft Speed (ISS) Sensor Connector, Wiring
Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Speed
Sensor, A/T > Component Information > Diagrams > Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side >
Page 10641
Transmission Speed Sensor: Diagrams Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Speed
Sensor, A/T > Component Information > Service and Repair > Input Speed Sensor Replacement
Transmission Speed Sensor: Service and Repair Input Speed Sensor Replacement
Input Speed Sensor Replacement
Removal Procedure
1. Remove the battery tray.
2. Disconnect the wiring harness (4) from the input speed sensor.
3. Remove the input speed sensor bolt. 4. Remove the input speed sensor. 5. Remove the input
speed sensor O-ring. Discard the O-ring.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Speed
Sensor, A/T > Component Information > Service and Repair > Input Speed Sensor Replacement > Page 10644
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new input speed sensor
O-ring. 2. Install the new input speed sensor O-ring onto the input speed sensor. 3. Install the input
speed sensor to the transaxle.
Notice: Refer to Fastener Notice.
4. Install the input speed sensor bolt.
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (4) to the input speed sensor. 6. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Speed
Sensor, A/T > Component Information > Service and Repair > Input Speed Sensor Replacement > Page 10645
Transmission Speed Sensor: Service and Repair Output Speed Sensor Replacement
Output Speed Sensor Replacement
Removal Procedure
1. Disconnect the wiring harness (2) from the output shaft speed sensor.
2. Remove the output speed sensor bolt (3). 3. Remove the output shaft speed sensor (2) and the
O-ring (1).
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission Speed
Sensor, A/T > Component Information > Service and Repair > Input Speed Sensor Replacement > Page 10646
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new output speed sensor
O-ring (1). 2. Install the new output speed sensor O-ring (1) onto the output speed sensor (2). 3.
Install the output speed sensor (2) into the transmission case assembly.
Notice: Refer to Fastener Notice.
4. Install the output speed sensor bolt (3).
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (2) to the output shaft speed sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission
Temperature Sensor/Switch, A/T > Component Information > Locations
Transmission Temperature Sensor/Switch: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Transmission
Temperature Sensor/Switch, A/T > Component Information > Locations > Page 10650
Transmission Temperature Sensor/Switch: Diagrams
Automatic Transmission Fluid Temperature (TFT) Sensor
Automatic Transmission Fluid Temperature (TFT) Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Technical Service Bulletins > A/T Control - DTC P0756 Diagnostic Tips
Valve Body: Technical Service Bulletins A/T Control - DTC P0756 Diagnostic Tips
INFORMATION
Bulletin No.: 01-07-30-036H
Date: January 29, 2009
Subject: Diagnostic Tips for Automatic Transmission DTC P0756, Second, Third, Fourth Gear Start
Models: 2009 and Prior GM Passenger Cars and Light Duty Trucks 2009 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
with 4L60-E, 4L65-E or 4L70E Automatic Transmission (RPOs M30, M32 or M70)
Supercede:
This bulletin is being revised to add the 2009 model year and add details regarding spacer plates.
Please discard Corporate Bulletin Number 01-07-30-036G (Section 07 - Transmission/Transaxle).
Some dealership technicians may have difficulty diagnosing DTC P0756, 2-3 Shift Valve
Performance on 4L60-E, 4L65-E or 4L70E automatic transmissions. As detailed in the Service
Manual, when the PCM detects a 4-3-3-4 shift pattern, DTC P0756 will set. Some customers may
also describe a condition of a second, third or fourth gear start that may have the same causes but
has not set this DTC yet. Below are some tips when diagnosing this DTC:
^ This is a performance code. This means that a mechanical malfunction exists.
^ This code is not set by electrical issues such as a damaged wiring harness or poor electrical
connections. Electrical problems would cause a DTC P0758, P0787 or P0788 to set.
^ The most likely cause is chips/debris plugging the filtered AFL oil at orifice # 29 on the top of the
spacer plate (48). This is a very small hole and is easily plugged by a small amount of debris. It is
important to remove the spacer plate and inspect orifice # 29 and the immediate area for the
presence of chips/debris. Also, the transmission case passage directly above this orifice and the
valve body passage directly below should be inspected and cleaned of any chips/debris. For 2003
and newer vehicles the spacer plate should be replaced. The service replacement spacer plate is a
bonded style with gaskets and solenoid filter screens bonded to the spacer plate. These screens
can help to prevent plugging of orifice # 29 caused by small debris or chips.
^ This code could be set if the 2-3 shift valve (368) were stuck or hung-up in its bore. Inspect the
2-3 shift valve (368) and the 2-3 shuttle valve (369) for free movement or damage and clean the
valves, the bore and the valve body passages.
^ This code could be set by a 2-3 shift solenoid (367b) if it were cracked, broken or leaking. Refer
to Shift Solenoid Leak Test in the appropriate Service Manual for the leak test procedure. Based on
parts return findings, a damaged or leaking shift solenoid is the least likely cause of this condition.
Simply replacing a shift solenoid will not correct this condition unless the solenoid has been found
to be cracked, broken or leaking.
It is important to also refer to the appropriate Service Manual or Service Information (SI) for further
possible causes of this condition.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Diagrams > Control Valve Body Assembly
Valve Body: Diagrams Control Valve Body Assembly
Disassembled Views
Control Valve Body Assembly
Control Valve Body Assembly
300 - 1-2, 2-3, Reverse Shift Solenoid Valve Assembly (S3) - Dark Gray 301 - Control Valve Body
Bolt/Screw (M5 x 0.8 x 62) 302 - Control Valve Body Bolt/Screw (M5 x 0.8 x 28) (2) 302 - Control
Valve Body Bolt/Screw (M5 x 0.8 x 28) (2) 302 - Control Valve Body Bolt/Screw (M5 x 0.8 x 28) (2)
303 - 3-4, 4-5 Shift Solenoid Valve Assembly (S4) - Blue 304 - Control Valve Body Bolt/Screw (M5
x 0.8 x 50) (2) 304 - Control Valve Body Bolt/Screw (M5 x 0.8 x 50) (2) 305 - Reverse Shift
Solenoid Valve Assembly (S5) - Brown 306 - Shift Solenoid Valve O-ring Seal (5) 306 - Shift
Solenoid Valve O-ring Seal (5) 306 - Shift Solenoid Valve O-ring Seal (5) 307 - Control Valve Body
Bolt/Screw (M5 x 0.8 x 10) (3) 307 - Control Valve Body Bolt/Screw (M5 x 0.8 x 10) (3) 307 -
Control Valve Body Bolt/Screw (M5 x 0.8 x 10) (3) 308 - 2-3, 3-4 Shift Solenoid Valve Assembly
(S2) - Black 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1) - Black 311 - Control Valve
Body Bolt/Screw (M5 x 0.8 x 13) 312 - Control Valve Body Solenoid Valve Retainer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Diagrams > Control Valve Body Assembly > Page 10657
313 - Control Valve Body Bolt/Screw (M5 x 0.8 x 20) (5) 313 - Control Valve Body Bolt/Screw (M5 x
0.8 x 20) (5) 314 - Control Valve Body Bolt/Screw (M5 x 0.8 x 16) (2) 315 - Front Control Valve
Body Assembly 316 - Line Pressure Control Solenoid Valve Assembly (SLT) - Blue 318 - Automatic
Transmission Wiring Harness Clip 319 - TCC Lock Up Control Solenoid Valve Retainer (SLU) 320 Front Control Valve Body to Front Control Valve Body Spacer Plate Gasket 321 - Front Control
Valve Body Spacer Plate 322 - Front Control Valve Body Spacer Plate to Middle Control Valve
Body Gasket 323 - Middle Control Valve Body Assembly 324 - Middle Control Valve Body
Assembly to Rear Control Valve Body Spacer Plate and Gasket Assembly 326 - Rear Control
Valve Body Assembly 327 - Rear Control Valve Body to Rear Control Valve Body Spacer Plate
Gasket 328 - Rear Control Valve Body Assembly Spacer Plate 329 - Rear Control Valve Body
Assembly Spacer Plate to No. 2 Rear Control Valve Body Assembly Gasket 330 - No. 2 Rear
Control Valve Body Assembly 331 - Control Valve Body Bolt/Screw (M5 x 0.8 x 76) 332 - Control
Valve Body Bolt/Screw (M5 x 0.8 x 49.5) (4) 333 - Control Valve Body Bolt/Screw (M5 x 0.8 x 40)
334 - Control Valve Body Assembly Pressure Test Hole Bolt/Screw Pressure Tap (M6 x 1.0 x 12)
(1) 335 - Control Valve Body Bolt/Screw (M5 x 0.8 x 35) (2) 336 - Manual Valve Link 337 - Manual
Valve 338 - Manual Valve Link Retainer 339 - TCC Lock Up Pressure Control Solenoid Valve
Assembly (SLU) - Black 340 - Shift Pressure Control Solenoid Valve Assembly (SLS) - Green
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Diagrams > Control Valve Body Assembly > Page 10658
Valve Body: Diagrams Front Control Valve Body Assembly
Disassembled Views
Front Control Valve Body Assembly
Front Control Valve Body Assembly
345 - Front Control Valve Body 346 - Solenoid Modulator Valve 347 - Solenoid Modulator Valve
Spring - Yellow 348 - Solenoid Modulator Valve Bore Plug (4) 348 - Solenoid Modulator Valve Bore
Plug (4) 348 - Solenoid Modulator Valve Bore Plug (4) 348 - Solenoid Modulator Valve Bore Plug
(4) 349 - Sleeve/Bore Plug Retainer (3.2 x 5 x 10) (4) 349 - Sleeve/Bore Plug Retainer (3.2 x 5 x
10) (4) 349 - Sleeve/Bore Plug Retainer (3.2 x 5 x 10) (4) 349 - Sleeve/Bore Plug Retainer (3.2 x 5
x 10) (4) 350 - Pressure Relief Valve Spring - Natural Color 351 - Pressure Relief Valve 352 - Fluid
Strainer 354 - Forward Clutch (C1) Control Valve 355 - Ball Check Valve 356 - Neutral Relay Valve
357 - Neutral Relay Valve Spring - Light Blue 358 - 2nd Coast Clutch (B1) Control Valve Spring Blue 359 - 2nd Coast Clutch (B1) Control Valve 360 - Check Valve (2) 361 - Check Valve Spring
(2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Diagrams > Control Valve Body Assembly > Page 10659
Valve Body: Diagrams Middle Control Valve Body Assembly
Disassembled Views
Middle Control Valve Body Assembly
Middle Control Valve Body Assembly
353 - Accumulator Check Valve Assembly (6) 353 - Accumulator Check Valve Assembly (7) 362 Sleeve/Bore Plug Retainer (3.2 x 5 x 12.5) (7) 362 - Sleeve/Bore Plug Retainer (3.2 x 5 x 12.5) (7)
362 - Sleeve/Bore Plug Retainer (3.2 x 5 x 12.5) (7) 362 - Sleeve/Bore Plug Retainer (3.2 x 5 x
12.5) (7) 362 - Sleeve/Bore Plug Retainer (3.2 x 5 x 12.5) (7) 362 - Sleeve/Bore Plug Retainer (3.2
x 5 x 12.5) (7) 362 - Sleeve/Bore Plug Retainer (3.2 x 5 x 12.5) (7) 370 - Middle Control Valve Body
371 - Fluid Strainer (3) 371 - Fluid Strainer (3) 372 - Fluid Strainer 373 - Reverse Shift Ball Check
Valve Bushing - Inner 374 - Reverse Shift Ball Check Valve 375 - Reverse Shift Ball Check Valve
Bushing - Outer 376 - Solenoid Relay Valve Sleeve 377 - Solenoid Relay Valve Plunger 378 Solenoid Relay Valve 379 - Solenoid Relay Valve Spring - Orange 380 - Cooler By-Pass Valve
Spring - Natural Color 381 - Cooler By-Pass Valve 382 - TCC Check Valve 383 - TCC Check Valve
Spring - Yellow 384 - 3rd Gear Band (B4) Release Valve Spring - Blue 385 - 3rd Gear Band (B4)
Release Valve 386 - U1 Shift Valve 387 - U1 Shift Valve Spring - Light Green
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Diagrams > Control Valve Body Assembly > Page 10660
389 - M1 Shift Valve 390 - M1 Shift Valve Spring - Light Blue 391 - M1 Shift Valve Bore Plug 392 U2 Shift Valve 393 - U2 Shift Valve Spring - Light Green 394 - U2 Shift Valve Bore Plug (3) 394 U2 Shift Valve Bore Plug (3) 394 - U2 Shift Valve Bore Plug (3) 395 - Primary Regulator Valve 396
- Primary Regulator Valve Spring - Purple 397 - Primary Regulator Valve Plunger 398 - Primary
Regulator Valve Sleeve 399 - Forward Clutch Check Ball
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Diagrams > Control Valve Body Assembly > Page 10661
Valve Body: Diagrams Rear Control Valve Body Assembly
Disassembled Views - continued
Rear Control Valve Body Assembly
Rear Control Valve Body Assembly
410 - Rear Control Valve Body 411 - 1-2 Reverse Clutch (B5) Control Valve 412 - Lock Up Relay
Control Valve Sleeve 413 - Lock Up Relay Control Valve Plunger 414 - Lock Up Relay Valve
Spring - Red 415 - Lock Up Relay Valve 416 - Rear Valve Body Cover Plate Bolt - Hexagon (M5 x
0.8 x 13) (2) 417 - Rear Valve Body Cover Plate 418 - Rear Valve Body Cover Plate Gasket 419 Rear Valve Body Cover Plate Gasket 420 - Rear Valve Body Cover Plate 421 - Rear Valve Body
Cover Plate Bolt - Hexagon (M5 x 0.8 x 13) (7) 422 - 3rd Gear Band (B4) Control Valve Spring Orange 423 - 3rd Gear Band (B4) Control Valve 424 - Shift Pressure Relay Valve 425 - Shift
Pressure Relay Valve Spring - Light Green 426 - M2 Shift Valve 427 - M2 Shift Valve Spring - Light
Blue 428 - Shift Pressure Control Valve Sleeve 429 - Shift Pressure Control Valve Spring - White
430 - Shift Pressure Control Valve 431 - Shift Pressure Control Valve Plunger 432 - Shift Pressure
Control Valve Plunger Sleeve 433 - Line Pressure Control (SLT) Accumulator Piston 434 - Line
Pressure Control (SLT) Accumulator Piston Spring - Outer - Orange 435 - Line Pressure Control
(SLT) Accumulator Piston Spring - Inner - Orange 436 - Secondary Regulator Valve 437 Secondary Regulator Valve Spring - Natural Color
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Diagrams > Control Valve Body Assembly > Page 10662
Valve Body: Diagrams No. 2 Rear Control Valve Body Assembly
Disassembled Views - continued
No. 2 Rear Control Valve Body Assembly
No. 2 Rear Control Valve Body Assembly
353 - Accumulator Check Valve Assembly (2) 353 - Accumulator Check Valve Assembly (2) 445 No. 2 Rear Control Valve Body 446 - 2nd Clutch (B2) Control Valve 447 - 2nd Clutch (B2) Control
Valve Spring - Natural Color 448 - 2nd Clutch (B2) Control Valve Plug 449 - TCC Check Valve
Spring - Light Blue 450 - TCC Check Valve 451 - Reverse Shift Restrict Ball Check Valve Bushing Inner 452 - Reverse Shift Restrict Ball Check Valve 453 - Reverse Shift Restrict Ball Check Valve
Bushing - Outer 454 - Lock Up Control Valve 455 - Lock Up Control Valve Plunger 456 - Lock Up
Control Valve Spring - Yellow 457 - Lock Up Control Valve Sleeve 458 - Sleeve/Bore Plug Retainer
(3.2 x 5 x 21.2) 459 - Sleeve/Bore Plug Retainer (3.2 x 5 x 15) (2) 459 - Sleeve/Bore Plug Retainer
(3.2 x 5 x 15) (2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Service and Repair > Control Valve Body Cover Replacement
Valve Body: Service and Repair Control Valve Body Cover Replacement
Control Valve Body Cover Replacement
Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting. 2. Remove the left front wheel and tire assembly. 3.
Remove the left splash shield. 4. Remove the front engine mount. 5. Remove the transaxle oil
cooler lines and seals from the transaxle.
6. Remove the 9 TORX bolts (2) from the control valve body cover (1).
Important: Do not pry with a tool on the transaxle control valve body cover, case or sealing
surfaces.
7. Remove control valve body cover.
Installation Procedure
1. Clean any gasket material from the control valve body cover and inspect the gasket mounting
surface. 2. Install a 3 mm (0.125 in) bead of RTV sealer GM P/N 89020326 (Canadian P/N
89021188) onto the control valve body cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Service and Repair > Control Valve Body Cover Replacement > Page 10665
3. Install the control valve body cover (1) onto the transaxle case.
Important: Use LOCTITE(TM) 242 thread sealer on ALL bolt threads.
4. Install the control valve body cover bolts (2) hand tight.
Notice: Refer to Fastener Notice.
5. Tighten the control valve body cover bolts in the sequence shown.
Tighten the bolts to 13 N.m (115 lb in).
6. Install the transaxle oil cooler lines and seals to the transaxle. 7. Install the front engine mount.
8. Install the left splash shield. 9. Install the left front wheel and the tire assembly.
10. Lower the vehicle. 11. Check the transaxle fluid level. Refer to Transmission Fluid Checking.
See: Testing and Inspection/Component Tests and General
Diagnostics/Transmission Fluid Checking
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Service and Repair > Control Valve Body Cover Replacement > Page 10666
Valve Body: Service and Repair Control Valve Body Replacement
Control Valve Body Replacement
Removal Procedure
Important: Place the transaxle in neutral (N).
1. Remove the control valve body cover.
2. Disconnect the wiring harness connectors (1-8).
3. Remove the fluid temperature sensor bolt (31). 4. Remove the fluid temperature sensor clamp
(49). 5. Remove the fluid temperature sensor (36) and the O-ring (32) from the control valve body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Service and Repair > Control Valve Body Cover Replacement > Page 10667
6. Remove the wiring harness (33) from the automatic transaxle wiring harness clip. 7. With a
twisting motion remove the complete wiring harness assembly.
8. Remove the 2 control valve body bolts/screws (31), control valve body fluid passage cover (37)
and gasket (38).
9. Remove the 6 control valve body mounting bolts/screws (1-6).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Service and Repair > Control Valve Body Cover Replacement > Page 10668
10. While holding the control valve body assembly, disconnect the manual shift detent lever
assembly (710) from the manual valve link (336). 11. Move the detent lever assembly clockwise for
ease of removing the manual valve. 12. Remove the control valve body assembly (39).
13. Remove the 2 transaxle case fluid passage seals (86).
Installation Procedure
1. Install 2 new transaxle case fluid passage seals (86) into the transaxle case fluid ports.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Service and Repair > Control Valve Body Cover Replacement > Page 10669
2. While holding the control valve body assembly (39), connect the manual valve link (336) to the
manual shift detent lever assembly (710).
3. Install the 6 control valve body assembly to transaxle case bolts and hand tighten.
Notice: Refer to Fastener Notice.
4. Tighten the control valve body assembly-to-transaxle case bolts in sequence.
Tighten the bolts to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Service and Repair > Control Valve Body Cover Replacement > Page 10670
5. Install a new control valve body fluid passage cover gasket (38). 6. Install the control valve body
fluid passage cover (37). 7. Install the 2 control valve body bolts (31).
Tighten the bolt to 10 N.m (89 lb in).
8. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to a new transaxle wiring connector
O-ring seal (46). 9. Install a new transaxle wiring connector O-ring seal (46) onto the transaxle
wiring harness assembly (33).
10. Install the transaxle wiring harness assembly (33) into the transaxle case through the wiring
harness bore.
11. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to a new transaxle fluid
temperature sensor O-ring seal (32).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Automatic Transmission/Transaxle > Valve Body, A/T >
Component Information > Service and Repair > Control Valve Body Cover Replacement > Page 10671
12. Install a new transaxle fluid temperature sensor O-ring seal (32) into the groove of the transaxle
fluid temperature sensor (36). 13. Install the transaxle fluid temperature sensor (36) into the front
control valve body fluid temperature sensor bore. 14. Install the transaxle fluid temperature sensor
clip (49). 15. Install the fluid temperature sensor bolt (31).
Tighten the bolt to 10 N.m (89 lb in).
16. Connect the 8 solenoid wire connectors as follows:
* 1 blue
* 2 black
* 3 green
* 4 black
* 5 blue
* 6 gray
* 7 brown
* 8 black
17. Install the control valve body cover. 18. Perform the transmission adaptive learn procedure.
Refer to Transmission Adaptive Learn and Transmission Neutral Learn. See: Testing and
Inspection/Component Tests and General Diagnostics/Transmission Adaptive Learn and
Transmission Neutral Learn
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Clutch, M/T > Clutch Hydraulic System > System Information
> Technical Service Bulletins > M/T - Hydraulic Clutch Bleeding Procedure Improvement
Clutch Hydraulic System: Technical Service Bulletins M/T - Hydraulic Clutch Bleeding Procedure
Improvement
Bulletin No.: 01-07-31-002B
Date: November 01, 2006
INFORMATION
Subject: Improved Bleeding Procedure for Hydraulic Clutch Release System
Models: 2007 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2007 and
Prior Chevrolet and GMC 6-7F T-Series Medium Duty Tilt Cab Models 2007 and Prior Isuzu
F-Series Medium Duty Tilt Cab Models 2006-2007 HUMMER H3
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
01-07-31-002A (Section 07 - Transmission/Transaxle). This bulletin is being issued to inform
dealers of an improved procedure to aid in the ease of bleeding the clutch hydraulic system for the
above listed vehicles. This procedure can be used anytime air is introduced into the hydraulic
system. Following this procedure may also reduce the number of unnecessary parts replaced for
low clutch pedal reserve and high shift effort.
Verify that all the lines and fittings are dry and secure.
Clean the dirt and grease from the reservoir cap in order to ensure that no foreign substances enter
the system.
Remove the reservoir cap.
Fill the reservoir to the proper level with the required fluid.
Attach the J 43485 (Adapter) to the J 35555 (Mity Vac), or equivalent.
Brake fluid will deteriorate the rubber on J 43485. Use a clean shop cloth to wipe away the fluid
after each use.
Place and hold the adapter on the reservoir filler neck to ensure a tight fit. In some cases, the
adapter will fit into the reservoir opening.
Apply a vacuum of 51-68 kPa (15-20 hg) and remove the adapter.
Refill the reservoir to the proper level.
Repeat Steps 6 and 7.
If needed, refill the reservoir and continue to pull a vacuum until no more bubbles can be seen in
the reservoir or until the fluid level no longer drops.
The vehicle will move if started in gear before the Actuator Cylinder is refilled and operational. Start
the vehicle the first time in neutral to help prevent personal injury from vehicle movement and see if
the transmission will shift easily into gear.
Pump the clutch pedal until firm (to refill actuator cylinder).
Add additional fluid if needed.
Test drive vehicle to ensure proper operation.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Continuously Variable Transmission/Transaxle, CVT > Shift
Interlock, CVT > Component Information > Technical Service Bulletins > A/T - Shift Lock Control Feature Function
Shift Interlock: Technical Service Bulletins A/T - Shift Lock Control Feature Function
Bulletin No.: 03-07-30-043A
Date: May 25, 2006
INFORMATION
Subject: Information Regarding Automatic Transmission Shift Lock Control Function
Models: 2007 and Prior Passenger Cars and Trucks (Including Saturn) 2007 and Prior HUMMER
H2, H3 2005-2007 Saab 9-7X
with Automatic Transmission
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 03-07-30-043 (Section 07 - Transmission/Transaxle). This bulletin is being issued to better
explain how the Automatic Transmission Shift Lock Control (formerly known as Brake Transmission
Shift Interlock (BTSI)) feature is intended to operate. Revised wording regarding the shift lock
control system began appearing in the Owner Manuals beginning with the 2004 model year.
The shift lock control feature was intended to prevent drivers from shifting out of Park with the
vehicle running without the brakes applied. However, if the ignition switch is in the Accessory
(ACC) position, it may be possible on some vehicles to move the shift lever out of Park WITHOUT
first activating the brake.
The shift lock control system is ONLY active when the ignition switch is in the RUN or ON position.
This means that when the ignition switch is in the RUN or ON position, the shift lever cannot be
moved out of the Park position without activating the brake.
Some owners may feel that the shift lock control system prevents an unattended child from moving
the vehicle. Please stress to owners, as stated in the Owner Manual, that children should NEVER
be left unattended in a vehicle, even if the ignition key has been removed from the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Differential Cover > Component
Information > Service and Repair
Differential Cover: Service and Repair
Differential Carrier Cover and Seal Replacement - Left Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Differential Lock > Control Unit,
Differential Lock > Component Information > Service and Repair
Control Unit: Service and Repair
Rear Differential Clutch Control Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Differential Mount > Component
Information > Service and Repair > Differential Housing Support Bushing Replacement (Rear)
Differential Mount: Service and Repair Differential Housing Support Bushing Replacement (Rear)
Differential Housing Support Bushing Replacement (Rear)
Tools Required
J-45725 Cradle Bushing Replacer
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the rear differential assembly.
3. Remove the mounting bolt for the support bushing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Differential Mount > Component
Information > Service and Repair > Differential Housing Support Bushing Replacement (Rear) > Page 10694
4. Mark a reference point on the frame and old bushing at the 12 and 6 o'clock position to use to
alignment the new bushing.
5. Position the J-45725-1A (1) on the bushing (2). 6. Position the J-45725-2A (1) on the frame.
Important: Apply a small amount of grease on the threaded to lubricate the nuts when turning the
nuts.
7. Install the threaded rod, bearing and washers.
8. Adjust the nuts so that they are touching the J-45725-1A (2) and the J-45725-2A (1). 9. Install
the proper size wrenches on the nuts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Differential Mount > Component
Information > Service and Repair > Differential Housing Support Bushing Replacement (Rear) > Page 10695
Important: In the following service procedure, use only HAND TOOLS when using the J-45725.
10. While holding the front wrench (1) rotate the rear wrench (2) to remove the bushing. 11.
Remove the special tools.
12. Remove the bushing from the frame.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Differential Mount > Component
Information > Service and Repair > Differential Housing Support Bushing Replacement (Rear) > Page 10696
Important: Failure to perform the following service procedure prior to the installation of the new
bushing, could cause premature failure of the bushing.
1. Before the installation of the new bushing, use a straight edge draw a line on the new bushing at
the 12 and 6 o'clock positions. Ensure that the
grooves (1) are at the 12 and 6 o'clock positions.
2. Position the new bushing so that the reference marks on the frame and the bushing are in
alignment. This will ensure that the new bushing will be
within the + or - 5° specification required for the proper alignment of the bushing.
Important: The following procedure is to temporarily hold the new bushing in place so that the
special tools can be installed for the proper installation. This is NOT to be used to install the
bushing.
3. Using a block of wood and a hammer, slightly tap the bushing into the frame. 4. Assemble the
threaded rod, bearings and washers as indicated in step 7 in the removal procedure.
5. Position the J-45725-2 (2) on the inside of the frame. 6. Position J-45725-2A (1) on the outside
of the frame. 7. Adjust the nuts so that they are touching the J-45725-2 (1) and the J-45725-2A (2).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Differential Mount > Component
Information > Service and Repair > Differential Housing Support Bushing Replacement (Rear) > Page 10697
8. While holding the front wrench (2) rotate the rear wrench (1) to install the bushing. 9. Remove
the special tools.
Notice: Refer to Fastener Notice.
10. Install the mounting bolt.
Tighten the bolt to 188 N.m (139 lb ft).
11. Install the rear differential assembly. 12. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Differential Mount > Component
Information > Service and Repair > Differential Housing Support Bushing Replacement (Rear) > Page 10698
Differential Mount: Service and Repair Differential Housing Support Bushing Replacement (Front )
Differential Housing Support Bushing Replacement (Front )
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Differential Mount > Component
Information > Service and Repair > Differential Housing Support Bushing Replacement (Rear) > Page 10699
Differential Mount: Service and Repair Differential Carrier Assembly Mount Replacement
Differential Carrier Assembly Mount Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Fluid - Differential > Component
Information > Service and Repair > Rear Axle Lubricant Level Inspection
Fluid - Differential: Service and Repair Rear Axle Lubricant Level Inspection
Rear Axle Lubricant Level Inspection
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Fluid - Differential > Component
Information > Service and Repair > Rear Axle Lubricant Level Inspection > Page 10704
Fluid - Differential: Service and Repair Rear Axle Lubricant Replacement
Rear Axle Lubricant Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Pinion Flange, Differential >
Component Information > Service and Repair
Pinion Flange: Service and Repair
Drive Pinion Flange/Yoke and/or Oil Seal Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Relays and Modules - Differential >
Control Unit, Differential Lock > Component Information > Service and Repair
Control Unit: Service and Repair
Rear Differential Clutch Control Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Seals and Gaskets, Differential >
System Information > Service and Repair > Differential Carrier Cover and Seal Replacement - Left Side
Seals and Gaskets: Service and Repair Differential Carrier Cover and Seal Replacement - Left
Side
Differential Carrier Cover and Seal Replacement - Left Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Differential Assembly > Seals and Gaskets, Differential >
System Information > Service and Repair > Differential Carrier Cover and Seal Replacement - Left Side > Page 10716
Seals and Gaskets: Service and Repair Drive Pinion Flange/Yoke and/or Oil Seal Replacement
Drive Pinion Flange/Yoke and/or Oil Seal Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement
Constant Velocity Joint: Service and Repair Front Wheel Drive Shaft Inner Joint and Seal
Replacement
Front Wheel Drive Shaft Inner Joint and Seal Replacement
Tools Required
J 35910 Drive Axle Seal Clamp Pliers
Disassembly Procedure
1. Position wheel drive shaft bar in a soft jawed vise and clamp securely. 2. Using side cutters,
remove and discard the small seal clamp.
3. Remove large seal retaining clamp using a flat-bladed tool and discard the clamp.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10723
4. Separate the seal from the tripot housing at the large diameter and slide the seal away from the
joint along the axle shaft. 5. Wipe the excess grease from the face of the tripot spider and the
inside of the tripot housing. 6. Remove the tripot housing from the spider and shaft.
7. Remove the retaining ring from the groove on the wheel drive shaft bar and remove the spider
assembly. 8. Remove the seal from the wheel drive shaft bar. 9. Thoroughly clean all parts with a
suitable solvent, removing all traces of grease and contaminants.
10. Dry all parts with compressed air. 11. Inspect the tripot joint components for unusual wear,
cracks, and other damage. Replace any damaged components.
Assembly Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10724
1. Install the small seal clamp to the seal. Do not crimp the clamp. 2. Slide the inner seal onto the
wheel drive shaft bar and locate the lip of the seal groove on the wheel drive shaft bar.
Important: Ensure the seal clamp is positioned correctly in the seal groove.
3. Using the J 35910, crimp the small seal clamp. 4. Measure the clamp gap width.
Clamp gap width should not exceed 2.15 mm (0.85 in).
5. Install the tripot spider assembly to the wheel drive shaft bar, until seated against shoulder. 6.
Install the retaining ring in the groove of the wheel drive shaft bar with suitable pliers. 7. Place
approximately half of the grease in the kit to the seal and place the remainder in the tripot housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10725
8. Install the large clamp over the large diameter of the seal. 9. Install the tripot housing to the tripot
spider assembly on the wheel drive shaft bar.
10. Slide the large diameter of the seal over the outside of the tripot housing and position the lip of
the seal in the housing groove.
11. Place the large seal retaining clamp around the seal and close using J 35910. 12. Inspect the
gap dimension on the clamp ear. Continue tightening until the gap dimension is reached.
Dimension equals 1.9 mm (5/64 in).
13. Rotate the housing in a circular motion to distribute the grease in the tripot joint.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10726
Constant Velocity Joint: Service and Repair Rear Wheel Drive Shaft Inner Joint and Seal
Replacement
Rear Wheel Drive Shaft Inner Joint and Seal Replacement
Tools Required
J 35910 Drive Axle Seal Clamp Pliers
Disassembly Procedure
1. Position wheel drive shaft bar in a soft jawed vise and clamp securely. 2. Using side cutters,
remove and discard the small seal clamp.
3. Remove large seal retaining clamp using a flat-bladed tool and discard the clamp.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10727
4. Separate the seal from the tripot housing at the large diameter and slide the seal away from the
joint along the axle shaft. 5. Wipe the excess grease from the face of the tripot spider and the
inside of the tripot housing. 6. Remove the tripot housing from the spider and shaft.
7. Remove the retaining ring from the groove on the wheel drive shaft bar and remove the spider
assembly. 8. Remove the seal from the wheel drive shaft bar. 9. Thoroughly clean all parts with a
suitable solvent, removing all traces of grease and contaminants.
10. Dry all parts with compressed air. 11. Inspect the tripot joint components for unusual wear,
cracks, and other damage. Replace any damaged components.
Assembly Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10728
1. Install the small seal clamp to the seal. Do not crimp the clamp. 2. Slide the inner seal onto the
wheel drive shaft bar and locate the lip of the seal groove on the wheel drive shaft bar.
Important: Ensure the seal clamp is positioned correctly in the seal groove.
3. Using the J 35910, crimp the small seal clamp. 4. Measure the clamp gap width.
Clamp gap width should not exceed 2.15 mm (0.85 in).
5. Install the tripot spider assembly to the wheel drive shaft bar, until seated against shoulder. 6.
Install the retaining ring in the groove of the wheel drive shaft bar. 7. Place approximately half of
the grease in the kit to the seal and place the remainder in the tripot housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10729
8. Install the large clamp over the large diameter of the seal. 9. Install the tripot housing to the tripot
spider assembly on the wheel drive shaft bar.
10. Slide the large diameter of the seal over the outside of the tripot housing and position the lip of
the seal in the housing groove.
11. Place the large seal retaining clamp around the seal and close using J 35910. 12. Inspect the
gap dimension on the clamp ear. Continue tightening until the gap dimension is reached.
Dimension equals 1.9 mm (5/64 in).
13. Rotate the housing in a circular motion to distribute the grease in the tripot joint.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10730
Constant Velocity Joint: Service and Repair Front Wheel Drive Shaft Outer Joint and Seal
Replacement
Front Wheel Drive Shaft Outer Joint and Seal Replacement
Tools Required
J 35910 Drive Axle Seal Clamp Pliers
Disassembly Procedure
1. Clamp the drive axle shaft in a soft jawed vice.
2. Use a flat-bladed tool and disengage the retaining tabs of the large seal clamp. 3. Discard the
clamp. 4. Remove the small seal clamp using side cutters and discard the clamp. 5. Separate the
constant velocity (CV) joint boot from the CV joint race at the large diameter. 6. Slide the boot away
from the joint along the wheel drive shaft bar.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10731
7. Wipe the excess grease from the face of the CV inner race.
8. Place a block of wood against the CV joint outer race and carefully tap on the CV joint to remove
it from the wheel drive shaft bar. 9. Remove the seal from the wheel drive shaft bar.
10. Remove the CV joint retaining ring from the wheel drive shaft bar.
11. Place a brass drift against the CV joint inner race (1). 12. Tap gently on the brass drift with a
hammer in order to tilt the joint race.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10732
13. Remove the first bearing roller (2) when the CV race tilts. 14. Repeating the steps above, tilt the
CV joint inner race in the opposite direction to remove the opposing bearing roller. 15. Repeat the
process to remove all 6 of the bearing rollers.
16. Pivot the CV joint cage (4) and the inner race 90 degrees to the centerline of the outer race (2).
At the same time, align the cage windows (3) with
the lands of the outer race.
17. Lift out the cage (4) and the inner race.
18. Remove the inner race (1) from the cage (2) by rotating the inner race upward. 19. Clean the
following items thoroughly with a suitable solvent. Remove all traces of grease and contaminants.
* The inner and outer race assemblies.
* The CV joint cage.
* The bearing rollers.
20. Dry all the parts with compressed air. 21. Inspect the CV joint assembly for the following:
* Unusual wear
* Cracks
* Damage
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10733
22. Replace any damaged parts. 23. Clean the wheel drive shaft bar. Use a wire brush to remove
any rust in the seal mounting grooves.
Installation Procedure
1. Install the new small seal clamp (2) on the neck of the outboard seal (1). Do not clamp. 2. Slide
the outboard seal onto the wheel drive shaft bar and position the neck of the outboard seal in the
seal groove on the bar. The largest groove
below the sight groove on the wheel drive shaft bar is the seal groove seal (3).
Important: Ensure that the seal clamp is properly positioned around the entire circumference of the
seal.
3. Crimp the seal clamp using the J 35910. 4. Measure the clamp end gap dimension. The gap
should not exceed 2.15 mm (0.85 in).
The gap should not exceed 2.15 mm (0.85 in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10734
5. Put a light coat of grease from the service kit on the bearing roller grooves of the inner race and
outer race. 6. Hold the inner race 90 degrees to centerline of cage with the lands of the inner race
(1) aligned with the windows of the cage (2) and insert the
inner race into the cage.
7. Hold the cage and inner race 90 degrees to the center line of the outer race (1) and align the
cage windows (3) with the lands of the outer race.
Important: Be sure that the retaining ring side of the inner race faces the wheel drive shaft bar.
8. Place the cage and the inner race into the outer race. 9. Insert the first bearing roller, then tilt the
cage to insert every other bearing roller.
10. Repeat this process until all 6 bearing rollers are in place. 11. Install the CV joint retaining ring
to the wheel drive shaft bar. 12. Place approximately half the grease from the service kit inside the
outboard seal and pack the CV joint with the remaining grease.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10735
13. Place a block of wood against the CV joint spindle and tap on the block of wood until the CV
joint inner race engages the retaining ring. 14. Slide the large diameter of the seal over the outside
of the CV race and locate the lip of the seal in the housing groove. 15. Install the large seal
retaining clamp over the seal and close using the J 35910 16. Inspect the gap dimension on the
clamp ear. Continue tightening until the gap dimension is reached.
Dimension equals 1.9 mm (5/64 in).
17. Remove the wheel drive shaft from the bench vise. 18. Distribute the grease within the outer
CV joint by rotating the joint in a circular motion four to five times.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10736
Constant Velocity Joint: Service and Repair Rear Wheel Drive Shaft Outer Joint and Seal
Replacement
Rear Wheel Drive Shaft Outer Joint and Seal Replacement
Tools Required
J 35910 Drive Axle Seal Clamp Pliers
Disassembly Procedure
1. Clamp the drive axle shaft in a soft jawed vice.
2. Use a flat-bladed tool and disengage the retaining tabs of the large seal clamp. 3. Discard the
clamp. 4. Remove the small seal clamp using side cutters and discard the clamp. 5. Separate the
constant velocity (CV) joint boot from the CV joint race at the large diameter. 6. Slide the boot away
from the joint along the wheel drive shaft bar.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10737
7. Wipe the excess grease from the face of the CV inner race.
8. Place a block of wood against the CV joint outer race and carefully tap on the CV joint to remove
it from the wheel drive shaft bar. 9. Remove the seal from the wheel drive shaft bar.
10. Remove the CV joint retaining ring from the wheel drive shaft bar.
11. Place a brass drift against the CV joint inner race (1). 12. Tap gently on the brass drift with a
hammer in order to tilt the joint race.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10738
13. Remove the first bearing roller (2) when the CV race tilts. 14. Tilt the CV joint inner race in the
opposite direction to remove the opposing bearing roller. 15. Repeat the process to remove all 6 of
the bearing rollers.
16. Pivot the CV joint cage (4) and the inner race 90 degrees to the centerline of the outer race (2).
At the same time, align the cage windows (3) with
the lands of the outer race.
17. Lift out the cage (4) and the inner race.
18. Remove the inner race (1) from the cage (2) by rotating the inner race upward. 19. Clean the
following items thoroughly with a suitable solvent. Remove all traces of grease and contaminants.
* The inner and outer race assemblies
* The CV joint cage
* The bearing rollers
20. Dry all the parts with compressed air. 21. Inspect the CV joint assembly for the following:
* Unusual wear
* Cracks
* Damage
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10739
22. Replace any damaged parts. 23. Clean the wheel drive shaft bar. Use a wire brush to remove
any rust in the seal mounting grooves.
Installation Procedure
1. Install the new small seal clamp (2) on the neck of the outboard seal (1). Do not clamp. 2. Slide
the outboard seal onto the wheel drive shaft bar and position the neck of the outboard seal in the
seal groove on the bar. The largest groove
below the sight groove on the wheel drive shaft bar is the seal groove seal (3).
Important: Ensure that the seal clamp is properly positioned around the entire circumference of the
seal.
3. Crimp the seal clamp using the J 35910. 4. Measure the clamp end gap dimension. The gap
should not exceed 2.15 mm (0.85 in).
The gap should not exceed 2.15 mm (0.85 in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10740
5. Put a light coat of grease from the service kit on the bearing roller grooves of the inner race and
outer race. 6. Hold the inner race 90 degrees to centerline of cage with the lands of the inner race
(1) aligned with the windows of the cage (2) and insert the
inner race into the cage.
7. Hold the cage and inner race 90 degrees to the center line of the outer race (1) and align the
cage windows (3) with the lands of the outer race.
Important: Be sure that the retaining ring side of the inner race faces the wheel drive shaft bar.
8. Place the cage and the inner race into the outer race. 9. Insert the first bearing roller, then tilt the
cage in the opposite direction to insert the opposing bearing roller.
10. Repeat this process until all 6 bearing rollers are in place. 11. Using pliers, install the CV joint
retaining ring to the wheel drive shaft bar. 12. Place approximately half the grease from the service
kit inside the outboard seal and pack the CV joint with the remaining grease.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10741
13. Place a block of wood against the CV joint spindle and tap on the block of wood until the CV
joint inner race engages the retaining ring. 14. Slide the large diameter of the seal over the outside
of the CV race and locate the lip of the seal in the housing groove. 15. Instal the large seal
retaining clamp over the seal and close using the J 35910. 16. Inspect the gap dimension on the
clamp ear. Continue tightening until the gap dimension is reached.
Dimension equals 1.9 mm (5/64 in).
17. Remove the wheel drive shaft from the bench vise. 18. Distribute the grease within the outer
CV joint by rotating the joint in a circular motion 4 to 5 times.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement
Constant Velocity Joint Boot: Service and Repair Front Wheel Drive Shaft Inner Joint and Seal
Replacement
Front Wheel Drive Shaft Inner Joint and Seal Replacement
Tools Required
J 35910 Drive Axle Seal Clamp Pliers
Disassembly Procedure
1. Position wheel drive shaft bar in a soft jawed vise and clamp securely. 2. Using side cutters,
remove and discard the small seal clamp.
3. Remove large seal retaining clamp using a flat-bladed tool and discard the clamp.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10746
4. Separate the seal from the tripot housing at the large diameter and slide the seal away from the
joint along the axle shaft. 5. Wipe the excess grease from the face of the tripot spider and the
inside of the tripot housing. 6. Remove the tripot housing from the spider and shaft.
7. Remove the retaining ring from the groove on the wheel drive shaft bar and remove the spider
assembly. 8. Remove the seal from the wheel drive shaft bar. 9. Thoroughly clean all parts with a
suitable solvent, removing all traces of grease and contaminants.
10. Dry all parts with compressed air. 11. Inspect the tripot joint components for unusual wear,
cracks, and other damage. Replace any damaged components.
Assembly Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10747
1. Install the small seal clamp to the seal. Do not crimp the clamp. 2. Slide the inner seal onto the
wheel drive shaft bar and locate the lip of the seal groove on the wheel drive shaft bar.
Important: Ensure the seal clamp is positioned correctly in the seal groove.
3. Using the J 35910, crimp the small seal clamp. 4. Measure the clamp gap width.
Clamp gap width should not exceed 2.15 mm (0.85 in).
5. Install the tripot spider assembly to the wheel drive shaft bar, until seated against shoulder. 6.
Install the retaining ring in the groove of the wheel drive shaft bar with suitable pliers. 7. Place
approximately half of the grease in the kit to the seal and place the remainder in the tripot housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10748
8. Install the large clamp over the large diameter of the seal. 9. Install the tripot housing to the tripot
spider assembly on the wheel drive shaft bar.
10. Slide the large diameter of the seal over the outside of the tripot housing and position the lip of
the seal in the housing groove.
11. Place the large seal retaining clamp around the seal and close using J 35910. 12. Inspect the
gap dimension on the clamp ear. Continue tightening until the gap dimension is reached.
Dimension equals 1.9 mm (5/64 in).
13. Rotate the housing in a circular motion to distribute the grease in the tripot joint.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10749
Constant Velocity Joint Boot: Service and Repair Rear Wheel Drive Shaft Inner Joint and Seal
Replacement
Rear Wheel Drive Shaft Inner Joint and Seal Replacement
Tools Required
J 35910 Drive Axle Seal Clamp Pliers
Disassembly Procedure
1. Position wheel drive shaft bar in a soft jawed vise and clamp securely. 2. Using side cutters,
remove and discard the small seal clamp.
3. Remove large seal retaining clamp using a flat-bladed tool and discard the clamp.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10750
4. Separate the seal from the tripot housing at the large diameter and slide the seal away from the
joint along the axle shaft. 5. Wipe the excess grease from the face of the tripot spider and the
inside of the tripot housing. 6. Remove the tripot housing from the spider and shaft.
7. Remove the retaining ring from the groove on the wheel drive shaft bar and remove the spider
assembly. 8. Remove the seal from the wheel drive shaft bar. 9. Thoroughly clean all parts with a
suitable solvent, removing all traces of grease and contaminants.
10. Dry all parts with compressed air. 11. Inspect the tripot joint components for unusual wear,
cracks, and other damage. Replace any damaged components.
Assembly Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10751
1. Install the small seal clamp to the seal. Do not crimp the clamp. 2. Slide the inner seal onto the
wheel drive shaft bar and locate the lip of the seal groove on the wheel drive shaft bar.
Important: Ensure the seal clamp is positioned correctly in the seal groove.
3. Using the J 35910, crimp the small seal clamp. 4. Measure the clamp gap width.
Clamp gap width should not exceed 2.15 mm (0.85 in).
5. Install the tripot spider assembly to the wheel drive shaft bar, until seated against shoulder. 6.
Install the retaining ring in the groove of the wheel drive shaft bar. 7. Place approximately half of
the grease in the kit to the seal and place the remainder in the tripot housing.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10752
8. Install the large clamp over the large diameter of the seal. 9. Install the tripot housing to the tripot
spider assembly on the wheel drive shaft bar.
10. Slide the large diameter of the seal over the outside of the tripot housing and position the lip of
the seal in the housing groove.
11. Place the large seal retaining clamp around the seal and close using J 35910. 12. Inspect the
gap dimension on the clamp ear. Continue tightening until the gap dimension is reached.
Dimension equals 1.9 mm (5/64 in).
13. Rotate the housing in a circular motion to distribute the grease in the tripot joint.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10753
Constant Velocity Joint Boot: Service and Repair Front Wheel Drive Shaft Outer Joint and Seal
Replacement
Front Wheel Drive Shaft Outer Joint and Seal Replacement
Tools Required
J 35910 Drive Axle Seal Clamp Pliers
Disassembly Procedure
1. Clamp the drive axle shaft in a soft jawed vice.
2. Use a flat-bladed tool and disengage the retaining tabs of the large seal clamp. 3. Discard the
clamp. 4. Remove the small seal clamp using side cutters and discard the clamp. 5. Separate the
constant velocity (CV) joint boot from the CV joint race at the large diameter. 6. Slide the boot away
from the joint along the wheel drive shaft bar.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10754
7. Wipe the excess grease from the face of the CV inner race.
8. Place a block of wood against the CV joint outer race and carefully tap on the CV joint to remove
it from the wheel drive shaft bar. 9. Remove the seal from the wheel drive shaft bar.
10. Remove the CV joint retaining ring from the wheel drive shaft bar.
11. Place a brass drift against the CV joint inner race (1). 12. Tap gently on the brass drift with a
hammer in order to tilt the joint race.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10755
13. Remove the first bearing roller (2) when the CV race tilts. 14. Repeating the steps above, tilt the
CV joint inner race in the opposite direction to remove the opposing bearing roller. 15. Repeat the
process to remove all 6 of the bearing rollers.
16. Pivot the CV joint cage (4) and the inner race 90 degrees to the centerline of the outer race (2).
At the same time, align the cage windows (3) with
the lands of the outer race.
17. Lift out the cage (4) and the inner race.
18. Remove the inner race (1) from the cage (2) by rotating the inner race upward. 19. Clean the
following items thoroughly with a suitable solvent. Remove all traces of grease and contaminants.
* The inner and outer race assemblies.
* The CV joint cage.
* The bearing rollers.
20. Dry all the parts with compressed air. 21. Inspect the CV joint assembly for the following:
* Unusual wear
* Cracks
* Damage
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10756
22. Replace any damaged parts. 23. Clean the wheel drive shaft bar. Use a wire brush to remove
any rust in the seal mounting grooves.
Installation Procedure
1. Install the new small seal clamp (2) on the neck of the outboard seal (1). Do not clamp. 2. Slide
the outboard seal onto the wheel drive shaft bar and position the neck of the outboard seal in the
seal groove on the bar. The largest groove
below the sight groove on the wheel drive shaft bar is the seal groove seal (3).
Important: Ensure that the seal clamp is properly positioned around the entire circumference of the
seal.
3. Crimp the seal clamp using the J 35910. 4. Measure the clamp end gap dimension. The gap
should not exceed 2.15 mm (0.85 in).
The gap should not exceed 2.15 mm (0.85 in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10757
5. Put a light coat of grease from the service kit on the bearing roller grooves of the inner race and
outer race. 6. Hold the inner race 90 degrees to centerline of cage with the lands of the inner race
(1) aligned with the windows of the cage (2) and insert the
inner race into the cage.
7. Hold the cage and inner race 90 degrees to the center line of the outer race (1) and align the
cage windows (3) with the lands of the outer race.
Important: Be sure that the retaining ring side of the inner race faces the wheel drive shaft bar.
8. Place the cage and the inner race into the outer race. 9. Insert the first bearing roller, then tilt the
cage to insert every other bearing roller.
10. Repeat this process until all 6 bearing rollers are in place. 11. Install the CV joint retaining ring
to the wheel drive shaft bar. 12. Place approximately half the grease from the service kit inside the
outboard seal and pack the CV joint with the remaining grease.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10758
13. Place a block of wood against the CV joint spindle and tap on the block of wood until the CV
joint inner race engages the retaining ring. 14. Slide the large diameter of the seal over the outside
of the CV race and locate the lip of the seal in the housing groove. 15. Install the large seal
retaining clamp over the seal and close using the J 35910 16. Inspect the gap dimension on the
clamp ear. Continue tightening until the gap dimension is reached.
Dimension equals 1.9 mm (5/64 in).
17. Remove the wheel drive shaft from the bench vise. 18. Distribute the grease within the outer
CV joint by rotating the joint in a circular motion four to five times.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10759
Constant Velocity Joint Boot: Service and Repair Rear Wheel Drive Shaft Outer Joint and Seal
Replacement
Rear Wheel Drive Shaft Outer Joint and Seal Replacement
Tools Required
J 35910 Drive Axle Seal Clamp Pliers
Disassembly Procedure
1. Clamp the drive axle shaft in a soft jawed vice.
2. Use a flat-bladed tool and disengage the retaining tabs of the large seal clamp. 3. Discard the
clamp. 4. Remove the small seal clamp using side cutters and discard the clamp. 5. Separate the
constant velocity (CV) joint boot from the CV joint race at the large diameter. 6. Slide the boot away
from the joint along the wheel drive shaft bar.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10760
7. Wipe the excess grease from the face of the CV inner race.
8. Place a block of wood against the CV joint outer race and carefully tap on the CV joint to remove
it from the wheel drive shaft bar. 9. Remove the seal from the wheel drive shaft bar.
10. Remove the CV joint retaining ring from the wheel drive shaft bar.
11. Place a brass drift against the CV joint inner race (1). 12. Tap gently on the brass drift with a
hammer in order to tilt the joint race.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10761
13. Remove the first bearing roller (2) when the CV race tilts. 14. Tilt the CV joint inner race in the
opposite direction to remove the opposing bearing roller. 15. Repeat the process to remove all 6 of
the bearing rollers.
16. Pivot the CV joint cage (4) and the inner race 90 degrees to the centerline of the outer race (2).
At the same time, align the cage windows (3) with
the lands of the outer race.
17. Lift out the cage (4) and the inner race.
18. Remove the inner race (1) from the cage (2) by rotating the inner race upward. 19. Clean the
following items thoroughly with a suitable solvent. Remove all traces of grease and contaminants.
* The inner and outer race assemblies
* The CV joint cage
* The bearing rollers
20. Dry all the parts with compressed air. 21. Inspect the CV joint assembly for the following:
* Unusual wear
* Cracks
* Damage
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10762
22. Replace any damaged parts. 23. Clean the wheel drive shaft bar. Use a wire brush to remove
any rust in the seal mounting grooves.
Installation Procedure
1. Install the new small seal clamp (2) on the neck of the outboard seal (1). Do not clamp. 2. Slide
the outboard seal onto the wheel drive shaft bar and position the neck of the outboard seal in the
seal groove on the bar. The largest groove
below the sight groove on the wheel drive shaft bar is the seal groove seal (3).
Important: Ensure that the seal clamp is properly positioned around the entire circumference of the
seal.
3. Crimp the seal clamp using the J 35910. 4. Measure the clamp end gap dimension. The gap
should not exceed 2.15 mm (0.85 in).
The gap should not exceed 2.15 mm (0.85 in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10763
5. Put a light coat of grease from the service kit on the bearing roller grooves of the inner race and
outer race. 6. Hold the inner race 90 degrees to centerline of cage with the lands of the inner race
(1) aligned with the windows of the cage (2) and insert the
inner race into the cage.
7. Hold the cage and inner race 90 degrees to the center line of the outer race (1) and align the
cage windows (3) with the lands of the outer race.
Important: Be sure that the retaining ring side of the inner race faces the wheel drive shaft bar.
8. Place the cage and the inner race into the outer race. 9. Insert the first bearing roller, then tilt the
cage in the opposite direction to insert the opposing bearing roller.
10. Repeat this process until all 6 bearing rollers are in place. 11. Using pliers, install the CV joint
retaining ring to the wheel drive shaft bar. 12. Place approximately half the grease from the service
kit inside the outboard seal and pack the CV joint with the remaining grease.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Axle Shaft Assembly >
Constant Velocity Joint Boot > Component Information > Service and Repair > Front Wheel Drive Shaft Inner Joint and Seal
Replacement > Page 10764
13. Place a block of wood against the CV joint spindle and tap on the block of wood until the CV
joint inner race engages the retaining ring. 14. Slide the large diameter of the seal over the outside
of the CV race and locate the lip of the seal in the housing groove. 15. Instal the large seal
retaining clamp over the seal and close using the J 35910. 16. Inspect the gap dimension on the
clamp ear. Continue tightening until the gap dimension is reached.
Dimension equals 1.9 mm (5/64 in).
17. Remove the wheel drive shaft from the bench vise. 18. Distribute the grease within the outer
CV joint by rotating the joint in a circular motion 4 to 5 times.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Technical Service Bulletins > Customer Interest for Seals and Gaskets: > 08-07-30-009B >
May > 08 > A/T - 4T80E, Slips in Gear/L/H Axle Seal Leaks
Seals and Gaskets: Customer Interest A/T - 4T80E, Slips in Gear/L/H Axle Seal Leaks
TECHNICAL
Bulletin No.: 08-07-30-009B
Date: May 01, 2008
Subject: HYDRA-MATIC(R) Front Wheel Drive 4T80-E (MH1) Left Front Axle Seal Leak,
Transmission Slips in Gear (Replace Third Clutch Housing with Revised Service Part)
Models: 2001-2008 GM Passenger Cars
with HYDRA-MATIC(R) Front Wheel Drive 4T80-E Automatic Transmission (RPO - MH1)
Supercede:
This bulletin is being updated to revise the Warranty Information. Please discard Corporate Bulletin
Number 08-07-30-009A (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak and/or that the transmission slips in
gear.
Cause
An oil leak may be caused by bushing wear in the third clutch housing, causing excessive fluid
build-up at axe sea.
Correction
Important:
DO NOT replace the transmission for above concerns.
Replace the third clutch housing with service P/N 8682114, which has revised bushing material to
extend life and reduce left front axle seal leaks. Refer to Automatic/Transaxle - 4T80-E
Transmission Off-Vehicle Repair Instructions for the replacement of the third clutch housing in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Technical Service Bulletins > All Technical Service Bulletins for Seals and Gaskets: >
08-07-30-009B > May > 08 > A/T - 4T80E, Slips in Gear/L/H Axle Seal Leaks
Seals and Gaskets: All Technical Service Bulletins A/T - 4T80E, Slips in Gear/L/H Axle Seal Leaks
TECHNICAL
Bulletin No.: 08-07-30-009B
Date: May 01, 2008
Subject: HYDRA-MATIC(R) Front Wheel Drive 4T80-E (MH1) Left Front Axle Seal Leak,
Transmission Slips in Gear (Replace Third Clutch Housing with Revised Service Part)
Models: 2001-2008 GM Passenger Cars
with HYDRA-MATIC(R) Front Wheel Drive 4T80-E Automatic Transmission (RPO - MH1)
Supercede:
This bulletin is being updated to revise the Warranty Information. Please discard Corporate Bulletin
Number 08-07-30-009A (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak and/or that the transmission slips in
gear.
Cause
An oil leak may be caused by bushing wear in the third clutch housing, causing excessive fluid
build-up at axe sea.
Correction
Important:
DO NOT replace the transmission for above concerns.
Replace the third clutch housing with service P/N 8682114, which has revised bushing material to
extend life and reduce left front axle seal leaks. Refer to Automatic/Transaxle - 4T80-E
Transmission Off-Vehicle Repair Instructions for the replacement of the third clutch housing in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Technical Service Bulletins > All Technical Service Bulletins for Seals and Gaskets: > Page
10778
Seals and Gaskets: By Symptom
Technical Service Bulletin # 08-07-30-009B Date: 080501
A/T - 4T80E, Slips in Gear/L/H Axle Seal Leaks
TECHNICAL
Bulletin No.: 08-07-30-009B
Date: May 01, 2008
Subject: HYDRA-MATIC(R) Front Wheel Drive 4T80-E (MH1) Left Front Axle Seal Leak,
Transmission Slips in Gear (Replace Third Clutch Housing with Revised Service Part)
Models: 2001-2008 GM Passenger Cars
with HYDRA-MATIC(R) Front Wheel Drive 4T80-E Automatic Transmission (RPO - MH1)
Supercede:
This bulletin is being updated to revise the Warranty Information. Please discard Corporate Bulletin
Number 08-07-30-009A (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak and/or that the transmission slips in
gear.
Cause
An oil leak may be caused by bushing wear in the third clutch housing, causing excessive fluid
build-up at axe sea.
Correction
Important:
DO NOT replace the transmission for above concerns.
Replace the third clutch housing with service P/N 8682114, which has revised bushing material to
extend life and reduce left front axle seal leaks. Refer to Automatic/Transaxle - 4T80-E
Transmission Off-Vehicle Repair Instructions for the replacement of the third clutch housing in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Technical Service Bulletin # 08-07-30-009B Date: 080501
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Technical Service Bulletins > All Technical Service Bulletins for Seals and Gaskets: > Page
10779
A/T - 4T80E, Slips in Gear/L/H Axle Seal Leaks
TECHNICAL
Bulletin No.: 08-07-30-009B
Date: May 01, 2008
Subject: HYDRA-MATIC(R) Front Wheel Drive 4T80-E (MH1) Left Front Axle Seal Leak,
Transmission Slips in Gear (Replace Third Clutch Housing with Revised Service Part)
Models: 2001-2008 GM Passenger Cars
with HYDRA-MATIC(R) Front Wheel Drive 4T80-E Automatic Transmission (RPO - MH1)
Supercede:
This bulletin is being updated to revise the Warranty Information. Please discard Corporate Bulletin
Number 08-07-30-009A (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak and/or that the transmission slips in
gear.
Cause
An oil leak may be caused by bushing wear in the third clutch housing, causing excessive fluid
build-up at axe sea.
Correction
Important:
DO NOT replace the transmission for above concerns.
Replace the third clutch housing with service P/N 8682114, which has revised bushing material to
extend life and reduce left front axle seal leaks. Refer to Automatic/Transaxle - 4T80-E
Transmission Off-Vehicle Repair Instructions for the replacement of the third clutch housing in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Technical Service Bulletin # 08-07-30-009B Date: 080501
A/T - 4T80E, Slips in Gear/L/H Axle Seal Leaks
TECHNICAL
Bulletin No.: 08-07-30-009B
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Technical Service Bulletins > All Technical Service Bulletins for Seals and Gaskets: > Page
10780
Date: May 01, 2008
Subject: HYDRA-MATIC(R) Front Wheel Drive 4T80-E (MH1) Left Front Axle Seal Leak,
Transmission Slips in Gear (Replace Third Clutch Housing with Revised Service Part)
Models: 2001-2008 GM Passenger Cars
with HYDRA-MATIC(R) Front Wheel Drive 4T80-E Automatic Transmission (RPO - MH1)
Supercede:
This bulletin is being updated to revise the Warranty Information. Please discard Corporate Bulletin
Number 08-07-30-009A (Section 07 - Transmission/Transaxle).
Condition
Some customers may comment on a transmission oil leak and/or that the transmission slips in
gear.
Cause
An oil leak may be caused by bushing wear in the third clutch housing, causing excessive fluid
build-up at axe sea.
Correction
Important:
DO NOT replace the transmission for above concerns.
Replace the third clutch housing with service P/N 8682114, which has revised bushing material to
extend life and reduce left front axle seal leaks. Refer to Automatic/Transaxle - 4T80-E
Transmission Off-Vehicle Repair Instructions for the replacement of the third clutch housing in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Service and Repair > Rear Axle Shaft Seal Replacement - Left Side
Seals and Gaskets: Service and Repair Rear Axle Shaft Seal Replacement - Left Side
Rear Axle Shaft Seal Replacement - Left Side
Special Tools
* J 8092 Driver Handle
* J 33832 Rear Bearing Installer
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Drain the rear differential. Refer to
Rear Axle Lubricant Replacement. 3. Remove the exhaust system. 4. Remove the spare tire.
Important: In the following service procedure, it is not necessary to completely remove the propeller
shaft. Relocate the propeller shaft to the side and secure with mechanics wire or equivalent.
5. Remove the propeller shaft. 6. Remove the left rear wheel drive shaft. 7. Support rear differential
with a transmission jack stand.
8. Remove the left rear differential support bushing bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Service and Repair > Rear Axle Shaft Seal Replacement - Left Side > Page 10783
9. Remove the left differential mount (1).
10. Remove the right differential support bushing nut (2). 11. Lower the differential to gain access
to the axle shaft seal.
12. Using the appropriate tool, remove the axle shaft seal (1).
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Service and Repair > Rear Axle Shaft Seal Replacement - Left Side > Page 10784
1. Install the J 8092 to the J 33832. 2. Using the J 8092 and the J 33832, install the axle shaft seal
(1). 3. Lift and position the differential in the rear cradle.
4. Install the left rear support bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Service and Repair > Rear Axle Shaft Seal Replacement - Left Side > Page 10785
5. Install right differential support bushing nut (2). 6. Install the left differential mount (1). 7. Remove
the transmission jack stand. 8. Install the left rear wheel drive shaft. 9. Install the propeller shaft.
10. Install the exhaust system. 11. Remove the spare tire. 12. Fill the rear differential with fluid.
Refer to Rear Axle Lubricant Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Service and Repair > Rear Axle Shaft Seal Replacement - Left Side > Page 10786
Seals and Gaskets: Service and Repair Rear Axle Shaft Seal Replacement - Right Side
Rear Axle Shaft Seal Replacement - Right Side
Special Tools
* J 8092 Driver Handle
* J 33832 Rear Bearing Installer
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Drain the rear differential. Refer to
Rear Axle Lubricant Replacement. 3. Remove the exhaust system. 4. Remove the spare tire.
Important: In the following service procedure, it is not necessary to completely remove the propeller
shaft. Relocate the propeller shaft to the side and secure with mechanics wire or equivalent.
5. Remove the propeller shaft. 6. Remove the right rear wheel drive shaft. 7. Support rear
differential with a transmission jack stand.
8. Remove the right rear differential support bushing bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Service and Repair > Rear Axle Shaft Seal Replacement - Left Side > Page 10787
9. Remove the left differential mount (1).
10. Remove the right differential support bushing nut (2). 11. Lower the differential to gain access
to the axle shaft seal.
12. Using the appropriate tool, remove the axle shaft seal (1).
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Service and Repair > Rear Axle Shaft Seal Replacement - Left Side > Page 10788
1. Install the J 8092 to the J 33832. 2. Using the J 8092 and the J 33832, install the axle shaft seal
(1). 3. Lift and position the differential in the rear cradle.
4. Install the left rear support bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Seals and Gaskets, Drive
Axles > System Information > Service and Repair > Rear Axle Shaft Seal Replacement - Left Side > Page 10789
5. Install right differential support bushing nut (2). 6. Install the left differential mount (1). 7. Remove
the transmission jack stand. 8. Install the right rear wheel drive shaft. 9. Install the propeller shaft.
10. Install the exhaust system. 11. Remove the spare tire. 12. Fill the rear differential with fluid.
Refer to Rear Axle Lubricant Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Wheel Bearing >
Component Information > Testing and Inspection
Wheel Bearing: Testing and Inspection
Wheel Bearings Diagnosis
Step 1 - Step 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Wheel Bearing >
Component Information > Service and Repair > Front Suspension
Wheel Bearing: Service and Repair Front Suspension
Wheel Bearing/Hub Replacement - Front
Removal Procedure
1. Remove the front brake rotor.
2. Disconnect the wheel speed sensor electrical connector, if equipped.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Wheel Bearing >
Component Information > Service and Repair > Front Suspension > Page 10795
3. Remove the wheel speed sensor electrical connector form the connector bracket.
4. Remove the front wheel drive shaft spindle nut. 5. Remove the speed sensor.
6. Support the wheel drive shaft with heavy mechanic's wire or equivalent. 7. Remove and discard
the wheel bearing/hub mounting bolts. 8. Remove the wheel bearing/hub assembly from the
steering knuckle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Wheel Bearing >
Component Information > Service and Repair > Front Suspension > Page 10796
1. Install the wheel bearing/hub assembly to the steering knuckle.
Notice: Refer to Fastener Notice.
2. Install the wheel bearing/hub mounting bolts.
Tighten the bolts to 130 N.m (96 lb ft).
3. Install the wheel drive shaft spindle nut.
Tighten the nut to 205 N.m (151 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Wheel Bearing >
Component Information > Service and Repair > Front Suspension > Page 10797
4. Install the wheel speed sensor electrical connector to the mounting bracket, if equipped.
5. Connect the wheel speed sensor electrical connector. 6. Install the speed sensor.
7. Install the front brake rotor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Wheel Bearing >
Component Information > Service and Repair > Front Suspension > Page 10798
Wheel Bearing: Service and Repair Rear Suspension
Wheel Bearing/Hub Replacement - Rear
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Wheel Bearing >
Component Information > Service and Repair > Front Suspension > Page 10799
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive Axles, Bearings and Joints > Wheel Hub > Axle Nut >
Component Information > Specifications
Axle Nut: Specifications
Front Wheel Drive Shaft Spindle Nut
.........................................................................................................................................................
205 Nm 151 lb ft Rear Wheel Drive Shaft Spindle Nut
............................................................................................................................................................
110 Nm 81 lb ft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Center Support
> Component Information > Service and Repair
Center Support: Service and Repair
Propeller Shaft Center Support Bearing Replacement
Removal Procedure
Tools Required
* J 22912-B Split-Plate Bearing Puller
* J 45270 Universal Joint Remover/Installer
* J 44870 Yoke Installer
Notice: Never clamp propeller shaft tubing in a vise. Clamping propeller shaft tubing in a vise could
dent or deform the tube, causing an imbalance or unsafe condition. Always clamp on one end of
the yokes and support the shaft horizontally.
Important: Prior to disassembly, mark the positions of the driveshaft components relative to the
driveshaft tube. All components must be reassembled in the same relationship to maintain proper
balance.
1. Remove the snap rings.
1. Pinch the ends of the snap ring together with a pair of pliers. 2. If the snap ring does not readily
snap out of the groove in the yoke, tap the end of the bearing cup lightly in order to relieve pressure
from ring.
2. Remove the universal joint caps using J 45270. 3. Remove the front shaft half.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Center Support
> Component Information > Service and Repair > Page 10808
4. Remove the lock ring (1) from the groove. 5. Discard the lock ring.
6. Place J 22912-B on the splined yoke, as illustrated. 7. Using a press, remove the yoke.
8. Place J 22912-B behind the support bearing. 9. Place the shaft in a press; then, support J
22912-B and press off the support bearing.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Center Support
> Component Information > Service and Repair > Page 10809
1. Using J 44870, install the support bearing on the drive shaft until it seats firmly.
2. Align the splines on the shaft and the splines on the yoke. 3. Using J 44870, install the yoke (2)
on the drive shaft (1) until the lock ring groove is visible.
4. Install the lock ring (1) in the groove.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Center Support
> Component Information > Service and Repair > Page 10810
5. Install the universal joint caps and the retaining clips.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Specifications > Fastener Tightening Specifications
Drive/Propeller Shaft: Specifications Fastener Tightening Specifications
Fastener Tightening Specifications
Fastener Tightening Specifications
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Specifications > Fastener Tightening Specifications > Page 10815
Drive/Propeller Shaft: Specifications Sealers, Adhesives, and Lubricants
Sealers, Adhesives, and Lubricants
Sealers, Adhesives, And Lubricants
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Specifications > Page 10816
Drive/Propeller Shaft: Diagrams
Driveline Disassembled Views
Driveline Disassembled Views
1 - Front Shaft 2 - Front Mounting Bolt 3 - Washer 4 - Universal Joint 5 - Snap Ring 6 - Yoke 7 Center Support Bearing Bolt 8 - Center Support Bearing 9 - Rear Shaft 10 - Universal Joint 11 Rear Flange
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Specifications > Page 10817
Drive/Propeller Shaft: Description and Operation
Propeller Shaft Description and Operation
The propeller shaft assembly is a 2-piece design. The front shaft consists of a plunging A-type
constant velocity joint at the front and a universal joint and yoke at the rear.
The rear shaft consists of a center bearing and a center yoke, which are pressed onto the rear half
of the propshaft and retained by a snap ring. The front and rear shafts are joined together at the
yokes with a universal joint. The rear shaft attaches to the axle with a flange which is attached to
the rear shaft with a universal joint.
The center bearing provides support where the front and rear shafts mate and is bolted to the
underbody. The front constant velocity joint is bolted to the power take-off unit (PTU), and the rear
universal joint flange is bolted to the rear differential.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Testing and Inspection > Initial Inspection and Diagnostic Overview
Drive/Propeller Shaft: Initial Inspection and Diagnostic Overview
Diagnostic Starting Point - Propeller Shaft
Begin the system diagnosis by reviewing the following information:
* Propeller Shaft Description and Operation
* Transfer Case Description and Operation for the NVG 900 transfer case
Reviewing the description and operation information will help you to determine the correct symptom
diagnostic procedure when a malfunction exists. Reviewing the description and operation
information will also help you to determine if the condition described by the customer is normal
operation. Refer to Symptoms - Propeller Shaft to diagnose the system and locate the procedure.
See: Symptom Related Diagnostic Procedures/- Symptoms - Propeller Shaft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Testing and Inspection > Initial Inspection and Diagnostic Overview > Page 10820
Drive/Propeller Shaft: Symptom Related Diagnostic Procedures
- Symptoms - Propeller Shaft
Symptoms - Propeller Shaft
Strategy Based Diagnostics
Review the system operations in order to familiarize yourself with the system functions. Refer to
Propeller Shaft Description and Operation, Transfer Case Description and Operation for the
NVG900 transfer case, Differential Case General Description, and Differential Carrier Assembly
Description in this service data. All diagnosis on a vehicle should follow a logical process. Strategy
based diagnostics is a uniform approach for repairing all systems. The diagnostic flow may always
be used in order to resolve a system problem. The diagnostic flow is the place to start when repairs
are necessary. For a detailed explanation, refer to Strategy Based Diagnosis. See: Testing and
Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis
Visual/Physical Inspection
* Inspect for aftermarket devices which could affect the operation of the vehicle. Refer to Checking
Aftermarket Accessories in Diagnostic Aids. See: Testing and Inspection/Component Tests and
General Diagnostics
Important: The constant velocity (CV) joint is not serviceable. If the boot is torn or the joint is worn
or damaged, replace the propeller shaft as an assembly.
* Inspect the easily accessible or visible system components for obvious damage or conditions
which could cause the symptom. Inspect the CV joint boot for rips or cracks.
- Rotate the CV joint to inspect for binding.
- Inspect the CV joint for grease or oil leakage.
* Verify the exact operating conditions under which the concern exists. Note factors such as speed,
road conditions, ambient temperature, and other specifics.
* Compare the driving characteristics or sounds, if applicable, to a known good vehicle and make
sure you are not trying to correct a normal condition.
Intermittent
Test the vehicle under the same conditions that the customer reported in order to verify the system
is operating properly.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
* Roughness or Vibration
* Ping, Snap, or Click Noise
* Knock or Clunk Noise
* Scraping Noise
* Squeak Noise
* Shudder on Acceleration at Low Speed
Knock or Clunk Noise
Knock or Clunk Noise
Knock Or Clunk Noise
Ping, Snap, or Click Noise
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Testing and Inspection > Initial Inspection and Diagnostic Overview > Page 10821
Ping, Snap, or Click Noise
Ping, Snap, Or Click Noise
Roughness or Vibration
Roughness or Vibration
Roughness Or Vibration
Scraping Noise
Scraping Noise
Scraping Noise
Shudder on Acceleration at Low Speed
Shudder on Acceleration at Low Speed
Shudder On Acceleration At Low Speed
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Testing and Inspection > Initial Inspection and Diagnostic Overview > Page 10822
Squeak Noise
Squeak Noise
Squeak Noise
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Testing and Inspection > Page 10823
Drive/Propeller Shaft: Service and Repair
Propeller Shaft Replacement
Removal Procedure
1. Place a support under the propeller shaft at the rear drive module. 2. Place the transmission in
neutral. 3. Raise and support the vehicle. Refer to Vehicle Lifting. 4. Index mark the relationship of
the propeller shaft to the rear drive module flange.
5. Remove the bolts securing the propeller shaft yoke flange to the rear drive module flange.
6. Index mark the relationship of the propeller shaft to the power take-off unit (PTU) flange. 7. Place
a support under the propeller shaft at the PTU. 8. Remove the bolts securing the propeller shaft to
the PTU flange.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Testing and Inspection > Page 10824
9. Place a support under the propeller shaft at the support bearing.
10. Remove the bolts securing the propeller shaft support bearing to the vehicle underbody. 11.
While supporting the propeller shaft, move the propeller shaft rearward to disengage the constant
velocity joint from the PTU flange. 12. Remove the propeller shaft from the vehicle.
Installation Procedure
1. While supporting the front, center, and rear of the propeller shaft, install the propeller shaft to the
vehicle. 2. Thoroughly clean the center bearing to vehicle mounting bolts and apply thread locker,
Canadian P/N 10953488, to the bolt threads. 3. Install, but do not tighten, the support bearing
mounting bolts.
4. Pull the forward section of the propeller shaft rearward and install the propeller shaft to the PTU
flange.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Testing and Inspection > Page 10825
5. Align the index marks on the propeller shaft constant velocity joint and the PTU flange. 6.
Thoroughly clean the propeller shaft flange mounting bolts and apply threadlocker, Canadian P/N
10953488, to the bolt threads.
Notice: Refer to Fastener Notice.
7. Install the front propeller shaft mounting bolts.
Tighten the bolts to 50 N.m (37 lb ft).
8. Align the index marks on the propeller shaft yoke flange and the rear drive module flange and
install the propeller. 9. Thoroughly clean the yoke mounting bolts and apply threadlocker, Saturn
P/N 21005994 (Canadian P/N 10953488), to the bolt threads.
10. Install the bolts to the propeller shaft yoke and rear drive module flange.
Tighten the bolts to 50 N.m (37 lb ft).
11. Tighten the support bearing mounting bolts.
Tighten the bolts to 25 N.m (19 lb ft).
12. Remove the support stands from the propeller shaft. 13. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Drive/Propeller
Shaft > Component Information > Testing and Inspection > Page 10826
Drive/Propeller Shaft: Tools and Equipment
Special Tools
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Universal Joint,
Drive/Propeller Shaft > Component Information > Service and Repair
Universal Joint: Service and Repair
Universal Joint Replacement - External Snap Ring
Tool Required
J 45270 Universal Joint Remover/Installer
Notice: Never clamp propeller shaft tubing in a vise. Clamping propeller shaft tubing in a vise could
dent or deform the tube, causing an imbalance or unsafe condition. Always clamp on one end of
the yokes and support the shaft horizontally.
Important: Prior to disassembly, mark the positions of the driveshaft components relative to the
driveshaft tube. All components must be reassembled in the same relationship to maintain proper
balance.
1. Remove the propeller shaft. 2. Remove the snap rings.
1. Pinch the ends of the snap ring together with a pair of pliers. 2. If a snap ring does not readily
snap out of the groove in the yoke, tap the end of the bearing cup lightly in order to relieve pressure
from ring.
3. Use J 45270 to remove the U-joint caps.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Universal Joint,
Drive/Propeller Shaft > Component Information > Service and Repair > Page 10830
4. If the bearing cup is not completely removed (2), place the exposed portion of the bearing cap
into a soft-jaw vise. Tap upwards on the propeller
shaft yoke with a hammer until the bearing cap is free of the propeller shaft yoke.
5. Rotate the propeller shaft and press the opposite bearing cup out of the yoke.
6. Remove the cross from the yoke. 7. Remove the remaining universal joint parts from the yoke. 8.
Inspect the retaining ring grooves for the following:
* Dirt
* Corrosion
* Pieces of the old ring
9. Inspect the bearing cup bores for burns or imperfections.
Important: Corrosion or dirt may prevent bearing cup installation and may prohibit the proper
seating of the bearing retainers.
10. Clean the retaining ring grooves.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Universal Joint,
Drive/Propeller Shaft > Component Information > Service and Repair > Page 10831
1. Remove the bearing cups from the new universal joint journals. 2. Coat the needle bearings in
the bearing cups with a thin layer of grease that is present on the journal. Use your finger to apply
the grease. 3. Install one bearing cup partway into one side of the yoke. 4. Turn the yoke ear
toward the bottom. 5. Install the cross into the yoke so that the trunnion seats freely into the
bearing cup.
6. With the trunnion seated in the bearing cup, press the bearing cup into the yoke until it is flush
with the yoke ear. 7. Install the opposite bearing cup partway into the yoke ear. 8. Make sure that
the trunnions are started straight and true into both bearing cups.
Important: If the bearing cup seems to bind or hang-up, stop pressing. Check the needle bearings
for misalignment in the bearing cup.
9. Press the opposite bearing cup into the yoke ear.
* Work the cross all the time.
* Check for free unbinding movement of the trunnions in the bearing cups.
* Press the bearing cup into the yoke until the bearing retainer groove is visible over the top of the
bearing cup.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Universal Joint,
Drive/Propeller Shaft > Component Information > Service and Repair > Page 10832
Important: Assemble the universal joint using the yellow snap rings supplied in the kit. If difficulty is
encountered with the yellow snap rings, install the black snap rings supplied in the kit.
10. Install the bearing retainer in the retainer groove.
* Continue pressing until you can snap both retainers into place.
* A small amount of chassis grease may help the snap ring seat in the bearing cup groove.
11. After the clips are installed, check for binding.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Drive/Propeller Shafts, Bearings and Joints > Universal Joint,
Drive/Propeller Shaft > Component Information > Service and Repair > Page 10833
12. If cross binding is felt, it may be necessary to strike the flange area in order to remove excess
pressure from the cross.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Flex Plate > Component Information > Specifications
Flex Plate: Specifications
Flywheel Bolt .......................................................................................................................................
.......................................................... 71 N.m 52 lb ft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Flex Plate > Component Information > Specifications > Page
10837
Flex Plate: Service and Repair
Engine Flywheel Replacement
Removal Procedure
1. Remove the automatic transaxle. 2. Remove the engine flywheel bolts and flywheel. 3. Clean the
engine flywheel bolt threads and bolt holes. 4. Clean and inspect the engine flywheel.
Installation Procedure
Notice: Refer to Fastener Notice .
1. Install the engine flywheel and bolts
Tighten bolts to 71 N.m (52 lb ft).
2. Install the automatic transaxle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Lamps and Indicators - Transmission and Drivetrain > Lamps
and Indicators - A/T > Shift Indicator > Component Information > Description and Operation
Shift Indicator: Description and Operation
Shift Indicator Description and Operation
The shift indicator, located in the console, displays the selected gear position. The body control
module (BCM) controls the LEDs in the PRNDL display of the shift indicator through 4 control
circuits. The parameters of the 4 control circuits to the shift indicator are bits A, B, C, and parity.
These outputs are available for display on the scan tool. The BCM has 8 DTCs for these 4 control
circuits. These DTCs diagnose a short or an open for each circuit. The BCM receives selected gear
position information from the transmission control module (TCM) via serial data. The TCM receives
the gear position through four inputs from the park/neutral position switch assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Manual Transmission/Transaxle > Component Information >
Technical Service Bulletins > Manual Transmission - M/T Operating Characteristics
Manual Transmission/Transaxle: Technical Service Bulletins Manual Transmission - M/T Operating
Characteristics
INFORMATION
Bulletin No.: 03-07-29-004G
Date: December 15, 2010
Subject: Manual Transmission Operating Characteristics
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks (Including Saturn) 2009 and Prior
Chevrolet and GMC Medium Duty Trucks 2006-2010 HUMMER H3 with Manual Transmission
Supercede: This bulletin is being revised to add the 2011 model year and to add Cold Operation
information. Please discard Corporate Bulletin Number 03-07-29-004F (Section 07 Transmission/Transaxle).
Important Even though this bulletin attempts to cover operating characteristics of manual
transmissions, it cannot be all inclusive. Be sure to compare any questionable concerns to a similar
vehicle and if possible, with similar mileage. Even though many of the conditions are described as
characteristics and may not be durability issues, GM may attempt to improve specific issues for
customer satisfaction.
The purpose of this bulletin is to assist in identifying characteristics of manual transmissions that
repair attempts will not change. The following are explanations and examples of conditions that will
generally occur in all manual transmissions. All noises will vary between transmissions due to build
variation, type of transmission (usually the more heavy duty, the more noise), type of flywheel and
clutch, level of insulation, etc.
Basic Information
Many transmission noises are created by the firing pulses of the engine. Each firing pulse creates a
sudden change in angular acceleration at the crankshaft. These changes in speed can be reduced
with clutch damper springs and dual mass flywheels. However, some speed variation will make it
through to the transmission. This can create noise as the various gears will accel and decel against
each other because of required clearances.
Cold Operation
Manual transmission operation will be affected by temperature because the transmission fluid will
be thicker when cold. The thicker fluid will increase the amount of force needed to shift the
transmission when cold. The likelihood of gear clash will also increase due to the greater time
needed for the synchronizer assembly to perform its function. Therefore when the transmission is
cold, or before it has reached operating temperature, quick, hard shifts should be avoided to
prevent damage to the transmission.
Gear Rattle
Rattling or grinding (not to be confused with a missed shift type of grinding, also described as a
combustion knock type of noise) type noises usually occur while operating the engine at low RPMs
(lugging the engine). This can occur while accelerating from a stop (for example, a Corvette) or
while operating at low RPMs while under a load (for example, Kodiak in a lower gear and at low
engine speed). Vehicles equipped with a dual-mass flywheel (for example, a 3500 HD Sierra with
the 6-speed manual and Duramax(R)) will have reduced noise levels as compared to vehicles
without (for example, a 4500 Kodiak with the 6-speed manual and Duramax(R)). However,
dual-mass flywheels do not eliminate all noise.
Neutral Rattle
There are often concerns of rattle while idling in neutral with the clutch engaged. This is related to
the changes in angular acceleration described earlier. This is a light rattle, and once again, vehicles
with dual mass flywheels will have reduced noise. If the engine is shut off while idling in neutral with
the clutch engaged, the sudden stop of the engine will create a rapid change in angular
acceleration that even dual mass flywheels cannot compensate. Because of the mass of all the
components, this will create a noise. This type of noise should not be heard if the clutch is released
(pedal pushed to the floor).
Backlash
Backlash noise is created when changing engine or driveline loading. This can occur when
accelerating from a stop, coming to a stop, or applying and releasing the throttle (loading and
unloading the driveline). This will vary based on vehicle type, build variations, driver input, vehicle
loading, etc. and is created from the necessary clearance between all of the mating gears in the
transmission, axle(s) and transfer case (if equipped).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Manual Transmission/Transaxle > Component Information >
Technical Service Bulletins > Manual Transmission - M/T Operating Characteristics > Page 10847
Shift Effort
Shift effort will vary among different style transmissions and synchronizer designs. Usually the
more heavy duty the transmission, the higher the shift effort because of the increased mass of the
components. Shift effort can also be higher in cold weather because the fluid will be thicker.
Medium duty transmissions will not shift as quickly as a Corvette transmission. To reduce shift
effort, do not attempt to rush the shift - allow the synchronizers to work as designed. Shifting harder
will only increase the chance of rushing past the synchronizer leading to grinding while shifting.
Non-Synchronized Gears
Some light duty truck transmissions in 1st gear (creeper-gear) and reverse gears in various
transmissions, along with all gears in some medium duty transmissions, may be non-synchronized.
This means there is not a mechanism to match input and output shaft speeds to allow for a smooth
shift. This function is left up to the driver. This can be noticed if a shift into 1st or reverse is
attempted while the vehicle is rolling or before the input shaft stops rotating leading to a gear grind.
The grinding can be reduced by coming to a complete stop and pausing for a moment before
shifting into the 1st or reverse gear. Some slight grinding can be expected. In medium duty
non-synchronized transmissions, the driver must match input shaft (engine) speed to output shaft
(driveshaft) speed with every shift. This can be accomplished by double clutching, or by using other
methods. If the driver is not able to perform this function properly, there will be gear grinding with
each improperly completed shift. Driver training may be required to correct this condition. Clutch
brakes are used in medium duty non-synchronized transmissions to allow a shift into gear at a
stop. The clutch brake is used to stop the input shaft from spinning, allowing a shift into gear at a
stop without grinding. The clutch brake is activated by pressing the clutch pedal all the way to the
floor. When the clutch brake is used, it is possible to have a blocked shift with the vehicle
stationary. If this occurs, engage the clutch slightly to rotate the input gear to allow the shift. The
clutch brake is intended to only be used while at a stop. Care must be taken to not activate the
clutch brake while shifting between gears. This could lead to excessive grinding or a blocked or
missed shift.
Skip Shift
Currently, the Cadillac CTS-V, Pontiac GTO, Chevrolet Corvette and Camaro SS (other models
may follow) equipped with the 6-speed manual transmission have a feature referred to as a
"skip-shift." This feature only allows a shift from 1st to 4th gear when the indicator lamp is
illuminated on the dash. Dealers cannot disable this feature as it was established to help meet fuel
economy standards. The conditions for this feature are: engine coolant at normal operating
temperature, vehicle speed of 24-31 km/h (15-19 mph), 21% or less throttle being used (refer to
Service Information or the Owner Manual for more details.)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Relays and Modules - Transmission and Drivetrain > Relays
and Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Customer Interest for
Control Module: > 07-07-30-014 > May > 07 > A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Control Module: Customer Interest A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Relays and Modules - Transmission and Drivetrain > Relays
and Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Control Module: > 07-07-30-014 > May > 07 > A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Control Module: All Technical Service Bulletins A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Relays and Modules - Transmission and Drivetrain > Relays
and Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10863
Control Module: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor 62 - Automatic Transmission Output
Speed Sensor 73 - Automatic Transmission Input Speed Sensor 75 - Transmission Control Module
(TCM) 300 - 1-2, 2-3, Reverse, Shift Solenoid Valve Assembly (S3) 303 - 3-4, 4-5 Shift Solenoid
Valve Assembly (S4) 305 - Reverse Shift Valve Solenoid (S5) 308 - 2-3, 3-4 Shift Solenoid Valve
Assembly (S2) 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1) 316 - Line Pressure Control
Solenoid Valve Assembly (SLT) 339 - TCC Lock Up Pressure Control Solenoid Valve Assembly
(SLU)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Relays and Modules - Transmission and Drivetrain > Relays
and Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10864
340 - Shift Pressure Control Solenoid Valve Assembly (SLS)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Relays and Modules - Transmission and Drivetrain > Relays
and Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10865
Control Module: Diagrams
Transmission Control Module
Transmission Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Relays and Modules - Transmission and Drivetrain > Relays
and Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10866
Control Module: Service and Repair
TRANSMISSION CONTROL MODULE REPLACEMENT
Removal Procedure
1. Remove the battery tray. See: Starting and Charging/Battery/Battery Tray/Service and
Repair/Battery Tray Replacement
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
transmission control module (TCM).
2. Apply the parking brake and place control shift lever in neutral (N).
3. Remove the manual shaft detent lever (2). See: Automatic Transmission/Transaxle/Sensors and
Switches - A/T/Transmission Position
Switch/Sensor/Service and Repair/Transaxle Range Switch Replacement
4. Disconnect the electrical connectors from the TCM. 5. Remove the TCM bolts (3). 6. Remove
the TCM (4) by sliding off of the manual shaft.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Relays and Modules - Transmission and Drivetrain > Relays
and Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10867
1. Using an adjustable wrench on the manual shaft detent lever (710), turn the shaft clockwise until
it stops. 2. Turn the shaft counterclockwise one position to the neutral location. To verify turning the
shaft in the correct direction, on the manual shaft detent
lever (710) the reverse position is larger and more resistance can be felt.
3. Inspect the condition of the connector pins on the wiring harness assembly (33) for foreign
material, bent pins, or broken pins. 4. Ensure the TCM seal (72) is installed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Relays and Modules - Transmission and Drivetrain > Relays
and Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10868
5. Turn the slot in the TCM to align the 2 marks. Do not turn more than 60 degrees.
6. Install the TCM (4) over the manual shaft.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct
part number for that application. Fasteners requiring replacement or fasteners requiring the use of
thread locking compound or sealant are identified in the service procedure. Do not use paints,
lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These
coatings affect fastener torque and joint clamping force and may damage the fastener. Use the
correct tightening sequence and specifications when installing fasteners in order to avoid damage
to parts and systems.
7. Install the bolts (3).
Tighten the bolts to 25 Nm (18 lb ft).
8. Connect the electrical connectors (3, 5) to the TCM. 9. Install the manual shaft detent lever.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Relays and Modules - Transmission and Drivetrain > Relays
and Modules - A/T > Control Module, A/T > Component Information > Technical Service Bulletins > Page 10869
10. Install the battery tray.
Important: DTC P0602 is set with all new service transaxle control modules. When the transaxle
control module is reprogrammed with the correct software and calibrations, DTC P0602 will be
erased.
11. Reprogram the TCM with the correct calibration. See: Testing and Inspection/Programming and
Relearning 12. Perform the transmission adaptive learn procedure. See: Testing and
Inspection/Programming and Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Relays and Modules - Transmission and Drivetrain > Relays
and Modules - Differential > Control Unit, Differential Lock > Component Information > Service and Repair
Control Unit: Service and Repair
Rear Differential Clutch Control Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Locations
Transmission Position Switch/Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
75 - Park/Neutral Position Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Locations > Page
10879
Transmission Position Switch/Sensor: Adjustments
Transaxle Range Switch Adjustment
Tools Required
* J 36346 Fascia Retainer Remover
* J 45404 Transmission Indicator Alignment Tool
1. Remove the battery tray. 2. Shift the transaxle into neutral (N) position.
3. Using the J 36346, remove the shift control cable from the transaxle range switch lever.
4. Loosen the transaxle range switch bolt (2) and stud (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Locations > Page
10880
5. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
on the J 45404.
Notice: Refer to Fastener Notice.
6. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
7. Remove the J 45404 from the manual shaft. 8. Install the shift control cable to the transaxle
range switch lever. 9. Install the battery tray.
10. After adjusting the transaxle range switch, verify the engine only starts in park (P) or neutral
(N). If the engine starts in any other position, readjust
the switch.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair >
Transaxle Range Switch Lever Replacement
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Lever
Replacement
Transaxle Range Switch Lever Replacement
Tools Required
J 36346 Fascia Retainer Remover
Removal Procedure
1. Remove the battery tray.
2. Using the J 36346, disconnect the shift control cable from the transaxle range switch lever.
3. Remove the transaxle range switch lever nut and lever.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair >
Transaxle Range Switch Lever Replacement > Page 10883
Notice: Refer to Fastener Notice.
1. Install the transaxle range switch lever and lever nut.
Tighten the nut to 16 N.m (12 lb ft).
2. Install the shift control cable end fitting onto the ball stud of the transaxle range switch lever. An
audible snap will be heard when properly
installed.
3. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair >
Transaxle Range Switch Lever Replacement > Page 10884
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Replacement
Transaxle Range Switch Replacement
Tools Required
J 45404 Transmission Indicator Alignment Tool
Removal Procedure
1. Remove the battery tray.
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
switch.
2. Apply the parking brake and place control shift lever in neutral (N). 3. Remove the transaxle
range switch lever.
4. Disconnect the electrical connectors (3, 5) from the transaxle range switch.
5. Using a screwdriver, bend the lockwasher tabs down away from the manual shaft nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair >
Transaxle Range Switch Lever Replacement > Page 10885
6. Remove the nut, lock tab washer, and flat washer.
7. Remove the transaxle range switch bolt (2), stud (1), and flat washers. 8. Remove the transaxle
range switch (3).
Installation Procedure
1. Install the transaxle range switch (3) to the manual shaft lever. 2. Install the washer stud (1) and
the bolt (2). Hand tighten ONLY at this time.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair >
Transaxle Range Switch Lever Replacement > Page 10886
Notice: Refer to Fastener Notice.
3. Install the flat washer, lock tab washer, and nut.
Tighten the nut to 7 N.m (62 lb in).
4. Ensure the manual shaft is in neutral (N) position.
5. Bend the lock washer tabs up to secure the nut.
6. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component Information > Service and Repair >
Transaxle Range Switch Lever Replacement > Page 10887
on the J 45404.
7. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
8. Remove the J 45404 from the manual shaft.
9. Connect the electrical connectors (3, 5) to the transaxle range switch.
10. Install the transaxle range switch lever. 11. Install the battery tray. 12. After installing and
adjusting the switch, verify the engine only starts in park (P) or neutral (N). If the engine starts in
any other position, readjust
the switch. Refer to Transaxle Range Switch Adjustment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Locations
Transmission Speed Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
62 - Automatic Transmission Output Speed Sensor 73 - Automatic Transmission Input Speed
Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Diagrams > Input Shaft Speed
(ISS) Sensor Connector, Wiring Harness Side
Transmission Speed Sensor: Diagrams Input Shaft Speed (ISS) Sensor Connector, Wiring
Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Diagrams > Input Shaft Speed
(ISS) Sensor Connector, Wiring Harness Side > Page 10893
Transmission Speed Sensor: Diagrams Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input
Speed Sensor Replacement
Transmission Speed Sensor: Service and Repair Input Speed Sensor Replacement
Input Speed Sensor Replacement
Removal Procedure
1. Remove the battery tray.
2. Disconnect the wiring harness (4) from the input speed sensor.
3. Remove the input speed sensor bolt. 4. Remove the input speed sensor. 5. Remove the input
speed sensor O-ring. Discard the O-ring.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input
Speed Sensor Replacement > Page 10896
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new input speed sensor
O-ring. 2. Install the new input speed sensor O-ring onto the input speed sensor. 3. Install the input
speed sensor to the transaxle.
Notice: Refer to Fastener Notice.
4. Install the input speed sensor bolt.
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (4) to the input speed sensor. 6. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input
Speed Sensor Replacement > Page 10897
Transmission Speed Sensor: Service and Repair Output Speed Sensor Replacement
Output Speed Sensor Replacement
Removal Procedure
1. Disconnect the wiring harness (2) from the output shaft speed sensor.
2. Remove the output speed sensor bolt (3). 3. Remove the output shaft speed sensor (2) and the
O-ring (1).
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information > Service and Repair > Input
Speed Sensor Replacement > Page 10898
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new output speed sensor
O-ring (1). 2. Install the new output speed sensor O-ring (1) onto the output speed sensor (2). 3.
Install the output speed sensor (2) into the transmission case assembly.
Notice: Refer to Fastener Notice.
4. Install the output speed sensor bolt (3).
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (2) to the output shaft speed sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Temperature Sensor/Switch, A/T > Component Information > Locations
Transmission Temperature Sensor/Switch: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - A/T > Transmission Temperature Sensor/Switch, A/T > Component Information > Locations > Page
10902
Transmission Temperature Sensor/Switch: Diagrams
Automatic Transmission Fluid Temperature (TFT) Sensor
Automatic Transmission Fluid Temperature (TFT) Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Sensors and Switches - Transmission and Drivetrain >
Sensors and Switches - Transfer Case > Speed Sensor, Transfer Case > Component Information > Technical Service
Bulletins > Drivetrain - Updated Transfer Case Speed Sensor Conn.
Speed Sensor: Technical Service Bulletins Drivetrain - Updated Transfer Case Speed Sensor
Conn.
Bulletin No.: 06-04-21-001
Date: May 17, 2006
INFORMATION
Subject: Updated Transfer Case Connector Service Kit Now Available For Transfer Case Speed
Sensor Wire Harness Connector that Comes Loose Or Connector Retainer Clip Breaks
Models: 2007 and Prior GM Light Duty Trucks 2007 and Prior HUMMER H2, H3 2005-2007 Saab
9-7X
with Four-Wheel Drive or All-Wheel Drive
Technicians may find that when the transfer case speed sensor wire harness connector is
removed, the connector lock flexes/bends and does not return to the original position. The transfer
case speed sensor wire harness connector then has no locking device. On older vehicles, the
plastic connector retainer becomes brittle and the clip may break as soon as it is flexed. In the past,
the only service fix was to install a wire harness connector service pack, P/N 88987183. This repair
procedure involved splicing a new service connector with an integral connector lock. This
connector service kit is of the same design and was still prone to failure over time.
A new connector service repair kit is now available, P/N 15306187, that is an updated design. This
new kit should be used whenever the speed sensor wire harness connector requires replacement.
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transfer Case > Sensors and Switches - Transfer Case >
Speed Sensor, Transfer Case > Component Information > Technical Service Bulletins > Drivetrain - Updated Transfer Case
Speed Sensor Conn.
Speed Sensor: Technical Service Bulletins Drivetrain - Updated Transfer Case Speed Sensor
Conn.
Bulletin No.: 06-04-21-001
Date: May 17, 2006
INFORMATION
Subject: Updated Transfer Case Connector Service Kit Now Available For Transfer Case Speed
Sensor Wire Harness Connector that Comes Loose Or Connector Retainer Clip Breaks
Models: 2007 and Prior GM Light Duty Trucks 2007 and Prior HUMMER H2, H3 2005-2007 Saab
9-7X
with Four-Wheel Drive or All-Wheel Drive
Technicians may find that when the transfer case speed sensor wire harness connector is
removed, the connector lock flexes/bends and does not return to the original position. The transfer
case speed sensor wire harness connector then has no locking device. On older vehicles, the
plastic connector retainer becomes brittle and the clip may break as soon as it is flexed. In the past,
the only service fix was to install a wire harness connector service pack, P/N 88987183. This repair
procedure involved splicing a new service connector with an integral connector lock. This
connector service kit is of the same design and was still prone to failure over time.
A new connector service repair kit is now available, P/N 15306187, that is an updated design. This
new kit should be used whenever the speed sensor wire harness connector requires replacement.
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transfer Case > Speed Sensor, Transfer Case > Component
Information > Technical Service Bulletins > Drivetrain - Updated Transfer Case Speed Sensor Conn.
Speed Sensor: Technical Service Bulletins Drivetrain - Updated Transfer Case Speed Sensor
Conn.
Bulletin No.: 06-04-21-001
Date: May 17, 2006
INFORMATION
Subject: Updated Transfer Case Connector Service Kit Now Available For Transfer Case Speed
Sensor Wire Harness Connector that Comes Loose Or Connector Retainer Clip Breaks
Models: 2007 and Prior GM Light Duty Trucks 2007 and Prior HUMMER H2, H3 2005-2007 Saab
9-7X
with Four-Wheel Drive or All-Wheel Drive
Technicians may find that when the transfer case speed sensor wire harness connector is
removed, the connector lock flexes/bends and does not return to the original position. The transfer
case speed sensor wire harness connector then has no locking device. On older vehicles, the
plastic connector retainer becomes brittle and the clip may break as soon as it is flexed. In the past,
the only service fix was to install a wire harness connector service pack, P/N 88987183. This repair
procedure involved splicing a new service connector with an integral connector lock. This
connector service kit is of the same design and was still prone to failure over time.
A new connector service repair kit is now available, P/N 15306187, that is an updated design. This
new kit should be used whenever the speed sensor wire harness connector requires replacement.
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Pressure Regulating Solenoid, A/T > Component
Information > Locations
Pressure Regulating Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
340 - Shift Pressure Control Solenoid Valve Assembly (SLS) 316 - Line Pressure Control Solenoid
Valve Assembly (SLT)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Pressure Regulating Solenoid, A/T > Component
Information > Diagrams > Shift Pressure Control Solenoid (SLS)
Pressure Regulating Solenoid: Diagrams Shift Pressure Control Solenoid (SLS)
Shift Pressure Control Solenoid (SLS)
Shift Pressure Control Solenoid (SLS)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Pressure Regulating Solenoid, A/T > Component
Information > Diagrams > Shift Pressure Control Solenoid (SLS) > Page 10926
Pressure Regulating Solenoid: Diagrams Line Pressure Control Solenoid (SLT)
Line Pressure Control Solenoid (SLT)
Line Pressure Control Solenoid (SLT)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Pressure Regulating Solenoid, A/T > Component
Information > Diagrams > Shift Pressure Control Solenoid (SLS) > Page 10927
Pressure Regulating Solenoid: Diagrams Torque Converter Clutch Pressure Control Solenoid
Valve
Torque Converter Clutch Pressure Control Solenoid Valve
Torque Converter Clutch Pressure Control Solenoid Valve
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Interlock Solenoid > Component Information >
Locations
Shift Interlock Solenoid: Locations
Shift Lock Control Component Views
Below the Shifter
Below The Shifter
1 - I/P Trim 2 - Console Arm Rest 3 - Cigar Lighter 4 - Shift Lock Control Solenoid
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Interlock Solenoid > Component Information >
Locations > Page 10931
Shift Interlock Solenoid: Service and Repair
Shift Lock Solenoid/Switch Assembly Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Locations
Shift Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
300 - 1-2, 2-3, Reverse, Shift Solenoid Valve Assembly (S3) 303 - 3-4, 4-5 Shift Solenoid Valve
Assembly (S4) 305 - Reverse Shift Valve Solenoid (S5) 308 - 2-3, 3-4 Shift Solenoid Valve
Assembly (S2) 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Diagrams >
Diagram Information and Instructions
Shift Solenoid: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Diagrams >
Diagram Information and Instructions > Page 10937
Electrical Symbols Part 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Diagrams >
Diagram Information and Instructions > Page 10938
Electrical Symbols Part 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Diagrams >
Diagram Information and Instructions > Page 10939
Electrical Symbols Part 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Diagrams >
Diagram Information and Instructions > Page 10940
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Diagrams >
Diagram Information and Instructions > Page 10941
Electrical Symbols Part 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Diagrams >
Diagram Information and Instructions > Page 10942
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Diagrams >
Diagram Information and Instructions > Page 10943
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Diagrams >
Diagram Information and Instructions > Page 10944
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Shift Solenoid, A/T > Component Information > Diagrams >
Diagram Information and Instructions > Page 10945
Shift Solenoid: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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Diagram Information and Instructions > Page 10983
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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Diagram Information and Instructions > Page 10989
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Diagram Information and Instructions > Page 10991
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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Diagram Information and Instructions > Page 11000
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Shift Solenoid: Connector Views
Shift Solenoid 1
Shift Solenoid 1
Shift Solenoid 1
Shift Solenoid 2
Shift Solenoid 2
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Shift Solenoid 2
Shift Solenoid 3
Shift Solenoid 3
Shift Solenoid 3
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Shift Solenoid 4
Shift Solenoid 4
Shift Solenoid 4
Shift Solenoid 5
Shift Solenoid 5
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Shift Solenoid 5
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Torque Converter Clutch Solenoid: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
339 - TCC Lock Up Pressure Control Solenoid Valve Assembly (SLU)
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Torque Converter Clutch Solenoid: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Torque Converter Clutch Solenoid: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: -
Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: -
High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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Information > Diagrams > Diagram Information and Instructions > Page 11127
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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Information > Diagrams > Diagram Information and Instructions > Page 11130
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Information > Diagrams > Diagram Information and Instructions > Page 11132
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Information > Diagrams > Diagram Information and Instructions > Page 11135
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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Information > Diagrams > Diagram Information and Instructions > Page 11136
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Information > Diagrams > Diagram Information and Instructions > Page 11137
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Information > Diagrams > Diagram Information and Instructions > Page 11138
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Information > Diagrams > Diagram Information and Instructions > Page 11139
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. -
The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 11140
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 11141
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 11142
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 11143
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Actuators and Solenoids Transmission and Drivetrain > Actuators and Solenoids - A/T > Torque Converter Clutch Solenoid, A/T > Component
Information > Diagrams > Diagram Information and Instructions > Page 11144
Torque Converter Clutch Solenoid: Connector Views
Torque Converter Clutch (TCC) Lock Up Pressure Control Solenoid (SLU)
Torque Converter Clutch (TCC) Lock Pressure Control Solenoid (SLU)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Lamps and Indicators Transmission and Drivetrain > Lamps and Indicators - A/T > Shift Indicator > Component Information > Description and
Operation
Shift Indicator: Description and Operation
Shift Indicator Description and Operation
The shift indicator, located in the console, displays the selected gear position. The body control
module (BCM) controls the LEDs in the PRNDL display of the shift indicator through 4 control
circuits. The parameters of the 4 control circuits to the shift indicator are bits A, B, C, and parity.
These outputs are available for display on the scan tool. The BCM has 8 DTCs for these 4 control
circuits. These DTCs diagnose a short or an open for each circuit. The BCM receives selected gear
position information from the transmission control module (TCM) via serial data. The TCM receives
the gear position through four inputs from the park/neutral position switch assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Customer Interest for Control Module: > 07-07-30-014 > May > 07 > A/T Controls - MIL ON/DTC's P0711
or U0101 Set
Control Module: Customer Interest A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Control Module: > 07-07-30-014 > May > 07 > A/T Controls - MIL
ON/DTC's P0711 or U0101 Set
Control Module: All Technical Service Bulletins A/T Controls - MIL ON/DTC's P0711 or U0101 Set
Bulletin No.: 07-07-30-014
Date: May 23, 2007
TECHNICAL
Subject:
AF33-5 Transmission - Check Engine Light On, DTC P0711 or U0101 Set (Reprogram TCM by
Contacting TCSC)
Models: 2006-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on the check engine light being illuminated. Upon investigation, the
technician may find either DTC P0711 or U0101 set.
Cause
A software anomaly within the TCM may cause this condition.
Correction
DO NOT replace the internal transaxle wiring harness to correct P0711 code.
Contact the Techline Customer Support Center (TCSC) to obtain a VCI number and reprogram the
TCM to correct a single DTC of either P0711 or U0101. Multiple communication codes will NOT be
addressed with this TCM software update.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 11165
Control Module: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor 62 - Automatic Transmission Output
Speed Sensor 73 - Automatic Transmission Input Speed Sensor 75 - Transmission Control Module
(TCM) 300 - 1-2, 2-3, Reverse, Shift Solenoid Valve Assembly (S3) 303 - 3-4, 4-5 Shift Solenoid
Valve Assembly (S4) 305 - Reverse Shift Valve Solenoid (S5) 308 - 2-3, 3-4 Shift Solenoid Valve
Assembly (S2) 310 - Reverse, 1st Shift Solenoid Valve Assembly (S1) 316 - Line Pressure Control
Solenoid Valve Assembly (SLT) 339 - TCC Lock Up Pressure Control Solenoid Valve Assembly
(SLU)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 11166
340 - Shift Pressure Control Solenoid Valve Assembly (SLS)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 11167
Control Module: Diagrams
Transmission Control Module
Transmission Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 11168
Control Module: Service and Repair
TRANSMISSION CONTROL MODULE REPLACEMENT
Removal Procedure
1. Remove the battery tray. See: Starting and Charging/Battery/Battery Tray/Service and
Repair/Battery Tray Replacement
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
transmission control module (TCM).
2. Apply the parking brake and place control shift lever in neutral (N).
3. Remove the manual shaft detent lever (2). See: Sensors and Switches - Transmission and
Drivetrain/Sensors and Switches - A/T/Transmission
Position Switch/Sensor/Service and Repair/Transaxle Range Switch Replacement
4. Disconnect the electrical connectors from the TCM. 5. Remove the TCM bolts (3). 6. Remove
the TCM (4) by sliding off of the manual shaft.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 11169
1. Using an adjustable wrench on the manual shaft detent lever (710), turn the shaft clockwise until
it stops. 2. Turn the shaft counterclockwise one position to the neutral location. To verify turning the
shaft in the correct direction, on the manual shaft detent
lever (710) the reverse position is larger and more resistance can be felt.
3. Inspect the condition of the connector pins on the wiring harness assembly (33) for foreign
material, bent pins, or broken pins. 4. Ensure the TCM seal (72) is installed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 11170
5. Turn the slot in the TCM to align the 2 marks. Do not turn more than 60 degrees.
6. Install the TCM (4) over the manual shaft.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct
part number for that application. Fasteners requiring replacement or fasteners requiring the use of
thread locking compound or sealant are identified in the service procedure. Do not use paints,
lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These
coatings affect fastener torque and joint clamping force and may damage the fastener. Use the
correct tightening sequence and specifications when installing fasteners in order to avoid damage
to parts and systems.
7. Install the bolts (3).
Tighten the bolts to 25 Nm (18 lb ft).
8. Connect the electrical connectors (3, 5) to the TCM. 9. Install the manual shaft detent lever.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Technical
Service Bulletins > Page 11171
10. Install the battery tray.
Important: DTC P0602 is set with all new service transaxle control modules. When the transaxle
control module is reprogrammed with the correct software and calibrations, DTC P0602 will be
erased.
11. Reprogram the TCM with the correct calibration. See: Testing and Inspection/Programming and
Relearning 12. Perform the transmission adaptive learn procedure. See: Testing and
Inspection/Programming and Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Relays and Modules Transmission and Drivetrain > Relays and Modules - Differential > Control Unit, Differential Lock > Component Information >
Service and Repair
Control Unit: Service and Repair
Rear Differential Clutch Control Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Locations
Transmission Position Switch/Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
75 - Park/Neutral Position Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Locations > Page 11181
Transmission Position Switch/Sensor: Adjustments
Transaxle Range Switch Adjustment
Tools Required
* J 36346 Fascia Retainer Remover
* J 45404 Transmission Indicator Alignment Tool
1. Remove the battery tray. 2. Shift the transaxle into neutral (N) position.
3. Using the J 36346, remove the shift control cable from the transaxle range switch lever.
4. Loosen the transaxle range switch bolt (2) and stud (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Locations > Page 11182
5. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
on the J 45404.
Notice: Refer to Fastener Notice.
6. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
7. Remove the J 45404 from the manual shaft. 8. Install the shift control cable to the transaxle
range switch lever. 9. Install the battery tray.
10. After adjusting the transaxle range switch, verify the engine only starts in park (P) or neutral
(N). If the engine starts in any other position, readjust
the switch.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Lever
Replacement
Transaxle Range Switch Lever Replacement
Tools Required
J 36346 Fascia Retainer Remover
Removal Procedure
1. Remove the battery tray.
2. Using the J 36346, disconnect the shift control cable from the transaxle range switch lever.
3. Remove the transaxle range switch lever nut and lever.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page 11185
Notice: Refer to Fastener Notice.
1. Install the transaxle range switch lever and lever nut.
Tighten the nut to 16 N.m (12 lb ft).
2. Install the shift control cable end fitting onto the ball stud of the transaxle range switch lever. An
audible snap will be heard when properly
installed.
3. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page 11186
Transmission Position Switch/Sensor: Service and Repair Transaxle Range Switch Replacement
Transaxle Range Switch Replacement
Tools Required
J 45404 Transmission Indicator Alignment Tool
Removal Procedure
1. Remove the battery tray.
Important: The transaxle manual shaft must be in neutral (N) position prior to re-installing the
switch.
2. Apply the parking brake and place control shift lever in neutral (N). 3. Remove the transaxle
range switch lever.
4. Disconnect the electrical connectors (3, 5) from the transaxle range switch.
5. Using a screwdriver, bend the lockwasher tabs down away from the manual shaft nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page 11187
6. Remove the nut, lock tab washer, and flat washer.
7. Remove the transaxle range switch bolt (2), stud (1), and flat washers. 8. Remove the transaxle
range switch (3).
Installation Procedure
1. Install the transaxle range switch (3) to the manual shaft lever. 2. Install the washer stud (1) and
the bolt (2). Hand tighten ONLY at this time.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page 11188
Notice: Refer to Fastener Notice.
3. Install the flat washer, lock tab washer, and nut.
Tighten the nut to 7 N.m (62 lb in).
4. Ensure the manual shaft is in neutral (N) position.
5. Bend the lock washer tabs up to secure the nut.
6. Install the J 45404 to the manual shaft and rotate the transaxle range switch until the neutral
base line on the switch lines up with the indicator line
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Position Switch/Sensor, A/T > Component
Information > Service and Repair > Transaxle Range Switch Lever Replacement > Page 11189
on the J 45404.
7. Tighten the transaxle range switch bolt and stud.
Tighten the bolt and stud to 25 N.m (18 lb ft).
8. Remove the J 45404 from the manual shaft.
9. Connect the electrical connectors (3, 5) to the transaxle range switch.
10. Install the transaxle range switch lever. 11. Install the battery tray. 12. After installing and
adjusting the switch, verify the engine only starts in park (P) or neutral (N). If the engine starts in
any other position, readjust
the switch. Refer to Transaxle Range Switch Adjustment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Locations
Transmission Speed Sensor: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
62 - Automatic Transmission Output Speed Sensor 73 - Automatic Transmission Input Speed
Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Diagrams > Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Transmission Speed Sensor: Diagrams Input Shaft Speed (ISS) Sensor Connector, Wiring
Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Diagrams > Input Shaft Speed (ISS) Sensor Connector, Wiring Harness Side > Page 11195
Transmission Speed Sensor: Diagrams Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Output Shaft Speed (OSS) Sensor, Wiring Harness Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Service and Repair > Input Speed Sensor Replacement
Transmission Speed Sensor: Service and Repair Input Speed Sensor Replacement
Input Speed Sensor Replacement
Removal Procedure
1. Remove the battery tray.
2. Disconnect the wiring harness (4) from the input speed sensor.
3. Remove the input speed sensor bolt. 4. Remove the input speed sensor. 5. Remove the input
speed sensor O-ring. Discard the O-ring.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Service and Repair > Input Speed Sensor Replacement > Page 11198
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new input speed sensor
O-ring. 2. Install the new input speed sensor O-ring onto the input speed sensor. 3. Install the input
speed sensor to the transaxle.
Notice: Refer to Fastener Notice.
4. Install the input speed sensor bolt.
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (4) to the input speed sensor. 6. Install the battery tray.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Service and Repair > Input Speed Sensor Replacement > Page 11199
Transmission Speed Sensor: Service and Repair Output Speed Sensor Replacement
Output Speed Sensor Replacement
Removal Procedure
1. Disconnect the wiring harness (2) from the output shaft speed sensor.
2. Remove the output speed sensor bolt (3). 3. Remove the output shaft speed sensor (2) and the
O-ring (1).
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Speed Sensor, A/T > Component Information >
Service and Repair > Input Speed Sensor Replacement > Page 11200
1. Apply GM T-IV automatic transaxle fluid GM P/N 88900925 to the new output speed sensor
O-ring (1). 2. Install the new output speed sensor O-ring (1) onto the output speed sensor (2). 3.
Install the output speed sensor (2) into the transmission case assembly.
Notice: Refer to Fastener Notice.
4. Install the output speed sensor bolt (3).
Tighten the bolt to 6 N.m (53 lb in).
5. Connect the wiring harness (2) to the output shaft speed sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Temperature Sensor/Switch, A/T > Component
Information > Locations
Transmission Temperature Sensor/Switch: Locations
Automatic Transmission Electronic Component Views
Electronic Components View
Electronic Components View
36 - Automatic Transmission Fluid Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - A/T > Transmission Temperature Sensor/Switch, A/T > Component
Information > Locations > Page 11204
Transmission Temperature Sensor/Switch: Diagrams
Automatic Transmission Fluid Temperature (TFT) Sensor
Automatic Transmission Fluid Temperature (TFT) Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Transmission and Drivetrain > Transmission Control Systems > Sensors and Switches Transmission and Drivetrain > Sensors and Switches - Transfer Case > Speed Sensor, Transfer Case > Component
Information > Technical Service Bulletins > Drivetrain - Updated Transfer Case Speed Sensor Conn.
Speed Sensor: Technical Service Bulletins Drivetrain - Updated Transfer Case Speed Sensor
Conn.
Bulletin No.: 06-04-21-001
Date: May 17, 2006
INFORMATION
Subject: Updated Transfer Case Connector Service Kit Now Available For Transfer Case Speed
Sensor Wire Harness Connector that Comes Loose Or Connector Retainer Clip Breaks
Models: 2007 and Prior GM Light Duty Trucks 2007 and Prior HUMMER H2, H3 2005-2007 Saab
9-7X
with Four-Wheel Drive or All-Wheel Drive
Technicians may find that when the transfer case speed sensor wire harness connector is
removed, the connector lock flexes/bends and does not return to the original position. The transfer
case speed sensor wire harness connector then has no locking device. On older vehicles, the
plastic connector retainer becomes brittle and the clip may break as soon as it is flexed. In the past,
the only service fix was to install a wire harness connector service pack, P/N 88987183. This repair
procedure involved splicing a new service connector with an integral connector lock. This
connector service kit is of the same design and was still prone to failure over time.
A new connector service repair kit is now available, P/N 15306187, that is an updated design. This
new kit should be used whenever the speed sensor wire harness connector requires replacement.
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign
- ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign
- ESC/Steering Module Reprogramming > Page 11220
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign
- ESC/Steering Module Reprogramming > Page 11221
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign
- ESC/Steering Module Reprogramming > Page 11222
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign
- ESC/Steering Module Reprogramming > Page 11223
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Customer Interest: > 07-02-32-009 > Sep >
07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Electronic Brake Control Module: Customer Interest Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Customer Interest: > 07-02-32-009 > Sep >
07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page 11229
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Electronic Brake Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545 > Page 11235
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11240
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11241
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11242
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11243
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Electronic Brake Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page
11249
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11255
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11256
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11257
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Electronic
Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11258
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Page 11259
Electronic Brake Control Module: Locations
Near the Brake Booster
1 - Brake Fluid Level Switch 2 - LF Strut Tower 3 - Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Page 11260
Electronic Brake Control Module: Diagrams
Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Page 11261
Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Page 11262
Electronic Brake Control Module: Service and Repair
Electronic Brake Control Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Electronic
Brake Control Module > Component Information > Technical Service Bulletins > Page 11263
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Hydraulic
Control Assembly - Antilock Brakes > Component Information > Service and Repair > Brake Pressure Modulator Valve
Replacement
Hydraulic Control Assembly - Antilock Brakes: Service and Repair Brake Pressure Modulator Valve
Replacement
Brake Pressure Modulator Valve Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Hydraulic
Control Assembly - Antilock Brakes > Component Information > Service and Repair > Brake Pressure Modulator Valve
Replacement > Page 11268
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Hydraulic
Control Assembly - Antilock Brakes > Component Information > Service and Repair > Brake Pressure Modulator Valve
Replacement > Page 11269
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Hydraulic
Control Assembly - Antilock Brakes > Component Information > Service and Repair > Brake Pressure Modulator Valve
Replacement > Page 11270
Hydraulic Control Assembly - Antilock Brakes: Service and Repair Brake Pressure Modulator Valve
Bracket Replacement
Brake Pressure Modulator Valve Bracket Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Lateral
Accelerometer > Component Information > Locations
Lateral Accelerometer: Locations
Center of the Floor
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Lateral
Accelerometer > Component Information > Locations > Page 11274
Lateral Accelerometer: Diagrams
Yaw Rate and Lateral Acceleration Sensor
Yaw Rate and Lateral Acceleration Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Steering Angle
Sensor, Traction Control > Component Information > Service and Repair
Steering Angle Sensor: Service and Repair
Steering Angle Sensor Centering
The steering angle sensor does not require centering often. Centering of the steering angle sensor
might be required after certain service procedures are performed. Some of these procedures are
as follows:
* Steering gear replacement
* Steering column replacement
* Steering angle sensor replacement
* Intermediate shaft replacement
* Antilock brake system (ABS) controller replacement
* Collision or other physical damage
The steering angle sensor centering procedure can be preformed with a scan tool in the automated
center procedure by the following:
1. Using the steering wheel, align the front wheels forward. 2. Set the transmission in the PARK
position. 3. Install the scan tool to the data link connector (DLC). 4. Turn the ignition switch ON,
with the engine OFF. 5. Select Chassis/EBCM control system vehicle stability enhancement
system (VSES), special function test, and Steering Pos. Sensor Calibration. 6. Follow the scan tool
directions to complete the automated centering procedure this should include turning the steering
wheel left 5 degrees and
right 5 degrees and then straight forward.
7. Clear any DTCs that may be set. Perform the Diagnostic System Check to verify no current
DTCs. 8. Centering of the steering angle sensor is complete.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Traction
Control Switch > Component Information > Diagrams
Traction Control Switch: Diagrams
Traction Control Switch
Traction Control Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Traction
Control Switch > Component Information > Diagrams > Page 11281
Traction Control Switch: Service and Repair
Traction Control Switch Replacement
Removal Procedure
1. Remove the instrument panel (I/P) trim bezel.
2. Carefully release the retaining tabs and remove the traction control switch from the trim bezel.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Traction
Control Switch > Component Information > Diagrams > Page 11282
1. Install the traction control switch to the trim bezel. Ensure that the retaining tabs are fully
engaged.
2. Install the instrument panel (I/P) trim bezel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Wheel Speed
Sensor > Component Information > Locations
Wheel Speed Sensor: Locations
Rear ABS Sensors
1 - Rear Cradle 2 - Wheel Speed Sensor (WSS) LR 3 - Wheel Speed Sensor (WSS) RR
LF Suspension
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Wheel Speed
Sensor > Component Information > Locations > Page 11286
1 - C104 Left Shown, C105 Right Similar 2 - Wheel Speed Sensor (WSS) - LF, RF Similar
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Wheel Speed
Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - LF
Wheel Speed Sensor - LF
Reverse Lockout Solenoid
Wheel Speed Sensor - LF
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Wheel Speed
Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF > Page 11289
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - LR
Wheel Speed Sensor - LR
Wheel Speed Sensor - LR
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Wheel Speed
Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF > Page 11290
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - RF
Wheel Speed Sensor - RF
Reverse Lockout Solenoid
Wheel Speed Sensor - RF
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Wheel Speed
Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF > Page 11291
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - RR
Wheel Speed Sensor - RR
Wheel Speed Sensor - RR
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Wheel Speed
Sensor > Component Information > Service and Repair > Front Wheel Speed Sensor Replacement
Wheel Speed Sensor: Service and Repair Front Wheel Speed Sensor Replacement
Front Wheel Speed Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Wheel Speed
Sensor > Component Information > Service and Repair > Front Wheel Speed Sensor Replacement > Page 11294
Wheel Speed Sensor: Service and Repair Rear Wheel Speed Sensor Replacement
Rear Wheel Speed Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Yaw Rate
Sensor > Component Information > Locations
Yaw Rate Sensor: Locations
Center of the Floor
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Yaw Rate
Sensor > Component Information > Locations > Page 11298
Yaw Rate Sensor: Diagrams
Yaw Rate and Lateral Acceleration Sensor
Yaw Rate and Lateral Acceleration Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Yaw Rate
Sensor > Component Information > Locations > Page 11299
Yaw Rate Sensor: Service and Repair
Yaw Rate Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Brake Bleeding > System Information > Service and Repair >
Antilock Brake System Automated Bleed Procedure
Brake Bleeding: Service and Repair Antilock Brake System Automated Bleed Procedure
Antilock Brake System Automated Bleed Procedure Caution: Refer to Brake Fluid Irritant Caution .
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
Important: Before performing the antilock brake system (ABS) Automated Bleed Procedure, first
perform a manual or pressure bleed of the base brake system. The automated bleed procedure is
recommended when one of the following conditions exist:
* Base brake system bleeding does not achieve the desired pedal height or feel
* Extreme loss of brake fluid has occurred
* Air ingestion is suspected in the secondary circuits of the brake modulator assembly
The ABS Automated Bleed Procedure uses a scan tool to cycle the system solenoid valves and run
the pump in order to purge any air from the secondary circuits. These circuits are normally closed
off, and are only opened during system initialization at vehicle start up and during ABS operation.
The automated bleed procedure opens these secondary circuits and allows any air trapped in
these circuits to flow out toward the brake corners.
Automated Bleed Procedure
Notice: The Auto Bleed Procedure may be terminated at any time during the process by pressing
the EXIT button. No further Scan Tool prompts pertaining to the Auto Bleed procedure will be
given. After exiting the bleed procedure, relieve bleed pressure and disconnect bleed equipment
per manufacturers instructions. Failure to properly relieve pressure may result in spilled brake fluid
causing damage to components and painted surfaces.
1. Raise and support the vehicle. 2. Remove all 4 tire and wheel assemblies. 3. Inspect the brake
system for leaks and visual damage. Repair or replace components as needed. 4. Lower the
vehicle. 5. Inspect the battery state of charge. 6. Install a scan tool. 7. Turn the ignition ON, with the
engine OFF. 8. With the scan tool, establish communications with the ABS system. Select Special
Functions. Select Automated Bleed from the Special Functions
menu.
9. Raise and support the vehicle.
10. Following the directions given on the scan tool, pressure bleed the base brake system. 11.
Follow the scan tool directions until the desired brake pedal height is achieved. 12. If the bleed
procedure is aborted, a malfunction exists. Perform the following steps before resuming the bleed
procedure:
* If a DTC is detected, refer to Diagnostic Trouble Code (DTC) List - Vehicle , and diagnose the
appropriate DTC.
* If the brake pedal feels spongy, perform the conventional brake bleed procedure again.
13. When the desired pedal height is achieved, press the brake pedal to inspect for firmness. 14.
Lower the vehicle. 15. Remove the scan tool. 16. Install the tire and wheel assemblies. 17. Inspect
the brake fluid level. 18. Road test the vehicle while inspecting that the pedal remains high and
firm.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Brake Bleeding > System Information > Service and Repair >
Antilock Brake System Automated Bleed Procedure > Page 11304
Brake Bleeding: Service and Repair Hydraulic Brake System Bleeding
Manual
Hydraulic Brake System Bleeding (Manual)
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Place a clean shop cloth beneath the brake master cylinder to catch brake fluid spills. 2. With the
ignition OFF and the brakes cool, apply the brakes 3-5 times, or until the brake pedal effort
increases significantly, in order to deplete the
brake booster power reserve.
3. If you have performed a brake master cylinder bench bleeding on this vehicle, or if you
disconnected the brake pipes from the master cylinder, or
if you have disconnected the brake pipes from the proportioning valve assembly or the brake
modulator assembly, you must perform the following steps to bleed air at the ports of the hydraulic
component:
1. If removal of the reservoir cap and diaphragm is necessary, clean the outside of the reservoir on
and around the cap prior to removal. 2. With the brake pipes installed securely to the master
cylinder, proportioning valve assembly, or brake modulator assembly, loosen and separate
one of the brake pipes from the port of the component. For the proportioning valve assembly or the
brake modulator assembly, perform these steps in the sequence of system flow; begin with the fluid
feed pipes from the master cylinder.
3. Allow a small amount of brake fluid to gravity bleed from the open port of the component. 4.
Reconnect the brake pipe to the component and tighten securely. 5. Have an assistant slowly
depress the brake pedal fully and maintain steady pressure on the pedal. 6. Loosen the same
brake pipe to purge air from the open port of the component. 7. Tighten the brake pipe, then have
the assistant slowly release the brake pedal. 8. Wait 15 seconds, then repeat steps 3.3-3.7 until all
air is purged from the same port of the component. 9. With the brake pipe installed securely to the
master cylinder, proportioning valve assembly, or brake modulator assembly, and after all air has
been purged from the first port of the component that was bled, loosen and separate the next brake
pipe from the component, then repeat steps 3.3-3.8 until each of the ports on the component has
been bled.
10. After completing the final component port bleeding procedure, ensure that each of the brake
pipe-to-component fittings is properly tightened.
4. Ensure the brake master cylinder reservoir remains at least half-full during this bleeding
procedure. Add fluid as needed to maintain the proper
level. Clean the outside of the reservoir on and around the reservoir cap prior to removing the cap
and diaphragm.
5. Install a proper box-end wrench onto the RIGHT REAR wheel hydraulic circuit bleeder valve. 6.
Install a transparent hose over the end of the bleeder valve. 7. Have an assistant slowly depress
the brake pedal fully and maintain steady pressure on the pedal. 8. Loosen the bleeder valve to
purge air from the wheel hydraulic circuit. 9. Tighten the bleeder valve, then have the assistant
slowly release the brake pedal.
10. Wait 15 seconds, then repeat steps 8-10 until all air is purged from the same wheel hydraulic
circuit. 11. With the right rear wheel hydraulic circuit bleeder valve tightened securely, and after all
air has been purged from the right rear hydraulic circuit,
install a proper box-end wrench onto the LEFT FRONT wheel hydraulic circuit bleeder valve.
12. Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11. 13. With
the left front wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left front hydraulic circuit,
install a proper box-end wrench onto the LEFT REAR wheel hydraulic circuit bleeder valve.
14. Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11. 15. With
the left rear wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left rear hydraulic circuit,
install a proper box-end wrench onto the RIGHT FRONT wheel hydraulic circuit bleeder valve.
16. Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11. 17. After
completing the final wheel hydraulic circuit bleeding procedure, ensure that each of the 4 wheel
hydraulic circuit bleeder valves is properly
tightened.
18. Slowly depress and release the brake pedal. Observe the feel of the brake pedal. 19. If the
brake pedal feels spongy, repeat the bleeding procedure again. If the brake pedal still feels spongy
after repeating the bleeding procedure,
perform the following steps:
1. Inspect the brake system for external leaks. 2. Pressure bleed the hydraulic brake system in
order to purge any air that may still be trapped in the system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Brake Bleeding > System Information > Service and Repair >
Antilock Brake System Automated Bleed Procedure > Page 11305
20. Turn the ignition key ON, with the engine OFF. Check to see if the brake system warning lamp
remains illuminated.
Important: DO NOT allow the vehicle to be driven until it is diagnosed and repaired.
21. If the brake system warning lamp remains illuminated. Refer to Symptoms - Hydraulic Brakes .
Pressure
Hydraulic Brake System Bleeding (Pressure)
Tools Required
* J 29532 Diaphragm Type Brake Pressure Bleeder, or equivalent
* J 44894-A Brake Pressure Bleeder Adapter
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Place a clean shop cloth beneath the brake master cylinder to catch brake fluid spills. 2. With the
ignition OFF and the brakes cool, apply the brakes 3-5 times, or until the brake pedal becomes
firm, in order to deplete the brake booster
power reserve.
3. If you have performed a brake master cylinder bench bleeding on this vehicle, or if you
disconnected the brake pipes from the master cylinder, or
if you have disconnected the brake pipes from the proportioning valve assembly or the brake
modulator assembly, you must perform the following steps to bleed air at the ports of the hydraulic
component:
1. If removal of the reservoir cap and diaphragm is necessary, clean the outside of the reservoir on
and around the cap prior to removal. 2. With the brake pipes installed securely to the master
cylinder, proportioning valve assembly, or brake modulator assembly, loosen and separate
one of the brake pipes from the port of the component. For the proportioning valve assembly or the
brake modulator assembly, perform these steps in the sequence of system flow; begin with the fluid
feed pipes from the master cylinder.
3. Allow a small amount of brake fluid to gravity bleed from the open port of the component. 4.
Reconnect the brake pipe to the component and tighten securely. 5. Have an assistant slowly
depress the brake pedal fully and maintain steady pressure on the pedal. 6. Loosen the same
brake pipe to purge air from the open port of the component. 7. Tighten the brake pipe, then have
the assistant slowly release the brake pedal. 8. Wait 15 seconds, then repeat steps 3.3-3.7 until all
air is purged from the same port of the component. 9. With the brake pipe installed securely to the
master cylinder, proportioning valve assembly, or brake modulator assembly, and after all air has
been purged from the first port of the component that was bled, loosen and separate the next brake
pipe from the component, then repeat steps 3.3-3.8 until each of the ports on the component has
been bled.
10. After completing the final component port bleeding procedure, ensure that each of the brake
pipe-to-component fittings is properly tightened.
4. Clean the outside of the reservoir on and around the reservoir cap prior to removing the cap and
diaphragm. 5. Install the J 44894-A to the brake master cylinder reservoir. 6. Connect the J 29532 ,
or equivalent, to the J 44894-A . 7. Charge the J 29532 , or equivalent, air tank to 175-205 kPa
(25-30 psi). 8. Open the J 29532 , or equivalent, fluid tank valve to allow pressurized brake fluid to
enter the brake system. 9. Wait approximately 30 seconds, then inspect the entire hydraulic brake
system in order to ensure that there are no existing external brake fluid
leaks. Any brake fluid leaks identified require repair prior to completing this procedure.
10. Install a proper box-end wrench onto the RIGHT REAR wheel hydraulic circuit bleeder valve.
11. Install a transparent hose over the end of the bleeder valve. 12. Loosen the bleeder valve to
purge air from the wheel hydraulic circuit. Allow fluid to flow until air bubbles stop flowing from the
bleeder, then
tighten the bleeder valve.
13. With the right rear wheel hydraulic circuit bleeder valve tightened securely, and after all air has
been purged from the right rear hydraulic circuit,
install a proper box-end wrench onto the LEFT FRONT wheel hydraulic circuit bleeder valve.
14. Install a transparent hose over the end of the bleeder valve, then repeat steps 13-14. 15. With
the left front wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left front hydraulic circuit,
install a proper box-end wrench onto the LEFT REAR wheel hydraulic circuit bleeder valve.
16. Install a transparent hose over the end of the bleeder valve, then repeat steps 13-14. 17. With
the left rear wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left rear hydraulic circuit,
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Brake Bleeding > System Information > Service and Repair >
Antilock Brake System Automated Bleed Procedure > Page 11306
install a proper box-end wrench onto the RIGHT FRONT wheel hydraulic circuit bleeder valve.
18. Install a transparent hose over the end of the bleeder valve, then repeat steps 13-14. 19. After
completing the final wheel hydraulic circuit bleeding procedure, ensure that each of the 4 wheel
hydraulic circuit bleeder valves is properly
tightened.
20. Close the J 29532 , or equivalent, fluid tank valve, then disconnect the J 29532 , or equivalent,
from the J 44894-A . 21. Remove the J 44894-A from the brake master cylinder reservoir. 22.
Slowly depress and release the brake pedal. Observe the feel of the brake pedal. 23. If the brake
pedal feels spongy perform the following steps:
1. Inspect the brake system for external leaks. 2. If equipped with antilock brakes, using a scan
tool, perform the antilock brake system automated bleeding procedure to remove any air that
may have been trapped in the brake pressure modulator valve (BPMV).
24. Turn the ignition key ON, with the engine OFF. Check to see if the brake system warning lamp
remains illuminated.
Important: DO NOT allow the vehicle to be driven until it is diagnosed and repaired.
25. If the brake system warning lamp remains illuminated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Brake Bleeding > System Information > Service and Repair >
Antilock Brake System Automated Bleed Procedure > Page 11307
Brake Bleeding: Service and Repair Hydraulic Brake System Flushing
Hydraulic Brake System Flushing Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Inspect the brake fluid for the following conditions, indicating brake fluid contamination:
* Fluid separation, indicating two types of fluid are present; a substance other than the
recommended brake fluid has been introduced into the brake hydraulic system
- Swirled appearance-Oil-based substance
- Layered appearance-Silicone-based substance
* Fluid discoloration, indicating the presence of moisture or particles that have been introduced into
the brake hydraulic system
- Cloudy appearance-Moisture
- Dark appearance/suspended particles in fluid-Dirt, rust, corrosion, brake dust
2. Inspect the master cylinder reservoir cap diaphragm and the reservoir-to-master cylinder
grommets for swelling, indicating brake fluid
contamination.
3. If the brake fluid WAS contaminated with an oil-based or a silicone-based substance, indicated
by fluid separation and/or a swollen master
cylinder reservoir cap diaphragm and/or swollen reservoir-to-master cylinder grommets, perform
the following:
1. Remove ALL of the following components listed from the vehicle. Each component contains
internal rubber seals/linings which have been
contaminated by the contaminated brake fluid in the brake hydraulic system. Refer to the
procedures indicated:
* Master Cylinder Reservoir Replacement
* Master Cylinder Replacement
* Front Brake Hose Replacement
* Rear Brake Hose Replacement
* Front Brake Caliper Replacement
* Rear Brake Caliper Replacement
* Brake Pressure Modulator Valve Replacement
2. Clean out all the hydraulic brake pipes using denatured alcohol, or equivalent. 3. Dry the brake
pipes using non-lubricated, filtered air. 4. Repair or replace ALL of the following components listed
and install them to the vehicle. Each component contains internal rubber
seals/linings which have been contaminated by the contaminated brake fluid in the brake hydraulic
system. Refer to the procedures indicated:
* Master Cylinder Reservoir Replacement Replace the brake master cylinder reservoir cap
diaphragm.
* Master Cylinder Replacement Also perform the following: Clean the brake master cylinder
reservoir using denatured alcohol, or equivalent, then dry the reservoir using non-lubricated, filtered
air. Inspect the reservoir for cracks and/or damage and replace if necessary.
* Front Brake Hose Replacement
* Rear Brake Hose Replacement
* Front Brake Caliper Replacement
* Rear Brake Caliper Replacement
* Brake Pressure Modulator Valve Replacement
4. If the brake fluid was NOT contaminated with an oil-based or a silicone-based substance, but
WAS contaminated with water or dirt, rust,
corrosion, and/or brake dust, replace the brake master cylinder reservoir cap diaphragm which may
have allowed the moisture or particles to enter the hydraulic system.
5. Pressure bleed the hydraulic brake system; begin the procedure with the pressure bleeder
reservoir filled to the maximum-fill level with the correct
brake fluid as indicated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Brake Bleeding > System Information > Service and Repair >
Antilock Brake System Automated Bleed Procedure > Page 11308
Brake Bleeding: Service and Repair Master Cylinder Bench Bleeding
Master Cylinder Bench Bleeding
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Secure the mounting flange of the brake master cylinder in a bench vise so that the rear of the
primary piston is accessible. 2. Remove the cap from the hose nipple on the master cylinder
reservoir. 3. Install suitable fittings to the master cylinder ports that match the type of flare seat
required and also provide for hose attachment. 4. Install transparent hoses to the fittings, then
route the hoses into the master cylinder reservoir. 5. Ensure that the ends of the transparent hoses
running into the reservoir are fully submerged in the brake fluid. 6. Using a smooth, round-ended
tool, depress and release the primary piston as far as it will travel, a depth of about 25 mm (1 in),
several times.
Observe the flow of fluid coming from the ports. As air is bled from the primary and secondary
pistons, the effort required to depress the primary piston will increase and the amount of travel will
decrease.
7. Continue to depress and release the primary piston until fluid flows freely from the ports with no
evidence of air bubbles. 8. Remove the transparent hoses from the reservoir. 9. Install the cap to
the hose nipple on the reservoir, to prevent fluid loss and contamination.
10. Remove the fittings with the transparent hoses from the master cylinder ports. Wrap the master
cylinder with a clean shop cloth to prevent brake
fluid spills.
11. Remove the master cylinder from the vise.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Brake Pedal Assy > Component Information > Service and
Repair
Brake Pedal Assy: Service and Repair
Brake Pedal Assembly Replacement
Removal Procedure
1. Disconnect the accelerator pedal assembly electrical connector.
2. Remove the retaining clip and washer from the brake pedal. 3. Release the brake booster
pushrod from the brake pedal. 4. Disconnect the brake pedal position sensor electrical connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Brake Pedal Assy > Component Information > Service and
Repair > Page 11312
5. Remove the brake pedal bracket-to-steering column bracket bolt.
6. Remove the brake booster mounting nuts. 7. Position the brake booster forward to clear the
studs from the front of the dash.
8. Loosen, but do not remove, the steering column bracket to cowl nut. 9. While simultaneously
disengaging the brake pedal bracket pilot bushings from the foam insulation panel, pull the brake
pedal assembly back and
toward the center of the vehicle.
10. Remove the brake pedal assembly from the vehicle.
11. Remove the accelerator pedal assembly from the brake pedal bracket.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Brake Pedal Assy > Component Information > Service and
Repair > Page 11313
Installation Procedure
1. Install the accelerator pedal assembly to the brake pedal bracket.
2. Install the brake pedal assembly into the vehicle, while guiding the brake pedal bracket pilot
bushings into the foam insulator panel. 3. Position the booster studs through dash panel.
Notice: Refer to Fastener Notice .
4. Install the brake pedal bracket-to-steering column bracket bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Brake Pedal Assy > Component Information > Service and
Repair > Page 11314
Tighten the bolt to 25 N.m (18 lb ft).
5. Loosely install the brake booster mounting nuts. 6. Apply a thin coating of lithium grease to the
pushrod pin on the brake pedal.
7. Connect the brake booster pushrod to the brake pedal. 8. Install the washer and retaining clip to
the brake pedal.
9. Tighten the vacuum brake booster mounting nuts.
Tighten the nuts to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Brake Pedal Assy > Component Information > Service and
Repair > Page 11315
10. Install the steering column bracket to cowl nut.
Tighten the nuts to 25 N.m (18 lb ft).
11. Connect the brake pedal position sensor electrical connector.
12. Connect the accelerator pedal assembly electrical connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Caliper > Component
Information > Testing and Inspection
Brake Caliper: Testing and Inspection
Brake Caliper Inspection
Caution: Refer to Brake Dust Caution .
Caution: Refer to Brake Fluid Irritant Caution .
1. Inspect the brake caliper housing (1) for cracks, excess wear, and/or damage. If any of these
conditions are present, the brake caliper requires
replacement.
2. Inspect the caliper piston dust boot seal (2) for cracks, tears, cuts, deterioration and/or improper
seating in the caliper body. If any of these
conditions are present, the brake caliper requires overhaul or replacement.
3. Inspect for brake fluid leakage around the caliper piston dust boot seal (2) and on the disc brake
pads. If there is any evidence of brake fluid
leakage, the brake caliper requires overhaul or replacement.
4. Inspect for smooth and complete travel of the caliper piston, or pistons, into the caliper bore, or
bores:
The movement of a caliper piston into a caliper bore should be smooth and even. If a caliper piston
is frozen or difficult to bottom, the caliper requires overhaul or replacement.
* For single piston caliper applications, insert a discarded inner brake pad (2) or block of wood in
front of the piston. Using a large C-clamp (1) installed over the body of the caliper (3) and against
the brake pad or block of wood, slowly bottom the piston in the bore.
* For dual piston caliper applications, insert a discarded inner brake pad (2) or block of wood in
front of the pistons. Using 2 large C-clamps (1) installed over the body of the caliper (3) and against
the brake pad or block of wood, slowly bottom the pistons evenly into the bores.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement
Brake Caliper: Service and Repair Front Brake Caliper Replacement
Front Brake Caliper Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11322
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11323
Brake Caliper: Service and Repair Rear Brake Caliper Replacement
Rear Brake Caliper Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11324
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11325
Brake Caliper: Service and Repair Front Brake Caliper Bracket Replacement
Front Brake Caliper Bracket Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11326
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11327
Brake Caliper: Service and Repair Rear Brake Caliper Bracket Replacement
Rear Brake Caliper Bracket Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11328
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Technical Service Bulletins > Customer Interest for Brake Pad: > 07-05-23-001 > Jun > 07 > Brakes - Front Brake Squeal
On Initial Applications
Brake Pad: Customer Interest Brakes - Front Brake Squeal On Initial Applications
Bulletin No.: 07-05-23-001
Date: June 12, 2007
TECHNICAL
Subject: Front Brake Squeal Noise (Install Front Disc Brake Pad Insulators)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment on a squeal noise coming from the front brakes during the first
couple of brake applies while driving forward. This condition will be more prevalent after a cold
(near-freezing and below) and damp (favorable for frost, snow or rain) night.
Correction
Install front disc brake pad insulators to both inboard pads using the procedure below. These
insulators will clip onto the backing plate of the pad by three metal clips. Each insulator is specific
to the right and left side and are identified by an "R" or "L".
Inspect the fluid level in the brake master cylinder auxiliary reservoir.
If the brake fluid level is midway between the maximum-full point and the minimum allowable level,
no brake fluid needs to be removed from the reservoir before proceeding.
If the brake fluid level is higher than midway between the maximum-full point and the minimum
allowable level, remove brake fluid to the midway point before proceeding.
Raise and support the vehicle.
Remove the tire and wheel assembly.
Install and firmly hand tighten two wheel nuts to opposite wheel studs in order to retain the rotor to
the hub.
Install a large C-clamp over the body of the brake caliper with the C-clamp ends against the rear of
the caliper body and against the outboard brake pad.
Tighten the C-clamp evenly until the caliper piston is compressed into the caliper bore enough to
allow the caliper to slide past the brake rotor.
Remove the C-clamp from the caliper.
Remove the brake caliper lower guide pin bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Technical Service Bulletins > Customer Interest for Brake Pad: > 07-05-23-001 > Jun > 07 > Brakes - Front Brake Squeal
On Initial Applications > Page 11337
Without disconnecting the hydraulic brake flexible hose, pivot the caliper upward and secure the
caliper with heavy mechanics wire, or equivalent.
Install the insulator onto the backing plate of the inboard, piston-side brake pad.
Remove the support, and rotate the brake caliper into position over the disc brake pads and to the
caliper mounting bracket.
Install the lower brake caliper guide pin bolt.
Tighten
Tighten the bolt to 44 N.m (32 lb ft).
Remove the wheel nuts retaining the brake rotor to the hub.
Install the tire and wheel assembly.
Repeat steps 5 through 16 for the other side.
Lower the vehicle.
With the engine OFF, gradually apply the brake pedal approximately 2/3 of its travel distance.
Slowly release the brake pedal.
Wait 15 seconds, then gradually apply the brake pedal approximately 2/3 of its travel distance
again until a firm brake pedal apply is obtained. This will properly seat the brake caliper pistons and
brake pads.
Fill the master cylinder auxiliary reservoir to the proper level.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Technical Service Bulletins > Customer Interest for Brake Pad: > 07-05-23-001 > Jun > 07 > Brakes - Front Brake Squeal
On Initial Applications > Page 11338
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Brake Pad: > 07-05-23-001 > Jun > 07 > Brakes - Front
Brake Squeal On Initial Applications
Brake Pad: All Technical Service Bulletins Brakes - Front Brake Squeal On Initial Applications
Bulletin No.: 07-05-23-001
Date: June 12, 2007
TECHNICAL
Subject: Front Brake Squeal Noise (Install Front Disc Brake Pad Insulators)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment on a squeal noise coming from the front brakes during the first
couple of brake applies while driving forward. This condition will be more prevalent after a cold
(near-freezing and below) and damp (favorable for frost, snow or rain) night.
Correction
Install front disc brake pad insulators to both inboard pads using the procedure below. These
insulators will clip onto the backing plate of the pad by three metal clips. Each insulator is specific
to the right and left side and are identified by an "R" or "L".
Inspect the fluid level in the brake master cylinder auxiliary reservoir.
If the brake fluid level is midway between the maximum-full point and the minimum allowable level,
no brake fluid needs to be removed from the reservoir before proceeding.
If the brake fluid level is higher than midway between the maximum-full point and the minimum
allowable level, remove brake fluid to the midway point before proceeding.
Raise and support the vehicle.
Remove the tire and wheel assembly.
Install and firmly hand tighten two wheel nuts to opposite wheel studs in order to retain the rotor to
the hub.
Install a large C-clamp over the body of the brake caliper with the C-clamp ends against the rear of
the caliper body and against the outboard brake pad.
Tighten the C-clamp evenly until the caliper piston is compressed into the caliper bore enough to
allow the caliper to slide past the brake rotor.
Remove the C-clamp from the caliper.
Remove the brake caliper lower guide pin bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Brake Pad: > 07-05-23-001 > Jun > 07 > Brakes - Front
Brake Squeal On Initial Applications > Page 11344
Without disconnecting the hydraulic brake flexible hose, pivot the caliper upward and secure the
caliper with heavy mechanics wire, or equivalent.
Install the insulator onto the backing plate of the inboard, piston-side brake pad.
Remove the support, and rotate the brake caliper into position over the disc brake pads and to the
caliper mounting bracket.
Install the lower brake caliper guide pin bolt.
Tighten
Tighten the bolt to 44 N.m (32 lb ft).
Remove the wheel nuts retaining the brake rotor to the hub.
Install the tire and wheel assembly.
Repeat steps 5 through 16 for the other side.
Lower the vehicle.
With the engine OFF, gradually apply the brake pedal approximately 2/3 of its travel distance.
Slowly release the brake pedal.
Wait 15 seconds, then gradually apply the brake pedal approximately 2/3 of its travel distance
again until a firm brake pedal apply is obtained. This will properly seat the brake caliper pistons and
brake pads.
Fill the master cylinder auxiliary reservoir to the proper level.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Brake Pad: > 07-05-23-001 > Jun > 07 > Brakes - Front
Brake Squeal On Initial Applications > Page 11345
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Technical Service Bulletins > Page 11346
Brake Pad: Specifications
Front Brakes
Brake Pad Lining Minimum Thickness
.................................................................................................................................................. 2.0
mm 0.080 in
Rear Brakes
Brake Pad Lining Minimum Thickness
.................................................................................................................................................. 2.0
mm 0.080 in
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Technical Service Bulletins > Page 11347
Brake Pad: Testing and Inspection
Brake Pad Inspection
Caution: Refer to Brake Dust Caution .
* Inspect the disc brake pads at regular intervals, or whenever the tire and wheel assemblies are
removed from the vehicle.
* If replacement is necessary, always replace disc brake pads in axle sets.
* Inspect both edges of the disc brake pad friction surfaces (3). The highest rate of wear normally
occurs at the trailing edge of the disc brake pads.
* Inspect the thickness of the disc brake pads (3) in order to ensure that they have not worn
excessively. The disc brake pad wear should be approximately even per axle set.
* Both front and rear disc brake pads have integral, audible wear sensors (1). When the disc brake
pad wear reaches the minimum allowable thickness, the wear sensor contacts the disc brake rotor
(2). The wear indicator will then produce an audible, high-pitched warning noise during wheel
rotation.
* Replace the disc brake pads when the friction surface (3) is worn to within 2 mm (0.080 in) of the
mounting plates.
* Remove the brake calipers and inspect the friction surfaces of the inner and outer disc brake
pads to ensure that they are level. Place the disc brake pad friction surfaces together and measure
the gap between the surfaces. If more than 0.5 mm (0.020 in) gap exists midway between the
length of the disc brake pads, replace the disc brake pads.
* Verify that any disc brake pad shims that may be required are in place and not damaged or
excessively corroded. Replace any missing or damaged shims in order to preserve proper disc
brake performance.
* Replace the disc brake pads if any have separated from the mounting plates.
* Inspect the disc brake pads friction surfaces for cracks, fractures, or damage which may cause
noise or otherwise impair disc brake performance.
* Inspect the noise insulators on the brake pad mounting plate. Replace the brake pads if the noise
insulators have separated from the brake pad mounting plate.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Service and Repair > Front Disc Brake Pads Replacement
Brake Pad: Service and Repair Front Disc Brake Pads Replacement
Front Disc Brake Pads Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Service and Repair > Front Disc Brake Pads Replacement > Page 11350
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Service and Repair > Front Disc Brake Pads Replacement > Page 11351
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Service and Repair > Front Disc Brake Pads Replacement > Page 11352
Brake Pad: Service and Repair Rear Disc Brake Pads Replacement
Rear Disc Brake Pads Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Service and Repair > Front Disc Brake Pads Replacement > Page 11353
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Service and Repair > Front Disc Brake Pads Replacement > Page 11354
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Pad > Component Information >
Service and Repair > Front Disc Brake Pads Replacement > Page 11355
Brake Pad: Service and Repair Brake Pad and Rotor Burnishing
Brake Pad and Rotor Burnishing
Caution: Road test a vehicle under safe conditions and while obeying all traffic laws. Do not
attempt any maneuvers that could jeopardize vehicle control. Failure to adhere to these
precautions could lead to serious personal injury and vehicle damage.
Caution: Refer to Brake Dust Caution .
Burnishing the brake pads and brake rotors is necessary in order to ensure that the braking
surfaces are properly prepared after service has been performed on the disc brake system.
This procedure should be performed whenever the disc brake rotors have been refinished or
replaced, and/or whenever the disc brake pads have been replaced.
1. Select a smooth road with little or no traffic. 2. Accelerate the vehicle to 48 km/h (30 mph).
Important: Use care to avoid overheating the brakes while performing this step.
3. Using moderate to firm pressure, apply the brakes to bring the vehicle to a stop. Do not allow the
brakes to lock. 4. Repeat steps 2 and 3 until approximately 20 stops have been completed. Allow
sufficient cooling periods between stops in order to properly
burnish the brake pads and rotors.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures
Technical Service Bulletin # 00-05-22-002L Date: 090326
Brakes- Disc Brake Warranty Service And Procedures
INFORMATION
Bulletin No.: 00-05-22-002L
Date: March 26, 2009
Subject: Disc Brake Warranty Service and Procedures
Models: 1999-2010 GM Passenger Cars and Light Duty Trucks 2003-2010 HUMMER H2
2006-2010 HUMMER H3 1999-2004 Isuzu Light Duty Trucks (Canada Only) 2005-2009 Saab 9-7X
(Canada Only) 1999-2010 Saturn Vehicles (Canada Only)
EXCLUDING 2009-2010 Chevrolet Corvette ZR1
Supercede: This bulletin is being revised to inform you that due to improvements in vehicle brake
corner and wheel design, assembly plant build processes and dealership required tools like the
On-Car Lathe, measuring for Lateral Run Out (LRO) is no longer a required step when performing
base brake service. Due to this change, you are no longer required to enter the LRO measurement
on the repair order or in the warranty system failure code section. The bulletin information below
and the base brake labor operations have been updated accordingly. Due to this change it is more
important than ever to properly maintain your brake lathe (per the Brake Lathe Calibration
Procedure in this bulletin). Please discard Corporate Bulletin Number 00-05-22-002K (Section 05 Brakes).
For your convenience, this bulletin updates and centralizes all GM's Standard Brake Service
Procedures and Policy Guidelines for brake rotor and brake pad service and wear. For additional
information, the Service Technical College lists a complete index of available Brake courses. This
information can be accessed at www.gmtraining.com > resources > training materials > brakes
courseware index. In Canada, refer to Service Know How course 55040.00V and Hydraulic Brake
Certification program 15003.16H.
Important
PLEASE FAMILIARIZE YOURSELF WITH THESE UPDATES BEFORE PERFORMING YOUR
NEXT GM BRAKE SERVICE.
The following four (4) key steps are a summary of this bulletin and are REQUIRED in completing a
successful brake service.
1. Measure and Document Pre-Service Rotor Thickness* (REQUIRED on Repair Order) determine rotor clean-up/refinish/replace
2. Properly clean ALL brake corner mating surfaces - hub, rotor and wheel
3. Properly clean-up/refinish rotor, measure and document post-service rotor thickness
(REQUIRED on Repair Order)
Important If it is determined the rotor needs to be refinished, verify lathe equipment is properly
calibrated.
4. Properly reassemble the brake corner using proper torque tools, torque specification and torque
sequence - wheel lug nuts.
* The bulletin refers to Minimum Thickness specification as the minimum allowable thickness after
refinish. Always refer to SI to verify the spec stamped on the rotor is the minimum thickness spec
after refinish and not the discard spec.
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Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11360
Bulletin Format
***REPAIR ORDER REQUIRED DOCUMENTATION
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Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11361
Important
When using any one of the brake labor operations listed in this bulletin (except for H9709 - Brake
Burnish), the following two rotor measurements (1. Original Rotor Thickness, 2. Refinished Rotor
Thickness are required and MUST be written/documented on the repair order, or for your
convenience, complete the form (GM Brake Service Repair Order Documentation for Required
Measurements) shown above and attach it to the repair order. If the Warranty Parts Center
generates a request, this Documentation/Form must be attached to the repair order that is sent
back.
Important
Documentation of brake lathe maintenance and calibration as recommended by the lathe
manufacturer must be available for review upon request.
Repair Order Documentation - Rotor Original And Refinished Thickness - REQUIRED
When resurfacing a brake rotor or drum, the ORIGINAL thickness (measured thickness before
refinish) and REFINISHED thickness (measured thickness after refinish) MUST be
written/documented on the repair order hard copy for each rotor serviced. If a rotor replacement is
necessary, only the original thickness measurement needs to be recorded.
Repair Order Documentation - Explanation of Part Replacement - REQUIRED
If replacement of a brake component is necessary, proper documentation on the repair order is
required. See the following examples:
^ Brake rotor replacement - Customer comment was brake pulsation. Rotor was refinished on a
prior brake service. After rotor measurement, it was determined that refinishing the rotor again
would take it under the Minimum Thickness specification.
^ Brake pad replacement - Customer comment was brake squeak noise. On inspection, found pads
contaminated by fluid leak at caliper.
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Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11362
TOOL INFORMATION
CORRECTION PLATE PART INFORMATION
Refer to TSB 01-05-23-001 for the Brake Align(R) application chart.
For vehicles repaired under warranty, Brake Align(R) Run-Out Correction Plates should be
submitted in the Net Amount at cost plus 40%. Brake Align(R) Run-Out Correction Plates are
available through the following suppliers:
- Dealer Equipment and Services
- Brake Align(R) LLC (U.S. Dealers Only)
* We believe this source and their products to be reliable. There may be additional manufacturers
of such products. General Motors does not endorse, indicate any preference for or assume any
responsibility for the products from this firm or for any such items, which may be available from
other sources.
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Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11363
WARRANTY INFORMATION
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Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11364
WORKSHEET - BRAKE LATHE CALIBRATION
Important
Brake lathe calibration should be performed and recorded monthly or if you are consistently
measuring high LRO after rotor refinishing.
Disclaimer
GM Brake Service Procedure
GM BRAKE SERVICE PROCEDURE
1. Remove the wheel and caliper.
2. Measure rotor thickness. In order to determine if the rotor can be refinished, do the following
steps:
Important
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Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11365
If performing routine Brake Service for worn pads only, and the rotors are not damaged and
measure within specification - DO NOT REFINISH ROTORS.
1. Remove the rotor(s).
2. Measure the rotor for original thickness using a brake micrometer. Multiple measure points
should be taken and the lowest measurement
should be recorded.
3. Reference the Minimum Thickness specification stamped on the backside of the rotor or SI for
Minimum Thickness specification/other. In
most cases, the rotor should be refinished unless the measurement taken makes it obvious that
refinishing the rotor would take the measurement under the Minimum Thickness specification (then
replacement is necessary). DO NOT use any other manufacturers rotor specifications.
3. ***Record the lowest ORIGINAL rotor thickness measurement on the repair order hard copy as
noted in the "Repair Order Documentation - Rotor
Refinish" section of this bulletin.
4. Clean all of the mating surfaces between the hub, the rotor and the wheel using the J 42450A Wheel Hub Cleaning Kit and J 41013 - Whiz
Wheel(R).
If rotors are not to be refinished - Go To Step 8.
Important Cleaning all mating surfaces and making them free of corrosion, burrs and other debris
(which includes removal of Hubless rotors) is critical and MUST be performed whether using an
On-Car or Bench Lathe Refinish Procedure.
5. Be sure to follow the appropriate refinishing procedure listed below for the type of lathe you are
using.
Important Only replace the rotors if they do not meet the Minimum Thickness specification.
Important DO NOT REFINISH NEW ROTORS.
Important Only remove the necessary amount of material from each side of the rotor and note that
equal amounts of material do not have to be removed from both sides on any brake system using a
floating caliper.
Important Prior to making the cut, install the recommended clip-on style disc silencer supplied with
the lathe. Use of this silencer is critical to prevent chatter from occurring during the cut.
Bench Type Lathe
1. Refinish the existing rotor on an approved, well-maintained lathe to guarantee smooth, flat and
parallel surfaces.
2. Check for clean and true lathe adapters and make sure the arbor shoulder is clean and free of
debris or burrs. For more information, see the
"Brake Lathe Calibration Procedure (Bench-Type)" section in this bulletin.
3. On the outboard area of the rotor, position the cutting tools one eighth of an inch into the brake
pad area of the rotor. Feed the cutting tools
into the rotor until they cut the rotor to new metal, a full 360 degrees. Zero each dial and back off a
full turn
4. Move the cutting bits to the middle of the rotor and do the same procedure. If zero is passed
during the process, reset zero. Back off a full turn.
5. Position the cutting bits one eighth of an inch inside the inboard (closest to the hub) edge of the
brake pad contact area. Do the same
procedure. If zero is passed during the process, reset zero.
6. Back off a full turn and position the cutting bits all the way inboard in preparation to refinish the
full rotor surface. Advance both tool cutters to the
zero setting plus just enough to clean up the entire rotor surface.
7. After completing the refinish, sand both sides of the rotor for approximately one minute per side
using a sanding block and 130-150 grit sandpaper
to obtain a non-directional finish.
On-Car Type Lathe
1. Reinstall the rotor(s).
Important
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Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11366
When using the On-Car lathe on vehicles equipped with limited slip (or posi-trac) rear system, it is
critical that the rear drive shaft is disconnected/disengaged prior to operation of the On-Car lathe.
Remember to mark and re-index the drive shaft correctly on re-assembly to prevent creating
driveline vibration. Whenever the lathe drive motor is being switched on, the operator MUST keep
their body out of the wheel well area until the machine has reached its normal operating RPM.
2. Refinish the existing rotor on an approved, well-maintained lathe to guarantee smooth, flat and
parallel surfaces.
Important When raising the vehicle on the lift, be sure to have it at a good working height (waist
high is average) to accommodate mounting the On-Car lathe. Optimally, the center piston on the
lathe trolley will be mid-travel. If the lathe trolley center piston is completely compressed (bottoming
out) or inversely fully extended and hanging off the vehicle hub, this could affect the calibration time
of the lathe.
3. Select the correct adapter for the vehicle you're working on and mount it to the hub with the
vehicle lug nuts. Hand tighten 34-41 Nm (25-30 lb
ft) the nuts using equal torque. DO NOT use impact wrenches, excessive torque will damage the
adapter.
Important Ensure the adapter sits flush on the rotor hat surface. Be sure to remove any rust, rotor
retaining clips, etc. that may preclude the adapter from sitting flat on the mounting surface.
4. Connect the lathe to the adapter, turn on the lathe and activate the computer to compensate for
run-out in the hub.
5. Once the computer indicates the compensation process was successful, on the outboard area of
the rotor, position the cutting tools one eighth
of an inch into the brake pad area of the rotor. Feed the cutting tools into the rotor until they cut the
rotor to new metal, a full 360 degrees. Zero each dial and back off a full turn.
6. Move the cutting bits to the middle of the rotor and do the same procedure. If zero is passed
during the process, reset zero. Back off a full turn.
7. Position the cutting bits one eighth of an inch inside the inboard (closest to the hub) edge of the
brake pad contact area. Do the same
procedure. If zero is passed during the process, reset zero.
8. Back off a full turn and position the cutting bits all the way inboard in preparation to refinish the
full rotor surface. Advance both tool cutters
to the zero setting plus just enough to clean up the entire rotor surface.
9. After completing the refinish, sand both sides of the rotor for approximately one minute per side
using a sanding block and 130-150 grit
sandpaper to obtain a non-directional finish.
10. Dismount the lathe, but leave the lathe adapter attached to the vehicle.
6. Once the rotor has been properly machined, wash the rotor with soap and water (use a mild dish
washing soap) or wipe it clean with GM approved
brake cleaner, P/N 88862650 (Canadian P/N 88901247).
Important Thoroughly cleaning the rotor will prevent the possible transfer of finite metal dust left as
a by-product of machining to the pad material during the seating process, thus reducing the
opportunity for squeaks or other noises to occur.
7. ***Record the REFINISHED rotor thickness measurement on the repair order hard copy. Refer
to the "Repair Order Documentation - Rotor
Refinish" section of this bulletin.
8. Setting up to measure for Lateral Run Out (LRO):
Important Measuring for Lateral Run Out (LRO) (steps 8 - 15) is no longer required however, these
steps are being left in the overall procedure as a good check to be performed in the case of a
repeat pulsation complaint. If you are not checking for LRO, go to step 16.
Bench-Type Lathe
1. Ensure that the mating surfaces of the rotor hat section and the hub mating surface are clean
and free of debris.
2. Mount the new, original or refinished rotor onto the vehicle hub.
Important Always hold the rotor on the bottom half so any debris that may be dislodged from the
vents will fall out instead of falling into the mounting area. Any movement or jarring from the rotor
falling over on the studs can release rust from the vents on the rotor.
3. Tilt the top of the rotor in towards the vehicle so you can see the studs and ease the rotor onto
the studs.
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Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11367
4. Slide the rotor all the way to the hub and hold it in place until you have placed one of the conical
washers (with the tapered hole side facing
out) and run the first lug nut up tight by hand so the rotor doesn't move when you release it.
5. Place the conical washers on the rest of the studs (with the tapered hole side facing out), start
and snug the lug nuts by hand.
6. Using the one half inch drive impact wrench and a torque stick (J 39544) or equivalent, start with
the lug nut opposite of the one you first
tightened by hand and tighten the lug nuts using a star pattern until they touch the hub but do not
completely torque. Then again, starting with the first lug nut you tightened by hand, tighten all the
lug nuts in a star pattern to the specific vehicle torque specification.
7. DO NOT reinstall the caliper or the wheel at this time.
On-Car Type Lathe
1. Leave the On-Car adapter on the wheel.
2. Proceed to Step 9.
9. Fasten the dial indicator to the steering knuckle so that the indicator needle contacts the rotor
outboard friction surface approximately 6.35 mm
(0.25 in) from the rotor's outer edge. The stylus should be perpendicular to the friction surface of
the rotor.
Important Make sure the dial indicator needle tip is screwed tight, a loose tip could cause false
readings.
10. Measure for LRO. Follow the procedure below to determine if the LRO is within specification
(0.050 mm (0.002 in) or LESS).
1. Rotate the rotor and locate the point on the rotor where the lowest dial indicator reading is
indicated and set the dial indicator to zero.
2. Rotate the rotor from the low point and locate the point with the highest dial indicator reading
(rotor "high spot"). Note the amount and mark
the location of the "high spot" on the rotor and mark the closest wheel stud relative to this location.
If the high point falls between two studs, mark both studs. In instances where the vehicle has
"capped lug nuts" you should mark the hub.
11. If the Lateral Run Out (LRO) measurement is 0.050 mm (0.002 in) or LESS, no correction is
necessary. Go to Step 15 if this is the first rotor
completed. Go to Step 16 if this is the second rotor completed. If the LRO is GREATER than 0.050
mm (0.002 in), go to Step 12.
12. If the LRO measurement is greater than 0.050 mm (0.002 in), use the following procedure to
correct for LRO:
Important If the LRO measurement is over 0.279 mm (0.011 in), determine the source or cause of
the LRO and correct it (i.e. verify drive axle nut torque specification, refinished rotor is source of
LRO due to a lathe qualification issue - see "Brake Lathe Calibration Procedure").
Hubless Rotor
1. Remove the rotor and using the Brake Align(R) application chart (found in TSB 01-05-23-001B),
choose the correct plate to bring the rotor
LRO to 0.050 mm (0.002 in) or less. The plates come in 0.0762 mm (0.003 in), 0.1524 mm (0.006
in) and 0.2286 (0.009 in) compensation. For more information on proper plate selection, see the
instruction video/DVD included in the "Brake Align(R)" kit or TSB 01-05-23-001B.
2. Align the V-notch of the selected Brake Align(R) correction plate to the marked wheel stud ("high
spot") or between the two points marked (if
the "high spot" is between two wheel studs).
Important IF Brake Align(R) Correction Plates are not available for the vehicle being serviced, refer
to SI Document - Brake Rotor Assembled Lateral Runout Correction for correcting LRO.
Important Per Brake Align(R) manufacturer, NEVER attempt to stack two or more Correction Plates
together on one hub. NEVER attempt to reuse a previously installed Correction Plate.
3. Reinstall the rotor using the same method and precautions as the first time - found in Step 8.
Make sure to index the rotor correctly to the
marks made in step 10, otherwise LRO will be comprised.
Hubbed / Captured / Trapped Rotor
1. Measure the rotor thickness.
2. Refinish or replace the rotor (see Service Information for further details).
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Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11368
13. Use a Dial Indicator to measure the rotor to verify the LRO is within specification.
14. If using,
BENCH LATHE - DO NOT remove conical washers and lug nuts at this time.
ON-CAR LATHE - You must remove adapter and install conical washers and lug nuts to retain
rotor position.
Important For Hubless rotor design, while removing the adapter, you must hold the rotor tight to the
hub and install the top conical washer and lug nut first to ensure no debris falls between the
surface while removing the adapter. Then, install the remaining conical washers and lug nuts.
Otherwise, LRO will be comprised.
15. Perform Steps 1 through 7 on the opposite side of the vehicle (steps 1-12, if performing LRO).
16. Reinstall the rotors on both sides of the vehicle and perform the following steps:
1. Reinstall the calipers and pads.
2. Pump the brakes to pressurize the calipers.
3. Remove the lug nuts/conical washers.
4. Install and properly torque the wheels.
Important It is critical to follow the star pattern wheel torque procedure and use the proper tools
(torque stick or torque wrench) as referenced in SI.
17. Road test the vehicle to verify the repairs.
Brake Lathe Calibration Procedure
BRAKE LATHE CALIBRATION PROCEDURE
Calibration of the brake lathe should be performed and recorded monthly or whenever post-service
brake rotor LRO measurements are consistently reading above specification.
BENCH-TYPE LATHE
Use the following procedure to calibrate a Bench-type brake lathe:
1. After refinishing a rotor, loosen the arbor nut and while holding the inside bell clamp to keep it
from rotating, rotate the rotor 180 degrees.
2. Retighten the arbor nut and set the dial indicator on the rotor using the same instructions as
checking the run out on the vehicle.
3. Rotate the arbor and read the runout.
4. Divide the reading by two and this will give you the amount of runout the lathe is cutting into the
rotor.
Important If there is any runout, you will need to machine the inside bell clamp in place on the lathe
(this procedure is for a Bench type lathe ONLY, DO NOT machine inside the bell clamp on an
On-Car type lathe).
Machining the Inside Bell Clamp (Bench Type Lathe Only)
Any nicks or burrs on the shoulder of the arbor must be removed. An 80-grit stone can be used to
accomplish this. Spray WD-40(R) on the shoulder and with the lathe running, hold the stone flat
against the shoulder surface using slight pressure. When the burrs are gone, clean the surface.
Burrs must also be removed from the hub of the inside bell clamp. This can be accomplished with
the stone and WD-40(R). Keep the stone flat on the hub while removing the burrs. After removing
the burrs, clean the hub.
Place the bell clamp on the arbor of the lathe and use the small radius adapters first and then
spacers to allow you to tighten the arbor nut to secure the bell clamp to the lathe. Position the tool
bit in the left hand of the rotor truer so you can machine the face of the bell clamp. Machine the
face of the bell clamp taking just enough off of it to cut the full face of the clamp the full 360
degrees. Before you loosen the arbor nut, match mark the hub of the bell clamp to the arbor and
line up these marks before machining a rotor. A magic marker can be used to make the match
marks. Machine a rotor and recheck the calibration. Repeat this procedure on all Inside Bell
Clamps used.
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Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11369
Important
If runout is still present, contact the brake lathe supplier.
ON-CAR TYPE LATHE
Use the following procedure to calibrate an On-Car brake lathe:
1. Connect the lathe to a vehicle using the appropriate adapter.
2. Attach a vise-grip dial indicator to a fixed point in the wheel well and bring the dial indicator to a
flat surface on the cutting head.
3. Turn on the lathe and press the "start" button so the lathe begins to compensate.
4. Once compensation is complete, note the runout as measured by the dial indicator. Measured
runout at this point is overstated given that it is
outside the rotor diameter.
5. If runout is in excess of 0.1016 mm (0.004 in) (0.050 mm (0.002 in) as measured within the rotor
diameter), calibration must be tightened. Follow
manufacturer's instructions for tightening the calibration of the lathe. This information is found in the
manual supplied with the lathe.
Important If the machine is taking a long time to compensate during normal use, prior to checking
the lathe calibration, it is recommended that the machine be disconnected from the adapter and the
adapter (still connected to the vehicle) is rotated 180 degrees and the machine reattached. This will
accomplish two things: - It will re-verify the machine is properly attached to the adapter. - It will
change the location of the runout (phase) relative to the machine and thus possibly allow for quick
compensation as a result of the position change.
The following information has been added as a reference to ensure your Pro-Cut PFM lathe
provides a consistent smooth surface finish over long term usage.
Cutting Tips / Depth of Cut / Tip Life
The cutting tips must be right side up. Reference marks always face up. The cutting tips may not
have chips or dings in the surface of the points. Cuts of 0.1016-0.381 mm (0.004-0.015 in) will
provide the best surface finish and the optimal tip life. When cleaning or rotating the cutting bits,
make sure that the seat area for the tip on the tool is free and clear of debris.
Cutting Head
On each brake job, the technician must center the cutting head for that particular vehicle using one
of the mounting bolt holes on the slide plate. Once the head is centered, it is vital that the
technician use one hand to push the head firmly and squarely back into the dovetail on the slide
plate while using the other hand to tighten the Allen-Hex bolt that secures the head. Failure to do
this could result in chatter occurring during the cut.
Tool Holder Plate (Cutting Head)
The tool holder plate is the plate that the cutting arms are attached to. It can bend or break if a
technician accidently runs the cutting arms into the hub of the rotor while the rotor is turning. (Cuts
of more than 0.508 mm (0.020 in) can also bend this plate). Once bent, the lathe will most likely not
cut properly until the tool holder plate is replaced. In order to verify the condition of the tool holder
plate on a machine that will not cut right, remove the mounting bolt and remove the cutting head
from the slide plate. With the cutting head titled at an angle, lay the long edge of the tool holder
plate down on the flat part of the slide plate. If any gap can be seen between the edge and the slide
plate, the tool holder plate is bent and the source of vibration. Also check to ensure that the cutting
arms are lying flat on the upper side of the tool holder plate. If the mounting arm post is bent, it will
show itself by having the back of the cutting arm lifting off the surface of the tool holder.
Gib Adjustment / Loose Gib
As wear occurs between the slide plate and the box it rides on, you must take up the slack. You do
this by way of a moveable wedge, which we call the gib. Your lathe manual details adjustment
process, which you should perform when required after monthly checks or whenever surface finish
is inconsistent.
Brake Pulsation
BRAKE PULSATION
Brake pulsation is caused by brake rotor thickness variation. Brake rotor thickness variation causes
the piston in the brake caliper, when applied, to "pump" in and out of the caliper housing. The
"pumping" effect is transmitted hydraulically to the brake pedal. Brake pulsation concerns may
result from two basic conditions:
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Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11370
1. Thickness Variation Pulsation is Caused by Lateral Run Out (LRO). LRO on a brake corner
assembly is virtually undetectable unless measured
(with a dial indicator after the brake service) and will not be detected as brake pulsation during an
after brake service test drive. If the brake corner is assembled with excessive LRO (greater than
0.050 mm (0.002 in), thickness variation will develop on the brake rotor over time and miles.
Excessive LRO will cause the brake pads to wear the brake rotors unevenly, which causes rotor
thickness variation. Pulsation that is the result of excessive Lateral Run Out usually develops in
4,800-16,000 km (3,000-10,000 mi). The more excessive the LRO, the faster the pulsation will
develop. LRO can also be induced when uneven torque is applied to wheel nuts (lug nuts).
Improper wheel tightening after tire rotation, spare tire usage, brake inspection, etc. can be the
cause of brake pulsation. Again, it usually takes 4,800-16,000 km (3,000-10,000 mi) AFTER the
service event for the condition to develop. The customer does not usually make the connection
between the service event and the awareness of the pulsation. The proper usage of torque
wrenches and/or torque sticks (torque limiting sockets) will greatly reduce or eliminate the pulsation
conditions after wheel service events. The improper use of impact wrenches on wheel nuts greatly
increases the likelihood of pulsation after wheel service.
The following are examples of pulsation conditions and reimbursement recommendations:
- If the customer noticed the condition between 4,800-16,000 km (3,000-10,000 mi) and it gradually
got worse, normally the repair would be covered. The customer may tolerate the condition until it
becomes very apparent.
- If a GM dealer performed a prior brake service, consider paying for the repair and then strongly
reinforce proper brake lathe maintenance.
- If the customer had the brake service done outside of a GM dealership, normally GM would not
offer any assistance.
- If a customer indicated they had wheel service, ask who performed the service. Then;
- If a GM dealer performed the service, consider paying for the repair and then strongly reinforce
the use of torque sticks at the dealer. Two common size torque sticks cover 90% of all GM
products. Each technician needs to use torque sticks properly every time the wheel nuts are
tightened.
- If the customer had the wheel service done outside of a GM dealership, normally GM would not
offer any assistance.
2. Thickness Variation Pulsation Caused by Brake Rotor Corrosion - Rotor corrosion is another
form of thickness variation, which can cause a
pulsation concern and can be addressed as follows:
- Cosmetic Corrosion:
In most instances rotor corrosion is cosmetic and refinishing the rotor is unnecessary.
- Corrosion - Pulsation Caused by Thickness Variation (Lot Rot / Low Miles - 0-321 km (0-200 mi):
At times more extensive corrosion can cause pulsation due to thickness variation. This usually
happens when the vehicle is parked for long periods of time in humid type conditions and the
braking surface area under the pads corrodes at a different rate compared to the rest of the braking
surface area. Cleaning up of braking surfaces (burnishing) can be accomplished by 10 - 15
moderate stops from 56- 64 km/h (35 - 40 mph) with cooling time between stops. If multiple
moderate braking stops do not correct this condition, follow the "Brake Rotor Clean-Up Procedure"
below.
- Corrosion - Pulsation Caused by Thickness Variation (without rotor flaking / higher mileage 3,200-8,000 km (2,000-5,000 mi):
In some cases, more extensive corrosion that is not cleaned up by the brake pad over time and
miles can cause the same type of pulsation complaint due to thickness variation. In these cases,
the rotor surface is usually darker instead of shiny and a brake pad foot print can be seen against
the darker surface. This darker surface is usually due to build-up, on the rotor material surface,
caused by a combination of corrosion, pad material and heat. To correct this condition, follow the
"Brake Rotor Clean-up Procedure" below.
- Corrosion - Pulsation Caused by Thickness Variation (with rotor flaking / higher mileage - 8,000 +
km (5,000 + miles) :
At times, more extensive corrosion over time and miles can cause pulsation due to thickness
variation (flaking). This flaking is usually a build up, mostly on the rotor material surface, caused by
a combination of corrosion, pad material and heat. When rotor measurements are taken, the low
areas are usually close to the original rotor thickness (new rotor) measurement and the high areas
usually measure more than the original rotor thickness (new rotor) measurement (depending on
mileage and normal wear). To correct this condition, follow the "Brake Rotor Clean-up Procedure"
described below.
Important In some flaking instances, cleaning-up this type of corrosion may require more rotor
material to be removed then desired. Customer consideration should be taken in these situations
and handled on a case by case basis, depending on the amount/percentage of rotor life remaining
and the vehicle's warranty time and miles.
Brake Rotor Clean-Up Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11371
BRAKE ROTOR CLEAN-UP PROCEDURE
Clean-up the rotors on an approved, well-maintained brake lathe to guarantee smooth, flat and
parallel surfaces. Check for clean and true lathe adapters and make sure the arbor shoulder is
clean and free of debris or burrs. For more information see the "Brake Lathe Calibration Procedure"
section in this bulletin.
1. On the outboard area of the rotor, position the cutting tools one eighth of an inch into the brake
pad area of the rotor. Feed the cutting tools into the
rotor until they cut the rotor to new metal, a full 360 degrees. Zero each dial and back off a full turn.
2. Move the cutting bits to the middle of the rotor and do the same procedure. If zero is passed
during the process, reset zero. Back off a full turn.
3. Position the cutting bits one eighth of an inch inside the inboard (closest to the hub) edge of the
brake pad contact area. Do the same procedure. If
zero is passed during the process, reset zero.
4. Back off a full turn and position the cutting bits all the way inboard in preparation to refinish the
full rotor surface. Advance both tool cutters to the
zero setting plus just enough to clean up the entire rotor surface.
5. After completing the refinish, sand both sides of the rotor for approximately one minute per side
using a sanding block and 130-150 grit sandpaper
to obtain a non-directional finish.
Important Only remove the necessary amount of material from each side of the rotor and note that
equal amounts of material do not have to be removed from both sides on any brake system using a
floating caliper.
Important In many of these instances, such a minimal amount of material is removed from the rotor
that customer satisfaction is not a concern for future brake services. This procedure is intended to
"Clean-up" the rotor surface and should be conveyed to the customer as such - not as "cut",
"refinish" or "machine", which tends to be terms understood as a substantial reduction of rotor
material/life. If the brake lathe equipment being used is not capable of removing minor amounts of
material while holding tolerances, further lathe maintenance, repair, updates or equipment
replacement may be necessary.
Brake Noise
BRAKE NOISE
Some brake noise is normal and differences in loading, type of driving, or driving style can make a
difference in brake wear on the same make and model. Depending on weather conditions, driving
patterns and the local environment, brake noise may become more or less apparent. Verify all
metal-to-metal contact areas between pads, pad guides, caliper and knuckles are clean and
lubricated with a thin layer of high temperature silicone grease. Brake noise is caused by a
"slip-stick" vibration of brake components. While intermittent brake noise may be normal,
performing 3 to 4 aggressive stops may temporarily reduce or eliminate most brake squeal. If the
noise persists and is consistently occurring, a brake dampening compound may be applied to the
back of each pad. This allows parts to slide freely and not vibrate when moving relative to each
other. Use Silicone Brake Lubricant, ACDelco P/N 88862181 (Canadian P/N 88862496) or
equivalent.
The following noises are characteristics of all braking systems and are unavoidable. They may not
indicate improper operation of the brake system.
Squeak/Squeal Noise:
- Occurs with front semi-metallic brake pads at medium speeds when light to medium pressure is
applied to the brake pedal.
- Occasionally a noise may occur on rear brakes during the first few stops or with cold brakes
and/or high humidity.
Grinding Noise:
- Common to rear brakes and some front disc brakes during initial stops after the vehicle has been
parked overnight.
- Caused by corrosion on the metal surfaces during vehicle non-use. Usually disappears after a few
stops.
Groan Noise:
A groan type noise may be heard when stopping quickly or moving forward slowly from a complete
stop. This is normal. On vehicles equipped with ABS, a groan or moan type noise during hard
braking applications or loose gravel, wet or icy road conditions is a normal function of the ABS
activation.
Key Points - Frequently Asked Questions
KEY POINTS - FREQUENTLY ASKED QUESTIONS
- Q: How do on-car lathes react to Axle Float? Does the play affect the machining of the rotor,
either surface finish or LRO?
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Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11372
A: Because the Pro-Cut on-car lathe adjusts in a live mode while spinning the hub/rotor, the
dynamics of a floating axle are effectively eliminated. Once the lathe is compensated, there is no
difference in the cutting/surface finish and LRO are just the same as with a non-floating axle.
- Q: Which lathe is essential for performing brake work, the bench or on-car?
A: Dealers must have a well maintained bench lathe and well maintained on-car lathe. These
lathes need to be calibrated on a monthly basis. BOTH lathes are essential to providing quality
brake service.
- Q: What is the expected tip life for an on-car lathe?
A: The geometry and composition of the Pro-Cut tips are designed for "single pass" cutting. When
using the Pro-Cut the cutting depth should be set to take all material needed to get below rust
grooves, eliminate all run-out and resurface the entire disc in a single pass. Cuts of 0.1016-0.381
mm (0.004-0.015 in) will provide the best surface finish and the optimal tip life. No "skim cut" or
"finish cut" is needed. Failure to follow this procedure will shorten tip life. The Pro-cut tips will last
between 7-12 cuts per corner. With three usable corners, a pair of tips is good for at least 21 cuts.
- Q: Why does GM recommend the use of single pass (referred to as "positive rake") bench and
on-car brake lathes?
A: GM Service and GM Brake Engineering have performed competitive evaluations on a significant
number of bench and on-car brake lathes. These tests measured critical performance
characteristics such as flatness, surface finish and the ability of the lathe to repeat accuracy over
many uses. In each test, single pass lathe designs out performed the competitors. Single pass
brake lathes are more productive requiring less time to perform the same procedure.
- Q: Is it okay to leave the caliper/pads installed while cutting rotors using an on-car lathe?
A: On-car lathes should never be used with the pads and calipers installed on the vehicle. The
debris from cutting the rotors can contaminate the brake pads/calipers which can lead to other
brake concerns and comebacks.
- Q: What information needs to be documented on the Repair Order?
A: Any claim that is submitted using the labor operations in this bulletin, must have the Original
Rotor Thickness and Refinish Rotor Thickness (if refinished) documented on the repair order. For
more information, refer to the "Repair Order Required Documentation" section of this bulletin.
All Warranty Repair Orders paid by GM, are subject to review for compliance and may be debited
where the repair does not comply with this procedure.
Brake Warranty
BRAKE WARRANTY
Brake Rotors:
- Brake rotor warranty is covered under the terms of the GM New Vehicle Limited Warranty.
Reference the vehicle's warranty guide for verification.
- Rotors should not be refinished or replaced during normal/routine pad replacement.
- Rotors should not be refinished or replaced and is ineffective in correcting brake squeal type
noises and/or premature lining wear out.
- Rotors should not be refinished or replaced for cosmetic corrosion. Clean up of braking surfaces
can be accomplished by 10-15 moderate stops from 56-64 km/h (35-40 mph) with cooling time
between stops.
- Rotors should not be refinished or replaced for rotor discoloration/hard spots.
- Rotors should be refinished NOT replaced for Customer Pulsation concerns. This condition is a
result of rotor thickness variation, usually caused by LRO (wear induced over time and miles) or
corrosion (Lot Rot).
- When rotor refinishing, only remove the necessary amount of material from each side of the rotor
and note that equal amounts of material do not have to be removed from both sides on any brake
system using a floating caliper.
- Rotors should be refinished for severe scoring - depth in excess of 1.5 mm (0.060 in).
Important If the scoring depth is more than 1.5 mm (0.060 in) after the rotor is refinished, it should
be replaced.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11373
- It is not necessary to replace rotors in pairs. Rotors may be replaced individually. However,
caution should be exercised, as a variance in surface finish may cause a brake pull condition.
- New rotors should not be refinished before installation. Original equipment rotor surfaces are
ground to ensure smooth finish and parallelism between mounting and friction surfaces. If a new
rotor has more than 0.050 mm (0.002 in) Lateral Run Out (LRO) when properly mounted on the
hub, correct it using one of the following methods:
1. For hubless rotor designs, use the correction plate procedure found in the "GM Brake Service
Procedure for Hubless Rotors" outlined in this
bulletin.
2. For hubbed/trapped/captured rotor designs, refinish the rotor using an On-Car lathe and the
procedure outlined in this bulletin.
- Never reuse rotors that measure under the Minimum Thickness specification. In this instance, the
rotor should be replaced.
Important If the Minimum Thickness specification is not visible on the rotor, reference Service
Information (SI) for the specific vehicle application. DO NOT use any other manufacturers rotor
specifications.
Brake Pads:
Important When determining the warranty coverage (as an example) - if all four front or four rear
brake pads are excessively worn evenly, that would NOT be covered under warranty since this
type of wear is most likely due to driving habits or trailering. However, if the brake pads are
excessively worn un-evenly, side-to-side or same side/inner-to-outer pads, then consideration
should be given to cover this under warranty since this type of wear is most likely due to poor
operation of other braking components.
- Consideration should be given for covering brake pads up to 39,000 km (24,000 mi) (excluding
owner abuse, excessive trailering, or the situations that would not be considered normal use).
- Installation of new rotors does not require pad replacement. Do not replace pads unless their
condition requires it - excessively worn, damage or contaminated.
Brake Wear:
Several factors impact brake lining wear and should be taken into account when reviewing related
issues:
- heavy loads / high temperatures / towing / mountainous driving / city driving / aggressive driving /
driver braking characteristics (left foot or two feet)
The following are conditions that may extend brake lining wear:
- light loads / highway driving / conservative driving / level terrain
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11374
Brake Rotor/Disc: Technical Service Bulletins Brakes - Rotor/Drum Refinishing Labor Operations
Bulletin No.: 06-05-22-007
Date: November 30, 2006
WARRANTY ADMINISTRATION
Subject: Brake Rotor/Drum Refinishing Labor Operations
Models: 2005-2007 GM Passenger Cars and Light Duty Trucks (including Saturn) 2005-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X (Canada Only)
The purpose of this bulletin is to advise dealership personnel of labor operation changes relating to
brake repairs. Existing brake rotor and drum labor operations have been revised to remove the
refinishing times and new labor operations have been established for refinishing brake rotors or
drums. The changes will become effective with the release of the December 2006 Labor Time
Guide.
The following changes:
Applies to all 2005-2007 vehicles, unless 2005 was the last year of production for that particular
model. May apply to 2004 and prior models years if the vehicle was produced after 2005 - e.g.
TrailBlazer, Envoy, etc.
Where the new labor operations for refinishing rotors or drums do not apply, the existing labor
operations will still contain time for refinishing.
Always refer to the Labor Time Guide for the appropriate labor operations and time for the vehicle
being repaired.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Technical Service Bulletins > Brakes- Disc Brake Warranty Service And Procedures > Page 11375
The list shown is of labor operations for brake service.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Technical Service Bulletins > Page 11376
Brake Rotor/Disc: Specifications
Front Brakes
Brake Rotor Diameter ..........................................................................................................................
.......................................... 296.00 mm 11.654 in Brake Rotor Discard Thickness*
..........................................................................................................................................................
27.4 mm 1.079 in Maximum Allowable Lateral Runout
................................................................................................................................................... 0.06
mm 0.002 in Maximum Allowable Scoring
..............................................................................................................................................................
1.50 mm 0.059 in Maximum Allowable Thickness Variation
......................................................................................................................................... 0.025 mm
0.001 in
Rear Brakes
Brake Rotor Diameter ..........................................................................................................................
................................................. 191 mm 7.520 in Rotor Discard Thickness * .....................................
.............................................................................................................................. 18.4 mm 0.724 in
Maximum Allowable Lateral Runout
................................................................................................................................................... 0.06
mm 0.002 in Maximum Allowable Scoring
..............................................................................................................................................................
1.50 mm 0.059 in Maximum Allowable Thickness Variation
......................................................................................................................................... 0.025 mm
0.001 in
* All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet
this specification. After refinishing the rotor, replace any rotor that does not meet the minimum
thickness specifications.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction
Brake Rotor/Disc: Testing and Inspection Brake Rotor Assembled Lateral Runout Correction
Brake Rotor Assembled Lateral Runout Correction
Important:
* Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateral runout
(LRO). Thickness variation exceeding the maximum acceptable level can cause brake pulsation.
* Brake rotor assembled lateral runout (LRO) exceeding the maximum allowable specification can
cause thickness variation to develop in the brake rotor over time, usually between 4 800-11 300 km
(3,000-7,000 mi).
Review the following acceptable methods for bringing the brake rotor assembled LRO to within
specifications. Determine which method to use for the specific vehicle being repaired.
* The indexing method of correcting assembled LRO is most effective when the LRO specification
is only exceeded by a relatively small amount: 0.025-0.127 mm (0.001-0.005 in). Indexing is used
to achieve the best possible match of high spots to low spots between related components. Refer
to Brake Rotor Assembled Lateral Runout Correction - Indexing . See: Brake Rotor Assembled
Lateral Runout Correction - Indexing
* The correction plate method of correcting assembled LRO involves the addition of a tapered plate
between the brake rotor and the hub/axle flange. The correction plate method can be used to
correct LRO that exceeds the specification by up to 0.23 mm (0.009 in). Refer to Brake Rotor
Assembled Lateral Runout Correction - Correction Plates . See: Brake Rotor Assembled Lateral
Runout Correction - Correction Plates
* The on-vehicle brake lathe method is used to bring the LRO to within specifications through
compensating for LRO while refinishing the brake rotor. Refer to Brake Rotor Assembled Lateral
Runout Correction - On Vehicle Lathe . See: Brake Rotor Assembled Lateral Runout Correction On Vehicle Lathe
If the assembled LRO cannot be corrected using these methods, then other components must be
suspected as causing and/or contributing to the LRO concern.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11379
Brake Rotor/Disc: Testing and Inspection Brake Rotor Assembled Lateral Runout Correction Correction Plates
Brake Rotor Assembled Lateral Runout Correction - Correction Plates
Tools Required
* J 39544-KIT Complete Torque Socket Set-10 Pieces, or equivalent
* J 45101-100 Conical Brake Rotor Washers
Caution: Refer to Brake Dust Caution .
Important:
* Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateral runout
(LRO). Thickness variation exceeding the maximum acceptable level can cause brake pulsation.
* Brake rotor assembled LRO exceeding the maximum allowable specification can cause thickness
variation to develop in the brake rotor over time, usually between 4 800-11 300 km (3,000-7,000
mi).
1. Rotate the brake rotor to position the high spot, identified and marked during the brake rotor
assembled LRO measurement procedure, to face
upward.
2. Remove the J 45101-100 and the lug nuts that were installed during the assembled LRO
measurement procedure and/or the indexing correction
procedure.
3. Inspect the mounting surface of the hub/axle flange and the brake rotor to ensure that there are
no foreign particles or debris remaining. 4. Select the correction plate, following the manufacturer's
instructions, which has a specification closest to the assembled LRO measurement.
For example: If the assembled LRO measurement was 0.076 mm (0.003 in), the 0.076 mm (0.003
in) correction plate would be used. If the measurement was 0.127 mm (0.005 in), the 0.152 mm
(0.006 in) correction plate would be used.
5. Determine the positioning for the correction plate (1) using the high spot mark (3) made during
the brake rotor assembled LRO measurement
procedure.
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Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11380
Important: *
Do NOT install used correction plates in an attempt to correct brake rotor assembled LRO.
* Do NOT stack up, or install more than one correction plate onto one hub/axle flange location, in
an attempt to correct brake rotor assembled LRO.
Install the correction plate (1) onto the hub/axle flange, with the V-shaped notch (2) orientated to
align with the high spot mark (3), that was positioned to face upward.
6. Install the brake rotor to the hub/axle flange. Use the matchmarks made prior to removal for
proper orientation to the flange. 7. Hold the rotor firmly in place against the hub/axle flange and
install one of the J 45101-100 (1) and one lug nut (2) onto the upper-most wheel
stud.
8. Continue to hold the rotor secure and tighten the lug nut firmly by hand.
9. Install the remaining J 45101-100 and lug nuts onto the wheel studs and tighten the nuts firmly
by hand in a star-pattern.
10. Using the J 39544-KIT , or equivalent, tighten the lug nuts in a star-pattern to specification, in
order to properly secure the rotor. 11. Measure the assembled LRO of the brake rotor. 12. If the
brake rotor assembled LRO measurement still exceeds the maximum allowable specification, refer
to Brake Rotor Assembled Lateral
Runout Correction . See: Brake Rotor Assembled Lateral Runout Correction
13. If the brake rotor assembled LRO measurement is within specification, install the brake caliper
and depress the brake pedal several times to secure
the rotor in place before removing the J 45101-100 and the lug nuts.
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Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11381
Brake Rotor/Disc: Testing and Inspection Brake Rotor Assembled Lateral Runout Correction Indexing
Brake Rotor Assembled Lateral Runout Correction - Indexing
Tools Required
* J 39544-KIT Torque-Limiting Socket Set, or equivalent
* J 45101-100 Conical Brake Rotor Washers
Caution: Refer to Brake Dust Caution .
Important:
* Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateral runout
(LRO). Thickness variation exceeding the maximum acceptable level can cause brake pulsation.
* Brake rotor assembled LRO exceeding the maximum allowable specification can cause thickness
variation to develop in the brake rotor over time, usually between 4 800-11 300 km (3,000-7,000
mi).
1. Remove the J 45101-100 and the lug nuts that were installed during the assembled LRO
measurement procedure. 2. Inspect the mating surface of the hub/axle flange and the brake rotor
to ensure that there are no foreign particles or debris remaining. 3. Index the brake rotor in a
different orientation to the hub/axle flange. 4. Hold the rotor firmly in place against the hub/axle
flange and install one of the J 45101-100 (1) and one lug nut (2) onto the upper-most wheel
stud.
5. Continue to hold the rotor secure and tighten the lug nut firmly by hand.
6. Install the remaining J 45101-100 and lug nuts onto the wheel studs and tighten the nuts firmly
by hand in a star-pattern. 7. Using the J 39544-KIT , or equivalent, tighten the lug nuts in a
star-pattern to specification, in order to properly secure the rotor. 8. Measure the assembled LRO
of the brake rotor.
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Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11382
9. Compare the amount of change between this measurement and the original measurement.
10. If this measurement is within specifications, proceed to step 14. 11. If this measurement still
exceeds specifications, repeat steps 1-9 until the best assembled LRO measurement is obtained.
12. Matchmark the final location of the rotor to the wheel studs if the orientation is different than it
was originally. 13. If the brake rotor assembled LRO measurement still exceeds the maximum
allowable specification, refer to Brake Rotor Assembled Lateral
Runout Correction . See: Brake Rotor Assembled Lateral Runout Correction
14. If the brake rotor assembled LRO is within specification, install the brake caliper and depress
the brake pedal several times to secure the rotor in
place before removing the J 45101-100 and the lug nuts.
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Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11383
Brake Rotor/Disc: Testing and Inspection Brake Rotor Assembled Lateral Runout Correction - On
Vehicle Lathe
Brake Rotor Assembled Lateral Runout Correction - On Vehicle Lathe
Tools Required
J 45101-100 Conical Brake Rotor Washers Caution: Refer to Brake Dust Caution .
Important:
* Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateral runout
(LRO). Thickness variation exceeding the maximum acceptable level can cause brake pulsation.
* Brake rotor assembled LRO exceeding the maximum allowable specification can cause thickness
variation to develop in the brake rotor over time, usually between 4 800-11 300 km (3,000-7,000
mi).
1. Ensure that the caliper and caliper bracket that are already being supported, are clear from
contacting any rotating components, such as the brake
rotor.
2. Remove the J 45101-100 and the lug nuts that were installed during the assembled LRO
measurement procedure and/or the indexing correction
procedure.
3. Inspect the mounting surface of the hub/axle flange and the brake rotor to ensure that there are
no foreign particles or debris remaining. 4. Set up the lathe, following the manufacturer's
instructions. 5. Refinish the brake rotor, following the brake lathe manufacturer's instructions. 6.
After each successive cut, inspect the brake rotor thickness. 7. If at any time the brake rotor
exceeds the minimum allowable thickness after refinish specification, the brake rotor must be
replaced. After
replacing the rotor, proceed to step 10.
8. After refinishing the brake rotor, use the following procedure in order to obtain the desired
non-directional finish:
1. Follow the brake lathe manufacturer's recommended speed setting for applying a non-directional
finish. 2. Using moderate pressure, apply the non-directional finish:
* If the lathe is equipped with a non-directional finishing tool, apply the finish with 120-grit aluminum
oxide sandpaper.
* If the lathe is not equipped with a non-directional finishing tool, apply the finish with a sanding
block and 150-grit aluminum oxide sandpaper.
3. After applying a non-directional finish, clean each friction surface of the brake rotor with
denatured alcohol, or an equivalent approved brake
cleaner.
9. Remove the lathe from the vehicle.
10. Measure the assembled LRO of the brake rotor. 11. If the brake rotor assembled LRO
measurement still exceeds the maximum allowable specification, refer to Brake Rotor Assembled
Lateral
Runout Correction See: Brake Rotor Assembled Lateral Runout Correction .
12. If the brake rotor assembled LRO is within specification, install the brake caliper and depress
the brake pedal several times to secure the rotor in
place before removing the J 45101-100 and the lug nuts.
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Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11384
Brake Rotor/Disc: Testing and Inspection
Brake Rotor Assembled Lateral Runout Correction
Brake Rotor Assembled Lateral Runout Correction
Important:
* Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateral runout
(LRO). Thickness variation exceeding the maximum acceptable level can cause brake pulsation.
* Brake rotor assembled lateral runout (LRO) exceeding the maximum allowable specification can
cause thickness variation to develop in the brake rotor over time, usually between 4 800-11 300 km
(3,000-7,000 mi).
Review the following acceptable methods for bringing the brake rotor assembled LRO to within
specifications. Determine which method to use for the specific vehicle being repaired.
* The indexing method of correcting assembled LRO is most effective when the LRO specification
is only exceeded by a relatively small amount: 0.025-0.127 mm (0.001-0.005 in). Indexing is used
to achieve the best possible match of high spots to low spots between related components. Refer
to Brake Rotor Assembled Lateral Runout Correction - Indexing . See: Brake Rotor Assembled
Lateral Runout Correction - Indexing
* The correction plate method of correcting assembled LRO involves the addition of a tapered plate
between the brake rotor and the hub/axle flange. The correction plate method can be used to
correct LRO that exceeds the specification by up to 0.23 mm (0.009 in). Refer to Brake Rotor
Assembled Lateral Runout Correction - Correction Plates . See: Brake Rotor Assembled Lateral
Runout Correction - Correction Plates
* The on-vehicle brake lathe method is used to bring the LRO to within specifications through
compensating for LRO while refinishing the brake rotor. Refer to Brake Rotor Assembled Lateral
Runout Correction - On Vehicle Lathe . See: Brake Rotor Assembled Lateral Runout Correction On Vehicle Lathe
If the assembled LRO cannot be corrected using these methods, then other components must be
suspected as causing and/or contributing to the LRO concern.
Brake Rotor Assembled Lateral Runout Correction - Correction Plates
Brake Rotor Assembled Lateral Runout Correction - Correction Plates
Tools Required
* J 39544-KIT Complete Torque Socket Set-10 Pieces, or equivalent
* J 45101-100 Conical Brake Rotor Washers
Caution: Refer to Brake Dust Caution .
Important:
* Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateral runout
(LRO). Thickness variation exceeding the maximum acceptable level can cause brake pulsation.
* Brake rotor assembled LRO exceeding the maximum allowable specification can cause thickness
variation to develop in the brake rotor over time, usually between 4 800-11 300 km (3,000-7,000
mi).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11385
1. Rotate the brake rotor to position the high spot, identified and marked during the brake rotor
assembled LRO measurement procedure, to face
upward.
2. Remove the J 45101-100 and the lug nuts that were installed during the assembled LRO
measurement procedure and/or the indexing correction
procedure.
3. Inspect the mounting surface of the hub/axle flange and the brake rotor to ensure that there are
no foreign particles or debris remaining. 4. Select the correction plate, following the manufacturer's
instructions, which has a specification closest to the assembled LRO measurement.
For example: If the assembled LRO measurement was 0.076 mm (0.003 in), the 0.076 mm (0.003
in) correction plate would be used. If the measurement was 0.127 mm (0.005 in), the 0.152 mm
(0.006 in) correction plate would be used.
5. Determine the positioning for the correction plate (1) using the high spot mark (3) made during
the brake rotor assembled LRO measurement
procedure.
Important: *
Do NOT install used correction plates in an attempt to correct brake rotor assembled LRO.
* Do NOT stack up, or install more than one correction plate onto one hub/axle flange location, in
an attempt to correct brake rotor assembled LRO.
Install the correction plate (1) onto the hub/axle flange, with the V-shaped notch (2) orientated to
align with the high spot mark (3), that was positioned to face upward.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11386
6. Install the brake rotor to the hub/axle flange. Use the matchmarks made prior to removal for
proper orientation to the flange. 7. Hold the rotor firmly in place against the hub/axle flange and
install one of the J 45101-100 (1) and one lug nut (2) onto the upper-most wheel
stud.
8. Continue to hold the rotor secure and tighten the lug nut firmly by hand.
9. Install the remaining J 45101-100 and lug nuts onto the wheel studs and tighten the nuts firmly
by hand in a star-pattern.
10. Using the J 39544-KIT , or equivalent, tighten the lug nuts in a star-pattern to specification, in
order to properly secure the rotor. 11. Measure the assembled LRO of the brake rotor. 12. If the
brake rotor assembled LRO measurement still exceeds the maximum allowable specification, refer
to Brake Rotor Assembled Lateral
Runout Correction . See: Brake Rotor Assembled Lateral Runout Correction
13. If the brake rotor assembled LRO measurement is within specification, install the brake caliper
and depress the brake pedal several times to secure
the rotor in place before removing the J 45101-100 and the lug nuts.
Brake Rotor Assembled Lateral Runout Correction - Indexing
Brake Rotor Assembled Lateral Runout Correction - Indexing
Tools Required
* J 39544-KIT Torque-Limiting Socket Set, or equivalent
* J 45101-100 Conical Brake Rotor Washers
Caution: Refer to Brake Dust Caution .
Important:
* Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateral runout
(LRO). Thickness variation exceeding the maximum acceptable level can cause brake pulsation.
* Brake rotor assembled LRO exceeding the maximum allowable specification can cause thickness
variation to develop in the brake rotor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11387
over time, usually between 4 800-11 300 km (3,000-7,000 mi).
1. Remove the J 45101-100 and the lug nuts that were installed during the assembled LRO
measurement procedure. 2. Inspect the mating surface of the hub/axle flange and the brake rotor
to ensure that there are no foreign particles or debris remaining. 3. Index the brake rotor in a
different orientation to the hub/axle flange. 4. Hold the rotor firmly in place against the hub/axle
flange and install one of the J 45101-100 (1) and one lug nut (2) onto the upper-most wheel
stud.
5. Continue to hold the rotor secure and tighten the lug nut firmly by hand.
6. Install the remaining J 45101-100 and lug nuts onto the wheel studs and tighten the nuts firmly
by hand in a star-pattern. 7. Using the J 39544-KIT , or equivalent, tighten the lug nuts in a
star-pattern to specification, in order to properly secure the rotor. 8. Measure the assembled LRO
of the brake rotor. 9. Compare the amount of change between this measurement and the original
measurement.
10. If this measurement is within specifications, proceed to step 14. 11. If this measurement still
exceeds specifications, repeat steps 1-9 until the best assembled LRO measurement is obtained.
12. Matchmark the final location of the rotor to the wheel studs if the orientation is different than it
was originally. 13. If the brake rotor assembled LRO measurement still exceeds the maximum
allowable specification, refer to Brake Rotor Assembled Lateral
Runout Correction . See: Brake Rotor Assembled Lateral Runout Correction
14. If the brake rotor assembled LRO is within specification, install the brake caliper and depress
the brake pedal several times to secure the rotor in
place before removing the J 45101-100 and the lug nuts.
Brake Rotor Assembled Lateral Runout Correction - On Vehicle Lathe
Brake Rotor Assembled Lateral Runout Correction - On Vehicle Lathe
Tools Required
J 45101-100 Conical Brake Rotor Washers
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11388
Caution: Refer to Brake Dust Caution .
Important:
* Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateral runout
(LRO). Thickness variation exceeding the maximum acceptable level can cause brake pulsation.
* Brake rotor assembled LRO exceeding the maximum allowable specification can cause thickness
variation to develop in the brake rotor over time, usually between 4 800-11 300 km (3,000-7,000
mi).
1. Ensure that the caliper and caliper bracket that are already being supported, are clear from
contacting any rotating components, such as the brake
rotor.
2. Remove the J 45101-100 and the lug nuts that were installed during the assembled LRO
measurement procedure and/or the indexing correction
procedure.
3. Inspect the mounting surface of the hub/axle flange and the brake rotor to ensure that there are
no foreign particles or debris remaining. 4. Set up the lathe, following the manufacturer's
instructions. 5. Refinish the brake rotor, following the brake lathe manufacturer's instructions. 6.
After each successive cut, inspect the brake rotor thickness. 7. If at any time the brake rotor
exceeds the minimum allowable thickness after refinish specification, the brake rotor must be
replaced. After
replacing the rotor, proceed to step 10.
8. After refinishing the brake rotor, use the following procedure in order to obtain the desired
non-directional finish:
1. Follow the brake lathe manufacturer's recommended speed setting for applying a non-directional
finish. 2. Using moderate pressure, apply the non-directional finish:
* If the lathe is equipped with a non-directional finishing tool, apply the finish with 120-grit aluminum
oxide sandpaper.
* If the lathe is not equipped with a non-directional finishing tool, apply the finish with a sanding
block and 150-grit aluminum oxide sandpaper.
3. After applying a non-directional finish, clean each friction surface of the brake rotor with
denatured alcohol, or an equivalent approved brake
cleaner.
9. Remove the lathe from the vehicle.
10. Measure the assembled LRO of the brake rotor. 11. If the brake rotor assembled LRO
measurement still exceeds the maximum allowable specification, refer to Brake Rotor Assembled
Lateral
Runout Correction See: Brake Rotor Assembled Lateral Runout Correction .
12. If the brake rotor assembled LRO is within specification, install the brake caliper and depress
the brake pedal several times to secure the rotor in
place before removing the J 45101-100 and the lug nuts.
Brake Rotor Assembled Lateral Runout Measurement
Brake Rotor Assembled Lateral Runout Measurement
Tools Required
* J 39544-KIT Torque-Limiting Socket Set, or equivalent
* J 41013 Rotor Resurfacing Kit
* J 42450-A Wheel Hub Resurfacing Kit
* J 45101 Hub and Wheel Runout Gage
* J 45101-100 Conical Brake Rotor Washers
Caution: Refer to Brake Dust Caution.
Important:
* Brake rotor assembled lateral runout (LRO) exceeding the maximum allowable specification can
cause thickness variation to develop in the brake rotor over time, usually between 4 800-11 300 km
(3,000-7,000 mi).
* Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateral runout
(LRO). Thickness variation exceeding the maximum acceptable level can cause brake pulsation.
1. Matchmark the position of the brake rotor to the wheel studs if this has not been done already.
Important: Whenever the brake rotor has been separated from the hub/axle flange, any rust or
contaminants should be cleaned from the hub/axle flange and the brake rotor mating surfaces.
Failure to do this may result in excessive assembled lateral runout (LRO) of the brake rotor, which
could lead to brake pulsation.
2. Inspect the mating surface of the hub/axle flange and the brake rotor to ensure that there are no
foreign particles, corrosion, rust, or debris
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11389
remaining. If the wheel hub/axle flange and/or if the brake rotor mating surfaces exhibit these
conditions, perform the following steps:
1. Remove the brake rotor from the vehicle. 2. Using the J 42450-A , thoroughly clean any rust or
corrosion from the mating surface of the hub/axle flange. 3. Using the J 41013 , thoroughly clean
any rust or corrosion from the mating surface of the brake rotor. 4. Clean the friction surfaces of the
brake rotor with denatured alcohol, or an equivalent approved brake cleaner.
3. Install the rotor to the hub/axle flange using the matchmarks made prior to removal.
4. Hold the rotor firmly in place against the hub/axle flange and install one of the J 45101-100 (1),
and one lug nut (2) onto the upper-most wheel
stud.
5. Continue to hold the rotor secure and tighten the lug nut firmly by hand.
6. Install the remaining J 45101-100 and lug nuts onto the wheel studs and tighten the nuts firmly
by hand in a star-pattern. 7. Using the J 39544-KIT , or equivalent, tighten the lug nuts in a
star-pattern to specification, in order to properly secure the rotor. 8. If the brake rotor has been
REFINISHED or REPLACED with a new rotor, proceed to step 14. 9. If the brake rotor meets the
following criteria, proceed to step 10.
* The rotor is within specifications and is being REUSED
* The rotor has NOT been refinished
* The rotor does NOT exhibit thickness variation exceeding the maximum allowable level
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11390
10. Mount a dial indicator, J 45101 , or equivalent, to the steering knuckle and position the indicator
button so it contacts the brake rotor friction
surface at a 90 degree angle, approximately 13 mm (0.5 in) from the outer edge of the rotor.
11. Measure and record the assembled LRO of the brake rotor.
1. Rotate the rotor until the lowest reading is displayed on the indicator dial, then set the dial to
zero. 2. Rotate the rotor until the highest reading is displayed on the dial. 3. Mark the location of the
high spot relative to the nearest wheel stud, or studs. 4. Measure and record the amount of LRO.
12. Compare the brake rotor assembled LRO to the following specification:
* Front brake rotor maximum allowable assembled lateral runout: 0.05 mm (0.002 in)
* Rear brake rotor maximum allowable assembled lateral runout: 0.05 mm (0.002 in)
13. If the brake rotor assembled LRO is within specifications, proceed to step 18.
If the brake rotor assembled LRO exceeds the specification, refinish the rotor to ensure true
parallelism, refer to Brake Rotor Refinishing . After refinishing the rotor, proceed to step 14.
14. Mount a dial indicator, J 45101 , or equivalent, to the steering knuckle and position the indicator
button so it contacts the brake rotor friction
surface at a 90 degree angle, approximately 13 mm (0.5 in) from the outer edge of the rotor.
15. Measure and record the assembled LRO of the brake rotor.
1. Rotate the rotor until the lowest reading is displayed on the indicator dial, then set the dial to
zero. 2. Rotate the rotor until the highest reading is displayed on the dial. 3. Mark the location of the
high spot relative to the nearest wheel stud, or studs. 4. Measure and record the amount of LRO.
16. Compare the brake rotor assembled LRO to the following specification:
* Front brake rotor maximum allowable assembled lateral runout: 0.05 mm (0.002 in)
* Rear brake rotor maximum allowable assembled lateral runout: 0.05 mm (0.002 in)
17. If the brake rotor assembled LRO measurement exceeds the specification, bring the LRO to
within specifications. 18. If the brake rotor assembled LRO measurement is within specification,
install the brake caliper and depress the brake pedal several times to secure
the rotor in place before removing the J 45101-100 and the lug nuts.
Brake Rotor Surface and Wear Inspection
Brake Rotor Surface and Wear Inspection
Caution: Refer to Brake Dust Caution .
1. If the inboard friction surface of the brake rotor is not accessible, reposition and support the
caliper with the brake pads. 2. Clean the friction surfaces of the brake rotor with denatured alcohol,
or an equivalent approved brake cleaner. 3. Inspect the friction surfaces of the brake rotor for the
following Braking Surface Conditions:
* Heavy rust and/or pitting Light surface rust can be removed with an abrasive disc. Heavy surface
rust and/or pitting must be removed by refinishing the rotor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11391
* Cracks and/or heat spots
* Excessive blueing discoloration
4. If the friction surfaces of the brake rotor exhibit one or more of the Braking Surface Conditions,
the rotor requires refinishing or replacement.
5. Using a micrometer calibrated in thousandths-of-a-millimeter, or ten-thousandths-of-an-inch,
measure and record the scoring depth of any grooves
present on the rotor friction surfaces.
6. Compare the groove scoring depth recorded to the following specification:
Brake rotor maximum allowable scoring: 1.50 mm (0.059 in)
7. If the brake rotor scoring depth exceeds the specification, or if an excessive amount of scoring is
present, the rotor requires refinishing or
replacement.
Brake Rotor Thickness Measurement
Brake Rotor Thickness Measurement
Caution: Refer to Brake Dust Caution .
1. If the inboard friction surface of the brake rotor is not accessible, reposition and support the
caliper with the brake pads 2. Clean the friction surfaces of the brake rotor with denatured alcohol,
or an equivalent approved brake cleaner. 3. Using a micrometer calibrated in
thousandths-of-a-millimeter, or ten-thousandths-of-an-inch, measure and record the lowest
thickness of the brake
rotor at 4 or more points, equally spaced around the rotor. Ensure that the measurements are only
taken within the friction surfaces and that the micrometer is positioned the same distance from the
outside edge of the rotor, about 13 mm (1/2 in), for each measurement.
4. Compare the lowest thickness measurement recorded to the following specifications:
Brake rotor discard thickness: 27.4 mm (1.079 in)
Brake rotor discard thickness: 18.4 mm (0.724 in)
5. If the lowest thickness measurement of the brake rotor is above the minimum allowable
thickness after refinishing specification, the rotor may be
able to be refinished, depending upon surface and wear conditions which may be present.
6. If the lowest thickness measurement of the brake rotor is at or below the minimum allowable
thickness after refinishing specification, the rotor may
not be refinished.
7. If the lowest thickness measurement of the brake rotor is at or below the discard thickness
specification, the rotor requires replacement.
Brake Rotor Thickness Variation Measurement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Testing and Inspection > Brake Rotor Assembled Lateral Runout Correction > Page 11392
Brake Rotor Thickness Variation Measurement
Caution: Refer to Brake Dust Caution .
Important: Any disc brake rotor that exhibits thickness variation exceeding the maximum
acceptable level must be refinished or replaced. Thickness variation exceeding the maximum
acceptable level can cause brake pulsation.
1. If the inboard friction surface of the brake rotor is not accessible, reposition and support the
caliper with the brake pads. 2. Clean the friction surfaces of the brake rotor with denatured alcohol,
or an equivalent approved brake cleaner.
3. Using a micrometer calibrated in thousandths-of-a-millimeter, or ten-thousandths-of-an-inch,
measure and record the thickness of the brake rotor at
four or more points, evenly spaced around the rotor. Ensure that the measurements are only taken
within the friction surfaces and that the micrometer is positioned the same distance from the outer
edge of the rotor, about 13 mm (0.5 in), for each measurement.
4. Calculate the difference between the highest and lowest thickness measurements recorded to
obtain the amount of thickness variation. 5. Compare the thickness variation measurement to the
following specification:
Brake rotor maximum allowable thickness variation: 0.025 mm (0.001 in)
Important: Whenever a brake rotor is refinished or replaced, the assembled lateral runout (LRO) of
the rotor must be measured to ensure optimum performance of the disc brakes.
6. If the brake rotor thickness variation measurement exceeds the specification, the rotor requires
refinishing or replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Service and Repair > Procedures
Brake Rotor/Disc: Procedures
Brake Rotor Refinishing
Tools Required
* J 41013 Rotor Resurfacing Kit
* J 42450-A Wheel Hub Resurfacing Kit
Caution: Refer to Brake Dust Caution .
Important:
* The disc brake rotors do not require refinishing as part of routine brake system service. New disc
brake rotors do not require refinishing.
Do not refinish disc brake rotors in an attempt to correct the following conditions:
- Brake system noise - squeal, growl, groan
- Uneven and/or premature disc brake pad wear
- Superficial or cosmetic corrosion/rust of the disc brake rotor friction surface
- Scoring of the disc brake rotor friction surface less than the maximum allowable specification
* Before refinishing a brake rotor, the rotor MUST first be checked for adequate thickness to allow
the rotor to be refinished and remain above the minimum allowable thickness after refinish
specification.
Disc brake rotors should only be refinished if they have adequate thickness to be refinished and if
one or more of the following conditions exist:
- Thickness variation in excess of the maximum allowable specification
- Excessive corrosion/rust and/or pitting
- Cracks and/or heat spots
- Excessive blueing discoloration
- Scoring of the disc brake rotor surface in excess of the maximum allowable specification
*
Disc brake rotors may need to be refinished as part of the process for correcting brake rotor
assembled lateral runout (LRO) that exceeds the maximum allowable specification.
Important: If the vehicle is equipped with cross-drilled rotors, use a lathe with positive rake tooling.
This setup requires less cutting pressure, which will result in less vibration, and a better surface
finish. Also, use a vibration dampener when cutting. Otherwise, refinish according to the following
instructions.
Important: Whenever the brake rotor has been separated from the hub/axle flange, clean any rust
or contaminants from the hub/axle flange and the brake rotor mating surfaces. Failure to do this
may result in increased assembled lateral runout (LRO) of the brake rotor, which could lead to
brake pulsation.
1. Using the J 42450-A , thoroughly clean any rust or corrosion from the mating surface of the
hub/axle flange. 2. Using the J 41013 , thoroughly clean any rust or corrosion from the mating
surface and mounting surface of the brake rotor. 3. Inspect the mating surfaces of the hub/axle
flange and the rotor to ensure that there are no foreign particles or debris remaining. 4. Mount the
brake rotor to the brake lathe according to the lathe manufacturer's instructions, ensuring that all
mounting attachments and adapters are
clean and free of debris.
5. Ensure that any vibration dampening attachments are securely in place. 6. With the brake lathe
running, slowly bring in the cutting tools until they just contact the brake rotor friction surfaces. 7.
Observe the witness mark on the brake rotor. If the witness mark extends approximately
three-quarters or more of the way around the brake rotor
friction surface on each side, the brake rotor is properly mounted to the lathe.
8. If the witness mark does not extend three-quarters or more of the way around the brake rotor,
re-mount the rotor to the lathe. 9. Following the brake lathe manufacturer's instructions, refinish the
brake rotor.
10. After each successive cut, inspect the brake rotor thickness. 11. If at any time the brake rotor
exceeds the minimum allowable thickness after refinish specification, the brake rotor must be
replaced. 12. After refinishing the brake rotor, use the following procedure in order to obtain the
desired non-directional finish:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Service and Repair > Procedures > Page 11395
1. Follow the brake lathe manufacturer's recommended speed setting for applying a non-directional
finish. 2. Using moderate pressure, apply the non-directional finish:
* If the lathe is equipped with a non-directional finishing tool, apply the finish with 120-grit aluminum
oxide sandpaper.
* If the lathe is not equipped with a non-directional finishing tool, apply the finish with a sanding
block and 150-grit aluminum oxide sandpaper.
3. After applying a non-directional finish, clean each friction surface of the brake rotor with
denatured alcohol, or an equivalent approved brake
cleaner.
13. Remove the brake rotor from the brake lathe. 14. Measure the assembled LRO of the brake
rotor to ensure optimum performance of the disc brakes. 15. If the brake rotor assembled LRO
measurement exceeds the specification, bring the LRO to within specifications.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Service and Repair > Procedures > Page 11396
Brake Rotor/Disc: Removal and Replacement
Brake Pad and Rotor Burnishing
Brake Pad and Rotor Burnishing
Caution: Road test a vehicle under safe conditions and while obeying all traffic laws. Do not
attempt any maneuvers that could jeopardize vehicle control. Failure to adhere to these
precautions could lead to serious personal injury and vehicle damage.
Caution: Refer to Brake Dust Caution .
Burnishing the brake pads and brake rotors is necessary in order to ensure that the braking
surfaces are properly prepared after service has been performed on the disc brake system.
This procedure should be performed whenever the disc brake rotors have been refinished or
replaced, and/or whenever the disc brake pads have been replaced.
1. Select a smooth road with little or no traffic. 2. Accelerate the vehicle to 48 km/h (30 mph).
Important: Use care to avoid overheating the brakes while performing this step.
3. Using moderate to firm pressure, apply the brakes to bring the vehicle to a stop. Do not allow the
brakes to lock. 4. Repeat steps 2 and 3 until approximately 20 stops have been completed. Allow
sufficient cooling periods between stops in order to properly
burnish the brake pads and rotors.
Front Brake Rotor Replacement
Front Brake Rotor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Service and Repair > Procedures > Page 11397
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Service and Repair > Procedures > Page 11398
Rear Brake Rotor Replacement
Rear Brake Rotor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Disc Brake System > Brake Rotor/Disc > Component
Information > Service and Repair > Procedures > Page 11399
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Drum Brake System > Brake Drum > Component Information
> Technical Service Bulletins > Brakes - Rotor/Drum Refinishing Labor Operations
Brake Drum: Technical Service Bulletins Brakes - Rotor/Drum Refinishing Labor Operations
Bulletin No.: 06-05-22-007
Date: November 30, 2006
WARRANTY ADMINISTRATION
Subject: Brake Rotor/Drum Refinishing Labor Operations
Models: 2005-2007 GM Passenger Cars and Light Duty Trucks (including Saturn) 2005-2007
HUMMER H2 2006-2007 HUMMER H3 2005-2007 Saab 9-7X (Canada Only)
The purpose of this bulletin is to advise dealership personnel of labor operation changes relating to
brake repairs. Existing brake rotor and drum labor operations have been revised to remove the
refinishing times and new labor operations have been established for refinishing brake rotors or
drums. The changes will become effective with the release of the December 2006 Labor Time
Guide.
The following changes:
Applies to all 2005-2007 vehicles, unless 2005 was the last year of production for that particular
model. May apply to 2004 and prior models years if the vehicle was produced after 2005 - e.g.
TrailBlazer, Envoy, etc.
Where the new labor operations for refinishing rotors or drums do not apply, the existing labor
operations will still contain time for refinishing.
Always refer to the Labor Time Guide for the appropriate labor operations and time for the vehicle
being repaired.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Drum Brake System > Brake Drum > Component Information
> Technical Service Bulletins > Brakes - Rotor/Drum Refinishing Labor Operations > Page 11405
The list shown is of labor operations for brake service.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Bleeding > System
Information > Service and Repair > Antilock Brake System Automated Bleed Procedure
Brake Bleeding: Service and Repair Antilock Brake System Automated Bleed Procedure
Antilock Brake System Automated Bleed Procedure Caution: Refer to Brake Fluid Irritant Caution .
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
Important: Before performing the antilock brake system (ABS) Automated Bleed Procedure, first
perform a manual or pressure bleed of the base brake system. The automated bleed procedure is
recommended when one of the following conditions exist:
* Base brake system bleeding does not achieve the desired pedal height or feel
* Extreme loss of brake fluid has occurred
* Air ingestion is suspected in the secondary circuits of the brake modulator assembly
The ABS Automated Bleed Procedure uses a scan tool to cycle the system solenoid valves and run
the pump in order to purge any air from the secondary circuits. These circuits are normally closed
off, and are only opened during system initialization at vehicle start up and during ABS operation.
The automated bleed procedure opens these secondary circuits and allows any air trapped in
these circuits to flow out toward the brake corners.
Automated Bleed Procedure
Notice: The Auto Bleed Procedure may be terminated at any time during the process by pressing
the EXIT button. No further Scan Tool prompts pertaining to the Auto Bleed procedure will be
given. After exiting the bleed procedure, relieve bleed pressure and disconnect bleed equipment
per manufacturers instructions. Failure to properly relieve pressure may result in spilled brake fluid
causing damage to components and painted surfaces.
1. Raise and support the vehicle. 2. Remove all 4 tire and wheel assemblies. 3. Inspect the brake
system for leaks and visual damage. Repair or replace components as needed. 4. Lower the
vehicle. 5. Inspect the battery state of charge. 6. Install a scan tool. 7. Turn the ignition ON, with the
engine OFF. 8. With the scan tool, establish communications with the ABS system. Select Special
Functions. Select Automated Bleed from the Special Functions
menu.
9. Raise and support the vehicle.
10. Following the directions given on the scan tool, pressure bleed the base brake system. 11.
Follow the scan tool directions until the desired brake pedal height is achieved. 12. If the bleed
procedure is aborted, a malfunction exists. Perform the following steps before resuming the bleed
procedure:
* If a DTC is detected, refer to Diagnostic Trouble Code (DTC) List - Vehicle , and diagnose the
appropriate DTC.
* If the brake pedal feels spongy, perform the conventional brake bleed procedure again.
13. When the desired pedal height is achieved, press the brake pedal to inspect for firmness. 14.
Lower the vehicle. 15. Remove the scan tool. 16. Install the tire and wheel assemblies. 17. Inspect
the brake fluid level. 18. Road test the vehicle while inspecting that the pedal remains high and
firm.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Bleeding > System
Information > Service and Repair > Antilock Brake System Automated Bleed Procedure > Page 11411
Brake Bleeding: Service and Repair Hydraulic Brake System Bleeding
Manual
Hydraulic Brake System Bleeding (Manual)
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Place a clean shop cloth beneath the brake master cylinder to catch brake fluid spills. 2. With the
ignition OFF and the brakes cool, apply the brakes 3-5 times, or until the brake pedal effort
increases significantly, in order to deplete the
brake booster power reserve.
3. If you have performed a brake master cylinder bench bleeding on this vehicle, or if you
disconnected the brake pipes from the master cylinder, or
if you have disconnected the brake pipes from the proportioning valve assembly or the brake
modulator assembly, you must perform the following steps to bleed air at the ports of the hydraulic
component:
1. If removal of the reservoir cap and diaphragm is necessary, clean the outside of the reservoir on
and around the cap prior to removal. 2. With the brake pipes installed securely to the master
cylinder, proportioning valve assembly, or brake modulator assembly, loosen and separate
one of the brake pipes from the port of the component. For the proportioning valve assembly or the
brake modulator assembly, perform these steps in the sequence of system flow; begin with the fluid
feed pipes from the master cylinder.
3. Allow a small amount of brake fluid to gravity bleed from the open port of the component. 4.
Reconnect the brake pipe to the component and tighten securely. 5. Have an assistant slowly
depress the brake pedal fully and maintain steady pressure on the pedal. 6. Loosen the same
brake pipe to purge air from the open port of the component. 7. Tighten the brake pipe, then have
the assistant slowly release the brake pedal. 8. Wait 15 seconds, then repeat steps 3.3-3.7 until all
air is purged from the same port of the component. 9. With the brake pipe installed securely to the
master cylinder, proportioning valve assembly, or brake modulator assembly, and after all air has
been purged from the first port of the component that was bled, loosen and separate the next brake
pipe from the component, then repeat steps 3.3-3.8 until each of the ports on the component has
been bled.
10. After completing the final component port bleeding procedure, ensure that each of the brake
pipe-to-component fittings is properly tightened.
4. Ensure the brake master cylinder reservoir remains at least half-full during this bleeding
procedure. Add fluid as needed to maintain the proper
level. Clean the outside of the reservoir on and around the reservoir cap prior to removing the cap
and diaphragm.
5. Install a proper box-end wrench onto the RIGHT REAR wheel hydraulic circuit bleeder valve. 6.
Install a transparent hose over the end of the bleeder valve. 7. Have an assistant slowly depress
the brake pedal fully and maintain steady pressure on the pedal. 8. Loosen the bleeder valve to
purge air from the wheel hydraulic circuit. 9. Tighten the bleeder valve, then have the assistant
slowly release the brake pedal.
10. Wait 15 seconds, then repeat steps 8-10 until all air is purged from the same wheel hydraulic
circuit. 11. With the right rear wheel hydraulic circuit bleeder valve tightened securely, and after all
air has been purged from the right rear hydraulic circuit,
install a proper box-end wrench onto the LEFT FRONT wheel hydraulic circuit bleeder valve.
12. Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11. 13. With
the left front wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left front hydraulic circuit,
install a proper box-end wrench onto the LEFT REAR wheel hydraulic circuit bleeder valve.
14. Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11. 15. With
the left rear wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left rear hydraulic circuit,
install a proper box-end wrench onto the RIGHT FRONT wheel hydraulic circuit bleeder valve.
16. Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11. 17. After
completing the final wheel hydraulic circuit bleeding procedure, ensure that each of the 4 wheel
hydraulic circuit bleeder valves is properly
tightened.
18. Slowly depress and release the brake pedal. Observe the feel of the brake pedal. 19. If the
brake pedal feels spongy, repeat the bleeding procedure again. If the brake pedal still feels spongy
after repeating the bleeding procedure,
perform the following steps:
1. Inspect the brake system for external leaks. 2. Pressure bleed the hydraulic brake system in
order to purge any air that may still be trapped in the system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Bleeding > System
Information > Service and Repair > Antilock Brake System Automated Bleed Procedure > Page 11412
20. Turn the ignition key ON, with the engine OFF. Check to see if the brake system warning lamp
remains illuminated.
Important: DO NOT allow the vehicle to be driven until it is diagnosed and repaired.
21. If the brake system warning lamp remains illuminated. Refer to Symptoms - Hydraulic Brakes .
Pressure
Hydraulic Brake System Bleeding (Pressure)
Tools Required
* J 29532 Diaphragm Type Brake Pressure Bleeder, or equivalent
* J 44894-A Brake Pressure Bleeder Adapter
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Place a clean shop cloth beneath the brake master cylinder to catch brake fluid spills. 2. With the
ignition OFF and the brakes cool, apply the brakes 3-5 times, or until the brake pedal becomes
firm, in order to deplete the brake booster
power reserve.
3. If you have performed a brake master cylinder bench bleeding on this vehicle, or if you
disconnected the brake pipes from the master cylinder, or
if you have disconnected the brake pipes from the proportioning valve assembly or the brake
modulator assembly, you must perform the following steps to bleed air at the ports of the hydraulic
component:
1. If removal of the reservoir cap and diaphragm is necessary, clean the outside of the reservoir on
and around the cap prior to removal. 2. With the brake pipes installed securely to the master
cylinder, proportioning valve assembly, or brake modulator assembly, loosen and separate
one of the brake pipes from the port of the component. For the proportioning valve assembly or the
brake modulator assembly, perform these steps in the sequence of system flow; begin with the fluid
feed pipes from the master cylinder.
3. Allow a small amount of brake fluid to gravity bleed from the open port of the component. 4.
Reconnect the brake pipe to the component and tighten securely. 5. Have an assistant slowly
depress the brake pedal fully and maintain steady pressure on the pedal. 6. Loosen the same
brake pipe to purge air from the open port of the component. 7. Tighten the brake pipe, then have
the assistant slowly release the brake pedal. 8. Wait 15 seconds, then repeat steps 3.3-3.7 until all
air is purged from the same port of the component. 9. With the brake pipe installed securely to the
master cylinder, proportioning valve assembly, or brake modulator assembly, and after all air has
been purged from the first port of the component that was bled, loosen and separate the next brake
pipe from the component, then repeat steps 3.3-3.8 until each of the ports on the component has
been bled.
10. After completing the final component port bleeding procedure, ensure that each of the brake
pipe-to-component fittings is properly tightened.
4. Clean the outside of the reservoir on and around the reservoir cap prior to removing the cap and
diaphragm. 5. Install the J 44894-A to the brake master cylinder reservoir. 6. Connect the J 29532 ,
or equivalent, to the J 44894-A . 7. Charge the J 29532 , or equivalent, air tank to 175-205 kPa
(25-30 psi). 8. Open the J 29532 , or equivalent, fluid tank valve to allow pressurized brake fluid to
enter the brake system. 9. Wait approximately 30 seconds, then inspect the entire hydraulic brake
system in order to ensure that there are no existing external brake fluid
leaks. Any brake fluid leaks identified require repair prior to completing this procedure.
10. Install a proper box-end wrench onto the RIGHT REAR wheel hydraulic circuit bleeder valve.
11. Install a transparent hose over the end of the bleeder valve. 12. Loosen the bleeder valve to
purge air from the wheel hydraulic circuit. Allow fluid to flow until air bubbles stop flowing from the
bleeder, then
tighten the bleeder valve.
13. With the right rear wheel hydraulic circuit bleeder valve tightened securely, and after all air has
been purged from the right rear hydraulic circuit,
install a proper box-end wrench onto the LEFT FRONT wheel hydraulic circuit bleeder valve.
14. Install a transparent hose over the end of the bleeder valve, then repeat steps 13-14. 15. With
the left front wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left front hydraulic circuit,
install a proper box-end wrench onto the LEFT REAR wheel hydraulic circuit bleeder valve.
16. Install a transparent hose over the end of the bleeder valve, then repeat steps 13-14. 17. With
the left rear wheel hydraulic circuit bleeder valve tightened securely, and after all air has been
purged from the left rear hydraulic circuit,
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Bleeding > System
Information > Service and Repair > Antilock Brake System Automated Bleed Procedure > Page 11413
install a proper box-end wrench onto the RIGHT FRONT wheel hydraulic circuit bleeder valve.
18. Install a transparent hose over the end of the bleeder valve, then repeat steps 13-14. 19. After
completing the final wheel hydraulic circuit bleeding procedure, ensure that each of the 4 wheel
hydraulic circuit bleeder valves is properly
tightened.
20. Close the J 29532 , or equivalent, fluid tank valve, then disconnect the J 29532 , or equivalent,
from the J 44894-A . 21. Remove the J 44894-A from the brake master cylinder reservoir. 22.
Slowly depress and release the brake pedal. Observe the feel of the brake pedal. 23. If the brake
pedal feels spongy perform the following steps:
1. Inspect the brake system for external leaks. 2. If equipped with antilock brakes, using a scan
tool, perform the antilock brake system automated bleeding procedure to remove any air that
may have been trapped in the brake pressure modulator valve (BPMV).
24. Turn the ignition key ON, with the engine OFF. Check to see if the brake system warning lamp
remains illuminated.
Important: DO NOT allow the vehicle to be driven until it is diagnosed and repaired.
25. If the brake system warning lamp remains illuminated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Bleeding > System
Information > Service and Repair > Antilock Brake System Automated Bleed Procedure > Page 11414
Brake Bleeding: Service and Repair Hydraulic Brake System Flushing
Hydraulic Brake System Flushing Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Inspect the brake fluid for the following conditions, indicating brake fluid contamination:
* Fluid separation, indicating two types of fluid are present; a substance other than the
recommended brake fluid has been introduced into the brake hydraulic system
- Swirled appearance-Oil-based substance
- Layered appearance-Silicone-based substance
* Fluid discoloration, indicating the presence of moisture or particles that have been introduced into
the brake hydraulic system
- Cloudy appearance-Moisture
- Dark appearance/suspended particles in fluid-Dirt, rust, corrosion, brake dust
2. Inspect the master cylinder reservoir cap diaphragm and the reservoir-to-master cylinder
grommets for swelling, indicating brake fluid
contamination.
3. If the brake fluid WAS contaminated with an oil-based or a silicone-based substance, indicated
by fluid separation and/or a swollen master
cylinder reservoir cap diaphragm and/or swollen reservoir-to-master cylinder grommets, perform
the following:
1. Remove ALL of the following components listed from the vehicle. Each component contains
internal rubber seals/linings which have been
contaminated by the contaminated brake fluid in the brake hydraulic system. Refer to the
procedures indicated:
* Master Cylinder Reservoir Replacement
* Master Cylinder Replacement
* Front Brake Hose Replacement
* Rear Brake Hose Replacement
* Front Brake Caliper Replacement
* Rear Brake Caliper Replacement
* Brake Pressure Modulator Valve Replacement
2. Clean out all the hydraulic brake pipes using denatured alcohol, or equivalent. 3. Dry the brake
pipes using non-lubricated, filtered air. 4. Repair or replace ALL of the following components listed
and install them to the vehicle. Each component contains internal rubber
seals/linings which have been contaminated by the contaminated brake fluid in the brake hydraulic
system. Refer to the procedures indicated:
* Master Cylinder Reservoir Replacement Replace the brake master cylinder reservoir cap
diaphragm.
* Master Cylinder Replacement Also perform the following: Clean the brake master cylinder
reservoir using denatured alcohol, or equivalent, then dry the reservoir using non-lubricated, filtered
air. Inspect the reservoir for cracks and/or damage and replace if necessary.
* Front Brake Hose Replacement
* Rear Brake Hose Replacement
* Front Brake Caliper Replacement
* Rear Brake Caliper Replacement
* Brake Pressure Modulator Valve Replacement
4. If the brake fluid was NOT contaminated with an oil-based or a silicone-based substance, but
WAS contaminated with water or dirt, rust,
corrosion, and/or brake dust, replace the brake master cylinder reservoir cap diaphragm which may
have allowed the moisture or particles to enter the hydraulic system.
5. Pressure bleed the hydraulic brake system; begin the procedure with the pressure bleeder
reservoir filled to the maximum-fill level with the correct
brake fluid as indicated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Bleeding > System
Information > Service and Repair > Antilock Brake System Automated Bleed Procedure > Page 11415
Brake Bleeding: Service and Repair Master Cylinder Bench Bleeding
Master Cylinder Bench Bleeding
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Secure the mounting flange of the brake master cylinder in a bench vise so that the rear of the
primary piston is accessible. 2. Remove the cap from the hose nipple on the master cylinder
reservoir. 3. Install suitable fittings to the master cylinder ports that match the type of flare seat
required and also provide for hose attachment. 4. Install transparent hoses to the fittings, then
route the hoses into the master cylinder reservoir. 5. Ensure that the ends of the transparent hoses
running into the reservoir are fully submerged in the brake fluid. 6. Using a smooth, round-ended
tool, depress and release the primary piston as far as it will travel, a depth of about 25 mm (1 in),
several times.
Observe the flow of fluid coming from the ports. As air is bled from the primary and secondary
pistons, the effort required to depress the primary piston will increase and the amount of travel will
decrease.
7. Continue to depress and release the primary piston until fluid flows freely from the ports with no
evidence of air bubbles. 8. Remove the transparent hoses from the reservoir. 9. Install the cap to
the hose nipple on the reservoir, to prevent fluid loss and contamination.
10. Remove the fittings with the transparent hoses from the master cylinder ports. Wrap the master
cylinder with a clean shop cloth to prevent brake
fluid spills.
11. Remove the master cylinder from the vise.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Caliper > Component
Information > Testing and Inspection
Brake Caliper: Testing and Inspection
Brake Caliper Inspection
Caution: Refer to Brake Dust Caution .
Caution: Refer to Brake Fluid Irritant Caution .
1. Inspect the brake caliper housing (1) for cracks, excess wear, and/or damage. If any of these
conditions are present, the brake caliper requires
replacement.
2. Inspect the caliper piston dust boot seal (2) for cracks, tears, cuts, deterioration and/or improper
seating in the caliper body. If any of these
conditions are present, the brake caliper requires overhaul or replacement.
3. Inspect for brake fluid leakage around the caliper piston dust boot seal (2) and on the disc brake
pads. If there is any evidence of brake fluid
leakage, the brake caliper requires overhaul or replacement.
4. Inspect for smooth and complete travel of the caliper piston, or pistons, into the caliper bore, or
bores:
The movement of a caliper piston into a caliper bore should be smooth and even. If a caliper piston
is frozen or difficult to bottom, the caliper requires overhaul or replacement.
* For single piston caliper applications, insert a discarded inner brake pad (2) or block of wood in
front of the piston. Using a large C-clamp (1) installed over the body of the caliper (3) and against
the brake pad or block of wood, slowly bottom the piston in the bore.
* For dual piston caliper applications, insert a discarded inner brake pad (2) or block of wood in
front of the pistons. Using 2 large C-clamps (1) installed over the body of the caliper (3) and against
the brake pad or block of wood, slowly bottom the pistons evenly into the bores.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement
Brake Caliper: Service and Repair Front Brake Caliper Replacement
Front Brake Caliper Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11421
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11422
Brake Caliper: Service and Repair Rear Brake Caliper Replacement
Rear Brake Caliper Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11423
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11424
Brake Caliper: Service and Repair Front Brake Caliper Bracket Replacement
Front Brake Caliper Bracket Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11425
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11426
Brake Caliper: Service and Repair Rear Brake Caliper Bracket Replacement
Rear Brake Caliper Bracket Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Caliper > Component
Information > Service and Repair > Front Brake Caliper Replacement > Page 11427
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Fluid > Component
Information > Specifications
Brake Fluid: Specifications
HYDRAULIC BRAKE SYSTEM
Delco Supreme 11 Brake Fluid or equivalent DOT-3 brake fluid.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Fluid Level Sensor/Switch
> Component Information > Locations
Brake Fluid Level Sensor/Switch: Locations
Near the Brake Booster
1 - Brake Fluid Level Switch 2 - LF Strut Tower 3 - Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Fluid Level Sensor/Switch
> Component Information > Locations > Page 11434
Brake Fluid Level Sensor/Switch: Diagrams
Brake Fluid Level Switch
Brake Fluid Level Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Fluid Level Sensor/Switch
> Component Information > Locations > Page 11435
Brake Fluid Level Sensor/Switch: Service and Repair
Master Cylinder Fluid Level Sensor Replacement
Removal Procedure
1. Remove the underhood electrical center. 2. Disconnect the brake fluid level sensor electrical
connector.
3. While simultaneously depressing the retaining tabs on the opposite side of the sensor electrical
connection, carefully pull the sensor from the
master cylinder reservoir.
4. Remove the low brake fluid level sensor.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Fluid Level Sensor/Switch
> Component Information > Locations > Page 11436
1. While noting the proper orientation, install the brake fluid level sensor to the master cylinder. 2.
Press the brake fluid level sensor firmly into the master cylinder reservoir, ensuring that the
retaining tabs are fully engaged.
3. Connect the brake fluid level sensor electrical connector. 4. Install the underhood electrical
center.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Hose/Line > Component
Information > Service and Repair > Brake Pipe Replacement
Brake Hose/Line: Service and Repair Brake Pipe Replacement
Brake Pipe Replacement
Tools Required
J 45405 Brake Pipe Flaring Kit
Caution: Refer to Brake Fluid Irritant Caution .
Caution: Always use double walled steel brake pipe when replacing brake pipes. The use of any
other pipe is not recommended and may cause brake system failure. Carefully route and retain
replacement brake pipes. Always use the correct fasteners and the original location for
replacement brake pipes. Failure to properly route and retain brake pipes may cause damage to
the brake pipes and cause brake system failure.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
Important: When servicing the brake pipes, note the following:
* If sectioning the brake pipe, use replacement pipe of the same type and outside diameter.
* Use fittings of the appropriate size and type.
*
Only create flares of the same type or design as originally equipped on the vehicle.
1. Inspect the area of brake pipe to be repaired or replaced. 2. Release the brake pipe to be
replaced from the retainers, as required. 3. Select an appropriate location to section the brake pipe,
if necessary.
* Allow adequate clearance in order to maneuver the J 45405 .
* Avoid sectioning the brake pipe at bends or mounting points.
4. Using a string or wire, measure the length of the pipe to be replaced including all pipe bends. 5.
Add to the measurement taken the appropriate additional length required for each flare to be
created.
* 6.35 mm (0.250 in) for 4.76 mm (3/16 in) diameter pipe
* 9.50 mm (0.374 in) for 6.35 mm (1/4 in) diameter pipe
Important: Ensure that the brake pipe end to be flared is cut at a square, 90 degree angle to the
pipe length.
6. Using the pipe cutter included in the J 45405 , carefully cut the brake pipe squarely to the
measured length. 7. Remove the sectioned brake pipe from the vehicle. 8. Select the appropriate
size of brake pipe and tube nuts, as necessary. The brake pipe outside diameter determines brake
pipe size.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Hose/Line > Component
Information > Service and Repair > Brake Pipe Replacement > Page 11441
9. Strip the nylon coating from the brake pipe end to be flared, if necessary.
* Select the appropriate blade on the coating stripping tool included in the J 45405 , by unthreading
the blade block from the stripping tool and installing the block with the desired blade facing the tool
rollers.
- 6.35 mm (0.250 in) blade for 4.76 mm (3/16 in) diameter pipe
- 9.50 mm (0.374 in) blade for 6.35 mm (1/4 in) diameter pipe
* Insert the brake pipe end to be flared into the stripping tool to the depth of the ledge on the tool
rollers.
* While holding the brake pipe firmly against the stripping tool roller ledges, rotate the thumbwheel
of the tool until the blade contacts the brake pipe coated surface. Important: Do not gouge the
metal surface of the brake pipe.
* Rotate the stripping tool in a clockwise direction, ensuring that the brake pipe end remains
against the tool roller ledges.
* After each successive revolution of the stripping tool, carefully rotate the thumbwheel of the tool
clockwise, in order to continue stripping the coating from the brake pipe until the metal pipe surface
is exposed.
* Loosen the thumbwheel of the tool and remove the brake pipe. Important: Ensure that all loose
remnants of the nylon coating have been removed from the brake pipe.
* Inspect the stripped end of the brake pipe to ensure that the proper amount of coating has been
removed.
6.35 mm (0.250 in) for 4.76 mm (3/16 in) diameter pipe
- 9.50 mm (0.374 in) for 6.35 mm (1/4 in) diameter pipe
10. Chamfer the inside and outside diameter of the pipe with the de-burring tool included in the J
45405 . 11. Install the tube nuts on the brake pipe, noting their orientation. 12. Clean the brake pipe
and the J 45405 of lubricant, contaminants, and debris.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Hose/Line > Component
Information > Service and Repair > Brake Pipe Replacement > Page 11442
13. Loosen the die clamping screw of the J 45405 . 14. Select the corresponding die set and install
the die halves into the die cage with the full, flat face of one die facing the clamping screw, and the
counterbores of both dies facing the forming ram.
15. Place the flat face of an unused die (1) against the die halves in the clamping cage and hold
firmly against the counterbored face of the dies. 16. Insert the prepared end of the pipe to be flared
through the back of the dies until the pipe is seated against the flat surface of the unused die (1).
17. Remove the unused die (1). 18. Ensure that the rear of both dies are seated firmly against the
enclosed end of the die cage. 19. Firmly hand tighten the clamping screw (2) against the dies.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Hose/Line > Component
Information > Service and Repair > Brake Pipe Replacement > Page 11443
20. Select the appropriate forming mandrel and place into the forming ram. 21. Rotate the hydraulic
fluid control valve clockwise to the closed position. 22. Rotate the body of the J 45405 until it
bottoms against the die cage.
23. While guiding the forming mandrel into the exposed end of pipe to be flared, operate the lever
of the J 45405 until the forming mandrel bottoms
against the clamping dies.
24. Rotate the hydraulic fluid control valve counterclockwise to the open position to allow the
hydraulic forming ram to retract.
25. Insert the finishing cone into the forming ram. 26. Rotate the hydraulic fluid control valve
clockwise to the closed position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Hose/Line > Component
Information > Service and Repair > Brake Pipe Replacement > Page 11444
27. Rotate the body of the J 45405 until it bottoms against the die cage. 28. While guiding the
finishing cone into the exposed end of pipe to be flared, operate the lever of the J 45405 until the
finishing cone bottoms
against the dies.
29. Rotate the hydraulic fluid control valve counterclockwise to the open position to allow the
hydraulic forming ram to retract. 30. Loosen the die clamping screw and remove the dies and pipe.
31. If necessary, lightly tap the dies until the die halves separate.
32. Inspect the brake pipe flare for correct shape and diameter (a).
*
6.74-7.10 mm (0.265-0.279 in) flare diameter for 4.76 mm (3/16 in) diameter pipe
* 8.57-9.27 mm (0.344-0.358 in) flare diameter for 6.35 mm (1/4 in) diameter pipe
33. If necessary, using the removed section of brake pipe as a template, shape the new pipe with a
suitable brake pipe bending tool.
Important: When installing the pipe, maintain a clearance of 19 mm (3/4 in) from all moving or
vibrating components.
34. Install the pipe to the vehicle with the appropriate brake pipe unions, as required. 35. If
previously released, secure the brake pipe to the retainers. 36. Bleed the hydraulic brake system.
37. With the aid of an assistant, inspect the brake pipe flares for leaks by starting the engine and
applying the brakes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Hose/Line > Component
Information > Service and Repair > Brake Pipe Replacement > Page 11445
Brake Hose/Line: Service and Repair Front Brake Hose Replacement
Front Brake Hose Replacement
Caution: Refer to Brake Fluid Irritant Caution .
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
Removal Procedure
1. Raise and support the vehicle. 2. Remove the tire and wheel assembly. 3. Release the wheel
speed sensor wire harness retainers and harness from the front brake hose.
4. Clean all dirt and foreign material from the brake hose ends and the brake pipe fitting. 5. Using a
backup wrench on the hose fitting, disconnect the brake pipe fitting from the brake hose. Cap or
plug the brake pipe fitting end and the
brake hose end to prevent fluid loss and contamination.
6. Release the retaining clip from the brake hose mounting bracket and the brake hose.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Hose/Line > Component
Information > Service and Repair > Brake Pipe Replacement > Page 11446
7. Remove the brake hose fitting bolt from the brake caliper. 8. Remove the brake hose bracket
retaining bolt. 9. Remove the brake hose from the brake caliper.
10. Remove and discard the copper brake hose gaskets. These gaskets may be stuck to the brake
caliper and/or the brake hose end. 11. Cap or plug the opening in the brake caliper and the brake
hose to prevent fluid loss and contamination.
Installation Procedure
1. Remove the caps or plugs from the opening in the brake caliper and the brake hose.
Important: Install NEW copper brake hose gaskets.
2. Assemble the NEW copper brake hose gaskets, and the brake hose bolt, to the brake hose.
Notice: Refer to Fastener Notice .
3. Install the brake hose fitting bolt to the brake caliper.
Tighten the bolt to 40 N.m (30 lb ft).
4. Install the front brake hose bracket retaining bolt.
Tighten the bolt to 12 N.m (106 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Hose/Line > Component
Information > Service and Repair > Brake Pipe Replacement > Page 11447
5. Remove the caps or plugs from the brake pipe fitting end and the brake hose end. 6. Using a
backup wrench on the hose fitting, connect the brake pipe fitting at the front brake hose.
Tighten the fitting to 18 N.m (13 lb ft).
7. Install the brake hose retaining clip to the brake hose and the brake hose mounting bracket. 8.
Connect the wheel speed sensor wire harness and harness retainers to the front brake hose. 9.
Install the tire and wheel assembly.
10. Ensure that the hose does not make contact with any part of the suspension. Check the hose in
extreme right and extreme left turn conditions. If the
hose makes contact, remove the hose and correct the condition.
11. Bleed the hydraulic brake system. 12. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Hose/Line > Component
Information > Service and Repair > Brake Pipe Replacement > Page 11448
Brake Hose/Line: Service and Repair Rear Brake Hose Replacement
Rear Brake Hose Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Hose/Line > Component
Information > Service and Repair > Brake Pipe Replacement > Page 11449
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Hydraulic Control Assembly Antilock Brakes > Component Information > Service and Repair > Brake Pressure Modulator Valve Replacement
Hydraulic Control Assembly - Antilock Brakes: Service and Repair Brake Pressure Modulator Valve
Replacement
Brake Pressure Modulator Valve Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Hydraulic Control Assembly Antilock Brakes > Component Information > Service and Repair > Brake Pressure Modulator Valve Replacement > Page
11454
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Hydraulic Control Assembly Antilock Brakes > Component Information > Service and Repair > Brake Pressure Modulator Valve Replacement > Page
11455
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Hydraulic Control Assembly Antilock Brakes > Component Information > Service and Repair > Brake Pressure Modulator Valve Replacement > Page
11456
Hydraulic Control Assembly - Antilock Brakes: Service and Repair Brake Pressure Modulator Valve
Bracket Replacement
Brake Pressure Modulator Valve Bracket Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Master Cylinder >
Component Information > Service and Repair > Procedures
Brake Master Cylinder: Procedures
Master Cylinder Bench Bleeding
Master Cylinder Bench Bleeding
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Secure the mounting flange of the brake master cylinder in a bench vise so that the rear of the
primary piston is accessible. 2. Remove the cap from the hose nipple on the master cylinder
reservoir. 3. Install suitable fittings to the master cylinder ports that match the type of flare seat
required and also provide for hose attachment. 4. Install transparent hoses to the fittings, then
route the hoses into the master cylinder reservoir. 5. Ensure that the ends of the transparent hoses
running into the reservoir are fully submerged in the brake fluid. 6. Using a smooth, round-ended
tool, depress and release the primary piston as far as it will travel, a depth of about 25 mm (1 in),
several times.
Observe the flow of fluid coming from the ports. As air is bled from the primary and secondary
pistons, the effort required to depress the primary piston will increase and the amount of travel will
decrease.
7. Continue to depress and release the primary piston until fluid flows freely from the ports with no
evidence of air bubbles. 8. Remove the transparent hoses from the reservoir. 9. Install the cap to
the hose nipple on the reservoir, to prevent fluid loss and contamination.
10. Remove the fittings with the transparent hoses from the master cylinder ports. Wrap the master
cylinder with a clean shop cloth to prevent brake
fluid spills.
11. Remove the master cylinder from the vise.
Master Cylinder Reservoir Filling
Master Cylinder Reservoir Filling
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Visually inspect the brake fluid level through the brake master cylinder auxiliary reservoir. 2. If
the brake fluid level is at or below the half-full point during routine fluid checks, the brake system
should be inspected for wear and possible
brake fluid leaks.
3. If the brake fluid level is at or below the half-full point during routine fluid checks, and an
inspection of the brake system did not reveal wear or
brake fluid leaks, the brake fluid may be topped-off up to the maximum-fill level.
4. If brake system service was just completed, the brake fluid may be topped-off up to the
maximum-fill level. 5. If the brake fluid level is above the half-full point, adding brake fluid is not
recommended under normal conditions. 6. If brake fluid is to be added to the master cylinder
auxiliary reservoir, clean the outside of the reservoir on and around the reservoir cap prior to
removing the cap and diaphragm.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Master Cylinder >
Component Information > Service and Repair > Procedures > Page 11461
Brake Master Cylinder: Removal and Replacement
Master Cylinder Reservoir Replacement
Master Cylinder Reservoir Replacement
Removal Procedure
Caution: Refer to Brake Fluid Irritant Caution .
Notice: When adding fluid to the brake master cylinder reservoir, use only GM approved or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container. The use of any type of fluid
other than the recommended type of brake fluid may cause contamination which could result in
damage to the internal rubber seals and/or rubber linings of hydraulic brake system components.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Remove the underhood electrical center. 2. Remove the brake fluid from the reservoir. Discard
the fluid into an approved container. 3. Disconnect the brake fluid level sensor electrical connector.
4. Remove the brake fluid level sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Master Cylinder >
Component Information > Service and Repair > Procedures > Page 11462
5. Remove the master cylinder reservoir attachment pins and discard the pins. 6. Release the
reservoir from the master cylinder by carefully pulling reservoir straight up. 7. Remove the reservoir
seals from the master cylinder body.
Installation Procedure
1. Install the reservoir seals to the master cylinder body. 2. Install the reservoir to the master
cylinder body by pushing the reservoir bayonets straight down into the seals in the master cylinder
body. 3. Install NEW reservoir attachment pins. Ensure that the attachment pins are fully and firmly
seated.
4. Install the brake fluid level sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Master Cylinder >
Component Information > Service and Repair > Procedures > Page 11463
5. Connect the brake fluid level sensor electrical connector. 6. Install the underhood electrical
center. 7. Fill the master cylinder reservoir. 8. Bleed the brake system.
Master Cylinder Replacement
Master Cylinder Replacement
Removal Procedure
Caution: Refer to Brake Fluid Irritant Caution .
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1. Remove the underhood electrical center. 2. Disconnect the electrical connector from the brake
fluid level sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Master Cylinder >
Component Information > Service and Repair > Procedures > Page 11464
3. Disconnect the brake pipes from the master cylinder.
Important: Install a rubber cap or plug to the exposed brake pipe fitting ends in order to prevent
brake fluid loss and contamination.
4. Plug the open brake pipe ends.
5. Remove master cylinder mounting nuts. 6. Remove the master cylinder from the vehicle. 7.
Drain the master cylinder reservoir of all brake fluid.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Hydraulic System, Brakes > Brake Master Cylinder >
Component Information > Service and Repair > Procedures > Page 11465
1. Bench bleed the master cylinder. 2. Install the master cylinder to the brake booster.
Notice: Refer to Fastener Notice .
3. Install the master cylinder mounting nuts.
Tighten the master cylinder mounting nuts to 25 N.m (18 lb ft).
4. Remove the plugs from the brake pipes. 5. Connect the brake pipes to the master cylinder.
Tighten the brake pipe fittings at the master cylinder to 18 N.m (13 lb ft).
6. Connect the electrical connector to the brake fluid level sensor. 7. Install the underhood electrical
center. 8. Bleed the hydraulic brake system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Actuator >
Component Information > Service and Repair
Parking Brake Actuator: Service and Repair
Parking Brake Actuator Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Cable > Component
Information > Service and Repair > Parking Brake Front Cable Replacement
Parking Brake Cable: Service and Repair Parking Brake Front Cable Replacement
Parking Brake Front Cable Replacement
Removal Procedure
1. Disable the supplemental inflatable restraint (SIR) system. 2. Remove the front floor console.
3. With park brake lever in the released position, using ONLY hand tools, remove the park brake
cable adjusting nut and washer. 4. Release the rear park brake cable ends from the cable equalizer
on the front cable. 5. Remove the front park brake cable from the park brake lever by pulling the
cable rearward.
Installation Procedure
1. Install the front park brake cable to the park brake lever. 2. Install the rear cable ends to the
cable equalizer.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Cable > Component
Information > Service and Repair > Parking Brake Front Cable Replacement > Page 11474
3. Using ONLY hand tools, install the washer and NEW adjusting nut (1) to the front park brake
cable. 4. Adjust the park brake cable tension. 5. Install the front floor console. 6. Enable the SIR
system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Cable > Component
Information > Service and Repair > Parking Brake Front Cable Replacement > Page 11475
Parking Brake Cable: Service and Repair Parking Brake Rear Cable Replacement
Parking Brake Rear Cable Replacement
Removal Procedure
Tools Required
J 37043 Park Brake Cable Release Tool
1. Remove the front floor console. 2. Release the park brake lever and is in the fully released
position.
3. Release the tension from the park brake cable system at the front cable adjusting nut (1).
Using only hand tools, loosen the adjusting nut (1) completely to the end of the front cable threaded
rod.
4. Remove the rear carpet retainers. 5. Position the carpet forward in order to access the rear park
brake cables and body pass-through grommets. 6. With the park brake lever (1) in the released
position, release the appropriate rear park brake cable (2) from the cable equalizer. 7. Release the
rear cable fitting from the park brake lever bracket and remove the cable from the lever assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Cable > Component
Information > Service and Repair > Parking Brake Front Cable Replacement > Page 11476
8. Fold back the park brake cable routing tabs on the vehicle interior floor. 9. Release the rear park
brake cable body pass-through grommet.
10. Raise and support the vehicle. 11. Remove the bolt (1) from the park brake cable-to-underbody
retainer.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Cable > Component
Information > Service and Repair > Parking Brake Front Cable Replacement > Page 11477
12. Remove the bolt (1) from the park brake cable retainer at the lower suspension trailing arm. 13.
Remove the cable (2) from the opening in the vehicle underbody. 14. Remove the rear tire and
wheel assembly.
15. Slide the inner cable (1) forward and remove from the actuator. 16. Slide the spring (2) forward
17. Using the J 37043 , remove the park brake cable from the mounting bracket
Installation Procedure
Important: After installing the park brake cable in the mounting bracket, ensure that the locking tabs
on the cable are open and seated correctly against the mounting bracket.
1. Install the park brake cable in the mounting bracket.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Cable > Component
Information > Service and Repair > Parking Brake Front Cable Replacement > Page 11478
2. Slide the inner cable forward (1) and install on the park brake actuator . 3. Position the spring (2)
against the mounting bracket. 4. Install the rear tire and wheel assembly.
5. Insert the cable (2) through the opening in the vehicle underbody. 6. Install the park brake cable
retaining bracket to the rear suspension lower trailing arm.
Notice: Refer to Fastener Notice .
7. Install the bolt (1) to the park brake cable retainer and lower trailing arm.
Tighten the bolt and nut to 12 N.m (106 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Cable > Component
Information > Service and Repair > Parking Brake Front Cable Replacement > Page 11479
8. Install and secure park brake cable pass-through grommet to the opening in the vehicle
underbody. 9. Install the park brake cable (2) to the underbody retainer.
10. Install the bolt to the park brake cable retainer and the vehicle underbody (3).
Tighten the bolt to 25 N.m (18 lb ft).
11. Lower the vehicle.
12. Secure the cable fitting to the park brake lever bracket. Attempt to pull the park brake cable free
of the lever bracket, to ensure that the retaining
tabs on the fitting are properly secured.
13. Install the cable end (2) to the cable equalizer.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Cable > Component
Information > Service and Repair > Parking Brake Front Cable Replacement > Page 11480
14. Position park brake cable to routing tabs on vehicle interior floor. 15. Secure park brake cable
to floor by folding routing tabs over park brake cable. 16. Reposition the carpet to the installed
position. 17. Install the rear carpet retainers. 18. Adjust the park brake cable tension. 19. Install the
front floor console.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Lever > Component
Information > Locations
Parking Brake Lever: Locations
Park Brake Assembly
1 - Park Brake Switch 2 - Park Brake Handle 3 - Floor Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Lever > Component
Information > Locations > Page 11484
Parking Brake Lever: Service and Repair
Park Brake Lever Assembly Replacement
Removal Procedure
1. Disable the supplemental inflatable restraint (SIR) system. 2. Remove the front floor console. 3.
Ensure that the park brake lever is in the fully released position.
4. Release the tension from the park brake cable system at the front cable adjusting nut (1). 5.
Using ONLY hand tools, loosen the adjusting nut (1) completely to the end of the front cable
threaded rod.
6. Disconnect the electrical connector from the park brake warning lamp switch.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Lever > Component
Information > Locations > Page 11485
7. With the park brake lever (1) in the released position, release the rear park brake cable (2) ends
from the cable equalizer. 8. Release the rear cable fittings from the park brake lever bracket.
9. Remove the park brake lever mounting nuts.
10. Remove the park brake lever assembly from the vehicle.
Installation Procedure
1. Install the park brake lever assembly to the vehicle.
Notice: Refer to Fastener Notice .
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Lever > Component
Information > Locations > Page 11486
2. Install the park brake lever assembly mounting nuts.
Tighten the nuts to 25 N.m (18 lb ft).
3. Secure the rear cable fittings to the park brake lever bracket. Attempt to pull the park brake
cables free of the lever bracket, to ensure that the
retaining tabs on the fittings are properly secured.
4. Install the cable ends to the cable equalizer.
5. Connect the electrical connector to the park brake warning lamp switch. 6. Adjust the park brake
cable tension. 7. Install the front floor console. 8. Enable the SIR system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Shoe > Component
Information > Service and Repair
Parking Brake Shoe: Service and Repair
Park Brake Shoe Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Shoe > Component
Information > Service and Repair > Page 11490
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Warning Switch >
Component Information > Locations
Parking Brake Warning Switch: Locations
Park Brake Assembly
1 - Park Brake Switch 2 - Park Brake Handle 3 - Floor Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Warning Switch >
Component Information > Locations > Page 11494
Parking Brake Warning Switch: Diagrams
Park Brake Switch
Park Brake Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Parking Brake System > Parking Brake Warning Switch >
Component Information > Locations > Page 11495
Parking Brake Warning Switch: Service and Repair
Park Brake Warning Lamp Switch Replacement
Removal Procedure
1. Disable the supplemental inflatable restraint (SIR) system. 2. Remove the front floor console. 3.
Disconnect the warning lamp switch electrical connector (2). 4. Remove the warning lamp switch
mounting screw (1). 5. Remove the switch from the park brake lever assembly.
Installation Procedure
1. Align the park brake warning lamp switch locating tab to the locating hole on the park brake lever
assembly. 2. Install the switch to the park brake lever.
Notice: Refer to Fastener Notice .
3. Install the park brake warning lamp switch mounting screw (1).
Tighten the screw to 4 N.m (35 lb in).
4. Connect the park brake warning lamp switch electrical connector (2). 5. Install the front floor
console. 6. Enable the SIR system. 7. Verify correct park brake warning lamp operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Power Brake Assist > Vacuum Brake Booster > Component
Information > Service and Repair
Vacuum Brake Booster: Service and Repair
Vacuum Brake Booster Replacement
Removal Procedure
1. Remove and position aside the underhood electrical center. 2. Disconnect the coolant surge
hose from the surge tank and position aside. 3. Remove the master cylinder mounting nuts. Do not
disconnect the brake pipes from the master cylinder. 4. Carefully pull the master cylinder away
from the vacuum booster and position aside. 5. Disconnect the vacuum booster check valve and
hose assembly from the booster.
6. Without disconnecting the electrical connectors, remove the transaxle control module (TCM) with
the bracket from the bracket on the strut tower
and position aside on top of the engine.
7. Remove the brake pressure modulator valve assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Power Brake Assist > Vacuum Brake Booster > Component
Information > Service and Repair > Page 11500
8. Remove the brake pressure modulator valve bracket.
9. Remove the brake booster push rod-to-brake pedal retaining clip.
10. Remove the foam washer from the brake pedal assembly.
11. Remove the brake booster mounting nuts.
Important: Ensure that the foam insulator on the mounting surface of the brake booster withdraws
with the booster.
12. Disengage the brake booster from the front of dash and the brake pedal bracket. Maneuver the
booster toward the center of the vehicle in order to
ease removal.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Power Brake Assist > Vacuum Brake Booster > Component
Information > Service and Repair > Page 11501
Installation Procedure
1. Install the foam insulator the vacuum brake booster. 2. Install the brake booster to the vehicle. 3.
Install, but do not tighten, the booster mounting nuts. 4. Lightly lubricate the booster push rod pivot
pin on the brake pedal with silicone lubricant. 5. Install the booster push rod to the pivot pin on the
brake pedal. 6. Install the foam washer to the pivot pin. 7. Install the brake booster push rod
retaining clip.
8. Fully seat the brake booster to the front of dash and the brake pedal assembly.
Notice: Refer to Fastener Notice .
9. Tighten the vacuum brake booster mounting nuts.
Tighten the nuts to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Power Brake Assist > Vacuum Brake Booster > Component
Information > Service and Repair > Page 11502
10. Install the brake pressure modulator valve bracket. 11. Install the brake pressure modulator
valve assembly.
12. Install the vacuum booster check valve and hose assembly to the booster. 13. Reposition and
install the master cylinder to the booster.
14. Install the coolant surge hose and clamp to the surge tank. 15. Install the underhood electrical
center. 16. If necessary, bleed the brake system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Power Brake Assist > Vacuum Brake Booster Check Valve >
Component Information > Service and Repair
Vacuum Brake Booster Check Valve: Service and Repair
Vacuum Brake Booster Check Valve and/or Hose Replacement
Removal Procedure
1. Release the retaining clamp (1) and remove the vacuum hose (2) from the vacuum port on the
engine.
2. Remove the check valve and hose from the brake booster by gently turning the check valve right
then left while pulling straight out from the
grommet.
3. Remove the vacuum hose from the check valve.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Power Brake Assist > Vacuum Brake Booster Check Valve >
Component Information > Service and Repair > Page 11506
1. Install the vacuum hose to the check valve. 2. Install the brake booster check valve and hose
assembly to the booster.
3. Install the vacuum hose (2) to the engine vacuum port. 4. Install the vacuum hose clamp (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 >
Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 >
Campaign - ESC/Steering Module Reprogramming > Page 11516
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 >
Campaign - ESC/Steering Module Reprogramming > Page 11517
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 >
Campaign - ESC/Steering Module Reprogramming > Page 11518
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 >
Campaign - ESC/Steering Module Reprogramming > Page 11519
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Customer Interest: >
07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Electronic Brake Control Module: Customer Interest Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Customer Interest: >
07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page 11525
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Electronic Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Electronic Brake Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Electronic Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545 > Page 11531
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
11536
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
11537
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
11538
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
11539
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Electronic Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Electronic Brake Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Electronic Brake Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545 > Page 11545
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11551
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11552
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11553
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Electronic Brake Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 11554
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Page 11555
Electronic Brake Control Module: Locations
Near the Brake Booster
1 - Brake Fluid Level Switch 2 - LF Strut Tower 3 - Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Page 11556
Electronic Brake Control Module: Diagrams
Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Page 11557
Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Page 11558
Electronic Brake Control Module: Service and Repair
Electronic Brake Control Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control >
Electronic Brake Control Module > Component Information > Technical Service Bulletins > Page 11559
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control > Brake
Fluid Level Sensor/Switch > Component Information > Locations
Brake Fluid Level Sensor/Switch: Locations
Near the Brake Booster
1 - Brake Fluid Level Switch 2 - LF Strut Tower 3 - Electronic Brake Control Module (EBCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control > Brake
Fluid Level Sensor/Switch > Component Information > Locations > Page 11564
Brake Fluid Level Sensor/Switch: Diagrams
Brake Fluid Level Switch
Brake Fluid Level Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control > Brake
Fluid Level Sensor/Switch > Component Information > Locations > Page 11565
Brake Fluid Level Sensor/Switch: Service and Repair
Master Cylinder Fluid Level Sensor Replacement
Removal Procedure
1. Remove the underhood electrical center. 2. Disconnect the brake fluid level sensor electrical
connector.
3. While simultaneously depressing the retaining tabs on the opposite side of the sensor electrical
connection, carefully pull the sensor from the
master cylinder reservoir.
4. Remove the low brake fluid level sensor.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control > Brake
Fluid Level Sensor/Switch > Component Information > Locations > Page 11566
1. While noting the proper orientation, install the brake fluid level sensor to the master cylinder. 2.
Press the brake fluid level sensor firmly into the master cylinder reservoir, ensuring that the
retaining tabs are fully engaged.
3. Connect the brake fluid level sensor electrical connector. 4. Install the underhood electrical
center.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Lateral Accelerometer > Component Information > Locations
Lateral Accelerometer: Locations
Center of the Floor
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Lateral Accelerometer > Component Information > Locations > Page 11570
Lateral Accelerometer: Diagrams
Yaw Rate and Lateral Acceleration Sensor
Yaw Rate and Lateral Acceleration Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Parking Brake Warning Switch > Component Information > Locations
Parking Brake Warning Switch: Locations
Park Brake Assembly
1 - Park Brake Switch 2 - Park Brake Handle 3 - Floor Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Parking Brake Warning Switch > Component Information > Locations > Page 11574
Parking Brake Warning Switch: Diagrams
Park Brake Switch
Park Brake Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Parking Brake Warning Switch > Component Information > Locations > Page 11575
Parking Brake Warning Switch: Service and Repair
Park Brake Warning Lamp Switch Replacement
Removal Procedure
1. Disable the supplemental inflatable restraint (SIR) system. 2. Remove the front floor console. 3.
Disconnect the warning lamp switch electrical connector (2). 4. Remove the warning lamp switch
mounting screw (1). 5. Remove the switch from the park brake lever assembly.
Installation Procedure
1. Align the park brake warning lamp switch locating tab to the locating hole on the park brake lever
assembly. 2. Install the switch to the park brake lever.
Notice: Refer to Fastener Notice .
3. Install the park brake warning lamp switch mounting screw (1).
Tighten the screw to 4 N.m (35 lb in).
4. Connect the park brake warning lamp switch electrical connector (2). 5. Install the front floor
console. 6. Enable the SIR system. 7. Verify correct park brake warning lamp operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Steering Angle Sensor, Traction Control > Component Information > Service and Repair
Steering Angle Sensor: Service and Repair
Steering Angle Sensor Centering
The steering angle sensor does not require centering often. Centering of the steering angle sensor
might be required after certain service procedures are performed. Some of these procedures are
as follows:
* Steering gear replacement
* Steering column replacement
* Steering angle sensor replacement
* Intermediate shaft replacement
* Antilock brake system (ABS) controller replacement
* Collision or other physical damage
The steering angle sensor centering procedure can be preformed with a scan tool in the automated
center procedure by the following:
1. Using the steering wheel, align the front wheels forward. 2. Set the transmission in the PARK
position. 3. Install the scan tool to the data link connector (DLC). 4. Turn the ignition switch ON,
with the engine OFF. 5. Select Chassis/EBCM control system vehicle stability enhancement
system (VSES), special function test, and Steering Pos. Sensor Calibration. 6. Follow the scan tool
directions to complete the automated centering procedure this should include turning the steering
wheel left 5 degrees and
right 5 degrees and then straight forward.
7. Clear any DTCs that may be set. Perform the Diagnostic System Check to verify no current
DTCs. 8. Centering of the steering angle sensor is complete.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Traction Control Switch > Component Information > Diagrams
Traction Control Switch: Diagrams
Traction Control Switch
Traction Control Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Traction Control Switch > Component Information > Diagrams > Page 11582
Traction Control Switch: Service and Repair
Traction Control Switch Replacement
Removal Procedure
1. Remove the instrument panel (I/P) trim bezel.
2. Carefully release the retaining tabs and remove the traction control switch from the trim bezel.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Traction Control Switch > Component Information > Diagrams > Page 11583
1. Install the traction control switch to the trim bezel. Ensure that the retaining tabs are fully
engaged.
2. Install the instrument panel (I/P) trim bezel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Wheel Speed Sensor > Component Information > Locations
Wheel Speed Sensor: Locations
Rear ABS Sensors
1 - Rear Cradle 2 - Wheel Speed Sensor (WSS) LR 3 - Wheel Speed Sensor (WSS) RR
LF Suspension
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Wheel Speed Sensor > Component Information > Locations > Page 11587
1 - C104 Left Shown, C105 Right Similar 2 - Wheel Speed Sensor (WSS) - LF, RF Similar
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Wheel Speed Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - LF
Wheel Speed Sensor - LF
Reverse Lockout Solenoid
Wheel Speed Sensor - LF
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Wheel Speed Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF > Page 11590
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - LR
Wheel Speed Sensor - LR
Wheel Speed Sensor - LR
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Wheel Speed Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF > Page 11591
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - RF
Wheel Speed Sensor - RF
Reverse Lockout Solenoid
Wheel Speed Sensor - RF
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Wheel Speed Sensor > Component Information > Diagrams > Wheel Speed Sensor - LF > Page 11592
Wheel Speed Sensor: Diagrams Wheel Speed Sensor - RR
Wheel Speed Sensor - RR
Wheel Speed Sensor - RR
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Wheel Speed Sensor > Component Information > Service and Repair > Front Wheel Speed Sensor Replacement
Wheel Speed Sensor: Service and Repair Front Wheel Speed Sensor Replacement
Front Wheel Speed Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control >
Wheel Speed Sensor > Component Information > Service and Repair > Front Wheel Speed Sensor Replacement > Page
11595
Wheel Speed Sensor: Service and Repair Rear Wheel Speed Sensor Replacement
Rear Wheel Speed Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control > Yaw
Rate Sensor > Component Information > Locations
Yaw Rate Sensor: Locations
Center of the Floor
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control > Yaw
Rate Sensor > Component Information > Locations > Page 11599
Yaw Rate Sensor: Diagrams
Yaw Rate and Lateral Acceleration Sensor
Yaw Rate and Lateral Acceleration Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Brakes and Traction Control > Sensors and Switches - Brakes and Traction Control > Yaw
Rate Sensor > Component Information > Locations > Page 11600
Yaw Rate Sensor: Service and Repair
Yaw Rate Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Sensors and Switches - Starting and Charging > Battery Current
Sensor > Component Information > Diagrams
Battery Current Sensor: Diagrams
Engine Electrical Connector End Views
Battery Current Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Sensors and Switches - Starting and Charging > Battery Current
Sensor > Component Information > Diagrams > Page 11606
Battery Current Sensor: Service and Repair
Battery Current Sensor Replacement
Removal Procedure
1. Remove the negative battery cable. 2. Mark the location of the battery current sensor on the
battery cable with tape for reference during installation. 3. Remove the tape securing the battery
current sensor to the negative battery cable. 4. Mark the location of the negative battery cable clips
and remove the clip from the cable. 5. Squeeze the negative battery cable branches together.
Important: Note the orientation of the battery current sensor prior to removal.
6. Slide the battery current sensor (1) off of the negative battery cable.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Sensors and Switches - Starting and Charging > Battery Current
Sensor > Component Information > Diagrams > Page 11607
1. Squeeze the negative battery cable branches together.
Important: Ensure the battery current sensor is installed in the correct direction and location on the
negative battery cable.
2. Slide the NEW battery current sensor (1) up onto the negative battery cable to the location
previously marked during removal. 3. Wrap electrical tape around the battery current sensor leg in
order to secure the sensor to the negative battery cable. 4. Install the negative battery cable clip to
the cable to the locations previously marked during removal. 5. Install the negative battery cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Sensors and Switches - Starting and Charging > Ignition Switch >
Ignition Switch Lock Cylinder > Component Information > Technical Service Bulletins > Customer Interest: > 09-02-35-005C
> Feb > 11 > Ignition - Key Difficult To Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: Customer Interest Ignition - Key Difficult To Remove, Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Sensors and Switches - Starting and Charging > Ignition Switch >
Ignition Switch Lock Cylinder > Component Information > Technical Service Bulletins > All Technical Service Bulletins: >
09-02-35-005C > Feb > 11 > Ignition - Key Difficult To Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: All Technical Service Bulletins Ignition - Key Difficult To Remove,
Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Sensors and Switches - Starting and Charging > Ignition Switch >
Ignition Switch Lock Cylinder > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Ignition Switch Lock Cylinder: > 07-08-44-010B > May > 09 > Navigation System - Display Locks Up/Error Messages
Navigation Module: All Technical Service Bulletins Navigation System - Display Locks Up/Error
Messages
TECHNICAL
Bulletin No.: 07-08-44-010B
Date: May 06, 2009
Subject: Navigation Radio Display Locks Up or Displays Error Messages (Update Navigation
Software)
Models:
2006-2007 Buick Lucerne 2007 Chevrolet Equinox 2007 GMC Acadia 2007 Pontiac Torrent 2007
Saturn OUTLOOK Equipped With Navigation Radio - RPO U3U (Equinox, Lucerne, Torrent) or
U3R or UZR (Acadia, OUTLOOK)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being canceled.
Please discard Corporate Bulletin Number 07-08-44-010A (Section 08 - Body & Accessories).
..............................................................................................................................................................
..................................................................................
For vehicles exhibiting the condition stated above, please refer to Corporate Bulletin Number
08-08-44-013C for the latest repair information.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Sensors and Switches - Starting and Charging > Ignition Switch >
Ignition Switch Lock Cylinder > Component Information > Technical Service Bulletins > Page 11632
Ignition Switch Lock Cylinder: Service and Repair
Key and Lock Cylinder Coding
Use Instruction Sheet Supplied
For the lock cylinder coding procedure, refer to the instruction sheet supplied in the lock cylinder
kit.
For key cutting information, refer to the instructions provided from the manufacturer of the key
cutting equipment used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Sensors and Switches - Starting and Charging > Neutral Safety
Switch > Component Information > Locations
Neutral Safety Switch: Locations
Engine Electrical Component Views
Front of the Engine
1 - Exhaust Gas Recirculation (EGR) Valve 2 - Throttle Actuator Control (TAC) Module 3 Evaporative Emissions (EVAP) Canister Purge Solenoid 4 - Park/Neutral Position Switch 5 - Starter
6 - Starter Solenoid 7 - Engine Oil Pressure (EOP) Switch 8 - Knock Sensor (KS) 2 9 - A/C
Compressor Clutch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Jump Starting > System Information > Service and
Repair
Jump Starting: Service and Repair
Jump Starting in Case of Emergency
Caution: Batteries produce explosive gases. Batteries contain corrosive acid. Batteries supply
levels of electrical current high enough to cause burns. Therefore, in order to reduce the risk of
personal injury while working near a battery, observe the following guidelines:
* Always shield your eyes.
* Avoid leaning over the battery whenever possible.
* Do not expose the battery to open flames or sparks.
* Do not allow battery acid to contact the eyes or the skin.
- Flush any contacted areas with water immediately and thoroughly.
- Get medical help.
Notice: This vehicle has a 12 volt, negative ground electrical system. Make sure the vehicle or
equipment being used to jump start the engine is also 12 volt, negative ground. Use of any other
type of system will damage the vehicle's electrical components.
1. Position the vehicle with the booster battery so that the jumper cables will reach.
* Do not let the 2 vehicles touch.
* Make sure that the jumper cables do not have loose ends, or missing insulation.
2. Place an automatic transmission in PARK. If equipped with a manual transmission, place in
NEUTRAL and block the wheels. 3. Turn OFF all electrical loads on both vehicles that are not
needed. 4. Turn OFF the ignition on both vehicles.
5. Connect the red positive (+) cable to the battery positive (+) terminal (2) of the vehicle with the
discharged battery.
Use a remote positive (+) terminal if the vehicle has one.
6. Connect the red positive (+) cable to the positive (+) terminal (1) of the booster battery.
Use a remote positive (+) terminal if the vehicle has one.
7. Connect the black negative (-) cable to the negative (-) terminal (3) of the booster battery.
Caution: Do not connect a jumper cable directly to the negative terminal of a discharged battery to
prevent sparking and possible explosion of battery gases.
8. The final connection is made to a heavy, unpainted metal engine part (4) of the vehicle with the
discharged battery.
This final attachment must be at least 46 cm (18 in) away from the dead battery.
9. Start the engine of the vehicle that is providing the boost.
Notice: Never operate the starter motor more than 15 seconds at a time without pausing in order to
allow it to cool for at least 2 minutes. Overheating will damage the starter motor.
10. Crank the engine of the vehicle with the discharged battery. 11. The black negative (-) cable
must be first disconnected from the vehicle that was boosted (4). 12. Disconnect the black negative
(-) cable from the negative (-) terminal (3) of the booster battery.
Notice: Do not let the cable end touch any metal. Damage to the battery and other components
may result.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Jump Starting > System Information > Service and
Repair > Page 11640
13. Disconnect the red positive (+) cable from the positive (+) terminal (1) of the booster battery.
14. Disconnect the red positive (+) cable from the remote positive (+) terminal (2) of the vehicle
with the discharged battery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Cable > Negative, Battery Cable > System
Information > Service and Repair
Negative: Service and Repair
Battery Negative Cable Replacement
Removal Procedure
Important:
* Always use replacement cables that are of the same type, diameter and length of the cables that
you are replacing.
* Always route the replacement cable the same way as the original cable.
1. Remove the battery box. 2. Disconnect the positive and negative battery cable clip (3) from the
battery tray support bracket.
3. Disconnect the negative battery cable electrical connector (7) from the body wiring harness
electrical connector (2). 4. Disconnect the body wiring harness electrical connector (4) from the
battery current sensor (5).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Cable > Negative, Battery Cable > System
Information > Service and Repair > Page 11645
5. Remove the negative battery cable ground terminal nut from the wheelhouse stud. 6. Remove
the negative battery cable ground terminal from the wheelhouse stud.
7. Remove the negative battery cable ground terminal nut (2) from the transaxle stud. 8. Remove
the negative battery cable ground terminal (1) from the transaxle stud. 9. Cut the tape and remove
the negative battery cable from the wiring loom.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Cable > Negative, Battery Cable > System
Information > Service and Repair > Page 11646
1. Install the negative battery cable to the wiring loom and re-tape the loom. 2. Install the negative
battery cable ground terminal (1) to the transaxle stud.
Notice: Refer to Fastener Notice.
3. Install the negative battery cable ground terminal nut (2) to the transaxle stud.
Tighten the nut to 45 N.m (33 lb ft).
4. Install the negative battery cable ground terminal to the wheelhouse stud. 5. Install the negative
battery cable ground terminal nut to the wheelhouse stud.
Tighten the nut to 12 N.m (106 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Cable > Negative, Battery Cable > System
Information > Service and Repair > Page 11647
6. Connect the body wiring harness electrical connector (4) to the battery current sensor (5). 7.
Connect the negative battery cable electrical connector (7) to the body wiring harness electrical
connector (2).
8. Connect the positive and negative battery cable clip (3) to the battery tray support bracket. 9.
Install the battery box.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Cable > Positive, Battery Cable > System
Information > Service and Repair
Positive: Service and Repair
Battery Positive Cable Replacement
Removal Procedure
Important:
* Always use replacement cables that are of the same type, diameter and length of the cables that
you are replacing.
* Always route the replacement cable the same way as the original cable.
1. Remove the battery. 2. Remove the underhood bussed electrical center (UBEC) cover.
3. Remove the positive battery cable terminal nut (1) from the UBEC stud. 4. Remove the positive
battery cable terminal (2) from the UBEC stud.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Cable > Positive, Battery Cable > System
Information > Service and Repair > Page 11651
5. Remove the battery box. 6. Disconnect the positive and negative battery cable clip (3) from the
battery tray support bracket.
7. Remove the positive battery cable terminal to starter solenoid nut (6). 8. Remove the positive
battery cable from the engine wiring harness clip (3). 9. Remove the positive battery cable (4) lead
from the starter solenoid.
10. Cut the tape and remove the positive battery cable from the wire loom.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Cable > Positive, Battery Cable > System
Information > Service and Repair > Page 11652
1. Install the positive battery cable to the wire loom and re-tape the loom. 2. Install the positive
battery cable (4) lead to the starter solenoid. 3. Install the positive battery cable to the engine wiring
harness clip (3).
Notice: Refer to Fastener Notice.
4. Install the positive battery cable terminal to starter solenoid nut (6).
Tighten the nut to 10 N.m (89 lb in).
5. Connect the positive and negative battery cable clip (3) to the battery tray support bracket. 6.
Install the battery box.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Cable > Positive, Battery Cable > System
Information > Service and Repair > Page 11653
7. Install the positive battery cable terminal (2) to the UBEC stud. 8. Install the positive battery
cable terminal nut (1) to the UBEC stud.
Tighten the nut to 15 N.m (11 lb ft).
9. Install the UBEC cover.
10. Install the battery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Current Sensor > Component Information >
Diagrams
Battery Current Sensor: Diagrams
Engine Electrical Connector End Views
Battery Current Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Current Sensor > Component Information >
Diagrams > Page 11657
Battery Current Sensor: Service and Repair
Battery Current Sensor Replacement
Removal Procedure
1. Remove the negative battery cable. 2. Mark the location of the battery current sensor on the
battery cable with tape for reference during installation. 3. Remove the tape securing the battery
current sensor to the negative battery cable. 4. Mark the location of the negative battery cable clips
and remove the clip from the cable. 5. Squeeze the negative battery cable branches together.
Important: Note the orientation of the battery current sensor prior to removal.
6. Slide the battery current sensor (1) off of the negative battery cable.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Current Sensor > Component Information >
Diagrams > Page 11658
1. Squeeze the negative battery cable branches together.
Important: Ensure the battery current sensor is installed in the correct direction and location on the
negative battery cable.
2. Slide the NEW battery current sensor (1) up onto the negative battery cable to the location
previously marked during removal. 3. Wrap electrical tape around the battery current sensor leg in
order to secure the sensor to the negative battery cable. 4. Install the negative battery cable clip to
the cable to the locations previously marked during removal. 5. Install the negative battery cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Tray > Component Information > Service and
Repair > Battery Tray Replacement
Battery Tray: Service and Repair Battery Tray Replacement
Battery Tray Replacement
Removal Procedure
1. Remove the battery box. 2. Remove the battery tray support bracket bolt at the multiuse relay
and fuse bracket.
3. Remove the battery tray support bracket bolts. 4. Remove the battery tray support bracket.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Tray > Component Information > Service and
Repair > Battery Tray Replacement > Page 11663
1. Position the battery tray support bracket.
Notice: Refer to Fastener Notice.
2. Install the battery tray support bracket bolts.
Tighten the bolts to 25 N.m (18 lb ft).
3. Install the battery tray support bracket bolt at the multiuse relay and fuse bracket.
Tighten the bolt to 25 N.m (18 lb ft).
4. Install the battery box.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Tray > Component Information > Service and
Repair > Battery Tray Replacement > Page 11664
Battery Tray: Service and Repair Battery Box Replacement
Battery Box Replacement
Removal Procedure
1. Remove the battery. 2. Remove the air conditioning (A/C) evaporator line clamp nut at the
battery box. 3. Remove the A/C evaporator outlet line clamp from the battery tray stud.
4. Remove the coolant surge tank bolts from the front wheelhouse panel. 5. Lift the coolant surge
tank up and reposition the tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Tray > Component Information > Service and
Repair > Battery Tray Replacement > Page 11665
6. Remove the battery tray bolts. 7. Lift up the battery tray slightly in order to disconnect the battery
cooling air inlet duct.
8. Disconnect the battery cooling air inlet duct from the battery tray. 9. Remove the battery tray
from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Tray > Component Information > Service and
Repair > Battery Tray Replacement > Page 11666
1. Position the battery tray to the vehicle.
Important: Fully insert the duct into the hole on the battery tray past the second molded in ridge,
stopping at the flange.
2. Connect the battery cooling air inlet duct to the battery tray.
3. Set the battery tray completely in place.
Notice: Refer to Fastener Notice.
4. Install the battery tray bolts.
Tighten the bolts to 15 N.m (11 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Battery > Battery Tray > Component Information > Service and
Repair > Battery Tray Replacement > Page 11667
5. Position and install the coolant surge tank to the front wheelhouse panel. 6. Install the coolant
surge tank bolts.
Tighten the bolts to 6 N.m (53 lb in).
7. Install the A/C evaporator outlet line clamp to the battery tray stud. 8. Install the A/C evaporator
line clamp nut at the battery tray.
Tighten the nut to 15 N.m (11 lb ft).
9. Install the battery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Charging System > Alternator > Component Information >
Specifications
Alternator: Specifications
Generator Usage
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Charging System > Alternator > Component Information >
Specifications > Page 11672
Alternator: Diagrams
Engine Electrical Connector End Views
Generator
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Charging System > Alternator > Component Information >
Specifications > Page 11673
Alternator: Service and Repair
Generator Replacement
Removal Procedure
1. Remove the battery ground (negative) cable from the battery.
2. Remove the generator B+ terminal nut. 3. Remove the generator B+ lead. 4. Remove the
generator electrical connector. 5. Remove the drive belt from the generator.
6. Remove the generator bolts. 7. Remove the generator from the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Charging System > Alternator > Component Information >
Specifications > Page 11674
Installation Procedure
1. Install the generator to the generator bracket.
Notice: Refer to Fastener Notice.
2. Install the generator bolts.
Tighten the generator bolts to 50 N.m (37 lb ft).
3. Install the drive belt.
4. Install the generator electrical connector. 5. Install the generator B+ lead. 6. Install the generator
B+ terminal nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Charging System > Alternator > Component Information >
Specifications > Page 11675
Tighten the generator B+ terminal nut to 20 N.m (15 lb ft).
7. Install the battery ground (negative) cable to the battery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Ignition Lock > Ignition Lock Solenoid >
Component Information > Diagrams
Ignition Lock Solenoid: Diagrams
Secondary/Configurable Control Connector End Views
Key Cylinder Lock Solenoid
A/T Shift Lock Control Solenoid
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Ignition Lock > Ignition Lock Solenoid >
Component Information > Diagrams > Page 11681
Ignition Lock Solenoid: Description and Operation
ELECTRONIC PARK LOCK DESCRIPTION AND OPERATION
If the vehicle is equipped with automatic transmission and a floor mounted console gear shift, it has
an electronic park lock system (EPL). The EPL system purpose is to prevent the ignition key from
being turned to the OFF position when the transmission is in any position other than PARK and the
vehicle may still be moving. The EPL system consists of an ignition lock cylinder solenoid, and a
park position switch that is located in the A/T shift lock control switch. The ignition lock cylinder
solenoid contains a pin that is spring loaded to mechanically prevent the ignition key cylinder from
being turned to the lock position when the vehicle transmission is not in the PARK position. If
vehicle power is lost, and/or the transmission is not in the Park position the operator will not be able
to turn the ignition key to the lock position and will not be able to remove the ignition key from the
column.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Ignition Switch > Ignition Switch Lock Cylinder >
Component Information > Technical Service Bulletins > Customer Interest for Ignition Switch Lock Cylinder: >
09-02-35-005C > Feb > 11 > Ignition - Key Difficult To Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: Customer Interest Ignition - Key Difficult To Remove, Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Ignition Switch > Ignition Switch Lock Cylinder >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Ignition Switch Lock Cylinder: >
09-02-35-005C > Feb > 11 > Ignition - Key Difficult To Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: All Technical Service Bulletins Ignition - Key Difficult To Remove,
Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Ignition Switch > Ignition Switch Lock Cylinder >
Component Information > Technical Service Bulletins > Page 11696
Ignition Switch Lock Cylinder: Service and Repair
Key and Lock Cylinder Coding
Use Instruction Sheet Supplied
For the lock cylinder coding procedure, refer to the instruction sheet supplied in the lock cylinder
kit.
For key cutting information, refer to the instructions provided from the manufacturer of the key
cutting equipment used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Key > Component Information > Technical
Service Bulletins > Locks - Key Code Security Rules and Information
Key: Technical Service Bulletins Locks - Key Code Security Rules and Information
INFORMATION
Bulletin No.: 10-00-89-010
Date: May 27, 2010
Subject: Key Code Security Rules and Information on GM KeyCode Look-Up Application (Canada
Only)
Models:
2011 and Prior GM Passenger Cars and Trucks 2010 and Prior HUMMER H2, H3 2009 and Prior
Saturn and Saab 2002 and Prior Isuzu
Attention:
This bulletin has been created to address potential issues and questions regarding KeyCode
security. This bulletin should be read by all parties involved in KeyCode activity, including dealer
operator, partner security coordinator, sales, service and parts departments. A copy of this bulletin
should be printed and maintained in the parts department for use as a reference.
Important U.S. dealers should refer to Corporate Bulletin Number 10-00-89-009.
Where Are Key Codes Located?
General Motors provides access to KeyCodes through three sources when a vehicle is delivered to
a dealer. Vehicle KeyCodes are located on the original vehicle invoice to the dealership. There is a
small white bar coded tag sent with most new vehicles that also has the key code printed on it.
Dealerships should make a practice of comparing the tag's keycode numbers to the keycode listed
on the invoice. Any discrepancy should be reported immediately to the GM of Canada Key Code
Inquiry Desk. Remember to remove the key tag prior to showing vehicles to potential customers.
The third source for Key codes is through the GM KeyCode Look-Up feature within the
OEConnection D2DLink application. KeyCode Look-Up currently goes back 17 previous model
years from the current model year.
When a vehicle is received by the dealership, care should be taken to safeguard the original
vehicle invoice and KeyCode tag provided with the vehicle. Potential customers should not have
access to the invoice or this KeyCode tag prior to the sale being completed. After a sale has been
completed, the KeyCode information belongs to the customer and General Motors.
Tip
Only the original invoice contains key code information, a re-printed invoice does not.
GM KeyCode Look-Up Application for GM of Canada Dealers
All dealers should review the General Motors of Canada KeyCode Look-Up Policies and
Procedures (Service Policy & Procedures Manual Section 3.1.6 "Replacement of VIN plates &
keys").
Please note that the KeyCode Access site is restricted. Only authorized users should be using this
application. Please see your Parts Manager for site authorized users. KeyCode Look-Up currently
goes back 17 years from current model year.
Important notes about security:
- Users may not access the system from multiple computers simultaneously.
- Users may only request one KeyCode at a time.
- KeyCode information will only be available on the screen for 2 minutes.
- Each user is personally responsible for maintaining and protecting their password.
- Never share your password with others.
- User Id's are suspended after 6 consecutive failed attempts.
- User Id's are disabled if not used for 90 days.
- Processes must be in place for regular dealership reviews.
- The Parts Manager (or assigned management) must have processes in place for employee
termination or life change events. Upon termination individuals access must be turned off
immediately and access should be re-evaluated upon any position changes within the dealership.
- If you think your password or ID security has been breached, contact Dealer Systems Support at
1-800-265-0573.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Key > Component Information > Technical
Service Bulletins > Locks - Key Code Security Rules and Information > Page 11701
Each user will be required to accept the following agreement each time the KeyCode application is
used.
Key Code User Agreement
- Key codes are proprietary information belonging to General Motors Corporation and to the vehicle
owner.
- Unauthorized access to, or use of, key code information is unlawful and may subject the user to
criminal and civil penalties.
- This information should be treated as strictly confidential and should not be disclosed to anyone
unless authorized.
I will ensure that the following information is obtained prior to releasing any Key Code information:
1. Government issued picture ID (Drivers License) 2. Registration or other proof of ownership.
Registration should have normal markings from the Province that issued the registration and
possibly the
receipt for payment recorded as well.
Important
- GM takes this agreement seriously. Each user must be certain of vehicle ownership before giving
out key codes.
- When the ownership of the vehicle is in doubt, dealership personnel should not provide the
information.
Key code requests should never be received via a fax or the internet and key codes should never
be provided to anyone in this manner. A face to face contact with the owner of the vehicle is the
expected manner that dealers will use to release a key code or as otherwise stipulated in this
bulletin or other materials.
- Key codes should NEVER be sent via a fax or the internet.
- Each Dealership should create a permanent file to document all KeyCode Look Up transactions.
Requests should be filed by VIN and in each folder retain copies of the following:
- Government issued picture ID (Drivers License)
- Registration or other proof of ownership.
- Copy of the paid customer receipt which has the name of the employee who cut and sold the key
to the customer.
- Do not put yourself or your Dealership in the position of needing to "explain" a KeyCode Look Up
to either GM or law enforcement officials.
- Dealership Management has the ability to review all KeyCode Look-Up transactions.
- Dealership KeyCode documentation must be retained for two years.
Frequently Asked Questions (FAQs) for GM of Canada Dealers
How do I request a KeyCode for customer owned vehicle that is not registered?
Scrapped, salvaged or stored vehicles that do not have a current registration should still have the
ownership verified by requesting the vehicle title, current insurance policy and / or current lien
holder information from the customers financing source. If you cannot determine if the customer is
the owner of the vehicle, do not provide the key code information. In these cases, a short
description of the vehicle (scrapped, salvaged, etc.) and the dealership location should be kept on
file. Any clarifying explanation should be entered into the comments field.
How do I document a KeyCode request for a vehicle that is being repossessed?
The repossessor must document ownership of the vehicle by providing a court ordered
repossession order and lien-holder documents prior to providing key code information. Copies of
the repossessors Drivers License and a business card should be retained by the dealership for
documentation.
What do I do if the registration information is locked in the vehicle?
Every effort should be made to obtain complete information for each request. Each Dealership will
have to decide on a case by case basis if enough information is available to verify the customer's
ownership of the vehicle. Other forms of documentation include vehicle title, insurance policy, and
or current lien information from the customers financing source. Dealership Management must be
involved in any request without complete information. If you cannot determine if the customer is the
owner of the vehicle, do not provide the key code information.
Can I get a print out of the information on the screen?
It is important to note that the Key Code Look Up Search Results contain sensitive and/or
proprietary information. For this reason GM recommends against printing it. If the Search Results
must be printed, store and/or dispose of the printed copy properly to minimize the risk of improper
or illegal use.
Who in the dealership has access to the KeyCode application?
Dealership Parts Manager (or assigned management) will determine, and control, who is
authorized to access the KeyCode Look Up application. However, we anticipate that dealership
parts and service management will be the primary users of the application. The KeyCode Look Up
application automatically tracks each user activity session. Information tracked by the system
includes: User name, User ID, all other entered data and the date/time of access.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Key > Component Information > Technical
Service Bulletins > Locks - Key Code Security Rules and Information > Page 11702
What if I input the VIN incorrectly?
If an incorrect VIN is entered into the system (meaning that the system does not recognize the VIN
or that the VIN has been entered incorrectly) the system will return an error message.
If I am an authorized user for the KeyCode application, can I access the application from home?
Yes.
What if I suspect key code misuse?
Your dealership should communicate the proper procedures for requesting key codes. Any
suspicious activity either within the dealership or externally should be reported to Dealer Systems
Support at 1-800-265-0573 or GM of Canada Key Code Inquiry Desk at 1-905-644-4892.
Whose key codes can I access through the system?
At this time the following Canadian vehicle codes are available through the system: Chevrolet,
Cadillac, Buick, Pontiac, GMC, HUMMER (H2 and H3 only), Oldsmobile, Saturn, Saab and Isuzu
(up to 2002 model year) for a maximum of 17 model years.
What should I do if I enter a valid VIN and the system does not produce any key code information?
Occasionally, the KeyCode Look Up application may not produce a key code for a valid VIN. This
may be the result of new vehicle information not yet available. In addition, older vehicle information
may have been sent to an archive status. If you do not receive a key code returned for valid VIN,
you should contact GM of Canada Key Code Inquiry Desk at 1-905-644-4892.
How do I access KeyCodes if the KeyCode Look-up system is down?
If the KeyCode Look-up system is temporarily unavailable, you can contact the original selling
dealer who may have it on file or contact GM of Canada Key Code Inquiry Desk at
1-905-644-4892. If the customer is dealing with an emergency lock-out situation, you need to have
the customer contact Roadside assistance, OnStar if subscribed, or 911.
What should I do if the KeyCode from the look-up system does not work on the vehicle?
On occasion a dealer may encounter a KeyCode that will not work on the vehicle in question. In
cases where the KeyCode won't work you will need to verify with the manufacturer of the cutting
equipment that the key has been cut correctly. If the key has been cut correctly you may be able to
verify the proper KeyCode was given through the original selling dealer. When unable to verify the
KeyCode through the original selling dealer contact GM of Canada Key Code Inquiry Desk at
1-905-644-4892. If the key has been cut correctly and the code given does not work, the lock
cylinder may have been changed. In these situations following the proper SI document for recoding
a key or replacing the lock cylinder may be necessary.
How long do I have to keep KeyCode Records?
Dealership KeyCode documentation must be retained for two years.
Can I get a KeyCode changed in the Look-Up system?
Yes, KeyCodes can be changed in the Look-Up system if a lock cylinder has been changed.
Contact GM of Canada Key Code Inquiry Desk at 1-905-644-4892.
What information do I need before I can provide a driver of a company fleet vehicle Keys or
KeyCode information?
The dealership should have a copy of the individual's driver's license, proof of employment and
registration. If there is any question as to the customer's employment by the fleet company, the
dealer should attempt to contact the fleet company for verification. If there is not enough
information to determine ownership and employment, this information should not be provided.
How do I document a request from an Independent Repair facility for a KeyCode or Key?
The independent must provide a copy of their driver's license, proof of employment and signed
copy of the repair order for that repair facility. The repair order must include customer's name,
address, VIN, city, province and license plate number. Copies of this information must be included
in your dealer KeyCode file.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Key > Component Information > Technical
Service Bulletins > Locks - Key Code Security Rules and Information > Page 11703
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 >
Keyless Systems - Poor Range/TPM Message Displayed
Keyless Start Transmitter: Customer Interest Keyless Systems - Poor Range/TPM Message
Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 >
Keyless Systems - Poor Range/TPM Message Displayed > Page 11713
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 >
Keyless Systems - Poor Range/TPM Message Displayed > Page 11714
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter Diagnostic Tip
Keyless Start Transmitter: All Technical Service Bulletins Keyless System - Remote Start
Transmitter Diagnostic Tip
INFORMATION
Bulletin No.: 09-08-52-004A
Date: January 08, 2010
Subject: Diagnostic Tips/Recommendations on GM Accessory 2-Way Remote Start Transmitter
When Transmitter Battery is Weak or Dead
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac DTS, Escalade, Escalade
ESV, Escalade EXT 2007-2009 Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Cobalt, HHR,
Impala, Silverado, Tahoe 2009-2010 Chevrolet Malibu, Traverse 2007-2010 GMC Acadia, Sierra,
Yukon 2007-2009 Pontiac G5, G6, Solstice, Torrent 2008-2009 Pontiac G8 2007-2010 Saturn
AURA, OUTLOOK, SKY, VUE 2007-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models and model years. Please discard
Corporate Bulletin Number 09-08-52-004 (Section 08 - Body and Accessories).
Follow these procedures if a customer comments that their GM Accessory 2-way transmitter
stopped communicating with the vehicle.
About GM Accessory 2-Way Remote Start
The GM Accessory 2-way transmitter has the ability to operate a second vehicle equipped with a
2-way advanced remote start system, but often the 2-way transmitter may only be coded to one
vehicle. If the customer presses the left side button twice within one second, the 2-way transmitter
will enter second vehicle mode and will not control the original vehicle until a subsequent double
press of the left side button places the transmitter back in first vehicle mode. Each vehicle mode of
the 2-way transmitter should be thought of as an individual transmitter with its own unique code.
Test the Transmitter Battery
Note
This test should be performed prior to releasing the vehicle or transmitter to the customer.
All transmitter batteries should be tested immediately after installation of a 2-way remote start kit or
replacement of a transmitter battery using the following procedure.
1. Press the unlock button on the transmitter eight times consecutively. 2. After the eighth press of
the unlock button, observe the battery gauge located in the upper right corner of the LCD display.
The gauge should read
full (three bars inside the battery icon).
If after having a new battery installed, the battery goes dead within five months, the transmitter
could have high sleep current, causing the battery to go dead. Replace the transmitter.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition
exhibited is resolved without completing every step, the remaining steps do not need to be
performed.
Determine if Transmitter is in Second Vehicle Mode
1. Press and release any of the face buttons on the 2-way transmitter and observe the display on
power-up. 2. If the 2-way transmitter is in second vehicle mode, the second vehicle icon will be
displayed on the left side of the transmitter display. Is the 2-way
transmitter in second vehicle mode?
If Yes, the 2-way transmitter is working properly.
- Press and release the left side button twice within one second. The 2-way transmitter should exit
second vehicle mode.
- Press and release the lock button. Press and release the unlock button.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter Diagnostic Tip > Page 11720
- Confirm that the vehicle responds with the appropriate lock and unlock function.
- If Yes , the 2-way transmitter was in mode B.
- Press and release the left side button twice within one second. The 2-way transmitter should
enter second vehicle mode.
- Use the "next available slot" method in the scan tool to program the 2-way transmitter to the
2-way RCDLR. Refer to Remote Control Door Lock Transmitter Programming in SI.
- Both vehicle modes of the 2-way transmitter should now be coded to the vehicle.
If No:
The 2-way transmitter is not exhibiting the failure mode addressed by this bulletin. Refer to normal
diagnostic procedures.
Parts Information
For part numbers, usage and availability of 2-way remote start, refer to the Accessory Parts
Catalog or Corporate Bulletin Number 09-00-89-025A.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start
Keyless Start Transmitter: All Technical Service Bulletins Keyless Start - 2-Way Advanced Remote
Start
INFORMATION
Bulletin No.: 09-00-89-025A
Date: October 26, 2009
Subject: GM Accessories: 2-Way Advanced Remote Start Systems Part Information
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac Escalade ESV, EXT
2008-2010 Cadillac DTS 2007-2009 Chevrolet Equinox, HHR 2007-2010 Chevrolet Avalanche,
Cobalt, Silverado, Tahoe 2008-2010 Chevrolet Impala, Malibu 2009-2010 Chevrolet Traverse
2007-2010 GMC Acadia, Sierra, Yukon 2008-2010 HUMMER H2 2007-2009 Pontiac Torrent
2007-2010 Pontiac G5, G6 2008-2010 Pontiac G8 2010 Pontiac Solstice 2007-2010 Saturn AURA,
OUTLOOK 2009-2010 Saturn VUE 2010 Saturn SKY
Attention:
This bulletin does not apply to GMODC dealers.
Supercede: This bulletin is being revised to add part numbers. Please discard Corporate Bulletin
Number 09-00-89-025 (Section 00 - General Information).
This bulletin is being published to provide information on locating service part numbers for GM
Accessory, 2-Way Advanced Remote Start Systems.
Dealers should consult the chart below and use the correct service part. Dealers should not use
entire kit for warranty or repair work.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 11725
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 11726
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 11727
Parts Information
Service parts common to all 2-Way Advanced Remote Start Systems
Transmitter Battery 12493150
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Start Transmitter: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 11732
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 11733
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter Diagnostic Tip
Keyless Start Transmitter: All Technical Service Bulletins Keyless System - Remote Start
Transmitter Diagnostic Tip
INFORMATION
Bulletin No.: 09-08-52-004A
Date: January 08, 2010
Subject: Diagnostic Tips/Recommendations on GM Accessory 2-Way Remote Start Transmitter
When Transmitter Battery is Weak or Dead
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac DTS, Escalade, Escalade
ESV, Escalade EXT 2007-2009 Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Cobalt, HHR,
Impala, Silverado, Tahoe 2009-2010 Chevrolet Malibu, Traverse 2007-2010 GMC Acadia, Sierra,
Yukon 2007-2009 Pontiac G5, G6, Solstice, Torrent 2008-2009 Pontiac G8 2007-2010 Saturn
AURA, OUTLOOK, SKY, VUE 2007-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models and model years. Please discard
Corporate Bulletin Number 09-08-52-004 (Section 08 - Body and Accessories).
Follow these procedures if a customer comments that their GM Accessory 2-way transmitter
stopped communicating with the vehicle.
About GM Accessory 2-Way Remote Start
The GM Accessory 2-way transmitter has the ability to operate a second vehicle equipped with a
2-way advanced remote start system, but often the 2-way transmitter may only be coded to one
vehicle. If the customer presses the left side button twice within one second, the 2-way transmitter
will enter second vehicle mode and will not control the original vehicle until a subsequent double
press of the left side button places the transmitter back in first vehicle mode. Each vehicle mode of
the 2-way transmitter should be thought of as an individual transmitter with its own unique code.
Test the Transmitter Battery
Note
This test should be performed prior to releasing the vehicle or transmitter to the customer.
All transmitter batteries should be tested immediately after installation of a 2-way remote start kit or
replacement of a transmitter battery using the following procedure.
1. Press the unlock button on the transmitter eight times consecutively. 2. After the eighth press of
the unlock button, observe the battery gauge located in the upper right corner of the LCD display.
The gauge should read
full (three bars inside the battery icon).
If after having a new battery installed, the battery goes dead within five months, the transmitter
could have high sleep current, causing the battery to go dead. Replace the transmitter.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition
exhibited is resolved without completing every step, the remaining steps do not need to be
performed.
Determine if Transmitter is in Second Vehicle Mode
1. Press and release any of the face buttons on the 2-way transmitter and observe the display on
power-up. 2. If the 2-way transmitter is in second vehicle mode, the second vehicle icon will be
displayed on the left side of the transmitter display. Is the 2-way
transmitter in second vehicle mode?
If Yes, the 2-way transmitter is working properly.
- Press and release the left side button twice within one second. The 2-way transmitter should exit
second vehicle mode.
- Press and release the lock button. Press and release the unlock button.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter Diagnostic Tip > Page 11739
- Confirm that the vehicle responds with the appropriate lock and unlock function.
- If Yes , the 2-way transmitter was in mode B.
- Press and release the left side button twice within one second. The 2-way transmitter should
enter second vehicle mode.
- Use the "next available slot" method in the scan tool to program the 2-way transmitter to the
2-way RCDLR. Refer to Remote Control Door Lock Transmitter Programming in SI.
- Both vehicle modes of the 2-way transmitter should now be coded to the vehicle.
If No:
The 2-way transmitter is not exhibiting the failure mode addressed by this bulletin. Refer to normal
diagnostic procedures.
Parts Information
For part numbers, usage and availability of 2-way remote start, refer to the Accessory Parts
Catalog or Corporate Bulletin Number 09-00-89-025A.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start
Keyless Start Transmitter: All Technical Service Bulletins Keyless Start - 2-Way Advanced Remote
Start
INFORMATION
Bulletin No.: 09-00-89-025A
Date: October 26, 2009
Subject: GM Accessories: 2-Way Advanced Remote Start Systems Part Information
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac Escalade ESV, EXT
2008-2010 Cadillac DTS 2007-2009 Chevrolet Equinox, HHR 2007-2010 Chevrolet Avalanche,
Cobalt, Silverado, Tahoe 2008-2010 Chevrolet Impala, Malibu 2009-2010 Chevrolet Traverse
2007-2010 GMC Acadia, Sierra, Yukon 2008-2010 HUMMER H2 2007-2009 Pontiac Torrent
2007-2010 Pontiac G5, G6 2008-2010 Pontiac G8 2010 Pontiac Solstice 2007-2010 Saturn AURA,
OUTLOOK 2009-2010 Saturn VUE 2010 Saturn SKY
Attention:
This bulletin does not apply to GMODC dealers.
Supercede: This bulletin is being revised to add part numbers. Please discard Corporate Bulletin
Number 09-00-89-025 (Section 00 - General Information).
This bulletin is being published to provide information on locating service part numbers for GM
Accessory, 2-Way Advanced Remote Start Systems.
Dealers should consult the chart below and use the correct service part. Dealers should not use
entire kit for warranty or repair work.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 11744
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 11745
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 11746
Parts Information
Service parts common to all 2-Way Advanced Remote Start Systems
Transmitter Battery 12493150
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Neutral Safety Switch > Component Information
> Locations
Neutral Safety Switch: Locations
Engine Electrical Component Views
Front of the Engine
1 - Exhaust Gas Recirculation (EGR) Valve 2 - Throttle Actuator Control (TAC) Module 3 Evaporative Emissions (EVAP) Canister Purge Solenoid 4 - Park/Neutral Position Switch 5 - Starter
6 - Starter Solenoid 7 - Engine Oil Pressure (EOP) Switch 8 - Knock Sensor (KS) 2 9 - A/C
Compressor Clutch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Starter Motor > Component Information >
Diagrams
Starter Motor: Diagrams
Engine Electrical Connector End Views
starter
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Starter Motor > Component Information >
Diagrams > Page 11753
Starter Motor: Service and Repair
Starter Motor Replacement
Removal Procedure
1. Disconnect the battery negative cable from the battery. 2. Raise and suitably support the vehicle.
Refer to Vehicle Lifting.
3. Remove the starter motor solenoid positive terminal nut and electrical wires. 4. Remove the
starter motor solenoid S terminal nut and electrical wire.
5. Remove the torque converter cover bolt (2). 6. Remove the torque converter cover (1).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Starter Motor > Component Information >
Diagrams > Page 11754
7. Remove the starter motor bolts (2, 3). 8. Remove the starter motor (1).
Installation Procedure
1. Install the starter motor (1).
Notice: Refer to Fastener Notice.
2. Install the starter motor bolts (2, 3).
Tighten the starter motor bolts to 43 N.m (32 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Starter Motor > Component Information >
Diagrams > Page 11755
3. Install the torque converter cover (1). 4. Install the torque converter cover bolt (2).
Tighten the bolt to 8 N.m (71 lb in).
5. Install the starter motor solenoid S terminal electrical wire and nut.
Tighten the solenoid S terminal nut to 3 N.m (27 lb in).
6. Install the starter motor solenoid positive terminal electrical wires and nut.
Tighten the solenoid positive terminal nut to 10 N.m (89 lb in).
7. Lower the vehicle. 8. Install the battery negative cable to the battery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Starting System > Starter Solenoid > Component Information >
Locations
Starter Solenoid: Locations
Engine Electrical Component Views
Front of the Engine
1 - Exhaust Gas Recirculation (EGR) Valve 2 - Throttle Actuator Control (TAC) Module 3 Evaporative Emissions (EVAP) Canister Purge Solenoid 4 - Park/Neutral Position Switch 5 - Starter
6 - Starter Solenoid 7 - Engine Oil Pressure (EOP) Switch 8 - Knock Sensor (KS) 2 9 - A/C
Compressor Clutch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Auxiliary Power Outlet >
Component Information > Locations
Power Outlets Components View
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Auxiliary Power Outlet >
Component Information > Diagrams > Diagram Information and Instructions
Auxiliary Power Outlet: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Auxiliary Power Outlet >
Component Information > Diagrams > Diagram Information and Instructions > Page 11765
Electrical Symbols Part 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Auxiliary Power Outlet: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11786
1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11794
6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11810
4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 11811
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11812
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11813
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11814
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11815
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11816
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 11817
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11818
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11819
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11820
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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Component Information > Diagrams > Diagram Information and Instructions > Page 11821
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11822
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11823
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 11824
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11825
2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Diagrams > Diagram Information and Instructions > Page 11826
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11827
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11828
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Component Information > Diagrams > Diagram Information and Instructions > Page 11829
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11830
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11831
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11832
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11833
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11834
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11835
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11837
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11838
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11839
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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Component Information > Diagrams > Diagram Information and Instructions > Page 11840
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11841
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11842
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Component Information > Diagrams > Diagram Information and Instructions > Page 11852
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Auxiliary Power Outlet: Connector Views
Auxiliary Power Outlet - 1
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Auxiliary Power Outlet - 2
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Auxiliary Power Outlet: Service and Repair
CIGAR LIGHTER RECEPTACLE OR 12-VOLT ACCESSORY POWER RECEPTACLE
REPLACEMENT
TOOLS REQUIRED
J 42059 Cigar Lighter Socket Remover
REMOVAL PROCEDURE
1. Remove the auxiliary power outlet fuse from the fuse block. 2. Remove the receptacle: 1. Look
into the receptacle. There are two 3 mm (0.11 in) tab windows 12 mm (0.47 in) from the front of the
receptacle. The J 42059 pushes the
plastic latches from these tab windows and the receptacle can be pulled straight out.
2. Place one side of the "T" portion of the J 42059 into the tab window. The J 42059 will not fit
straight into the receptacle. Angle the J 42059
slightly for insertion into the receptacle.
3. Insert the other side of the "T" into the opposite tab window.You must move the J 42059 handle
toward horizontal to engage the other tab window. 4. Use the J 42059 to pull the receptacle straight
out.
3. If J 42059 tool fails to release the lighter socket from the retainer, perform the following alternate
method: 1. Insert a small grinding tool with a cutoff wheel into the socket. 2. Remove the plastic
latches in the 3 mm (0.11 in) square windows. 3. Use the J 42059 as directed above to remove the
socket.
INSTALLATION PROCEDURE
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1. Route the connector through the retainer. Align the accessory power receptacle retainer to the
slot in the opening. 2. Install the retainer by pressing into place fully seated. 3. Connect the
electrical connector to the receptacle. 4. Align the tabs on the receptacle to the slots in the retainer.
Install the accessory power receptacle by pressing into place until fully seated. 5. Install the
accessory power receptacle fuse.
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Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Branching Point > Component
Information > Diagrams
SP200
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Electronic Noise Suppressor >
Component Information > Technical Service Bulletins > Customer Interest for Electronic Noise Suppressor: >
07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R)
Electronic Noise Suppressor: Customer Interest Audio System - Noise When Using OnStar(R)
TECHNICAL
Bulletin No.: 07-08-46-002D
Date: July 29, 2009
Subject: Audio Whine Noise from Radio Speakers When Using OnStar(R) (Install Noise
Suppression Filter)
Models:
2007-2010 GM Passenger Cars and Trucks (Including Saturn) 2007-2010 HUMMER H2, H3
2007-2009 Saab 9-7X Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update the Warranty Information. Please discard
Corporate Bulletin Number 07-08-46-002C (Section 08 - Body and Accessories).
Condition
Some customers may comment on an audio whine coming from the radio speakers when using the
OnStar(R) system. The amplitude and frequency of the whine will change with an increase or
decrease in engine speed.
Cause
This condition may be caused by electrical noise on the OnStar(R) Vehicle Communication
Interface Module (VCIM) battery feed wire being passed to the microphone output pins at the radio.
Correction
Technicians are to install a noise suppression filter, P/N 1224205, into the OnStar(R) battery
voltage circuit, a few centimeters (inches) from the VCIM. The filter package has three attached
wires - a single yellow wire at one end with a yellow wire and a black wire at the other. Install the
single yellow wire side into the battery voltage circuit towards the VCIM. Install the remaining single
yellow wire into the battery voltage circuit toward the fuse and the black wire to ground.
Important The noise suppression filter is polarity sensitive. The filter is designed to be most
effective when the end with the capacitor ground is connected towards the source of the electrical
noise. Install the filter in this polarity first. If the noise level is still not satisfactory, try disconnecting
the capacitor ground. In some cases, if the first installation does not correct the noise, try reversing
the filter polarity (removing the filter, turning it end for end and then reinstalling it) and grounding
the capacitor lead.
Parts Information
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
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07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R) > Page 11880
Warranty Information (Saab U.S. Models)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Electronic Noise Suppressor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Electronic Noise Suppressor: >
07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R)
Electronic Noise Suppressor: All Technical Service Bulletins Audio System - Noise When Using
OnStar(R)
TECHNICAL
Bulletin No.: 07-08-46-002D
Date: July 29, 2009
Subject: Audio Whine Noise from Radio Speakers When Using OnStar(R) (Install Noise
Suppression Filter)
Models:
2007-2010 GM Passenger Cars and Trucks (Including Saturn) 2007-2010 HUMMER H2, H3
2007-2009 Saab 9-7X Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update the Warranty Information. Please discard
Corporate Bulletin Number 07-08-46-002C (Section 08 - Body and Accessories).
Condition
Some customers may comment on an audio whine coming from the radio speakers when using the
OnStar(R) system. The amplitude and frequency of the whine will change with an increase or
decrease in engine speed.
Cause
This condition may be caused by electrical noise on the OnStar(R) Vehicle Communication
Interface Module (VCIM) battery feed wire being passed to the microphone output pins at the radio.
Correction
Technicians are to install a noise suppression filter, P/N 1224205, into the OnStar(R) battery
voltage circuit, a few centimeters (inches) from the VCIM. The filter package has three attached
wires - a single yellow wire at one end with a yellow wire and a black wire at the other. Install the
single yellow wire side into the battery voltage circuit towards the VCIM. Install the remaining single
yellow wire into the battery voltage circuit toward the fuse and the black wire to ground.
Important The noise suppression filter is polarity sensitive. The filter is designed to be most
effective when the end with the capacitor ground is connected towards the source of the electrical
noise. Install the filter in this polarity first. If the noise level is still not satisfactory, try disconnecting
the capacitor ground. In some cases, if the first installation does not correct the noise, try reversing
the filter polarity (removing the filter, turning it end for end and then reinstalling it) and grounding
the capacitor lead.
Parts Information
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Electronic Noise Suppressor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Electronic Noise Suppressor: >
07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R) > Page 11886
Warranty Information (Saab U.S. Models)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse > Component Information >
Technical Service Bulletins > Electrical - Aftermarket Fuse Warning
Fuse: Technical Service Bulletins Electrical - Aftermarket Fuse Warning
Bulletin No.: 07-08-45-002
Date: September 05, 2007
ADVANCED SERVICE INFORMATION
Subject: Service Alert: Concerns With Aftermarket Fuses in GM Vehicles
Models: 2008 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2008 and
Prior HUMMER H2, H3 2008 and Prior Saab 9-7X
Concerns with Harbor Freight Tools "Storehouse" Branded Blade Type Fuses
General Motors has become aware of a fuse recall by Harbor Freight Tools/Storehouse for a
variety of aftermarket fuses. In two cases, these fuses have not provided protection for the wiring
system of the vehicles they were customer installed in.
Upon testing the 15 amp version, it was found that the fuse still would not "open" when shorted
directly across the battery terminals.
How to Identify These Fuses
Packed in a 120 piece set, the fuse has a translucent, hard plastic, blue body with the amperage
stamped into the top. There are no white painted numbers on the fuse to indicate amperage. There
are no identifying marks on the fuse to tell who is making it. The fuses are known to be distributed
by Harbor Freight Tools but there may be other marketers, and packaging of this style of fuse. It
would be prudent to replace these fuses if found in a customers vehicle. Likewise, if wiring
overheating is found you should check the fuse panel for the presence of this style of fuse.
All GM dealers should use genuine GM fuses on the vehicles they service. You should also
encourage the use of GM fuses to your customers to assure they are getting the required electrical
system protection. GM has no knowledge of any concerns with other aftermarket fuses. If
additional information becomes available, this bulletin will be updated.
Disclaimer
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Locations > I/P Fuse Block
Fuse: Locations I/P Fuse Block
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Fuse: Locations Underhood Fuse Block
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Locations > I/P Fuse Block > Page 11896
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Locations > I/P Fuse Block > Page 11897
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Diagrams > Diagram Information and Instructions
Fuse: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Fuse: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Information > Diagrams > Diagram Information and Instructions
Fuse Block: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Fuse Block: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12049
3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Information > Diagrams > Diagram Information and Instructions > Page 12050
Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12051
6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12052
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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Information > Diagrams > Diagram Information and Instructions > Page 12053
The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12054
4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12055
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12056
2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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Information > Diagrams > Diagram Information and Instructions > Page 12057
3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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Information > Diagrams > Diagram Information and Instructions > Page 12058
5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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Information > Diagrams > Diagram Information and Instructions > Page 12059
View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 12060
3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 12061
5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12062
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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Information > Diagrams > Diagram Information and Instructions > Page 12063
2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12064
3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12065
6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12066
8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12067
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 12068
3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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Information > Diagrams > Diagram Information and Instructions > Page 12069
5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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Information > Diagrams > Diagram Information and Instructions > Page 12070
7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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Information > Diagrams > Diagram Information and Instructions > Page 12071
9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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Information > Diagrams > Diagram Information and Instructions > Page 12072
3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 12073
7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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Information > Diagrams > Diagram Information and Instructions > Page 12074
2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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Information > Diagrams > Diagram Information and Instructions > Page 12075
4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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Information > Diagrams > Diagram Information and Instructions > Page 12076
6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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Information > Diagrams > Diagram Information and Instructions > Page 12077
3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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Information > Diagrams > Diagram Information and Instructions > Page 12078
2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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Information > Diagrams > Diagram Information and Instructions > Page 12079
5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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Information > Diagrams > Diagram Information and Instructions > Page 12080
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12082
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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Information > Diagrams > Diagram Information and Instructions > Page 12083
6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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Information > Diagrams > Diagram Information and Instructions > Page 12084
2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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Information > Diagrams > Diagram Information and Instructions > Page 12085
View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12087
If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12088
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12089
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12090
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12091
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12092
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12093
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12094
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12095
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12096
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 12097
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12098
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12099
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12100
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12101
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12102
Fuse Block: Connector Views
Underhood Fuse Block
Fuse Block Underhood - C1 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12103
Fuse Block Underhood - C1 (Pin 16 To 46)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12104
Fuse Block Underhood - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12105
Fuse Block Underhood - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12106
Fuse Block Underhood - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12107
Fuse Block Underhood - C3 (Pin 1 To 14)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12108
Fuse Block Underhood - C3 (Pin 15 To 22)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12109
Fuse Block Underhood - C3 (Pin 1 To 14)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12110
Fuse Block Underhood - C3 (Pin 15 To 22)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12111
Fuse Block - Underhood (C1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12112
Fuse Block - Underhood (C1) (Pin 14 To 46)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12113
Fuse Block - Underhood (C1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12114
Fuse Block - Underhood (C2) (Pin 5 To C)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12115
Fuse Block - Underhood (C3) (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12116
Fuse Block - Underhood (C3) (Pin 16 To 22)
I/P Fuse Block
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12117
Fuse Block I/P - C3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12118
Fuse Block I/P - C3 (Pin 1 To 43)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12119
Fuse Block I/P - C3 (Pin 45 To C)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12120
Fuse Block I/P - C1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12121
Fuse Block I/P - C1 (Pin 14 To 40)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12122
Fuse Block I/P - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12123
Fuse Block I/P (C1) (Pin 1 To 13)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12124
Fuse Block I/P (C1) (Pin 14 To 46)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12125
Fuse Block I/P (C2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12126
Fuse Block I/P (C3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12127
Fuse Block I/P (C3) (Pin 1 To 46)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Diagrams > Diagram Information and Instructions > Page 12128
Fuse Block I/P (C3) (Pin 47 To C)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Service and Repair > Instrument Panel Electrical Center or Junction Block Replacement
Fuse Block: Service and Repair Instrument Panel Electrical Center or Junction Block Replacement
INSTRUMENT PANEL ELECTRICAL CENTER OR JUNCTION BLOCK REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: Record all preset radio stations.
Turn the ignition OFF.
2. Remove the screws from the battery cooling box. Remove the battery cover. 3. Disconnect the
negative battery cable. 4. Disconnect the positive battery cable. 5. Remove the console.
6. Remove the nut holding the following fuse block connectors to the back of the I/P fuse block (4):
- The body 68-way connector (1)
- The I/P 68-way connector (2)
- The I/P 24-way connector (3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Service and Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 12131
7. Remove the bolt holding the fuse block into place. 8. Remove the ground wire (1). 9. Remove
the fuse block.
INSTALLATION PROCEDURE
1. NOTE: Refer to Fastener Notice.
Install the fuse block and attach the ground wire (1) and attach the bolt.
Tighten the bolt to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Service and Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 12132
2. Connect the harness connectors to the back of the I/P fuse block (4).
Tighten the connectors to 4 N.m (35 lb in).
3. Install the console. 4. Connect the positive battery cable.
Tighten the bolt to 17 N.m (13 lb ft).
5. Connect the negative battery cable.
Tighten the bolt to 17 N.m (13 lb ft).
6. Install the battery cooling box cover and install the screws.
Tighten the screws to 2 N.m (18 lb in).
7. Set the radio stations to the preset selections.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Service and Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 12133
Fuse Block: Service and Repair Underhood Electrical Center or Junction Block Replacement
UNDERHOOD ELECTRICAL CENTER OR JUNCTION BLOCK REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the negative battery cable.
2. Remove the underhood accessory wiring junction block cover. 3. Remove the nut at the end of
the fuse block and remove both the positive battery cable and the EPS cable.
4. Loosen the bolts (1) on the top of the fuse block until the block can be lifted off the connectors. 5.
Remove the I/P connectors (2).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Service and Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 12134
6. IMPORTANT: All 3 fuse block 68-way connectors are held into place to the fuse block case by
push-in retainers.
Pull up on each of the following 68-way connectors until they come out. 1. Fuse block case (1) 2.
Forward lamp 68-way connector (2) 3. Engine 68-way connector (3) 4. I/P 68-way connector (4)
INSTALLATION PROCEDURE
1. Install each of the following 68-way connectors into its proper location.
- Fuse block case (1)
- Forward lamp 68-way connector (2)
- Engine 68-way connector (3)
- I/P 68-way connector (4)
2. Push down on each connector until it is fully secured into the fuse block.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Fuse Block > Component
Information > Service and Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 12135
3. Connect the I/P connectors (2).
4. NOTE: Refer to Fastener Notice
Tighten the bolts (1) on the top of the fuse block.
Tighten the underhood accessory wiring junction block harness retaining bolts (1) to 4 N.m (35 lb
in).
5. Reconnect the positive battery cable and EPS at the end of the fuse block with the nut.
Tighten the positive battery cable nut to 17 N.m (13 lb ft).
6. Install the fuse box cover. 7. Connect the negative battery cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Grounding Point > Component
Information > Technical Service Bulletins > Electrical - Information For Electrical Ground Repair
Grounding Point: Technical Service Bulletins Electrical - Information For Electrical Ground Repair
INFORMATION
Bulletin No.: 10-08-45-001B
Date: October 25, 2010
Subject: Information for Electrical Ground Repair - Use New Replacement Fasteners with
Conductive Finish
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add the 2011 model year and update the Warranty
Information. Please discard Corporate Bulletin Number 10-08-45-001A (Section 08 - Body and
Accessories).
Electrical Ground Repair Overview
Proper electrical system function relies on secure, stable and corrosion-free electrical ground
connections. Loose, stripped, or corroded connections increase the possibility of improper system
function and loss of module communication. These conditions may also lead to unnecessary
repairs and component replacement.
In general, electrical ground connections are accomplished using one, or a combination of the
following attachment methods:
- Welded M6 stud and nut
- Welded M6 nut and bolt
- Welded M8 nut and bolt
Determine which attachment method is used and perform the appropriate or alternative repair as
described in this bulletin.
M6 Weld Stud Replacement
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. Select a location adjacent the damaged or missing M6 ground stud having 20 mm (0.79 in)
clearance behind the panel surface and 20 mm (0.79 in)
clearance surrounding the M6 conductive rivet stud flange.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
3. Drill a 10 mm (0.40 in) diameter hole through the panel.
4. Remove paint and primer from the area surrounding the 10 mm (0.40 in) hole until bare metal is
visible.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Grounding Point > Component
Information > Technical Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12140
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
5. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
6. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
7. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 8. Ensure the rivet stud is securely fastened, WITHOUT ANY detectable movement. 9.
Completely wrap the threads of the rivet stud with painters tape or equivalent.
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the ground wire terminal and conductive nut to maintain a secure, stable and
corrosion-free electrical ground.
10. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 11. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 12. Remove the painters tape or equivalent from the rivet
stud threads. 13. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 14. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Grounding Point > Component
Information > Technical Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12141
15. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 16. Install the electrical ground wire terminal to the rivet stud. 17. Select a M6
conductive nut. Refer to the Parts Information section of this bulletin. 18. Install the M6 conductive
nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in).
19. Verify proper system operation.
M6 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M6 weld nut at the electrical ground location is damaged or stripped, a M7 conductive
self-threading bolt may be used to secure the ground
wire terminal.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the weld nut and allow to dry. 3. Remove any loose metal particles from the damaged
or stripped weld nut with a stiff brush. 4. Select a M7 conductive self-threading bolt. Refer to the
Parts Information section of this bulletin 5. Using a small brush, apply Dielectric Lubricant GM P/N
12377900 (Canadian P/N 10953529) to the threads of the M7 conductive self-threading
bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
6. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 7. Install the electrical ground wire terminal to the M7 conductive self-threading bolt.
8. Install the M7 conductive self-threading bolt and:
Tighten Tighten to 9 Nm (80 lb in).
9. Verify proper system operation.
M6 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the electrical ground location is accessible from both sides of the panel, a M6 conductive bolt
and a M6 conductive nut may be used to secure
the electrical ground wire terminal. Refer to the Parts Information section of this bulletin.
2. Select a location adjacent the damaged M6 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 8.5 mm (0.33 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 8.5 mm (0.33 in) hole until bare metal is visible. 6. Select a M6 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M6 conductive bolt to the ground
location.
10. Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M6 conductive nut to the bolt and:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Grounding Point > Component
Information > Technical Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12142
Tighten Tighten to 8 Nm (71 lb in).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is accessible from both sides of the panel, a M8
conductive bolt and a M8 conductive nut may be
used to secure the electrical ground wire terminal. Refer to the Parts Information section of this
bulletin.
2. Select a location adjacent the M8 weld nut having 20 mm (0.79 in) clearance behind the panel
surface and 20 mm (0.79 in) clearance surrounding
the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 10 mm (0.40 in) hole until bare metal is visible. 6. Select a M8 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M8 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M8 conductive bolt to the ground
location.
10. Select a M8 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M8 conductive nut to the bolt and:
Tighten Tighten to 22 Nm (16 lb ft).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is not accessible from both sides of the panel, a M6
conductive rivet stud and a M6 conductive nut
may be used to secure the electrical ground wire terminal.
2. Select a location adjacent the damaged M8 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the M6 conductive rivet stud flange.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Grounding Point > Component
Information > Technical Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12143
5. Remove paint and primer from the area surrounding the 10 mm (0.40 in) until bare metal is
visible.
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
6. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
7. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
8. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 9. Ensure the new rivet stud is securely fastened, WITHOUT ANY detectable movement.
10. Completely wrap the threads of the rivet stud with painters tape or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Grounding Point > Component
Information > Technical Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12144
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the electrical ground wire terminal and conductive nut to maintain a secure, stable
and corrosion-free electrical ground.
11. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 12. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 13. Remove the painters tape or equivalent from the rivet
stud threads. 14. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 15. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
16. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 17. Install the electrical ground wire terminal to the M6 conductive rivet stud. 18.
Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 19. Install the M6
conductive nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in)
20. Verify proper system operation.
Parts Information
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Grounding Point > Component
Information > Technical Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12145
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Technical Service Bulletins > Customer Interest for Multiple Junction Connector: > 07-06-04-019D
> Jun > 10 > Electrical - Intermittent MIL/DTC P2138/Reduced Power
Multiple Junction Connector: Customer Interest Electrical - Intermittent MIL/DTC P2138/Reduced
Power
TECHNICAL
Bulletin No.: 07-06-04-019D
Date: June 28, 2010
Subject: Intermittent Malfunction Indicator Lamp (MIL) Illuminated, DTC P2138 with Reduced
Engine Power (Repair Instrument Panel (IP) to Body Harness Connector)
Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years and warranty information.
Please discard Corporate Bulletin Number 07-06-04-019C (Section 06 - Engine/Propulsion
System)
Condition
- Some customers may comment on an intermittent malfunction indicator lamp (MIL) being
Illuminated with a message or an indicator that displays Reduced Engine Power.
- The technician may observe on a scan tool DTC P2138 - Accelerator Pedal Position (APP)
Sensor 1-2 Correlation set as Current or in History.
Cause
This condition may be caused by water intrusion into the instrument panel (IP) to body harness
connector, which carries the APP sensor signals to the ECM/PCM. This water intrusion results in a
voltage difference between APP Sensor 1 and APP Sensor 2 that exceeds a predetermined value
for more than a calibrated period of time, setting P2138.
Correction
Note Aftermarket equipment can generate DTC P2138 and/or other DTCs.
1. Verify that aftermarket equipment is not electrically connected to any of the APP sensor signal or
low reference circuits or to any other ECM/PCM
5V reference or low reference circuits. Refer to Checking Aftermarket Accessories in SI.
2. Perform the Diagnostic System Check - Vehicle.
‹› If any 5V reference DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. ‹› If any
5V reference DTCs are not set, proceed to Step 3.
3. Locate the IP to body harness connector, which may be located in and around the left hand kick
panel area or inside the IP. Depending on the
vehicle and model year, refer to Wiring Systems or Power and Signal Distribution in SI.
Note Some examples of potential water leaks are: A-pillar seals, sunroof drain lines (if equipped)
and windshield/cowl sealing.
4. Inspect for a water leak in the area. If necessary use a water hose to determine the source of the
leak. Refer to General Information > Water Leaks
in SI.
‹› If a water leak is observed, repair as necessary. Verify the effectiveness of the repair.
5. Inspect the IP to body harness connector terminals for corrosion and debris. Refer to Testing for
Intermittent Conditions and Poor Connections in
SI.
‹› If any corrosion and/or debris is observed, repair as necessary.
6. After completing the repair, verify the proper operation of the system. Depending on the vehicle
and model year, perform the Diagnostic Repair
Verification procedure or refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Technical Service Bulletins > Customer Interest for Multiple Junction Connector: > 07-06-04-019D
> Jun > 10 > Electrical - Intermittent MIL/DTC P2138/Reduced Power > Page 12154
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the appropriate labor operation for the source of the
water leak
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Multiple Junction Connector: >
07-06-04-019D > Jun > 10 > Electrical - Intermittent MIL/DTC P2138/Reduced Power
Multiple Junction Connector: All Technical Service Bulletins Electrical - Intermittent MIL/DTC
P2138/Reduced Power
TECHNICAL
Bulletin No.: 07-06-04-019D
Date: June 28, 2010
Subject: Intermittent Malfunction Indicator Lamp (MIL) Illuminated, DTC P2138 with Reduced
Engine Power (Repair Instrument Panel (IP) to Body Harness Connector)
Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years and warranty information.
Please discard Corporate Bulletin Number 07-06-04-019C (Section 06 - Engine/Propulsion
System)
Condition
- Some customers may comment on an intermittent malfunction indicator lamp (MIL) being
Illuminated with a message or an indicator that displays Reduced Engine Power.
- The technician may observe on a scan tool DTC P2138 - Accelerator Pedal Position (APP)
Sensor 1-2 Correlation set as Current or in History.
Cause
This condition may be caused by water intrusion into the instrument panel (IP) to body harness
connector, which carries the APP sensor signals to the ECM/PCM. This water intrusion results in a
voltage difference between APP Sensor 1 and APP Sensor 2 that exceeds a predetermined value
for more than a calibrated period of time, setting P2138.
Correction
Note Aftermarket equipment can generate DTC P2138 and/or other DTCs.
1. Verify that aftermarket equipment is not electrically connected to any of the APP sensor signal or
low reference circuits or to any other ECM/PCM
5V reference or low reference circuits. Refer to Checking Aftermarket Accessories in SI.
2. Perform the Diagnostic System Check - Vehicle.
‹› If any 5V reference DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. ‹› If any
5V reference DTCs are not set, proceed to Step 3.
3. Locate the IP to body harness connector, which may be located in and around the left hand kick
panel area or inside the IP. Depending on the
vehicle and model year, refer to Wiring Systems or Power and Signal Distribution in SI.
Note Some examples of potential water leaks are: A-pillar seals, sunroof drain lines (if equipped)
and windshield/cowl sealing.
4. Inspect for a water leak in the area. If necessary use a water hose to determine the source of the
leak. Refer to General Information > Water Leaks
in SI.
‹› If a water leak is observed, repair as necessary. Verify the effectiveness of the repair.
5. Inspect the IP to body harness connector terminals for corrosion and debris. Refer to Testing for
Intermittent Conditions and Poor Connections in
SI.
‹› If any corrosion and/or debris is observed, repair as necessary.
6. After completing the repair, verify the proper operation of the system. Depending on the vehicle
and model year, perform the Diagnostic Repair
Verification procedure or refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Multiple Junction Connector: >
07-06-04-019D > Jun > 10 > Electrical - Intermittent MIL/DTC P2138/Reduced Power > Page 12160
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the appropriate labor operation for the source of the
water leak
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199
Multiple Junction Connector: Diagrams C100 - C199
C101 (Pin 1 To 8)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12163
C101 (Pin 8)
C102 (Pin 1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12164
C103 (Pin A To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12165
C104 (Pin A To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12166
C105 (Pin A To P)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12167
C105 (Pin R)
C106 (Pin 1 To 12)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12168
C108 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12169
Multiple Junction Connector: Diagrams C200 - C299
C203 (Pin 1 To 16)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12170
C205 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12171
C206 (Pin 1 To 8)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12172
C206 (Pin 9 To 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12173
C210 (Pin 1 To 12)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12174
C210 (Pin 13 To 26)
C212 (Pin 1 To 5)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12175
C213 (Pin 2 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12176
C214 (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12177
C214 (-ASF) (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12178
C216 (Pin A To R)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12179
C204 (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12180
C218 (-ASF) (Pin A 1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12181
C276 (Pin C To K)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12182
C219 (Pin 1 To 3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12183
Multiple Junction Connector: Diagrams C300 - C399
C305(Pin 2 To 7)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12184
C308 (-KA1) (Pin A To D)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12185
C309 (KA1) (Pin A To G) (Pin A To G)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12186
C309 (KA1) (Pin H To L)
C309 (-KA1) (Pin A To E)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12187
C310 (Pin A To K)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12188
Multiple Junction Connector: Diagrams C400 - C499
C400 (Pin 1 To 7)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12189
C400 (Pin 8 To 10)
C402
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12190
C404
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12191
C405 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12192
C406 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12193
C410 (Pin 1 To 4)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12194
C407 (Pin 1 To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12195
C409 (Pin 1 To 4)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12196
C411 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12197
C401
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12198
C412 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12199
C414(Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12200
C408 (Pin 1 To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12201
Multiple Junction Connector: Diagrams
C101 (Pin 1 To 8)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12202
C101 (Pin 8)
C102 (Pin 1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12203
C103 (Pin A To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12204
C104 (Pin A To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12205
C105 (Pin A To P)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12206
C105 (Pin R)
C106 (Pin 1 To 12)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12207
C108 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12208
C203 (Pin 1 To 16)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12209
C205 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12210
C206 (Pin 1 To 8)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12211
C206 (Pin 9 To 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12212
C210 (Pin 1 To 12)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12213
C210 (Pin 13 To 26)
C212 (Pin 1 To 5)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12214
C213 (Pin 2 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12215
C214 (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12216
C214 (-ASF) (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12217
C216 (Pin A To R)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12218
C204 (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12219
C218 (-ASF) (Pin A 1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12220
C276 (Pin C To K)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12221
C219 (Pin 1 To 3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12222
C305(Pin 2 To 7)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12223
C308 (-KA1) (Pin A To D)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12224
C309 (KA1) (Pin A To G) (Pin A To G)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12225
C309 (KA1) (Pin H To L)
C309 (-KA1) (Pin A To E)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12226
C310 (Pin A To K)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12227
C400 (Pin 1 To 7)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12228
C400 (Pin 8 To 10)
C402
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12229
C404
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12230
C405 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12231
C406 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12232
C410 (Pin 1 To 4)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12233
C407 (Pin 1 To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12234
C409 (Pin 1 To 4)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12235
C411 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12236
C401
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12237
C412 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12238
C414(Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12239
C408 (Pin 1 To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12240
C500 (Pin 3 To 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12241
C600 (Pin 3 To 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12242
C700 (Pin A1 To C8)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Multiple Junction Connector >
Component Information > Diagrams > C100 - C199 > Page 12243
C800 (Pin A 1 To C6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Power Distribution Relay >
Component Information > Service and Repair > Relay Replacement (Attached to Wire Harness)
Power Distribution Relay: Service and Repair Relay Replacement (Attached to Wire Harness)
RELAY REPLACEMENT (ATTACHED TO WIRE HARNESS)
REMOVAL PROCEDURE
1. Locate the relay. 2. Remove any fasteners which hold the relay in place. 3. Remove any
connector position assurance (CPA) devices or secondary locks.
4. IMPORTANT: Use care when removing a relay in a wiring harness when the relay is secured by
fasteners or tape.
Separate the relay (1) from the wire harness connector (2).
INSTALLATION PROCEDURE
1. Connect the relay (1) to the wire harness connector (2). 2. Install any connector position
assurance (CPA) devices or secondary locks. 3. Install the relay using any fasteners or tape that
originally held the relay in place.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Power Distribution Relay >
Component Information > Service and Repair > Relay Replacement (Attached to Wire Harness) > Page 12248
Power Distribution Relay: Service and Repair Relay Replacement (Within an Electrical Center)
RELAY REPLACEMENT (WITHIN AN ELECTRICAL CENTER)
TOOLS REQUIRED
J 43244 Relay Puller Pliers
REMOVAL PROCEDURE
1. Remove the electrical center cover. 2. Locate the relay.
3. IMPORTANT:
- Always note the orientation of the relay.
- Ensure that the electrical center is secure, as not to put added stress on the wires or terminals.
Using the J 43244 (1) position the tool on opposing corners of the relay (2).
4. NOTE: Use J43244 to pull the relay straight out from the electrical center terminals. The use of
pliers or a flat bladed tool could damage the
electrical center.
Remove the relay (2) from the electrical center.
INSTALLATION PROCEDURE
1. Install the relay (2) in the same position as removed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Power Distribution Relay >
Component Information > Service and Repair > Relay Replacement (Attached to Wire Harness) > Page 12249
2. Install the electrical center cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Relays and Modules - Power and
Ground Distribution > Power Distribution Relay > Component Information > Service and Repair > Relay Replacement
(Attached to Wire Harness)
Power Distribution Relay: Service and Repair Relay Replacement (Attached to Wire Harness)
RELAY REPLACEMENT (ATTACHED TO WIRE HARNESS)
REMOVAL PROCEDURE
1. Locate the relay. 2. Remove any fasteners which hold the relay in place. 3. Remove any
connector position assurance (CPA) devices or secondary locks.
4. IMPORTANT: Use care when removing a relay in a wiring harness when the relay is secured by
fasteners or tape.
Separate the relay (1) from the wire harness connector (2).
INSTALLATION PROCEDURE
1. Connect the relay (1) to the wire harness connector (2). 2. Install any connector position
assurance (CPA) devices or secondary locks. 3. Install the relay using any fasteners or tape that
originally held the relay in place.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Relays and Modules - Power and
Ground Distribution > Power Distribution Relay > Component Information > Service and Repair > Relay Replacement
(Attached to Wire Harness) > Page 12255
Power Distribution Relay: Service and Repair Relay Replacement (Within an Electrical Center)
RELAY REPLACEMENT (WITHIN AN ELECTRICAL CENTER)
TOOLS REQUIRED
J 43244 Relay Puller Pliers
REMOVAL PROCEDURE
1. Remove the electrical center cover. 2. Locate the relay.
3. IMPORTANT:
- Always note the orientation of the relay.
- Ensure that the electrical center is secure, as not to put added stress on the wires or terminals.
Using the J 43244 (1) position the tool on opposing corners of the relay (2).
4. NOTE: Use J43244 to pull the relay straight out from the electrical center terminals. The use of
pliers or a flat bladed tool could damage the
electrical center.
Remove the relay (2) from the electrical center.
INSTALLATION PROCEDURE
1. Install the relay (2) in the same position as removed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Relays and Modules - Power and
Ground Distribution > Power Distribution Relay > Component Information > Service and Repair > Relay Replacement
(Attached to Wire Harness) > Page 12256
2. Install the electrical center cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > Customer Interest: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set
By Various Control Modules
Wiring Harness: Customer Interest Electrical - MIL ON/DTC's Set By Various Control Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > Customer Interest: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set
By Various Control Modules > Page 12265
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > Customer Interest: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set
By Various Control Modules > Page 12266
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > Customer Interest: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set
By Various Control Modules > Page 12267
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > Customer Interest: > 07-06-04-019D > Jun > 10 > Electrical - Intermittent
MIL/DTC P2138/Reduced Power
Wiring Harness: Customer Interest Electrical - Intermittent MIL/DTC P2138/Reduced Power
TECHNICAL
Bulletin No.: 07-06-04-019D
Date: June 28, 2010
Subject: Intermittent Malfunction Indicator Lamp (MIL) Illuminated, DTC P2138 with Reduced
Engine Power (Repair Instrument Panel (IP) to Body Harness Connector)
Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years and warranty information.
Please discard Corporate Bulletin Number 07-06-04-019C (Section 06 - Engine/Propulsion
System)
Condition
- Some customers may comment on an intermittent malfunction indicator lamp (MIL) being
Illuminated with a message or an indicator that displays Reduced Engine Power.
- The technician may observe on a scan tool DTC P2138 - Accelerator Pedal Position (APP)
Sensor 1-2 Correlation set as Current or in History.
Cause
This condition may be caused by water intrusion into the instrument panel (IP) to body harness
connector, which carries the APP sensor signals to the ECM/PCM. This water intrusion results in a
voltage difference between APP Sensor 1 and APP Sensor 2 that exceeds a predetermined value
for more than a calibrated period of time, setting P2138.
Correction
Note Aftermarket equipment can generate DTC P2138 and/or other DTCs.
1. Verify that aftermarket equipment is not electrically connected to any of the APP sensor signal or
low reference circuits or to any other ECM/PCM
5V reference or low reference circuits. Refer to Checking Aftermarket Accessories in SI.
2. Perform the Diagnostic System Check - Vehicle.
‹› If any 5V reference DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. ‹› If any
5V reference DTCs are not set, proceed to Step 3.
3. Locate the IP to body harness connector, which may be located in and around the left hand kick
panel area or inside the IP. Depending on the
vehicle and model year, refer to Wiring Systems or Power and Signal Distribution in SI.
Note Some examples of potential water leaks are: A-pillar seals, sunroof drain lines (if equipped)
and windshield/cowl sealing.
4. Inspect for a water leak in the area. If necessary use a water hose to determine the source of the
leak. Refer to General Information > Water Leaks
in SI.
‹› If a water leak is observed, repair as necessary. Verify the effectiveness of the repair.
5. Inspect the IP to body harness connector terminals for corrosion and debris. Refer to Testing for
Intermittent Conditions and Poor Connections in
SI.
‹› If any corrosion and/or debris is observed, repair as necessary.
6. After completing the repair, verify the proper operation of the system. Depending on the vehicle
and model year, perform the Diagnostic Repair
Verification procedure or refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > Customer Interest: > 07-06-04-019D > Jun > 10 > Electrical - Intermittent
MIL/DTC P2138/Reduced Power > Page 12272
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the appropriate labor operation for the source of the
water leak
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 09-06-03-004D > Dec > 10
> Electrical - MIL ON/DTC's Set By Various Control Modules
Wiring Harness: All Technical Service Bulletins Electrical - MIL ON/DTC's Set By Various Control
Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 09-06-03-004D > Dec > 10
> Electrical - MIL ON/DTC's Set By Various Control Modules > Page 12278
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 09-06-03-004D > Dec > 10
> Electrical - MIL ON/DTC's Set By Various Control Modules > Page 12279
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 09-06-03-004D > Dec > 10
> Electrical - MIL ON/DTC's Set By Various Control Modules > Page 12280
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10
> Electrical - Information For Electrical Ground Repair
Wiring Harness: All Technical Service Bulletins Electrical - Information For Electrical Ground Repair
INFORMATION
Bulletin No.: 10-08-45-001B
Date: October 25, 2010
Subject: Information for Electrical Ground Repair - Use New Replacement Fasteners with
Conductive Finish
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add the 2011 model year and update the Warranty
Information. Please discard Corporate Bulletin Number 10-08-45-001A (Section 08 - Body and
Accessories).
Electrical Ground Repair Overview
Proper electrical system function relies on secure, stable and corrosion-free electrical ground
connections. Loose, stripped, or corroded connections increase the possibility of improper system
function and loss of module communication. These conditions may also lead to unnecessary
repairs and component replacement.
In general, electrical ground connections are accomplished using one, or a combination of the
following attachment methods:
- Welded M6 stud and nut
- Welded M6 nut and bolt
- Welded M8 nut and bolt
Determine which attachment method is used and perform the appropriate or alternative repair as
described in this bulletin.
M6 Weld Stud Replacement
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. Select a location adjacent the damaged or missing M6 ground stud having 20 mm (0.79 in)
clearance behind the panel surface and 20 mm (0.79 in)
clearance surrounding the M6 conductive rivet stud flange.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
3. Drill a 10 mm (0.40 in) diameter hole through the panel.
4. Remove paint and primer from the area surrounding the 10 mm (0.40 in) hole until bare metal is
visible.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10
> Electrical - Information For Electrical Ground Repair > Page 12285
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
5. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
6. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
7. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 8. Ensure the rivet stud is securely fastened, WITHOUT ANY detectable movement. 9.
Completely wrap the threads of the rivet stud with painters tape or equivalent.
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the ground wire terminal and conductive nut to maintain a secure, stable and
corrosion-free electrical ground.
10. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 11. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 12. Remove the painters tape or equivalent from the rivet
stud threads. 13. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 14. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10
> Electrical - Information For Electrical Ground Repair > Page 12286
15. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 16. Install the electrical ground wire terminal to the rivet stud. 17. Select a M6
conductive nut. Refer to the Parts Information section of this bulletin. 18. Install the M6 conductive
nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in).
19. Verify proper system operation.
M6 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M6 weld nut at the electrical ground location is damaged or stripped, a M7 conductive
self-threading bolt may be used to secure the ground
wire terminal.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the weld nut and allow to dry. 3. Remove any loose metal particles from the damaged
or stripped weld nut with a stiff brush. 4. Select a M7 conductive self-threading bolt. Refer to the
Parts Information section of this bulletin 5. Using a small brush, apply Dielectric Lubricant GM P/N
12377900 (Canadian P/N 10953529) to the threads of the M7 conductive self-threading
bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
6. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 7. Install the electrical ground wire terminal to the M7 conductive self-threading bolt.
8. Install the M7 conductive self-threading bolt and:
Tighten Tighten to 9 Nm (80 lb in).
9. Verify proper system operation.
M6 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the electrical ground location is accessible from both sides of the panel, a M6 conductive bolt
and a M6 conductive nut may be used to secure
the electrical ground wire terminal. Refer to the Parts Information section of this bulletin.
2. Select a location adjacent the damaged M6 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 8.5 mm (0.33 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 8.5 mm (0.33 in) hole until bare metal is visible. 6. Select a M6 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M6 conductive bolt to the ground
location.
10. Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M6 conductive nut to the bolt and:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10
> Electrical - Information For Electrical Ground Repair > Page 12287
Tighten Tighten to 8 Nm (71 lb in).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is accessible from both sides of the panel, a M8
conductive bolt and a M8 conductive nut may be
used to secure the electrical ground wire terminal. Refer to the Parts Information section of this
bulletin.
2. Select a location adjacent the M8 weld nut having 20 mm (0.79 in) clearance behind the panel
surface and 20 mm (0.79 in) clearance surrounding
the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 10 mm (0.40 in) hole until bare metal is visible. 6. Select a M8 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M8 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M8 conductive bolt to the ground
location.
10. Select a M8 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M8 conductive nut to the bolt and:
Tighten Tighten to 22 Nm (16 lb ft).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is not accessible from both sides of the panel, a M6
conductive rivet stud and a M6 conductive nut
may be used to secure the electrical ground wire terminal.
2. Select a location adjacent the damaged M8 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the M6 conductive rivet stud flange.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10
> Electrical - Information For Electrical Ground Repair > Page 12288
5. Remove paint and primer from the area surrounding the 10 mm (0.40 in) until bare metal is
visible.
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
6. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
7. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
8. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 9. Ensure the new rivet stud is securely fastened, WITHOUT ANY detectable movement.
10. Completely wrap the threads of the rivet stud with painters tape or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10
> Electrical - Information For Electrical Ground Repair > Page 12289
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the electrical ground wire terminal and conductive nut to maintain a secure, stable
and corrosion-free electrical ground.
11. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 12. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 13. Remove the painters tape or equivalent from the rivet
stud threads. 14. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 15. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
16. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 17. Install the electrical ground wire terminal to the M6 conductive rivet stud. 18.
Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 19. Install the M6
conductive nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in)
20. Verify proper system operation.
Parts Information
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10
> Electrical - Information For Electrical Ground Repair > Page 12290
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 07-06-04-019D > Jun > 10
> Electrical - Intermittent MIL/DTC P2138/Reduced Power
Wiring Harness: All Technical Service Bulletins Electrical - Intermittent MIL/DTC P2138/Reduced
Power
TECHNICAL
Bulletin No.: 07-06-04-019D
Date: June 28, 2010
Subject: Intermittent Malfunction Indicator Lamp (MIL) Illuminated, DTC P2138 with Reduced
Engine Power (Repair Instrument Panel (IP) to Body Harness Connector)
Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years and warranty information.
Please discard Corporate Bulletin Number 07-06-04-019C (Section 06 - Engine/Propulsion
System)
Condition
- Some customers may comment on an intermittent malfunction indicator lamp (MIL) being
Illuminated with a message or an indicator that displays Reduced Engine Power.
- The technician may observe on a scan tool DTC P2138 - Accelerator Pedal Position (APP)
Sensor 1-2 Correlation set as Current or in History.
Cause
This condition may be caused by water intrusion into the instrument panel (IP) to body harness
connector, which carries the APP sensor signals to the ECM/PCM. This water intrusion results in a
voltage difference between APP Sensor 1 and APP Sensor 2 that exceeds a predetermined value
for more than a calibrated period of time, setting P2138.
Correction
Note Aftermarket equipment can generate DTC P2138 and/or other DTCs.
1. Verify that aftermarket equipment is not electrically connected to any of the APP sensor signal or
low reference circuits or to any other ECM/PCM
5V reference or low reference circuits. Refer to Checking Aftermarket Accessories in SI.
2. Perform the Diagnostic System Check - Vehicle.
‹› If any 5V reference DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. ‹› If any
5V reference DTCs are not set, proceed to Step 3.
3. Locate the IP to body harness connector, which may be located in and around the left hand kick
panel area or inside the IP. Depending on the
vehicle and model year, refer to Wiring Systems or Power and Signal Distribution in SI.
Note Some examples of potential water leaks are: A-pillar seals, sunroof drain lines (if equipped)
and windshield/cowl sealing.
4. Inspect for a water leak in the area. If necessary use a water hose to determine the source of the
leak. Refer to General Information > Water Leaks
in SI.
‹› If a water leak is observed, repair as necessary. Verify the effectiveness of the repair.
5. Inspect the IP to body harness connector terminals for corrosion and debris. Refer to Testing for
Intermittent Conditions and Poor Connections in
SI.
‹› If any corrosion and/or debris is observed, repair as necessary.
6. After completing the repair, verify the proper operation of the system. Depending on the vehicle
and model year, perform the Diagnostic Repair
Verification procedure or refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 07-06-04-019D > Jun > 10
> Electrical - Intermittent MIL/DTC P2138/Reduced Power > Page 12295
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the appropriate labor operation for the source of the
water leak
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 06-08-45-004 > May > 06 >
Electrical - Instrument Panel & General Wiring Repair
Wiring Harness: All Technical Service Bulletins Electrical - Instrument Panel & General Wiring
Repair
Bulletin No.: 06-08-45-004
Date: May 02, 2006
INFORMATION
Subject: Instrument Panel (I/P), Body and General Wiring Harness Repair
Models: 2007 and Prior GM Cars and Trucks 2003-2007 HUMMER H2 2006-2007 HUMMER H3
Important:
A part restriction has been implemented on all Body and I/P harnesses and is being administered
by the PQC. If a body or I/P harness replacement is required, it can take 12-28 weeks for a
harness to be built and delivered to a dealer. The dealer technician is expected to repair any
harness damage as the first and best choice before replacing a harness.
In an effort to standardize repair practices, General Motors is requiring that all wiring harnesses be
repaired instead of replaced. If there is a question concerning which connector and/or terminal you
are working on, refer to the information in the appropriate Connector End Views in SI. The
Instruction Manual J 38125-620, which is sent with each new update of the J 38125 Terminal
Repair Kit, also has terminal crimping and terminal remove information.
Important:
There are some parts in the J 38125 Terminal Repair Kit (i.e. SIR connector CPAs and heat shrink
tube (used in high heat area pigtail replacement) and some TPAs that are not available from
GMSPO. It is vitally important that each update to the J 38125 Terminal Repair Kit be done as soon
as it arrives at the dealer.
Utilize the Terminal Repair Kit (J 38125) to achieve an effective wiring repair. The Terminal Repair
Kit has been an essential tool for all GM Dealers since 1987. Replacement terminals and tools for
this kit are available through SPX/Kent Moore. Refer to Corporate Bulletin Number 06-08-45-001
for more information.
The Instruction Manual J 38125-620, which is sent with each new update to the J 38125 Terminal
Repair Kit, also has terminal crimping and terminal removal information.
U.S. Dealers Only - Training courses (including Tech Assists, Emerging Issues, Web, IDL and
Hands-on) are available through the GM Training website. Refer to Resources and then Training
Materials for a complete list of available courses.
Canadian Dealers Only - Refer to the Training section of GM infoNet for a complete list of available
courses and a copy of the J 38125 Terminal Repair Kit Instruction Manual.
Wiring repair information is also available in Service Information (SI). The Wiring Repair section
contains information for the following types of wiring repairs:
- Testing for intermittent conditions and poor conditions
- Flat wire repairs
- GMLAN wiring repairs
- High temperature wiring repairs
- Splicing copper wire using splice clips
- Splicing copper wire using splice sleeves
- Splicing twisted or shielded cable
- Splicing inline harness diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 06-08-45-004 > May > 06 >
Electrical - Instrument Panel & General Wiring Repair > Page 12300
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 >
Electrical - Information For Electrical Ground Repair
Wiring Harness: All Technical Service Bulletins Electrical - Information For Electrical Ground Repair
INFORMATION
Bulletin No.: 10-08-45-001B
Date: October 25, 2010
Subject: Information for Electrical Ground Repair - Use New Replacement Fasteners with
Conductive Finish
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add the 2011 model year and update the Warranty
Information. Please discard Corporate Bulletin Number 10-08-45-001A (Section 08 - Body and
Accessories).
Electrical Ground Repair Overview
Proper electrical system function relies on secure, stable and corrosion-free electrical ground
connections. Loose, stripped, or corroded connections increase the possibility of improper system
function and loss of module communication. These conditions may also lead to unnecessary
repairs and component replacement.
In general, electrical ground connections are accomplished using one, or a combination of the
following attachment methods:
- Welded M6 stud and nut
- Welded M6 nut and bolt
- Welded M8 nut and bolt
Determine which attachment method is used and perform the appropriate or alternative repair as
described in this bulletin.
M6 Weld Stud Replacement
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. Select a location adjacent the damaged or missing M6 ground stud having 20 mm (0.79 in)
clearance behind the panel surface and 20 mm (0.79 in)
clearance surrounding the M6 conductive rivet stud flange.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
3. Drill a 10 mm (0.40 in) diameter hole through the panel.
4. Remove paint and primer from the area surrounding the 10 mm (0.40 in) hole until bare metal is
visible.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 >
Electrical - Information For Electrical Ground Repair > Page 12306
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
5. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
6. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
7. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 8. Ensure the rivet stud is securely fastened, WITHOUT ANY detectable movement. 9.
Completely wrap the threads of the rivet stud with painters tape or equivalent.
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the ground wire terminal and conductive nut to maintain a secure, stable and
corrosion-free electrical ground.
10. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 11. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 12. Remove the painters tape or equivalent from the rivet
stud threads. 13. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 14. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 >
Electrical - Information For Electrical Ground Repair > Page 12307
15. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 16. Install the electrical ground wire terminal to the rivet stud. 17. Select a M6
conductive nut. Refer to the Parts Information section of this bulletin. 18. Install the M6 conductive
nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in).
19. Verify proper system operation.
M6 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M6 weld nut at the electrical ground location is damaged or stripped, a M7 conductive
self-threading bolt may be used to secure the ground
wire terminal.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the weld nut and allow to dry. 3. Remove any loose metal particles from the damaged
or stripped weld nut with a stiff brush. 4. Select a M7 conductive self-threading bolt. Refer to the
Parts Information section of this bulletin 5. Using a small brush, apply Dielectric Lubricant GM P/N
12377900 (Canadian P/N 10953529) to the threads of the M7 conductive self-threading
bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
6. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 7. Install the electrical ground wire terminal to the M7 conductive self-threading bolt.
8. Install the M7 conductive self-threading bolt and:
Tighten Tighten to 9 Nm (80 lb in).
9. Verify proper system operation.
M6 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the electrical ground location is accessible from both sides of the panel, a M6 conductive bolt
and a M6 conductive nut may be used to secure
the electrical ground wire terminal. Refer to the Parts Information section of this bulletin.
2. Select a location adjacent the damaged M6 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 8.5 mm (0.33 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 8.5 mm (0.33 in) hole until bare metal is visible. 6. Select a M6 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M6 conductive bolt to the ground
location.
10. Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M6 conductive nut to the bolt and:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 >
Electrical - Information For Electrical Ground Repair > Page 12308
Tighten Tighten to 8 Nm (71 lb in).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is accessible from both sides of the panel, a M8
conductive bolt and a M8 conductive nut may be
used to secure the electrical ground wire terminal. Refer to the Parts Information section of this
bulletin.
2. Select a location adjacent the M8 weld nut having 20 mm (0.79 in) clearance behind the panel
surface and 20 mm (0.79 in) clearance surrounding
the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 10 mm (0.40 in) hole until bare metal is visible. 6. Select a M8 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M8 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M8 conductive bolt to the ground
location.
10. Select a M8 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M8 conductive nut to the bolt and:
Tighten Tighten to 22 Nm (16 lb ft).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is not accessible from both sides of the panel, a M6
conductive rivet stud and a M6 conductive nut
may be used to secure the electrical ground wire terminal.
2. Select a location adjacent the damaged M8 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the M6 conductive rivet stud flange.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel.
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Chevrolet Workshop Manuals > Starting and Charging > Power and Ground Distribution > Wiring Harness > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 >
Electrical - Information For Electrical Ground Repair > Page 12309
5. Remove paint and primer from the area surrounding the 10 mm (0.40 in) until bare metal is
visible.
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
6. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
7. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
8. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 9. Ensure the new rivet stud is securely fastened, WITHOUT ANY detectable movement.
10. Completely wrap the threads of the rivet stud with painters tape or equivalent.
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Electrical - Information For Electrical Ground Repair > Page 12310
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the electrical ground wire terminal and conductive nut to maintain a secure, stable
and corrosion-free electrical ground.
11. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 12. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 13. Remove the painters tape or equivalent from the rivet
stud threads. 14. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 15. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
16. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 17. Install the electrical ground wire terminal to the M6 conductive rivet stud. 18.
Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 19. Install the M6
conductive nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in)
20. Verify proper system operation.
Parts Information
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
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Electrical - Information For Electrical Ground Repair > Page 12311
For vehicles repaired under warranty, use the table.
Disclaimer
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Information > Technical Service Bulletins > All Other Service Bulletins for Wiring Harness: > 06-08-45-004 > May > 06 >
Electrical - Instrument Panel & General Wiring Repair
Wiring Harness: All Technical Service Bulletins Electrical - Instrument Panel & General Wiring
Repair
Bulletin No.: 06-08-45-004
Date: May 02, 2006
INFORMATION
Subject: Instrument Panel (I/P), Body and General Wiring Harness Repair
Models: 2007 and Prior GM Cars and Trucks 2003-2007 HUMMER H2 2006-2007 HUMMER H3
Important:
A part restriction has been implemented on all Body and I/P harnesses and is being administered
by the PQC. If a body or I/P harness replacement is required, it can take 12-28 weeks for a
harness to be built and delivered to a dealer. The dealer technician is expected to repair any
harness damage as the first and best choice before replacing a harness.
In an effort to standardize repair practices, General Motors is requiring that all wiring harnesses be
repaired instead of replaced. If there is a question concerning which connector and/or terminal you
are working on, refer to the information in the appropriate Connector End Views in SI. The
Instruction Manual J 38125-620, which is sent with each new update of the J 38125 Terminal
Repair Kit, also has terminal crimping and terminal remove information.
Important:
There are some parts in the J 38125 Terminal Repair Kit (i.e. SIR connector CPAs and heat shrink
tube (used in high heat area pigtail replacement) and some TPAs that are not available from
GMSPO. It is vitally important that each update to the J 38125 Terminal Repair Kit be done as soon
as it arrives at the dealer.
Utilize the Terminal Repair Kit (J 38125) to achieve an effective wiring repair. The Terminal Repair
Kit has been an essential tool for all GM Dealers since 1987. Replacement terminals and tools for
this kit are available through SPX/Kent Moore. Refer to Corporate Bulletin Number 06-08-45-001
for more information.
The Instruction Manual J 38125-620, which is sent with each new update to the J 38125 Terminal
Repair Kit, also has terminal crimping and terminal removal information.
U.S. Dealers Only - Training courses (including Tech Assists, Emerging Issues, Web, IDL and
Hands-on) are available through the GM Training website. Refer to Resources and then Training
Materials for a complete list of available courses.
Canadian Dealers Only - Refer to the Training section of GM infoNet for a complete list of available
courses and a copy of the J 38125 Terminal Repair Kit Instruction Manual.
Wiring repair information is also available in Service Information (SI). The Wiring Repair section
contains information for the following types of wiring repairs:
- Testing for intermittent conditions and poor conditions
- Flat wire repairs
- GMLAN wiring repairs
- High temperature wiring repairs
- Splicing copper wire using splice clips
- Splicing copper wire using splice sleeves
- Splicing twisted or shielded cable
- Splicing inline harness diodes
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Electrical - Instrument Panel & General Wiring Repair > Page 12316
Disclaimer
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Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Locations
Power Outlets Components View
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Diagrams > Diagram Information and Instructions
Auxiliary Power Outlet: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Auxiliary Power Outlet: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Diagram Information and Instructions > Page 12414
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Diagram Information and Instructions > Page 12415
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Diagram Information and Instructions > Page 12416
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Diagram Information and Instructions > Page 12417
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Diagram Information and Instructions > Page 12418
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Diagram Information and Instructions > Page 12419
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Diagram Information and Instructions > Page 12420
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Diagram Information and Instructions > Page 12421
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Diagram Information and Instructions > Page 12422
Auxiliary Power Outlet: Connector Views
Auxiliary Power Outlet - 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Diagram Information and Instructions > Page 12423
Auxiliary Power Outlet - 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Page 12424
Auxiliary Power Outlet: Service and Repair
CIGAR LIGHTER RECEPTACLE OR 12-VOLT ACCESSORY POWER RECEPTACLE
REPLACEMENT
TOOLS REQUIRED
J 42059 Cigar Lighter Socket Remover
REMOVAL PROCEDURE
1. Remove the auxiliary power outlet fuse from the fuse block. 2. Remove the receptacle: 1. Look
into the receptacle. There are two 3 mm (0.11 in) tab windows 12 mm (0.47 in) from the front of the
receptacle. The J 42059 pushes the
plastic latches from these tab windows and the receptacle can be pulled straight out.
2. Place one side of the "T" portion of the J 42059 into the tab window. The J 42059 will not fit
straight into the receptacle. Angle the J 42059
slightly for insertion into the receptacle.
3. Insert the other side of the "T" into the opposite tab window.You must move the J 42059 handle
toward horizontal to engage the other tab window. 4. Use the J 42059 to pull the receptacle straight
out.
3. If J 42059 tool fails to release the lighter socket from the retainer, perform the following alternate
method: 1. Insert a small grinding tool with a cutoff wheel into the socket. 2. Remove the plastic
latches in the 3 mm (0.11 in) square windows. 3. Use the J 42059 as directed above to remove the
socket.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Page 12425
1. Route the connector through the retainer. Align the accessory power receptacle retainer to the
slot in the opening. 2. Install the retainer by pressing into place fully seated. 3. Connect the
electrical connector to the receptacle. 4. Align the tabs on the receptacle to the slots in the retainer.
Install the accessory power receptacle by pressing into place until fully seated. 5. Install the
accessory power receptacle fuse.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Auxiliary Power Outlet > Component Information >
Diagrams > Page 12426
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Branching Point > Component Information > Diagrams
SP200
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Electronic Noise Suppressor > Component Information >
Technical Service Bulletins > Customer Interest for Electronic Noise Suppressor: > 07-08-46-002D > Jul > 09 > Audio
System - Noise When Using OnStar(R)
Electronic Noise Suppressor: Customer Interest Audio System - Noise When Using OnStar(R)
TECHNICAL
Bulletin No.: 07-08-46-002D
Date: July 29, 2009
Subject: Audio Whine Noise from Radio Speakers When Using OnStar(R) (Install Noise
Suppression Filter)
Models:
2007-2010 GM Passenger Cars and Trucks (Including Saturn) 2007-2010 HUMMER H2, H3
2007-2009 Saab 9-7X Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update the Warranty Information. Please discard
Corporate Bulletin Number 07-08-46-002C (Section 08 - Body and Accessories).
Condition
Some customers may comment on an audio whine coming from the radio speakers when using the
OnStar(R) system. The amplitude and frequency of the whine will change with an increase or
decrease in engine speed.
Cause
This condition may be caused by electrical noise on the OnStar(R) Vehicle Communication
Interface Module (VCIM) battery feed wire being passed to the microphone output pins at the radio.
Correction
Technicians are to install a noise suppression filter, P/N 1224205, into the OnStar(R) battery
voltage circuit, a few centimeters (inches) from the VCIM. The filter package has three attached
wires - a single yellow wire at one end with a yellow wire and a black wire at the other. Install the
single yellow wire side into the battery voltage circuit towards the VCIM. Install the remaining single
yellow wire into the battery voltage circuit toward the fuse and the black wire to ground.
Important The noise suppression filter is polarity sensitive. The filter is designed to be most
effective when the end with the capacitor ground is connected towards the source of the electrical
noise. Install the filter in this polarity first. If the noise level is still not satisfactory, try disconnecting
the capacitor ground. In some cases, if the first installation does not correct the noise, try reversing
the filter polarity (removing the filter, turning it end for end and then reinstalling it) and grounding
the capacitor lead.
Parts Information
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Electronic Noise Suppressor > Component Information >
Technical Service Bulletins > Customer Interest for Electronic Noise Suppressor: > 07-08-46-002D > Jul > 09 > Audio
System - Noise When Using OnStar(R) > Page 12438
Warranty Information (Saab U.S. Models)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Electronic Noise Suppressor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Electronic Noise Suppressor: > 07-08-46-002D > Jul > 09 >
Audio System - Noise When Using OnStar(R)
Electronic Noise Suppressor: All Technical Service Bulletins Audio System - Noise When Using
OnStar(R)
TECHNICAL
Bulletin No.: 07-08-46-002D
Date: July 29, 2009
Subject: Audio Whine Noise from Radio Speakers When Using OnStar(R) (Install Noise
Suppression Filter)
Models:
2007-2010 GM Passenger Cars and Trucks (Including Saturn) 2007-2010 HUMMER H2, H3
2007-2009 Saab 9-7X Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update the Warranty Information. Please discard
Corporate Bulletin Number 07-08-46-002C (Section 08 - Body and Accessories).
Condition
Some customers may comment on an audio whine coming from the radio speakers when using the
OnStar(R) system. The amplitude and frequency of the whine will change with an increase or
decrease in engine speed.
Cause
This condition may be caused by electrical noise on the OnStar(R) Vehicle Communication
Interface Module (VCIM) battery feed wire being passed to the microphone output pins at the radio.
Correction
Technicians are to install a noise suppression filter, P/N 1224205, into the OnStar(R) battery
voltage circuit, a few centimeters (inches) from the VCIM. The filter package has three attached
wires - a single yellow wire at one end with a yellow wire and a black wire at the other. Install the
single yellow wire side into the battery voltage circuit towards the VCIM. Install the remaining single
yellow wire into the battery voltage circuit toward the fuse and the black wire to ground.
Important The noise suppression filter is polarity sensitive. The filter is designed to be most
effective when the end with the capacitor ground is connected towards the source of the electrical
noise. Install the filter in this polarity first. If the noise level is still not satisfactory, try disconnecting
the capacitor ground. In some cases, if the first installation does not correct the noise, try reversing
the filter polarity (removing the filter, turning it end for end and then reinstalling it) and grounding
the capacitor lead.
Parts Information
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Electronic Noise Suppressor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Electronic Noise Suppressor: > 07-08-46-002D > Jul > 09 >
Audio System - Noise When Using OnStar(R) > Page 12444
Warranty Information (Saab U.S. Models)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Technical Service
Bulletins > Electrical - Aftermarket Fuse Warning
Fuse: Technical Service Bulletins Electrical - Aftermarket Fuse Warning
Bulletin No.: 07-08-45-002
Date: September 05, 2007
ADVANCED SERVICE INFORMATION
Subject: Service Alert: Concerns With Aftermarket Fuses in GM Vehicles
Models: 2008 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2008 and
Prior HUMMER H2, H3 2008 and Prior Saab 9-7X
Concerns with Harbor Freight Tools "Storehouse" Branded Blade Type Fuses
General Motors has become aware of a fuse recall by Harbor Freight Tools/Storehouse for a
variety of aftermarket fuses. In two cases, these fuses have not provided protection for the wiring
system of the vehicles they were customer installed in.
Upon testing the 15 amp version, it was found that the fuse still would not "open" when shorted
directly across the battery terminals.
How to Identify These Fuses
Packed in a 120 piece set, the fuse has a translucent, hard plastic, blue body with the amperage
stamped into the top. There are no white painted numbers on the fuse to indicate amperage. There
are no identifying marks on the fuse to tell who is making it. The fuses are known to be distributed
by Harbor Freight Tools but there may be other marketers, and packaging of this style of fuse. It
would be prudent to replace these fuses if found in a customers vehicle. Likewise, if wiring
overheating is found you should check the fuse panel for the presence of this style of fuse.
All GM dealers should use genuine GM fuses on the vehicles they service. You should also
encourage the use of GM fuses to your customers to assure they are getting the required electrical
system protection. GM has no knowledge of any concerns with other aftermarket fuses. If
additional information becomes available, this bulletin will be updated.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Locations > I/P Fuse
Block
Fuse: Locations I/P Fuse Block
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Locations > I/P Fuse
Block > Page 12451
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Locations > I/P Fuse
Block > Page 12452
Fuse: Locations Underhood Fuse Block
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Locations > I/P Fuse
Block > Page 12453
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Locations > I/P Fuse
Block > Page 12454
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Locations > I/P Fuse
Block > Page 12455
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions
Fuse: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions > Page 12458
Electrical Symbols Part 2
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Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions > Page 12459
Electrical Symbols Part 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions > Page 12460
Electrical Symbols Part 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions > Page 12461
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions > Page 12462
Electrical Symbols Part 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions > Page 12463
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions > Page 12464
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions > Page 12465
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions > Page 12466
Fuse: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions > Page 12467
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse > Component Information > Diagrams > Diagram
Information and Instructions > Page 12468
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Information and Instructions > Page 12545
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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Information and Instructions > Page 12546
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Information and Instructions > Page 12548
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Information and Instructions > Page 12550
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Information and Instructions > Page 12552
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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Information and Instructions > Page 12553
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions
Fuse Block: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Fuse Block: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Diagram Information and Instructions > Page 12625
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12656
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12657
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12658
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12659
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12660
Fuse Block: Connector Views
Underhood Fuse Block
Fuse Block Underhood - C1 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12661
Fuse Block Underhood - C1 (Pin 16 To 46)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12662
Fuse Block Underhood - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12663
Fuse Block Underhood - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12664
Fuse Block Underhood - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12665
Fuse Block Underhood - C3 (Pin 1 To 14)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12666
Fuse Block Underhood - C3 (Pin 15 To 22)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12667
Fuse Block Underhood - C3 (Pin 1 To 14)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12668
Fuse Block Underhood - C3 (Pin 15 To 22)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12669
Fuse Block - Underhood (C1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12670
Fuse Block - Underhood (C1) (Pin 14 To 46)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12671
Fuse Block - Underhood (C1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12672
Fuse Block - Underhood (C2) (Pin 5 To C)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12673
Fuse Block - Underhood (C3) (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12674
Fuse Block - Underhood (C3) (Pin 16 To 22)
I/P Fuse Block
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12675
Fuse Block I/P - C3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12676
Fuse Block I/P - C3 (Pin 1 To 43)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12677
Fuse Block I/P - C3 (Pin 45 To C)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12678
Fuse Block I/P - C1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12679
Fuse Block I/P - C1 (Pin 14 To 40)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12680
Fuse Block I/P - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12681
Fuse Block I/P (C1) (Pin 1 To 13)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12682
Fuse Block I/P (C1) (Pin 14 To 46)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12683
Fuse Block I/P (C2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12684
Fuse Block I/P (C3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12685
Fuse Block I/P (C3) (Pin 1 To 46)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Diagrams >
Diagram Information and Instructions > Page 12686
Fuse Block I/P (C3) (Pin 47 To C)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Service and
Repair > Instrument Panel Electrical Center or Junction Block Replacement
Fuse Block: Service and Repair Instrument Panel Electrical Center or Junction Block Replacement
INSTRUMENT PANEL ELECTRICAL CENTER OR JUNCTION BLOCK REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: Record all preset radio stations.
Turn the ignition OFF.
2. Remove the screws from the battery cooling box. Remove the battery cover. 3. Disconnect the
negative battery cable. 4. Disconnect the positive battery cable. 5. Remove the console.
6. Remove the nut holding the following fuse block connectors to the back of the I/P fuse block (4):
- The body 68-way connector (1)
- The I/P 68-way connector (2)
- The I/P 24-way connector (3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Service and
Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 12689
7. Remove the bolt holding the fuse block into place. 8. Remove the ground wire (1). 9. Remove
the fuse block.
INSTALLATION PROCEDURE
1. NOTE: Refer to Fastener Notice.
Install the fuse block and attach the ground wire (1) and attach the bolt.
Tighten the bolt to 10 N.m (89 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Service and
Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 12690
2. Connect the harness connectors to the back of the I/P fuse block (4).
Tighten the connectors to 4 N.m (35 lb in).
3. Install the console. 4. Connect the positive battery cable.
Tighten the bolt to 17 N.m (13 lb ft).
5. Connect the negative battery cable.
Tighten the bolt to 17 N.m (13 lb ft).
6. Install the battery cooling box cover and install the screws.
Tighten the screws to 2 N.m (18 lb in).
7. Set the radio stations to the preset selections.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Service and
Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 12691
Fuse Block: Service and Repair Underhood Electrical Center or Junction Block Replacement
UNDERHOOD ELECTRICAL CENTER OR JUNCTION BLOCK REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the negative battery cable.
2. Remove the underhood accessory wiring junction block cover. 3. Remove the nut at the end of
the fuse block and remove both the positive battery cable and the EPS cable.
4. Loosen the bolts (1) on the top of the fuse block until the block can be lifted off the connectors. 5.
Remove the I/P connectors (2).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Service and
Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 12692
6. IMPORTANT: All 3 fuse block 68-way connectors are held into place to the fuse block case by
push-in retainers.
Pull up on each of the following 68-way connectors until they come out. 1. Fuse block case (1) 2.
Forward lamp 68-way connector (2) 3. Engine 68-way connector (3) 4. I/P 68-way connector (4)
INSTALLATION PROCEDURE
1. Install each of the following 68-way connectors into its proper location.
- Fuse block case (1)
- Forward lamp 68-way connector (2)
- Engine 68-way connector (3)
- I/P 68-way connector (4)
2. Push down on each connector until it is fully secured into the fuse block.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Fuse Block > Component Information > Service and
Repair > Instrument Panel Electrical Center or Junction Block Replacement > Page 12693
3. Connect the I/P connectors (2).
4. NOTE: Refer to Fastener Notice
Tighten the bolts (1) on the top of the fuse block.
Tighten the underhood accessory wiring junction block harness retaining bolts (1) to 4 N.m (35 lb
in).
5. Reconnect the positive battery cable and EPS at the end of the fuse block with the nut.
Tighten the positive battery cable nut to 17 N.m (13 lb ft).
6. Install the fuse box cover. 7. Connect the negative battery cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Grounding Point > Component Information > Technical
Service Bulletins > Electrical - Information For Electrical Ground Repair
Grounding Point: Technical Service Bulletins Electrical - Information For Electrical Ground Repair
INFORMATION
Bulletin No.: 10-08-45-001B
Date: October 25, 2010
Subject: Information for Electrical Ground Repair - Use New Replacement Fasteners with
Conductive Finish
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add the 2011 model year and update the Warranty
Information. Please discard Corporate Bulletin Number 10-08-45-001A (Section 08 - Body and
Accessories).
Electrical Ground Repair Overview
Proper electrical system function relies on secure, stable and corrosion-free electrical ground
connections. Loose, stripped, or corroded connections increase the possibility of improper system
function and loss of module communication. These conditions may also lead to unnecessary
repairs and component replacement.
In general, electrical ground connections are accomplished using one, or a combination of the
following attachment methods:
- Welded M6 stud and nut
- Welded M6 nut and bolt
- Welded M8 nut and bolt
Determine which attachment method is used and perform the appropriate or alternative repair as
described in this bulletin.
M6 Weld Stud Replacement
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. Select a location adjacent the damaged or missing M6 ground stud having 20 mm (0.79 in)
clearance behind the panel surface and 20 mm (0.79 in)
clearance surrounding the M6 conductive rivet stud flange.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
3. Drill a 10 mm (0.40 in) diameter hole through the panel.
4. Remove paint and primer from the area surrounding the 10 mm (0.40 in) hole until bare metal is
visible.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Grounding Point > Component Information > Technical
Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12698
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
5. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
6. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
7. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 8. Ensure the rivet stud is securely fastened, WITHOUT ANY detectable movement. 9.
Completely wrap the threads of the rivet stud with painters tape or equivalent.
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the ground wire terminal and conductive nut to maintain a secure, stable and
corrosion-free electrical ground.
10. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 11. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 12. Remove the painters tape or equivalent from the rivet
stud threads. 13. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 14. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Grounding Point > Component Information > Technical
Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12699
15. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 16. Install the electrical ground wire terminal to the rivet stud. 17. Select a M6
conductive nut. Refer to the Parts Information section of this bulletin. 18. Install the M6 conductive
nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in).
19. Verify proper system operation.
M6 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M6 weld nut at the electrical ground location is damaged or stripped, a M7 conductive
self-threading bolt may be used to secure the ground
wire terminal.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the weld nut and allow to dry. 3. Remove any loose metal particles from the damaged
or stripped weld nut with a stiff brush. 4. Select a M7 conductive self-threading bolt. Refer to the
Parts Information section of this bulletin 5. Using a small brush, apply Dielectric Lubricant GM P/N
12377900 (Canadian P/N 10953529) to the threads of the M7 conductive self-threading
bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
6. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 7. Install the electrical ground wire terminal to the M7 conductive self-threading bolt.
8. Install the M7 conductive self-threading bolt and:
Tighten Tighten to 9 Nm (80 lb in).
9. Verify proper system operation.
M6 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the electrical ground location is accessible from both sides of the panel, a M6 conductive bolt
and a M6 conductive nut may be used to secure
the electrical ground wire terminal. Refer to the Parts Information section of this bulletin.
2. Select a location adjacent the damaged M6 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 8.5 mm (0.33 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 8.5 mm (0.33 in) hole until bare metal is visible. 6. Select a M6 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M6 conductive bolt to the ground
location.
10. Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M6 conductive nut to the bolt and:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Grounding Point > Component Information > Technical
Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12700
Tighten Tighten to 8 Nm (71 lb in).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is accessible from both sides of the panel, a M8
conductive bolt and a M8 conductive nut may be
used to secure the electrical ground wire terminal. Refer to the Parts Information section of this
bulletin.
2. Select a location adjacent the M8 weld nut having 20 mm (0.79 in) clearance behind the panel
surface and 20 mm (0.79 in) clearance surrounding
the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 10 mm (0.40 in) hole until bare metal is visible. 6. Select a M8 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M8 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M8 conductive bolt to the ground
location.
10. Select a M8 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M8 conductive nut to the bolt and:
Tighten Tighten to 22 Nm (16 lb ft).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is not accessible from both sides of the panel, a M6
conductive rivet stud and a M6 conductive nut
may be used to secure the electrical ground wire terminal.
2. Select a location adjacent the damaged M8 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the M6 conductive rivet stud flange.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Grounding Point > Component Information > Technical
Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12701
5. Remove paint and primer from the area surrounding the 10 mm (0.40 in) until bare metal is
visible.
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
6. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
7. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
8. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 9. Ensure the new rivet stud is securely fastened, WITHOUT ANY detectable movement.
10. Completely wrap the threads of the rivet stud with painters tape or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Grounding Point > Component Information > Technical
Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12702
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the electrical ground wire terminal and conductive nut to maintain a secure, stable
and corrosion-free electrical ground.
11. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 12. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 13. Remove the painters tape or equivalent from the rivet
stud threads. 14. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 15. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
16. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 17. Install the electrical ground wire terminal to the M6 conductive rivet stud. 18.
Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 19. Install the M6
conductive nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in)
20. Verify proper system operation.
Parts Information
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Grounding Point > Component Information > Technical
Service Bulletins > Electrical - Information For Electrical Ground Repair > Page 12703
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Technical Service Bulletins > Customer Interest for Multiple Junction Connector: > 07-06-04-019D > Jun > 10 > Electrical Intermittent MIL/DTC P2138/Reduced Power
Multiple Junction Connector: Customer Interest Electrical - Intermittent MIL/DTC P2138/Reduced
Power
TECHNICAL
Bulletin No.: 07-06-04-019D
Date: June 28, 2010
Subject: Intermittent Malfunction Indicator Lamp (MIL) Illuminated, DTC P2138 with Reduced
Engine Power (Repair Instrument Panel (IP) to Body Harness Connector)
Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years and warranty information.
Please discard Corporate Bulletin Number 07-06-04-019C (Section 06 - Engine/Propulsion
System)
Condition
- Some customers may comment on an intermittent malfunction indicator lamp (MIL) being
Illuminated with a message or an indicator that displays Reduced Engine Power.
- The technician may observe on a scan tool DTC P2138 - Accelerator Pedal Position (APP)
Sensor 1-2 Correlation set as Current or in History.
Cause
This condition may be caused by water intrusion into the instrument panel (IP) to body harness
connector, which carries the APP sensor signals to the ECM/PCM. This water intrusion results in a
voltage difference between APP Sensor 1 and APP Sensor 2 that exceeds a predetermined value
for more than a calibrated period of time, setting P2138.
Correction
Note Aftermarket equipment can generate DTC P2138 and/or other DTCs.
1. Verify that aftermarket equipment is not electrically connected to any of the APP sensor signal or
low reference circuits or to any other ECM/PCM
5V reference or low reference circuits. Refer to Checking Aftermarket Accessories in SI.
2. Perform the Diagnostic System Check - Vehicle.
‹› If any 5V reference DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. ‹› If any
5V reference DTCs are not set, proceed to Step 3.
3. Locate the IP to body harness connector, which may be located in and around the left hand kick
panel area or inside the IP. Depending on the
vehicle and model year, refer to Wiring Systems or Power and Signal Distribution in SI.
Note Some examples of potential water leaks are: A-pillar seals, sunroof drain lines (if equipped)
and windshield/cowl sealing.
4. Inspect for a water leak in the area. If necessary use a water hose to determine the source of the
leak. Refer to General Information > Water Leaks
in SI.
‹› If a water leak is observed, repair as necessary. Verify the effectiveness of the repair.
5. Inspect the IP to body harness connector terminals for corrosion and debris. Refer to Testing for
Intermittent Conditions and Poor Connections in
SI.
‹› If any corrosion and/or debris is observed, repair as necessary.
6. After completing the repair, verify the proper operation of the system. Depending on the vehicle
and model year, perform the Diagnostic Repair
Verification procedure or refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Technical Service Bulletins > Customer Interest for Multiple Junction Connector: > 07-06-04-019D > Jun > 10 > Electrical Intermittent MIL/DTC P2138/Reduced Power > Page 12712
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the appropriate labor operation for the source of the
water leak
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Multiple Junction Connector: > 07-06-04-019D > Jun > 10 >
Electrical - Intermittent MIL/DTC P2138/Reduced Power
Multiple Junction Connector: All Technical Service Bulletins Electrical - Intermittent MIL/DTC
P2138/Reduced Power
TECHNICAL
Bulletin No.: 07-06-04-019D
Date: June 28, 2010
Subject: Intermittent Malfunction Indicator Lamp (MIL) Illuminated, DTC P2138 with Reduced
Engine Power (Repair Instrument Panel (IP) to Body Harness Connector)
Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years and warranty information.
Please discard Corporate Bulletin Number 07-06-04-019C (Section 06 - Engine/Propulsion
System)
Condition
- Some customers may comment on an intermittent malfunction indicator lamp (MIL) being
Illuminated with a message or an indicator that displays Reduced Engine Power.
- The technician may observe on a scan tool DTC P2138 - Accelerator Pedal Position (APP)
Sensor 1-2 Correlation set as Current or in History.
Cause
This condition may be caused by water intrusion into the instrument panel (IP) to body harness
connector, which carries the APP sensor signals to the ECM/PCM. This water intrusion results in a
voltage difference between APP Sensor 1 and APP Sensor 2 that exceeds a predetermined value
for more than a calibrated period of time, setting P2138.
Correction
Note Aftermarket equipment can generate DTC P2138 and/or other DTCs.
1. Verify that aftermarket equipment is not electrically connected to any of the APP sensor signal or
low reference circuits or to any other ECM/PCM
5V reference or low reference circuits. Refer to Checking Aftermarket Accessories in SI.
2. Perform the Diagnostic System Check - Vehicle.
‹› If any 5V reference DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. ‹› If any
5V reference DTCs are not set, proceed to Step 3.
3. Locate the IP to body harness connector, which may be located in and around the left hand kick
panel area or inside the IP. Depending on the
vehicle and model year, refer to Wiring Systems or Power and Signal Distribution in SI.
Note Some examples of potential water leaks are: A-pillar seals, sunroof drain lines (if equipped)
and windshield/cowl sealing.
4. Inspect for a water leak in the area. If necessary use a water hose to determine the source of the
leak. Refer to General Information > Water Leaks
in SI.
‹› If a water leak is observed, repair as necessary. Verify the effectiveness of the repair.
5. Inspect the IP to body harness connector terminals for corrosion and debris. Refer to Testing for
Intermittent Conditions and Poor Connections in
SI.
‹› If any corrosion and/or debris is observed, repair as necessary.
6. After completing the repair, verify the proper operation of the system. Depending on the vehicle
and model year, perform the Diagnostic Repair
Verification procedure or refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Multiple Junction Connector: > 07-06-04-019D > Jun > 10 >
Electrical - Intermittent MIL/DTC P2138/Reduced Power > Page 12718
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the appropriate labor operation for the source of the
water leak
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199
Multiple Junction Connector: Diagrams C100 - C199
C101 (Pin 1 To 8)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12721
C101 (Pin 8)
C102 (Pin 1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12722
C103 (Pin A To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12723
C104 (Pin A To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12724
C105 (Pin A To P)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12725
C105 (Pin R)
C106 (Pin 1 To 12)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12726
C108 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12727
Multiple Junction Connector: Diagrams C200 - C299
C203 (Pin 1 To 16)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12728
C205 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12729
C206 (Pin 1 To 8)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12730
C206 (Pin 9 To 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12731
C210 (Pin 1 To 12)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12732
C210 (Pin 13 To 26)
C212 (Pin 1 To 5)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12733
C213 (Pin 2 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12734
C214 (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12735
C214 (-ASF) (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12736
C216 (Pin A To R)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12737
C204 (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12738
C218 (-ASF) (Pin A 1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12739
C276 (Pin C To K)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12740
C219 (Pin 1 To 3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12741
Multiple Junction Connector: Diagrams C300 - C399
C305(Pin 2 To 7)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12742
C308 (-KA1) (Pin A To D)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12743
C309 (KA1) (Pin A To G) (Pin A To G)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12744
C309 (KA1) (Pin H To L)
C309 (-KA1) (Pin A To E)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12745
C310 (Pin A To K)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12746
Multiple Junction Connector: Diagrams C400 - C499
C400 (Pin 1 To 7)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12747
C400 (Pin 8 To 10)
C402
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12748
C404
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12749
C405 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12750
C406 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12751
C410 (Pin 1 To 4)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12752
C407 (Pin 1 To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12753
C409 (Pin 1 To 4)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12754
C411 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12755
C401
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12756
C412 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12757
C414(Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12758
C408 (Pin 1 To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12759
Multiple Junction Connector: Diagrams
C101 (Pin 1 To 8)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12760
C101 (Pin 8)
C102 (Pin 1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12761
C103 (Pin A To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12762
C104 (Pin A To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12763
C105 (Pin A To P)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12764
C105 (Pin R)
C106 (Pin 1 To 12)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12765
C108 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12766
C203 (Pin 1 To 16)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12767
C205 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12768
C206 (Pin 1 To 8)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12769
C206 (Pin 9 To 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12770
C210 (Pin 1 To 12)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12771
C210 (Pin 13 To 26)
C212 (Pin 1 To 5)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12772
C213 (Pin 2 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12773
C214 (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12774
C214 (-ASF) (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12775
C216 (Pin A To R)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12776
C204 (Pin A1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12777
C218 (-ASF) (Pin A 1 To B2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12778
C276 (Pin C To K)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12779
C219 (Pin 1 To 3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12780
C305(Pin 2 To 7)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12781
C308 (-KA1) (Pin A To D)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12782
C309 (KA1) (Pin A To G) (Pin A To G)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12783
C309 (KA1) (Pin H To L)
C309 (-KA1) (Pin A To E)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12784
C310 (Pin A To K)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12785
C400 (Pin 1 To 7)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12786
C400 (Pin 8 To 10)
C402
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12787
C404
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12788
C405 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12789
C406 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12790
C410 (Pin 1 To 4)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12791
C407 (Pin 1 To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12792
C409 (Pin 1 To 4)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12793
C411 (Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12794
C401
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12795
C412 (Pin 1 To 6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12796
C414(Pin 1 To 2)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12797
C408 (Pin 1 To B)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12798
C500 (Pin 3 To 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12799
C600 (Pin 3 To 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12800
C700 (Pin A1 To C8)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Multiple Junction Connector > Component Information >
Diagrams > C100 - C199 > Page 12801
C800 (Pin A 1 To C6)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Power Distribution Relay > Component Information >
Service and Repair > Relay Replacement (Attached to Wire Harness)
Power Distribution Relay: Service and Repair Relay Replacement (Attached to Wire Harness)
RELAY REPLACEMENT (ATTACHED TO WIRE HARNESS)
REMOVAL PROCEDURE
1. Locate the relay. 2. Remove any fasteners which hold the relay in place. 3. Remove any
connector position assurance (CPA) devices or secondary locks.
4. IMPORTANT: Use care when removing a relay in a wiring harness when the relay is secured by
fasteners or tape.
Separate the relay (1) from the wire harness connector (2).
INSTALLATION PROCEDURE
1. Connect the relay (1) to the wire harness connector (2). 2. Install any connector position
assurance (CPA) devices or secondary locks. 3. Install the relay using any fasteners or tape that
originally held the relay in place.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Power Distribution Relay > Component Information >
Service and Repair > Relay Replacement (Attached to Wire Harness) > Page 12806
Power Distribution Relay: Service and Repair Relay Replacement (Within an Electrical Center)
RELAY REPLACEMENT (WITHIN AN ELECTRICAL CENTER)
TOOLS REQUIRED
J 43244 Relay Puller Pliers
REMOVAL PROCEDURE
1. Remove the electrical center cover. 2. Locate the relay.
3. IMPORTANT:
- Always note the orientation of the relay.
- Ensure that the electrical center is secure, as not to put added stress on the wires or terminals.
Using the J 43244 (1) position the tool on opposing corners of the relay (2).
4. NOTE: Use J43244 to pull the relay straight out from the electrical center terminals. The use of
pliers or a flat bladed tool could damage the
electrical center.
Remove the relay (2) from the electrical center.
INSTALLATION PROCEDURE
1. Install the relay (2) in the same position as removed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Power Distribution Relay > Component Information >
Service and Repair > Relay Replacement (Attached to Wire Harness) > Page 12807
2. Install the electrical center cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Relays and Modules - Power and Ground Distribution >
Power Distribution Relay > Component Information > Service and Repair > Relay Replacement (Attached to Wire Harness)
Power Distribution Relay: Service and Repair Relay Replacement (Attached to Wire Harness)
RELAY REPLACEMENT (ATTACHED TO WIRE HARNESS)
REMOVAL PROCEDURE
1. Locate the relay. 2. Remove any fasteners which hold the relay in place. 3. Remove any
connector position assurance (CPA) devices or secondary locks.
4. IMPORTANT: Use care when removing a relay in a wiring harness when the relay is secured by
fasteners or tape.
Separate the relay (1) from the wire harness connector (2).
INSTALLATION PROCEDURE
1. Connect the relay (1) to the wire harness connector (2). 2. Install any connector position
assurance (CPA) devices or secondary locks. 3. Install the relay using any fasteners or tape that
originally held the relay in place.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Relays and Modules - Power and Ground Distribution >
Power Distribution Relay > Component Information > Service and Repair > Relay Replacement (Attached to Wire Harness)
> Page 12813
Power Distribution Relay: Service and Repair Relay Replacement (Within an Electrical Center)
RELAY REPLACEMENT (WITHIN AN ELECTRICAL CENTER)
TOOLS REQUIRED
J 43244 Relay Puller Pliers
REMOVAL PROCEDURE
1. Remove the electrical center cover. 2. Locate the relay.
3. IMPORTANT:
- Always note the orientation of the relay.
- Ensure that the electrical center is secure, as not to put added stress on the wires or terminals.
Using the J 43244 (1) position the tool on opposing corners of the relay (2).
4. NOTE: Use J43244 to pull the relay straight out from the electrical center terminals. The use of
pliers or a flat bladed tool could damage the
electrical center.
Remove the relay (2) from the electrical center.
INSTALLATION PROCEDURE
1. Install the relay (2) in the same position as removed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Relays and Modules - Power and Ground Distribution >
Power Distribution Relay > Component Information > Service and Repair > Relay Replacement (Attached to Wire Harness)
> Page 12814
2. Install the electrical center cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > Customer Interest: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control
Modules
Wiring Harness: Customer Interest Electrical - MIL ON/DTC's Set By Various Control Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > Customer Interest: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control
Modules > Page 12823
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > Customer Interest: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control
Modules > Page 12824
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > Customer Interest: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control
Modules > Page 12825
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > Customer Interest: > 07-06-04-019D > Jun > 10 > Electrical - Intermittent MIL/DTC P2138/Reduced
Power
Wiring Harness: Customer Interest Electrical - Intermittent MIL/DTC P2138/Reduced Power
TECHNICAL
Bulletin No.: 07-06-04-019D
Date: June 28, 2010
Subject: Intermittent Malfunction Indicator Lamp (MIL) Illuminated, DTC P2138 with Reduced
Engine Power (Repair Instrument Panel (IP) to Body Harness Connector)
Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years and warranty information.
Please discard Corporate Bulletin Number 07-06-04-019C (Section 06 - Engine/Propulsion
System)
Condition
- Some customers may comment on an intermittent malfunction indicator lamp (MIL) being
Illuminated with a message or an indicator that displays Reduced Engine Power.
- The technician may observe on a scan tool DTC P2138 - Accelerator Pedal Position (APP)
Sensor 1-2 Correlation set as Current or in History.
Cause
This condition may be caused by water intrusion into the instrument panel (IP) to body harness
connector, which carries the APP sensor signals to the ECM/PCM. This water intrusion results in a
voltage difference between APP Sensor 1 and APP Sensor 2 that exceeds a predetermined value
for more than a calibrated period of time, setting P2138.
Correction
Note Aftermarket equipment can generate DTC P2138 and/or other DTCs.
1. Verify that aftermarket equipment is not electrically connected to any of the APP sensor signal or
low reference circuits or to any other ECM/PCM
5V reference or low reference circuits. Refer to Checking Aftermarket Accessories in SI.
2. Perform the Diagnostic System Check - Vehicle.
‹› If any 5V reference DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. ‹› If any
5V reference DTCs are not set, proceed to Step 3.
3. Locate the IP to body harness connector, which may be located in and around the left hand kick
panel area or inside the IP. Depending on the
vehicle and model year, refer to Wiring Systems or Power and Signal Distribution in SI.
Note Some examples of potential water leaks are: A-pillar seals, sunroof drain lines (if equipped)
and windshield/cowl sealing.
4. Inspect for a water leak in the area. If necessary use a water hose to determine the source of the
leak. Refer to General Information > Water Leaks
in SI.
‹› If a water leak is observed, repair as necessary. Verify the effectiveness of the repair.
5. Inspect the IP to body harness connector terminals for corrosion and debris. Refer to Testing for
Intermittent Conditions and Poor Connections in
SI.
‹› If any corrosion and/or debris is observed, repair as necessary.
6. After completing the repair, verify the proper operation of the system. Depending on the vehicle
and model year, perform the Diagnostic Repair
Verification procedure or refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > Customer Interest: > 07-06-04-019D > Jun > 10 > Electrical - Intermittent MIL/DTC P2138/Reduced
Power > Page 12830
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the appropriate labor operation for the source of the
water leak
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 09-06-03-004D > Dec > 10 > Electrical - MIL
ON/DTC's Set By Various Control Modules
Wiring Harness: All Technical Service Bulletins Electrical - MIL ON/DTC's Set By Various Control
Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 09-06-03-004D > Dec > 10 > Electrical - MIL
ON/DTC's Set By Various Control Modules > Page 12836
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 09-06-03-004D > Dec > 10 > Electrical - MIL
ON/DTC's Set By Various Control Modules > Page 12837
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 09-06-03-004D > Dec > 10 > Electrical - MIL
ON/DTC's Set By Various Control Modules > Page 12838
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information
For Electrical Ground Repair
Wiring Harness: All Technical Service Bulletins Electrical - Information For Electrical Ground Repair
INFORMATION
Bulletin No.: 10-08-45-001B
Date: October 25, 2010
Subject: Information for Electrical Ground Repair - Use New Replacement Fasteners with
Conductive Finish
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add the 2011 model year and update the Warranty
Information. Please discard Corporate Bulletin Number 10-08-45-001A (Section 08 - Body and
Accessories).
Electrical Ground Repair Overview
Proper electrical system function relies on secure, stable and corrosion-free electrical ground
connections. Loose, stripped, or corroded connections increase the possibility of improper system
function and loss of module communication. These conditions may also lead to unnecessary
repairs and component replacement.
In general, electrical ground connections are accomplished using one, or a combination of the
following attachment methods:
- Welded M6 stud and nut
- Welded M6 nut and bolt
- Welded M8 nut and bolt
Determine which attachment method is used and perform the appropriate or alternative repair as
described in this bulletin.
M6 Weld Stud Replacement
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. Select a location adjacent the damaged or missing M6 ground stud having 20 mm (0.79 in)
clearance behind the panel surface and 20 mm (0.79 in)
clearance surrounding the M6 conductive rivet stud flange.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
3. Drill a 10 mm (0.40 in) diameter hole through the panel.
4. Remove paint and primer from the area surrounding the 10 mm (0.40 in) hole until bare metal is
visible.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information
For Electrical Ground Repair > Page 12843
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
5. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
6. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
7. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 8. Ensure the rivet stud is securely fastened, WITHOUT ANY detectable movement. 9.
Completely wrap the threads of the rivet stud with painters tape or equivalent.
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the ground wire terminal and conductive nut to maintain a secure, stable and
corrosion-free electrical ground.
10. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 11. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 12. Remove the painters tape or equivalent from the rivet
stud threads. 13. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 14. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information
For Electrical Ground Repair > Page 12844
15. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 16. Install the electrical ground wire terminal to the rivet stud. 17. Select a M6
conductive nut. Refer to the Parts Information section of this bulletin. 18. Install the M6 conductive
nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in).
19. Verify proper system operation.
M6 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M6 weld nut at the electrical ground location is damaged or stripped, a M7 conductive
self-threading bolt may be used to secure the ground
wire terminal.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the weld nut and allow to dry. 3. Remove any loose metal particles from the damaged
or stripped weld nut with a stiff brush. 4. Select a M7 conductive self-threading bolt. Refer to the
Parts Information section of this bulletin 5. Using a small brush, apply Dielectric Lubricant GM P/N
12377900 (Canadian P/N 10953529) to the threads of the M7 conductive self-threading
bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
6. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 7. Install the electrical ground wire terminal to the M7 conductive self-threading bolt.
8. Install the M7 conductive self-threading bolt and:
Tighten Tighten to 9 Nm (80 lb in).
9. Verify proper system operation.
M6 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the electrical ground location is accessible from both sides of the panel, a M6 conductive bolt
and a M6 conductive nut may be used to secure
the electrical ground wire terminal. Refer to the Parts Information section of this bulletin.
2. Select a location adjacent the damaged M6 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 8.5 mm (0.33 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 8.5 mm (0.33 in) hole until bare metal is visible. 6. Select a M6 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M6 conductive bolt to the ground
location.
10. Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M6 conductive nut to the bolt and:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information
For Electrical Ground Repair > Page 12845
Tighten Tighten to 8 Nm (71 lb in).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is accessible from both sides of the panel, a M8
conductive bolt and a M8 conductive nut may be
used to secure the electrical ground wire terminal. Refer to the Parts Information section of this
bulletin.
2. Select a location adjacent the M8 weld nut having 20 mm (0.79 in) clearance behind the panel
surface and 20 mm (0.79 in) clearance surrounding
the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 10 mm (0.40 in) hole until bare metal is visible. 6. Select a M8 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M8 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M8 conductive bolt to the ground
location.
10. Select a M8 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M8 conductive nut to the bolt and:
Tighten Tighten to 22 Nm (16 lb ft).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is not accessible from both sides of the panel, a M6
conductive rivet stud and a M6 conductive nut
may be used to secure the electrical ground wire terminal.
2. Select a location adjacent the damaged M8 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the M6 conductive rivet stud flange.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information
For Electrical Ground Repair > Page 12846
5. Remove paint and primer from the area surrounding the 10 mm (0.40 in) until bare metal is
visible.
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
6. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
7. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
8. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 9. Ensure the new rivet stud is securely fastened, WITHOUT ANY detectable movement.
10. Completely wrap the threads of the rivet stud with painters tape or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information
For Electrical Ground Repair > Page 12847
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the electrical ground wire terminal and conductive nut to maintain a secure, stable
and corrosion-free electrical ground.
11. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 12. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 13. Remove the painters tape or equivalent from the rivet
stud threads. 14. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 15. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
16. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 17. Install the electrical ground wire terminal to the M6 conductive rivet stud. 18.
Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 19. Install the M6
conductive nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in)
20. Verify proper system operation.
Parts Information
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information
For Electrical Ground Repair > Page 12848
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 07-06-04-019D > Jun > 10 > Electrical - Intermittent
MIL/DTC P2138/Reduced Power
Wiring Harness: All Technical Service Bulletins Electrical - Intermittent MIL/DTC P2138/Reduced
Power
TECHNICAL
Bulletin No.: 07-06-04-019D
Date: June 28, 2010
Subject: Intermittent Malfunction Indicator Lamp (MIL) Illuminated, DTC P2138 with Reduced
Engine Power (Repair Instrument Panel (IP) to Body Harness Connector)
Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years and warranty information.
Please discard Corporate Bulletin Number 07-06-04-019C (Section 06 - Engine/Propulsion
System)
Condition
- Some customers may comment on an intermittent malfunction indicator lamp (MIL) being
Illuminated with a message or an indicator that displays Reduced Engine Power.
- The technician may observe on a scan tool DTC P2138 - Accelerator Pedal Position (APP)
Sensor 1-2 Correlation set as Current or in History.
Cause
This condition may be caused by water intrusion into the instrument panel (IP) to body harness
connector, which carries the APP sensor signals to the ECM/PCM. This water intrusion results in a
voltage difference between APP Sensor 1 and APP Sensor 2 that exceeds a predetermined value
for more than a calibrated period of time, setting P2138.
Correction
Note Aftermarket equipment can generate DTC P2138 and/or other DTCs.
1. Verify that aftermarket equipment is not electrically connected to any of the APP sensor signal or
low reference circuits or to any other ECM/PCM
5V reference or low reference circuits. Refer to Checking Aftermarket Accessories in SI.
2. Perform the Diagnostic System Check - Vehicle.
‹› If any 5V reference DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. ‹› If any
5V reference DTCs are not set, proceed to Step 3.
3. Locate the IP to body harness connector, which may be located in and around the left hand kick
panel area or inside the IP. Depending on the
vehicle and model year, refer to Wiring Systems or Power and Signal Distribution in SI.
Note Some examples of potential water leaks are: A-pillar seals, sunroof drain lines (if equipped)
and windshield/cowl sealing.
4. Inspect for a water leak in the area. If necessary use a water hose to determine the source of the
leak. Refer to General Information > Water Leaks
in SI.
‹› If a water leak is observed, repair as necessary. Verify the effectiveness of the repair.
5. Inspect the IP to body harness connector terminals for corrosion and debris. Refer to Testing for
Intermittent Conditions and Poor Connections in
SI.
‹› If any corrosion and/or debris is observed, repair as necessary.
6. After completing the repair, verify the proper operation of the system. Depending on the vehicle
and model year, perform the Diagnostic Repair
Verification procedure or refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 07-06-04-019D > Jun > 10 > Electrical - Intermittent
MIL/DTC P2138/Reduced Power > Page 12853
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the appropriate labor operation for the source of the
water leak
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 06-08-45-004 > May > 06 > Electrical - Instrument
Panel & General Wiring Repair
Wiring Harness: All Technical Service Bulletins Electrical - Instrument Panel & General Wiring
Repair
Bulletin No.: 06-08-45-004
Date: May 02, 2006
INFORMATION
Subject: Instrument Panel (I/P), Body and General Wiring Harness Repair
Models: 2007 and Prior GM Cars and Trucks 2003-2007 HUMMER H2 2006-2007 HUMMER H3
Important:
A part restriction has been implemented on all Body and I/P harnesses and is being administered
by the PQC. If a body or I/P harness replacement is required, it can take 12-28 weeks for a
harness to be built and delivered to a dealer. The dealer technician is expected to repair any
harness damage as the first and best choice before replacing a harness.
In an effort to standardize repair practices, General Motors is requiring that all wiring harnesses be
repaired instead of replaced. If there is a question concerning which connector and/or terminal you
are working on, refer to the information in the appropriate Connector End Views in SI. The
Instruction Manual J 38125-620, which is sent with each new update of the J 38125 Terminal
Repair Kit, also has terminal crimping and terminal remove information.
Important:
There are some parts in the J 38125 Terminal Repair Kit (i.e. SIR connector CPAs and heat shrink
tube (used in high heat area pigtail replacement) and some TPAs that are not available from
GMSPO. It is vitally important that each update to the J 38125 Terminal Repair Kit be done as soon
as it arrives at the dealer.
Utilize the Terminal Repair Kit (J 38125) to achieve an effective wiring repair. The Terminal Repair
Kit has been an essential tool for all GM Dealers since 1987. Replacement terminals and tools for
this kit are available through SPX/Kent Moore. Refer to Corporate Bulletin Number 06-08-45-001
for more information.
The Instruction Manual J 38125-620, which is sent with each new update to the J 38125 Terminal
Repair Kit, also has terminal crimping and terminal removal information.
U.S. Dealers Only - Training courses (including Tech Assists, Emerging Issues, Web, IDL and
Hands-on) are available through the GM Training website. Refer to Resources and then Training
Materials for a complete list of available courses.
Canadian Dealers Only - Refer to the Training section of GM infoNet for a complete list of available
courses and a copy of the J 38125 Terminal Repair Kit Instruction Manual.
Wiring repair information is also available in Service Information (SI). The Wiring Repair section
contains information for the following types of wiring repairs:
- Testing for intermittent conditions and poor conditions
- Flat wire repairs
- GMLAN wiring repairs
- High temperature wiring repairs
- Splicing copper wire using splice clips
- Splicing copper wire using splice sleeves
- Splicing twisted or shielded cable
- Splicing inline harness diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Wiring Harness: > 06-08-45-004 > May > 06 > Electrical - Instrument
Panel & General Wiring Repair > Page 12858
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information For
Electrical Ground Repair
Wiring Harness: All Technical Service Bulletins Electrical - Information For Electrical Ground Repair
INFORMATION
Bulletin No.: 10-08-45-001B
Date: October 25, 2010
Subject: Information for Electrical Ground Repair - Use New Replacement Fasteners with
Conductive Finish
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add the 2011 model year and update the Warranty
Information. Please discard Corporate Bulletin Number 10-08-45-001A (Section 08 - Body and
Accessories).
Electrical Ground Repair Overview
Proper electrical system function relies on secure, stable and corrosion-free electrical ground
connections. Loose, stripped, or corroded connections increase the possibility of improper system
function and loss of module communication. These conditions may also lead to unnecessary
repairs and component replacement.
In general, electrical ground connections are accomplished using one, or a combination of the
following attachment methods:
- Welded M6 stud and nut
- Welded M6 nut and bolt
- Welded M8 nut and bolt
Determine which attachment method is used and perform the appropriate or alternative repair as
described in this bulletin.
M6 Weld Stud Replacement
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. Select a location adjacent the damaged or missing M6 ground stud having 20 mm (0.79 in)
clearance behind the panel surface and 20 mm (0.79 in)
clearance surrounding the M6 conductive rivet stud flange.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
3. Drill a 10 mm (0.40 in) diameter hole through the panel.
4. Remove paint and primer from the area surrounding the 10 mm (0.40 in) hole until bare metal is
visible.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information For
Electrical Ground Repair > Page 12864
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
5. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
6. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
7. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 8. Ensure the rivet stud is securely fastened, WITHOUT ANY detectable movement. 9.
Completely wrap the threads of the rivet stud with painters tape or equivalent.
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the ground wire terminal and conductive nut to maintain a secure, stable and
corrosion-free electrical ground.
10. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 11. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 12. Remove the painters tape or equivalent from the rivet
stud threads. 13. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 14. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information For
Electrical Ground Repair > Page 12865
15. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 16. Install the electrical ground wire terminal to the rivet stud. 17. Select a M6
conductive nut. Refer to the Parts Information section of this bulletin. 18. Install the M6 conductive
nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in).
19. Verify proper system operation.
M6 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M6 weld nut at the electrical ground location is damaged or stripped, a M7 conductive
self-threading bolt may be used to secure the ground
wire terminal.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the weld nut and allow to dry. 3. Remove any loose metal particles from the damaged
or stripped weld nut with a stiff brush. 4. Select a M7 conductive self-threading bolt. Refer to the
Parts Information section of this bulletin 5. Using a small brush, apply Dielectric Lubricant GM P/N
12377900 (Canadian P/N 10953529) to the threads of the M7 conductive self-threading
bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
6. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 7. Install the electrical ground wire terminal to the M7 conductive self-threading bolt.
8. Install the M7 conductive self-threading bolt and:
Tighten Tighten to 9 Nm (80 lb in).
9. Verify proper system operation.
M6 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the electrical ground location is accessible from both sides of the panel, a M6 conductive bolt
and a M6 conductive nut may be used to secure
the electrical ground wire terminal. Refer to the Parts Information section of this bulletin.
2. Select a location adjacent the damaged M6 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 8.5 mm (0.33 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 8.5 mm (0.33 in) hole until bare metal is visible. 6. Select a M6 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M6 conductive bolt to the ground
location.
10. Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M6 conductive nut to the bolt and:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information For
Electrical Ground Repair > Page 12866
Tighten Tighten to 8 Nm (71 lb in).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is accessible from both sides of the panel, a M8
conductive bolt and a M8 conductive nut may be
used to secure the electrical ground wire terminal. Refer to the Parts Information section of this
bulletin.
2. Select a location adjacent the M8 weld nut having 20 mm (0.79 in) clearance behind the panel
surface and 20 mm (0.79 in) clearance surrounding
the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface
surrounding the ground location and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel. 5. Remove paint and primer from the
area surrounding the 10 mm (0.40 in) hole until bare metal is visible. 6. Select a M8 conductive
bolt. Refer to the Parts Information section of this bulletin. 7. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M8 conductive bolt.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 9. Install the electrical ground wire terminal and the M8 conductive bolt to the ground
location.
10. Select a M8 conductive nut. Refer to the Parts Information section of this bulletin. 11. Install the
M8 conductive nut to the bolt and:
Tighten Tighten to 22 Nm (16 lb ft).
Note The repair area MUST BE properly refinished to maintain a secure, stable and corrosion-free
electrical ground.
12. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 13. Verify proper system operation.
M8 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground
repair.
1. If the M8 weld nut electrical ground location is not accessible from both sides of the panel, a M6
conductive rivet stud and a M6 conductive nut
may be used to secure the electrical ground wire terminal.
2. Select a location adjacent the damaged M8 weld nut having 20 mm (0.79 in) clearance behind
the panel surface and 20 mm (0.79 in) clearance
surrounding the M6 conductive rivet stud flange.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the repair site
and allow to dry.
Note Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 10 mm (0.40 in) diameter hole through the panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information For
Electrical Ground Repair > Page 12867
5. Remove paint and primer from the area surrounding the 10 mm (0.40 in) until bare metal is
visible.
Important The M6 conductive rivet stud as shown, can accommodate a panel thickness range of
0.7-4.2 mm (0.03-0.17 in). If there are layers of sheet metal, they should be touching without any
air gaps to ensure a good ground.
6. Select a M6 conductive rivet stud. Refer to the Parts Information section of this bulletin.
Note Use the GE-50317 rivet stud tool kit.
7. Place the M6 conductive rivet stud (1) in the 10 mm (0.40 in) hole. Assemble the rivet stud tool
(2) with the groove and flare side facing the rivet
stud, then the washer and the M6 nut (3).
8. Using a wrench on the rivet stud tool, and a socket on the M6 nut, secure the M6 conductive
rivet stud. 9. Ensure the new rivet stud is securely fastened, WITHOUT ANY detectable movement.
10. Completely wrap the threads of the rivet stud with painters tape or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information For
Electrical Ground Repair > Page 12868
Note The rivet stud and surrounding panel area MUST BE properly refinished PRIOR to the
installation of the electrical ground wire terminal and conductive nut to maintain a secure, stable
and corrosion-free electrical ground.
11. Refinish the repair area using an anti-corrosion primer. Refer to Anti-Corrosion Treatment and
Repair in SI. 12. Allow the refinished repair area to cure sufficiently before removing the protective
material applied to the rivet stud threads. 13. Remove the painters tape or equivalent from the rivet
stud threads. 14. Using GM approved residue-free solvent or equivalent, thoroughly clean the rivet
stud threads to remove any adhesive and allow to dry. 15. Using a small brush, apply Dielectric
Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet
stud.
Note Fretting corrosion is a build-up of insulating, oxidized wear debris that can form when there is
a small motion between electrical contacts. The oxidized wear debris can accumulate at the
electrical contact points causing the electrical resistance across the connection to increase.
16. Carefully remove ANY corrosion or contamination that may be present on the electrical ground
wire terminal. 17. Install the electrical ground wire terminal to the M6 conductive rivet stud. 18.
Select a M6 conductive nut. Refer to the Parts Information section of this bulletin. 19. Install the M6
conductive nut to the rivet stud and:
Tighten Tighten to 8 Nm (71 lb in)
20. Verify proper system operation.
Parts Information
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Other Service Bulletins for Wiring Harness: > 10-08-45-001B > Oct > 10 > Electrical - Information For
Electrical Ground Repair > Page 12869
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Other Service Bulletins for Wiring Harness: > 06-08-45-004 > May > 06 > Electrical - Instrument Panel
& General Wiring Repair
Wiring Harness: All Technical Service Bulletins Electrical - Instrument Panel & General Wiring
Repair
Bulletin No.: 06-08-45-004
Date: May 02, 2006
INFORMATION
Subject: Instrument Panel (I/P), Body and General Wiring Harness Repair
Models: 2007 and Prior GM Cars and Trucks 2003-2007 HUMMER H2 2006-2007 HUMMER H3
Important:
A part restriction has been implemented on all Body and I/P harnesses and is being administered
by the PQC. If a body or I/P harness replacement is required, it can take 12-28 weeks for a
harness to be built and delivered to a dealer. The dealer technician is expected to repair any
harness damage as the first and best choice before replacing a harness.
In an effort to standardize repair practices, General Motors is requiring that all wiring harnesses be
repaired instead of replaced. If there is a question concerning which connector and/or terminal you
are working on, refer to the information in the appropriate Connector End Views in SI. The
Instruction Manual J 38125-620, which is sent with each new update of the J 38125 Terminal
Repair Kit, also has terminal crimping and terminal remove information.
Important:
There are some parts in the J 38125 Terminal Repair Kit (i.e. SIR connector CPAs and heat shrink
tube (used in high heat area pigtail replacement) and some TPAs that are not available from
GMSPO. It is vitally important that each update to the J 38125 Terminal Repair Kit be done as soon
as it arrives at the dealer.
Utilize the Terminal Repair Kit (J 38125) to achieve an effective wiring repair. The Terminal Repair
Kit has been an essential tool for all GM Dealers since 1987. Replacement terminals and tools for
this kit are available through SPX/Kent Moore. Refer to Corporate Bulletin Number 06-08-45-001
for more information.
The Instruction Manual J 38125-620, which is sent with each new update to the J 38125 Terminal
Repair Kit, also has terminal crimping and terminal removal information.
U.S. Dealers Only - Training courses (including Tech Assists, Emerging Issues, Web, IDL and
Hands-on) are available through the GM Training website. Refer to Resources and then Training
Materials for a complete list of available courses.
Canadian Dealers Only - Refer to the Training section of GM infoNet for a complete list of available
courses and a copy of the J 38125 Terminal Repair Kit Instruction Manual.
Wiring repair information is also available in Service Information (SI). The Wiring Repair section
contains information for the following types of wiring repairs:
- Testing for intermittent conditions and poor conditions
- Flat wire repairs
- GMLAN wiring repairs
- High temperature wiring repairs
- Splicing copper wire using splice clips
- Splicing copper wire using splice sleeves
- Splicing twisted or shielded cable
- Splicing inline harness diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Power and Ground Distribution > Wiring Harness > Component Information > Technical
Service Bulletins > All Other Service Bulletins for Wiring Harness: > 06-08-45-004 > May > 06 > Electrical - Instrument Panel
& General Wiring Repair > Page 12874
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Technical Service Bulletins >
Steering/Suspension - Wheel Alignment Specifications
Alignment: Technical Service Bulletins Steering/Suspension - Wheel Alignment Specifications
WARRANTY ADMINISTRATION
Bulletin No.: 05-03-07-009C
Date: December 09, 2010
Subject: Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks
Supercede: This bulletin is being extensively revised to provide technicians and warranty
administrators with an all inclusive guide for wheel alignments. PLEASE FAMILIARIZE YOURSELF
WITH THESE UPDATES BEFORE PERFORMING YOUR NEXT GM WHEEL ALIGNMENT
SERVICE. Please discard Corporate Bulletin Number 05-03-07-009B (Section 03 - Suspension).
Purpose
The purpose of this bulletin is to provide retail, wholesale and fleet personnel with General Motors'
warranty service requirements and recommendations for customer concerns related to wheel
alignment. For your convenience, this bulletin updates and centralizes all of GM's Standard Wheel
Alignment Service Procedures, Policy Guidelines and bulletins on wheel alignment warranty
service.
Important PLEASE FAMILIARIZE YOURSELF WITH THESE UPDATES BEFORE PERFORMING
YOUR NEXT GM WHEEL ALIGNMENT SERVICE.
The following five (5) key steps are a summary of this bulletin and are REQUIRED in completing a
successful wheel alignment service.
1. Verify the vehicle is in an Original Equipment condition for curb weight, tires, wheels, suspension
and steering configurations. Vehicles
modified in any of these areas are not covered for wheel alignment warranty.
2. Review the customer concern relative to "Normal Operation" definitions. 3. Verify that vehicle is
within the "Mileage Policy" range. 4. Document wheel alignment warranty claims appropriately for
labor operations E2000 and E2020.
The following information must be documented or attached to the repair order:
- Customer concern in detail
- What corrected the customer concern?
- If a wheel alignment is performed:
- Consult SI for proper specifications.
- Document the "Before" AND "After" wheel alignment measurements/settings.
- Completed "Wheel Alignment Repair Order Questionnaire" (form attached to this bulletin)
5. Use the proper wheel alignment equipment (preferred with print-out capability), process and the
appropriate calibration maintenance schedules.
Important If it is determined that a wheel alignment is necessary under warranty, use the proper
labor code for the repair. E2000 for Steering Wheel Angle and/or Front Toe set or E2020 for Wheel
Alignment Check/Adjust includes Caster, Camber and Toe set (Wheel alignment labor time for
other component repairs is to be charged to the component that causes a wheel alignment
operation.).
The following flowchart is to help summarize the information detailed in this bulletin and should be
used whenever a wheel alignment is performed.
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Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Technical Service Bulletins >
Steering/Suspension - Wheel Alignment Specifications > Page 12880
Verify Original Equipment Condition of the Vehicle
- Verify that Original Equipment Tires and Wheels or Official GM Accessory Tires and Wheels are
on the vehicle.
- Verify that aftermarket suspension "Lift" or "Lowering" Kits or other suspension alterations have
NOT been done to the vehicle.
- Check for accidental damage to the vehicle; for example, severe pothole or curb impacts, collision
damage that may have affected the wheel alignment of the vehicle; e.g., engine cradles,
suspension control arms, axles, wheels, wheel covers, tires may show evidence of damage/impact.
- Check to be sure vehicle has seen "Normal Use" rather than abuse; e.g., very aggressive driving
may show up by looking at the tires and condition of the vehicle.
- Check for other additional equipment items that may significantly affect vehicle mass such as
large tool boxes, campers, snow plow packages (without the snowplow RPO), etc., especially in
trucks and cutaway/incomplete vehicles. Significant additional mass can affect trim height and
wheel alignment of the vehicle and may necessitate a customer pay wheel alignment when placed
semi-permanently in the vehicle (Upfitter instructions are to realign the vehicle after placement of
these types of items. (This typically applies to trucks and incomplete vehicles that can be upfit with
equipment such as the above.)
Customer Concerns, "Normal Operation" Conditions and "Mileage Policy"
Possible Concerns
The following are typical conditions that may require wheel alignment warranty service:
1. Lead/Pull: defined as "at a constant highway speed on a typical straight road, the amount of
effort required at the steering wheel to maintain the
vehicle's straight heading."
Important Please evaluate for the condition with hands-on the steering wheel. Follow the "Vehicle
Leads/Pulls" diagnostic tree located in SI to determine the cause of a lead/pull concern. Lead/Pull
concerns can be due to road crown or road slope, tires, wheel alignment or even in rare
circumstances a steering gear issue. Lead/pull concerns due to road crown are considered
"Normal Operation" and are NOT a warrantable condition -- the customer should be advised that
this is "Normal Operation."
Important Some customers may comment on a "Lead/Pull" when they hold the steering wheel in a
level condition. If so, this is more likely a "steering wheel angle" concern because the customer is
"steering" the vehicle to obtain a "level" steering wheel.
2. Steering wheel angle to the left or right (counter-clockwise or clockwise, respectively): Defined
as the steering wheel angle (clocking)
deviation from "level" while maintaining a straight heading on a typical straight road.
3. Irregular or Premature tire wear: Slight to very slight "feathering" or "edge" wear on the
shoulders of tires is NOT considered unusual and
should even out with a tire rotation; if the customer is concerned about a "feathering" condition of
the tires, the customer could be advised to rotate the tires earlier than the next scheduled
mileage/maintenance interval (but no later than the next interval). Be sure to understand the
customer's driving habits as this will also heavily influence the tire wear performance; tire wear from
aggressive or abusive driving habits is NOT a warrantable condition.
Important Slight or mild feathering, cupping, edge or heel/toe wear of tire tread shoulders is
"normal" and can show up very early in a tire/vehicle service mileage; in fact, some new tires can
show evidence of feathering from the factory. These issues do NOT affect the overall performance
and tread life of the tire. Dealer personnel should always check the customer's maintenance
records to ensure that tire inflation pressure is being maintained to placard and that the tires are
being rotated (modified-X pattern) at the proper mileage intervals. Wheel alignments are NOT to be
performed for the types of "Normal" Tire Feathering shown in Figures 1-4 below.
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Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Technical Service Bulletins >
Steering/Suspension - Wheel Alignment Specifications > Page 12881
Figure 1: Full Tread View - "NORMAL" Tire "Feathering" Wear on the Shoulder/Adjacent/Center
Ribs
Figure 2: Tire Shoulder View Example 1 - "NORMAL" Tire "Feathering" Wear on the Shoulder
Figure 3: Tire Shoulder View Example 2 - "NORMAL" Tire "Feathering" Wear
Figure 4: Detail Side View of Tire Shoulder Area - "NORMAL" Tire "Feathering" Wear
Important When a wheel alignment is deemed necessary for tire wear, be sure to document on the
repair order, in as much detail as possible, the severity and type of tire wear (e.g., severe center
wear or severe inside or outside shoulder wear) and the position of the tire on the vehicle (RF, LF,
LR, RR). Please note the customer's concern with the wear such as, noise, appearance, wear life,
etc. A field product report with pictures of the tire wear condition is recommended. Refer to
Corporate Bulletin Number 02-00-89-002J and #07-00-89-036C.
4. Other repairs that affect wheel alignment; e.g., certain component replacement such as
suspension control arm replacement, engine cradle
adjustment/replace, steering gear replacement, steering tie rod replace, suspension strut/shock,
steering knuckle, etc. may require a wheel alignment.
Important If other components or repairs are identified as affecting the wheel alignment, policy calls
for the wheel alignment labor time to be charged to the replaced/repaired component's labor
operation time rather than the wheel alignment labor operations.
Important Vibration type customer concerns are generally NOT due to wheel alignment except in
the rare cases; e.g., extreme diagonal wear across the tread. In general, wheel alignments are
NOT to be performed as an investigation/correction for vibration concerns.
"Normal Operation" Conditions
Vehicle Lead/Pull Due to Road Crown or Slope:
As part of "Normal Operation," vehicles will follow side-to-side or left to right road crown or slope.
Be sure to verify from the customer the types of roads they are driving as they may not recognize
the influence of road crown on vehicle lead/pull and steering wheel angle. If a vehicle requires
significant steering effort to prevent it from "climbing" the road crown there may be an issue to be
looked into further.
Important
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Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Technical Service Bulletins >
Steering/Suspension - Wheel Alignment Specifications > Page 12882
A wheel alignment will generally NOT correct vehicles that follow the road crown since this is within
"Normal Operation."
Mileage Policy
The following mileage policy applies for E2020 and E2000 labor operations: Note
Wheel Alignment is NOT covered under the New Vehicle Limited Warranty for Express and Savana
Cutaway vehicles as these vehicles require Upfitters to set the wheel alignment after completing
the vehicles.
- 0-800 km (0-500 mi): E2000/E2020 claims ONLY allowed with Call Center Authorization. Due to
the tie down during shipping, the vehicle's suspension requires some time to reach normal
operating position. For this reason, new vehicles are generally NOT to be aligned until they have
accumulated at least 800 km (500 mi). A field product report should accompany any claim within
this mileage range.
- 801-12,000 km (501-7,500 mi):
- If a vehicle came from the factory with incorrect alignment settings, any resulting off-angle
steering wheel, lead/pull characteristics or the rare occurrence of excessive tire wear would be
apparent early in the life of the vehicle. The following policy applies:
- Vehicles 100% Factory Set/Measured for Caster/Camber/Toe - Escalade/ESV/EXT,
Tahoe/Suburban, Yukon/XL/Denali, Silverado/Sierra, Express/Savana, Corvette and
Colorado/Canyon: E2000/E2020 Claims: Call Center Authorization Required
- All Vehicles NOT 100% Factory Set/Measured for Caster/Camber/Toe as noted above:
E2000/E2020 Claims: Dealer Service Manager Authorization Required
- 12,001 km and beyond (7,501 miles and beyond): During this period, customers are responsible
for the wheel alignment expense or dealers may provide on a case-by case basis a one-time
customer enthusiasm claim up to 16,000 km (10,000 mi). In the event that a defective component
required the use of the subject labor operations, the identified defective component labor operation
will include the appropriate labor time for a wheel alignment as an add condition to the component
repair.
Important Only one wheel alignment labor operation claim (E2000 or E2020) may be used per VIN.
Warranty Documentation Requirements
When a wheel alignment service has been deemed necessary, the following items will need to be
clearly documented on/with the repair order:
- Customer concern in detail
- What corrected the customer concern?
- If a wheel alignment is performed:
- Consult SI for proper specifications.
- Document the "Before" AND "After" wheel alignment measurements/settings.
- Completed "Wheel Alignment Repair Order Questionnaire" (form attached to this bulletin)
1. Document the customer concern in as much detail as possible on the repair order and in the
warranty administration system. Preferred examples:
- Steering wheel is off angle in the counterclockwise direction by approximately x degrees or
clocking position.
- Vehicle lead/pulls to the right at approximately x-y mph. Vehicle will climb the road crown. Severe,
Moderate or Slight.
- RF and LF tires are wearing on the outside shoulders with severe feathering.
Important In the event of a lead/pull or steering wheel angle concern, please note the direction of
lead/pull (left or right) or direction of steering wheel angle (clockwise or counterclockwise) on the
repair order and within the warranty claim verbatim.
Important In the event of a tire wear concern, please note the position on the vehicle and where the
wear is occurring on the tire; i.e., the RF tire is wearing on the inside shoulder.
2. Document the technician's findings on cause and correction of the issue. Examples:
- Reset LF toe from 0.45 degrees to 0.10 degrees and RF toe from -0.25 degrees to 0.10 degrees
to correct the steering wheel angle from 5 degrees counterclockwise to 0 degrees.
- Reset LF camber from 0.25 degrees to -0.05 degrees to correct the cross-camber condition of
+0.30 degrees to 0.00 degrees on the vehicle.
- Front Sum toe was found to be 0.50 degrees, reset to 0.20 degrees.
3. Print-out the "Before" and "After" wheel alignment measurements/settings and attach them to the
Repair Order or if print-out capability is not
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Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Technical Service Bulletins >
Steering/Suspension - Wheel Alignment Specifications > Page 12883
available, measurements may also be clearly and legibly handwritten into the Wheel Alignment
Repair Order Questionnaire attached to this bulletin.
4. Attach the Wheel Alignment Repair Order Questionnaire below along with the print-out of
"Before" and "After" wheel alignment measurements to
the Repair Order and retain for use by GM.
Wheel Alignment Equipment and Process
Wheel alignments must be performed with a quality machine that will give accurate results when
performing checks. "External Reference" (image-based camera technology) is preferred. Please
refer to Corporate Bulletin Number 05-00-89-029B: General Motors Dealership Critical Equipment
Requirements and Recommendations.
Requirements:
- Computerized four wheel alignment system.
- Computer capable of printing before and after alignment reports.
- Computer capable of time and date stamp printout.
- Racking system must have jacking capability
- Racking system must be capable of level to 1.6 mm (1/16 in)
- Appropriate wheel stops and safety certification
- Built-in turn plates and slip plates
- Wheel clamps capable of attaching to 20" or larger wheels
- Racking capable of accepting any GM passenger car or light duty truck
- Operator properly trained and ASE-certified (U.S. only) in wheel alignment
Recommendations:
Racking should have front and rear jacking capability.
Equipment Maintenance and Calibration:
Alignment machines must be regularly calibrated in order to give correct information. Most
manufacturers recommend the following:
- Alignment machines with "internal reference" sensors should be checked (and calibrated, if
necessary) every six months.
- Alignment machines with "external reference" (image-based camera technology) should be
checked (and calibrated, if necessary) once a year.
- Racks must be kept level to within 1.6 mm (1/16 in).
- If any instrument that is part of the alignment machine is dropped or damaged in some way,
check the calibration immediately.
Check with the manufacturer of your specific equipment for their recommended service/calibration
schedule.
Wheel Alignment Process
When performing wheel alignment measurement and/or adjustment, the following steps should be
taken:
Preliminary Steps:
1. Verify that the vehicle has a full tank of fuel (compensate as necessary). 2. Inspect the wheels
and the tires for damage. 3. Inspect the tires for the proper inflation and irregular tire wear. 4.
Inspect the wheel bearings for excessive play. 5. Inspect all suspension and steering parts for
looseness, wear, or damage. 6. Inspect the steering wheel for excessive drag or poor return due to
stiff or rusted linkage or suspension components. 7. Inspect the vehicle trim height. 8. Compensate
for frame angle on targeted vehicles (refer to Wheel Alignment Specifications in SI).
Satisfactory vehicle operation may occur over a wide range of alignment angles. However, if the
wheel alignment angles are not within the range of specifications, adjust the wheel alignment to the
specifications. Refer to Wheel Alignment Specifications in SI. Give consideration to excess loads,
such as tool boxes, sample cases, etc. Follow the wheel alignment equipment manufacturer's
instructions.
Measure/Adjust:
Important Prior to making any adjustments to wheel alignment on a vehicle, technicians must verify
that the wheel alignment specifications loaded into their wheel alignment machine are up-to-date
by comparing these to the wheel alignment specifications for the appropriate model and model year
in SI. Using incorrect and/or outdated specifications may result in unnecessary adjustments,
irregular and/or premature tire wear and repeat customer concerns
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Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Technical Service Bulletins >
Steering/Suspension - Wheel Alignment Specifications > Page 12884
Important When performing adjustments to vehicles requiring a 4-wheel alignment, set the rear
wheel alignment angles first in order to obtain proper front wheel alignment angles.
Perform the following steps in order to measure the front and rear alignment angles:
1. Install the alignment equipment according to the manufacturer's instructions. 2. Jounce the front
and the rear bumpers 3 times prior to checking the wheel alignment. 3. Measure the alignment
angles and record the readings.
If necessary, adjust the wheel alignment to vehicle specification and record the before and after
measurements. Refer to Wheel Alignment Specifications in SI.
Important Technicians must refer to SI for the correct wheel alignment specifications. SI is the only
source of GM wheel alignment specifications that is kept up-to-date throughout the year.
Test drive vehicle to ensure proper repair.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Technical Service Bulletins >
Steering/Suspension - Wheel Alignment Specifications > Page 12885
Frame Angle Measurement (Express / Savana Only) ........
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Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Technical Service Bulletins >
Steering/Suspension - Wheel Alignment Specifications > Page 12886
What corrected the customer concern and was the repair verified?
Please Explain: .............
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Specifications > Fastener
Tightening Specifications
Alignment: Specifications Fastener Tightening Specifications
Fastener Tightening Specifications
Fastener Tightening Specifications
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Specifications > Fastener
Tightening Specifications > Page 12889
Alignment: Specifications Trim Height Specifications
Trim Height Specifications
Trim Height Specifications
Measuring Z Height
Measuring Z Height
Measuring D Height
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Specifications > Fastener
Tightening Specifications > Page 12890
Measuring D Height
Measuring J or K Height
Measuring J or K Height
Measuring A or B Height
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Specifications > Fastener
Tightening Specifications > Page 12891
Measuring A or B Height
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Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Specifications > Fastener
Tightening Specifications > Page 12892
Alignment: Specifications Wheel Alignment Specifications
WHEEL ALIGNMENT SPECIFICATIONS
FRONT SUSPENSION
Camber ................................................................................................................................................
.......................................................... -0.6° ± 0.75° Camber Cross Tolerance ....................................
............................................................................................................................................. 0.0° ±
0.50° Caster ........................................................................................................................................
.................................................................... 3.00° ± 0.75° Caster Cross Tolerance ............................
.......................................................................................................................................................
0.0° ± 0.50° Total Toe .........................................................................................................................
........................................................................... +0.15° ± 0.20° Steering Wheel Angle ......................
..............................................................................................................................................................
. 0.00° ± 3.5° Thrust Angle ..................................................................................................................
................................................................................................. --REAR SUSPENSION
Camber ................................................................................................................................................
.......................................................... -0.5° ± 0.75° Camber Cross Tolerance ....................................
............................................................................................................................................. 0.0° ±
0.75° Caster ........................................................................................................................................
..................................................................................... --- Caster Cross Tolerance ............................
..............................................................................................................................................................
......... --- Total Toe ...............................................................................................................................
....................................................................... +0.2° ± 0.20° Steering Wheel Angle ............................
..............................................................................................................................................................
.......... --- Thrust Angle .........................................................................................................................
.......................................................................... 0.0° ± 0.20°
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Description and Operation >
Caster Description
Alignment: Description and Operation Caster Description
Caster Description
Caster Description
Caster is the tilting of the uppermost point of the steering axis either forward or backward, when
viewed from the side of the vehicle. A backward tilt is positive (+) and a forward tilt is negative (-).
Caster influences directional control of the steering but does not affect the tire wear. Caster is
affected by the vehicle height, therefore it is important to keep the body at its designed height.
Overloading the vehicle or a weak or sagging rear spring will affect caster. When the rear of the
vehicle is lower than its designated trim height, the front suspension moves to a more positive
caster. If the rear of the vehicle is higher than its designated trim height, the front suspension
moves to a less positive caster.
With too little positive caster, steering may be touchy at high speed and wheel returnability may be
diminished when coming out of a turn. If one wheel has more positive caster than the other, that
wheel will pull toward the center of the vehicle. This condition will cause the vehicle to pull or lead
to the side with the least amount of positive caster.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Description and Operation >
Caster Description > Page 12895
Alignment: Description and Operation Camber Description
Camber Description
Camber Description
Camber is the tilting of the wheels from the vertical when viewed from the front of the vehicle.
When the wheels tilt outward at the top, the camber is positive (+). When the wheel tilts inward at
the top, the camber is negative (-). The amount of tilt is measured in degrees from the vertical.
Camber settings influence the directional control and the tire wear.
Too much positive camber will result in premature wear on the outside of the tire and cause
excessive wear on the suspension parts.
Too much negative camber will result in premature wear on the inside of the tire and cause
excessive wear on the suspension parts.
Unequal side-to-side camber of 1 degree or more will cause the vehicle to pull or lead to the side
with the most positive camber.
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Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Description and Operation >
Caster Description > Page 12896
Alignment: Description and Operation Toe Description
Toe Description
Toe Description
Toe is a measurement of how much the front and/or rear wheels are turned in or out from a
straight-ahead position. When the wheels are turned in, toe is positive (+). When the wheels are
turned out, toe is negative (-). The actual amount of toe is normally only a fraction of a degree. The
purpose of toe is to ensure that the wheels roll parallel.
Toe also offsets the small deflections of the wheel support system that occur when the vehicle is
rolling forward. In other words, with the vehicle standing still and the wheels set with toe-in, the
wheels tend to roll parallel on the road when the vehicle is moving.
Improper toe adjustment will cause premature tire wear and cause steering instability.
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Caster Description > Page 12897
Alignment: Description and Operation Setback Description
Setback Description
Setback applies to both the front and the rear wheels. Setback is the amount that one wheel may
be aligned behind the other wheel. Setback may be the result of a road hazard or a collision. The
first clue is a caster difference from side-to-side of more than 1 degree.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Description and Operation >
Caster Description > Page 12898
Alignment: Description and Operation
Caster Description
Caster Description
Caster Description
Caster is the tilting of the uppermost point of the steering axis either forward or backward, when
viewed from the side of the vehicle. A backward tilt is positive (+) and a forward tilt is negative (-).
Caster influences directional control of the steering but does not affect the tire wear. Caster is
affected by the vehicle height, therefore it is important to keep the body at its designed height.
Overloading the vehicle or a weak or sagging rear spring will affect caster. When the rear of the
vehicle is lower than its designated trim height, the front suspension moves to a more positive
caster. If the rear of the vehicle is higher than its designated trim height, the front suspension
moves to a less positive caster.
With too little positive caster, steering may be touchy at high speed and wheel returnability may be
diminished when coming out of a turn. If one wheel has more positive caster than the other, that
wheel will pull toward the center of the vehicle. This condition will cause the vehicle to pull or lead
to the side with the least amount of positive caster.
Camber Description
Camber Description
Camber Description
Camber is the tilting of the wheels from the vertical when viewed from the front of the vehicle.
When the wheels tilt outward at the top, the camber is positive (+). When the wheel tilts inward at
the top, the camber is negative (-). The amount of tilt is measured in degrees from the vertical.
Camber settings influence the directional control and the tire wear.
Too much positive camber will result in premature wear on the outside of the tire and cause
excessive wear on the suspension parts.
Too much negative camber will result in premature wear on the inside of the tire and cause
excessive wear on the suspension parts.
Unequal side-to-side camber of 1 degree or more will cause the vehicle to pull or lead to the side
with the most positive camber.
Toe Description
Toe Description
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Description and Operation >
Caster Description > Page 12899
Toe Description
Toe is a measurement of how much the front and/or rear wheels are turned in or out from a
straight-ahead position. When the wheels are turned in, toe is positive (+). When the wheels are
turned out, toe is negative (-). The actual amount of toe is normally only a fraction of a degree. The
purpose of toe is to ensure that the wheels roll parallel.
Toe also offsets the small deflections of the wheel support system that occur when the vehicle is
rolling forward. In other words, with the vehicle standing still and the wheels set with toe-in, the
wheels tend to roll parallel on the road when the vehicle is moving.
Improper toe adjustment will cause premature tire wear and cause steering instability.
Setback Description
Setback Description
Setback applies to both the front and the rear wheels. Setback is the amount that one wheel may
be aligned behind the other wheel. Setback may be the result of a road hazard or a collision. The
first clue is a caster difference from side-to-side of more than 1 degree.
Thrust Angles Description
Thrust Angles Description
Thrust Angles Description
The front wheels aim or steer the vehicle. The rear wheels control tracking. This tracking action
relates to the thrust angle (3). The thrust angle is the path that the rear wheels take. Ideally, the
thrust angle is geometrically aligned with the body centerline (2).
In the illustration, toe-in is shown on the left rear wheel, moving the thrust line (1) off center. The
resulting deviation from the centerline is the thrust angle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Description and Operation >
Caster Description > Page 12900
If the thrust angle is not set properly the vehicle may "dog track", the steering wheel may not be
centered or it could be perceived as a bent axle. Thrust angle can be checked during a wheel
alignment.
Positive thrust angle means the thrust line is pointing to the right hand side (RHS) of the vehicle.
Negative thrust angle means the thrust line is pointing to the left hand side (LHS) of the vehicle.
If the thrust angle is out of specification, moving the axle to body relationship will change the thrust
angle reading.
If the vehicle is out in the Positive (+) direction-moving the RHS forward and/or LHS rearward will
move the thrust angle towards zero degrees.
If the vehicle is out in the Negative (-) direction-moving the RHS rearward and/or LHS forward will
move the thrust angle towards zero degrees.
Lead/Pull Description
Lead/Pull Description
At a constant highway speed on a typical straight road, lead/pull is the amount of effort required at
the steering wheel to maintain the vehicle's straight path.
Important: Vehicles will tend to lead/pull in the direction of the road slope as part of normal
operation.
Lead/pull is usually caused by the following factors:
* Road slope
* Variability in tire construction
* Wheel alignment (front cross caster and camber)
* Unbalanced steering gear
* Electronic Power Steering (EPS) steering position and torque sensors not calibrated correctly, if
equipped.
Torque Steer Description
Torque Steer Description
A vehicle pulls or leads in one direction during hard acceleration. A vehicle pulls or leads in the
other direction during deceleration.
The following factors may cause torque steer to be more apparent on a particular vehicle:
* A slightly smaller diameter tire on the right front increases a right torque lead. Inspect the front
tires for differences in the brand, the construction, or the size. If the tires appear to be similar,
change the front tires from side-to-side and retest the vehicle. Tire and wheel assemblies have the
most significant effect on torque steer correction.
* A large difference in the right and left front tire pressure
* Left-to-right differences in the front view axle angle may cause significant steering pull in a
vehicle. The pull will be to the side with the most downward sloping axle from the differential to the
wheels. Axles typically slope downward from the differential. The slope of the transaxle pan to
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Description and Operation >
Caster Description > Page 12901
level ground may be used as an indication of bias axle angles. The side with the higher transaxle
pan (shown on the left side of the illustration) has the most downward sloping axle angle.
Memory Steer Description
Memory Steer Description
Memory steer is when the vehicle wants to lead or pull in the direction the driver previously turned
the vehicle. Additionally, after turning in the opposite direction, the vehicle will want to lead or pull in
that direction.
Wander Description
Wander Description
Wander is the undesired drifting or deviation of a vehicle to either side from a straight path with
hand pressure on the steering wheel. Wander is a symptom of the vehicle's sensitivity to external
disturbances, such as road crown and crosswind, and accentuated by poor on-center steering feel.
Scrub Radius Description
Scrub Radius Description
Ideally, the scrub radius is as small as possible. Normally, the SAI angle and the centerline of the
tire and the wheel intersect below the road surface, causing a positive scrub radius. With struts, the
SAI angle is much larger than the long arm/short arm type of suspension. This allows the SAI angle
to intersect the camber angle above the road surface, forming a negative scrub radius. The smaller
the scrub radius, the better the directional stability. Installing aftermarket wheels that have
additional offset will dramatically increase the scrub radius. The newly installed wheels may cause
the centerline of the tires to move further away from the spindle. This will increase the scrub radius.
A large amount of scrub radius can cause severe shimmy after hitting a bump. Four-wheel drive
vehicles with large tires use a steering damper to compensate for an increased scrub radius. Scrub
radius is not directly measurable by the conventional methods. Scrub radius is projected
geometrically by engineers during the design phase of the suspension.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Description and Operation >
Page 12902
Alignment: Testing and Inspection
Trim Height Inspection
Trim Height Measurement
Trim height is a predetermined measurement relating to vehicle ride height. Incorrect trim heights
can cause the vehicle to bottom out over bumps, damage to the suspension components and
symptoms similar to wheel alignment problems. Check the trim heights when diagnosing
suspension concerns and before checking the wheel alignment.
Perform the following before measuring the trim heights:
* Set the tire pressure to the specifications shown on the certification label. Refer to Vehicle
Certification, Tire Place Card, Anti-Theft, and Service Parts ID Label.
* Check the fuel level. Add additional weight if necessary to simulate a full tank.
* Make sure the passenger and rear compartments are empty, except for the spare tire.
* Make sure the vehicle is on a flat and level surface, such as an alignment rack.
* Check that all the vehicle doors are securely closed.
* Check that the vehicle hood and rear deck lids are securely closed.
* Check for installed after market accessories or modifications that could affect trim height
measurement.
Important: All dimensions are measured vertical to the ground. Trim height should be within ±22.0
mm (±0.87 in) to be considered correct.
Measuring the Bumper Heights
Use the following procedure to check the front bumper height:
1. Jounce the front and rear of the vehicle a few times and allow the suspension to settle. 2. The
front bumper height measurement is taken outward 390 mm (15.35 in) from the center of the fascia
to ground level. Measurements are made
from the inner bumper core to ground level. Measure both sides and average the measurements.
3. Compare the measurement to the front bumper curb height specification. Refer to Trim Height
Specifications. 4. If the measurement is outside of the specified range, replace the front springs.
Refer to Strut, Strut Component and/or Spring Replacement. 5. Using your hands, lift the rear
bumper approximately 38 mm (1.59 in). 6. Gently remove your hands and allow the vehicle to
lower. 7. Using your hands, jounce the rear of the vehicle downward approximately 38 mm (1.59
in). 8. Gently remove your hands and allow the vehicle to rise. 9. The rear bumper height
measurement is taken outward 530 mm (20.86 in) from the center of the fascia to ground level.
Measurements are made
from the inner bumper core to ground level. Measure both sides and average the measurements.
10. Compare the measurement to the rear bumper curb height specification. Refer to Trim Height
Specifications. 11. If the measurement is outside of the specified range, replace the rear springs.
Refer to Coil Spring Replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Service and Repair >
Measuring Wheel Alignment
Alignment: Service and Repair Measuring Wheel Alignment
Measuring Wheel Alignment
Steering and vibration complaints are not always the result of improper alignment. One possible
cause is wheel and tire imbalance. Another possibility is tire lead due to worn or improperly
manufactured tires. Lead/pull is defined as follows: At a constant highway speed on a typical
straight road, lead/pull is the amount of effort required at the steering wheel to maintain the
vehicle's straight path. Lead is the vehicle deviation from a straight path on a level road without
pressure on the steering wheel. Refer to Radial Tire Lead/Pull Correction in order to determine if
the vehicle has a tire lead problem. See: Wheels and Tires/Testing and Inspection/Radial Tire
Lead/Pull Correction
Before performing any adjustment affecting wheel alignment, perform the following inspections and
adjustments in order to ensure correct alignment readings:
* Inspect the tires for the proper inflation and irregular tire wear. Refer to Vehicle Certification, Tire
Place Card, Anti-Theft, and Service Parts ID Label and Tire Diagnosis - Irregular or Premature
Wear.
* Inspect the runout of the wheels and the tires.
* Inspect the wheel bearings for backlash and excessive play.
* Inspect the ball joints and tie rod ends for looseness or wear.
* Inspect the control arms and stabilizer shaft for looseness or wear.
* Inspect the steering gear for looseness at the frame. Refer to Fastener Tightening Specifications.
* Inspect the struts/shock absorbers for wear, leaks, and any noticeable noises.
* Inspect the vehicle trim height.
* Inspect the steering wheel for excessive drag or poor return due to stiff or rusted linkage or
suspension components.
* Inspect the fuel level. The fuel tank should be full or the vehicle should have a compensating load
added.
Give consideration to excess loads, such as tool boxes, sample cases, etc. If normally carried in
the vehicle, these items should remain in the vehicle during alignment adjustments. Give
consideration also to the condition of the equipment being used for the alignment. Follow the
equipment manufacturer's instructions.
Satisfactory vehicle operation may occur over a wide range of alignment settings. However, if the
setting exceeds the service allowable specifications, correct the alignment to the service preferred
specifications. Refer to Wheel Alignment Specifications.
Perform the following steps in order to measure the front and rear alignment angles:
1. Install the alignment equipment according to the manufacturer's instructions. 2. Jounce the front
and the rear bumpers 3 times prior to checking the wheel alignment. 3. Measure the alignment
angles and record the readings.
Important: When performing adjustments to vehicles requiring a 4-wheel alignment, set the rear
wheel alignment angles first in order to obtain proper front alignment angles.
4. Adjust alignment angles to vehicle specification, if necessary. Refer to Wheel Alignment
Specifications.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Service and Repair >
Measuring Wheel Alignment > Page 12905
Alignment: Service and Repair Front Camber Adjustment
Front Camber Adjustment
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the wheel and tire
assemblies.
3. Remove the strut to knuckle nuts and bolts. Discard the nuts and bolts.
4. If the strut has not been previously modified, perform the following procedure:
1. Disconnect the strut from the knuckle.
Important:
* Maximum outboard adjustment-(increased negative camber) 2.0 mm of outboard elongation or to
within 11.0 mm from outboard
edge of lower strut clevis bracket, whichever comes first
* Maximum inboard adjustment-(increased positive camber) 4.0 mm of inboard elongation
* If filing the strut, paint the exposed metal with primer.
If increasing negative camber, remove material from the outside of the lower strut hole.
2. If decreasing negative camber, remove material from the inside of the lower strut hole.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Service and Repair >
Measuring Wheel Alignment > Page 12906
5. Loosely install new strut to knuckle nuts and bolts.
6. Adjust the camber to specifications by moving the top of the wheel in or out as necessary. Refer
to Wheel Alignment Specifications.
Notice: Refer to Fastener Notice.
7. Tighten strut to knuckle nuts and bolts.
Tighten the nuts and bolts to 180 N.m (133 lb ft).
8. Install the wheel and tire assemblies.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Service and Repair >
Measuring Wheel Alignment > Page 12907
Alignment: Service and Repair Front Toe Adjustment
Front Toe Adjustment
1. Position and lock the steering wheel with the vehicle with the wheels in the straight forward
position.
2. Loosen both inner tie rod jam nuts.
Important: The inner tie rod must rotate freely from the boot seal surface. Do not allow the boot to
rotate.
3. Loosen the inner tie rod seal to boot surface. 4. Use a wrench on the tie rod flats to increase or
decrease the toe angle specifications. Refer to Wheel Alignment Specifications.
Notice: Refer to Fastener Notice.
5. Tighten the inner tie rod jam nuts.
Tighten the jam nuts to 60 N.m (44 lb ft).
6. Inspect the toe angle to ensure proper adjustment and adjust as necessary.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Service and Repair >
Measuring Wheel Alignment > Page 12908
Alignment: Service and Repair
Measuring Wheel Alignment
Measuring Wheel Alignment
Steering and vibration complaints are not always the result of improper alignment. One possible
cause is wheel and tire imbalance. Another possibility is tire lead due to worn or improperly
manufactured tires. Lead/pull is defined as follows: At a constant highway speed on a typical
straight road, lead/pull is the amount of effort required at the steering wheel to maintain the
vehicle's straight path. Lead is the vehicle deviation from a straight path on a level road without
pressure on the steering wheel. Refer to Radial Tire Lead/Pull Correction in order to determine if
the vehicle has a tire lead problem. See: Wheels and Tires/Testing and Inspection/Radial Tire
Lead/Pull Correction
Before performing any adjustment affecting wheel alignment, perform the following inspections and
adjustments in order to ensure correct alignment readings:
* Inspect the tires for the proper inflation and irregular tire wear. Refer to Vehicle Certification, Tire
Place Card, Anti-Theft, and Service Parts ID Label and Tire Diagnosis - Irregular or Premature
Wear.
* Inspect the runout of the wheels and the tires.
* Inspect the wheel bearings for backlash and excessive play.
* Inspect the ball joints and tie rod ends for looseness or wear.
* Inspect the control arms and stabilizer shaft for looseness or wear.
* Inspect the steering gear for looseness at the frame. Refer to Fastener Tightening Specifications.
* Inspect the struts/shock absorbers for wear, leaks, and any noticeable noises.
* Inspect the vehicle trim height.
* Inspect the steering wheel for excessive drag or poor return due to stiff or rusted linkage or
suspension components.
* Inspect the fuel level. The fuel tank should be full or the vehicle should have a compensating load
added.
Give consideration to excess loads, such as tool boxes, sample cases, etc. If normally carried in
the vehicle, these items should remain in the vehicle during alignment adjustments. Give
consideration also to the condition of the equipment being used for the alignment. Follow the
equipment manufacturer's instructions.
Satisfactory vehicle operation may occur over a wide range of alignment settings. However, if the
setting exceeds the service allowable specifications, correct the alignment to the service preferred
specifications. Refer to Wheel Alignment Specifications.
Perform the following steps in order to measure the front and rear alignment angles:
1. Install the alignment equipment according to the manufacturer's instructions. 2. Jounce the front
and the rear bumpers 3 times prior to checking the wheel alignment. 3. Measure the alignment
angles and record the readings.
Important: When performing adjustments to vehicles requiring a 4-wheel alignment, set the rear
wheel alignment angles first in order to obtain proper front alignment angles.
4. Adjust alignment angles to vehicle specification, if necessary. Refer to Wheel Alignment
Specifications.
Front Caster Adjustment
Front Caster Adjustment
The front caster is not adjustable. If the front caster angle is not within specifications, inspect for
suspension support misalignment or front suspension damage. Refer to Alignment Checking.
Replace any damaged suspension components as necessary. See: Body and Frame/Testing and
Inspection/Component Tests and General Diagnostics/Alignment Checking
Front Camber Adjustment
Front Camber Adjustment
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the wheel and tire
assemblies.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Service and Repair >
Measuring Wheel Alignment > Page 12909
3. Remove the strut to knuckle nuts and bolts. Discard the nuts and bolts.
4. If the strut has not been previously modified, perform the following procedure:
1. Disconnect the strut from the knuckle.
Important:
* Maximum outboard adjustment-(increased negative camber) 2.0 mm of outboard elongation or to
within 11.0 mm from outboard
edge of lower strut clevis bracket, whichever comes first
* Maximum inboard adjustment-(increased positive camber) 4.0 mm of inboard elongation
* If filing the strut, paint the exposed metal with primer.
If increasing negative camber, remove material from the outside of the lower strut hole.
2. If decreasing negative camber, remove material from the inside of the lower strut hole.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Service and Repair >
Measuring Wheel Alignment > Page 12910
5. Loosely install new strut to knuckle nuts and bolts.
6. Adjust the camber to specifications by moving the top of the wheel in or out as necessary. Refer
to Wheel Alignment Specifications.
Notice: Refer to Fastener Notice.
7. Tighten strut to knuckle nuts and bolts.
Tighten the nuts and bolts to 180 N.m (133 lb ft).
8. Install the wheel and tire assemblies.
Front Toe Adjustment
Front Toe Adjustment
1. Position and lock the steering wheel with the vehicle with the wheels in the straight forward
position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Service and Repair >
Measuring Wheel Alignment > Page 12911
2. Loosen both inner tie rod jam nuts.
Important: The inner tie rod must rotate freely from the boot seal surface. Do not allow the boot to
rotate.
3. Loosen the inner tie rod seal to boot surface. 4. Use a wrench on the tie rod flats to increase or
decrease the toe angle specifications. Refer to Wheel Alignment Specifications.
Notice: Refer to Fastener Notice.
5. Tighten the inner tie rod jam nuts.
Tighten the jam nuts to 60 N.m (44 lb ft).
6. Inspect the toe angle to ensure proper adjustment and adjust as necessary.
Rear Camber Adjustment
Rear Camber Adjustment
1. Loosen the upper control arm-to-frame fastener enough to allow movement.
Important: The frame of the vehicle is slotted, turning the cam nut will move the camber in to the
designated location.
2. Rotate the upper control arm-to-frame fastener in the direction necessary to the correct the
camber measurement. 3. Snug the upper control arm-to-frame fastener, do not tighten at this time.
4. Reinspect the rear camber specifications and adjust as necessary.
Notice: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Alignment > System Information > Service and Repair >
Measuring Wheel Alignment > Page 12912
5. Hold the nut and tighten the upper control arm-to-frame bolt.
Tighten the bolt to 110 N.m (81 lb ft).
6. Repeat the procedure for the other rear wheel.
Rear Toe Adjustment
Rear Toe Adjustment
1. Loosen the toe link-to-frame fastener enough to allow for movement.
Important: The frame of the vehicle is slotted, a cam nut is available for service if required.
2. Rotate the toe link cam nut in the direction necessary to correct the toe angle. 3. Snug the toe
link-to-frame fastener, do not tighten at this time. 4. Reinspect the rear toe specifications and adjust
as necessary.
Notice: Refer to Fastener Notice.
5. Hold the nut and tighten the link-to-frame fastener bolt.
Tighten the bolt to 110 N.m (81 lb ft).
6. Repeat the procedure for the other rear wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A
> Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A
> Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 12923
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A
> Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 12924
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A
> Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 12925
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Recalls: > 07224A
> Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 12926
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Customer Interest:
> 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Steering Control Module: Customer Interest Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Customer Interest:
> 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page 12932
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Steering Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545 > Page 12938
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming >
Page 12943
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming >
Page 12944
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming >
Page 12945
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming >
Page 12946
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Steering Control Module: > 07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R)
Steering Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Steering Control Module: > 07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R) > Page
12952
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
12958
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
12959
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
12960
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Steering Control Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
12961
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Steering > Steering Control Module > Component Information > Technical Service Bulletins > Page 12962
Steering Control Module: Diagrams
Power Steering Connector End Views
Power Steering Control Module (PSCM)
Power Steering Control Module (PSCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Wheels and Tires > Tire Pressure Module > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs
Tire Pressure Module: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Relays and Modules - Steering and Suspension > Relays and
Modules - Wheels and Tires > Tire Pressure Monitor Receiver / Transponder > Component Information > Technical Service
Bulletins > Tire Monitor System - TPM Sensor Information
Tire Pressure Monitor Receiver / Transponder: Technical Service Bulletins Tire Monitor System TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Sensors and Switches - Steering and Suspension > Sensors
and Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs
Tire Pressure Sensor: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Sensors and Switches - Steering and Suspension > Sensors
and Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs > Page 12978
Tire Pressure Sensor: Technical Service Bulletins Tire Monitor System - TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Sensors and Switches - Steering and Suspension > Sensors
and Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs > Page 12979
Tire Pressure Sensor: Technical Service Bulletins Tires - Minimizing Damage to TPM Sensors
INFORMATION
Bulletin No.: 08-03-10-007
Date: May 16, 2008
Subject: Minimizing Damage to Tire Pressure Monitor (TPM) Sensors During Tire
Mounting/Dismounting
Models: 2009 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2009 and
Prior HUMMER H2, H3 2009 and Prior Saab 9-7X
with Wheel Mounted Tire Pressure Sensors
Minimizing Damage To TPM Sensors
All GM vehicles now in production and sold in the U.S., as well as many vehicles sold in Canada,
feature Tire Pressure Monitoring Systems that have valve stem mounted Tire Pressure Sensors.
When dismounting and mounting tires, care must be taken when breaking the bead loose from the
wheel. If the tire machines bead breaking fixture is positioned too close to the tire pressure sensor,
as the tire bead breaks away from the wheel it may be forced into, or catch on the edge of the tire
pressure sensor. This can damage the sensor and require the sensor to be replaced.
Care must also be taken when transferring the tire bead to the other side of the wheel rim. As the
tire machine rotates and the tire bead is stretched around the wheel rim, the bead can come in
contact with the sensor if it is not correctly positioned in relation to the mounting/dismounting head
prior to tire mounting/dismounting. This can also cause sensor damage requiring replacement.
Procedure
Notice:
Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in
order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result.
Notice:
Do not scratch or damage the clear coating on aluminum wheels with the tire changing equipment.
Scratching the clear coating could cause the aluminum wheel to corrode and the clear coating to
peel from the wheel.
1. Remove the valve core from the valve stem.
2. Deflate the tire completely.
Important:
Rim-clamp European-type tire changers are recommended.
3. Use the tire changer in order to remove the tire from the wheel. Follow steps 4-7 to remove the
tire from the wheel.
4. When separating the tire bead from the wheel position the bead breaking fixture 90, 180 and 270
degrees from the valve stem.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Sensors and Switches - Steering and Suspension > Sensors
and Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs > Page 12980
5. Position the wheel and tire so the valve stem is situated at the 2 o'clock position relative to the
head. The tire iron or pry bar can be inserted when prying the outer tire bead up and over the
mounting/dismounting head.
6. Position the wheel and tire so that the valve stem is situated again at the 2 o'clock position
relative to the head. The tire iron or pry bar can be inserted when prying the inner tire bead up and
over the mounting/dismounting head.
7. Remove all residual liquid sealant from the inside of the tire and wheel surfaces. If any tire
sealant is noted upon tire dismounting on vehicles equipped with TPM replace the tire pressure
sensor.
8. Use a wire brush or coarse steel wool in order to remove any rubber, light rust or corrosion from
the wheel bead seats.
Important:
If bead seat corrosion has been identified as an air loss concern on the wheel being worked on,
refer to GM Service Bulletin # 08-03-10-006 for additional information on correcting the leak.
9. Apply GM P/N 12345884 (in Canada, P/N 5728223) or equivalent to the tire bead and the wheel
rim.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Sensors and Switches - Steering and Suspension > Sensors
and Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs > Page 12981
10. Using the tire machine, rotate the tire/wheel assembly clockwise when transferring the tire bead
to the inside of the wheel rim.
11. Position the rim so that the valve stem (1) is situated at the 3 o'clock position relative to the
head (2). This will protect the sensor when the bottom bead seats.
12. After the bottom bead is on the wheel, reposition the wheel and tire so that the valve stem is
situated at the 9 o'clock position relative to the head. This will protect the sensor while mounting
the tire bead to the outside of the wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Sensors and Switches - Steering and Suspension > Sensors
and Switches - Wheels and Tires > Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS
System - Service And Re-Learning Sensor IDs > Page 12982
13. Use the tire changer in order to install the tire to the wheel.
Caution:
To avoid serious personal injury, do not stand over tire when inflating. The bead may break when
the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any
tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, lubricate
the beads and reinflate. Overinflating may cause the bead to break and cause serious personal
injury.
Important:
Allowable bead seating pressure is 345 kPa (50 psi) on Extended Mobility Tires.
14. Inflate the tire until it passes the bead humps. Be sure that the valve core is not installed at this
time.
15. Install the valve core to the valve core stem.
16. Inflate the tire to the proper air pressure.
17. Ensure that the locating rings are visible on both sides of the tire in order to verify that the tire
bead is fully seated on the wheel.
Parts Information
The product shown above is available from GM SPO.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Front Steering Knuckle > Component Information >
Service and Repair > Rear Suspension
Front Steering Knuckle: Service and Repair Rear Suspension
Knuckle Replacement
Removal Procedure
Tools Required
J 37043 Park Brake Cable Release Tool
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the tire and wheel.
3. Disconnect the rear park brake cable from the park brake actuator. 4. Using the J 37043, remove
the park brake cable from the mounting bracket
Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated
from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper
in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause
damage to the brake hose and in turn may cause a brake fluid leak.
5. Remove the brake caliper and bracket as an assembly and support it with heavy mechanics wire
or equivalent. 6. Remove the wheel bearing/hub assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Front Steering Knuckle > Component Information >
Service and Repair > Rear Suspension > Page 12988
7. Remove the upper control arm to knuckle bolt and nut.
8. Remove the lower control arm to knuckle bolt and nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Front Steering Knuckle > Component Information >
Service and Repair > Rear Suspension > Page 12989
9. Remove the toe link to knuckle bolt and nut.
10. Remove the 3 trailing arm to knuckle bolts. 11. Remove the knuckle from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Front Steering Knuckle > Component Information >
Service and Repair > Rear Suspension > Page 12990
1. Install the knuckle to the lower control arm. Loosely install the bolt and nut.
2. Install the knuckle to the upper control arm. Loosely install the bolt and nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Front Steering Knuckle > Component Information >
Service and Repair > Rear Suspension > Page 12991
3. Install the knuckle to the toe link. Loosely install the bolt and nut.
4. Install the 3 trailing arm to knuckle bolts. Loosely install the bolt and nut.
Notice: Refer to Fastener Notice.
5. Tighten the bolts and nuts in the following sequence:
* Tighten the knuckle to lower control arm bolt and nut to 160 N.m (118 lb ft).
* Tighten the knuckle to upper control arm bolt and nut to 160 N.m (118 lb ft).
* Tighten the knuckle to toe link bolt and nut to 160 N.m (118 lb ft).
* Tighten the 3 trailing arm to knuckle bolts to 110 N.m (81 lb ft).
6. Install the wheel bearing/hub assembly.
Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated
from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper
in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause
damage to the brake hose and in turn may cause a brake fluid leak.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Front Steering Knuckle > Component Information >
Service and Repair > Rear Suspension > Page 12992
7. Remove the supporting wire and position the brake caliper and bracket assemblies back onto
the knuckles.
8. Connect the rear park brake cable through the mounting bracket and onto the park brake
actuator. 9. Install the tire and wheel.
10. Lower the vehicle. 11. Perform a vehicle wheel alignment. Refer to Measuring Wheel
Alignment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Front Steering Knuckle > Component Information >
Service and Repair > Rear Suspension > Page 12993
Front Steering Knuckle: Service and Repair Front Suspension
Steering Knuckle Replacement
Tools Required
J-42188-B Ball Joint Separator
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the tire and wheel. 3. Remove
the wheel bearing/hub assembly.
Important: Do not allow the stabilizer link ball stud to rotate while removing the link nut.
4. Remove the nut and separate the stabilizer link from the strut assembly. 5. Loosen the steering
knuckle to strut bolts and nuts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Front Steering Knuckle > Component Information >
Service and Repair > Rear Suspension > Page 12994
6. Remove and discard the lower ball joint cotter pin. 7. Loosen the ball stud nut, until level with the
top of the ball stud. 8. Using the J-42188-B, separate the lower ball joint from the steering knuckle.
9. Remove the lower control arm and nut.
Important: Do not free the ball stud from the steering knuckle by use of a pickle fork or a wedge
type tool. Damage to the seal or bushing may result. Tip
10. Remove the tie rod.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Front Steering Knuckle > Component Information >
Service and Repair > Rear Suspension > Page 12995
11. Remove the steering knuckle to strut bolts and nuts. Discard the bolts and nuts. 12. Remove
the steering knuckle from the vehicle.
Installation Procedure
1. Position the steering knuckle to strut assembly.
2. Loosely install the strut to steering knuckle bolts and nuts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Front Steering Knuckle > Component Information >
Service and Repair > Rear Suspension > Page 12996
3. Position the lower ball joint stud into the steering knuckle.
Notice: Refer to Fastener Notice.
4. Using the SA9140E, install the ball stud nut.
Tighten the nut to 40 N.m (30 lb in).
5. Tighten the strut to steering knuckle bolts and nuts.
Tighten the bolts and nuts to 180 N.m (133 lb ft).
Important: Do not loosen the castle nut for cotter pin installation.
6. Tighten the castle nut enough to allow for cotter pin installation.
Important: The cotter pin must not contact the wheel speed sensor or drive axle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Front Steering Knuckle > Component Information >
Service and Repair > Rear Suspension > Page 12997
7. Install a new cotter pin. 8. Install the tie rod.
Important: Do not allow the stabilizer link ball stud to rotate while installing the link nut.
9. Position the stabilizer link to the strut assembly and install the nut.
Tighten the nut to 65 N.m (48 lb ft).
10. Install the wheel bearing/hub assembly. 11. Install the tire and wheel. 12. Lower the vehicle. 13.
Perform a wheel alignment. Refer to Measuring Wheel Alignment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Power Steering Fluid >
Component Information > Specifications
Power Steering Fluid: Specifications
POWER STEERING SYSTEM
GM Power Steering Fluid GM P/N 89021184 (Canadian P/N 89021186) or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Power Steering Motor >
Component Information > Technical Service Bulletins > Steering - Power Steering Pump Replacement Tips
Power Steering Motor: Technical Service Bulletins Steering - Power Steering Pump Replacement
Tips
INFORMATION
Bulletin No.: 06-02-32-013B
Date: August 07, 2009
Subject: Diagnostic Tips/Recommendations When Power Steering Pump Replacement is
Necessary
Models:
1997-2010 GM Passenger Cars and Light Duty Trucks (including Saturn) 2010 and Prior HUMMER
H2, H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to add model years and update the information. Please
discard Corporate Bulletin Number 06-02-32-013A (Section 02 - Steering).
A recently completed analysis of returned power steering (PS) pumps that had been replaced for
noise, no power assist, no or low pressure and leaking conditions has indicated a high number of
"No Trouble Found" results.
Corporate Bulletin Number 01-02-32-004 indicates that when attempting to repair a power steering
concern, the steering system analyzer should be utilized to assist the technician in a successful
diagnosis. Note- Saturn ASTRA does not utilize the Power Steering System Analyzer.
In addition, extensive warranty analysis has shown that the following situations are all significant
root causes of PS pump failures:
- Improper pulley installation
- Re-using the O-rings
- Using fluid other than the OE-specified steering fluid
- Failure to flush the PS system
In order to help improve customer satisfaction and reduce comebacks, GM recommends the
following tips for replacing a PS pump:
1. Low or no pressure from the PS pump may be the results of dirty or contaminated fluid, which
could cause the pressure relief valve to stop
functioning. Using the proper tools, flush and bleed the PS system. Any residual contaminants will
result in pump failure.
2. When removing the pulley, use the proper special tools. Because the pulley alignment is critical,
distorting the pulley may damage bearings on the
new PS pump.
Note Some new PS pumps may not include a new O-ring. Please refer to the appropriate Parts
Catalog. Saturn retailers should refer to the appropriate model year Parts & Illustration Catalog for
the vehicle.
3. Be sure to use only the new O-rings included with the PS pump. The new reservoir O-ring must
be lubricated with OE-specific PS fluid prior to
installation. Also make sure that the control valve O-ring is in its exact groove position and is NOT
covering the pressure bypass hole.
4. Bleed the PS system according to the procedures/recommendations in SI.
Following these procedures and using the correct tools and fluids should help ensure that the new
PS pump operates properly. Skipping steps may cost you time and trouble later.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign - ESC/Steering Module
Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign - ESC/Steering Module
Reprogramming > Page 13014
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign - ESC/Steering Module
Reprogramming > Page 13015
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign - ESC/Steering Module
Reprogramming > Page 13016
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign - ESC/Steering Module
Reprogramming > Page 13017
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 09-09-40-001A > Feb > 11 >
Restraints - Seat Belt Warning Lamp On/Buckling Issues
Seat Belt Buckle: All Technical Service Bulletins Restraints - Seat Belt Warning Lamp On/Buckling
Issues
INFORMATION
Bulletin No.: 09-09-40-001A
Date: February 02, 2011
Subject: Seat Belt Buckle Latching Issues and/or Seat Belt Warning Lights Illuminated
Models:
2011 and Prior GM Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7 X
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 09-09-40-001 (Section 09 - Restraints).
This bulletin is being published to advise dealers about seat belt buckles not operating and/or seat
belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle
release button sticking.
Analysis of warranty data has determined that this condition may be caused by sticky beverages
being spilled onto or into the seat belt buckle assembly. Foreign debris from food, candy wrappers,
paper and coins can also contribute to this condition.
Important If foreign material (debris) or sticky liquids are the cause of the concern, show the
customer the condition of the component (buckle assembly) and explain how it is affecting the
function of the restraint system. Strongly recommend that the component be replaced. Point out the
fact that this is not a manufacturing defect and is not covered by the new vehicle warranty. If the
customer declines to have parts replaced, the service department management must make a
notation on the service record that the lack of functionality of seating position with an inoperative
buckle was fully explained to the customer. The service department management must advise the
customer that having a non-functioning buckle in a seating position voids ability to use that seating
position (no one should ride in the seat). Also make the customer aware that it may be against the
law to ride in a vehicle without wearing a restraint system.
Important Never insert anything other than the seat belt latch plate into the buckle assembly. Do
not attempt to dig anything out of a buckle with a tool. Never try to wash out a buckle to remove a
spilled liquid as this may damage the buckle.
Use the following steps to determine the cause of the concern.
1. Inspect the buckle assembly with a light shining on the latch plate insertion area. Look for any
debris or foreign objects in the buckle. 2. If any debris or foreign objects are observed, try to
vacuum out the item. After the foreign material is removed, latch and unlatch the seat belt. If
the system functions properly, do not replace the seat belt buckle assembly.
3. If the condition has not been corrected, inspect the buckle assembly for any sticky residue. If
sticky residue is found, inform the customer that a
substance was spilled on the seat belt buckle assembly causing the malfunction. The buckle
assembly will need to be replaced at the customer's expense.
4. Refer to SI for seat belt component replacement.
Important If foreign material (debris) or sticky liquids are the cause of the concern, show the
customer the condition of the component (buckle assembly) and explain how it is affecting the
function of the restraint system. Strongly recommend that the component be replaced at the
customer's expense. Point out the fact that this is not a manufacturing defect and is not covered by
the new vehicle warranty. If the customer declines to have parts replaced, the service department
management must make a notation on the service record that the lack of functionality of seating
position with an inoperative buckle was fully explained to the customer. The service department
management must advise customer that having a non-functioning buckle in a seating position voids
ability to use that seating position (no one should ride in the seat). Also make the customer aware
that it may be against the law to ride in a vehicle without wearing a restraint system.
5. If further restraint diagnosis is required, refer to Seat Belt System Operational and Functional
Checks in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 09-09-40-001A > Feb > 11 >
Restraints - Seat Belt Warning Lamp On/Buckling Issues > Page 13023
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 07-09-40-002A > Jun > 09 >
Restraints - Seat Belt Latch Stop Button Availability
Seat Belt Buckle: All Technical Service Bulletins Restraints - Seat Belt Latch Stop Button
Availability
INFORMATION
Bulletin No.: 07-09-40-002A
Date: June 04, 2009
Subject: Seat Belt Latch Stop Button Available for Service
Models:
2005-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2010 HUMMER H2
2006-2010 HUMMER H3 2009-2010 HUMMER H3T
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
update the models and model years. Please discard Corporate Bulletin Number 07-09-40-002
(Section 09 - Restraints).
..............................................................................................................................................................
..................................................................................
All seat belt retractor assemblies contain a stop button. If a stop button becomes damaged, the
button can be replaced by ordering a replacement button through the GM Parts Catalog. The seat
belt retractor assembly does not need replacement.
Refer to the Seat Belt Latch Stop Installation procedure in SI for the complete installation
procedure.
Parts Information
For part numbers, usage and availability of stop buttons, see Stop Kit in Group 14.875 (cars) or
Group 16.714 (trucks) of the appropriate Parts Catalog. Saturn retailers should refer to the
appropriate model year Parts & Illustration Catalog for the vehicle.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Component Information > Technical Service Bulletins > Customer
Interest: > 09-09-40-001A > Feb > 11 > Restraints - Seat Belt Warning Lamp On/Buckling Issues
Seat Belt Buckle: Customer Interest Restraints - Seat Belt Warning Lamp On/Buckling Issues
INFORMATION
Bulletin No.: 09-09-40-001A
Date: February 02, 2011
Subject: Seat Belt Buckle Latching Issues and/or Seat Belt Warning Lights Illuminated
Models:
2011 and Prior GM Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7 X
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 09-09-40-001 (Section 09 - Restraints).
This bulletin is being published to advise dealers about seat belt buckles not operating and/or seat
belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle
release button sticking.
Analysis of warranty data has determined that this condition may be caused by sticky beverages
being spilled onto or into the seat belt buckle assembly. Foreign debris from food, candy wrappers,
paper and coins can also contribute to this condition.
Important If foreign material (debris) or sticky liquids are the cause of the concern, show the
customer the condition of the component (buckle assembly) and explain how it is affecting the
function of the restraint system. Strongly recommend that the component be replaced. Point out the
fact that this is not a manufacturing defect and is not covered by the new vehicle warranty. If the
customer declines to have parts replaced, the service department management must make a
notation on the service record that the lack of functionality of seating position with an inoperative
buckle was fully explained to the customer. The service department management must advise the
customer that having a non-functioning buckle in a seating position voids ability to use that seating
position (no one should ride in the seat). Also make the customer aware that it may be against the
law to ride in a vehicle without wearing a restraint system.
Important Never insert anything other than the seat belt latch plate into the buckle assembly. Do
not attempt to dig anything out of a buckle with a tool. Never try to wash out a buckle to remove a
spilled liquid as this may damage the buckle.
Use the following steps to determine the cause of the concern.
1. Inspect the buckle assembly with a light shining on the latch plate insertion area. Look for any
debris or foreign objects in the buckle. 2. If any debris or foreign objects are observed, try to
vacuum out the item. After the foreign material is removed, latch and unlatch the seat belt. If
the system functions properly, do not replace the seat belt buckle assembly.
3. If the condition has not been corrected, inspect the buckle assembly for any sticky residue. If
sticky residue is found, inform the customer that a
substance was spilled on the seat belt buckle assembly causing the malfunction. The buckle
assembly will need to be replaced at the customer's expense.
4. Refer to SI for seat belt component replacement.
Important If foreign material (debris) or sticky liquids are the cause of the concern, show the
customer the condition of the component (buckle assembly) and explain how it is affecting the
function of the restraint system. Strongly recommend that the component be replaced at the
customer's expense. Point out the fact that this is not a manufacturing defect and is not covered by
the new vehicle warranty. If the customer declines to have parts replaced, the service department
management must make a notation on the service record that the lack of functionality of seating
position with an inoperative buckle was fully explained to the customer. The service department
management must advise customer that having a non-functioning buckle in a seating position voids
ability to use that seating position (no one should ride in the seat). Also make the customer aware
that it may be against the law to ride in a vehicle without wearing a restraint system.
5. If further restraint diagnosis is required, refer to Seat Belt System Operational and Functional
Checks in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Component Information > Technical Service Bulletins > Customer
Interest: > 09-09-40-001A > Feb > 11 > Restraints - Seat Belt Warning Lamp On/Buckling Issues > Page 13035
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Component Information > Technical Service Bulletins > All
Technical Service Bulletins for Seat Belt Buckle: > 09-09-40-001A > Feb > 11 > Restraints - Seat Belt Warning Lamp
On/Buckling Issues
Seat Belt Buckle: All Technical Service Bulletins Restraints - Seat Belt Warning Lamp On/Buckling
Issues
INFORMATION
Bulletin No.: 09-09-40-001A
Date: February 02, 2011
Subject: Seat Belt Buckle Latching Issues and/or Seat Belt Warning Lights Illuminated
Models:
2011 and Prior GM Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7 X
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 09-09-40-001 (Section 09 - Restraints).
This bulletin is being published to advise dealers about seat belt buckles not operating and/or seat
belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle
release button sticking.
Analysis of warranty data has determined that this condition may be caused by sticky beverages
being spilled onto or into the seat belt buckle assembly. Foreign debris from food, candy wrappers,
paper and coins can also contribute to this condition.
Important If foreign material (debris) or sticky liquids are the cause of the concern, show the
customer the condition of the component (buckle assembly) and explain how it is affecting the
function of the restraint system. Strongly recommend that the component be replaced. Point out the
fact that this is not a manufacturing defect and is not covered by the new vehicle warranty. If the
customer declines to have parts replaced, the service department management must make a
notation on the service record that the lack of functionality of seating position with an inoperative
buckle was fully explained to the customer. The service department management must advise the
customer that having a non-functioning buckle in a seating position voids ability to use that seating
position (no one should ride in the seat). Also make the customer aware that it may be against the
law to ride in a vehicle without wearing a restraint system.
Important Never insert anything other than the seat belt latch plate into the buckle assembly. Do
not attempt to dig anything out of a buckle with a tool. Never try to wash out a buckle to remove a
spilled liquid as this may damage the buckle.
Use the following steps to determine the cause of the concern.
1. Inspect the buckle assembly with a light shining on the latch plate insertion area. Look for any
debris or foreign objects in the buckle. 2. If any debris or foreign objects are observed, try to
vacuum out the item. After the foreign material is removed, latch and unlatch the seat belt. If
the system functions properly, do not replace the seat belt buckle assembly.
3. If the condition has not been corrected, inspect the buckle assembly for any sticky residue. If
sticky residue is found, inform the customer that a
substance was spilled on the seat belt buckle assembly causing the malfunction. The buckle
assembly will need to be replaced at the customer's expense.
4. Refer to SI for seat belt component replacement.
Important If foreign material (debris) or sticky liquids are the cause of the concern, show the
customer the condition of the component (buckle assembly) and explain how it is affecting the
function of the restraint system. Strongly recommend that the component be replaced at the
customer's expense. Point out the fact that this is not a manufacturing defect and is not covered by
the new vehicle warranty. If the customer declines to have parts replaced, the service department
management must make a notation on the service record that the lack of functionality of seating
position with an inoperative buckle was fully explained to the customer. The service department
management must advise customer that having a non-functioning buckle in a seating position voids
ability to use that seating position (no one should ride in the seat). Also make the customer aware
that it may be against the law to ride in a vehicle without wearing a restraint system.
5. If further restraint diagnosis is required, refer to Seat Belt System Operational and Functional
Checks in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Component Information > Technical Service Bulletins > All
Technical Service Bulletins for Seat Belt Buckle: > 09-09-40-001A > Feb > 11 > Restraints - Seat Belt Warning Lamp
On/Buckling Issues > Page 13041
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Component Information > Technical Service Bulletins > All
Technical Service Bulletins for Seat Belt Buckle: > 07-09-40-002A > Jun > 09 > Restraints - Seat Belt Latch Stop Button
Availability
Seat Belt Buckle: All Technical Service Bulletins Restraints - Seat Belt Latch Stop Button
Availability
INFORMATION
Bulletin No.: 07-09-40-002A
Date: June 04, 2009
Subject: Seat Belt Latch Stop Button Available for Service
Models:
2005-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2010 HUMMER H2
2006-2010 HUMMER H3 2009-2010 HUMMER H3T
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
update the models and model years. Please discard Corporate Bulletin Number 07-09-40-002
(Section 09 - Restraints).
..............................................................................................................................................................
..................................................................................
All seat belt retractor assemblies contain a stop button. If a stop button becomes damaged, the
button can be replaced by ordering a replacement button through the GM Parts Catalog. The seat
belt retractor assembly does not need replacement.
Refer to the Seat Belt Latch Stop Installation procedure in SI for the complete installation
procedure.
Parts Information
For part numbers, usage and availability of stop buttons, see Stop Kit in Group 14.875 (cars) or
Group 16.714 (trucks) of the appropriate Parts Catalog. Saturn retailers should refer to the
appropriate model year Parts & Illustration Catalog for the vehicle.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Component Information > Technical Service Bulletins > All Other
Service Bulletins for Seat Belt Buckle: > 07-09-40-002A > Jun > 09 > Restraints - Seat Belt Latch Stop Button Availability
Seat Belt Buckle: All Technical Service Bulletins Restraints - Seat Belt Latch Stop Button
Availability
INFORMATION
Bulletin No.: 07-09-40-002A
Date: June 04, 2009
Subject: Seat Belt Latch Stop Button Available for Service
Models:
2005-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2010 HUMMER H2
2006-2010 HUMMER H3 2009-2010 HUMMER H3T
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
update the models and model years. Please discard Corporate Bulletin Number 07-09-40-002
(Section 09 - Restraints).
..............................................................................................................................................................
..................................................................................
All seat belt retractor assemblies contain a stop button. If a stop button becomes damaged, the
button can be replaced by ordering a replacement button through the GM Parts Catalog. The seat
belt retractor assembly does not need replacement.
Refer to the Seat Belt Latch Stop Installation procedure in SI for the complete installation
procedure.
Parts Information
For part numbers, usage and availability of stop buttons, see Stop Kit in Group 14.875 (cars) or
Group 16.714 (trucks) of the appropriate Parts Catalog. Saturn retailers should refer to the
appropriate model year Parts & Illustration Catalog for the vehicle.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Component Information > Service and Repair > Front Seat Belt
Buckle Replacement
Seat Belt Buckle: Service and Repair Front Seat Belt Buckle Replacement
Front Seat Belt Buckle Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > Component Information > Service and Repair > Front Seat Belt
Buckle Replacement > Page 13053
Seat Belt Buckle: Service and Repair Seat Belt Buckle Replacement - Center Rear
Seat Belt Buckle Replacement - Center Rear
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
09-09-40-001A > Feb > 11 > Restraints - Seat Belt Warning Lamp On/Buckling Issues
Steering Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
09-09-40-001A > Feb > 11 > Restraints - Seat Belt Warning Lamp On/Buckling Issues > Page 13059
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07-09-40-002A > Jun > 09 > Recalls: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07-09-40-002A > Jun > 09 > Recalls: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
13068
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07-09-40-002A > Jun > 09 > Recalls: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
13069
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07-09-40-002A > Jun > 09 > Recalls: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
13070
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07-09-40-002A > Jun > 09 > Recalls: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page
13071
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07-09-40-002A > Jun > 09 > All Other Service Bulletins for Steering Control Module: > 07-02-32-009 > Sep > 07 >
Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Steering Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07-09-40-002A > Jun > 09 > All Other Service Bulletins for Steering Control Module: > 07-02-32-009 > Sep > 07 >
Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page 13077
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Belt Buckle: > 07-02-32-009 >
Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Steering Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Belt Buckle: > 07-02-32-009 >
Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page 13083
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Belt Buckle: > 07224A > Sep >
07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Belt Buckle: > 07224A > Sep >
07 > Campaign - ESC/Steering Module Reprogramming > Page 13088
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Belt Buckle: > 07224A > Sep >
07 > Campaign - ESC/Steering Module Reprogramming > Page 13089
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Belt Buckle: > 07224A > Sep >
07 > Campaign - ESC/Steering Module Reprogramming > Page 13090
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Belt Buckle: > 07224A > Sep >
07 > Campaign - ESC/Steering Module Reprogramming > Page 13091
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Component Information > Technical Service Bulletins > Cooling System, A/C - Aluminum Heater
Cores/Radiators
Heater Core: Technical Service Bulletins Cooling System, A/C - Aluminum Heater Cores/Radiators
INFORMATION
Bulletin No.: 05-06-02-001A
Date: July 16, 2008
Subject: Information On Aluminum Heater Core and/or Radiator Replacement
Models: 2005 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2005
HUMMER H2
Supercede:
This bulletin is being revised to update the Warranty Information. Please discard Corporate Bulletin
Number 05-06-02-001 (Section 06 - Engine/Propulsion System).
Important:
2004-05 Chevrolet Aveo (Pontiac Wave, Canada Only) does not use DEX-COOL(R). Refer to the
flushing procedure explained later in this bulletin.
The following information should be utilized when servicing aluminum heater core and/or radiators
on repeat visits. A replacement may be necessary because erosion, corrosion, or insufficient
inhibitor levels may cause damage to the heater core, radiator or water pump. A coolant check
should be performed whenever a heater core, radiator, or water pump is replaced. The following
procedures/ inspections should be done to verify proper coolant effectiveness.
Caution:
To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot.
The cooling system will release scalding fluid and steam under pressure if the radiator cap or surge
tank cap is removed while the engine and radiator are still hot.
Important:
If the vehicle's coolant is low, drained out, or the customer has repeatedly added coolant or water
to the system, then the system should be completely flushed using the procedure explained later in
this bulletin.
Technician Diagnosis
^ Verify coolant concentration. A 50% coolant/water solution ensures proper freeze and corrosion
protection. Inhibitor levels cannot be easily measured in the field, but can be indirectly done by the
measurement of coolant concentration. This must be done by using a Refractometer J 23688
(Fahrenheit scale) or J 26568 (centigrade scale), or equivalent, coolant tester. The Refractometer
uses a minimal amount of coolant that can be taken from the coolant recovery reservoir, radiator or
the engine block. Inexpensive gravity float testers (floating balls) will not completely analyze the
coolant concentration fully and should not be used. The concentration levels should be between
50% and 65% coolant concentrate. This mixture will have a freeze point protection of -34 degrees
Fahrenheit (-37 degrees Celsius). If the concentration is below 50%, the cooling system must be
flushed.
^ Inspect the coolant flow restrictor if the vehicle is equipped with one. Refer to Service Information
(SI) and/or the appropriate Service Manual for component location and condition for operation.
^ Verify that no electrolysis is present in the cooling system. This electrolysis test can be performed
before or after the system has been repaired. Use a digital voltmeter set to 12 volts. Attach one test
lead to the negative battery post and insert the other test lead into the radiator coolant, making sure
the lead does not touch the filler neck or core. Any voltage reading over 0.3 volts indicates that
stray current is finding its way into the coolant. Electrolysis is often an intermittent condition that
occurs when a device or accessory that is mounted to the radiator is energized. This type of current
could be caused from a poorly grounded cooling fan or some other accessory and can be verified
by watching the volt meter and turning on and off various accessories or engage the starter motor.
Before using one of the following flush procedures, the coolant recovery reservoir must be
removed, drained, cleaned and reinstalled before refilling the system.
Notice:
^ Using coolant other than DEX‐COOL(R) may cause premature engine, heater core or
radiator corrosion. In addition, the engine coolant may require changing sooner, at 30,000 miles
(50,000 km) or 24 months, whichever occurs first. Any repairs would not be covered by your
warranty. Always use DEX‐COOL(R) (silicate free) coolant in your vehicle.
^ If you use an improper coolant mixture, your engine could overheat and be badly damaged. The
repair cost would not be covered by your warranty. Too much water in the mixture can freeze and
crack the engine, radiator, heater core and other parts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Component Information > Technical Service Bulletins > Cooling System, A/C - Aluminum Heater
Cores/Radiators > Page 13095
Flushing Procedures using DEX-COOL(R)
Important:
The following procedure recommends refilling the system with DEX-COOL(R), P/N 12346290 (in
Canada, use P/N 10953464), GM specification 6277M. This coolant is orange in color and has a
service interval of 5 years or 240,000 km (150,000 mi). However, when used on vehicles built prior
to the introduction of DEX-COOL(R), maintenance intervals will remain the same as specified in the
Owner's Manual.
^ If available, use the approved cooling system flush and fill machine (available through the GM
Dealer Equipment Program) following the manufacturer's operating instructions.
^ If approved cooling system flush and fill machine is not available, drain the coolant and dispose of
properly following the draining procedures in the appropriate Service Manual. Refill the system
using clear, drinkable water and run the vehicle until the thermostat opens. Repeat and run the
vehicle three (3) times to totally remove the old coolant or until the drained coolant is almost clear.
Once the system is completely flushed, refill the cooling system to a 50%-60% concentration with
DEX‐COOL(R), P/N 12346290 (in Canada, use P/N 10953464), GM specification 6277M,
following the refill procedures in the appropriate Service Manual.
If a Service Manual is not available, fill half the capacity of the system with 100% DEX-COOL(R),
P/N 12346290 (in Canada, use P/N 10953464), GM specification 6277M. Then slowly add clear,
drinkable water (preferably distilled) to the system until the level of the coolant mixture has reached
the base of the radiator neck. Wait two (2) minutes and reverify the coolant level. If necessary, add
clean water to restore the coolant to the appropriate level.
Once the system is refilled, reverify the coolant concentration using a Refractometer J 23688
(Fahrenheit scale) or J 26568 (centigrade scale) coolant tester, or equivalent. The concentration
levels should be between 50% and 65%.
Flushing Procedures using Conventional Silicated (Green Colored) Coolant
Important:
2004-2005 Chevrolet Aveo (Pontiac Wave, Canada Only) does not use DEX‐COOL(R).
The Aveo and Wave are filled with conventional, silicated engine coolant that is blue in color.
Silicated coolants are typically green in color and are required to be drained, flushed and refilled
every 30,000 miles (48,000 km). The Aveo and Wave are to be serviced with conventional, silicated
coolant. Use P/N 12378560 (1 gal) (in Canada, use P/N 88862159 (1 L). Refer to the Owner's
Manual or Service Information (SI) for further information on OEM coolant.
Important:
Do not mix the OEM orange colored DEX-COOL(R) coolant with green colored coolant when
adding coolant to the system or when servicing the vehicle's cooling system. Mixing the orange and
green colored coolants will produce a brown coolant which may be a customer dissatisfier and will
not extend the service interval to that of DEX-COOL(R). Conventional silicated coolants offered by
GM Service and Parts Operations are green in color.
^ If available, use the approved cooling system flush and fill machine (available through the GM
Dealer Equipment Program) following the manufacturer's operating instructions.
^ If approved cooling systems flush and fill machine is not available, drain coolant and dispose of
properly following the draining procedures in appropriate Service Manual. Refill the system using
clear, drinkable water and run vehicle until thermostat opens. Repeat and run vehicle three (3)
times to totally remove old coolant or until drained coolant is almost clear. Once the system is
completely flushed, refill the cooling system to a 50%-60% concentration with a good quality
ethylene glycol base engine coolant, P/N 12378560, 1 gal (in Canada, use P/N 88862159 1 L),
conforming to GM specification 1825M, or recycled coolant conforming to GM specification 1825M,
following the refill procedures in the appropriate Service Manual.
If a Service Manual is not available, fill half the capacity of the system with 100% good quality
ethylene glycol base (green colored) engine coolant, P/N 12378560 1 gal., (in Canada, use P/N
88862159 1 L) conforming to GM specification 1825M. Then slowly add clear, drinkable water
(preferably distilled) to system until the level of the coolant mixture has reached the base of the
radiator neck. Wait two (2) minutes and recheck coolant level. If necessary, add clean water to
restore coolant to the appropriate level.
Once the system is refilled, recheck the coolant concentration using a Refractometer J 23688
(Fahrenheit scale) or J 26568 (centigrade scale) coolant tester, or equivalent. Concentration levels
should be between 50% and 65%.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Component Information > Technical Service Bulletins > Cooling System, A/C - Aluminum Heater
Cores/Radiators > Page 13096
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Component Information > Technical Service Bulletins > Page 13097
Heater Core: Service and Repair
Heater Core Replacement
Removal Procedure
1. Remove the HVAC module from the vehicle.
2. Remove the heater core cover screws from the HVAC module.
3. Remove the heater core cover from the HVAC module.
4. Remove the heater core from the HVAC module.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Power Steering > Steering Control Module >
Component Information > Component Information > Technical Service Bulletins > Page 13098
1. Install the heater core to the HVAC module.
2. Install the heater core cover to the HVAC module.
Notice: Refer to Fastener Notice.
3. Install the heater core cover screws to the HVAC module.
Tighten the screw to 1.5 N.m (13 lb in).
4. Install the HVAC module to the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign ESC/Steering Module Reprogramming > Page 13108
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign ESC/Steering Module Reprogramming > Page 13109
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign ESC/Steering Module Reprogramming > Page 13110
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > Recalls: > 07224A > Sep > 07 > Campaign ESC/Steering Module Reprogramming > Page 13111
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > Customer Interest: > 07-02-32-009 > Sep > 07 >
Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Steering Control Module: Customer Interest Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > Customer Interest: > 07-02-32-009 > Sep > 07 >
Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page 13117
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Steering Control
Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Steering Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Steering Control
Module: > 07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page 13123
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Steering Control
Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Steering Control
Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 13128
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Steering Control
Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 13129
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Steering Control
Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 13130
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Steering Control
Module: > 07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 13131
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545
Steering Control Module: All Technical Service Bulletins Brakes/Steering - DTC's
C0252/C0460/C056E/C0460/C0545
Bulletin No.: 07-02-32-009
Date: September 28, 2007
INFORMATION
Subject: Information on Electronic Brake Control Module Set DTCs C0252/C0460 and Power
Steering Control Module Set DTCs C056E/C0460/C0545
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
If any of the following DTCs are found (current or history), the following procedure should be
performed before any components are replaced.
C0252 4A
C0460 71
C0460 4B
C0460 5A
C0460 42
C056E 4B (history only)
C0545 00 (history only)
Make sure the Tech 2(R) is updated with version 27.010 or later.
Reprogram the electronic brake control module (EBCM) software with the latest version.
Reprogram the power steering control module (PSCM) software with the latest version.
After the software has been updated, perform the following checks using the Tech 2(R):
Verify under the diagnostic menu that the STEERING WHEEL ANGLE reads zero when the wheels
are pointed straight ahead.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE SENSOR CALIBRATION
STATUS reads calibrated.
Verify under the diagnostic menu that the STEERING WHEEL ANGLE VALIDITY reads valid.
If any of the above checks are incorrect, perform the following procedure using the Tech 2(R):
Clear all the codes.
Perform the "Steering Pos./Torque Sensor Calibration" in the power steering control module.
During the calibration procedure steering assist will not function. Raising the vehicle off the ground
will reduce the steering loads and make it easier to perform the procedure.
Perform the "Steering Pos. Sensor Calibration" in the electronic brake control module.
Verify that there are no DTCs.
Test drive the vehicle.
The "SERVICE STABILITRAK" message may stay on after the codes have been cleared. It may be
necessary to drive the vehicle before the message turns off. This allows the EBCM to verify that no
malfunctions exist before turning off the message.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07-02-32-009 > Sep > 07 > Brakes/Steering - DTC's C0252/C0460/C056E/C0460/C0545 > Page 13137
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming
Technical Service Bulletin # 07224A Date: 070911
Campaign - ESC/Steering Module Reprogramming
Subject: Customer Satisfaction - Electronic Stability Control (ESC) Disabled without Warning Reprogram Computer Module # 07224A - (09/11/2007)
Models: 2007-2008 Chevrolet Equinox Equipped with a 3.4L Engine (RPO LNJ) 2007-2008 Pontiac
Torrent Equipped with a 3.4L Engine (RPO LNJ) 2008 Saturn VUE Equipped with a 2.4L Engine
(RPO LE5)
THE LABOR TIME IN THIS BULLETIN HAS BEEN REVISED. SOME VEHICLES WILL REQUIRE
POWER STEERING CONTROL MODULE PROGRAMMING IN ADDITION TO THE EBCM
PROGRAMMING. TIS2WEB WILL INSTRUCT THE TECHNICIAN IF THIS ADDITIONAL
PROGRAMMING IS REQUIRED. PLEASE DISCARD ALL COPIES OF BULLETIN 07224,
ISSUED SEPTEMBER 2007.
THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2008.
Condition
Certain 2007-2008 model year Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 model year Saturn VUE vehicles equipped with a 2.4L engine
(RPO LE5) may have a condition where the Electronic Stability Control (ESC) becomes disabled
without the illumination of the warning light or DIC message. This condition can occur when the
driver leaves the ignition key in the accessory position for more than 2 seconds before starting the
vehicle. The system will reset when the vehicle is turned off but may occur again if the condition is
repeated.
Correction
Dealers/retailers are to reprogram the electronic brake control module (EBCM).
Vehicles Involved
Involved are certain 2007-2008 Chevrolet Equinox and Pontiac Torrent vehicles equipped with a
3.4L engine (RPO LNJ); and 2008 Saturn VUE vehicles equipped with a 2.4L engine (RPO LE5)
and built within the VIN breakpoints shown.
IMPORTANT:
Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using the system(s)
below. Not all vehicles within the above breakpoints may be involved.
-- GM dealers and Canadian Saturn/Saab retailers should use GMVIS.
-- Saturn US retailers should use AS400 system.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided through the applicable system listed below. Dealers/retailers will not have a report
available if they have no involved vehicles currently assigned.
-- US GM dealers - GM DealerWorld Recall Information
-- Canadian GM/Saturn/Saab dealers/retailers - GMinfoNet Recall Reports
-- US Saturn retailers - Facility VIN List (included with bulletin in GM DealerWorld)
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 13143
data for any purpose other than follow-up necessary to complete this program is a violation of law
in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.
Parts Information
No parts are required for this program.
Service Procedure
Tech 2 Legacy or J2534 Pass-Thru Programming Method for the EBCM
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC). A "Candi" module is necessary.
Calibration Information
CALIBRATION INFORMATION Do not attempt to order the calibration number from GMSPO. The
calibration numbers required for this service procedure are programmed into control modules via a
Techline Tech 2(R) scan tool and TIS 2 Web with the calibration update. Use TIS 2 Web version
9.0 for 2007 (available on 09/03/07). If you cannot access the calibration, call the Techline
Customer Support Center at 1-800-828-6860 (English) or 1-800-503-3222 (French) and it will be
provided.
NOTICE:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
2. Reprogram the electronic brake control module (EBCM). Refer to SI and Service Programming
System (SPS) documentation for EBCM programming instructions, if required.
3. Saturn Only: If the vehicle is involved in customer satisfaction program 07232 and the repair has
not been performed, perform the repair at this time.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
GM Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines. Saturn US retailers should refer to GM messenger bulletins
SAG20060292/SAG20060295 for Courtesy Transportation guidelines. Saturn Canada retailers
should refer to applicable Home Office letter on this subject.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 13144
Claim Information - GM and Saturn Canada Only
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Claim Information - Saturn US Only
Customer Notification - US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer/Retailer Program Responsibility
All unsold new vehicles in dealers/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through September 30, 2008.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is shown in this bulletin for your
use in contacting customers. Program follow-up cards should not be used for this purpose, since
the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through September 30, 2008, you must take the steps necessary to
be sure the program correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 13145
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Steering Control Module: >
07224A > Sep > 07 > Campaign - ESC/Steering Module Reprogramming > Page 13146
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Relays and Modules - Steering > Steering Control
Module > Component Information > Technical Service Bulletins > Page 13147
Steering Control Module: Diagrams
Power Steering Connector End Views
Power Steering Control Module (PSCM)
Power Steering Control Module (PSCM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Column > Air Bag(s) Arming and Disarming
> System Information > Service and Repair
Air Bag(s) Arming and Disarming: Service and Repair
SIR Disabling and Enabling
SIR component location affects how a vehicle should be serviced. There are parts of the SIR
system installed in various locations around a vehicle. To find the location of the SIR components
refer to SIR Identification Views.
There are several reasons for disabling the SIR system, such as repairs to the SIR system or
servicing a component near or attached to an SIR component. There are several ways to disable
the SIR system depending on what type of service is being performed. The following information
covers the proper procedures for disabling/enabling the SIR system.
SIR Service Precautions
Caution: When performing service on or near the SIR components or the SIR wiring, the SIR
system must be disabled. Failure to observe the correct procedure could cause deployment of the
SIR components. Serious injury can occur. Failure to observe the correct procedure could also
result in unnecessary SIR system repairs.
The inflatable restraint sensing and diagnostic module (SDM) maintains a reserved energy supply.
The reserved energy supply provides deployment power for the air bags if the SDM loses battery
power during a collision. Deployment power is available for as much as 1 minute after
disconnecting the vehicle power. Waiting 1 minute before working on the system after disabling the
SIR system prevents deployment of the air bags from the reserved energy supply.
General Service Instructions
The following are general service instructions which must be followed in order to properly repair the
vehicle and return it to its original integrity:
* Do not expose inflator modules to temperatures above 65°C (150°F).
* Verify the correct replacement part number. Do not substitute a component from a different
vehicle.
* Use only original GM replacement parts available from your authorized GM dealer. Do not use
salvaged parts for repairs to the SIR system.
Discard any of the following components if it has been dropped from a height of 91 cm (3 feet) or
greater:
* Inflatable restraint sensing and diagnostic module (SDM)
* Any Inflatable restraint air bag module
* Inflatable restraint steering wheel module coil
* Any Inflatable restraint sensor
* Inflatable restraint seat belt pretensioners
* Inflatable restraint Passenger Presence System (PPS) module or sensor
Disabling Procedure - Air Bag Fuse
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position.
Important: The SDM may have more than one fused power input. To ensure there is no unwanted
SIR deployment, personal injury, or unnecessary SIR system repairs, remove all fuses supplying
power to the SDM. With all SDM fuses removed and the ignition switch in the ON position, the AIR
BAG warning indicator illuminates. This is normal operation, and does not indicate a SIR system
malfunction.
3. Locate and remove the fuse(s) supplying power to the SDM. 4. Wait 1 minute before working on
the system.
Enabling Procedure - Air Bag Fuse
1. Place the ignition in the OFF position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Column > Air Bag(s) Arming and Disarming
> System Information > Service and Repair > Page 13152
2. Install the fuse(s) supplying power to the SDM. 3. Turn the ignition switch to the ON position.
The AIR BAG indicator will flash then turn OFF. 4. Perform the Diagnostic System Check - Vehicle
if the AIR BAG warning indicator does not operate as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Disabling Procedure - Negative Battery Cable
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position. 3. Disconnect the negative battery cable from the battery. 4. Wait 1
minute before working on system.
Enabling Procedure - Negative Battery Cable
1. Place the ignition in the OFF position. 2. Connect the negative battery cable to the battery. 3.
Turn the ignition switch to the ON position. The AIR BAG indicator will flash then turn OFF. 4.
Perform the Diagnostic System Check - Vehicle if the AIR BAG warning indicator does not operate
as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Gear > Component Information > Service
and Repair
Steering Gear: Service and Repair
Power Steering Gear Replacement
Tools Required
J 24319-B Steering Linkage and Tie Rod Puller
Removal Procedure
Notice: Secure the steering wheel utilizing a strap to prevent rotation. Locking of the steering
column will prevent damage and a possible malfunction of the SIR system. The steering wheel
must be secured in position before disconnecting the following components:
* The steering column
* The intermediate shaft
* The steering gear
After disconnecting these components, do not move the front tires and wheels. Failure to follow
these procedures may cause improper alignment of some components during installation and
result in possible damage to the SIR coil.
Raise and support the vehicle. Refer to Vehicle Lifting.
1. Remove the front tires.
2. Remove both outer tie rod to steering knuckle nuts. Discard the nuts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Gear > Component Information > Service
and Repair > Page 13156
Notice: Do not free the ball stud by using a pickle fork or a wedge-type tool. Damage to the seal or
bushing may result.
Important: Hold the ball stud to prevent turning during removal of the nut.
3. Using the J 24319-B, separate the tie rods from the steering knuckles.
4. Rotate the intermediate steering shaft in order to gain access to the intermediate shaft pinch
bolt. 5. Remove the intermediate to steering gear pinch bolt. Discard the bolt. 6. Disconnect the
intermediate shaft from the steering gear.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Gear > Component Information > Service
and Repair > Page 13157
7. Disconnect the stabilizer links from the stabilizer bar.
8. Remove the steering gear to cradle mounting bolts. 9. Remove the steering gear through the
right side of the vehicle.
10. With heat shield equipped steering gears, remove the heat shield. Save for installation.
Installation Procedure
1. If applicable, install the heat shield.
Important: Ensure the stabilizer is swung in the upmost position for gear clearance.
2. Install the steering gear from the right side of the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Gear > Component Information > Service
and Repair > Page 13158
3. Center the gear mounting bushings into the cradle supports.
Notice: Refer to Fastener Notice.
4. Hand start both steering gear to cradle mounting bolts.
Tighten the bolts to 110 N.m (81 lb ft).
5. Connect the intermediate shaft to the steering gear and install a new pinch bolt.
Tighten the intermediate pinch bolt to 34 N.m (25 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Gear > Component Information > Service
and Repair > Page 13159
6. Connect the stabilizer links to the stabilizer bar.
Important: Hold the ball stud to prevent turning during installation of the nut.
7. Connect the tie rod to the knuckle and install a new nut.
Tighten the nut to 25 N.m (18 lb ft) plus 90 degrees.
8. Install the front tires and wheels.. 9. Check the front wheel alignment and align as necessary.
Refer to Measuring Wheel Alignment.
10. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Mounted Controls Assembly > Component
Information > Diagrams
Steering Mounted Controls Assembly: Diagrams
Cruise Control Connector End Views
Steering Wheel Control Switch - Left (Chevrolet w/ K34 w/o UK3)
Steering Wheel Controls - Right (UK3)
Steering Wheel Control Switch - Right (Chevrolet w/ K34 w/o UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Mounted Controls Assembly > Component
Information > Diagrams > Page 13163
Steering Wheel Control Switch - Left (Chevrolet w/ K34 and UK3)
Steering Wheel Control Switch - Right (Chevrolet w/ K34 and UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Mounted Controls Assembly > Component
Information > Diagrams > Page 13164
Steering Wheel Controls - Left
Steering Wheel Control Switch - Left (Pontiac w/ K34/UK3)
Steering Wheel Controls - Left
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Mounted Controls Assembly > Component
Information > Diagrams > Page 13165
Steering Wheel Control Switch - Right (Pontiac w/ K34/UK3)
Steering Wheel Controls - Right (UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Mounted Controls Assembly > Component
Information > Diagrams > Page 13166
Steering Mounted Controls Assembly: Service and Repair
Steering Wheel Control Switch Assembly Replacement (Equinox)
Removal Procedure
1. Use a small flat-bladed tool to release the switch assembly from the steering wheel. 2.
Disconnect the cruise switch electrical harness connector from the switch.
Installation Procedure
1. Connect the switch electrical harness connector to the switch. Push in the connector until a click
is heard and pull back to confirm a positive
engagement.
2. Insert the cruise switch into the steering wheel and gently apply pressure to fasten the switch in
the opening.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Shaft > Component Information > Service
and Repair
Steering Shaft: Service and Repair
Intermediate Steering Shaft Replacement
Removal Procedure
Notice: Secure the steering wheel utilizing a strap to prevent rotation. Locking of the steering
column will prevent damage and a possible malfunction of the SIR system. The steering wheel
must be secured in position before disconnecting the following components:
* The steering column
* The intermediate shaft
* The steering gear
After disconnecting these components, do not move the front tires and wheels. Failure to follow
these procedures may cause improper alignment of some components during installation and
result in possible damage to the SIR coil.
With the steering wheel in the straight forward position, remove the ignition key.
2. Remove the intermediate steering shaft to steering gear pinch bolt. Discard the bolt. 3.
Disengage the intermediate shaft seal from the body panel. 4. Collapse the intermediate steering
shaft, while disconnecting the intermediate steering shaft from the steering gear. 5. Place scribe
makes on the intermediate shaft to the steering column connection prior to removal.
6. Remove the intermediate shaft pinch bolt at the steering column. Discard the pinch bolt. 7.
Disconnect the intermediate steering shaft from the steering column.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Shaft > Component Information > Service
and Repair > Page 13170
8. Remove the intermediate steering shaft assembly from inside the vehicle.
Installation Procedure
Important: Failure to transfer the pre-scribed marks may result in an off-center steering wheel.
1. If installing a new intermediate shaft, transfer the pre-scrubbed alignment marks on to the new
part.
2. Install the intermediate steering shaft assembly from inside the vehicle.
3. Align and connect the intermediate steering shaft to the steering gear.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Shaft > Component Information > Service
and Repair > Page 13171
Notice: Refer to Fastener Notice.
4. Install a new lower intermediate shaft pinch bolt.
Tighten the bolt to 34 N.m (25 lb ft).
5. Align the pre-scribed mark on the intermediate steering shaft to the pre-scribed mark on the
steering column.
6. Connect the intermediate steering shaft to the steering column. 7. If the intermediate shaft was
removed without the use of scribed marks, perform the following:
1. Place the road wheels in the straight ahead position. 2. Align the steering column shaft notch in
the 12 o'clock position and connect the intermediate shaft to the steering column. 3. Install a new
upper intermediate shaft pinch bolt.
Tighten the bolt to 34 N.m (25 lb ft).
8. Seat the intermediate shaft seal into the body panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Wheel > Component Information >
Description and Operation
Steering Wheel: Description and Operation
Steering Wheel and Column Description and Operation
The steering wheel and column has 4 primary functions:
* Vehicle steering
* Vehicle security
* Driver convenience
* Driver safety
Vehicle Steering
The steering wheel is the first link between the driver and the vehicle. The steering wheel is
fastened to a steering shaft within the column. At the lower end of the column, the intermediate
shaft connects the column to the steering gear.
Vehicle Security-Some Vehicle Models
Theft deterrent components are mounted and designed into the steering column. The following
components allow the column to be locked in order to minimize theft:
* The ignition switch
* The steering column lock
* The ignition cylinder
Driver Convenience
The steering wheel and column may also have driver controls attached for convenience and
comfort. The following controls may be mounted on or near the steering wheel or column.
* The turn signal switch
* The hazard switch
* The headlamp dimmer switch
* The wiper/washer switch
* The horn pad/cruise control switch
* The tilt or tilt/telescoping functions
Driver Safety
The energy-absorbing steering column compresses in the event of a front-end collision, which
reduces the chance of injury to the driver. The mounting capsules break away from the mounting
bracket in the event of an accident.
Ignition Lock Cylinder Control Actuator
If the vehicle is equipped with a floor mounted console gear shifter, it has a ignition lock cylinder
control actuator system in the steering column. The ignition lock cylinder control actuator's purpose
is to prevent the ignition key from being turned to the OFF position when the transmission is in gear
and the vehicle may still be moving. The column ignition lock system consists of a ignition lock
cylinder control actuator, and a Park position switch that is located in the automatic transmission
(A/T) shift lock control switch. The ignition lock cylinder control actuator contains a pin that is spring
loaded out to mechanically prevent the ignition key cylinder from being turned to the Lock position
when vehicle transmission is not in the Park position. If vehicle power is lost, and/or the
transmission is not in the Park position the operator will not be able to turn the ignition key to the
Lock position and will not be able to remove the ignition key from the column.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Wheel > Component Information >
Description and Operation > Page 13175
Steering Wheel: Service and Repair
Steering Wheel Replacement
Tools Required
* J 42578Steering Wheel Puller Legs
* J 1859-A Steering Wheel Puller
Removal Procedure
1. Disable the SIR system. 2. Remove the inflatable restraint steering wheel module.
3. If equipped with cruise control, disconnect the cruise control switch connector from the steering
column. 4. Remove the steering wheel nut. 5. Remove the steering wheel. It may be necessary to
use the J 42578 and J 1859-A or equivalent to remove the steering wheel.
Installation Procedure
1. Align the steering wheel to the steering column and install the steering wheel.
Notice: Refer to Fastener Notice.
2. Install the steering wheel nut.
Tighten the steering wheel nut to 41 N.m (30 lb ft).
3. If equipped with cruise control, connect the cruise control switch connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Steering Wheel > Component Information >
Description and Operation > Page 13176
4. Install the inflatable restraint steering wheel module. 5. Enable the SIR system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Tie Rod > Tie Rod Boot > Component Information >
Service and Repair
Tie Rod Boot: Service and Repair
Rack and Pinion Boot Replacement - On Vehicle
Tools Required
J 22610 Keystone Clamp Pliers
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the tire assembly.
3. Remove the outer tie rod. 4. Remove the jam nut.
5. Remove the spring from the boot, outer end. 6. Cut and remove the crimp clamp, inner end.
Discard the clamp. 7. Unseat the boot from the steering gear and remove.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Tie Rod > Tie Rod Boot > Component Information >
Service and Repair > Page 13181
8. Clean the inner tie rod and boot contact area of grease and debris.
Installation Procedure
Important: The inner tie rod must be free of debris and moisture. The boot sealing areas must be
clean and dry.
1. Apply approximately 3/4 of the supplied grease packet into the small end of the boot cavity.
Apply the remainder of the grease on the shaft where
the small end of the boot meats the shaft.
Important: Ensure the large end of the boot is firmly seated in the gear housing groove.
2. Install the boot with the large clamp loosely attached, not crimped.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Tie Rod > Tie Rod Boot > Component Information >
Service and Repair > Page 13182
3. Using the J 22610, crimp the large clamp.
Important: Ensure the small end of the boot is firmly seated in the inner tie rod end groove.
4. Install the spring clamp to the small end of the boot.
5. Install the jam nut approximately 174 mm (6.85 in) from the boot clamp.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Steering > Tie Rod > Tie Rod Boot > Component Information >
Service and Repair > Page 13183
6. Install the outer tie rod. 7. Install the tire assembly. 8. Check the front wheel alignment and align
as necessary. Refer to Measuring Wheel Alignment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles)
Axle Beam: Service and Repair Support Replacement (AWD Vehicles)
Support Replacement (AWD Vehicles)
Tools Required
J 37043 Park Brake Cable Release Tool
Removal Procedure
1. Place the park brake lever in the release position. 2. Raise and support the vehicle. Refer to
Vehicle Lifting. 3. Remove the tires and wheels. 4. Remove the exhaust muffler.
5. Remove the rear park brake cable routing bolts from the trailing arms.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13189
6. Disconnect the rear park brake cables from the park brake actuators. 7. Using the J 37043,
remove the park brake cables from the mounting brackets 8. Position the rear park brake cables
aside. 9. Disconnect the rear wheel speed sensor electrical connectors and routing clips from the
rear support and upper control arms.
Position the wiring harness aside.
10. Remove the rear brake hose bracket nut and bolt.
Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated
from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper
in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause
damage to the brake hose and in turn may cause a brake fluid leak.
11. Remove the brake calipers and brackets as assemblies and support them with heavy
mechanics wire or equivalent.
12. While holding the stabilizer link with a wrench, remove the stabilizer link-to-lower control arm
nut. 13. Remove the trailing arms. 14. Remove the adjustment links. 15. Remove the rear wheel
drive shafts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13190
16. Remove the rear differential. 17. Position a transmission jack under the rear support and firmly
secure the support to the jack with straps.
18. Remove the 4 rear support to body bolts. 19. Remove the rear support assembly from the
vehicle. 20. With the aid of an assistant, remove the rear support from the transmission jack and
place it on the floor.
Installation Procedure
Notice: Refer to Fastener Notice.
1. If a new rear support is being installed, a transfer of components is necessary.
* Upper Control Arms
Tighten the upper control arm to rear support nut and bolt to 160 N.m (118 lb ft).
* Lower Control Arms
Tighten the lower control arm to rear support nut and bolt to 110 N.m (81 lb ft).
* Stabilizer bar and insulators Tighten the stabilizer shaft insulator clamp bolts to 70 N.m (52 lb ft).
- Tighten the stabilizer link to stabilizer shaft nut to 57 N.m (42 lb ft).
* Knuckles - Loosely install the upper and lower control arm to knuckle nuts/bolts. These fasteners
will be tightened later in this procedure after the wheel driveshafts are installed.
2. With the aid of an assistant, position the rear support onto the transmission jack and firmly
secure the support to the jack with straps. 3. Position the rear support assembly to the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13191
4. Install the 4 rear support to body bolts.
Tighten the rear support to body bolts to 170 N.m (125 lb ft).
5. Install the rear differential. 6. Install the rear wheel drive shafts. 7. Install the adjustment links. 8.
Install the trailing arms.
9. While holding the stabilizer link, install the stabilizer link-to-lower control arm nut.
Tighten the stabilizer link to lower control arm nut to 15 N.m (11 lb ft).
Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated
from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper
in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause
damage to the brake hose and in turn may cause a brake fluid leak.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13192
10. Remove the supporting wire and position the brake caliper and bracket assemblies back onto
the knuckles. 11. Install the rear brake hose bracket nut and bolt.
Tighten the rear brake hose bolt and nut to 12 N.m (106 lb in).
12. Position the wiring harness back to the original location, connect the routing clips to the rear
support and upper control arms.
Connect the rear wheel speed sensor electrical connectors.
13. Connect the rear park brake cables through the mounting brackets and onto the park brake
actuators.
14. Install the rear park brake cable routing bolts to the trailing arms.
Tighten the rear park brake cable routing bolt to 12 N.m (106 lb in).
15. Install the exhaust muffler. 16. Install the tires and wheels.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13193
17. Check the rear alignment. Refer to Measuring Wheel Alignment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13194
Axle Beam: Service and Repair Support Replacement (FWD Vehicles)
Support Replacement (FWD Vehicles)
Tools Required
J 37043 Park Brake Cable Release Tool
Removal Procedure
1. Place the park brake lever in the release position. 2. Raise and support the vehicle. Refer to
Vehicle Lifting. 3. Remove the tires and wheels. 4. Remove the exhaust muffler.
5. Remove the rear park brake cable routing bolts from the trailing arms.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13195
6. Disconnect the rear park brake cables from the park brake actuators. 7. Using the J 37043,
remove the park brake cables from the mounting brackets. 8. Position the rear park brake cables
aside. 9. Disconnect the rear wheel speed sensor electrical connectors and the routing clips from
the rear support and upper control arms.
Position the wiring harness aside.
10. Remove the rear brake hose bracket nut and bolt.
Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated
from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper
in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause
damage to the brake hose and in turn may cause a brake fluid leak.
11. Remove the brake calipers and brackets as assemblies and support them with heavy
mechanics wire or equivalent.
12. While holding the stabilizer link with a wrench, remove the stabilizer link-to-lower control arm
nut. 13. Remove the trailing arms. 14. Remove the adjustment links. 15. Remove the coil springs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13196
16. Position a transmission jack under the rear support and firmly secure the support to the jack
with straps.
17. Remove the 4 rear support to body bolts. 18. Remove the rear support assembly from the
vehicle. 19. With the aid of an assistant, remove the rear support from the transmission jack and
place it on the floor.
Installation Procedure
Notice: Refer to Fastener Notice.
1. If a new rear support is being installed, a transfer of components is necessary.
* Upper Control Arms
Tighten the upper control arm to rear support nut and bolt to 160 N.m (118 lb ft).
* Lower Control Arms
Tighten the lower control arm to rear support nut and bolt to 110 N.m (81 lb ft).
* Stabilizer bar and insulators Tighten the stabilizer shaft insulator clamp bolts to 70 N.m (52 lb ft).
- Tighten the stabilizer link to stabilizer shaft nut to 57 N.m (42 lb ft).
* Knuckles - The lower control arm to knuckle bolt/nut will be installed and tightened when the coil
spring is installed later in this procedure.
Tighten upper control arm to knuckle bolt and nut to 160 N.m (118 lb ft).
2. With the aid of an assistant, position the rear support onto the transmission jack and firmly
secure the support to the jack with straps. 3. Position the rear support assembly to the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13197
4. Install the 4 rear support to body bolts.
Tighten the rear support to body bolts to 170 N.m (125 lb ft).
5. Install the coil springs. 6. Install the adjustment links. 7. Install the trailing arms.
8. While holding the stabilizer link, install the stabilizer link-to-lower control arm nut.
Tighten the stabilizer link to lower control arm nut to 15 N.m (11 lb ft).
Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated
from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper
in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause
damage to the brake hose and in turn may cause a brake fluid leak.
9. Remove the supporting wire and position the brake caliper and bracket assemblies back onto
the knuckles..
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13198
10. Install the rear brake hose bracket nut and bolt.
Tighten the rear brake hose bolt and nut to 12 N.m (106 lb in).
11. Position the wiring harness back to the original location, connect the routing clips to the rear
support and upper control arms. Connect the rear
wheel speed sensor electrical connectors.
12. Connect the rear park brake cables through the mounting brackets and onto the park brake
actuators.
13. Install the rear park brake cable routing bolts to the trailing arms.
Tighten the rear park brake cable routing bolt to 12 N.m (106 lb in).
14. Install the exhaust muffler. 15. Install the tires and wheels. 16. Check the rear alignment. Refer
to Measuring Wheel Alignment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13199
Axle Beam: Service and Repair Support Rear Drive Module Mounting Bushing Replacement
Support Rear Drive Module Mounting Bushing Replacement
Tools Required
J 44866 Support Bushing Remover and Installer
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the production muffler and
resonator as an assembly. 3. Remove the rear stabilizer shaft.
4. Remove the rear drive module bracket to support bolt and nut. Discard the nut. 5. Remove the
rear drive module to rear drive module bolts and nuts. Discard the nuts. 6. Remove the rear drive
module bracket from the vehicle.
7. Install the J 44866 to the support assembly in the following procedure.
1. Position the large part of the tool over the bushing flange and against the frame. 2. Install the
bolt and washer. 3. Install the small part of the tool against the bushing. 4. Lube the threads of the
J 44866 with extreme pressure (EP) lube.
Important: Ensure the small end of the tool is aligned with the bushing.
5. Install the bearing, washer and nut. 6. Tighten the J 44866 in order to remove the bushing from
the support assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Axle Beam > Component Information > Service
and Repair > Support Replacement (AWD Vehicles) > Page 13200
Installation Procedure
1. Install the J 44866 to the support assembly in the following procedure.
1. Place the bolt washer and large portion of the J 44866 against the frame. 2. Position the bushing
against the support assembly. Align the bushing with the slots in the rubber portion straight up and
down. 3. Position the small part of the J 44866 against the bushing flange area. 4. Lube the threads
of the J 44866 with EP lube. 5. Install the bearing, washer and nut.
Important: The bushing must be fully seated.
6. Tighten the J 44866 in order to install the bushing into the support assembly.
Notice: Refer to Fastener Notice.
2. Install the rear drive module bracket to the rear drive module, using new nuts.
Tighten the drive module bracket to drive module bolts and nuts to 125 N.m (92 lb ft).
3. Install the rear bracket to support bolt, using a new nut.
Tighten the drive module bracket to support assembly bolt and nut to 125 N.m (92 lb ft).
4. Install the rear stabilizer shaft. 5. Install the production muffler and resonator as an assembly. 6.
Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Ball Joint > Component Information >
Specifications
Ball Joint: Specifications
Ball joint wear limit ...............................................................................................................................
.................................................. 3.18 mm (0.125 in)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Ball Joint > Component Information >
Specifications > Page 13204
Ball Joint: Testing and Inspection
Ball Joint Inspection
Step 1 - Step 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Ball Joint > Component Information >
Specifications > Page 13205
Ball Joint: Service and Repair
Lower Ball Joint Replacement
Removal Procedure
1. Remove the lower control arm. 2. Place the control arm in a vise or suitable holding device. 3.
Remove the ball joint rivets using the following procedure.
1. Drill through the rivets using a 8 mm (5/16 in) drill bit. 2. Enlarge the hole using a 12 mm (31/64
in) drill bit. 3. Remove any remaining burs from the control arm.
4. Remove the ball joint from the control arm. Note the position of the ball joint for reassembly.
Installation Procedure
Important: The control arm must be clean and free of debris.
1. Install the ball joint to the control arm as previously noted.
Notice: Refer to Fastener Notice in Service Precautions.
Important:
* Only use hardware provided with the new ball joint.
* The bolts must be installed with the bolt head on top of the ball joint.
Install the ball joint to control arm bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Ball Joint > Component Information >
Specifications > Page 13206
Tighten the bolts and nuts to 68 N.m (50 lb ft).
3. Install the lower control arm.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Control Arm > Control Arm Bushing >
Component Information > Technical Service Bulletins > Customer Interest for Control Arm Bushing: > 07-03-08-004 > Mar >
07 > Suspension - Front End Rattle Noise on Bumps
Control Arm Bushing: Customer Interest Suspension - Front End Rattle Noise on Bumps
Bulletin No.: 07-03-08-004
Date: March 29, 2007
TECHNICAL
Subject: Rattle Noise in Front of Vehicle While Driving Over Rough Road Surfaces (Replace Both
Front Lower Control Arm Rear Bushings)
Models: 2005-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on a rattle noise coming from the front of the vehicle while driving
at slow speeds (approximately 8-17 km/h (5-10 mph) over rough road surfaces.
Correction
Replace the right and left front lower control arm rear bushings. Refer to the Front Lower Control
Arm Rear Bushing Replacement procedure in SI.
The revised bushing will not only address the rattle noise but has been designed for enhanced
comfort and road isolation.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Control Arm > Control Arm Bushing >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Control Arm Bushing: >
07-03-08-004 > Mar > 07 > Suspension - Front End Rattle Noise on Bumps
Control Arm Bushing: All Technical Service Bulletins Suspension - Front End Rattle Noise on
Bumps
Bulletin No.: 07-03-08-004
Date: March 29, 2007
TECHNICAL
Subject: Rattle Noise in Front of Vehicle While Driving Over Rough Road Surfaces (Replace Both
Front Lower Control Arm Rear Bushings)
Models: 2005-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on a rattle noise coming from the front of the vehicle while driving
at slow speeds (approximately 8-17 km/h (5-10 mph) over rough road surfaces.
Correction
Replace the right and left front lower control arm rear bushings. Refer to the Front Lower Control
Arm Rear Bushing Replacement procedure in SI.
The revised bushing will not only address the rattle noise but has been designed for enhanced
comfort and road isolation.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Control Arm > Control Arm Bushing >
Component Information > Service and Repair > Front Suspension
Control Arm Bushing: Service and Repair Front Suspension
Front Lower Control Arm Bushing Replacement (Rear Bushing)
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the front tire and wheel
assembly. 3. Remove the lower control arm.
4. Remove the rear bushing nut. 5. Remove the rear bushing.
Installation Procedure
Notice: Refer to Fastener Notice.
1. Install the rear bushing to the lower control arm.
Tighten the nut to 150 N.m (11 lb ft).
2. Install the lower control arm. 3. Install the front tire and wheel assembly. 4. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Control Arm > Control Arm Bushing >
Component Information > Service and Repair > Front Suspension > Page 13223
Control Arm Bushing: Service and Repair Rear Suspension
Rear Axle Lower Control Arm Bushing Replacement
Tools Required
J 45097 Rear Control Arm Bushing Remover
Removal Procedure
1. Remove the lower control arm.
2. Using the J 45097, remove the bushing in the direction of the arrow.
3. Install the push out socket against the bushing from the flanged side of the control arm. 4. Install
the through bolt with the washer and bearing against the push out socket. 5. Install a backing
socket against the control arm, opposite of the flange. 6. Install the stabilizer between the control
arm ears. 7. Install flat washer and nut.
Important: Apply high pressure lube to the threads of the tool.
8. Tighten the nut until the bushing is removed.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Control Arm > Control Arm Bushing >
Component Information > Service and Repair > Front Suspension > Page 13224
Important: Apply high pressure lube to the threads of the tool.
1. Install a new bushing from the opposite direction. 2. Using the J 45097, reverse the tool layout
from the removal procedure. 3. Tighten the nut until the bushing is fully installed. 4. Install the lower
control arm.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Front Steering Knuckle > Component Information
> Service and Repair > Rear Suspension
Front Steering Knuckle: Service and Repair Rear Suspension
Knuckle Replacement
Removal Procedure
Tools Required
J 37043 Park Brake Cable Release Tool
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the tire and wheel.
3. Disconnect the rear park brake cable from the park brake actuator. 4. Using the J 37043, remove
the park brake cable from the mounting bracket
Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated
from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper
in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause
damage to the brake hose and in turn may cause a brake fluid leak.
5. Remove the brake caliper and bracket as an assembly and support it with heavy mechanics wire
or equivalent. 6. Remove the wheel bearing/hub assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Front Steering Knuckle > Component Information
> Service and Repair > Rear Suspension > Page 13229
7. Remove the upper control arm to knuckle bolt and nut.
8. Remove the lower control arm to knuckle bolt and nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Front Steering Knuckle > Component Information
> Service and Repair > Rear Suspension > Page 13230
9. Remove the toe link to knuckle bolt and nut.
10. Remove the 3 trailing arm to knuckle bolts. 11. Remove the knuckle from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Front Steering Knuckle > Component Information
> Service and Repair > Rear Suspension > Page 13231
1. Install the knuckle to the lower control arm. Loosely install the bolt and nut.
2. Install the knuckle to the upper control arm. Loosely install the bolt and nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Front Steering Knuckle > Component Information
> Service and Repair > Rear Suspension > Page 13232
3. Install the knuckle to the toe link. Loosely install the bolt and nut.
4. Install the 3 trailing arm to knuckle bolts. Loosely install the bolt and nut.
Notice: Refer to Fastener Notice.
5. Tighten the bolts and nuts in the following sequence:
* Tighten the knuckle to lower control arm bolt and nut to 160 N.m (118 lb ft).
* Tighten the knuckle to upper control arm bolt and nut to 160 N.m (118 lb ft).
* Tighten the knuckle to toe link bolt and nut to 160 N.m (118 lb ft).
* Tighten the 3 trailing arm to knuckle bolts to 110 N.m (81 lb ft).
6. Install the wheel bearing/hub assembly.
Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated
from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper
in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause
damage to the brake hose and in turn may cause a brake fluid leak.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Front Steering Knuckle > Component Information
> Service and Repair > Rear Suspension > Page 13233
7. Remove the supporting wire and position the brake caliper and bracket assemblies back onto
the knuckles.
8. Connect the rear park brake cable through the mounting bracket and onto the park brake
actuator. 9. Install the tire and wheel.
10. Lower the vehicle. 11. Perform a vehicle wheel alignment. Refer to Measuring Wheel
Alignment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Front Steering Knuckle > Component Information
> Service and Repair > Rear Suspension > Page 13234
Front Steering Knuckle: Service and Repair Front Suspension
Steering Knuckle Replacement
Tools Required
J-42188-B Ball Joint Separator
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the tire and wheel. 3. Remove
the wheel bearing/hub assembly.
Important: Do not allow the stabilizer link ball stud to rotate while removing the link nut.
4. Remove the nut and separate the stabilizer link from the strut assembly. 5. Loosen the steering
knuckle to strut bolts and nuts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Front Steering Knuckle > Component Information
> Service and Repair > Rear Suspension > Page 13235
6. Remove and discard the lower ball joint cotter pin. 7. Loosen the ball stud nut, until level with the
top of the ball stud. 8. Using the J-42188-B, separate the lower ball joint from the steering knuckle.
9. Remove the lower control arm and nut.
Important: Do not free the ball stud from the steering knuckle by use of a pickle fork or a wedge
type tool. Damage to the seal or bushing may result. Tip
10. Remove the tie rod.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Front Steering Knuckle > Component Information
> Service and Repair > Rear Suspension > Page 13236
11. Remove the steering knuckle to strut bolts and nuts. Discard the bolts and nuts. 12. Remove
the steering knuckle from the vehicle.
Installation Procedure
1. Position the steering knuckle to strut assembly.
2. Loosely install the strut to steering knuckle bolts and nuts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Front Steering Knuckle > Component Information
> Service and Repair > Rear Suspension > Page 13237
3. Position the lower ball joint stud into the steering knuckle.
Notice: Refer to Fastener Notice.
4. Using the SA9140E, install the ball stud nut.
Tighten the nut to 40 N.m (30 lb in).
5. Tighten the strut to steering knuckle bolts and nuts.
Tighten the bolts and nuts to 180 N.m (133 lb ft).
Important: Do not loosen the castle nut for cotter pin installation.
6. Tighten the castle nut enough to allow for cotter pin installation.
Important: The cotter pin must not contact the wheel speed sensor or drive axle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Front Steering Knuckle > Component Information
> Service and Repair > Rear Suspension > Page 13238
7. Install a new cotter pin. 8. Install the tie rod.
Important: Do not allow the stabilizer link ball stud to rotate while installing the link nut.
9. Position the stabilizer link to the strut assembly and install the nut.
Tighten the nut to 65 N.m (48 lb ft).
10. Install the wheel bearing/hub assembly. 11. Install the tire and wheel. 12. Lower the vehicle. 13.
Perform a wheel alignment. Refer to Measuring Wheel Alignment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Rear Knuckle Alignment Link > Component
Information > Service and Repair
Rear Knuckle Alignment Link: Service and Repair
Adjustment Link Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Stabilizer Bar, Sway Control > Stabilizer Bushing
> Component Information > Service and Repair > Front Suspension
Stabilizer Bushing: Service and Repair Front Suspension
Stabilizer Shaft Insulator Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Stabilizer Bar, Sway Control > Stabilizer Bushing
> Component Information > Service and Repair > Front Suspension > Page 13247
Stabilizer Bushing: Service and Repair Rear Suspension
Stabilizer Shaft Insulator Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Stabilizer Bar, Sway Control > Stabilizer Link >
Component Information > Service and Repair > Front Suspension
Stabilizer Link: Service and Repair Front Suspension
Stabilizer Shaft Link Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Stabilizer Bar, Sway Control > Stabilizer Link >
Component Information > Service and Repair > Front Suspension > Page 13252
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Stabilizer Bar, Sway Control > Stabilizer Link >
Component Information > Service and Repair > Front Suspension > Page 13253
Stabilizer Link: Service and Repair Rear Suspension
Stabilizer Shaft Link Replacement
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the rear tire and wheel
assembly.
3. Loosen the stabilizer bar clamp bolts.
Important: Hold the ball shaft secure with a TORX(R) bit, when removing the nut.
4. Remove the stabilizer link to stabilizer bar nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Stabilizer Bar, Sway Control > Stabilizer Link >
Component Information > Service and Repair > Front Suspension > Page 13254
Important: When disconnecting the stabilizer link, hold the link with a wrench to prevent turning.
5. Remove the stabilizer link to lower control arm nut. 6. Remove the stabilizer link from the vehicle.
Installation Procedure
1. Position the stabilizer link through the lower control arm.
Notice: Refer to Fastener Notice.
Important: When connecting the stabilizer link, hold the link with a wrench to prevent turning.
2. Install the stabilizer link to lower control arm nut.
Tighten the nut to 15 N.m (11 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Stabilizer Bar, Sway Control > Stabilizer Link >
Component Information > Service and Repair > Front Suspension > Page 13255
Important: Hold the ball shaft secure with a TORX(R) bit, when installing the nut.
3. Install the stabilizer link to stabilizer bar nut.
Tighten the nut to 57 N.m (42 lb ft).
4. Tighten the loose stabilizer bar clamp bolts.
Tighten the bolts to 70 N.m (52 lb ft).
5. Install the rear tire and wheel assembly. 6. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > Customer Interest: > 08-08-57-001A > Oct > 08 > Body - General
Water Leak Diagnostic Guide
Front Strut / Shock Tower: Customer Interest Body - General Water Leak Diagnostic Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 2
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > Customer Interest: > 08-08-57-001A > Oct > 08 > Body - General
Water Leak Diagnostic Guide > Page 13265
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > Customer Interest: > 08-08-57-001A > Oct > 08 > Body - General
Water Leak Diagnostic Guide > Page 13266
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > Customer Interest: > 08-08-57-001A > Oct > 08 > Body - General
Water Leak Diagnostic Guide > Page 13267
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > Customer Interest: > 08-08-57-001A > Oct > 08 > Body - General
Water Leak Diagnostic Guide > Page 13268
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > Customer Interest: > 08-08-57-001A > Oct > 08 > Body - General
Water Leak Diagnostic Guide > Page 13269
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide
Front Strut / Shock Tower: All Technical Service Bulletins Body - General Water Leak Diagnostic
Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 2
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 13275
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 13276
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 13277
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 13278
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 13279
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: >
09-02-35-005C > Feb > 11 > Ignition - Key Difficult To Remove, Binds Or Sticks
Ignition Switch Lock Cylinder: All Technical Service Bulletins Ignition - Key Difficult To Remove,
Binds Or Sticks
TECHNICAL
Bulletin No.: 09-02-35-005C
Date: February 07, 2011
Subject: Ignition Key Difficult to Remove, Ignition Key Binds or Sticks in Cylinder (Replace Ignition
Cylinder)
Models:
2005-2009 Chevrolet Cobalt (Built Prior to April 14, 2009) 2006-2010 Chevrolet HHR (Built Prior to
June 1, 2010) 2007-2009 Chevrolet Equinox (Built Prior to July 2008) 2005-2006 Pontiac Pursuit
(Canada Only) 2006-2009 Pontiac Solstice (Built Prior to April 14, 2009) 2007-2009 Pontiac G5
(Built Prior to April 14, 2009), Torrent (Built Prior to July 2008) 2006-2009 Saturn SKY (Built Prior to
April 24, 2009)
Supercede: This bulletin is being revised to remove an Attention statement, update the build date
for HHR and remove the CTS model. Please discard Corporate Bulletin Number 09-02-35-005B
(Section 02 - Steering).
Condition
Some customers may comment that the ignition key is difficult to remove or that the key sticks or
binds in the ignition cylinder.
Correction
A new ignition lock cylinder has been released to correct this concern. Replace the ignition lock
cylinder following the Ignition Lock Cylinder Replacement procedure in SI. For ignition lock cylinder
assembly and coding, use the instructions provided with the new cylinder.
Important To properly seat the new ignition lock cylinder into the housing, the key must be inserted
and turned to the RUN position.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: > Page
13285
Front Strut / Shock Tower: By Symptom
Technical Service Bulletin # 08-08-57-001A Date: 081008
Body - General Water Leak Diagnostic Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: > Page
13286
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: > Page
13287
Water may be entering between the liftgate and the weatherstrip.
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: > Page
13288
Condition 6
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: > Page
13289
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: > Page
13290
Parts Information
Disclaimer
Technical Service Bulletin # 08-08-57-001A Date: 081008
Body - General Water Leak Diagnostic Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: > Page
13291
Condition 2
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: > Page
13292
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: > Page
13293
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: > Page
13294
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Strut / Shock Tower > Front Strut / Shock Tower
> System Information > Technical Service Bulletins > All Other Service Bulletins for Front Strut / Shock Tower: > Page
13295
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Subframe > Front Subframe > System
Information > Service and Repair
Front Subframe: Service and Repair
Frame Replacement (LNJ)
Tools Required
* J 43828 Ball Joint Remover
* SA9140E Torque Angle Gage
Removal Procedure
1. Secure the radiator to the upper radiator support. 2. Raise and support the vehicle. Refer to
Vehicle Lifting. 3. Remove the front wheels. 4. Remove the side splash shield-to-frame fasteners.
5. Remove the front air dam-to-frame fasteners.
6. Remove the rear transaxle mount-to-frame bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Subframe > Front Subframe > System
Information > Service and Repair > Page 13300
7. Remove the front transaxle mount through bolt.
8. Remove the steering gear-to-frame bolts. 9. Using mechanics wire, secure the steering gear to
the exhaust.
10. Remove the stabilizer shaft clamp-to-frame bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Subframe > Front Subframe > System
Information > Service and Repair > Page 13301
11. Remove the lower ball joint cotter pins. Discard the cotter pins.
12. Loosen the lower ball joint castle nut until the nut is level with the top of the ball stud.
Notice: Do not free the ball stud by using a pickle fork or a wedge-type tool. Damage to the seal or
bushing may result.
13. Using the J 43828, separate the lower control arm from the steering knuckle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Subframe > Front Subframe > System
Information > Service and Repair > Page 13302
14. Remove the frame-to-body bolts. Discard the bolts. 15. Carefully lower the frame from the
vehicle. 16. Remove the lower control arms.
Installation Procedure
1. Install the lower control arms. 2. Raise the frame to the body.
Important: Do not tighten the fasteners at this time.
3. Loosely install new frame-to-body bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Subframe > Front Subframe > System
Information > Service and Repair > Page 13303
4. Connect the ball joint stud to the steering knuckle.
Notice: Refer to Fastener Notice.
5. Using the SA9140E, install the ball stud castle nut.
Tighten the nut to 10 N.m (89 lb in) + 180 degrees.
Important: *
Do not loosen the castle nut in order to align the cotter pin slots.
* Ensure the cutter pin ends do not contact the wheel speed sensor harness.
Continue to tighten the castle nut to align the slots with the opening in the ball stud and install the
ball stud cotter pin.
6. Remove the mechanics wire and install the steering gear to the frame.
Tighten the bolts to 110 N.m (81 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Subframe > Front Subframe > System
Information > Service and Repair > Page 13304
7. Install the front transaxle mount through bolt.
Tighten the bolt to 110 N.m (81 lb ft).
8. Install the rear transaxle mount-to-frame bolts.
Tighten the bolts to 50 N.m (37 lb ft).
9. Install the stabilizer shaft clamp.
Tighten the bolts to 50 N.m (37 lb ft).
10. Tighten the frame-to-body bolts.
Tighten the bolts to 155 N.m (114 lb ft).
11. Install the front air dam fasteners. 12. Install the side splash shield-to-frame fasteners. 13.
Install the front wheels. 14. Lower the vehicle. 15. Unsecure the radiator from the upper radiator
support. 16. Align the front suspension. Refer to Front Toe Adjustment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Spring ( Coil / Leaf ) > Component
Information > Service and Repair > Front Suspension Coil Spring
Suspension Spring ( Coil / Leaf ): Service and Repair Front Suspension Coil Spring
Strut, Strut Component and/or Spring Replacement
Tools Required
* J 42991 Strut Rod Nut Socket
* J 45400 Strut Spring Compressor
Removal Procedure
1. Install the strut assembly in the J 45400 using the following procedure.
1. Adjust the lower legs of the J 45400 to the lowest possible coil of the spring. 2. Adjust the upper
legs of the J 45400 to the highest possible coil of the spring. 3. Inspect the strut assembly to insure
hooks on the strut compress legs are properly installed on the spring coils. 4. Verify the strut
assembly is parallel with the J 45400.
2. Compress the spring enough to unload the upper strut mount.
Notice: Do not allow the absorber rod to rotate during disassembly/reassembly. Use hand tools to
keep the absorber rod from rotating. If air tools are used, and the rod is allowed to rotate, damage
to the absorber may occur.
3. Use the J 42991 or equivalent hand tools to remove the strut shaft nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Spring ( Coil / Leaf ) > Component
Information > Service and Repair > Front Suspension Coil Spring > Page 13309
Important: Leave the spring in the spring compressor.
4. Lower the strut from the spring assembly.
Notice: Do not handle the top mount assembly by the plastic portion. Handle the top mount
assembly by the metal portion when removing/installing the top mount from/to the strut assembly.
Holding the top mount assembly by the plastic portion may loosen the snap fit of the bearing
components and cause the bearing to fall apart.
5. Remove the upper mount assembly, inspect for damage and deterioration. Replace as
necessary. 6. Remove the strut dust shield and inspect for damage and deterioration. Replace as
necessary. 7. Remove the hollow bumper from the strut shaft and inspect for damage and
deterioration. Replace as necessary. 8. Inspect the spring for damage. Replace as necessary.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Spring ( Coil / Leaf ) > Component
Information > Service and Repair > Front Suspension Coil Spring > Page 13310
1. Extend the strut to its limit of travel. 2. Install the hollow bumper and dust boot to the strut shaft.
Important: The tag identifying the spring will be closer to the bottom of the spring. The end of the
cold sits up against the tab on the spring seat.
3. With the spring in the compressor, install the strut into the spring.
Important: The anti-rotation tab on the spring seat must face 180 degrees from the direction that
the knuckle bracket points.
4. Assemble the upper spring seat onto the strut shaft and align the flat with the strut to knuckle
mounting bracket.
Notice: Do not handle the top mount assembly by the plastic portion. Handle the top mount
assembly by the metal portion when removing/installing the top mount from/to the strut assembly.
Holding the top mount assembly by the plastic portion may loosen the snap fit of the bearing
components and cause the bearing to fall apart.
Important: The flat on the metal plate of the top mount assembly must face the same direction of
the anti-rotation tab on the spring seat.
5. Assemble the top mount onto the strut shaft and align the flat 180 degrees from flat on the upper
spring seat.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Spring ( Coil / Leaf ) > Component
Information > Service and Repair > Front Suspension Coil Spring > Page 13311
6. Loosely install the strut shaft nut.
Notice: Do not allow the absorber rod to rotate during disassembly/reassembly. Use hand tools to
keep the absorber rod from rotating. If air tools are used, and the rod is allowed to rotate, damage
to the absorber may occur.
Notice: Refer to Fastener Notice in Service Precautions.
7. Hold the strut shaft and use the J 42991 or equivalent hand tools to tighten the shaft while
verifying that the upper spring seat flats align with the
top mount.
Tighten the strut shaft to 75 N.m (55 lb ft).
8. Release the tension on the J 45400. 9. Remove the strut assembly from the J 45400.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Spring ( Coil / Leaf ) > Component
Information > Service and Repair > Front Suspension Coil Spring > Page 13312
Suspension Spring ( Coil / Leaf ): Service and Repair Rear Suspension Coil Spring
Coil Spring Replacement
Coil Spring Replacement
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the rear tire and wheel
assembly. 3. Remove the stabilizer shaft link. 4. Position a jackstand underneath the lower control
arm. 5. Raise the jackstand slightly to compress the coil spring.
6. Remove the lower shock bolt and nut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Spring ( Coil / Leaf ) > Component
Information > Service and Repair > Front Suspension Coil Spring > Page 13313
7. Loosen the lower control arm to support frame nut and bolt.
8. Remove the lower control arm to knuckle nut and bolt. 9. Slowly lower the control arm in order to
unload the coil spring.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Spring ( Coil / Leaf ) > Component
Information > Service and Repair > Front Suspension Coil Spring > Page 13314
10. Remove the coil spring and insulators.
Installation Procedure
1. Inspect the coil spring upper and lower insulators, if damage exists replace the insulators.
If no damage exists, transfer the existing components. Refer to Coil Spring Insulators
Replacement.
2. Position the spring with the rubber insulators into the vehicle. 3. Raise the jackstand to compress
the spring.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Spring ( Coil / Leaf ) > Component
Information > Service and Repair > Front Suspension Coil Spring > Page 13315
Notice: Refer to Fastener Notice.
4. Position the lower control arm to the knuckle and install the nut and bolt.
Tighten the lower control arm to knuckle bolt and nut to 160 N.m (118 lb ft).
5. Tighten the lower control arm to support nut and bolt.
Tighten the bolt to 110 N.m (81 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Spring ( Coil / Leaf ) > Component
Information > Service and Repair > Front Suspension Coil Spring > Page 13316
6. Install the shock to the lower control arm nut and bolt.
Tighten the lower shock bolt and nut to 110 N.m (81 lb ft).
7. Remove the jackstand from under the vehicle. 8. Install the stabilizer shaft link. 9. Install the rear
tire and wheel assembly.
10. Lower the vehicle. 11. Check the rear alignment. Refer to Measuring Wheel Alignment.
Coil Spring Insulators Replacement
Coil Spring Insulators Replacement
Removal Procedure
1. Remove the coil spring.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Spring ( Coil / Leaf ) > Component
Information > Service and Repair > Front Suspension Coil Spring > Page 13317
2. Remove the upper and lower rubber insulators from the coil spring.
Installation Procedure
Important:
* Spray silicon lubricant on the insulators to aid in installation.
* Make sure that part number identification tape located on the coil spring is oriented outboard of
the vehicle and at the top of the
spring.
* Make sure to fully seat the top and bottom coil spring insulators to the spring.
Install the upper and lower rubber insulators to the coil spring.
1. Install the coil spring.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Technical Service Bulletins > Suspension - Shock Absorber/Strut Leakage Information
Suspension Strut / Shock Absorber: Technical Service Bulletins Suspension - Shock
Absorber/Strut Leakage Information
INFORMATION
Bulletin No.: 05-03-08-002C
Date: October 16, 2009
Subject: Information on Replacement of Shock Absorbers and Struts Due to Fluid Leaks
Models:
2010 and Prior GM Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add the 2010 model year and Inspection Procedures.
Please discard Corporate Bulletin Number 05-03-08-002B (Section 03 - Suspension).
This bulletin is intended to help identify the severity of shock absorber and strut fluid seepage.
Improper diagnosis may lead to components being replaced that are within the manufacturer's
specification. Shock absorbers and strut assemblies are fluid-filled components and will normally
exhibit some seepage. Seepage is defined as oil film or dust accumulation on the exterior of the
shock housing. Shock absorbers and struts are not to be replaced under warranty for seepage.
Use the following information to determine if the condition is normal acceptable seepage or a
defective component.
Important Electronically controlled shock absorbers (MR) may have a tendency to attract dust to
this oil film. Often this film and dust can be wiped off and will not return until similar mileage is
accumulated again.
Inspection Procedure
Note
The shock absorber or strut assembly DOES NOT have to be removed from the vehicle to perform
the following inspection procedure.
Use the following descriptions and graphics to determine the serviceability of the component.
Shock Absorbers
Do Not Replace shock absorbers displaying condition 1 or 2 levels of seepage.
1. Oil or fluid residue only on the bottom or top of the shock absorber and not originating from the
shaft seal (the upper part of the lower shock tube). 2. Light film/residue on approximately 1/3 (a) or
less of the lower shock tube (A) and originating from the shaft seal.
Replace shock absorbers displaying conditions 3 and 4 levels of leaks.
3. Oil drip or trail down the lower shock tube and originating from the shaft seal. 4. An extreme wet
film of oil covering more than 1/3 (b) of the lower shock tube and originating from the shaft seal.
Coil-over Shock Absorber
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Technical Service Bulletins > Suspension - Shock Absorber/Strut Leakage Information > Page 13322
Do Not Replace coil-over shock absorbers displaying condition 1 or 2 levels of seepage.
1. Oil or fluid residue only on the bottom of the lower shock absorber tube or the coil-over shock
absorber components and not originating from the
shaft seal (located at the top of the coil-over shock tube).
2. Light film/residue on the shock absorber tube, but not on the spring seat and originating from the
shaft seal.
Replace coil-over shock absorbers displaying conditions 3 and 4 levels of leaks.
3. Oil drip or trail down the lower shock tube and originating from the shaft seal. 4. An extreme, wet
film of oil covering the shock absorber tube and pooling in the spring seat and originating from the
shaft seal.
Struts
Do Not Replace Struts displaying condition 1 or 2 levels of seepage.
1. Oil or fluid residue only on the bottom of the strut tube or on other strut components and not
originating from the shaft seal. 2. Light film/residue on the strut tube, but not on the spring seat and
originating from the shaft seal.
Replace Struts displaying conditions 3 and 4 levels of leaks.
3. Oil drip or trail down the strut tube and originating from the shaft seal (located at the top of the
strut tube). 4. Extreme wet film of oil covering the strut tube and pooling in the spring seat and
originating from the shaft seal.
Correction
Use the information published in SI for diagnosis and repair.
Use the applicable published labor operation.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Service and Repair > Front Suspension Strut
Suspension Strut / Shock Absorber: Service and Repair Front Suspension Strut
Suspension Strut Disposal
Suspension Strut Disposal
Caution: Use the proper eye protection when drilling to prevent metal chips from causing physical
injury.
1. Clamp the strut in a vise horizontally with the rod (1) completely extended. 2. Drill a hole in the
strut at the center of the end cap (3) using a 5 mm (3/16 in) drill bit. Gas or a gas/oil mixture will
exhaust when the drill bit
penetrates the strut. Use shop towels in order to contain the escaping oil.
3. Remove the strut from the vise. 4. Hold the strut over a drain pan vertically with the hole down.
5. Move the rod (1) in and out of the tube (2) to completely drain the oil from the strut.
Strut Assembly Replacement
Strut Assembly Replacement
Removal Procedure
1. Remove the 3 upper strut mount bolts. 2. Raise and support the vehicle. Refer to Vehicle Lifting.
3. Remove the wheel and tire assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Service and Repair > Front Suspension Strut > Page 13325
4. Remove the brake hose bracket bolt from the strut assembly.
5. Remove the stabilizer link nut and separate the link from the strut assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Service and Repair > Front Suspension Strut > Page 13326
6. Remove the lower strut bolts and nuts. Discard the bolts and nuts. 7. Remove the strut assembly
from the vehicle.
Installation Procedure
Notice: Refer to Fastener Notice.
1. Position the strut assembly to the vehicle. 2. Install the 3 upper strut mount bolts.
Tighten the upper strut mount bolts to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Service and Repair > Front Suspension Strut > Page 13327
3. Install the lower strut bolts and nuts.
Tighten the bolts and nuts to 180 N.m (133 lb ft).
Important: Inspect the stabilizer link seals for damage prior to installation. Replace as required.
Important: Do not allow the stabilizer link ball stud to rotate while installing the link nut.
4. Position the stabilizer link to the strut and install the nut.
Tighten the nut to 65 N.m (48 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Service and Repair > Front Suspension Strut > Page 13328
5. Position the brake hose bracket to the strut assembly and install the bolt.
Tighten the brake bracket bolt to 15 N.m (11 lb ft).
6. Install the wheel and tire. 7. Lower the vehicle. 8. Perform a wheel alignment. Refer to
Measuring Wheel Alignment.
Strut, Strut Component and/or Spring Replacement
Strut, Strut Component and/or Spring Replacement
Tools Required
* J 42991 Strut Rod Nut Socket
* J 45400 Strut Spring Compressor
Removal Procedure
1. Install the strut assembly in the J 45400 using the following procedure.
1. Adjust the lower legs of the J 45400 to the lowest possible coil of the spring. 2. Adjust the upper
legs of the J 45400 to the highest possible coil of the spring. 3. Inspect the strut assembly to insure
hooks on the strut compress legs are properly installed on the spring coils. 4. Verify the strut
assembly is parallel with the J 45400.
2. Compress the spring enough to unload the upper strut mount.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Service and Repair > Front Suspension Strut > Page 13329
Notice: Do not allow the absorber rod to rotate during disassembly/reassembly. Use hand tools to
keep the absorber rod from rotating. If air tools are used, and the rod is allowed to rotate, damage
to the absorber may occur.
3. Use the J 42991 or equivalent hand tools to remove the strut shaft nut.
Important: Leave the spring in the spring compressor.
4. Lower the strut from the spring assembly.
Notice: Do not handle the top mount assembly by the plastic portion. Handle the top mount
assembly by the metal portion when removing/installing the top mount from/to the strut assembly.
Holding the top mount assembly by the plastic portion may loosen the snap fit of the bearing
components and cause the bearing to fall apart.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Service and Repair > Front Suspension Strut > Page 13330
5. Remove the upper mount assembly, inspect for damage and deterioration. Replace as
necessary. 6. Remove the strut dust shield and inspect for damage and deterioration. Replace as
necessary. 7. Remove the hollow bumper from the strut shaft and inspect for damage and
deterioration. Replace as necessary. 8. Inspect the spring for damage. Replace as necessary.
Installation Procedure
1. Extend the strut to its limit of travel. 2. Install the hollow bumper and dust boot to the strut shaft.
Important: The tag identifying the spring will be closer to the bottom of the spring. The end of the
cold sits up against the tab on the spring seat.
3. With the spring in the compressor, install the strut into the spring.
Important: The anti-rotation tab on the spring seat must face 180 degrees from the direction that
the knuckle bracket points.
4. Assemble the upper spring seat onto the strut shaft and align the flat with the strut to knuckle
mounting bracket.
Notice: Do not handle the top mount assembly by the plastic portion. Handle the top mount
assembly by the metal portion when removing/installing the top mount from/to the strut assembly.
Holding the top mount assembly by the plastic portion may loosen the snap fit of the bearing
components and cause the bearing to fall apart.
Important: The flat on the metal plate of the top mount assembly must face the same direction of
the anti-rotation tab on the spring seat.
5. Assemble the top mount onto the strut shaft and align the flat 180 degrees from flat on the upper
spring seat.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Service and Repair > Front Suspension Strut > Page 13331
6. Loosely install the strut shaft nut.
Notice: Do not allow the absorber rod to rotate during disassembly/reassembly. Use hand tools to
keep the absorber rod from rotating. If air tools are used, and the rod is allowed to rotate, damage
to the absorber may occur.
Notice: Refer to Fastener Notice in Service Precautions.
7. Hold the strut shaft and use the J 42991 or equivalent hand tools to tighten the shaft while
verifying that the upper spring seat flats align with the
top mount.
Tighten the strut shaft to 75 N.m (55 lb ft).
8. Release the tension on the J 45400. 9. Remove the strut assembly from the J 45400.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Service and Repair > Front Suspension Strut > Page 13332
Suspension Strut / Shock Absorber: Service and Repair Rear Suspension Shock Absorber
Shock Absorber Replacement
Shock Absorber Replacement
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the rear tire and wheel
assembly.
3. Remove the lower shock bolt and nut.
4. Remove the upper shock bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Service and Repair > Front Suspension Strut > Page 13333
5. Remove the shock from the vehicle.
Installation Procedure
1. Position the shock to the vehicle.
Notice: Refer to Fastener Notice.
2. Install the upper shock bolt.
Tighten the bolt to 110 N.m (81 lb ft).
3. Install the lower shock bolt and nut.
Tighten the bolt to 110 N.m (81 lb ft).
4. Install the rear tire and wheel assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Strut / Shock Absorber > Component
Information > Service and Repair > Front Suspension Strut > Page 13334
5. Lower the vehicle.
Shock Absorber Disposal
Shock Absorber Disposal
Caution: Gas charged shock absorbers contain high pressure gas. Do not remove the snap ring
from inside the top of the tube. If the snap ring is removed, the contents of the shock absorber will
come out with extreme force which may result in personal injury.
Caution: To prevent personal injury, wear safety glasses when centerpunching and drilling the
shock absorber. Use care not to puncture the shock absorber tube with the centerpunch.
1. Make an indentation 10 mm (0.4 in) from the bottom (4) of the tube (3) using a centerpunch. 2.
Clamp the shock absorber in a vise horizontally with the shock absorber rod (1) completely
extended. 3. Drill a hole in the shock absorber at the centerpunch (4) using a 5 mm (3/16 in) drill
bit. Gas or a gas/oil mixture will exhaust when the drill bit
penetrates the shock absorber. Use shop towels in order to contain the escaping oil.
4. Make an indentation in the middle (2) of the tube (3) with a centerpunch. 5. Drill a second hole in
the shock absorber at the centerpunch (2) using a 5 mm (3/16 in) drill bit. Oil will exhaust when the
drill bit penetrates the
shock absorber. Use shop towels in order to contain the escaping oil.
6. Remove the shock absorber from the vise. Hold the shock absorber over a drain pan horizontally
with the holes down. Move the rod (1) in and out
of the tube (3) to completely drain the oil from the shock absorber.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Suspension Travel Bumper > Component
Information > Service and Repair
Suspension Travel Bumper: Service and Repair
Spring Jounce Bumper Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Trailing Arm > Component Information > Service
and Repair > Trailing Arm Replacement
Trailing Arm: Service and Repair Trailing Arm Replacement
Trailing Arm Replacement
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the park brake cable routing bolt from the trailing arm. 3. Remove the park brake cable
routing bolt from the frame.
4. Remove the 3 trailing arm bracket to body bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Trailing Arm > Component Information > Service
and Repair > Trailing Arm Replacement > Page 13342
5. Remove the trailing arm bushing to bracket nut and bolt.
6. Remove the trailing arm to knuckle bolts. 7. Remove the trailing arm.
Installation Procedure
1. Position the trailing arm to the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Trailing Arm > Component Information > Service
and Repair > Trailing Arm Replacement > Page 13343
Notice: Refer to Fastener Notice.
2. Install the trailing arm to knuckle bolts.
Tighten the bolts to 110 N.m (81 lb ft).
3. Position the trailing arm bracket to the trailing arm.
4. Loosely install the trailing arm bushing to bracket nut and bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Trailing Arm > Component Information > Service
and Repair > Trailing Arm Replacement > Page 13344
5. Push upward on the trailing arm and loosely install the front bolt. 6. Use a drift to align the
remaining bolts.
Tighten the trailing arm bracket to body bolts to 110 N.m (81 lb ft).
7. Tighten the trailing arm bushing to bracket nut and bolt.
Tighten the bolt to 160 N.m (118 lb ft).
8. Install the park brake cable routing bolt to the frame.
Tighten the routing bolt to 12 N.m (106 lb in).
9. Install the park brake cable routing bolt to the trailing arm.
Tighten the routing bolt to 12 N.m (106 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Trailing Arm > Component Information > Service
and Repair > Trailing Arm Replacement > Page 13345
10. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Trailing Arm > Component Information > Service
and Repair > Trailing Arm Replacement > Page 13346
Trailing Arm: Service and Repair Trailing Arm Bracket Replacement
Trailing Arm Bracket Replacement
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the park brake cable routing bolt from the trailing arm. 3. Remove the park brake cable
routing bolt from the frame.
4. Remove the 3 trailing arm bracket to body bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Trailing Arm > Component Information > Service
and Repair > Trailing Arm Replacement > Page 13347
5. Remove the trailing arm bushing to bracket nut and bolt. 6. Remove the trailing arm bracket.
Installation Procedure
1. Position the trailing arm bracket to the trailing arm.
2. Loosely install the trailing arm bushing to bracket nut and bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Trailing Arm > Component Information > Service
and Repair > Trailing Arm Replacement > Page 13348
3. Push upward on the trailing arm bracket and loosely install the front bolt.
Notice: Refer to Fastener Notice.
4. Use a drift to align the remaining trailing arm bracket bolts.
Tighten the trailing arm bracket to body bolts to 110 N.m (81 lb ft).
5. Tighten the trailing arm bushing to bracket nut and bolt.
Tighten the bolt to 160 N.m (118 lb ft).
6. Install the park brake cable routing bolt to the frame.
Tighten the routing bolt to 12 N.m (106 lb in).
7. Install the park brake cable routing bolt to the trailing arm.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Trailing Arm > Component Information > Service
and Repair > Trailing Arm Replacement > Page 13349
Tighten the routing bolt to 12 N.m (106 lb in).
8. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Wheel Bearing > Component Information >
Testing and Inspection
Wheel Bearing: Testing and Inspection
Wheel Bearings Diagnosis
Step 1 - Step 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Wheel Bearing > Component Information >
Service and Repair > Front Suspension
Wheel Bearing: Service and Repair Front Suspension
Wheel Bearing/Hub Replacement - Front
Removal Procedure
1. Remove the front brake rotor.
2. Disconnect the wheel speed sensor electrical connector, if equipped.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Wheel Bearing > Component Information >
Service and Repair > Front Suspension > Page 13355
3. Remove the wheel speed sensor electrical connector form the connector bracket.
4. Remove the front wheel drive shaft spindle nut. 5. Remove the speed sensor.
6. Support the wheel drive shaft with heavy mechanic's wire or equivalent. 7. Remove and discard
the wheel bearing/hub mounting bolts. 8. Remove the wheel bearing/hub assembly from the
steering knuckle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Wheel Bearing > Component Information >
Service and Repair > Front Suspension > Page 13356
1. Install the wheel bearing/hub assembly to the steering knuckle.
Notice: Refer to Fastener Notice.
2. Install the wheel bearing/hub mounting bolts.
Tighten the bolts to 130 N.m (96 lb ft).
3. Install the wheel drive shaft spindle nut.
Tighten the nut to 205 N.m (151 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Wheel Bearing > Component Information >
Service and Repair > Front Suspension > Page 13357
4. Install the wheel speed sensor electrical connector to the mounting bracket, if equipped.
5. Connect the wheel speed sensor electrical connector. 6. Install the speed sensor.
7. Install the front brake rotor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Wheel Bearing > Component Information >
Service and Repair > Front Suspension > Page 13358
Wheel Bearing: Service and Repair Rear Suspension
Wheel Bearing/Hub Replacement - Rear
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Wheel Bearing > Component Information >
Service and Repair > Front Suspension > Page 13359
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Suspension > Wheel Hub > Axle Nut > Component Information
> Specifications
Axle Nut: Specifications
Front Wheel Drive Shaft Spindle Nut
.........................................................................................................................................................
205 Nm 151 lb ft Rear Wheel Drive Shaft Spindle Nut
............................................................................................................................................................
110 Nm 81 lb ft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Vehicle Lifting > Component Information >
Service and Repair
Vehicle Lifting: Service and Repair
Lifting and Jacking the Vehicle
Caution: To avoid any vehicle damage, serious personal injury or death when major components
are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack
stands at the opposite end from which the components are being removed.
Caution: To avoid any vehicle damage, serious personal injury or death, always use the jackstands
to support the vehicle when lifting the vehicle with a jack.
Notice: Perform the following steps before beginning any vehicle lifting or jacking procedure:
* Remove or secure all of the vehicle's contents in order to avoid any shifting or any movement that
may occur during the vehicle lifting or jacking procedure.
* The lifting equipment or the jacking equipment weight rating must meet or exceed the weight of
the vehicle and any vehicle contents.
* The lifting equipment or the jacking equipment must meet the operational standards of the lifting
equipment or jacking equipment's manufacturer.
* Perform the vehicle lifting or jacking procedure on a clean, hard, dry, level surface.
* Perform the vehicle lifting or jacking procedure only at the identified lift points. DO NOT allow the
lifting equipment or jacking equipment to contact any other vehicle components.
Failure to perform the previous steps could result in damage to the lifting equipment or the jacking
equipment, the vehicle, and/or the vehicle's contents.
Vehicle Lifting-Frame Contact Lift
Front Lift Pads
When lifting the vehicle with a frame-contact lift, place the front lift pads approximately 12.2 in (310
mm) inboard from the front pinchweld flanges.
Rear Lift Pads
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Vehicle Lifting > Component Information >
Service and Repair > Page 13368
When lifting the vehicle with a frame-contact lift, place the rear lift pads 10.0 in (255 mm) inboard
from the rear pinchweld flanges.
Vehicle Jacking
Under the Center of the Rear Suspension
Lift the rear of the vehicle by placing the floor jack lift pad at the center of the rear suspension.
Supporting the Vehicle with Jackstands
Important: Place jackstands ONLY under strong and stable vehicle structures.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Relays and Modules - Wheels and Tires >
Tire Pressure Module > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs
Tire Pressure Module: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Relays and Modules - Wheels and Tires >
Tire Pressure Monitor Receiver / Transponder > Component Information > Technical Service Bulletins > Tire Monitor
System - TPM Sensor Information
Tire Pressure Monitor Receiver / Transponder: Technical Service Bulletins Tire Monitor System TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Sensors and Switches - Wheels and Tires
> Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs
Tire Pressure Sensor: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Sensors and Switches - Wheels and Tires
> Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 13383
Tire Pressure Sensor: Technical Service Bulletins Tire Monitor System - TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Sensors and Switches - Wheels and Tires
> Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 13384
Tire Pressure Sensor: Technical Service Bulletins Tires - Minimizing Damage to TPM Sensors
INFORMATION
Bulletin No.: 08-03-10-007
Date: May 16, 2008
Subject: Minimizing Damage to Tire Pressure Monitor (TPM) Sensors During Tire
Mounting/Dismounting
Models: 2009 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2009 and
Prior HUMMER H2, H3 2009 and Prior Saab 9-7X
with Wheel Mounted Tire Pressure Sensors
Minimizing Damage To TPM Sensors
All GM vehicles now in production and sold in the U.S., as well as many vehicles sold in Canada,
feature Tire Pressure Monitoring Systems that have valve stem mounted Tire Pressure Sensors.
When dismounting and mounting tires, care must be taken when breaking the bead loose from the
wheel. If the tire machines bead breaking fixture is positioned too close to the tire pressure sensor,
as the tire bead breaks away from the wheel it may be forced into, or catch on the edge of the tire
pressure sensor. This can damage the sensor and require the sensor to be replaced.
Care must also be taken when transferring the tire bead to the other side of the wheel rim. As the
tire machine rotates and the tire bead is stretched around the wheel rim, the bead can come in
contact with the sensor if it is not correctly positioned in relation to the mounting/dismounting head
prior to tire mounting/dismounting. This can also cause sensor damage requiring replacement.
Procedure
Notice:
Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in
order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result.
Notice:
Do not scratch or damage the clear coating on aluminum wheels with the tire changing equipment.
Scratching the clear coating could cause the aluminum wheel to corrode and the clear coating to
peel from the wheel.
1. Remove the valve core from the valve stem.
2. Deflate the tire completely.
Important:
Rim-clamp European-type tire changers are recommended.
3. Use the tire changer in order to remove the tire from the wheel. Follow steps 4-7 to remove the
tire from the wheel.
4. When separating the tire bead from the wheel position the bead breaking fixture 90, 180 and 270
degrees from the valve stem.
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Sensors and Switches - Wheels and Tires
> Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 13385
5. Position the wheel and tire so the valve stem is situated at the 2 o'clock position relative to the
head. The tire iron or pry bar can be inserted when prying the outer tire bead up and over the
mounting/dismounting head.
6. Position the wheel and tire so that the valve stem is situated again at the 2 o'clock position
relative to the head. The tire iron or pry bar can be inserted when prying the inner tire bead up and
over the mounting/dismounting head.
7. Remove all residual liquid sealant from the inside of the tire and wheel surfaces. If any tire
sealant is noted upon tire dismounting on vehicles equipped with TPM replace the tire pressure
sensor.
8. Use a wire brush or coarse steel wool in order to remove any rubber, light rust or corrosion from
the wheel bead seats.
Important:
If bead seat corrosion has been identified as an air loss concern on the wheel being worked on,
refer to GM Service Bulletin # 08-03-10-006 for additional information on correcting the leak.
9. Apply GM P/N 12345884 (in Canada, P/N 5728223) or equivalent to the tire bead and the wheel
rim.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Sensors and Switches - Wheels and Tires
> Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 13386
10. Using the tire machine, rotate the tire/wheel assembly clockwise when transferring the tire bead
to the inside of the wheel rim.
11. Position the rim so that the valve stem (1) is situated at the 3 o'clock position relative to the
head (2). This will protect the sensor when the bottom bead seats.
12. After the bottom bead is on the wheel, reposition the wheel and tire so that the valve stem is
situated at the 9 o'clock position relative to the head. This will protect the sensor while mounting
the tire bead to the outside of the wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Sensors and Switches - Wheels and Tires
> Tire Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 13387
13. Use the tire changer in order to install the tire to the wheel.
Caution:
To avoid serious personal injury, do not stand over tire when inflating. The bead may break when
the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any
tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, lubricate
the beads and reinflate. Overinflating may cause the bead to break and cause serious personal
injury.
Important:
Allowable bead seating pressure is 345 kPa (50 psi) on Extended Mobility Tires.
14. Inflate the tire until it passes the bead humps. Be sure that the valve core is not installed at this
time.
15. Install the valve core to the valve core stem.
16. Inflate the tire to the proper air pressure.
17. Ensure that the locating rings are visible on both sides of the tire in order to verify that the tire
bead is fully seated on the wheel.
Parts Information
The product shown above is available from GM SPO.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tire Monitoring System > Low Tire
Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips
Low Tire Pressure Indicator: Technical Service Bulletins Tire Pressure Monitor - TPM System
Message/Service Tips
# 09-03-16-002A: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive
for Tire Pressure Monitor (TPM) System Message, Light and Customer Information - (Apr 27, 2010)
Subject: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire
Pressure Monitor (TPM) System Message, Light and Customer Information
Models: 2006-2011 Cars and Light Duty Trucks (Including Saturn and Saab)
2006-2010 HUMMER H2, H3
ATTENTION
The information found in this bulletin is to be used as a dealership service consultant procedures
for customers coming into the service lane with an illuminated "low tire light" or comments on a
check tire pressure/low tire pressure/add air to tire or service tire monitor system message.
Maintaining proper tire pressures is an Owner's Maintenance item and is not covered under
warranty.
This bulletin is being revised to add model years and update additional bulletin reference
information. Please discard Corporate Bulletin Number 09-03-16-002 (Section 03 -- Suspension).
Customer Concerns and Confusion with the Tire Pressure Monitoring (TPM) System
The following procedure should be used by dealership service consultants when a customer comes
into the service drive with a "low tire light" on or comments on a check tire pressure/low tire
pressure/add air to tire or service tire monitor system message. The service consultant should
perform the following steps:
Procedure
Turn the key to ON, without starting the engine.
^ If the low tire light comes on and stays on solid with a check tire pressure/low tire pressure/add
air to tire message (on vehicles equipped with DIC),
advise the customer:
- The system is working properly.
- Properly adjusting all tire air pressures to the recommended levels and driving the vehicle will turn
the light off (refer to the Tire and Loading Information label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
^ If the Tire Pressure Monitor (TPM) light blinks for one minute then stays on solid with a service
tire monitor system message (on vehicles equipped
with DIC):
- A TPM system problem exists. The vehicle should be written up accordingly and sent to your
service department for further DTC diagnosis and service.
- If dashes (--) are displayed in only one or two of the tire pressure readouts, it is likely caused by a
previous TPM system relearn that was performed incorrectly due to interference from another
vehicle's TPM system during the relearn process (refer to the Important statement later in this
bulletin regarding TPM relearn with a Tech 2(R)).
- If dashes (--) are displayed in all four of the tire pressure readouts, there is a system problem.
Follow the appropriate SI service procedures.
^ If a customer indicates the low tire light comes on for a few minutes when the vehicle is started,
then goes off after driving a while, advise the
customer:
- The system is working properly.
- Most likely, air pressure in one or more of the tires is low enough to turn the light on when tires
are cold. After driving for a while, tires will heat
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tire Monitoring System > Low Tire
Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips > Page 13393
up, allowing tire air pressure to increase above the threshold causing the light to go off. Properly
adjusting all tire air pressures to the recommended levels will correct this (Refer to the Tire and
Loading Information Label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
For more detailed information, refer to Corporate Bulletin Number 07-03-16-004C and TPMS
Training Course 13044.12T2.
Tire Pressure Light
At key on, without starting the vehicle:
Steady Solid Glowing TPM Indicator
If the TPM indicator appears as a steady glowing yellow lamp (as above), the system is functioning
properly and you should add air to the tires to correct this condition.
Blinking TPM Indicator
If the TPM indicator appears as a BLINKING yellow lamp for one minute and then stays on solid,
diagnostic service is needed.
The Effect of Outside Temperature on Tire Pressures
Important:
As a rule of thumb, tire pressure will change about 7kPa (1 psi) for every 6°C (10°F) decrease in
temperature - Tire pressure will drop when it gets colder outside, and rise when it gets warmer.
Under certain situations such as extreme outside temperature changes, the system may bring on a
solid light with a check tire pressure message. This should be considered normal and the system is
working properly. The light will turn off upon adding the proper amount of air to the tires (refer to the
Tire & Loading Information label in the driver's door opening). When properly adjusting tire air
pressure, the following steps are important to help optimize the system and prolong bringing a tire
pressure light on:
^ Use an accurate, high quality tire pressure gauge.
^ Never set the tire pressure below the specified placard value regardless of tire temperature or
ambient temperature.
^ Tire pressure should be set to the specified placard pressure at the lowest seasonal temperature
the vehicle will encounter during operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tire Monitoring System > Low Tire
Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips > Page 13394
^ When adding proper tire air pressure, it is important to remember fluctuations in outside air
temperatures and tire temperatures effect tire air pressures.
^ After you have added the proper tire pressure, if the vehicle has a DIC (after the system has
updated), check to see if DIC displays are the same
readings as the tire pressure gauge used (adjust as necessary).
^ Only perform a TPM sensor re-learn after a tire rotation or system part replacements and use the
Tech 2(R) to initiate the relearn whenever possible to
avoid invalid sensor I.D. learns.
Important:
Always take outside temperature and tire temperature into consideration to properly set tire
pressures. Foe example, on colder days (20°F/-7°C), if setting tire pressure when the vehicle has
been indoors (60°F/16°C) or the tires are warm from being driven, it will be necessary to
compensate for the low outside temperature by adding 21-27 kPa (3-4 psi) more then the
placecard pressure. At some later time, when the vehicle has been parked outside for a while, the
tires will cool off and the pressures will drop back into the placecard range.
Important:
Recently, nitrogen gas (for use in inflating tires) has become available to the general customer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. Tires inflated with nitrogen gas may exhibit less of a pressure change in response to
outside temperature changes. Nitrogen gas inflation is compatible with GM TPM sensors. For
additional information, refer to Corporate Service Bulletin 05-03-10-020C.
Important:
All Models (Except the Pontiac Vibe): Do not perform a TPM relearn at PDI, the system has already
been set at the Assembly Plant. Do not perform a TPM relearn after adding air to the tires. The low
tire light is similar to the low fuel indicator and adding something (fuel, air) to the vehicle makes that
light turn back off again. Note that because of system behavior, some vehicles must be driven a
short distance before the sensors recognize the increase in pressure and turns the light off again.
Pontiac Vibe Only: Do not use the TPMS reset button to turn off the light. The system will update
and light will turn off when all tire pressures have been adjusted followed by short distance drive.
Important:
All models (except the Pontiac Vibe): Each tire monitor sensor is learned to a specific vehicle
corner. When performing a TPM relearn (only after a tire rotation or replacement of a TPM sensor
or Module), always use the Tech2(R) to initiate the J 46079 relearned process. Tech 2(R) - initiated
relearns lock out other vehicle TPM signals that may be broadcasting in the area. Only signals
initiated by the J 46079 tool will be accepted. This method avoids storing false TPM I.D.s and will
prevent customers from returning with dashes (--) displayed in tire pressure readouts and/or a
flashing tire pressure monitor (TPM) light. Checking the four TPM I.D.s with the Tech 2(R) prior to
and following relearn to verify they are the same can prevent invalid I.D. learns.
Pontiac Vibe Only: Tire Monitor Sensors are not learned to a specific vehicle corner. Do not
perform a TPM Reset after tire rotation. The TPMS Reset button must only be used during
pre-delivery inspection by the dealer to initialize the system (after all tire pressures have been
adjusted properly) or when a Tire Pressure Monitor System component is replaced. The J 46079
tool does not work on Vibe TPM sensors. A TPMS relearn on Vibe must be preformed with a Tech
2(R) to set the TPMS Module in learn mode. The TPMS sensor IDs are entered through the Tech
2(R). Refer to SI for further Vibe TPMS information.
Labor Operation and Repair Order/Warranty System Claim Required Documentation
Important:
The ONLY time labor operation E0726 or E0722 should be used is to diagnose for a system issue.
That should ONLY occur if, at key ON, without starting the engine, the Tire Pressure Monitor (TPM)
blinks for one minute and then stays on solid with a Service Tire Monitor System message (on
vehicles equipped with a DIC) If that occurs, a TPM system problem exists and the system will
have set a DTC. If one of these operastions is used, the following Repair Order and Warranty
System documentation are required:
^ Document the customer complaint on the Repair Order.
^ Document the TPMS DTC that has set on the Repair Order.
^ Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim
submission (refer to the Claims Processing Manual,
Section IV, Warranty claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim
may be rejected. If the Warranty Parts Center (WPC) generates a request, this repair order
documentation must be sent back.
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tire Monitoring System > Low Tire
Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips > Page 13395
Customer TPMS Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips > Page 13396
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Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips > Page 13397
Frequently Asked Questions
Disclaimer
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Module > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs
Tire Pressure Module: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tire Monitoring System > Tire Pressure
Monitor Receiver / Transponder > Component Information > Technical Service Bulletins > Tire Monitor System - TPM
Sensor Information
Tire Pressure Monitor Receiver / Transponder: Technical Service Bulletins Tire Monitor System TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
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Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning Sensor IDs
Tire Pressure Sensor: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
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Page 13410
Tire Pressure Sensor: Technical Service Bulletins Tire Monitor System - TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
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Page 13411
Tire Pressure Sensor: Technical Service Bulletins Tires - Minimizing Damage to TPM Sensors
INFORMATION
Bulletin No.: 08-03-10-007
Date: May 16, 2008
Subject: Minimizing Damage to Tire Pressure Monitor (TPM) Sensors During Tire
Mounting/Dismounting
Models: 2009 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2009 and
Prior HUMMER H2, H3 2009 and Prior Saab 9-7X
with Wheel Mounted Tire Pressure Sensors
Minimizing Damage To TPM Sensors
All GM vehicles now in production and sold in the U.S., as well as many vehicles sold in Canada,
feature Tire Pressure Monitoring Systems that have valve stem mounted Tire Pressure Sensors.
When dismounting and mounting tires, care must be taken when breaking the bead loose from the
wheel. If the tire machines bead breaking fixture is positioned too close to the tire pressure sensor,
as the tire bead breaks away from the wheel it may be forced into, or catch on the edge of the tire
pressure sensor. This can damage the sensor and require the sensor to be replaced.
Care must also be taken when transferring the tire bead to the other side of the wheel rim. As the
tire machine rotates and the tire bead is stretched around the wheel rim, the bead can come in
contact with the sensor if it is not correctly positioned in relation to the mounting/dismounting head
prior to tire mounting/dismounting. This can also cause sensor damage requiring replacement.
Procedure
Notice:
Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in
order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result.
Notice:
Do not scratch or damage the clear coating on aluminum wheels with the tire changing equipment.
Scratching the clear coating could cause the aluminum wheel to corrode and the clear coating to
peel from the wheel.
1. Remove the valve core from the valve stem.
2. Deflate the tire completely.
Important:
Rim-clamp European-type tire changers are recommended.
3. Use the tire changer in order to remove the tire from the wheel. Follow steps 4-7 to remove the
tire from the wheel.
4. When separating the tire bead from the wheel position the bead breaking fixture 90, 180 and 270
degrees from the valve stem.
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Page 13412
5. Position the wheel and tire so the valve stem is situated at the 2 o'clock position relative to the
head. The tire iron or pry bar can be inserted when prying the outer tire bead up and over the
mounting/dismounting head.
6. Position the wheel and tire so that the valve stem is situated again at the 2 o'clock position
relative to the head. The tire iron or pry bar can be inserted when prying the inner tire bead up and
over the mounting/dismounting head.
7. Remove all residual liquid sealant from the inside of the tire and wheel surfaces. If any tire
sealant is noted upon tire dismounting on vehicles equipped with TPM replace the tire pressure
sensor.
8. Use a wire brush or coarse steel wool in order to remove any rubber, light rust or corrosion from
the wheel bead seats.
Important:
If bead seat corrosion has been identified as an air loss concern on the wheel being worked on,
refer to GM Service Bulletin # 08-03-10-006 for additional information on correcting the leak.
9. Apply GM P/N 12345884 (in Canada, P/N 5728223) or equivalent to the tire bead and the wheel
rim.
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Page 13413
10. Using the tire machine, rotate the tire/wheel assembly clockwise when transferring the tire bead
to the inside of the wheel rim.
11. Position the rim so that the valve stem (1) is situated at the 3 o'clock position relative to the
head (2). This will protect the sensor when the bottom bead seats.
12. After the bottom bead is on the wheel, reposition the wheel and tire so that the valve stem is
situated at the 9 o'clock position relative to the head. This will protect the sensor while mounting
the tire bead to the outside of the wheel.
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Page 13414
13. Use the tire changer in order to install the tire to the wheel.
Caution:
To avoid serious personal injury, do not stand over tire when inflating. The bead may break when
the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any
tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, lubricate
the beads and reinflate. Overinflating may cause the bead to break and cause serious personal
injury.
Important:
Allowable bead seating pressure is 345 kPa (50 psi) on Extended Mobility Tires.
14. Inflate the tire until it passes the bead humps. Be sure that the valve core is not installed at this
time.
15. Install the valve core to the valve core stem.
16. Inflate the tire to the proper air pressure.
17. Ensure that the locating rings are visible on both sides of the tire in order to verify that the tire
bead is fully seated on the wheel.
Parts Information
The product shown above is available from GM SPO.
Disclaimer
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Technical
Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips
Tires: Technical Service Bulletins Tire Pressure Monitor - TPM System Message/Service Tips
# 09-03-16-002A: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive
for Tire Pressure Monitor (TPM) System Message, Light and Customer Information - (Apr 27, 2010)
Subject: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire
Pressure Monitor (TPM) System Message, Light and Customer Information
Models: 2006-2011 Cars and Light Duty Trucks (Including Saturn and Saab)
2006-2010 HUMMER H2, H3
ATTENTION
The information found in this bulletin is to be used as a dealership service consultant procedures
for customers coming into the service lane with an illuminated "low tire light" or comments on a
check tire pressure/low tire pressure/add air to tire or service tire monitor system message.
Maintaining proper tire pressures is an Owner's Maintenance item and is not covered under
warranty.
This bulletin is being revised to add model years and update additional bulletin reference
information. Please discard Corporate Bulletin Number 09-03-16-002 (Section 03 -- Suspension).
Customer Concerns and Confusion with the Tire Pressure Monitoring (TPM) System
The following procedure should be used by dealership service consultants when a customer comes
into the service drive with a "low tire light" on or comments on a check tire pressure/low tire
pressure/add air to tire or service tire monitor system message. The service consultant should
perform the following steps:
Procedure
Turn the key to ON, without starting the engine.
^ If the low tire light comes on and stays on solid with a check tire pressure/low tire pressure/add
air to tire message (on vehicles equipped with DIC),
advise the customer:
- The system is working properly.
- Properly adjusting all tire air pressures to the recommended levels and driving the vehicle will turn
the light off (refer to the Tire and Loading Information label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
^ If the Tire Pressure Monitor (TPM) light blinks for one minute then stays on solid with a service
tire monitor system message (on vehicles equipped
with DIC):
- A TPM system problem exists. The vehicle should be written up accordingly and sent to your
service department for further DTC diagnosis and service.
- If dashes (--) are displayed in only one or two of the tire pressure readouts, it is likely caused by a
previous TPM system relearn that was performed incorrectly due to interference from another
vehicle's TPM system during the relearn process (refer to the Important statement later in this
bulletin regarding TPM relearn with a Tech 2(R)).
- If dashes (--) are displayed in all four of the tire pressure readouts, there is a system problem.
Follow the appropriate SI service procedures.
^ If a customer indicates the low tire light comes on for a few minutes when the vehicle is started,
then goes off after driving a while, advise the
customer:
- The system is working properly.
- Most likely, air pressure in one or more of the tires is low enough to turn the light on when tires
are cold. After driving for a while, tires will heat
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Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 13419
up, allowing tire air pressure to increase above the threshold causing the light to go off. Properly
adjusting all tire air pressures to the recommended levels will correct this (Refer to the Tire and
Loading Information Label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
For more detailed information, refer to Corporate Bulletin Number 07-03-16-004C and TPMS
Training Course 13044.12T2.
Tire Pressure Light
At key on, without starting the vehicle:
Steady Solid Glowing TPM Indicator
If the TPM indicator appears as a steady glowing yellow lamp (as above), the system is functioning
properly and you should add air to the tires to correct this condition.
Blinking TPM Indicator
If the TPM indicator appears as a BLINKING yellow lamp for one minute and then stays on solid,
diagnostic service is needed.
The Effect of Outside Temperature on Tire Pressures
Important:
As a rule of thumb, tire pressure will change about 7kPa (1 psi) for every 6°C (10°F) decrease in
temperature - Tire pressure will drop when it gets colder outside, and rise when it gets warmer.
Under certain situations such as extreme outside temperature changes, the system may bring on a
solid light with a check tire pressure message. This should be considered normal and the system is
working properly. The light will turn off upon adding the proper amount of air to the tires (refer to the
Tire & Loading Information label in the driver's door opening). When properly adjusting tire air
pressure, the following steps are important to help optimize the system and prolong bringing a tire
pressure light on:
^ Use an accurate, high quality tire pressure gauge.
^ Never set the tire pressure below the specified placard value regardless of tire temperature or
ambient temperature.
^ Tire pressure should be set to the specified placard pressure at the lowest seasonal temperature
the vehicle will encounter during operation.
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Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 13420
^ When adding proper tire air pressure, it is important to remember fluctuations in outside air
temperatures and tire temperatures effect tire air pressures.
^ After you have added the proper tire pressure, if the vehicle has a DIC (after the system has
updated), check to see if DIC displays are the same
readings as the tire pressure gauge used (adjust as necessary).
^ Only perform a TPM sensor re-learn after a tire rotation or system part replacements and use the
Tech 2(R) to initiate the relearn whenever possible to
avoid invalid sensor I.D. learns.
Important:
Always take outside temperature and tire temperature into consideration to properly set tire
pressures. Foe example, on colder days (20°F/-7°C), if setting tire pressure when the vehicle has
been indoors (60°F/16°C) or the tires are warm from being driven, it will be necessary to
compensate for the low outside temperature by adding 21-27 kPa (3-4 psi) more then the
placecard pressure. At some later time, when the vehicle has been parked outside for a while, the
tires will cool off and the pressures will drop back into the placecard range.
Important:
Recently, nitrogen gas (for use in inflating tires) has become available to the general customer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. Tires inflated with nitrogen gas may exhibit less of a pressure change in response to
outside temperature changes. Nitrogen gas inflation is compatible with GM TPM sensors. For
additional information, refer to Corporate Service Bulletin 05-03-10-020C.
Important:
All Models (Except the Pontiac Vibe): Do not perform a TPM relearn at PDI, the system has already
been set at the Assembly Plant. Do not perform a TPM relearn after adding air to the tires. The low
tire light is similar to the low fuel indicator and adding something (fuel, air) to the vehicle makes that
light turn back off again. Note that because of system behavior, some vehicles must be driven a
short distance before the sensors recognize the increase in pressure and turns the light off again.
Pontiac Vibe Only: Do not use the TPMS reset button to turn off the light. The system will update
and light will turn off when all tire pressures have been adjusted followed by short distance drive.
Important:
All models (except the Pontiac Vibe): Each tire monitor sensor is learned to a specific vehicle
corner. When performing a TPM relearn (only after a tire rotation or replacement of a TPM sensor
or Module), always use the Tech2(R) to initiate the J 46079 relearned process. Tech 2(R) - initiated
relearns lock out other vehicle TPM signals that may be broadcasting in the area. Only signals
initiated by the J 46079 tool will be accepted. This method avoids storing false TPM I.D.s and will
prevent customers from returning with dashes (--) displayed in tire pressure readouts and/or a
flashing tire pressure monitor (TPM) light. Checking the four TPM I.D.s with the Tech 2(R) prior to
and following relearn to verify they are the same can prevent invalid I.D. learns.
Pontiac Vibe Only: Tire Monitor Sensors are not learned to a specific vehicle corner. Do not
perform a TPM Reset after tire rotation. The TPMS Reset button must only be used during
pre-delivery inspection by the dealer to initialize the system (after all tire pressures have been
adjusted properly) or when a Tire Pressure Monitor System component is replaced. The J 46079
tool does not work on Vibe TPM sensors. A TPMS relearn on Vibe must be preformed with a Tech
2(R) to set the TPMS Module in learn mode. The TPMS sensor IDs are entered through the Tech
2(R). Refer to SI for further Vibe TPMS information.
Labor Operation and Repair Order/Warranty System Claim Required Documentation
Important:
The ONLY time labor operation E0726 or E0722 should be used is to diagnose for a system issue.
That should ONLY occur if, at key ON, without starting the engine, the Tire Pressure Monitor (TPM)
blinks for one minute and then stays on solid with a Service Tire Monitor System message (on
vehicles equipped with a DIC) If that occurs, a TPM system problem exists and the system will
have set a DTC. If one of these operastions is used, the following Repair Order and Warranty
System documentation are required:
^ Document the customer complaint on the Repair Order.
^ Document the TPMS DTC that has set on the Repair Order.
^ Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim
submission (refer to the Claims Processing Manual,
Section IV, Warranty claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim
may be rejected. If the Warranty Parts Center (WPC) generates a request, this repair order
documentation must be sent back.
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Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 13421
Customer TPMS Information
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Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page 13423
Frequently Asked Questions
Disclaimer
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Service Bulletins > Technical Service Bulletins for Tires: > 10-03-16-001 > Jul > 10 > TPMS System - Service And
Re-Learning Sensor IDs
Tires: Technical Service Bulletins TPMS System - Service And Re-Learning Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
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Service Bulletins > Technical Service Bulletins for Tires: > 04-03-10-001F > Apr > 10 > Tires/Wheels - Tire Puncture Repair
Procedures
Tires: Technical Service Bulletins Tires/Wheels - Tire Puncture Repair Procedures
INFORMATION
Bulletin No.: 04-03-10-001F
Date: April 27, 2010
Subject: Tire Puncture Repair Procedures For All Cars and Light Duty Trucks
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2010 and Prior
HUMMER H2, H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 04-03-10-001E (Section 03 - Suspension).
This bulletin covers puncture repair procedures for passenger car and light duty truck radial tires in
the tread area only. The tire manufacturer must be contacted for its individual repair policy and
whether or not the speed rating is retained after repair.
Caution
- Tire changing can be dangerous and should be done by trained professionals using proper tools
and procedures. Always read and understand any manufacturer's warnings contained in their
customers literature or molded into the tire sidewall.
- Serious eye and ear injury may result from not wearing adequate eye and ear protection while
repairing tires.
- NEVER inflate beyond 275 kPa (40 pounds) pressure to seat beads.
Some run flat tires, such as the Goodyear Extended Mobility Tire (EMT) used on the Corvette, may
require more than 275 kPa (40 psi) to seat the bead. In such a case, a tire safety cage must be
used. Consult the tire manufacturer for its individual repair policy.
- NEVER stand, lean or reach over the assembly during inflation.
Repairable area on a radial tire.
Important
- NEVER repair tires worn to the tread indicators 1.59 mm (2/32") remaining depth).
- NEVER repair tires with a tread puncture larger than 6.35 mm (1/4").
- NEVER substitute an inner tube for a permissible or non-permissible repair.
- NEVER perform an outside-in tire repair (plug only, on the wheel).
- Every tire must be removed from the wheel for proper inspection and repair.
- Regardless of the type of repair used, the repair must seal the inner liner and fill the injury.
- Consult with repair material supplier/manufacturer for repair unit application procedures and
repair tools/repair material recommendations.
Three basic steps for tire puncture repair:
1. Remove the tire from the wheel for inspection and repair.
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Procedures > Page 13433
2. Fill the injury (puncture) to keep moisture out. 3. Seal the inner liner with a repair unit to prevent
air loss.
External Inspection
1. Prior to demounting, inspect the tire surface, the valve and the wheel for the source of the leak
by using a water and soap solution. Mark the
injured area and totally deflate the tire by removing the valve core.
2. Demount the tire from the wheel and place the tire on a well-lighted spreader.
Internal Inspection
1. Spread the beads and mark the puncture with a tire crayon. 2. Inspect the inner tire for any signs
of internal damage. 3. Remove the puncturing object, noting the direction of the penetration. 4.
Probe the injury with a blunt awl in order to determine the extent and direction of the injury. 5.
Remove any loose foreign material from the injury. 6. Punctures exceeding 6.35 mm (1/4") should
not be repaired.
Cleaning
1. Clean the area around the puncture thoroughly with a proper liner cleaner, clean cloth and a
scraper. This step serves to remove dirt and mold
lubricants to insure proper adhesion and non-contamination of the buffing tool.
2. Refer to information on the product or manufacturer's Material Safety Data Sheet and follow
guidelines for handling and disposal.
Clean the Injury Channel
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Procedures > Page 13434
1. Use a proper hand reamer, carbide cutter or drill bit to ream the puncture channel from the inside
of the tire in order to clean the injury. 2. Remove steel wires protruding above the liner surface to
prevent damage to the repair unit. 3. Consult your repair material supplier for recommended
reaming tool(s).
Fill the Injury
1. It is necessary to fill the injury channel to provide back up for the repair unit and to prevent
moisture from entering the tire fabric and steel wires. 2. (For combination repair/plug units skip this
step.) Cement the injured channel and fill the injury from the inside of the tire with the repair plug
per
repair material manufacturer's recommendations. Without stretching the plug, cut the plug off just
above the inside tire surface.
3. Consult your repair material supplier for proper repair material selection.
Repair Unit Selection
Important Do not install the repair unit in this step.
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Procedures > Page 13435
1. Center the repair unit over the injury as a reference and outline an area larger than the unit so
that buffing will not remove the crayon marks. 2. Remove the repair unit. 3. DO NOT overlap
previous or multiple repair units. 4. Consult your repair material supplier for proper repair unit
selection.
Buffing
1. To prevent contamination and preserve the outline, buff within the marked area thoroughly and
evenly with a low speed buffing tool using a fine
wire brush or gritted rasp.
2. Buff to a smooth velvet surface (RMA #1 or #2 buffed texture). 3. Use caution not to gouge the
inner liner or expose casing fabric. 4. Remove any buffing dust with a vacuum cleaner. 5. Consult
your repair material supplier for a proper buffing tool.
Cementing
Apply chemical cement according to the repair material manufacturer's procedures.
Repair Unit Application
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Procedures > Page 13436
1. The tire must be in the relaxed position when the repair unit is installed (Do not spread the beads
excessively).
Two-Piece Plug and Repair Units
1. If applicable, install the repair unit so that the alignment is correct. 2. Center the repair unit over
the injury and stitch down thoroughly with the stitching tool, working from the center out.
3. Being careful not to stretch the plug material, cut the plug flush with the outer tread.
Combination Repair/Plug Units
1. Pull the plug through the injury until the repair just reaches the liner. Stitch down thoroughly. 2.
Follow the repair material manufacturer's recommendations for further installation instructions.
2. Consult your repair material supplier for the proper stitching tool.
Safety Cage
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Procedures > Page 13437
Some run flat tires, such as the Goodyear Extended Mobility Tire (EMT) used on the Corvette, may
require more than 275 kPa (40 psi) to seat the bead. In such a case, a tire safety cage must be
used. Consult the tire manufacturer for its individual repair policy.
Final Inspection
1. After remounting and inflating the tire, check both beads, the repair and the valve with a water
and soap solution in order to detect leaks. 2. If the tire continues to lose air, the tire must be
demounted and reinspected. 3. Balance the tire and wheel assembly. Refer to Tire and Wheel
Assembly Balancing - OFF Vehicle.
For additional tire puncture repair information, contact:
Rubber Manufacturers Association (RMA)
Disclaimer
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Service Bulletins > Technical Service Bulletins for Tires: > 05-03-10-020C > Apr > 10 > Wheels/Tires - Use of Nitrogen Gas
in Tires
Tires: Technical Service Bulletins Wheels/Tires - Use of Nitrogen Gas in Tires
INFORMATION
Bulletin No.: 05-03-10-020C
Date: April 27, 2010
Subject: Use of Nitrogen Gas in Tires
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 05-03-10-020B (Section 03 - Suspension).
GM's Position on the Use of Nitrogen Gas in Tires
General Motors does not oppose the use of purified nitrogen as an inflation gas for tires. We expect
the theoretical benefits to be reduced in practical use due to the lack of an existing infrastructure to
continuously facilitate inflating tires with nearly pure nitrogen. Even occasional inflation with
compressed atmospheric air will negate many of the theoretical benefits. Given those theoretical
benefits, practical limitations, and the robust design of GM original equipment TPC tires, the
realized benefits to our customer of inflating their tires with purified nitrogen are expected to be
minimal.
The Promise of Nitrogen: Under Controlled Conditions
Recently, nitrogen gas (for use in inflating tires) has become available to the general consumer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. The following benefits under controlled conditions are attributed to nitrogen gas and its
unique properties:
- A reduction in the expected loss of Tire Pressure over time.
- A reduction in the variance of Tire Pressures with temperature changes due to reduction of water
vapor concentration.
- A reduction of long term rubber degradation due to a decrease in oxygen concentrations.
Important These are obtainable performance improvements when relatively pure nitrogen gas is
used to inflate tires under controlled conditions.
The Promise of Nitrogen: Real World Use
Nitrogen inflation can provide some benefit by reducing gas migration (pressure loss) at the
molecular level through the tire structure. NHTSA (National Highway Traffic Safety Administration)
has stated that the inflation pressure loss of tires can be up to 5% a month. Nitrogen molecules are
larger than oxygen molecules and, therefore, are less prone to "seeping" through the tire casing.
The actual obtainable benefits of nitrogen vary, based on the physical construction and the
materials used in the manufacturing of the tire being inflated.
Another potential benefit of nitrogen is the reduced oxidation of tire components. Research has
demonstrated that oxygen consumed in the oxidation process of the tire primarily comes from the
inflation media. Therefore, it is reasonable to assume that oxidation of tire components can be
reduced if the tire is inflated with pure nitrogen. However, only very small amounts of oxygen are
required to begin the normal oxidation process. Even slight contamination of the tire inflation gas
with compressed atmospheric air during normal inflation pressure maintenance, may negate the
benefits of using nitrogen.
GM Tire Quality, Technology and Focus of Importance
Since 1972, General Motors has designed tires under the TPC (Tire Performance Criteria)
specification system, which includes specific requirements that ensure robust tire performance
under normal usage. General Motors works with tire suppliers to design and manufacture original
equipment tires for GM vehicles. The GM TPC addresses required performance with respect to
both inflation pressure retention, and endurance properties for original equipment tires. The
inflation pressure retention requirements address availability of oxygen and oxidation concerns,
while endurance requirements ensure the mechanical structure of the tire has sufficient strength.
This combination has provided our customers with tires that maintain their structural integrity
throughout their useful treadlife under normal operating conditions.
Regardless of the inflation media for tires (atmospheric air or nitrogen), inflation pressure
maintenance of tires is critical for overall tire, and ultimately, vehicle performance. Maintaining the
correct inflation pressure allows the tire to perform as intended by the vehicle manufacturer in
many areas, including comfort, fuel economy, stopping distance, cornering, traction, treadwear,
and noise. Since the load carrying capability of a tire is related to inflation pressure, proper inflation
pressure maintenance is necessary for the tire to support the load imposed by the vehicle without
excessive structural
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in Tires > Page 13442
degradation.
Important Regardless of the inflation media for tires (atmospheric air or nitrogen), inflation pressure
maintenance of tires is critical for overall tire, and ultimately, vehicle performance.
Disclaimer
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Technical
Service Bulletins > Technical Service Bulletins for Tires: > 09-03-16-002A > Apr > 10 > Tire Pressure Monitor - TPM System
Message/Service Tips
Tires: Technical Service Bulletins Tire Pressure Monitor - TPM System Message/Service Tips
# 09-03-16-002A: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive
for Tire Pressure Monitor (TPM) System Message, Light and Customer Information - (Apr 27, 2010)
Subject: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire
Pressure Monitor (TPM) System Message, Light and Customer Information
Models: 2006-2011 Cars and Light Duty Trucks (Including Saturn and Saab)
2006-2010 HUMMER H2, H3
ATTENTION
The information found in this bulletin is to be used as a dealership service consultant procedures
for customers coming into the service lane with an illuminated "low tire light" or comments on a
check tire pressure/low tire pressure/add air to tire or service tire monitor system message.
Maintaining proper tire pressures is an Owner's Maintenance item and is not covered under
warranty.
This bulletin is being revised to add model years and update additional bulletin reference
information. Please discard Corporate Bulletin Number 09-03-16-002 (Section 03 -- Suspension).
Customer Concerns and Confusion with the Tire Pressure Monitoring (TPM) System
The following procedure should be used by dealership service consultants when a customer comes
into the service drive with a "low tire light" on or comments on a check tire pressure/low tire
pressure/add air to tire or service tire monitor system message. The service consultant should
perform the following steps:
Procedure
Turn the key to ON, without starting the engine.
^ If the low tire light comes on and stays on solid with a check tire pressure/low tire pressure/add
air to tire message (on vehicles equipped with DIC),
advise the customer:
- The system is working properly.
- Properly adjusting all tire air pressures to the recommended levels and driving the vehicle will turn
the light off (refer to the Tire and Loading Information label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
^ If the Tire Pressure Monitor (TPM) light blinks for one minute then stays on solid with a service
tire monitor system message (on vehicles equipped
with DIC):
- A TPM system problem exists. The vehicle should be written up accordingly and sent to your
service department for further DTC diagnosis and service.
- If dashes (--) are displayed in only one or two of the tire pressure readouts, it is likely caused by a
previous TPM system relearn that was performed incorrectly due to interference from another
vehicle's TPM system during the relearn process (refer to the Important statement later in this
bulletin regarding TPM relearn with a Tech 2(R)).
- If dashes (--) are displayed in all four of the tire pressure readouts, there is a system problem.
Follow the appropriate SI service procedures.
^ If a customer indicates the low tire light comes on for a few minutes when the vehicle is started,
then goes off after driving a while, advise the
customer:
- The system is working properly.
- Most likely, air pressure in one or more of the tires is low enough to turn the light on when tires
are cold. After driving for a while, tires will heat
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Message/Service Tips > Page 13447
up, allowing tire air pressure to increase above the threshold causing the light to go off. Properly
adjusting all tire air pressures to the recommended levels will correct this (Refer to the Tire and
Loading Information Label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
For more detailed information, refer to Corporate Bulletin Number 07-03-16-004C and TPMS
Training Course 13044.12T2.
Tire Pressure Light
At key on, without starting the vehicle:
Steady Solid Glowing TPM Indicator
If the TPM indicator appears as a steady glowing yellow lamp (as above), the system is functioning
properly and you should add air to the tires to correct this condition.
Blinking TPM Indicator
If the TPM indicator appears as a BLINKING yellow lamp for one minute and then stays on solid,
diagnostic service is needed.
The Effect of Outside Temperature on Tire Pressures
Important:
As a rule of thumb, tire pressure will change about 7kPa (1 psi) for every 6°C (10°F) decrease in
temperature - Tire pressure will drop when it gets colder outside, and rise when it gets warmer.
Under certain situations such as extreme outside temperature changes, the system may bring on a
solid light with a check tire pressure message. This should be considered normal and the system is
working properly. The light will turn off upon adding the proper amount of air to the tires (refer to the
Tire & Loading Information label in the driver's door opening). When properly adjusting tire air
pressure, the following steps are important to help optimize the system and prolong bringing a tire
pressure light on:
^ Use an accurate, high quality tire pressure gauge.
^ Never set the tire pressure below the specified placard value regardless of tire temperature or
ambient temperature.
^ Tire pressure should be set to the specified placard pressure at the lowest seasonal temperature
the vehicle will encounter during operation.
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Message/Service Tips > Page 13448
^ When adding proper tire air pressure, it is important to remember fluctuations in outside air
temperatures and tire temperatures effect tire air pressures.
^ After you have added the proper tire pressure, if the vehicle has a DIC (after the system has
updated), check to see if DIC displays are the same
readings as the tire pressure gauge used (adjust as necessary).
^ Only perform a TPM sensor re-learn after a tire rotation or system part replacements and use the
Tech 2(R) to initiate the relearn whenever possible to
avoid invalid sensor I.D. learns.
Important:
Always take outside temperature and tire temperature into consideration to properly set tire
pressures. Foe example, on colder days (20°F/-7°C), if setting tire pressure when the vehicle has
been indoors (60°F/16°C) or the tires are warm from being driven, it will be necessary to
compensate for the low outside temperature by adding 21-27 kPa (3-4 psi) more then the
placecard pressure. At some later time, when the vehicle has been parked outside for a while, the
tires will cool off and the pressures will drop back into the placecard range.
Important:
Recently, nitrogen gas (for use in inflating tires) has become available to the general customer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. Tires inflated with nitrogen gas may exhibit less of a pressure change in response to
outside temperature changes. Nitrogen gas inflation is compatible with GM TPM sensors. For
additional information, refer to Corporate Service Bulletin 05-03-10-020C.
Important:
All Models (Except the Pontiac Vibe): Do not perform a TPM relearn at PDI, the system has already
been set at the Assembly Plant. Do not perform a TPM relearn after adding air to the tires. The low
tire light is similar to the low fuel indicator and adding something (fuel, air) to the vehicle makes that
light turn back off again. Note that because of system behavior, some vehicles must be driven a
short distance before the sensors recognize the increase in pressure and turns the light off again.
Pontiac Vibe Only: Do not use the TPMS reset button to turn off the light. The system will update
and light will turn off when all tire pressures have been adjusted followed by short distance drive.
Important:
All models (except the Pontiac Vibe): Each tire monitor sensor is learned to a specific vehicle
corner. When performing a TPM relearn (only after a tire rotation or replacement of a TPM sensor
or Module), always use the Tech2(R) to initiate the J 46079 relearned process. Tech 2(R) - initiated
relearns lock out other vehicle TPM signals that may be broadcasting in the area. Only signals
initiated by the J 46079 tool will be accepted. This method avoids storing false TPM I.D.s and will
prevent customers from returning with dashes (--) displayed in tire pressure readouts and/or a
flashing tire pressure monitor (TPM) light. Checking the four TPM I.D.s with the Tech 2(R) prior to
and following relearn to verify they are the same can prevent invalid I.D. learns.
Pontiac Vibe Only: Tire Monitor Sensors are not learned to a specific vehicle corner. Do not
perform a TPM Reset after tire rotation. The TPMS Reset button must only be used during
pre-delivery inspection by the dealer to initialize the system (after all tire pressures have been
adjusted properly) or when a Tire Pressure Monitor System component is replaced. The J 46079
tool does not work on Vibe TPM sensors. A TPMS relearn on Vibe must be preformed with a Tech
2(R) to set the TPMS Module in learn mode. The TPMS sensor IDs are entered through the Tech
2(R). Refer to SI for further Vibe TPMS information.
Labor Operation and Repair Order/Warranty System Claim Required Documentation
Important:
The ONLY time labor operation E0726 or E0722 should be used is to diagnose for a system issue.
That should ONLY occur if, at key ON, without starting the engine, the Tire Pressure Monitor (TPM)
blinks for one minute and then stays on solid with a Service Tire Monitor System message (on
vehicles equipped with a DIC) If that occurs, a TPM system problem exists and the system will
have set a DTC. If one of these operastions is used, the following Repair Order and Warranty
System documentation are required:
^ Document the customer complaint on the Repair Order.
^ Document the TPMS DTC that has set on the Repair Order.
^ Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim
submission (refer to the Claims Processing Manual,
Section IV, Warranty claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim
may be rejected. If the Warranty Parts Center (WPC) generates a request, this repair order
documentation must be sent back.
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Customer TPMS Information
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Message/Service Tips > Page 13450
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Message/Service Tips > Page 13451
Frequently Asked Questions
Disclaimer
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Service Bulletins > Technical Service Bulletins for Tires: > 07-03-10-008B > Aug > 09 > Tires - Slight/Mild Edge Feathering
Information
Tires: Technical Service Bulletins Tires - Slight/Mild Edge Feathering Information
INFORMATION
Bulletin No.: 07-03-10-008B
Date: August 13, 2009
Subject: Information on Slight or Mild Tire Feathering and Recommended Practices (Normal Tire
Wear Condition)
Models:
2006-2010 GM Passenger Cars and Light Duty Trucks (including Saturn) 2006-2010 HUMMER H2,
H3 2006-2009 Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 07-03-10-008A (Section 03 - Suspension).
This bulletin provides information regarding the normal tire wear condition of slight or mild tire
feathering and recommended practices.
If a vehicle comes into a dealership with a concern of slight or mild feathering-type wear on the
tires, review with the customer their past tire rotation history. Tires should be rotated every 8,000 to
13,000 km (5,000 to 8,000 mi) for applicable vehicles with tires where a tire rotation is possible or
recommended. Refer to Corporate Bulletin Number 05-03-10-015B for information on tire rotation
for vehicles with different front/rear tire/wheel sizes.
SOME TIRE FEATHERING IS A NORMAL PART OF TIRE WEAR AND THROUGH PROPER
TIRE ROTATION AND INFLATION, THIS TIRE WEAR CAN BE MINIMIZED AND TIRE LIFE
MAXIMIZED.
If the customer has not rotated the tires within the last 8,000 to 13,000 km (5,000 to 8,000 mi), a
tire rotation in the modified X-pattern is necessary to clean-up the feathering, rather than placing
the vehicle on the alignment machine.
Disclaimer
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Service Bulletins > Technical Service Bulletins for Tires: > 00-00-90-002J > Jan > 09 > Tires - Correct Inflation Pressure
Information
Tires: Technical Service Bulletins Tires - Correct Inflation Pressure Information
INFORMATION
Bulletin No.: 00-00-90-002J
Date: January 28, 2009
Subject: Information on Proper Tire Pressure
Models: 2010 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2009 and
Prior HUMMER H2, H3, H3T 2005-2009 Saab 9-7X
Supercede:
This bulletin is being revised to add model years and clarify additional information. Please discard
Corporate Bulletin Number 00-00-90-002I (Section 00 - General Information).
Important:
^ Adjustment of tire pressure for a customer with a Low Tire Pressure Monitor (TPM) light on and
no codes in the TPM system is NOT a warrantable repair. Claims to simply adjust the tire pressure
will be rejected.
^ ALL tires (including the spare tire) MUST be set to the recommended inflation pressure stated on
the vehicle's tire placard (on driver's door) during the PRE-DELIVERY INSPECTION (PDI).
Recommended inflation pressure is not the pressure printed on tire sidewall.
^ Tires may be over-inflated from the assembly plant due to the mounting process.
^ Generally a 5.6°C (10°F) temperature change will result in (is equivalent to) a 6.9 kPa (1 psi) tire
pressure change.
^ 2008-2009 HUMMER H2 Only - The H2 comes standard with Light Truck "D" Load Range tires
with a recommended cold inflation pressure of 289 kPa (42 psi). These tires will alert the driver to a
low pressure situation at roughly 262 kPa (38 psi) due to a requirement in FMVSS 138 which
specifies a Minimum Activation Pressure for each tire type. This creates a relatively narrow window
of "usable" pressure values and the warning will be more sensitive to outside temperature changes
during the colder months. As with other cold temperature/tire pressure issues, there is nothing
wrong with the system itself. If a vehicle is brought in with this concern, check for tire damage and
set all tires to the Recommended Cold Inflation Pressure shown on the vehicle placard.
Accurate tire pressures ensure the safe handling and appropriate ride characteristics of GM cars
and trucks. It is critical that the tire pressure be adjusted to the specifications on the vehicle¡C■s
tire placard during PDI.
Ride, handling and road noise concerns may be caused by improperly adjusted tire pressure.
The first step in the diagnosis of these concerns is to verify that the tires are inflated to the correct
pressures. The recommended tire inflation pressure is listed on the vehicle¡C■s tire placard. The
tire placard is located on the driver¡C■s side front or rear door edge, center pillar, or the rear
compartment lid.
Tip
^ Generally a 5.6°C (10°F) temperature increase will result in (is equivalent to) a 6.9 kPa (1 psi) tire
pressure increase.
^ The definition of a "cold" tire is one that has been sitting for at least 3 hours, or driven no more
than 1.6 km (1 mi).
^ On extremely cold days, if the vehicle has been indoors, it may be necessary to compensate for
the low external temperature by adding additional air to the tire during PDI.
^ During cold weather, the Tire Pressure Monitor (TPM) indicator light (a yellow horseshoe with an
exclamation point) may illuminate. If this indicator turns off after the tires warm up (reach operating
temperature), the tire pressure should be reset to placard pressure at the cold temperature.
^ The TPM system will work correctly with nitrogen in tires.
^ The TPM system is compatible with the GM Vehicle Care Tire Sealant but may not be with other
commercially available sealants.
Important:
^ Do not use the tire pressure indicated on the tire itself as a guide.
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Information > Page 13460
^ Always inspect and adjust the pressure when the tires are cold.
^ Vehicles that have different pressures for the front and the rear need to be adjusted after tire
rotation.
Improper tire inflation may result in any or all of the following conditions:
^ Premature tire wear
^ Harsh ride
^ Excessive road noise
^ Poor handling
^ Reduced fuel economy
^ Low Tire Pressure Monitor (TPM) Light ON
^ Low Tire Pressure Message on the Drivers Information Center (DIC)
Disclaimer
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Technical
Service Bulletins > Technical Service Bulletins for Tires: > Page 13461
Tires: Technical Service Bulletins TPMS System - Service And Re-Learning Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Technical
Service Bulletins > Technical Service Bulletins for Tires: > Page 13462
Tires: Technical Service Bulletins Wheels/Tires - Use of Nitrogen Gas in Tires
INFORMATION
Bulletin No.: 05-03-10-020C
Date: April 27, 2010
Subject: Use of Nitrogen Gas in Tires
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 05-03-10-020B (Section 03 - Suspension).
GM's Position on the Use of Nitrogen Gas in Tires
General Motors does not oppose the use of purified nitrogen as an inflation gas for tires. We expect
the theoretical benefits to be reduced in practical use due to the lack of an existing infrastructure to
continuously facilitate inflating tires with nearly pure nitrogen. Even occasional inflation with
compressed atmospheric air will negate many of the theoretical benefits. Given those theoretical
benefits, practical limitations, and the robust design of GM original equipment TPC tires, the
realized benefits to our customer of inflating their tires with purified nitrogen are expected to be
minimal.
The Promise of Nitrogen: Under Controlled Conditions
Recently, nitrogen gas (for use in inflating tires) has become available to the general consumer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. The following benefits under controlled conditions are attributed to nitrogen gas and its
unique properties:
- A reduction in the expected loss of Tire Pressure over time.
- A reduction in the variance of Tire Pressures with temperature changes due to reduction of water
vapor concentration.
- A reduction of long term rubber degradation due to a decrease in oxygen concentrations.
Important These are obtainable performance improvements when relatively pure nitrogen gas is
used to inflate tires under controlled conditions.
The Promise of Nitrogen: Real World Use
Nitrogen inflation can provide some benefit by reducing gas migration (pressure loss) at the
molecular level through the tire structure. NHTSA (National Highway Traffic Safety Administration)
has stated that the inflation pressure loss of tires can be up to 5% a month. Nitrogen molecules are
larger than oxygen molecules and, therefore, are less prone to "seeping" through the tire casing.
The actual obtainable benefits of nitrogen vary, based on the physical construction and the
materials used in the manufacturing of the tire being inflated.
Another potential benefit of nitrogen is the reduced oxidation of tire components. Research has
demonstrated that oxygen consumed in the oxidation process of the tire primarily comes from the
inflation media. Therefore, it is reasonable to assume that oxidation of tire components can be
reduced if the tire is inflated with pure nitrogen. However, only very small amounts of oxygen are
required to begin the normal oxidation process. Even slight contamination of the tire inflation gas
with compressed atmospheric air during normal inflation pressure maintenance, may negate the
benefits of using nitrogen.
GM Tire Quality, Technology and Focus of Importance
Since 1972, General Motors has designed tires under the TPC (Tire Performance Criteria)
specification system, which includes specific requirements that ensure robust tire performance
under normal usage. General Motors works with tire suppliers to design and manufacture original
equipment tires for GM vehicles. The GM TPC addresses required performance with respect to
both inflation pressure retention, and endurance properties for original equipment tires. The
inflation pressure retention requirements address availability of oxygen and oxidation concerns,
while endurance requirements ensure the mechanical structure of the tire has sufficient strength.
This combination has provided our customers with tires that maintain their structural integrity
throughout their useful treadlife under normal operating conditions.
Regardless of the inflation media for tires (atmospheric air or nitrogen), inflation pressure
maintenance of tires is critical for overall tire, and ultimately, vehicle performance. Maintaining the
correct inflation pressure allows the tire to perform as intended by the vehicle manufacturer in
many areas, including comfort, fuel economy, stopping distance, cornering, traction, treadwear,
and noise. Since the load carrying capability of a tire is related to inflation pressure, proper inflation
pressure maintenance is necessary for the tire to support the load imposed by the vehicle without
excessive structural
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Technical
Service Bulletins > Technical Service Bulletins for Tires: > Page 13463
degradation.
Important Regardless of the inflation media for tires (atmospheric air or nitrogen), inflation pressure
maintenance of tires is critical for overall tire, and ultimately, vehicle performance.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Technical
Service Bulletins > Technical Service Bulletins for Tires: > Page 13464
Tires: Technical Service Bulletins Tires/Wheels - Tire Puncture Repair Procedures
INFORMATION
Bulletin No.: 04-03-10-001F
Date: April 27, 2010
Subject: Tire Puncture Repair Procedures For All Cars and Light Duty Trucks
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2010 and Prior
HUMMER H2, H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 04-03-10-001E (Section 03 - Suspension).
This bulletin covers puncture repair procedures for passenger car and light duty truck radial tires in
the tread area only. The tire manufacturer must be contacted for its individual repair policy and
whether or not the speed rating is retained after repair.
Caution
- Tire changing can be dangerous and should be done by trained professionals using proper tools
and procedures. Always read and understand any manufacturer's warnings contained in their
customers literature or molded into the tire sidewall.
- Serious eye and ear injury may result from not wearing adequate eye and ear protection while
repairing tires.
- NEVER inflate beyond 275 kPa (40 pounds) pressure to seat beads.
Some run flat tires, such as the Goodyear Extended Mobility Tire (EMT) used on the Corvette, may
require more than 275 kPa (40 psi) to seat the bead. In such a case, a tire safety cage must be
used. Consult the tire manufacturer for its individual repair policy.
- NEVER stand, lean or reach over the assembly during inflation.
Repairable area on a radial tire.
Important
- NEVER repair tires worn to the tread indicators 1.59 mm (2/32") remaining depth).
- NEVER repair tires with a tread puncture larger than 6.35 mm (1/4").
- NEVER substitute an inner tube for a permissible or non-permissible repair.
- NEVER perform an outside-in tire repair (plug only, on the wheel).
- Every tire must be removed from the wheel for proper inspection and repair.
- Regardless of the type of repair used, the repair must seal the inner liner and fill the injury.
- Consult with repair material supplier/manufacturer for repair unit application procedures and
repair tools/repair material recommendations.
Three basic steps for tire puncture repair:
1. Remove the tire from the wheel for inspection and repair.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Technical
Service Bulletins > Technical Service Bulletins for Tires: > Page 13465
2. Fill the injury (puncture) to keep moisture out. 3. Seal the inner liner with a repair unit to prevent
air loss.
External Inspection
1. Prior to demounting, inspect the tire surface, the valve and the wheel for the source of the leak
by using a water and soap solution. Mark the
injured area and totally deflate the tire by removing the valve core.
2. Demount the tire from the wheel and place the tire on a well-lighted spreader.
Internal Inspection
1. Spread the beads and mark the puncture with a tire crayon. 2. Inspect the inner tire for any signs
of internal damage. 3. Remove the puncturing object, noting the direction of the penetration. 4.
Probe the injury with a blunt awl in order to determine the extent and direction of the injury. 5.
Remove any loose foreign material from the injury. 6. Punctures exceeding 6.35 mm (1/4") should
not be repaired.
Cleaning
1. Clean the area around the puncture thoroughly with a proper liner cleaner, clean cloth and a
scraper. This step serves to remove dirt and mold
lubricants to insure proper adhesion and non-contamination of the buffing tool.
2. Refer to information on the product or manufacturer's Material Safety Data Sheet and follow
guidelines for handling and disposal.
Clean the Injury Channel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Technical
Service Bulletins > Technical Service Bulletins for Tires: > Page 13466
1. Use a proper hand reamer, carbide cutter or drill bit to ream the puncture channel from the inside
of the tire in order to clean the injury. 2. Remove steel wires protruding above the liner surface to
prevent damage to the repair unit. 3. Consult your repair material supplier for recommended
reaming tool(s).
Fill the Injury
1. It is necessary to fill the injury channel to provide back up for the repair unit and to prevent
moisture from entering the tire fabric and steel wires. 2. (For combination repair/plug units skip this
step.) Cement the injured channel and fill the injury from the inside of the tire with the repair plug
per
repair material manufacturer's recommendations. Without stretching the plug, cut the plug off just
above the inside tire surface.
3. Consult your repair material supplier for proper repair material selection.
Repair Unit Selection
Important Do not install the repair unit in this step.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Technical
Service Bulletins > Technical Service Bulletins for Tires: > Page 13467
1. Center the repair unit over the injury as a reference and outline an area larger than the unit so
that buffing will not remove the crayon marks. 2. Remove the repair unit. 3. DO NOT overlap
previous or multiple repair units. 4. Consult your repair material supplier for proper repair unit
selection.
Buffing
1. To prevent contamination and preserve the outline, buff within the marked area thoroughly and
evenly with a low speed buffing tool using a fine
wire brush or gritted rasp.
2. Buff to a smooth velvet surface (RMA #1 or #2 buffed texture). 3. Use caution not to gouge the
inner liner or expose casing fabric. 4. Remove any buffing dust with a vacuum cleaner. 5. Consult
your repair material supplier for a proper buffing tool.
Cementing
Apply chemical cement according to the repair material manufacturer's procedures.
Repair Unit Application
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Technical
Service Bulletins > Technical Service Bulletins for Tires: > Page 13468
1. The tire must be in the relaxed position when the repair unit is installed (Do not spread the beads
excessively).
Two-Piece Plug and Repair Units
1. If applicable, install the repair unit so that the alignment is correct. 2. Center the repair unit over
the injury and stitch down thoroughly with the stitching tool, working from the center out.
3. Being careful not to stretch the plug material, cut the plug flush with the outer tread.
Combination Repair/Plug Units
1. Pull the plug through the injury until the repair just reaches the liner. Stitch down thoroughly. 2.
Follow the repair material manufacturer's recommendations for further installation instructions.
2. Consult your repair material supplier for the proper stitching tool.
Safety Cage
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Technical
Service Bulletins > Technical Service Bulletins for Tires: > Page 13469
Some run flat tires, such as the Goodyear Extended Mobility Tire (EMT) used on the Corvette, may
require more than 275 kPa (40 psi) to seat the bead. In such a case, a tire safety cage must be
used. Consult the tire manufacturer for its individual repair policy.
Final Inspection
1. After remounting and inflating the tire, check both beads, the repair and the valve with a water
and soap solution in order to detect leaks. 2. If the tire continues to lose air, the tire must be
demounted and reinspected. 3. Balance the tire and wheel assembly. Refer to Tire and Wheel
Assembly Balancing - OFF Vehicle.
For additional tire puncture repair information, contact:
Rubber Manufacturers Association (RMA)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information >
Description and Operation > Tread Wear Indicators Description
Tires: Description and Operation Tread Wear Indicators Description
Tread Wear Indicators Description
Tread Wear Indicators Description
The original equipment tires have tread wear indicators that show when you should replace the
tires.
The location of these indicators are at 72 degree intervals around the outer diameter of the tire.
The indicators appear as a 6 mm (0.25 in) wide band when the tire tread depth becomes 1.6 mm
(2/32 in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information >
Description and Operation > Tread Wear Indicators Description > Page 13472
Tires: Description and Operation Tire Inflation Description
Tire Inflation Description
When you inflate the tires to the recommended inflation pressures, the factory-installed wheels and
tires are designed in order to handle loads to the tire's rated load capacity. Incorrect tire pressures,
or under-inflated tires, can cause the following conditions:
* Vehicle handling concerns
* Poor fuel economy
* Shortened tire life
* Tire overloading
Inspect the tire pressure when the following conditions apply:
* The vehicle has been sitting at least 3 hours.
* The vehicle has not been driven for more than 1.6 km (1 mi).
* The tires are cool.
Inspect the tires monthly or before any extended trip. Adjust the tire pressure to the specifications
on the tire label. Install the valve caps or the extensions on the valves. The caps or the extensions
keep out dust and water.
The kilopascal (kPa) is the metric term for pressure. The tire pressure may be printed in both
kilopascal (kPa) and psi. One psi equals 6.9 kPa.
Inflation Pressure Conversation (Kilopascals To PSI)
Tires with a higher than recommended pressure can cause the following conditions:
* A hard ride
* Tire bruising
* Rapid tread wear at the center of the tire
Tires with a lower than recommended pressure can cause the following conditions:
* A tire squeal on turns
* Hard steering
* Rapid wear and uneven wear on the edge of the tread
* Tire rim bruises and tire rim rupture
* Tire cord breakage
* High tire temperatures
* Reduced vehicle handling
* High fuel consumption
* Soft riding
Unequal pressure on the same axle can cause the following conditions:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information >
Description and Operation > Tread Wear Indicators Description > Page 13473
* Uneven braking
* Steering lead
* Reduced vehicle handling
Refer to the Tire Placard for specific tire and wheel applications and tire pressures.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information >
Description and Operation > Tread Wear Indicators Description > Page 13474
Tires: Description and Operation All Seasons Tires Description
All Seasons Tires Description
All Seasons Tires Description
Most Saturn vehicles are equipped with steel belted all-season radial tires as standard equipment.
These tires qualify as snow tires, with a higher than average rating for snow traction than the
non-all season radial tires previously used. Other performance areas, such as wet traction, rolling
resistance, tread life, and air retention, are also improved. This is done by improvements in both
tread design and tread compounds. These tires are identified by an M + S molded in the tire side
wall after the tire size. The suffix MS is also molded in the tire side wall after the TPC specification
number.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information >
Description and Operation > Tread Wear Indicators Description > Page 13475
Tires: Description and Operation P-Metric Sized Tires Description
P-Metric Sized Tires Description
P-Metric Sized Tires Description
Most P-metric tire sizes do not have exact corresponding alphanumeric tire sizes. Replacement
tires should be of the same tire performance criteria TPC specification number including the same
size, the same load range, and the same construction as those originally installed on the vehicle.
Consult a tire dealer if you must replace the P-metric tire with other sizes. Tire companies can best
recommend the closest match of alphanumeric to P-metric sizes within their own tire lines. The
above illustration may not correspond with your vehicle, but is meant as an example.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Service
and Repair > Procedures
Tires: Procedures
Tire Repair
Tire Repair
Caution:
* Tire changing can be dangerous and should be done by trained professionals using proper tools
and procedures. Always read and understand any manufacturer's warnings contained in their
customers literature or molded into the tire sidewall.
* Serious eye and ear injury may result from not wearing adequate eye and ear protection while
repairing tires.
* NEVER inflate beyond 275 kPa (40 pounds) pressure to seat beads.
* NEVER stand, lean or reach over the assembly during inflation.
Repairable area on a radial tire.
Important:
* NEVER repair tires worn to the tread indicators 1.59 mm (2/32 in) remaining depth.
* NEVER repair tires with a tread puncture larger than 6.35 mm (1/4 in).
* NEVER substitute an inner tube for a permissible or non-permissible repair.
* NEVER perform an outside-in tire repair (plug only, on the wheel).
*
Every tire must be removed from the wheel for proper inspection and repair.
* Regardless of the type of repair used, the repair must seal the inner liner and fill the injury.
* Consult with repair material supplier/manufacturer for repair unit application procedures and
repair tools/repair material recommendations.
Three basic steps for tire puncture repair:
1. Remove the tire from the wheel for inspection and repair. 2. Fill the injury (puncture) to keep
moisture out.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Service
and Repair > Procedures > Page 13478
3. Seal the inner liner with a repair unit to prevent air loss.
External Inspection
1. Prior to demounting, inspect the tire surface, the valve and the wheel for the source of the leak
by using a water and soap solution. Mark the
injured area and totally deflate the tire by removing the valve core.
2. Demount the tire from the wheel and place the tire on a well-lighted spreader.
Internal Inspection
1. Spread the beads and mark the puncture with a tire crayon. 2. Inspect the inner tire for any signs
of internal damage. 3. Remove the puncturing object, noting the direction of the penetration. 4.
Probe the injury with a blunt awl in order to determine the extent and direction of the injury. 5.
Remove any loose foreign material from the injury. 6. Punctures exceeding 6.35 mm (1/4 in) should
not be repaired.
Cleaning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Service
and Repair > Procedures > Page 13479
1. Clean the area around the puncture thoroughly with a proper liner cleaner, clean cloth and a
scraper. This step serves to remove dirt and mold
lubricants to insure proper adhesion and non-contamination of the buffing tool.
2. Refer to information on the product or manufacturer's Material Safety Data Sheet and follow
guidelines for handling and disposal.
Clean the Injury Channel
1. Use a proper hand reamer, carbide cutter or drill bit to ream the puncture channel from the inside
of the tire in order to clean the injury. 2. Remove steel wires protruding above the liner surface to
prevent damage to the repair unit. 3. Consult your repair material supplier for recommended
reaming tool(s).
Fill the Injury
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Service
and Repair > Procedures > Page 13480
1. It is necessary to fill the injury channel to provide back up for the repair unit and to prevent
moisture from entering the tire fabric and steel wires. 2. For combination repair/plug units skip this
step. Cement the injured channel and fill the injury from the inside of the tire with the repair plug per
repair material manufacturer's recommendations. Without stretching the plug, cut the plug off just
above the inside tire surface.
3. Consult your repair material supplier for proper repair material selection.
Repair Unit Selection
Important: Do not install the repair unit in this step.
1. Center the repair unit over the injury as a reference and outline an area larger than the unit so
that buffing will not remove the crayon marks. 2. Remove the repair unit. 3. DO NOT overlap
previous or multiple repair units. 4. Consult your repair material supplier for proper repair unit
selection.
Buffing
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Service
and Repair > Procedures > Page 13481
1. To prevent contamination and preserve the outline, buff within the marked area thoroughly and
evenly with a low speed buffing tool using a fine
wire brush or gritted rasp.
2. Buff to a smooth velvet surface (RMA #1 or #2 buffed texture). 3. Use caution not to gouge the
inner liner or expose casing fabric. 4. Remove any buffing dust with a vacuum cleaner. 5. Consult
your repair material supplier for a proper buffing tool.
Cementing
Apply chemical cement according to the repair material manufacturer's procedures.
Repair Unit Application
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Service
and Repair > Procedures > Page 13482
The tire must be in the relaxed position when the repair unit is installed. Do not spread the beads
excessively.
Two-Piece Plug and Repair Units
1. If applicable, install the repair unit so that the alignment is correct. 2. Center the repair unit over
the injury and stitch down thoroughly with the stitching tool, working from the center out.
3. Being careful not to stretch the plug material, cut the plug flush with the outer tread.
Combination Repair/Plug Units
1. Pull the plug through the injury until the repair just reaches the liner. Stitch down thoroughly. 2.
Follow the repair material manufacturer's recommendations for further installation instructions.
Consult your repair material supplier for the proper stitching tool.
Safety Cage
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Service
and Repair > Procedures > Page 13483
Some run flat tires, such as the Goodyear Extended Mobility Tire (EMT) used on the Corvette, may
require more than 275 kPa (40 psi) to seat the bead. In such a case, a tire safety cage must be
used. Consult the tire manufacturer for its individual repair policy.
Final Inspection
1. After remounting and inflating the tire, check both beads, the repair and the valve with a water
and soap solution in order to detect leaks. 2. If the tire continues to lose air, the tire must be
demounted and reinspected. 3. Balance the tire and wheel assembly. Refer to Tire and Wheel
Assembly Balancing - Off Vehicle.
Tire Rotation
Tire Rotation
Rotate the tires and wheels at frequent intervals to equalize wear. Refer to Maintenance Schedule
(North American Emissions). In addition to scheduled rotation, rotate the tire and wheel whenever
uneven tire wear is noticed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Service
and Repair > Procedures > Page 13484
Radial tires tend to wear faster in the shoulder area, particularly in front positions. Radial tires in
non-drive locations may develop an irregular wear pattern that may increase tire noise. This makes
regular rotation especially necessary.
Refer to Tire and Wheel Removal and Installation.
Always use a 4-wheel rotation. After rotation, check the wheel nuts for specified torque. Then, set
the tire pressure.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Tires > Component Information > Service
and Repair > Procedures > Page 13485
Tires: Removal and Replacement
Tire Mounting and Dismounting
Notice: Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons
alone in order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could
result.
Notice: Do not scratch or damage the clear coating on aluminum wheels with the tire changing
equipment. Scratching the clear coating could cause the aluminum wheel to corrode and the clear
coating to peel from the wheel.
Notice: Damage to either the tire bead or the wheel mounting holes can result from the use of
improper wheel attachment or tire mounting procedures. It takes up to 70 seconds for all of the air
to completely exhaust from a large tire. Failure to follow the proper procedures could cause the tire
changer to put enough force on the tire to bend the wheel at the mounting surface. Such damage
may result in vibration and/or shimmy, and under severe usage lead to wheel cracking.
1. Deflate the tire completely.
Important: Rim-clamp European-type tire changers are recommended.
2. Use the tire changer in order to remove the tire from the wheel. 3. Use a wire brush or coarse
steel wool in order to remove any rubber, light rust or corrosion from the wheel bead seats.
Notice: When mounting the tires, use an approved tire mounting lubricant. DO NOT use silicon or
corrosive base compounds to lubricate the tire bead and the wheel rim. A silicon base compound
can cause the tire to slip on the rim. A corrosive type compound can cause tire or rim deterioration.
4. Apply an approved Lubricant to the tire bead and the wheel rim. 5. Use the tire changer in order
to install the tire to the wheel.
Caution: To avoid serious personal injury, do not stand over tire when inflating. The bead may
break when the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when
inflating any tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads,
deflate, relubricate the beads and reinflate. Overinflation may cause the bead to break and cause
serious personal injury.
6. Inflate the tire to the proper air pressure. 7. Ensure that the locating rings are visible on both
sides of the tire in order to verify that the tire bead is fully seated on the wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > Customer Interest: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial Force Variation
(RFV)
Wheels: Customer Interest Wheels/Tires - Tire Radial Force Variation (RFV)
INFORMATION
Bulletin No.: 00-03-10-006F
Date: May 04, 2010
Subject: Information on Tire Radial Force Variation (RFV)
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2, H3 2009
and Prior Saab 9-7X 2000-2005 Saturn L Series 2003-2007 Saturn ION
Supercede: This bulletin is being revised to considerably expand the available information on
Radial Force Variation (RFV) and should be reviewed in whole. Please discard Corporate Bulletin
Number 00-03-10-006E (Section 03 - Suspension).
Important
- Before measuring tires on equipment such as the Hunter GSP9700, the vehicle MUST be driven
a minimum of 16 km (10 mi) to ensure removal of any flat-spotting. Refer to Corporate Bulletin
Number 03-03-10-007E - Tire/Wheel Characteristics of GM Original Equipment Tires.
- Equipment such as the Hunter GSP9700 MUST be calibrated prior to measuring tire/wheel
assemblies for each vehicle.
The purpose of this bulletin is to provide guidance to GM dealers when using tire force variation
measurement equipment, such as the Hunter GSP9700. This type of equipment can be a valuable
tool in diagnosing vehicle ride concerns. The most common ride concern involving tire radial force
variation is highway speed shake on smooth roads.
Tire related smooth road highway speed shake can be caused by three conditions: imbalance, out
of round and tire force variation. These three conditions are not necessarily related. All three
conditions must be addressed.
Imbalance is normally addressed first, because it is the simpler of the three to correct. Off-vehicle,
two plane dynamic wheel balancers are readily available and can accurately correct any
imbalance. Balancer calibration and maintenance, proper attachment of the wheel to the balancer,
and proper balance weights, are all factors required for a quality balance. However, a perfectly
balanced tire/wheel assembly can still be "oval shaped" and cause a vibration.
Before balancing, perform the following procedures.
Tire and Wheel Diagnosis
1. Set the tire pressure to the placard values. 2. With the vehicle raised, ensure the wheels are
centered on the hub by loosening all wheel nuts and hand-tightening all nuts first by hand while
shaking the wheel, then torque to specifications using a torque wrench, NOT a torque stick.
3. Visually inspect the tires and the wheels. Inspect for evidence of the following conditions and
correct as necessary:
- Missing balance weights
- Bent rim flange
- Irregular tire wear
- Incomplete bead seating
- Tire irregularities (including pressure settings)
- Mud/ice build-up in wheel
- Stones in the tire tread
- Remove any aftermarket wheels and/or tires and restore vehicle to original condition prior to
diagnosing a smooth road shake condition.
4. Road test the vehicle using the Electronic Vibration Analyzer (EVA) essential tool. Drive for a
sufficient distance on a known, smooth road
surface to duplicate the condition. Determine if the vehicle is sensitive to brake apply. If the brakes
are applied lightly and the pulsation felt in the steering wheel increases, refer to the Brakes section
of the service manual that deals with brake-induced pulsation. If you can start to hear the vibration
as a low boom noise (in addition to feeling it), but cannot see it, the vehicle likely has a first order
(one pulse per propshaft revolution) driveline vibration. Driveline first order vibrations are high
enough in frequency that most humans can start to hear them at highway speeds, but are too high
to be able to be easily seen. These issues can be caused by driveline imbalance or misalignment.
If the vehicle exhibits this low boom and the booming pulses in-and-out on a regular basis (like a
throbbing), chances are good that the vehicle could have driveline vibration. This type
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > Customer Interest: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial Force Variation
(RFV) > Page 13494
of vibration is normally felt more in the "seat of the pants" than the steering wheel.
5. Next, record the Hertz (Hz) reading as displayed by the EVA onto the tire data worksheet found
at the end of this bulletin. This should be done
after a tire break-in period of at least 16 km (10 mi) at 72 km/h (45 mph) or greater, in order to
eliminate any possible tire flat-spotting. This reading confirms what the vehicle vibration frequency
is prior to vehicle service and documents the amount of improvement occurring as the result of the
various steps taken to repair. Completing the Steering Wheel Shake Worksheet below is required.
A copy of the completed worksheet must be saved with the R.O. and a copy included with any
parts returned to the Warranty Parts Center for analysis. A reading of 35 to 50 Hz typically
indicates a first order propshaft vibration. If this is the situation, refer to Corporate Bulletin Number
08-07-30-044D. Generally, a reading between 10 and 20 Hz indicates a tire/wheel vibration and if
this is the reading obtained, continue using this bulletin. If the tire 1st order vibration goes away
and stays away during this evaluation, the cause is likely tire flat-spotting. Tire flat-spotting vibration
may come and go at any speed over 72 km/h (45 mph) during the first 10 minutes of operation, if
vibration continues after 10 minutes of driving at speeds greater than 72 km/h (45 mph), tire
flat-spotting can be ruled out as the cause for vibration.
6. If flat-spotting is the cause, provide the explanation that this has occurred due to the vehicle
being parked for long periods of time and that the
nature of the tire is to take a set. Refer to Corporate Bulletin Number 03-03-10-007E: Information
on Tire/Wheel Characteristics (Vibration, Balance, Shake, Flat Spotting) of GM Original Equipment
Tires.
7. If the road test indicates a shake/vibration exists, check the imbalance of each tire/wheel
assembly on a known, calibrated, off-car dynamic
balancer.Make sure the mounting surface of the wheel and the surface of the balancer are
absolutely clean and free of debris. Be sure to chose the proper cone/collet for the wheel, and
always use the pilot bore for centering. Never center the wheel using the hub-cap bore since it is
not a precision machined surface. If any assembly calls for more than 1/4 ounce on either rim
flange, remove all balance weights and rebalance to as close to zero as possible. If you can see
the vibration (along with feeling it) in the steering wheel (driving straight without your hands on the
wheel), it is very likely to be a tire/wheel first order (one pulse per revolution) disturbance. First
order disturbances can be caused by imbalance as well as non-uniformities in tires, wheels or
hubs. This first order frequency is too low for a human to hear, but if the amplitude is high enough,
it can be seen.
If a vibration or shake still exists after balancing, any out of round conditions, of the wheel, and
force variation conditions of the tire, must be addressed. Equipment such as the Hunter GSP9700
can address both (it is also a wheel balancer).
Tire radial force vibration (RFV) can be defined as the amount of stiffness variation the tire will
produce in one revolution under a constant load. Radial force variation is what the vehicle feels
because the load (weight) of the vehicle is always on the tires. Although free runout of tires (not
under load) is not always a good indicator of a smooth ride, it is critical that total tire/wheel
assembly runout be within specification.
Equipment such as the Hunter GSP9700 loads the tire, similar to on the vehicle, and measures
radial force variation of the tire/wheel assembly. Note that the wheel is affecting the tire's RFV
measurement at this point. To isolate the wheel, its runout must be measured. This can be easily
done on the Hunter, without the need to set up dial indicators. If the wheel meets the runout
specification, the tire's RFV can then be addressed.
After measuring the tire/wheel assembly under load, and the wheel alone, the machine then
calculates (predicts) the radial force variation of the tire. However, because this is a prediction that
can include mounting inaccuracies, and the load wheel is much smaller in diameter than used in
tire production, this type of service equipment should NOT be used to audit new tires. Rather, it
should be used as a service diagnostic tool to minimize radial force variation of the tire/wheel
assembly.
Equipment such as the Hunter GSP9700 does an excellent job of measuring wheel runout, and of
finding the low point of the wheel (for runout) and the high point of the tire (for radial force
variation). This allows the tire to be matched mounted to the wheel for lowest tire/wheel assembly
force variation.
The machine will simplify this process into easy steps. The following assembly radial force variation
numbers should be used as a guide:
When measuring RFV and match mounting tires perform the following steps.
Measuring Wheel Runout and Assembly Radial Force Variation
Important The completed worksheet at the end of this bulletin must be attached to the hard copy of
the repair order.
- Measure radial force variation and radial runout.
- If a road force/balancing machine is used, record the radial force variation (RFV) on the
worksheet at the end of this bulletin. It may be of benefit to have the lowest RFV assembly to the
front left corner. If the machine is not available and the EVA data suggests there is an issue, swap
the tire and wheel assemblies from the front to the back. Re-check on the EVA and if the problem
still exists, test another vehicle to find tires that do not exhibit the same frequency and swap those
tires onto the subject vehicle.
- If a runout/balancing machine is used, record the radial runout of the tire/wheel assemblies on the
worksheet at the end of this bulletin. If one or more of the tire/wheel assemblies are more than.040
in (1.02 mm), match mount the tire to the wheel to get below.040 in (1.02 mm). For sensitive
customers, readings of 0.030 inch (0.76 mm) or less are preferable, it may also be of benefit to
have the lowest runout assembly to the front left corner. If the machine is not available and the
EVA data suggests there is an issue, swap the tire and wheel assemblies from the front to the
back. Re-check on the EVA and if the problem still exists, test another vehicle to find tires that do
not exhibit the same frequency and swap those tires
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > Customer Interest: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial Force Variation
(RFV) > Page 13495
onto the subject vehicle.
- After match mounting, the tire/wheel assembly must be rebalanced.
If match mounting tires to in-spec wheels produces assembly values higher than these, tire
replacement may be necessary. Replacing tires at lower values will probably mean good tires are
being condemned. Because tires can sometimes become temporarily flat-spotted, which will affect
force variation, it is important that the vehicle be driven at least 16 km (10 mi) prior to measuring.
Tire pressure must also be adjusted to the usage pressure on the vehicle's tire placard prior to
measuring.
Most GM vehicles will tolerate radial force variation up to these levels. However, some vehicles are
more sensitive, and may require lower levels. Also, there are other tire parameters that equipment
such as the Hunter GSP9700 cannot measure that may be a factor. In such cases, TAC should be
contacted for further instructions.
Important
- When mounting a GM wheel to a wheel balancer/force variation machine, always use the wheel's
center pilot hole. This is the primary centering mechanism on all GM wheels; the bolt holes are
secondary. Usually a back cone method to the machine should be used. For added accuracy and
repeatability, a flange plate should be used to clamp the wheel onto the cone and machine. This
system is offered by all balancer manufacturers in GM's dealer program.
- Any type of service equipment that removes tread rubber by grinding, buffing or truing is NOT
recommended, and may void the tire warranty. However, tires may have been ground by the tire
company as part of their tire manufacturing process. This is a legitimate procedure.
Steering Wheel Shake Worksheet
When diagnosing vibration concerns, use the following worksheet in conjunction with the
appropriate Vibration Analysis-Road testing procedure in the Vibration Correction sub-section in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > Customer Interest: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial Force Variation
(RFV) > Page 13496
Refer to the appropriate section of SI for specifications and repair procedures that are related to the
vibration concern.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > Customer Interest: > 05-03-10-003F > Apr > 10 > Tires/Wheels - Low Tire/Leaking Cast
Aluminum Wheels
Wheels: Customer Interest Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
TECHNICAL
Bulletin No.: 05-03-10-003F
Date: April 27, 2010
Subject: Low Tire Pressure, Leaking Cast Aluminum Wheels (Repair with Adhesive Sealant)
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks (Including Saturn) 2010 and Prior
HUMMER H2, H3 2009 and Prior Saab 9-7X with Cast Aluminum Wheels
Supercede: This bulletin is being revised to update the model years and the bulletin reference
information. Please discard Corporate Bulletin Number 05-03-10-003E (Section 03 - Suspension).
Condition
Some customers may comment on a low tire pressure condition.
Diagnosis of the low tire pressure condition indicates an air leak through the cast aluminum wheel.
Cause
Porosity in the cast aluminum wheel may be the cause.
Notice
This bulletin specifically addresses issues related to the wheel casting that may result in an air
leak. For issues related to corrosion of the wheel in service, please refer to Corporate Bulletin
Number 08-03-10-006C - Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light
Illuminated, Aluminum Wheel Bead Seat Corrosion (Clean and Resurface Wheel Bead Seat).
Correction
1. Remove the tire and wheel assembly from the vehicle. Refer to the appropriate service
procedure in SI. 2. Locate the leaking area by inflating the tire to 276 kPa (40 psi) and dipping the
tire/wheel assembly in a water bath, or use a spray bottle with soap
and water to locate the specific leak location.
Important
- If the porosity leak is located in the bead area of the aluminum rim (where the tire meets the rim),
the wheel should be replaced.
- If two or more leaks are located on one wheel, the wheel should be replaced.
3. If air bubbles are observed, mark the location.
- If the leak location is on the tire/rubber area, refer to Corporate Bulletin Number 04-03-10-001F Tire Puncture Repair Procedures for All Cars and Light Duty Trucks.
- If the leak is located on the aluminum wheel area, continue with the next step.
4. Inscribe a mark on the tire at the valve stem in order to indicate the orientation of the tire to the
wheel. 5. Dismount the tire from the wheel. Refer to Tire Mounting and Dismounting. 6. Remove
the tire pressure sensor. Refer to Tire Pressure Sensor removal procedure in SI. 7. Scuff the
INSIDE rim surface at the leak area with #80 grit paper and clean the area with general purpose
cleaner, such as 3M(R) General Purpose
Adhesive Cleaner, P/N 08984, or equivalent.
8. Apply a 3 mm (0.12 in) thick layer of Silicone - Adhesive/Sealant, P/N 12378478 (in Canada, use
88900041), or equivalent, to the leak area. 9. Allow for the adhesive/sealant to dry.
Notice Caution must be used when mounting the tire so as not to damage the sealer. Damaging
the repair area may result in an air leak.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > Customer Interest: > 05-03-10-003F > Apr > 10 > Tires/Wheels - Low Tire/Leaking Cast
Aluminum Wheels > Page 13501
10. Align the inscribed mark on the tire with the valve stem on the wheel. 11. Reinstall the Tire
Pressure Sensor. Refer to Tire Pressure Sensor installation procedure in SI. 12. Mount the tire on
the wheel. Refer to Tire Mounting and Dismounting. 13. Pressurize the tire to 276 kPa (40 psi) and
inspect for leaks. 14. Adjust tire pressure to meet the placard specification. 15. Balance the
tire/wheel assembly. Refer to Tire and Wheel Assembly Balancing - Off-Vehicle. 16. Install the tire
and wheel assembly onto the vehicle. Refer to the appropriate service procedure in SI.
Parts Information
Warranty Information (excluding Saab U.S. Models)
Important The Silicone - Adhesive/Sealant comes in a case quantity of six. ONLY charge warranty
one tube of adhesive/sealant per wheel repair.
For vehicles repaired under warranty, use:
One leak repair per wheel.
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > Customer Interest: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes
Flat/Warning Light ON
Wheels: Customer Interest Tires/Wheels - Tire Slowly Goes Flat/Warning Light ON
TECHNICAL
Bulletin No.: 08-03-10-006C
Date: April 27, 2010
Subject: Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated,
Aluminum Wheel Bead Seat Corrosion (Clean and Resurface Wheel Bead Seat)
Models:
2000-2011 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 08-03-10-006B (Section 03 - Suspension).
Condition
Some customers may comment on a tire that slowly loses air pressure over a period of days or
weeks.
Cause
Abrasive elements in the environment may intrude between the tire and wheel at the bead seat.
There is always some relative motion between the tire and wheel (when the vehicle is driven) and
this motion may cause the abrasive particles to wear the wheel and tire materials. As the wear
continues, there may also be intrusion at the tire/wheel interface by corrosive media from the
environment. Eventually a path for air develops and a 'slow' leak may ensue. This corrosion may
appear on the inboard or outboard bead seating surface of the wheel. This corrosion will not be
visible until the tire is dismounted from the wheel.
Notice
This bulletin specifically addresses issues related to wheel bead seat corrosion that may result in
an air leak. For issues related to porosity of the wheel casting that may result in an air leak, please
refer to Corporate Bulletin Number 05-03-10-006F - Low Tire Pressure, Leaking Cast Aluminum
Wheels (Repair with Adhesive Sealant)
Correction
In most cases, this type of air loss can be corrected by following the procedure below.
Important DO NOT replace a wheel for slow air loss unless you have evaluated and/or tried to
repair the wheel with the procedure below.
Notice
The repair is no longer advised or applicable for chromed aluminum wheels.
1. Remove the wheel and tire assembly for diagnosis. Refer to Tire and Wheel Removal and
Installation in SI. 2. After a water dunk tank leak test, if you determine the source of the air leak to
be around the bead seat of the wheel, dismount the tire to examine
the bead seat. Shown below is a typical area of bead seat corrosion.Typical Location of Bead Seat
Corrosion
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > Customer Interest: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes
Flat/Warning Light ON > Page 13506
Important Other forms of slow air leaks are possible. If the body of the tire, valve stem and wheel
flange show no signs of air seepage, refer to Corporate Bulletin Number 05-03-10-003D for
additional information on possible wheel porosity issues.
3. Bead seat corrosion is identified by what appears like blistering of the wheel finish, causing a
rough or uneven surface that is difficult for the tire to
maintain a proper seal on. Below is a close-up photo of bead seat corrosion on an aluminum wheel
that was sufficient to cause slow air loss. Close-Up of Bead Seat Corrosion
4. If corrosion is found on the wheel bead seat, measure the affected area as shown below.
- For vehicles with 32,186 km (20,000 mi) or less, the total allowable combined linear area of
repairable corrosion is 100 mm (4 in) or less. If the total area(s) of corrosion exceed these
dimensions, the wheel should be replaced.
- For vehicles that have exceeded 32,186 km (20,000 mi), the total allowable combined linear area
of repairable corrosion is 200 mm (8 in) or less. If the total area(s) of corrosion exceed these
dimensions, the wheel should be replaced.
5. In order to correct the wheel leak, use a clean-up (fine cut) sanding disc or biscuit to remove the
corrosion and any flaking paint. You should
remove the corrosion back far enough until you reach material that is stable and firmly bonded to
the wheel. Try to taper the edge of any flaking paint as best you can in order to avoid sharp edges
that may increase the chance of a leak reoccurring. The photo below shows an acceptable repaired
surface.
Notice Corrosion that extends up the lip of the wheel, where after the clean-up process it would be
visible with the tire mounted, is only acceptable on the inboard flange. The inboard flange is not
visible with the wheel assembly in the mounted position. If any loose coatings or corrosion extend
to the visible surfaces on the FACE of the wheel, that wheel must be replaced.
Important Remove ONLY the material required to eliminate the corrosion from the bead seating
surface. DO NOT remove excessive amounts of material. ALWAYS keep the sealing surface as
smooth and level as possible.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > Customer Interest: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes
Flat/Warning Light ON > Page 13507
Acceptably Prepared (Cleaned-Up) Wheel Surface
6. Once the corrosion has been eliminated, you should coat the repaired area with a commercially
available tire sealant such as Patch Brand Bead
Sealant or equivalent. Commercially available bead sealants are black rubber-like coatings that will
permanently fill and seal the resurfaced bead seat. At 21°C (70°F) ambient temperature, this
sealant will set-up sufficiently for tire mounting in about 10 minutes.Coated and Sealed Bead Seat
7. Remount the tire and install the repaired wheel and tire assembly. Refer to Tire and Wheel
Removal and Installation in SI.
Parts Information
Patch Brand Bead Sealer is available from Myers Tires at 1-800-998-9897 or on the web at
www.myerstiresupply.com. The one-quart size can of sealer will repair about 20 wheels.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > Customer Interest: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly Goes
Flat/Warning Light ON > Page 13508
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion
Wheels: All Technical Service Bulletins Wheels - Chrome Wheel Staining/Pitting/Corrosion
INFORMATION
Bulletin No.: 00-03-10-002F
Date: April 21, 2011
Subject: Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum
Wheels
Models:
2012 and Prior GM Cars and Trucks
Supercede: This bulletin is being revised to update model years, suggest additional restorative
products and add additional corrosion information. Please discard Corporate Bulletin Number
00-03-10-002E (Section 03 - Suspension). Important You may give a copy of this bulletin to the
customer.
What is Chemical Staining of Chrome Wheels? Figure 1
Chemical staining in most cases results from acid based cleaners (refer to Figure 1 for an
example). These stains are frequently milky, black, or greenish in appearance. They result from
using cleaning solutions that contain acids on chrome wheels. Soap and water is usually sufficient
to clean wheels.
If the customer insists on using a wheel cleaner they should only use one that specifically states
that it is safe for chromed wheels and does not contain anything in the following list. (Dealers
should also survey any products they use during prep or normal cleaning of stock units for these
chemicals.)
- Ammonium Bifluoride (fluoride source for dissolution of chrome)
- Hydrofluoric Acid (directly dissolves chrome)
- Hydrochloric Acid (directly dissolves chrome)
- Sodium Dodecylbenzenesulfonic Acid
- Sulfamic Acid
- Phosphoric Acid
- Hydroxyacetic Acid
Notice
Many wheel cleaner instructions advise to take care to avoid contact with painted surfaces. Most
customers think of painted surfaces as the fenders, quarter panels and other exterior sheet metal.
Many vehicles have painted brake calipers. Acidic wheel cleaners may craze, crack, or discolor the
paint on the brake calipers. Damage from wheel cleaners is not covered under the vehicle new car
warranty. Soap and water applied with a soft brush is usually all that is required to clean the
calipers.
Whenever any wheel cleaner is used, it must be THOROUGHLY rinsed off of the wheel with clean,
clear water. Special care must be taken to rinse under the hub cap, balance weights, wheel nuts,
lug nut caps, between the wheel cladding and off the back side of the wheel. Wheels returned to
the Warranty Parts Center (WPC) that exhibit damage from wheel cleaners most often have the
damage around and under the wheel weight where the cleaner was incompletely flushed away.
Notice
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion > Page 13514
Do not use cleaning solutions that contain hydrofluoric, oxalic and most other acids on chrome
wheels (or any wheels).
If the customer is unsure of the chemical make-up of a particular wheel cleaner, it should be
avoided.
For wheels showing signs of milky staining from acidic cleaners, refer to Customer Assistance and
Instructions below.
Warranty of Stained Chrome Wheels
Stained wheels are not warrantable. Most acid based cleaners will permanently stain chrome
wheels. Follow-up with dealers has confirmed that such cleaners were used on wheels that were
returned to the Warranty Parts Center (WPC). Any stained wheels received by the WPC will be
charged back to the dealership. To assist the customer, refer to Customer Assistance and
Instructions below.
Pitting or Spotted Appearance of Chrome Wheels Figure 2
A second type or staining or finish disturbance may result from road chemicals, such as calcium
chloride used for dust control of unpaved roads. The staining will look like small pitting (refer to
Figure 2). This staining will usually be on the leading edges of each wheel spoke, but may be
uniformly distributed. If a vehicle must be operated under such conditions, the chrome wheels
should be washed with mild soap and water and thoroughly rinsed as soon as conveniently
possible.
Important Road chemicals, such as calcium chloride used for dust control of unpaved roads, can
also stain chrome wheels. The staining will look like small pitting. This staining will usually be on
the leading edges of each wheel spoke. This is explained by the vehicle traveling in the forward
direction while being splashed by the road chemical. If a vehicle must be operated under such
conditions, the chrome wheels should be washed with mild soap and water and thoroughly rinsed
as soon as conveniently possible.
Warranty of Pitted or Spotted Chrome Wheels
Wheels returned with pitting or spotting as a result of road chemicals may be replaced one time.
Damage resulting from contact with these applied road chemicals is corrosive to the wheels finish
and may cause damage if the wheels are not kept clean.
Important Notify the customer that this is a one time replacement. Please stress to the customer
the vital importance of keeping the wheels clean if they are operating the vehicle in an area that
applies calcium chloride or other dust controlling chemicals! "GM of Canada" dealers require prior
approval by the District Manager - Customer Care and Service Process (DM-CCSP).
"Stardust" Corrosion of Chrome Wheels Figure 3
A third type of finish disturbance results from prolonged exposure to brake dust and resultant
penetration of brake dust through the chrome. As brakes are applied hot particles of brake material
are thrown off and tend to be forced through the leading edge of the wheel spoke windows by
airflow. These
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion > Page 13515
hot particles embed themselves in the chrome layer and create a small pit. If the material is allowed
to sit on the wheel while it is exposed to moisture or salt, it will corrode the wheel beneath the
chrome leaving a pit or small blister in the chrome.
Heavy brake dust build-up should be removed from wheels by using GM Chrome Cleaner and
Polish, P/N 1050173 (in Canada use 10953013). For moderate cleaning, light brake dust build-up
or water spots use GM Swirl Remover Polish, P/N 12377965 (in Canada, use Meguiars
Plast-X(TM) Clear Plastic Cleaner and Polish #G12310C**). After cleaning, the wheel should be
waxed using GM Cleaner Wax, P/N 12377966 (in Canada, use Meguiars Cleaner Wax
#M0616C**), which will help protect the wheel from brake dust and reduce adhesion of any brake
dust that gets on the wheel surface. For general maintenance cleaning, PEEK Metal Polish† may
be used. It will clean and shine the chrome and leave behind a wax coating that may help protect
the finish.
Warranty of Stardust Corroded Chrome Wheels
Wheels returned with pitting or spotting as a result of neglect and brake dust build-up may be
replaced one time.
Important Notify the customer that this is a one time replacement. Please stress to the customer
the vital importance of keeping the wheels clean and free of prolonged exposure to brake dust
build-up. "GM of Canada" dealers require prior approval by the District Manager - Customer Care
and Service Process (DM-CCSP).
Customer Assistance and Instructions
GM has looked for ways customers may improve the appearance of wheels damaged by acidic
cleaners. The following product and procedure has been found to dramatically improve the
appearance of stained wheels. For wheels that have milky stains caused by acidic cleaners try the
following:
Notice
THE 3M CHROME AND METAL POLISH REQUIRED FOR THIS PROCEDURE IS AN
EXTREMELY AGGRESSIVE POLISH/CLEANER. THE WHEELS MUST BE CLEANED BEFORE
APPLICATION TO AVOID SCRATCHING THE WHEEL SURFACE. THIS PRODUCT WILL
REDUCE THE THICKNESS OF THE CHROME PLATING ON THE WHEEL AND IF USED
INCORRECTLY OR EXCESSIVELY MAY REMOVE THE CHROME PLATING ALL TOGETHER,
EXPOSING A LESS BRIGHT AND BRASSY COLORED SUB-LAYER. FOLLOW INSTRUCTIONS
EXACTLY.
1. Wash the wheels with vigorously with soap and water. This step will clean and may reduce
wheel staining. Flood all areas of the wheel with water
to rinse.
2. Dry the wheels completely.
Notice Begin with a small section of the wheel and with light pressure buff off polish and examine
results. ONLY apply and rub with sufficient force and time to remove enough staining that you are
satisfied with the results. Some wheels may be stained to the extent that you may only achieve a
50% improvement while others may be able to be restored to the original lustre. IN ALL CASES,
only apply until the results are satisfactory.
3. Apply 3M Chrome and Metal Polish #39527* with a clean terry cloth towel. As you apply the
polish, the staining will be diminished. 4. When dry, buff off the polish with a clean portion of the
towel. 5. Repeat application of the 3M Chrome and Metal Polish until satisfied with the results. If
continued applications fail to improve the appearance
further discontinue use.
This procedure will improve the appearance of the wheels and may, with repeated applications,
restore the finish dramatically. For wheels that exhibit spotting from road chemicals the above
procedure may marginally improve the condition but will not restore the finish or remove the pitting.
In this type of staining the wheel finish has actually been removed in spots and no manner of
cleaning will restore the finish.
†*We believe this source and their products to be reliable. There may be additional manufacturers
of such products/materials. General Motors does not endorse, indicate any preference for or
assume any responsibility for the products or material from this firm or for any such items that may
be available from other sources.
Parts Information
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 00-03-10-002F > Apr > 11 > Wheels - Chrome Wheel
Staining/Pitting/Corrosion > Page 13516
*This product is currently available from 3M. To obtain information for your local retail location
please call 3M at 1-888-364-3577.
**This product is currently available from Meguiars (Canada). To obtain information for your local
retail location please call Meguiars at 1-800-347-5700 or at www.meguiarscanada.com.
^ This product is currently available from Tri-Peek International. To obtain information for your local
retail location please call Tri-Peek at
1-877-615-4272 or at www.tripeek.com.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 99-08-51-007E > Mar > 11 > Wheels/Tires - Refinishing
Aluminum Wheels
Wheels: All Technical Service Bulletins Wheels/Tires - Refinishing Aluminum Wheels
INFORMATION
Bulletin No.: 99-08-51-007E
Date: March 17, 2011
Subject: Refinishing Aluminum Wheels
Models:
2012 and Prior GM Passenger Cars and Trucks
Supercede: This bulletin is being revised to add additional model years. Please discard Corporate
Bulletin Number 99-08-51-007D (Section 08 - Body and Accessories).
This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not
endorse any repairs that involve welding, bending, straightening or re-machining. Only cosmetic
refinishing of the wheel's coatings, using recommended procedures, is allowed.
Evaluating Damage
In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion,
scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be
sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the
wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been
refinished by an outside company must be returned to the same vehicle. The Dealer must record
the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to
Refinisher's Responsibility - Outside Company later in this bulletin.
Aluminum Wheel Refinishing Recommendations
- Chrome-plated aluminum wheels Re-plating these wheels is not recommended.
- Polished aluminum wheels These wheels have a polyester or acrylic clearcoat on them. If the
clearcoat is damaged, refinishing is possible. However, the required refinishing process cannot be
performed in the dealer environment. Refer to Refinisher's Responsibility - Outside Company later
in this bulletin.
- Painted aluminum wheels These wheels are painted using a primer, color coat, and clearcoat
procedure. If the paint is damaged, refinishing is possible. As with polished wheels, all original
coatings must be removed first. Media blasting is recommended. Refer to GM Aluminum
Refinishing Bulletin #53-17-03A for the re-painting of this type of wheel.
- Bright, machined aluminum wheels These wheels have a polyester or acrylic clearcoat on them.
In some cases, the recessed "pocket" areas of the wheel may be painted. Surface refinishing is
possible. The wheel must be totally stripped by media blasting or other suitable means. The wheel
should be resurfaced by using a sanding process rather than a machining process. This allows the
least amount of material to be removed.
Important Do not use any re-machining process that removes aluminum. This could affect the
dimensions and function of the wheel.
Painting is an option to re-clearcoating polished and bright machined aluminum wheels. Paint will
better mask any surface imperfections and is somewhat more durable than clearcoat alone. GM
recommends using Corsican SILVER WAEQ9283 for a fine "aluminum-like" look or Sparkle
SILVER WA9967 for a very bright look. As an option, the body color may also be used. When using
any of the painting options, it is recommended that all four wheels be refinished in order to maintain
color uniformity. Refer to GM Aluminum Refinishing Bulletin #53-17-03A for specific procedures
and product recommendations.
Refinisher's Responsibility - Outside Company
Important Some outside companies are offering wheel refinishing services. Such refinished wheels
will be permanently marked by the refinisher and are warranted by the refinisher. Any process that
re-machines or otherwise re-manufactures the wheel should not be used.
A refinisher's responsibility includes inspecting for cracks using the Zyglo system or the equivalent.
Any cracked wheels must not be refinished. No welding, hammering or reforming of any kind is
allowed. The wheel ID must be recorded and follow the wheel throughout the process in order to
assure that the same wheel is returned. A plastic media blast may be used for clean up of the
wheel. Hand and/or lathe sanding of the machined surface and the wheel window is allowed.
Material removal, though, must be kept to a minimum. Re-machining of the wheel is not allowed.
Paint and/or clear coat must not be present on the following surfaces: the nut chamfers, the wheel
mounting surfaces and the wheel pilot hole. The refinisher must permanently ID stamp the wheel
and warrant the painted/clearcoated surfaces for a minimum of one year or the remainder of the
new vehicle warranty, whichever is
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 99-08-51-007E > Mar > 11 > Wheels/Tires - Refinishing
Aluminum Wheels > Page 13521
longer.
Important Whenever a wheel is refinished, the mounting surface and the wheel nut contact
surfaces must not be painted or clearcoated. Coating these surfaces could affect the wheel nut
torque.
When re-mounting a tire on an aluminum wheel, coated balance weights must be used in order to
reduce the chance of future cosmetic damage.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 06-03-10-010A > Jun > 10 > Wheels - Changing
Procedures/Precautions
Wheels: All Technical Service Bulletins Wheels - Changing Procedures/Precautions
INFORMATION
Bulletin No.: 06-03-10-010A
Date: June 09, 2010
Subject: Information on Proper Wheel Changing Procedures and Cautions
Models:
2011 and Prior GM Passenger Cars and Trucks 2010 and Prior HUMMER Models 2005-2009 Saab
9-7X 2005-2009 Saturn Vehicles
Attention:
Complete wheel changing instructions for each vehicle line can be found under Tire and Wheel
Removal and Installation in Service Information (SI). This bulletin is intended to quickly review and
reinforce simple but vital procedures to reduce the possibility of achieving low torque during wheel
installation. Always refer to SI for wheel lug nut torque specifications and complete jacking
instructions for safe wheel changing.
Supercede: This bulletin is being revised to include the 2011 model year and update the available
special tool list. Please discard Corporate Bulletin Number 06-03-10-010 (Section 03 Suspension).
Frequency of Wheel Changes - Marketplace Driven
Just a few years ago, the increasing longevity of tires along with greater resistance to punctures
had greatly reduced the number of times wheels were removed to basically required tire rotation
intervals. Today with the booming business in accessory wheels/special application tires (such as
winter tires), consumers are having tire/wheel assemblies removed - replaced - or installed more
than ever. With this increased activity, it opens up more of a chance for error on the part of the
technician. This bulletin will review a few of the common concerns and mistakes to make yourself
aware of.
Proper Servicing Starts With the Right Tools
The following tools have been made available to assist in proper wheel and tire removal and
installation.
- J 41013 Rotor Resurfacing Kit (or equivalent)
- J 42450-A Wheel Hub Resurfacing Kit (or equivalent)
Corroded Surfaces
One area of concern is corrosion on the mating surfaces of the wheel to the hub on the vehicle.
Excessive corrosion, dirt, rust or debris built up on these surfaces can mimic a properly tightened
wheel in the service stall. Once the vehicle is driven, the debris may loosen, grind up or be washed
away from water splash. This action may result in clearance at the mating surface of the wheel and
an under-torqued condition.
Caution
Before installing a wheel, remove any buildup on the wheel mounting surface and brake drum or
brake disc mounting surface. Installing wheels with poor metal-to-metal contact at the mounting
surfaces can cause wheel nuts to loosen. This may cause a wheel to come off when the vehicle is
moving, possibly resulting in a loss of control or personal injury.
Whenever you remove the tire/wheel assemblies, you must inspect the mating surfaces. If
corrosion is found, you should remove the debris with a die grinder equipped with a fine sanding
pad, wire brush or cleaning disc. Just remove enough material to assure a clean, smooth mating
surface.
The J 41013 (or equivalent) can be used to clean the following surfaces:
- The hub mounting surface
- The brake rotor mounting surface
- The wheel mounting surface
Use the J 42450-A (or equivalent) to clean around the base of the studs and the hub.
Lubricants, Grease and Fluids
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Technical Service Bulletins > All Technical Service Bulletins: > 06-03-10-010A > Jun > 10 > Wheels - Changing
Procedures/Precautions > Page 13526
Some customers may use penetrating oils, grease or other lubricants on wheel studs to aid in
removal or installation. Always use a suitable cleaner/solvent to remove these lubricants prior to
installing the wheel and tire assemblies. Lubricants left on the wheel studs may cause improper
readings of wheel nut torque. Always install wheels to clean, dry wheel studs ONLY.
Notice
Lubricants left on the wheel studs or vertical mounting surfaces between the wheel and the rotor or
drum may cause the wheel to work itself loose after the vehicle is driven. Always install wheels to
clean, dry wheel studs and surfaces ONLY. Beginning with 2011 model year vehicles, put a light
coating of grease, GM P/N 1051344 (in Canada, P/N 9930370), on the inner surface of the wheel
pilot hole to prevent wheel seizure to the axle or bearing hub.
Wheel Stud and Lug Nut Damage
Always inspect the wheel studs and lug nuts for signs of damage from crossthreading or abuse.
You should never have to force wheel nuts down the stud. Lug nuts that are damaged may not
retain properly, yet give the impression of fully tightening. Always inspect and replace any
component suspected of damage.
Tip
Always start wheel nuts by hand! Be certain that all wheel nut threads have been engaged
BEFORE tightening the nut.
Important If the vehicle has directional tread tires, verify the directional arrow on the outboard side
of the tire is pointing in the direction of forward rotation.
Wheel Nut Tightening and Torque
Improper wheel nut tightening can lead to brake pulsation and rotor damage. In order to avoid
additional brake repairs, evenly tighten the wheel nuts to the proper torque specification as shown
for each vehicle in SI. Always observe the proper wheel nut tightening sequence as shown below in
order to avoid trapping the wheel on the wheel stud threads or clamping the wheel slightly off
center resulting in vibration.
The Most Important Service You Provide
While the above information is well known, and wheel removal so common, technicians run the risk
of becoming complacent on this very important
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 06-03-10-010A > Jun > 10 > Wheels - Changing
Procedures/Precautions > Page 13527
service operation. A simple distraction or time constraint that rushes the job may result in personal
injury if the greatest of care is not exercised. Make it a habit to double check your work and to
always side with caution when installing wheels.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial
Force Variation (RFV)
Wheels: All Technical Service Bulletins Wheels/Tires - Tire Radial Force Variation (RFV)
INFORMATION
Bulletin No.: 00-03-10-006F
Date: May 04, 2010
Subject: Information on Tire Radial Force Variation (RFV)
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2, H3 2009
and Prior Saab 9-7X 2000-2005 Saturn L Series 2003-2007 Saturn ION
Supercede: This bulletin is being revised to considerably expand the available information on
Radial Force Variation (RFV) and should be reviewed in whole. Please discard Corporate Bulletin
Number 00-03-10-006E (Section 03 - Suspension).
Important
- Before measuring tires on equipment such as the Hunter GSP9700, the vehicle MUST be driven
a minimum of 16 km (10 mi) to ensure removal of any flat-spotting. Refer to Corporate Bulletin
Number 03-03-10-007E - Tire/Wheel Characteristics of GM Original Equipment Tires.
- Equipment such as the Hunter GSP9700 MUST be calibrated prior to measuring tire/wheel
assemblies for each vehicle.
The purpose of this bulletin is to provide guidance to GM dealers when using tire force variation
measurement equipment, such as the Hunter GSP9700. This type of equipment can be a valuable
tool in diagnosing vehicle ride concerns. The most common ride concern involving tire radial force
variation is highway speed shake on smooth roads.
Tire related smooth road highway speed shake can be caused by three conditions: imbalance, out
of round and tire force variation. These three conditions are not necessarily related. All three
conditions must be addressed.
Imbalance is normally addressed first, because it is the simpler of the three to correct. Off-vehicle,
two plane dynamic wheel balancers are readily available and can accurately correct any
imbalance. Balancer calibration and maintenance, proper attachment of the wheel to the balancer,
and proper balance weights, are all factors required for a quality balance. However, a perfectly
balanced tire/wheel assembly can still be "oval shaped" and cause a vibration.
Before balancing, perform the following procedures.
Tire and Wheel Diagnosis
1. Set the tire pressure to the placard values. 2. With the vehicle raised, ensure the wheels are
centered on the hub by loosening all wheel nuts and hand-tightening all nuts first by hand while
shaking the wheel, then torque to specifications using a torque wrench, NOT a torque stick.
3. Visually inspect the tires and the wheels. Inspect for evidence of the following conditions and
correct as necessary:
- Missing balance weights
- Bent rim flange
- Irregular tire wear
- Incomplete bead seating
- Tire irregularities (including pressure settings)
- Mud/ice build-up in wheel
- Stones in the tire tread
- Remove any aftermarket wheels and/or tires and restore vehicle to original condition prior to
diagnosing a smooth road shake condition.
4. Road test the vehicle using the Electronic Vibration Analyzer (EVA) essential tool. Drive for a
sufficient distance on a known, smooth road
surface to duplicate the condition. Determine if the vehicle is sensitive to brake apply. If the brakes
are applied lightly and the pulsation felt in the steering wheel increases, refer to the Brakes section
of the service manual that deals with brake-induced pulsation. If you can start to hear the vibration
as a low boom noise (in addition to feeling it), but cannot see it, the vehicle likely has a first order
(one pulse per propshaft revolution) driveline vibration. Driveline first order vibrations are high
enough in frequency that most humans can start to hear them at highway speeds, but are too high
to be able to be easily seen. These issues can be caused by driveline imbalance or misalignment.
If the vehicle exhibits this low boom and the booming pulses in-and-out on a regular basis (like a
throbbing), chances are good that the vehicle could have driveline vibration. This type
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial
Force Variation (RFV) > Page 13532
of vibration is normally felt more in the "seat of the pants" than the steering wheel.
5. Next, record the Hertz (Hz) reading as displayed by the EVA onto the tire data worksheet found
at the end of this bulletin. This should be done
after a tire break-in period of at least 16 km (10 mi) at 72 km/h (45 mph) or greater, in order to
eliminate any possible tire flat-spotting. This reading confirms what the vehicle vibration frequency
is prior to vehicle service and documents the amount of improvement occurring as the result of the
various steps taken to repair. Completing the Steering Wheel Shake Worksheet below is required.
A copy of the completed worksheet must be saved with the R.O. and a copy included with any
parts returned to the Warranty Parts Center for analysis. A reading of 35 to 50 Hz typically
indicates a first order propshaft vibration. If this is the situation, refer to Corporate Bulletin Number
08-07-30-044D. Generally, a reading between 10 and 20 Hz indicates a tire/wheel vibration and if
this is the reading obtained, continue using this bulletin. If the tire 1st order vibration goes away
and stays away during this evaluation, the cause is likely tire flat-spotting. Tire flat-spotting vibration
may come and go at any speed over 72 km/h (45 mph) during the first 10 minutes of operation, if
vibration continues after 10 minutes of driving at speeds greater than 72 km/h (45 mph), tire
flat-spotting can be ruled out as the cause for vibration.
6. If flat-spotting is the cause, provide the explanation that this has occurred due to the vehicle
being parked for long periods of time and that the
nature of the tire is to take a set. Refer to Corporate Bulletin Number 03-03-10-007E: Information
on Tire/Wheel Characteristics (Vibration, Balance, Shake, Flat Spotting) of GM Original Equipment
Tires.
7. If the road test indicates a shake/vibration exists, check the imbalance of each tire/wheel
assembly on a known, calibrated, off-car dynamic
balancer.Make sure the mounting surface of the wheel and the surface of the balancer are
absolutely clean and free of debris. Be sure to chose the proper cone/collet for the wheel, and
always use the pilot bore for centering. Never center the wheel using the hub-cap bore since it is
not a precision machined surface. If any assembly calls for more than 1/4 ounce on either rim
flange, remove all balance weights and rebalance to as close to zero as possible. If you can see
the vibration (along with feeling it) in the steering wheel (driving straight without your hands on the
wheel), it is very likely to be a tire/wheel first order (one pulse per revolution) disturbance. First
order disturbances can be caused by imbalance as well as non-uniformities in tires, wheels or
hubs. This first order frequency is too low for a human to hear, but if the amplitude is high enough,
it can be seen.
If a vibration or shake still exists after balancing, any out of round conditions, of the wheel, and
force variation conditions of the tire, must be addressed. Equipment such as the Hunter GSP9700
can address both (it is also a wheel balancer).
Tire radial force vibration (RFV) can be defined as the amount of stiffness variation the tire will
produce in one revolution under a constant load. Radial force variation is what the vehicle feels
because the load (weight) of the vehicle is always on the tires. Although free runout of tires (not
under load) is not always a good indicator of a smooth ride, it is critical that total tire/wheel
assembly runout be within specification.
Equipment such as the Hunter GSP9700 loads the tire, similar to on the vehicle, and measures
radial force variation of the tire/wheel assembly. Note that the wheel is affecting the tire's RFV
measurement at this point. To isolate the wheel, its runout must be measured. This can be easily
done on the Hunter, without the need to set up dial indicators. If the wheel meets the runout
specification, the tire's RFV can then be addressed.
After measuring the tire/wheel assembly under load, and the wheel alone, the machine then
calculates (predicts) the radial force variation of the tire. However, because this is a prediction that
can include mounting inaccuracies, and the load wheel is much smaller in diameter than used in
tire production, this type of service equipment should NOT be used to audit new tires. Rather, it
should be used as a service diagnostic tool to minimize radial force variation of the tire/wheel
assembly.
Equipment such as the Hunter GSP9700 does an excellent job of measuring wheel runout, and of
finding the low point of the wheel (for runout) and the high point of the tire (for radial force
variation). This allows the tire to be matched mounted to the wheel for lowest tire/wheel assembly
force variation.
The machine will simplify this process into easy steps. The following assembly radial force variation
numbers should be used as a guide:
When measuring RFV and match mounting tires perform the following steps.
Measuring Wheel Runout and Assembly Radial Force Variation
Important The completed worksheet at the end of this bulletin must be attached to the hard copy of
the repair order.
- Measure radial force variation and radial runout.
- If a road force/balancing machine is used, record the radial force variation (RFV) on the
worksheet at the end of this bulletin. It may be of benefit to have the lowest RFV assembly to the
front left corner. If the machine is not available and the EVA data suggests there is an issue, swap
the tire and wheel assemblies from the front to the back. Re-check on the EVA and if the problem
still exists, test another vehicle to find tires that do not exhibit the same frequency and swap those
tires onto the subject vehicle.
- If a runout/balancing machine is used, record the radial runout of the tire/wheel assemblies on the
worksheet at the end of this bulletin. If one or more of the tire/wheel assemblies are more than.040
in (1.02 mm), match mount the tire to the wheel to get below.040 in (1.02 mm). For sensitive
customers, readings of 0.030 inch (0.76 mm) or less are preferable, it may also be of benefit to
have the lowest runout assembly to the front left corner. If the machine is not available and the
EVA data suggests there is an issue, swap the tire and wheel assemblies from the front to the
back. Re-check on the EVA and if the problem still exists, test another vehicle to find tires that do
not exhibit the same frequency and swap those tires
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Technical Service Bulletins > All Technical Service Bulletins: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial
Force Variation (RFV) > Page 13533
onto the subject vehicle.
- After match mounting, the tire/wheel assembly must be rebalanced.
If match mounting tires to in-spec wheels produces assembly values higher than these, tire
replacement may be necessary. Replacing tires at lower values will probably mean good tires are
being condemned. Because tires can sometimes become temporarily flat-spotted, which will affect
force variation, it is important that the vehicle be driven at least 16 km (10 mi) prior to measuring.
Tire pressure must also be adjusted to the usage pressure on the vehicle's tire placard prior to
measuring.
Most GM vehicles will tolerate radial force variation up to these levels. However, some vehicles are
more sensitive, and may require lower levels. Also, there are other tire parameters that equipment
such as the Hunter GSP9700 cannot measure that may be a factor. In such cases, TAC should be
contacted for further instructions.
Important
- When mounting a GM wheel to a wheel balancer/force variation machine, always use the wheel's
center pilot hole. This is the primary centering mechanism on all GM wheels; the bolt holes are
secondary. Usually a back cone method to the machine should be used. For added accuracy and
repeatability, a flange plate should be used to clamp the wheel onto the cone and machine. This
system is offered by all balancer manufacturers in GM's dealer program.
- Any type of service equipment that removes tread rubber by grinding, buffing or truing is NOT
recommended, and may void the tire warranty. However, tires may have been ground by the tire
company as part of their tire manufacturing process. This is a legitimate procedure.
Steering Wheel Shake Worksheet
When diagnosing vibration concerns, use the following worksheet in conjunction with the
appropriate Vibration Analysis-Road testing procedure in the Vibration Correction sub-section in SI.
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 00-03-10-006F > May > 10 > Wheels/Tires - Tire Radial
Force Variation (RFV) > Page 13534
Refer to the appropriate section of SI for specifications and repair procedures that are related to the
vibration concern.
Disclaimer
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Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 05-03-10-003F > Apr > 10 > Tires/Wheels - Low Tire/Leaking
Cast Aluminum Wheels
Wheels: All Technical Service Bulletins Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
TECHNICAL
Bulletin No.: 05-03-10-003F
Date: April 27, 2010
Subject: Low Tire Pressure, Leaking Cast Aluminum Wheels (Repair with Adhesive Sealant)
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks (Including Saturn) 2010 and Prior
HUMMER H2, H3 2009 and Prior Saab 9-7X with Cast Aluminum Wheels
Supercede: This bulletin is being revised to update the model years and the bulletin reference
information. Please discard Corporate Bulletin Number 05-03-10-003E (Section 03 - Suspension).
Condition
Some customers may comment on a low tire pressure condition.
Diagnosis of the low tire pressure condition indicates an air leak through the cast aluminum wheel.
Cause
Porosity in the cast aluminum wheel may be the cause.
Notice
This bulletin specifically addresses issues related to the wheel casting that may result in an air
leak. For issues related to corrosion of the wheel in service, please refer to Corporate Bulletin
Number 08-03-10-006C - Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light
Illuminated, Aluminum Wheel Bead Seat Corrosion (Clean and Resurface Wheel Bead Seat).
Correction
1. Remove the tire and wheel assembly from the vehicle. Refer to the appropriate service
procedure in SI. 2. Locate the leaking area by inflating the tire to 276 kPa (40 psi) and dipping the
tire/wheel assembly in a water bath, or use a spray bottle with soap
and water to locate the specific leak location.
Important
- If the porosity leak is located in the bead area of the aluminum rim (where the tire meets the rim),
the wheel should be replaced.
- If two or more leaks are located on one wheel, the wheel should be replaced.
3. If air bubbles are observed, mark the location.
- If the leak location is on the tire/rubber area, refer to Corporate Bulletin Number 04-03-10-001F Tire Puncture Repair Procedures for All Cars and Light Duty Trucks.
- If the leak is located on the aluminum wheel area, continue with the next step.
4. Inscribe a mark on the tire at the valve stem in order to indicate the orientation of the tire to the
wheel. 5. Dismount the tire from the wheel. Refer to Tire Mounting and Dismounting. 6. Remove
the tire pressure sensor. Refer to Tire Pressure Sensor removal procedure in SI. 7. Scuff the
INSIDE rim surface at the leak area with #80 grit paper and clean the area with general purpose
cleaner, such as 3M(R) General Purpose
Adhesive Cleaner, P/N 08984, or equivalent.
8. Apply a 3 mm (0.12 in) thick layer of Silicone - Adhesive/Sealant, P/N 12378478 (in Canada, use
88900041), or equivalent, to the leak area. 9. Allow for the adhesive/sealant to dry.
Notice Caution must be used when mounting the tire so as not to damage the sealer. Damaging
the repair area may result in an air leak.
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Cast Aluminum Wheels > Page 13539
10. Align the inscribed mark on the tire with the valve stem on the wheel. 11. Reinstall the Tire
Pressure Sensor. Refer to Tire Pressure Sensor installation procedure in SI. 12. Mount the tire on
the wheel. Refer to Tire Mounting and Dismounting. 13. Pressurize the tire to 276 kPa (40 psi) and
inspect for leaks. 14. Adjust tire pressure to meet the placard specification. 15. Balance the
tire/wheel assembly. Refer to Tire and Wheel Assembly Balancing - Off-Vehicle. 16. Install the tire
and wheel assembly onto the vehicle. Refer to the appropriate service procedure in SI.
Parts Information
Warranty Information (excluding Saab U.S. Models)
Important The Silicone - Adhesive/Sealant comes in a case quantity of six. ONLY charge warranty
one tube of adhesive/sealant per wheel repair.
For vehicles repaired under warranty, use:
One leak repair per wheel.
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly
Goes Flat/Warning Light ON
Wheels: All Technical Service Bulletins Tires/Wheels - Tire Slowly Goes Flat/Warning Light ON
TECHNICAL
Bulletin No.: 08-03-10-006C
Date: April 27, 2010
Subject: Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated,
Aluminum Wheel Bead Seat Corrosion (Clean and Resurface Wheel Bead Seat)
Models:
2000-2011 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 08-03-10-006B (Section 03 - Suspension).
Condition
Some customers may comment on a tire that slowly loses air pressure over a period of days or
weeks.
Cause
Abrasive elements in the environment may intrude between the tire and wheel at the bead seat.
There is always some relative motion between the tire and wheel (when the vehicle is driven) and
this motion may cause the abrasive particles to wear the wheel and tire materials. As the wear
continues, there may also be intrusion at the tire/wheel interface by corrosive media from the
environment. Eventually a path for air develops and a 'slow' leak may ensue. This corrosion may
appear on the inboard or outboard bead seating surface of the wheel. This corrosion will not be
visible until the tire is dismounted from the wheel.
Notice
This bulletin specifically addresses issues related to wheel bead seat corrosion that may result in
an air leak. For issues related to porosity of the wheel casting that may result in an air leak, please
refer to Corporate Bulletin Number 05-03-10-006F - Low Tire Pressure, Leaking Cast Aluminum
Wheels (Repair with Adhesive Sealant)
Correction
In most cases, this type of air loss can be corrected by following the procedure below.
Important DO NOT replace a wheel for slow air loss unless you have evaluated and/or tried to
repair the wheel with the procedure below.
Notice
The repair is no longer advised or applicable for chromed aluminum wheels.
1. Remove the wheel and tire assembly for diagnosis. Refer to Tire and Wheel Removal and
Installation in SI. 2. After a water dunk tank leak test, if you determine the source of the air leak to
be around the bead seat of the wheel, dismount the tire to examine
the bead seat. Shown below is a typical area of bead seat corrosion.Typical Location of Bead Seat
Corrosion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly
Goes Flat/Warning Light ON > Page 13544
Important Other forms of slow air leaks are possible. If the body of the tire, valve stem and wheel
flange show no signs of air seepage, refer to Corporate Bulletin Number 05-03-10-003D for
additional information on possible wheel porosity issues.
3. Bead seat corrosion is identified by what appears like blistering of the wheel finish, causing a
rough or uneven surface that is difficult for the tire to
maintain a proper seal on. Below is a close-up photo of bead seat corrosion on an aluminum wheel
that was sufficient to cause slow air loss. Close-Up of Bead Seat Corrosion
4. If corrosion is found on the wheel bead seat, measure the affected area as shown below.
- For vehicles with 32,186 km (20,000 mi) or less, the total allowable combined linear area of
repairable corrosion is 100 mm (4 in) or less. If the total area(s) of corrosion exceed these
dimensions, the wheel should be replaced.
- For vehicles that have exceeded 32,186 km (20,000 mi), the total allowable combined linear area
of repairable corrosion is 200 mm (8 in) or less. If the total area(s) of corrosion exceed these
dimensions, the wheel should be replaced.
5. In order to correct the wheel leak, use a clean-up (fine cut) sanding disc or biscuit to remove the
corrosion and any flaking paint. You should
remove the corrosion back far enough until you reach material that is stable and firmly bonded to
the wheel. Try to taper the edge of any flaking paint as best you can in order to avoid sharp edges
that may increase the chance of a leak reoccurring. The photo below shows an acceptable repaired
surface.
Notice Corrosion that extends up the lip of the wheel, where after the clean-up process it would be
visible with the tire mounted, is only acceptable on the inboard flange. The inboard flange is not
visible with the wheel assembly in the mounted position. If any loose coatings or corrosion extend
to the visible surfaces on the FACE of the wheel, that wheel must be replaced.
Important Remove ONLY the material required to eliminate the corrosion from the bead seating
surface. DO NOT remove excessive amounts of material. ALWAYS keep the sealing surface as
smooth and level as possible.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly
Goes Flat/Warning Light ON > Page 13545
Acceptably Prepared (Cleaned-Up) Wheel Surface
6. Once the corrosion has been eliminated, you should coat the repaired area with a commercially
available tire sealant such as Patch Brand Bead
Sealant or equivalent. Commercially available bead sealants are black rubber-like coatings that will
permanently fill and seal the resurfaced bead seat. At 21°C (70°F) ambient temperature, this
sealant will set-up sufficiently for tire mounting in about 10 minutes.Coated and Sealed Bead Seat
7. Remount the tire and install the repaired wheel and tire assembly. Refer to Tire and Wheel
Removal and Installation in SI.
Parts Information
Patch Brand Bead Sealer is available from Myers Tires at 1-800-998-9897 or on the web at
www.myerstiresupply.com. The one-quart size can of sealer will repair about 20 wheels.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 08-03-10-006C > Apr > 10 > Tires/Wheels - Tire Slowly
Goes Flat/Warning Light ON > Page 13546
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Technical Service Bulletins: > 04-03-10-012B > Feb > 08 > Wheels - Chrome Wheel Brake
Dust Accumulation/Pitting
Wheels: All Technical Service Bulletins Wheels - Chrome Wheel Brake Dust Accumulation/Pitting
Bulletin No.: 04-03-10-012B
Date: February 01, 2008
INFORMATION
Subject: Pitting and Brake Dust on Chrome wheels
Models: 2008 and Prior GM Passenger Cars and Trucks (including Saturn) 2008 and Prior
HUMMER H2, H3 2005-2008 Saab 9-7X
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
04-03-10-012A (Section 03 - Suspension).
Analysis of Returned Wheels
Chrome wheels returned under the New Vehicle Limited Warranty for pitting concerns have
recently been evaluated. This condition is usually most severe in the vent (or window) area of the
front wheels. This "pitting" may actually be brake dust that has been allowed to accumulate on the
wheel. The longer this accumulation builds up, the more difficult it is to remove.
Cleaning the Wheels
In all cases, the returned wheels could be cleaned to their original condition using GM Vehicle Care
Cleaner Wax, P/N 12377966 (in Canada, P/N 10952905). When using this product, you should
confine your treatment to the areas of the wheel that show evidence of the brake dust build-up.
This product is only for use on chromed steel or chromed aluminum wheels.
Parts Information
Warranty Information
Wheel replacement for this condition is NOT applicable under the terms of the New Vehicle Limited
Warranty.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Other Service Bulletins for Wheels: > 08-06-01-022 > Oct > 08 > Engine - Ticking Noise
Valve: All Technical Service Bulletins Engine - Ticking Noise
TECHNICAL
Bulletin No.: 08-06-01-022
Date: October 28, 2008
Subject: Tick Type Noise Coming From Engine (Inspect Exhaust Valve Stem to Guide Clearance)
Models: 2006-2008 Chevrolet Equinox 2006-2008 Pontiac Torrent
Equipped with 3.4L Engine (VIN F - RPO LNJ)
Condition
Some customers may comment that they hear a ticking noise coming from the engine. Some may
describe the noise as sounding like a lifter tick.
Cause
The finish on the exhaust valve stem(s) may have caused excessive wear on the exhaust valve
guide(s) in the cylinder heads. When this occurs, the exhaust valve stem to guide clearance
becomes out of specification and the tick noise is created each time the valve stem comes in
contact with the guide.
Correction
1. Verify that the engine oil level is within the operating range.
2. Verify that the noise in question is not the normal ticking type sound produced by the fuel
injectors.
3. Connect a mechanical oil pressure gauge and verify that the engine has adequate oil pressure.
Refer to SI for additional information if necessary.
4. If the oil pressure is within specification, then remove the left (front) rocker cover and gasket.
Refer to the Valve Rocker Arm Cover Replacement - Left Side in SI.
5. Place shop towels over the rocker arms and push rods to contain engine oil in the next step.
6. Start the engine and allow to idle.
Important:
The following steps only need to be done on the exhaust valves.
7. Using a block of wood or the wooden handle on a hammer, place a side load on cylinder number
2 exhaust valve spring.
^ If the noise is reduced or eliminated, then there is excessive clearance between that exhaust
valve stem and the guide in the cylinder head. Proceed to Step 8.
^ If the noise is NOT reduced or eliminated, then proceed to cylinder number 4 and 6 exhaust valve
springs and apply the same type of side load. If the noise is reduced or eliminated then there is
excessive clearance between an exhaust valve stem and guide in the cylinder head. Proceed to
the next step.
8. Remove the right (rear) rocker cover.
Important:
It may not be possible to apply a side load to the exhaust springs with a piece of wood or hammer
handle because there is less clearance at the rear side of the engine. As a result, the inspection
procedure on the rear side is different than the left (front) side.
9. Remove the rocker arm and push rod from cylinder # 1 exhaust valve.
Important:
With one rocker arm and push rod removed at a time in the next steps the engine will exhibit a
noticeable misfire or rough idle during the test.
10. With shop towels in place to contain any oil, start the engine and allow to idle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Other Service Bulletins for Wheels: > 08-06-01-022 > Oct > 08 > Engine - Ticking Noise >
Page 13556
^ If the tick noise is reduced or eliminated, then there is excessive clearance between that exhaust
valve stem and guide in the cylinder head. Proceed to Step 11.
^ If the noise is NOT reduced or eliminated, then reinstall the push rod and rocker arm and tighten
the bolt to specification. Then proceed to cylinder number 3, and if necessary number 5, exhaust
valve and repeat the process. If the noise is reduced or eliminated, then there is excessive
clearance between an exhaust valve stem and guide in the cylinder head. Proceed to the next step.
^ If the tick noise is always present and never is reduced or eliminated when testing all 6 exhaust
valves, then the noise is coming from some other source and it is not necessary to continue with
this bulletin. Refer to SI for additional diagnostic information.
11. Replace any cylinder head that has an exhaust valve stem with excessive clearance to the
guide. It will be necessary to install three new exhaust valves in each cylinder head replaced.
Please note that the exhaust valve part number listed below will have an improved stem finish.
Refer to the Cylinder Head Replacement procedure in SI.
Parts Information
Replacement cylinder heads DO NOT come with any valvetrain components or expansion (freeze)
plugs. When ordering a replacement head, it will also be necessary to order 3 exhaust valves and 2
expansion plugs for each head ordered. The intake valves and "all" springs, caps and locks are
reusable. In addition, new valve stem seals (intake and exhaust) will be needed and are included in
the head gasket kit listed.
Warranty Information
For vehicle repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Technical Service Bulletins > All Other Service Bulletins for Wheels: > 08-06-01-022 > Oct > 08 > Engine - Ticking Noise >
Page 13562
^ If the tick noise is reduced or eliminated, then there is excessive clearance between that exhaust
valve stem and guide in the cylinder head. Proceed to Step 11.
^ If the noise is NOT reduced or eliminated, then reinstall the push rod and rocker arm and tighten
the bolt to specification. Then proceed to cylinder number 3, and if necessary number 5, exhaust
valve and repeat the process. If the noise is reduced or eliminated, then there is excessive
clearance between an exhaust valve stem and guide in the cylinder head. Proceed to the next step.
^ If the tick noise is always present and never is reduced or eliminated when testing all 6 exhaust
valves, then the noise is coming from some other source and it is not necessary to continue with
this bulletin. Refer to SI for additional diagnostic information.
11. Replace any cylinder head that has an exhaust valve stem with excessive clearance to the
guide. It will be necessary to install three new exhaust valves in each cylinder head replaced.
Please note that the exhaust valve part number listed below will have an improved stem finish.
Refer to the Cylinder Head Replacement procedure in SI.
Parts Information
Replacement cylinder heads DO NOT come with any valvetrain components or expansion (freeze)
plugs. When ordering a replacement head, it will also be necessary to order 3 exhaust valves and 2
expansion plugs for each head ordered. The intake valves and "all" springs, caps and locks are
reusable. In addition, new valve stem seals (intake and exhaust) will be needed and are included in
the head gasket kit listed.
Warranty Information
For vehicle repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Description and Operation > Replacement Wheels Description
Wheels: Description and Operation Replacement Wheels Description
Replacement Wheels Description
Replace the wheel if any of the following conditions exist:
* The wheel exhibits excessive runout
* The wheel is bent
* The wheel is cracked
* The wheel is severely rusted
* The wheel is severely corroded
Important: Air leaks caused by porosity on aluminum wheels are repairable.
* The wheel leaks air
Caution: If you are replacing the wheel(s), the wheel stud(s), the wheel nut(s) or the wheel bolt(s),
install only new Saturn original equipment parts. Installation of used parts or non-Saturn original
equipment parts may cause the wheel to loosen, loss of tire air pressure, poor vehicle handling and
loss of vehicle control resulting in personal injury.
Notice: The use of non-Saturn original equipment wheels may cause:
* Damage to the wheel bearing, the wheel fasteners and the wheel
* Tire damage caused by the modified clearance to the adjacent vehicle components
* Adverse vehicle steering stability caused by the modified scrub radius
* Damage to the vehicle caused by the modified ground clearance
* Speedometer and odometer inaccuracy
Replace the wheel, the wheel studs and the wheel/nuts, or the wheel bolts if applicable, if any of
the following conditions exist:
* The wheel has elongated bolt holes.
* The wheel/nuts, or bolts if applicable, loosen repeatedly.
Steel wheel identification is stamped into the wheel near the valve stem.
Aluminum wheel identification is cast into the inboard side of the wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheels > Component Information >
Description and Operation > Replacement Wheels Description > Page 13565
Wheels: Description and Operation Steel Wheel Repair Description
Steel Wheel Repair Description
Notice: Do not heat wheels in an attempt to soften them for straightening or repair damage from
striking curbs, etc. Do not weld wheels. The alloy used in these wheels is heat-treated and
uncontrolled heating from welding affects the properties of the material.
Notice: The use of tubes in tubeless tires is not a recommended repair due to the fact that speed
ratings are greatly reduced.
If leaks are found in a steel wheel, replace the wheel with a wheel of original equipment quality.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Bearing > Component Information >
Testing and Inspection
Wheel Bearing: Testing and Inspection
Wheel Bearings Diagnosis
Step 1 - Step 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Bearing > Component Information >
Service and Repair > Front Suspension
Wheel Bearing: Service and Repair Front Suspension
Wheel Bearing/Hub Replacement - Front
Removal Procedure
1. Remove the front brake rotor.
2. Disconnect the wheel speed sensor electrical connector, if equipped.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Bearing > Component Information >
Service and Repair > Front Suspension > Page 13571
3. Remove the wheel speed sensor electrical connector form the connector bracket.
4. Remove the front wheel drive shaft spindle nut. 5. Remove the speed sensor.
6. Support the wheel drive shaft with heavy mechanic's wire or equivalent. 7. Remove and discard
the wheel bearing/hub mounting bolts. 8. Remove the wheel bearing/hub assembly from the
steering knuckle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Bearing > Component Information >
Service and Repair > Front Suspension > Page 13572
1. Install the wheel bearing/hub assembly to the steering knuckle.
Notice: Refer to Fastener Notice.
2. Install the wheel bearing/hub mounting bolts.
Tighten the bolts to 130 N.m (96 lb ft).
3. Install the wheel drive shaft spindle nut.
Tighten the nut to 205 N.m (151 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Bearing > Component Information >
Service and Repair > Front Suspension > Page 13573
4. Install the wheel speed sensor electrical connector to the mounting bracket, if equipped.
5. Connect the wheel speed sensor electrical connector. 6. Install the speed sensor.
7. Install the front brake rotor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Bearing > Component Information >
Service and Repair > Front Suspension > Page 13574
Wheel Bearing: Service and Repair Rear Suspension
Wheel Bearing/Hub Replacement - Rear
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Bearing > Component Information >
Service and Repair > Front Suspension > Page 13575
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Hub > Axle Nut > Component
Information > Specifications
Axle Nut: Specifications
Front Wheel Drive Shaft Spindle Nut
.........................................................................................................................................................
205 Nm 151 lb ft Rear Wheel Drive Shaft Spindle Nut
............................................................................................................................................................
110 Nm 81 lb ft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Fastener > Component Information
> Specifications
Wheel Fastener: Specifications
Wheel Nut ............................................................................................................................................
....................................................... 140 Nm 100 lb ft
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Fastener > Component Information
> Specifications > Page 13583
Wheel Fastener: Description and Operation
Metric Wheel Nuts and Bolts Description
Metric wheel/nuts and bolts are identified in the following way:
* The wheel/nut has the word Metric stamped on the face.
* The letter M is stamped on the end of the wheel bolt.
The thread sizes of metric wheel/nuts and the bolts are indicated by the following example: M12 x
1.5.
* M = Metric
* 12 = Diameter in millimeters
* 1.5 = Millimeters gap per thread
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Fastener > Component Information
> Service and Repair > Front Suspension
Wheel Fastener: Service and Repair Front Suspension
Wheel Stud Replacement
Tools Required
J 43631 Ball Joint Remover
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the tire and wheel assembly.
3. Remove the wheel bearing/hub assembly.
4. Using the J 43631, press out the wheel stud from the wheel bearing/hub assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Fastener > Component Information
> Service and Repair > Front Suspension > Page 13586
Installation Procedure
1. Install the wheel stud to the wheel bearing/hub assembly from the bearing side of the hub flange.
2. Place flat washers over the wheel stud being installer. 3. Install the wheel nut or a hex head nut
to the wheel stud. 4. Gradually tighten the nut in order to draw the stud into the hub flange until the
head of the wheel stud is fully seated against the hub flange. 5. Remove the nut and flat washers.
6. Install the wheel bearing/hub assembly to the steering knuckle. 7. Install the tire and wheel
assembly. 8. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Fastener > Component Information
> Service and Repair > Front Suspension > Page 13587
Wheel Fastener: Service and Repair Rear Suspension
Wheel Stud Replacement
Tools Required
J 43631 Ball Joint Remover
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting. 2. Remove the tire and wheel assembly.
3. Remove the wheel bearing/hub replacement.
4. Using the J 43631, press out the wheel stud from the wheel bearing/hub assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Steering and Suspension > Wheels and Tires > Wheel Fastener > Component Information
> Service and Repair > Front Suspension > Page 13588
Installation Procedure
1. Install the wheel stud to the wheel bearing/hub assembly from the bearing side of the hub flange.
2. Place flat washers over the wheel stud being installed. 3. Install the wheel nut or a hex head nut
to the wheel stud. 4. Gradually tighten the nut in order to draw the stud into the hub flange until the
head of the wheel stud is fully seated against the hub flange. 5. Remove the nut and flat washers.
6. Install the tire and wheel assembly. 7. Lower the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Door, HVAC > Air Door Actuator / Motor, HVAC >
Component Information > Locations
Air Door Actuator / Motor: Locations
HVAC Component Views
HVAC Module Assembly
1 - Recirculation Actuator 2 - HVAC Blower Motor 3 - Blower Motor Control Processor 4 - Air
Temperature Actuator 5 - Mode Actuator 6 - Evaporator Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Door, HVAC > Air Door Actuator / Motor, HVAC >
Component Information > Service and Repair > Air Temperature Actuator Replacement
Air Door Actuator / Motor: Service and Repair Air Temperature Actuator Replacement
Air Temperature Actuator Replacement
Removal Procedure
1. Remove the instrument panel compartment. 2. Disconnect the electrical connector from the air
temperature actuator. 3. Remove the air temperature actuator screws from the HVAC module. 4.
Remove the air temperature actuator from the HVAC module.
Installation Procedure
1. Align the air temperature actuator with the door shaft and rotate into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Door, HVAC > Air Door Actuator / Motor, HVAC >
Component Information > Service and Repair > Air Temperature Actuator Replacement > Page 13596
Notice: Refer to Fastener Notice.
2. Install the air temperature actuator screws to the HVAC module.
Tighten the screws to 1.5 N.m (13 lb in).
3. Connect the electrical connector to the air temperature actuator.
Important: Any time an actuator or the HVAC control module is replaced, the HVAC control module
must be calibrated to ensure proper air distribution.
4. Calibrate the actuators. Refer to Actuators Recalibration. See: Testing and
Inspection/Programming and Relearning 5. Cycle the ignition and verify proper operation. 6. Install
the instrument panel compartment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Door, HVAC > Air Door Actuator / Motor, HVAC >
Component Information > Service and Repair > Air Temperature Actuator Replacement > Page 13597
Air Door Actuator / Motor: Service and Repair Mode Actuator Replacement
Mode Actuator Replacement
Removal Procedure
1. Remove the left side insulator/closeout panel. 2. Remove the communication interface module, if
equipped 3. Disconnect the electrical connector from the mode actuator. 4. Remove the mode
actuator screws from the evaporator case assembly. 5. Remove the mode actuator from the
evaporator case assembly.
Installation Procedure
1. Install the mode actuator to the evaporator case assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Door, HVAC > Air Door Actuator / Motor, HVAC >
Component Information > Service and Repair > Air Temperature Actuator Replacement > Page 13598
Notice: Refer to Fastener Notice.
2. Install the mode actuator screws to the evaporator case assembly.
Tighten the screws to 1.5 N.m (13 lb in).
3. Connect the electrical connector to the mode actuator. 4. Install the communication interface
module, if equipped. 5. Install the left side insulator/closeout panel.
Important: Any time a mode actuator or the HVAC control module is replaced, the HVAC control
module must be calibrated to ensure proper air distribution.
6. Calibrate the actuators. Refer to Actuators Recalibration. See: Testing and
Inspection/Programming and Relearning 7. Cycle the ignition and verify proper operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Door, HVAC > Air Door Actuator / Motor, HVAC >
Component Information > Service and Repair > Air Temperature Actuator Replacement > Page 13599
Air Door Actuator / Motor: Service and Repair Mode Cam Replacement
Mode Cam Replacement
Removal Procedure
1. Remove the left side insulator/closeout panel. 2. Remove the communication interface module, if
equipped. 3. Disconnect the electrical connector from the mode actuator. 4. Remove the mode
actuator screws from the evaporator case assembly. 5. Remove the mode actuator from the
evaporator case assembly.
6. Remove the screws retaining the mode cam bracket (1) to the evaporator case assembly. 7.
Remove the mode cam bracket (1) from the evaporator case assembly. 8. Remove the mode cam
(2) and the mode cam levers (3) from the evaporator case assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Door, HVAC > Air Door Actuator / Motor, HVAC >
Component Information > Service and Repair > Air Temperature Actuator Replacement > Page 13600
Installation Procedure
1. Install the mode cam levers (3) to the evaporator case assembly. 2. Align and install the mode
cam (2) to the mode cam levers (3). Rotate the mode cam (2) to verify mode door operation. 3.
Install the mode cam bracket (1) to the evaporator case assembly.
Notice: Refer to Fastener Notice.
4. Install the mode cam bracket screws to the evaporator case assembly.
Tighten the screws to 1.5 N.m (13 lb in).
5. Install the mode actuator to the evaporator case assembly. 6. Install the mode actuator screws to
the evaporator case assembly.
Tighten the screws to 1.5 N.m (13 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Door, HVAC > Air Door Actuator / Motor, HVAC >
Component Information > Service and Repair > Air Temperature Actuator Replacement > Page 13601
7. Connect the electrical connector to the mode actuator. 8. Install the communication interface
module, if equipped. 9. Install the left side insulator/closeout panel.
Important: Any time a mode actuator or the HVAC control module is replaced, the HVAC control
module must be calibrated to ensure proper air distribution.
10. Calibrate the actuators. Refer to Actuators Recalibration. See: Testing and
Inspection/Programming and Relearning 11. Cycle the ignition and verify proper operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Door, HVAC > Air Door Actuator / Motor, HVAC >
Component Information > Service and Repair > Air Temperature Actuator Replacement > Page 13602
Air Door Actuator / Motor: Service and Repair Recirculation Actuator Replacement
Recirculation Actuator Replacement
Removal Procedure
1. Remove the instrument panel upper trim panel. 2. Disconnect the electrical connector from the
recirculation actuator. 3. Remove the recirculation actuator screws from the HVAC module. 4.
Remove the recirculation actuator from the HVAC module.
Installation Procedure
1. Align the recirculation actuator with the door shaft and rotate into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Door, HVAC > Air Door Actuator / Motor, HVAC >
Component Information > Service and Repair > Air Temperature Actuator Replacement > Page 13603
Notice: Refer to Fastener Notice.
2. Install the recirculation actuator screws to the HVAC module.
Tighten the screws to 1.5 N.m (13 lb in).
3. Connect the electrical connector to the recirculation actuator. 4. Calibrate the actuators. Refer to
Actuators Recalibration. See: Testing and Inspection/Programming and Relearning 5. Cycle the
ignition and verify proper operation. 6. Install the instrument panel upper trim panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement
Air Duct: Service and Repair Air Inlet Assembly Replacement
Air Inlet Assembly Replacement
Removal Procedure
1. Remove the HVAC module. 2. Disconnect the electrical connector from the recirculation
actuator. 3. Remove the recirculation actuator screws. 4. Remove the recirculation actuator.
5. Remove the air inlet assembly screws. 6. Remove the air inlet assembly.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13608
1. Install the air inlet assembly.
Notice: Refer to Fastener Notice.
2. Install the air inlet assembly screws.
Tighten the screws to 1.5 N.m (13 lb in).
3. Install the recirculation actuator. 4. Install the recirculation actuator screws.
Tighten the screws to 1.5 N.m (13 lb in).
5. Install the electrical connector to the recirculation actuator. 6. Install the HVAC module.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13609
Air Duct: Service and Repair Air Outlet Duct Replacement - Center
Air Outlet Duct Replacement - Center
Removal Procedure
1. Remove the instrument panel retainer.
2. Remove the center air outlet duct push pins from the cross car beam. 3. Remove the center air
outlet duct from the cross car beam.
Installation Procedure
1. Inspect the seals, and replace if damaged, using Kent Industries adhesive backed foam tape
P/N 46485 or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13610
2. Install the center air outlet duct to the cross car beam. 3. Install the center air outlet duct push
pins to the cross car beam. 4. Install the instrument panel retainer.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13611
Air Duct: Service and Repair Air Outlet Duct Replacement - Instrument Panel (I/P) - Upper Left
Air Outlet Duct Replacement - Instrument Panel (I/P) - Upper Left
Removal Procedure
1. Remove the LH I/P trim panel. 2. Remove the LH air outlet duct screws from the instrument
panel retainer.
3. Remove the LH air outlet duct from the instrument panel retainer.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13612
1. Inspect the seals, and replace if damaged, using Kent Industries adhesive backed foam tape
P/N 46485 or equivalent. 2. Install the LH air outlet duct to the instrument panel retainer.
Notice: Refer to Fastener Notice.
3. Install the LH air outlet duct screws to the instrument panel retainer.
Tighten the screws to 1 N.m (9 lb in).
4. Install the LH I/P trim panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13613
Air Duct: Service and Repair Air Outlet Duct Replacement - Instrument Panel (I/P) - Upper Right
Air Outlet Duct Replacement - Instrument Panel (I/P) - Upper Right
Removal Procedure
1. Remove the RH I/P trim panel. 2. Remove the RH air outlet duct screws from the instrument
panel retainer.
3. Remove the RH air outlet duct from the instrument panel retainer.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13614
1. Inspect the seals, and replace if damaged, using Kent Industries adhesive backed foam tape
P/N 46485 or equivalent. 2. Install the RH air outlet duct to the instrument panel retainer.
Notice: Refer to Fastener Notice.
3. Install the RH air outlet duct screws to the instrument panel retainer.
Tighten the screws to 1 N.m (9 lb in).
4. Install the RH I/P trim panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13615
Air Duct: Service and Repair
Air Inlet Assembly Replacement
Air Inlet Assembly Replacement
Removal Procedure
1. Remove the HVAC module. 2. Disconnect the electrical connector from the recirculation
actuator. 3. Remove the recirculation actuator screws. 4. Remove the recirculation actuator.
5. Remove the air inlet assembly screws. 6. Remove the air inlet assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13616
Installation Procedure
1. Install the air inlet assembly.
Notice: Refer to Fastener Notice.
2. Install the air inlet assembly screws.
Tighten the screws to 1.5 N.m (13 lb in).
3. Install the recirculation actuator. 4. Install the recirculation actuator screws.
Tighten the screws to 1.5 N.m (13 lb in).
5. Install the electrical connector to the recirculation actuator.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13617
6. Install the HVAC module.
Air Outlet Duct Replacement - Center
Air Outlet Duct Replacement - Center
Removal Procedure
1. Remove the instrument panel retainer.
2. Remove the center air outlet duct push pins from the cross car beam. 3. Remove the center air
outlet duct from the cross car beam.
Installation Procedure
1. Inspect the seals, and replace if damaged, using Kent Industries adhesive backed foam tape
P/N 46485 or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13618
2. Install the center air outlet duct to the cross car beam. 3. Install the center air outlet duct push
pins to the cross car beam. 4. Install the instrument panel retainer.
Air Outlet Duct Replacement - Instrument Panel (I/P) - Upper Left
Air Outlet Duct Replacement - Instrument Panel (I/P) - Upper Left
Removal Procedure
1. Remove the LH I/P trim panel. 2. Remove the LH air outlet duct screws from the instrument
panel retainer.
3. Remove the LH air outlet duct from the instrument panel retainer.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13619
1. Inspect the seals, and replace if damaged, using Kent Industries adhesive backed foam tape
P/N 46485 or equivalent. 2. Install the LH air outlet duct to the instrument panel retainer.
Notice: Refer to Fastener Notice.
3. Install the LH air outlet duct screws to the instrument panel retainer.
Tighten the screws to 1 N.m (9 lb in).
4. Install the LH I/P trim panel.
Air Outlet Duct Replacement - Instrument Panel (I/P) - Upper Right
Air Outlet Duct Replacement - Instrument Panel (I/P) - Upper Right
Removal Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13620
1. Remove the RH I/P trim panel. 2. Remove the RH air outlet duct screws from the instrument
panel retainer.
3. Remove the RH air outlet duct from the instrument panel retainer.
Installation Procedure
1. Inspect the seals, and replace if damaged, using Kent Industries adhesive backed foam tape
P/N 46485 or equivalent. 2. Install the RH air outlet duct to the instrument panel retainer.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13621
Notice: Refer to Fastener Notice.
3. Install the RH air outlet duct screws to the instrument panel retainer.
Tighten the screws to 1 N.m (9 lb in).
4. Install the RH I/P trim panel.
Defroster Duct Replacement - Windshield
Defroster Duct Replacement - Windshield
Removal Procedure
1. Remove the instrument panel upper trim panel. 2. Remove the windshield defrost duct from the
HVAC module.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13622
1. Inspect the windshield defrost duct seals. If damaged, replace using Kent Industries adhesive
back foam tape P/N 46485 or equivalent. 2. Install the windshield defrost duct to the HVAC module.
3. Install the instrument panel upper trim panel.
Side Window Defogger Outlet Duct Replacement - Left Side
Side Window Defogger Outlet Duct Replacement - Left Side
Removal Procedure
1. Remove the instrument panel (I/P) upper trim panel.
2. Remove the LH defogger duct screws from the I/P upper trim panel. 3. Remove the LH defogger
duct from the I/P upper trim panel.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13623
1. Inspect the seals, and replace if damaged, using Kent Industries adhesive backed foam tape
P/N 46485 or equivalent.
2. Install the LH defogger duct to the I/P upper trim panel.
Notice: Refer to Fastener Notice.
3. Install the LH defogger duct screws to the I/P upper trim panel.
Tighten the screws to 1 N.m (9 lb in).
4. Install the instrument panel upper trim panel.
Side Window Defogger Outlet Duct Replacement - Right Side
Side Window Defogger Outlet Duct Replacement - Right Side
Removal Procedure
1. Remove the instrument panel (I/P) upper trim panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Duct > Component Information > Service and Repair >
Air Inlet Assembly Replacement > Page 13624
2. Remove the RH defogger duct screws from the I/P upper trim panel. 3. Remove the RH
defogger duct from the I/P upper trim panel.
Installation Procedure
1. Inspect the seals, and replace if damaged, using Kent Industries adhesive backed foam tape
P/N 46485 or equivalent.
2. Install the RH defogger duct to the I/P upper trim panel.
Notice: Refer to Fastener Notice.
3. Install the RH defogger duct screws to the I/P upper trim panel.
Tighten the screws to 1 N.m (9 lb in).
4. Install the instrument panel upper trim panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement
Air Register: Service and Repair Defroster Air Outlet Replacement
Defroster Air Outlet Replacement
Removal Procedure
1. Remove the instrument panel (I/P) upper trim panel.
2. Remove the defroster air outlet screws from the I/P upper trim panel. 3. Remove the defroster air
outlet from the I/P upper trim panel.
Installation Procedure
1. Inspect the seals, and replace if damaged, using Kent Industries adhesive backed foam tape
P/N 46485 or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement > Page 13629
2. Install the defroster air outlet to the I/P upper trim panel.
Notice: Refer to Fastener Notice.
3. Install the defroster air outlet screws to the I/P upper trim panel.
Tighten the screws to 1 N.m (9 lb in).
4. Install the instrument panel upper trim panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement > Page 13630
Air Register: Service and Repair Floor Air Outlet Replacement - Center
Floor Air Outlet Replacement - Center
Removal Procedure
1. Remove the shift control. 2. Slide the center floor air outlet duct forward enough to clear the rear
floor air outlet duct, and then up, and rearward to remove.
Installation Procedure
1. Slide the center floor air outlet duct forward enough to clear rear floor air duct, and then down,
and rearward to install. 2. Install the shift control.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement > Page 13631
Air Register: Service and Repair Rear Floor Air Outlet Replacement
Rear Floor Air Outlet Replacement
Removal Procedure
1. Remove the front seats. 2. Remove the floor console. 3. Partially remove the floor carpet from
the front footwells to the B-pillars. 4. Remove the rear floor air outlet push pins from the floor pan.
5. Remove the rear floor air outlet from the floor pan.
Installation Procedure
1. Install the rear floor air outlet to the floor pan. 2. Install the rear floor air outlet push pins to the
floor pan. 3. Install the floor carpet to the B-pillars and the front footwells. 4. Install the floor
console. 5. Install the front seats.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement > Page 13632
Air Register: Service and Repair Air Outlet Replacement - Instrument Panel - Center
Air Outlet Replacement - Instrument Panel - Center
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement > Page 13633
Air Register: Service and Repair
Defroster Air Outlet Replacement
Defroster Air Outlet Replacement
Removal Procedure
1. Remove the instrument panel (I/P) upper trim panel.
2. Remove the defroster air outlet screws from the I/P upper trim panel. 3. Remove the defroster air
outlet from the I/P upper trim panel.
Installation Procedure
1. Inspect the seals, and replace if damaged, using Kent Industries adhesive backed foam tape
P/N 46485 or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement > Page 13634
2. Install the defroster air outlet to the I/P upper trim panel.
Notice: Refer to Fastener Notice.
3. Install the defroster air outlet screws to the I/P upper trim panel.
Tighten the screws to 1 N.m (9 lb in).
4. Install the instrument panel upper trim panel.
Floor Air Outlet Replacement - Center
Floor Air Outlet Replacement - Center
Removal Procedure
1. Remove the shift control. 2. Slide the center floor air outlet duct forward enough to clear the rear
floor air outlet duct, and then up, and rearward to remove.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement > Page 13635
1. Slide the center floor air outlet duct forward enough to clear rear floor air duct, and then down,
and rearward to install. 2. Install the shift control.
Rear Floor Air Outlet Replacement
Rear Floor Air Outlet Replacement
Removal Procedure
1. Remove the front seats. 2. Remove the floor console. 3. Partially remove the floor carpet from
the front footwells to the B-pillars. 4. Remove the rear floor air outlet push pins from the floor pan.
5. Remove the rear floor air outlet from the floor pan.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement > Page 13636
1. Install the rear floor air outlet to the floor pan. 2. Install the rear floor air outlet push pins to the
floor pan. 3. Install the floor carpet to the B-pillars and the front footwells. 4. Install the floor
console. 5. Install the front seats.
Air Outlet Replacement - Instrument Panel - Center
Air Outlet Replacement - Instrument Panel - Center
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement > Page 13637
Air Outlet Replacement - Instrument Panel - Left
Air Outlet Replacement - Instrument Panel - Left
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement > Page 13638
Air Outlet Replacement - Instrument Panel - Right
Air Outlet Replacement - Instrument Panel - Right
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Air Register > Component Information > Service and Repair
> Defroster Air Outlet Replacement > Page 13639
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Ambient Temperature Sensor / Switch HVAC > Component
Information > Locations
Ambient Temperature Sensor / Switch HVAC: Locations
HVAC Component Views
Below the Front Impact Bar
1 - RF Headlamp 2 - Radiator 3 - Ambient Air Temperature Sensor (DH3/DF5)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Ambient Temperature Sensor / Switch HVAC > Component
Information > Locations > Page 13643
Ambient Temperature Sensor / Switch HVAC: Diagrams
HVAC Connector End Views
Ambient Air Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Blower Motor > Component Information > Locations
Blower Motor: Locations
HVAC Component Views
HVAC Module Assembly
1 - Recirculation Actuator 2 - HVAC Blower Motor 3 - Blower Motor Control Processor 4 - Air
Temperature Actuator 5 - Mode Actuator 6 - Evaporator Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Blower Motor > Component Information > Locations > Page
13647
Blower Motor: Diagrams
HVAC Connector End Views
Blower Motor Control Processor - C1
Blower Motor Control Processor - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Blower Motor > Component Information > Locations > Page
13648
HVAC Blower Motor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Blower Motor > Component Information > Locations > Page
13649
Blower Motor: Service and Repair
Blower Motor Replacement
Removal Procedure
1. Remove the right sound insulator panel. 2. Disconnect the electrical connector from the blower
motor. 3. Remove the blower motor screws from the HVAC module. 4. Remove the blower motor
from the HVAC module.
Installation Procedure
1. Install the blower motor to the HVAC module.
Notice: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Blower Motor > Component Information > Locations > Page
13650
2. Install the blower motor screws to the HVAC module.
Tighten the screws to 1.5 N.m (13 lb in).
3. Connect the electrical connector to the blower motor. 4. Install the right sound insulator panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Cabin Air Filter > Component Information > Service and
Repair > Passenger Compartment Air Filter Housing Replacement
Cabin Air Filter: Service and Repair Passenger Compartment Air Filter Housing Replacement
Passenger Compartment Air Filter Housing Replacement
Removal Procedure
1. Remove the push pins from the rear of the RH air inlet panel.
2. Open the hood. 3. Remove the push pins from the top and forward edge of the RH air inlet
panel. 4. Remove the RH air inlet panel screw.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Cabin Air Filter > Component Information > Service and
Repair > Passenger Compartment Air Filter Housing Replacement > Page 13655
5. Remove the RH air inlet panel. 6. Remove the LH air inlet panel.
7. Remove the filter housing nuts from the vehicle. 8. Remove the filter housing from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Cabin Air Filter > Component Information > Service and
Repair > Passenger Compartment Air Filter Housing Replacement > Page 13656
1. Inspect the foam seal. If the seal is damaged, replace the seal using Kent Industries adhesive
back foam tape P/N 46485 (or equivalent). 2. Install the filter housing to the vehicle.
Notice: Refer to Fastener Notice.
Important: New seal nuts must be used when installing passenger compartment air filter housing to
prevent leaks.
3. Install the new seal nuts to the filter housing.
Tighten the nuts to 9 N.m (80 lb in).
4. Install the LH air inlet panel. 5. Install the RH air inlet panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Cabin Air Filter > Component Information > Service and
Repair > Passenger Compartment Air Filter Housing Replacement > Page 13657
6. Install the push pins and screw to the top and forward edge of the RH air inlet panel. 7. Close the
hood.
8. Install the push pins to the rear of the RH air inlet panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Cabin Air Filter > Component Information > Service and
Repair > Passenger Compartment Air Filter Housing Replacement > Page 13658
Cabin Air Filter: Service and Repair Passenger Compartment Air Filter Replacement
Passenger Compartment Air Filter Replacement
Removal Procedure
1. Remove the push pins from the rear of the RH air inlet panel.
2. Open the hood. 3. Remove the push pins from the top and forward edge of the RH air inlet
panel. 4. Remove the RH air inlet panel screw.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Cabin Air Filter > Component Information > Service and
Repair > Passenger Compartment Air Filter Housing Replacement > Page 13659
5. Remove the RH air inlet panel.
6. Remove the filter from the filter housing by depressing the release tab at the inboard edge of the
filter housing. 7. Remove the filter from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Cabin Air Filter > Component Information > Service and
Repair > Passenger Compartment Air Filter Housing Replacement > Page 13660
1. Install the filter to the vehicle.
2. Install the RH air inlet panel. 3. Install the RH air inlet panel screw.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Cabin Air Filter > Component Information > Service and
Repair > Passenger Compartment Air Filter Housing Replacement > Page 13661
4. Install the push pins to the top and forward edge of the RH air inlet panel. 5. Close the hood.
6. Install the push pins to the rear of the RH air inlet panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Compressor HVAC > Compressor Clutch > Component
Information > Specifications
Compressor Clutch: Specifications
Clutch Gap............................................................................................................................................
.......................................0.3-0.6 mm (0.012-0.024 in)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Compressor HVAC > Compressor Clutch > Component
Information > Specifications > Page 13666
Compressor Clutch: Diagrams
HVAC Connector End Views
A/C Compressor Clutch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Compressor HVAC > Compressor Clutch > Component
Information > Specifications > Page 13667
Compressor Clutch: Service and Repair
Compressor Clutch Assembly Replacement
Tools Required
* J 25031-A Three Jaw Puller
* J 37872 Universal Spanner Wrench
* GE-47849 Clutch Remover
* GE-47850 Center Puller
* GE-47851 Armature Replacer
Removal Procedure
1. Remove the compressor from the vehicle.
2. Use J 37872 to hold the compressor clutch.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Compressor HVAC > Compressor Clutch > Component
Information > Specifications > Page 13668
3. Remove the bolt retaining the compressor clutch to the compressor.
4. Install GE-47849 to the compressor clutch. 5. Using GE-47849, remove the compressor clutch
from the compressor. 6. Remove the compressor clutch shims from the compressor shaft.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Compressor HVAC > Compressor Clutch > Component
Information > Specifications > Page 13669
7. Remove the snap ring from the compressor pulley. 8. Using GE-47850 with J 25031-A, remove
the compressor pulley from the compressor.
9. Remove the clutch field coil connector bracket screw from the compressor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Compressor HVAC > Compressor Clutch > Component
Information > Specifications > Page 13670
10. Remove the clutch field coil screws from the compressor.
11. Remove the clutch field coil from the compressor.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Compressor HVAC > Compressor Clutch > Component
Information > Specifications > Page 13671
1. Clean the clutch field coil and the pulley mounting surfaces. 2. Install the clutch field coil to the
compressor.
Notice: Refer to Fastener Notice.
3. Install the clutch field coil screws to the compressor.
Tighten the screws to 4.9 N.m (43 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Compressor HVAC > Compressor Clutch > Component
Information > Specifications > Page 13672
4. Install the clutch field coil connector bracket screw to the compressor.
Tighten the screws to 4.3 N.m (38 lb in).
5. Using GE-47851, install the compressor pulley to the compressor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Compressor HVAC > Compressor Clutch > Component
Information > Specifications > Page 13673
Important: Ensure that the compressor pulley snap ring is installed with the rounded edge face up.
6. Install the snap ring to the compressor pulley. 7. Install the compressor clutch shims to the
compressor shaft. 8. Align the compressor clutch with the compressor shaft and install to the
compressor.
9. Using GE-47851, install the compressor clutch to the compressor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Compressor HVAC > Compressor Clutch > Component
Information > Specifications > Page 13674
10. Using a feeler gage, check the clearance between the compressor clutch and the compressor
pulley. Ensure the clearance is 0.3 mm to 0.6 mm
(0.012 in to 0.024 in).
11. Once the correct air gap is obtained, install the new clutch bolt. 12. Using J 37872 to hold the
compressor clutch, tighten the clutch bolt.
Tighten the bolt to 21 N.m (16 lb ft).
13. After the clutch bolt is installed, verify that the compressor pulley spins freely. 14. Install the
compressor to the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Condenser HVAC > Component Information > Service and
Repair
Condenser HVAC: Service and Repair
Condenser Replacement
Tools Required
J 39400-A Halogen Leak Detector
Removal Procedure
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Service and
Repair/Refrigerant Recovery and Recharging 2. Remove the front fascia. 3. For Pontiac models,
remove the hood latch. Refer to Hood Latch Replacement (Equinox) Hood Latch Replacement
(Torrent).
4. Remove the battery box air duct.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Condenser HVAC > Component Information > Service and
Repair > Page 13678
5. Remove the condenser radiator fan module (CRFM) closeout panel.
6. Remove the liquid line nut from the condenser. 7. Remove the liquid line from the condenser. 8.
Install a protective cap to the liquid line to prevent contamination and desiccant saturation.
9. Remove the compressor hose nut from the condenser.
10. Remove the compressor hose from the condenser. 11. Install a protective cap to the
compressor hose to prevent contamination and desiccant saturation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Condenser HVAC > Component Information > Service and
Repair > Page 13679
12. Remove the CRFM bracket bolts from the radiator support. 13. Remove the CRFM brackets
from the vehicle.
14. Remove the bolts retaining the top of the condenser to the radiator. 15. Remove the condenser
from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Condenser HVAC > Component Information > Service and
Repair > Page 13680
1. Add the specified amount of PAG oil to the condenser. Refer to Refrigerant System Capacities.
2. Inspect the radiator to condenser seals for the proper position. 3. Install the condenser to the
lower retention clips on the radiator.
Notice: Refer to Fastener Notice.
4. Install the bolts to retain the top of the condenser to the radiator.
Tighten the bolts to 9 N.m (80 lb in).
5. Install the CRFM brackets to the vehicle. 6. Install the CRFM bracket bolts to the radiator
support.
Tighten the bolts to 20 N.m (15 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Condenser HVAC > Component Information > Service and
Repair > Page 13681
7. Remove the protective cap from the compressor hose. 8. Install a new sealing washer to the
compressor hose. 9. Install the compressor hose to the condenser.
10. Install compressor hose nut to the condenser.
Tighten the nut to 20 N.m (15 lb ft).
11. Install a new seal washer to the liquid line. 12. Install the liquid line to the condenser. 13. Install
the liquid line nut to the condenser.
Tighten the nut to 20 N.m (15 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Condenser HVAC > Component Information > Service and
Repair > Page 13682
14. Install the CRFM closeout panel.
15. Install the battery box air duct. 16. For Pontiac models, install the hood latch assembly. Refer to
Hood Latch Replacement (Equinox) Hood Latch Replacement (Torrent). 17. Install the front fascia.
18. Evacuate and charge the A/C system. Refer to Refrigerant Recovery and Recharging. See:
Service and Repair/Refrigerant Recovery and
Recharging
19. Test the affected A/C joints leaks using J 39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Control Assembly, HVAC > Component Information >
Technical Service Bulletins > A/C - Indicators Flashing (Normal Condition)
Control Assembly: Technical Service Bulletins A/C - Indicators Flashing (Normal Condition)
Bulletin No.: 07-01-38-003
Date: June 12, 2007
INFORMATION
Subject: Information for Vehicles with HVAC Control Module A/C And Recirculation Indicators
Flashing
Models: 2008 Buick Enclave 2007-2008 Cadillac Escalade Models 2006-2007 Chevrolet Monte
Carlo 2006-2008 Chevrolet Impala 2007-2008 Chevrolet Avalanche, Equinox, Silverado, Suburban,
Tahoe 2007-2008 GMC Acadia, Sierra, Yukon Models 2007-2008 Pontiac Torrent 2008 HUMMER
H2 2007-2008 Saturn OUTLOOK 2008 Saturn VUE
Condition/Concern
Some customers may comment that the Air Conditioning (A/C) indicator on the Heating Ventilation
and Air Conditioning (HVAC) Control Module flashes then turns off after they press the A/C button.
Others may comment that the Recirculation indicator on the HVAC Control Module flashes then
turns off after they press the Recirculation button.
This is normal operation for the HVAC Control Module and indicates that the A/C or Recirculation
function is not available at this time.
Reasons that the A/C may not be available (calibrated values vary by program) are listed below.
Consult the appropriate vehicle Service Information (SI) for detailed HVAC Description and
Operation:
Ambient Air Temperature is too low (if equipped with Ambient Air Temperature Sensor)
Vehicle voltage less than 9.5 volts
Refrigerant Pressure too low
Refrigerant Pressure too high
Engine Coolant Temperature too high
Engine is not in RUN
HVAC Control Head is in the OFF position
Reasons Recirculation may not be available: Mode switch in Floor, Defog or Defrost mode.
The reason(s) A/C is currently disabled can be viewed with a Tech 2(R) by navigating to HVAC
Data display and viewing the "A/C Permission" parameter.
Recommendation/Instructions
Do not replace the HVAC Control Module for a flashing A/C Indicator or flashing Recirculation
Indicator, as this is normal operation.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Control Assembly, HVAC > Component Information >
Technical Service Bulletins > Page 13687
Control Assembly: Service and Repair
HVAC Control Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Control Module HVAC > Component Information >
Locations
Control Module HVAC: Locations
HVAC Component Views
Instrument Panel
1 - Ambient Light Sensor 2 - Instrument Panel Cluster (IPC) 3 - Driver Information Center (DIC)
Switch 4 - Hazard Switch 5 - Inflatable Restraint Passenger Air Bag ON/OFF Indicator 6 - Rear
Wiper/Washer Switch 7 - Radio 8 - HVAC Control Module 9 - Heated Seat Switches 10 - Power
Window Switch - Main
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Control Module HVAC > Component Information >
Locations > Page 13691
11 - Traction Control Switch 12 - Dimmer Switch 13 - Outside Rear View Mirror Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Control Module HVAC > Component Information >
Locations > Page 13692
Control Module HVAC: Diagrams
HVAC Connector End Views
HVAC Control Module - C1
HVAC Control Module - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Control Module HVAC > Component Information >
Locations > Page 13693
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Control Module HVAC > Component Information >
Locations > Page 13694
Control Module HVAC: Service and Repair
Blower Motor Control Module Replacement
Removal Procedure
1. Disconnect the electrical connector from the blower motor control module.
2. Remove the blower control module screws from the HVAC module.
3. Remove the blower motor control module from the HVAC module.
Installation Procedure
1. Install the blower motor control module to the HVAC module.
Notice: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Control Module HVAC > Component Information >
Locations > Page 13695
2. Install the blower motor control module screws to the HVAC module.
Tighten the screws to 1.5 N.m (13 lb in).
3. Connect the electrical connector to the blower motor control module.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Coupler HVAC > A/C Coupler O-ring > Component
Information > Service and Repair > Sealing Washer Replacement
A/C Coupler O-ring: Service and Repair Sealing Washer Replacement
Sealing Washer Replacement
Removal Procedure
1. Remove the seal washer from the A/C refrigerant component.
Important: Cap or tape the open A/C refrigerant components immediately to prevent system
contamination.
2. Inspect the seal washer for signs of damage to help determine the root cause of the failure. 3.
Inspect the A/C refrigerant components for damage or burrs. Repair if necessary.
Important: DO NOT reuse sealing washer.
4. Discard the sealing washer.
Installation Procedure
Important: Flat washer type seals do not require lubrication.
1. Inspect the new seal washer for any signs of cracks, cuts, or damage.
Do not use a damaged seal washer.
2. Remove the cap or tape from the A/C refrigerant components.
3. Using a lint-free clean, dry cloth, clean the sealing surfaces of the A/C refrigerant components. 4.
Carefully install the new seal washer onto the A/C refrigerant component.
The washer must completely bottom against the surface of the fitting.
Important: After tightening the A/C components, there should be a slight sealing washer gap of
approximately 1.2 mm (3/64 in) between the A/C line and the A/C component.
5. Assemble the remaining A/C refrigerant components. Refer to the appropriate repair procedure.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Coupler HVAC > A/C Coupler O-ring > Component
Information > Service and Repair > Sealing Washer Replacement > Page 13701
A/C Coupler O-ring: Service and Repair O-Ring Replacement
O-Ring Replacement
Removal Procedure
1. Disassemble the A/C refrigerant components. Refer to the appropriate repair procedure
* For compression style fittings use a back up wrench on the fitting (2) and loosen the fitting nut (1).
* For banjo style fittings remove the bolt retaining the banjo type fitting.
2. Remove the O-ring seal from the A/C refrigerant component. 3. Inspect the O-ring seal for signs
of damage to help determine the root cause of the failure. 4. Inspect the A/C refrigerant
components for damage or burrs. Repair if necessary.
Important: Cap or tape the open A/C refrigerant components immediately to prevent system
contamination.
5. Cap or tape the A/C refrigerant components. 6. Discard the O-ring seal.
Installation Procedure
1. Inspect the new O-ring seal for any sign or cracks, cuts, or damage. Replace if necessary. 2.
Remove the cap or tape from the A/C refrigerant components. 3. Using a lint-free clean, dry cloth,
carefully clean the sealing surfaces of the A/C refrigerant components.
Important: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the new O-ring
seal to enter the refrigerant system.
4. Lightly coat the new O-ring seal with mineral base 525 viscosity refrigerant oil.
Important: DO NOT reuse O-ring seals.
5. Carefully slide the new O-ring seal onto the A/C refrigerant component.
6. The O-ring seal must be fully seated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Coupler HVAC > A/C Coupler O-ring > Component
Information > Service and Repair > Sealing Washer Replacement > Page 13702
7. Assemble the A/C components.
Refer to the appropriate repair procedure.
* For compression style fittings use a back up wrench on the fitting (2) and tighten the fitting nut (1)
to specification.
* For banjo style fittings install the bolt retaining the banjo type fitting and tighten to specification.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Case > Component Information > Service and
Repair
Evaporator Case: Service and Repair
Air Conditioning (A/C) Evaporator Case Assembly Replacement
Removal Procedure
1. Remove the HVAC module.
2. Remove the heater core cover screws from the evaporator case assembly. 3. Remove the
heater core cover from the evaporator case assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Case > Component Information > Service and
Repair > Page 13706
4. Remove the heater core from the HVAC module.
5. Remove the evaporator case assembly screws from the blower case assembly. 6. Remove the
evaporator case assembly from the blower case assembly.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Case > Component Information > Service and
Repair > Page 13707
1. Install evaporator case assembly to the blower case assembly.
Notice: Refer to Fastener Notice.
2. Install evaporator case assembly screws to the blower case assembly.
Tighten the screws to 1.5 N.m (13 lb in).
3. Install heater core to the HVAC module.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Case > Component Information > Service and
Repair > Page 13708
4. Install heater core cover. 5. Install heater core cover screws.
Tighten the screws to 1.5 N.m (13 lb in).
6. Install the HVAC module.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Core > Component Information > Technical
Service Bulletins > Customer Interest for Evaporator Core: > 99-01-39-004C > Jun > 09 > A/C - Musty Odors Emitted From
(HVAC) System
Evaporator Core: Customer Interest A/C - Musty Odors Emitted From (HVAC) System
TECHNICAL
Bulletin No.: 99-01-39-004C
Date: June 12, 2009
Subject: Air Conditioning Odor (Install Evaporator Core Dryer Kit and Apply Cooling Coil Coating)
Models:
1993-2010 GM Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2, H3 All
Equipped with Air Conditioning
Supercede: This bulletin is being revised to add the 2009 and 2010 model years. Please discard
Corporate Bulletin Number 99-01-39-004B (Section 01 - HVAC).
Condition
Some customers may comment about musty odors emitted from the Heating, Ventilation and Air
Conditioning (HVAC) system at vehicle start-up in hot, humid conditions.
Cause
This condition may be caused by condensate build-up on the evaporator core, which does not
evaporate by itself in high humidity conditions. The odor may be the result of microbial growth on
the evaporator core. When the blower motor fan is turned on, the microbial growth may release an
unpleasant musty odor into the passenger compartment.
There are several other possible sources of a musty odor in a vehicle. A common source is a water
leak into the interior of the vehicle or foreign material in the HVAC air distribution system. Follow
the procedures in SI for identifying and correcting water leaks and air inlet inspection.
The procedure contained in this bulletin is only applicable if the odor source has been determined
to be microbial growth on the evaporator core inside the HVAC module.
Correction
Many vehicles currently incorporate an afterblow function within the HVAC control module
software. The afterblow feature, when enabled, employs the HVAC blower fan to dry the
evaporator after vehicle shut down and this function will inhibit microbial growth. Technicians are to
confirm that the customer concern is evaporator core odor and that the vehicle has the imbedded
afterblow feature, as defined in the SI document for that specific vehicle model, model year and
specific HVAC option. Refer to SI for enabling the afterblow function. Vehicles being delivered in
areas prone to high humidity conditions may benefit from having the afterblow enabled calibration
installed prior to any customer comment.
Important If the vehicle is not factory equipped with the imbedded afterblow enable feature, it may
be added with the Electronic Evaporator Dryer Module Kit (P/N 12497910 or AC Delco 15-5876).
Important When installing the Electronic Evaporator Dryer Module, you MUST use the included
electrical splice connectors to ensure a proper splice. Complete detailed installation instructions
and self testing procedures are supplied with the kit. If necessary, the Electronic Evaporator Dryer
Module may be installed underhood if it is protected from extreme heat and water splash areas.
To immediately remove the evaporator core odor on all suspect vehicles, it is necessary to
eliminate the microbial growth and prevent its re-occurrence. To accomplish this, perform the
following procedure:
Vehicle and Applicator Tool Preparation
1. The evaporator core must be dry. This may be accomplished by disabling the compressor and
running the blower fan on the recirc heat setting for
an extended period of time.
Note Compressor engagement will cause the evaporator core to remain wet and will prevent full
adherence of the Coiling Coil Coating to the evaporator core surfaces.
2. Verify that the air conditioning drain hose is not clogged and place a drain pan beneath the
vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Core > Component Information > Technical
Service Bulletins > Customer Interest for Evaporator Core: > 99-01-39-004C > Jun > 09 > A/C - Musty Odors Emitted From
(HVAC) System > Page 13717
3. Place a protective cover over the carpet below the evaporator core. 4. Remove the cabin air
filter, if equipped, and cover the opening prior to applying the Cooling Coil Coating, as the product
may clog the filter. If the
cabin air filter appears to have little or no remaining life, suggest a replacement to your customer.
5. If the HVAC module has a blower motor cooling tube, be careful NOT TO SPRAY THE
COOLING COIL COATING INTO THE
BLOWER MOTOR COOLING TUBE.
6. Attach the Flexible Applicator Pressure Spray Tool (J-43810-20A) to a compressed air line
operating at 586 kPa (85 psi) to 793 kPa (115 psi). 7. Shake the bottle of Cooling Coil Coating well.
Screw the bottle onto the cap on the applicator tool's pick-up tube.
Note The pick-up tube is designed for 120 ml (4 oz) and 240 ml (8 oz) bottles and should coil
slightly in the bottom of a 120 ml (4 oz) bottle.
8. Use one of the following three methods to apply the Cooling Coil Coating.
Important If the Pressure Applicator Spray Tool (J-43810-20A) is not available, the Cooling Coil
Coating is also available in an aerosol can (P/N 12377951 (in Canada, 10953503)).
Application Through Blower Motor Control Module Opening
- Remove the blower motor control module (blower motor resistor). Refer to the applicable
procedure in SI.
- Clean any debris or foreign material from inside the HVAC module and on the evaporator core
surface.
- Apply the Cooling Coil Coating directly to the evaporator core through the blower motor blower
motor control module (blower motor resistor) opening.
- Use the flexible wand to direct the Cooling Coil Coating over the entire evaporator core and
surrounding gasket surfaces.
- When the application is complete, install the blower motor blower motor control module (blower
motor control module).
Application Through Blower Motor Opening
- Remove the blower motor. Refer to the applicable blower motor removal procedure in SI.
- Clean any debris or foreign material from inside the HVAC module and on the evaporator core
surface.
- Apply the Cooling Coil Coating directly to the evaporator core through the blower motor opening.
- Use the flexible wand to direct the Cooling Coil Coating over the entire evaporator core and
surrounding gasket surfaces.
- When the application is complete, install the blower motor.
Application Through a Hole in the HVAC Module
- If neither of the two previous application methods are available, it may be necessary to drill a hole
in the HVAC module.
- Locate an area of the HVAC module between the blower motor and the evaporator core. Drill a 10
mm (3/8 in) hole in the HVAC module. Use caution to keep the drill clear of the evaporator core and
the blower motor fan.
- With the air distribution vents closed and the blower motor fan speed on HIGH, insert the
applicator tool into the hole and spray the Cooling Coil Coating into the airstream toward the
evaporator core.
- Use a GM approved RTV sealant to plug the hole in the HVAC module.
9. After the Cooling Coil Coating application is complete, start and run the vehicle for approximately
10 minutes, with the compressor disabled,
HVAC mode set to Recirculate/Max, heat set to full warm, blower motor fan speed on high, and
one window open approximately 12 mm (1/2 in). This cures the Cooling Coil Coating onto the
evaporator core surface.
10. While the engine is running, rinse the applicator tool with warm water to prolong the life of the
tool. Be sure to spray warm water through the
nozzle to rinse out any residual Cooling Coil Coating still in the capillary pick up tube, otherwise it
will dry and clog the applicator tool. Also remove the small green valve from the bottle cap and
rinse it thoroughly while rolling it between two fingers and then reinstall it. If this valve is clogged ,
the Cooling Coil Coating will not flow through the applicator tool.
11. Shut off the engine and enable the compressor again. 12. Verify proper HVAC system
operation. 13. Remove the protective cover from inside the vehicle. 14. Remove the drain pan from
underneath the vehicle. 15. Reinstall the cabin air filter if necessary.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Core > Component Information > Technical
Service Bulletins > Customer Interest for Evaporator Core: > 99-01-39-004C > Jun > 09 > A/C - Musty Odors Emitted From
(HVAC) System > Page 13718
Parts Information
Important The Cooling Coil Coating listed below is the only GM approved product for use under
warranty as an evaporator core disinfectant and for the long term control of evaporator core
microbial growth.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Core > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Evaporator Core: > 99-01-39-004C > Jun > 09 > A/C - Musty Odors
Emitted From (HVAC) System
Evaporator Core: All Technical Service Bulletins A/C - Musty Odors Emitted From (HVAC) System
TECHNICAL
Bulletin No.: 99-01-39-004C
Date: June 12, 2009
Subject: Air Conditioning Odor (Install Evaporator Core Dryer Kit and Apply Cooling Coil Coating)
Models:
1993-2010 GM Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2, H3 All
Equipped with Air Conditioning
Supercede: This bulletin is being revised to add the 2009 and 2010 model years. Please discard
Corporate Bulletin Number 99-01-39-004B (Section 01 - HVAC).
Condition
Some customers may comment about musty odors emitted from the Heating, Ventilation and Air
Conditioning (HVAC) system at vehicle start-up in hot, humid conditions.
Cause
This condition may be caused by condensate build-up on the evaporator core, which does not
evaporate by itself in high humidity conditions. The odor may be the result of microbial growth on
the evaporator core. When the blower motor fan is turned on, the microbial growth may release an
unpleasant musty odor into the passenger compartment.
There are several other possible sources of a musty odor in a vehicle. A common source is a water
leak into the interior of the vehicle or foreign material in the HVAC air distribution system. Follow
the procedures in SI for identifying and correcting water leaks and air inlet inspection.
The procedure contained in this bulletin is only applicable if the odor source has been determined
to be microbial growth on the evaporator core inside the HVAC module.
Correction
Many vehicles currently incorporate an afterblow function within the HVAC control module
software. The afterblow feature, when enabled, employs the HVAC blower fan to dry the
evaporator after vehicle shut down and this function will inhibit microbial growth. Technicians are to
confirm that the customer concern is evaporator core odor and that the vehicle has the imbedded
afterblow feature, as defined in the SI document for that specific vehicle model, model year and
specific HVAC option. Refer to SI for enabling the afterblow function. Vehicles being delivered in
areas prone to high humidity conditions may benefit from having the afterblow enabled calibration
installed prior to any customer comment.
Important If the vehicle is not factory equipped with the imbedded afterblow enable feature, it may
be added with the Electronic Evaporator Dryer Module Kit (P/N 12497910 or AC Delco 15-5876).
Important When installing the Electronic Evaporator Dryer Module, you MUST use the included
electrical splice connectors to ensure a proper splice. Complete detailed installation instructions
and self testing procedures are supplied with the kit. If necessary, the Electronic Evaporator Dryer
Module may be installed underhood if it is protected from extreme heat and water splash areas.
To immediately remove the evaporator core odor on all suspect vehicles, it is necessary to
eliminate the microbial growth and prevent its re-occurrence. To accomplish this, perform the
following procedure:
Vehicle and Applicator Tool Preparation
1. The evaporator core must be dry. This may be accomplished by disabling the compressor and
running the blower fan on the recirc heat setting for
an extended period of time.
Note Compressor engagement will cause the evaporator core to remain wet and will prevent full
adherence of the Coiling Coil Coating to the evaporator core surfaces.
2. Verify that the air conditioning drain hose is not clogged and place a drain pan beneath the
vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Core > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Evaporator Core: > 99-01-39-004C > Jun > 09 > A/C - Musty Odors
Emitted From (HVAC) System > Page 13724
3. Place a protective cover over the carpet below the evaporator core. 4. Remove the cabin air
filter, if equipped, and cover the opening prior to applying the Cooling Coil Coating, as the product
may clog the filter. If the
cabin air filter appears to have little or no remaining life, suggest a replacement to your customer.
5. If the HVAC module has a blower motor cooling tube, be careful NOT TO SPRAY THE
COOLING COIL COATING INTO THE
BLOWER MOTOR COOLING TUBE.
6. Attach the Flexible Applicator Pressure Spray Tool (J-43810-20A) to a compressed air line
operating at 586 kPa (85 psi) to 793 kPa (115 psi). 7. Shake the bottle of Cooling Coil Coating well.
Screw the bottle onto the cap on the applicator tool's pick-up tube.
Note The pick-up tube is designed for 120 ml (4 oz) and 240 ml (8 oz) bottles and should coil
slightly in the bottom of a 120 ml (4 oz) bottle.
8. Use one of the following three methods to apply the Cooling Coil Coating.
Important If the Pressure Applicator Spray Tool (J-43810-20A) is not available, the Cooling Coil
Coating is also available in an aerosol can (P/N 12377951 (in Canada, 10953503)).
Application Through Blower Motor Control Module Opening
- Remove the blower motor control module (blower motor resistor). Refer to the applicable
procedure in SI.
- Clean any debris or foreign material from inside the HVAC module and on the evaporator core
surface.
- Apply the Cooling Coil Coating directly to the evaporator core through the blower motor blower
motor control module (blower motor resistor) opening.
- Use the flexible wand to direct the Cooling Coil Coating over the entire evaporator core and
surrounding gasket surfaces.
- When the application is complete, install the blower motor blower motor control module (blower
motor control module).
Application Through Blower Motor Opening
- Remove the blower motor. Refer to the applicable blower motor removal procedure in SI.
- Clean any debris or foreign material from inside the HVAC module and on the evaporator core
surface.
- Apply the Cooling Coil Coating directly to the evaporator core through the blower motor opening.
- Use the flexible wand to direct the Cooling Coil Coating over the entire evaporator core and
surrounding gasket surfaces.
- When the application is complete, install the blower motor.
Application Through a Hole in the HVAC Module
- If neither of the two previous application methods are available, it may be necessary to drill a hole
in the HVAC module.
- Locate an area of the HVAC module between the blower motor and the evaporator core. Drill a 10
mm (3/8 in) hole in the HVAC module. Use caution to keep the drill clear of the evaporator core and
the blower motor fan.
- With the air distribution vents closed and the blower motor fan speed on HIGH, insert the
applicator tool into the hole and spray the Cooling Coil Coating into the airstream toward the
evaporator core.
- Use a GM approved RTV sealant to plug the hole in the HVAC module.
9. After the Cooling Coil Coating application is complete, start and run the vehicle for approximately
10 minutes, with the compressor disabled,
HVAC mode set to Recirculate/Max, heat set to full warm, blower motor fan speed on high, and
one window open approximately 12 mm (1/2 in). This cures the Cooling Coil Coating onto the
evaporator core surface.
10. While the engine is running, rinse the applicator tool with warm water to prolong the life of the
tool. Be sure to spray warm water through the
nozzle to rinse out any residual Cooling Coil Coating still in the capillary pick up tube, otherwise it
will dry and clog the applicator tool. Also remove the small green valve from the bottle cap and
rinse it thoroughly while rolling it between two fingers and then reinstall it. If this valve is clogged ,
the Cooling Coil Coating will not flow through the applicator tool.
11. Shut off the engine and enable the compressor again. 12. Verify proper HVAC system
operation. 13. Remove the protective cover from inside the vehicle. 14. Remove the drain pan from
underneath the vehicle. 15. Reinstall the cabin air filter if necessary.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Core > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Evaporator Core: > 99-01-39-004C > Jun > 09 > A/C - Musty Odors
Emitted From (HVAC) System > Page 13725
Parts Information
Important The Cooling Coil Coating listed below is the only GM approved product for use under
warranty as an evaporator core disinfectant and for the long term control of evaporator core
microbial growth.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Core > Component Information > Technical
Service Bulletins > Page 13726
Evaporator Core: Service and Repair
Evaporator Core Replacement
1. Remove the HVAC module. 2. Remove the evaporator case assembly. 3. Remove the thermal
expansion valve (TXV) bolts from the backing plate. 4. Remove the TXV and the backing plate from
the evaporator pipes. 5. Remove the seal washers from evaporator pipes.
6. Remove the HVAC module front of dash seal.
7. Remove the screws retaining the two halves of the blower case assembly. 8. Separate the two
halves of the blower case assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Core > Component Information > Technical
Service Bulletins > Page 13727
9. Remove the evaporator core from the blower case assembly.
Installation Procedure
1. Add the proper of polyalkylene glycol (PAG) oil to the evaporator core. Refer to Refrigerant
System Capacities. 2. Inspect the seal around the evaporator core. Make sure the seal is in correct
position and retained properly. 3. Install the evaporator core to the blower case assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Core > Component Information > Technical
Service Bulletins > Page 13728
4. Assemble the two halves of the blower case assembly.
Notice: Refer to Fastener Notice.
5. Install the blower case assembly screws.
Tighten the screw to 1.5 N.m (13 lb in).
6. Install the HVAC module front of dash seal.
7. Install new seal washers to the evaporator pipes. 8. Instal the TXV and the backing plate to the
evaporator pipes. 9. Install the TXV screws to the backing plate.
Tighten the screws to 3.5 N.m (31 lb in).
10. Install the evaporator case assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Core > Component Information > Technical
Service Bulletins > Page 13729
11. Install the HVAC module.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Evaporator Temperature Sensor / Switch > Component
Information > Locations
Evaporator Temperature Sensor / Switch: Locations
HVAC Component Views
HVAC Module Assembly
1 - Recirculation Actuator 2 - HVAC Blower Motor 3 - Blower Motor Control Processor 4 - Air
Temperature Actuator 5 - Mode Actuator 6 - Evaporator Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Expansion Valve > Component Information > Service and
Repair
Expansion Valve: Service and Repair
Thermal Expansion Valve Replacement
Tools Required
J 39400-A Halogen Leak Detector
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Service and
Repair/Refrigerant Recovery and Recharging
Important: When removing the thermal expansion valve (TXV), keep dirt and foreign material from
getting on or into the sealing surfaces. Clean tools and a clean work area are important for proper
service. The TXV seal area should be cleaned before any repairs are performed. The parts must
be kept clean at all times and any parts to be assembled should be cleaned with a non-petroleum
based solvent and dried with air. Use only lint free cloths to wipe parts. Do not allow solvent to
enter evaporator or hoses.
2. Remove the evaporator outlet hose and liquid line retainer plate nut from the TXV. 3. Remove
the evaporator outlet hose and liquid line from the TXV. 4. Remove and discard the sealing
washers from the evaporator outlet hose and liquid line. 5. Install protective caps to the evaporator
outlet hose and the liquid line to prevent contamination and desiccant saturation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Expansion Valve > Component Information > Service and
Repair > Page 13736
6. Remove the TXV bolts from the backing plate. 7. Remove the TXV and the backing plate from
the vehicle. 8. Remove and discard the seal washers from the evaporator pipes. 9. Install a
protective cap to the evaporator pipes to prevent contamination and desiccant saturation.
Installation Procedure
Important: Use only lint free cloths to wipe parts. Do not allow any solvent to enter evaporator or
hoses.
1. Remove the protective caps from the evaporator pipes and ensure the seal areas are clean, dry
and lint free. 2. Install new seal washers to the evaporator pipes. 3. Remove the protective caps
from the TXV. 4. Install the TXV and the backing plate to the evaporator pipes.
Notice: Refer to Fastener Notice.
5. Install the TXV bolts to the backing plate.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Expansion Valve > Component Information > Service and
Repair > Page 13737
Tighten the bolts to 3.5 N.m (31 lb in).
6. Remove the protective caps from the liquid line and the evaporator outlet hose. 7. Install new
seal washers to the liquid line and the evaporator outlet hose. 8. Install the liquid line and the
evaporator outlet hose to the TXV. 9. Install the liquid line and evaporator outlet hose retainer plate
nut to the TXV.
Tighten the nut to 20 N.m (15 lb ft).
10. Evacuate and charge the A/C system. Refer to Refrigerant Recovery and Recharging. See:
Service and Repair/Refrigerant Recovery and
Recharging
11. Test the affected A/C joints for leaks using J 39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Heater Core > Component Information > Technical Service
Bulletins > Cooling System, A/C - Aluminum Heater Cores/Radiators
Heater Core: Technical Service Bulletins Cooling System, A/C - Aluminum Heater Cores/Radiators
INFORMATION
Bulletin No.: 05-06-02-001A
Date: July 16, 2008
Subject: Information On Aluminum Heater Core and/or Radiator Replacement
Models: 2005 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2005
HUMMER H2
Supercede:
This bulletin is being revised to update the Warranty Information. Please discard Corporate Bulletin
Number 05-06-02-001 (Section 06 - Engine/Propulsion System).
Important:
2004-05 Chevrolet Aveo (Pontiac Wave, Canada Only) does not use DEX-COOL(R). Refer to the
flushing procedure explained later in this bulletin.
The following information should be utilized when servicing aluminum heater core and/or radiators
on repeat visits. A replacement may be necessary because erosion, corrosion, or insufficient
inhibitor levels may cause damage to the heater core, radiator or water pump. A coolant check
should be performed whenever a heater core, radiator, or water pump is replaced. The following
procedures/ inspections should be done to verify proper coolant effectiveness.
Caution:
To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot.
The cooling system will release scalding fluid and steam under pressure if the radiator cap or surge
tank cap is removed while the engine and radiator are still hot.
Important:
If the vehicle's coolant is low, drained out, or the customer has repeatedly added coolant or water
to the system, then the system should be completely flushed using the procedure explained later in
this bulletin.
Technician Diagnosis
^ Verify coolant concentration. A 50% coolant/water solution ensures proper freeze and corrosion
protection. Inhibitor levels cannot be easily measured in the field, but can be indirectly done by the
measurement of coolant concentration. This must be done by using a Refractometer J 23688
(Fahrenheit scale) or J 26568 (centigrade scale), or equivalent, coolant tester. The Refractometer
uses a minimal amount of coolant that can be taken from the coolant recovery reservoir, radiator or
the engine block. Inexpensive gravity float testers (floating balls) will not completely analyze the
coolant concentration fully and should not be used. The concentration levels should be between
50% and 65% coolant concentrate. This mixture will have a freeze point protection of -34 degrees
Fahrenheit (-37 degrees Celsius). If the concentration is below 50%, the cooling system must be
flushed.
^ Inspect the coolant flow restrictor if the vehicle is equipped with one. Refer to Service Information
(SI) and/or the appropriate Service Manual for component location and condition for operation.
^ Verify that no electrolysis is present in the cooling system. This electrolysis test can be performed
before or after the system has been repaired. Use a digital voltmeter set to 12 volts. Attach one test
lead to the negative battery post and insert the other test lead into the radiator coolant, making sure
the lead does not touch the filler neck or core. Any voltage reading over 0.3 volts indicates that
stray current is finding its way into the coolant. Electrolysis is often an intermittent condition that
occurs when a device or accessory that is mounted to the radiator is energized. This type of current
could be caused from a poorly grounded cooling fan or some other accessory and can be verified
by watching the volt meter and turning on and off various accessories or engage the starter motor.
Before using one of the following flush procedures, the coolant recovery reservoir must be
removed, drained, cleaned and reinstalled before refilling the system.
Notice:
^ Using coolant other than DEX‐COOL(R) may cause premature engine, heater core or
radiator corrosion. In addition, the engine coolant may require changing sooner, at 30,000 miles
(50,000 km) or 24 months, whichever occurs first. Any repairs would not be covered by your
warranty. Always use DEX‐COOL(R) (silicate free) coolant in your vehicle.
^ If you use an improper coolant mixture, your engine could overheat and be badly damaged. The
repair cost would not be covered by your warranty. Too much water in the mixture can freeze and
crack the engine, radiator, heater core and other parts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Heater Core > Component Information > Technical Service
Bulletins > Cooling System, A/C - Aluminum Heater Cores/Radiators > Page 13742
Flushing Procedures using DEX-COOL(R)
Important:
The following procedure recommends refilling the system with DEX-COOL(R), P/N 12346290 (in
Canada, use P/N 10953464), GM specification 6277M. This coolant is orange in color and has a
service interval of 5 years or 240,000 km (150,000 mi). However, when used on vehicles built prior
to the introduction of DEX-COOL(R), maintenance intervals will remain the same as specified in the
Owner's Manual.
^ If available, use the approved cooling system flush and fill machine (available through the GM
Dealer Equipment Program) following the manufacturer's operating instructions.
^ If approved cooling system flush and fill machine is not available, drain the coolant and dispose of
properly following the draining procedures in the appropriate Service Manual. Refill the system
using clear, drinkable water and run the vehicle until the thermostat opens. Repeat and run the
vehicle three (3) times to totally remove the old coolant or until the drained coolant is almost clear.
Once the system is completely flushed, refill the cooling system to a 50%-60% concentration with
DEX‐COOL(R), P/N 12346290 (in Canada, use P/N 10953464), GM specification 6277M,
following the refill procedures in the appropriate Service Manual.
If a Service Manual is not available, fill half the capacity of the system with 100% DEX-COOL(R),
P/N 12346290 (in Canada, use P/N 10953464), GM specification 6277M. Then slowly add clear,
drinkable water (preferably distilled) to the system until the level of the coolant mixture has reached
the base of the radiator neck. Wait two (2) minutes and reverify the coolant level. If necessary, add
clean water to restore the coolant to the appropriate level.
Once the system is refilled, reverify the coolant concentration using a Refractometer J 23688
(Fahrenheit scale) or J 26568 (centigrade scale) coolant tester, or equivalent. The concentration
levels should be between 50% and 65%.
Flushing Procedures using Conventional Silicated (Green Colored) Coolant
Important:
2004-2005 Chevrolet Aveo (Pontiac Wave, Canada Only) does not use DEX‐COOL(R).
The Aveo and Wave are filled with conventional, silicated engine coolant that is blue in color.
Silicated coolants are typically green in color and are required to be drained, flushed and refilled
every 30,000 miles (48,000 km). The Aveo and Wave are to be serviced with conventional, silicated
coolant. Use P/N 12378560 (1 gal) (in Canada, use P/N 88862159 (1 L). Refer to the Owner's
Manual or Service Information (SI) for further information on OEM coolant.
Important:
Do not mix the OEM orange colored DEX-COOL(R) coolant with green colored coolant when
adding coolant to the system or when servicing the vehicle's cooling system. Mixing the orange and
green colored coolants will produce a brown coolant which may be a customer dissatisfier and will
not extend the service interval to that of DEX-COOL(R). Conventional silicated coolants offered by
GM Service and Parts Operations are green in color.
^ If available, use the approved cooling system flush and fill machine (available through the GM
Dealer Equipment Program) following the manufacturer's operating instructions.
^ If approved cooling systems flush and fill machine is not available, drain coolant and dispose of
properly following the draining procedures in appropriate Service Manual. Refill the system using
clear, drinkable water and run vehicle until thermostat opens. Repeat and run vehicle three (3)
times to totally remove old coolant or until drained coolant is almost clear. Once the system is
completely flushed, refill the cooling system to a 50%-60% concentration with a good quality
ethylene glycol base engine coolant, P/N 12378560, 1 gal (in Canada, use P/N 88862159 1 L),
conforming to GM specification 1825M, or recycled coolant conforming to GM specification 1825M,
following the refill procedures in the appropriate Service Manual.
If a Service Manual is not available, fill half the capacity of the system with 100% good quality
ethylene glycol base (green colored) engine coolant, P/N 12378560 1 gal., (in Canada, use P/N
88862159 1 L) conforming to GM specification 1825M. Then slowly add clear, drinkable water
(preferably distilled) to system until the level of the coolant mixture has reached the base of the
radiator neck. Wait two (2) minutes and recheck coolant level. If necessary, add clean water to
restore coolant to the appropriate level.
Once the system is refilled, recheck the coolant concentration using a Refractometer J 23688
(Fahrenheit scale) or J 26568 (centigrade scale) coolant tester, or equivalent. Concentration levels
should be between 50% and 65%.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Heater Core > Component Information > Technical Service
Bulletins > Cooling System, A/C - Aluminum Heater Cores/Radiators > Page 13743
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Heater Core > Component Information > Technical Service
Bulletins > Page 13744
Heater Core: Service and Repair
Heater Core Replacement
Removal Procedure
1. Remove the HVAC module from the vehicle.
2. Remove the heater core cover screws from the HVAC module.
3. Remove the heater core cover from the HVAC module.
4. Remove the heater core from the HVAC module.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Heater Core > Component Information > Technical Service
Bulletins > Page 13745
1. Install the heater core to the HVAC module.
2. Install the heater core cover to the HVAC module.
Notice: Refer to Fastener Notice.
3. Install the heater core cover screws to the HVAC module.
Tighten the screw to 1.5 N.m (13 lb in).
4. Install the HVAC module to the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Heater Hose > Component Information > Service and
Repair > Heater Inlet Hose Replacement
Heater Hose: Service and Repair Heater Inlet Hose Replacement
Heater Inlet Hose Replacement
Removal Procedure
1. Drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill) Draining and
Filling Cooling System (GE 47716 Fill). 2. Remove the heater inlet hose clamp from the heater
core. 3. Remove the heater inlet hose (2) from the heater core.
4. Remove the heater inlet hose clamp from the engine. 5. Remove the heater inlet hose (2) from
the engine. 6. Remove the heater inlet hose (2) from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Heater Hose > Component Information > Service and
Repair > Heater Inlet Hose Replacement > Page 13750
1. Install the heater inlet hose (2) to the vehicle. 2. Install the heater inlet hose (2) to the engine. 3.
Install the heater inlet hose clamp to the engine.
4. Install the heater inlet hose (2) to the heater core. 5. Install the heater inlet hose clamp to the
heater core. 6. Fill the cooling system. Refer to Draining and Filling Cooling System (Static Fill)
Draining and Filling Cooling System (GE 47716 Fill).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Heater Hose > Component Information > Service and
Repair > Heater Inlet Hose Replacement > Page 13751
Heater Hose: Service and Repair Heater Outlet Hose Replacement
Heater Outlet Hose Replacement
Removal Procedure
1. Drain the engine coolant. Refer to Draining and Filling Cooling System (Static Fill) Draining and
Filling Cooling System (GE 47716 Fill). 2. Remove the heater outlet hose clamp from the heater
core. 3. Remove the heater outlet hose (1) from the heater core.
4. Remove the heater outlet hose clamp from the engine. 5. Remove the heater outlet hose (1)
from the engine. 6. Position the loose end of the heater outlet hose (1) outboard to ease in the
removal of the surge tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Heater Hose > Component Information > Service and
Repair > Heater Inlet Hose Replacement > Page 13752
7. Remove the surge tank inlet hose clamp from the surge tank. 8. Disconnect the surge tank inlet
hose from the surge tank.
9. Remove the surge tank bolts from the surge tank.
10. Lift the surge tank to gain access to the heater outlet hose. 11. Remove the heater outlet hose
clamp from the surge tank. 12. Remove the heater outlet hose from the surge tank. 13. Remove
the surge tank from the vehicle. 14. Remove the heater outlet hose clamp from the hose. This will
aid in routing the heater outlet hose from the vehicle. 15. Remove the heater outlet hose from the
vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Heater Hose > Component Information > Service and
Repair > Heater Inlet Hose Replacement > Page 13753
1. Install the heater outlet hose to the vehicle. Route the hose into position for attachment to the
surge tank. 2. Install the heater outlet hose clamp to the hose. 3. Install the heater outlet hose to
the surge tank. 4. Install the surge tank to the vehicle.
Notice: Refer to Fastener Notice.
5. Install the surge tank bolts to the surge tank.
Tighten the bolts to 8 N.m (71 lb in).
6. Connect the surge tank inlet hose to the surge tank. 7. Install the surge tank inlet hose clamp to
the surge tank.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Heater Hose > Component Information > Service and
Repair > Heater Inlet Hose Replacement > Page 13754
8. Install the heater outlet hose (1) to the engine. 9. Install the heater outlet hose clamp to the
engine.
10. Install the heater outlet hose (1) to the heater core. 11. Install the heater outlet hose clamp to
the heater core. 12. Fill the engine coolant. Refer to Draining and Filling Cooling System (Static Fill)
Draining and Filling Cooling System (GE 47716 Fill).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > High Pressure Safety Valve HVAC > Component
Information > Service and Repair
High Pressure Safety Valve HVAC: Service and Repair
Compressor Pressure Relief Valve Replacement
Tools Required
J 39400-A Halogen Leak Detector
Removal Procedure
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Service and
Repair/Refrigerant Recovery and Recharging 2. Raise and support the vehicle. Refer to Vehicle
Lifting.
3. Remove the pressure relief valve from the compressor. 4. Remove and discard the O-ring from
the pressure relief valve.
Installation Procedure
Important: Lubricate the new O-ring prior to installation on the compressor hose.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > High Pressure Safety Valve HVAC > Component
Information > Service and Repair > Page 13758
1. Lightly coat the new O-ring with mineral base 525 viscosity refrigerant oil. 2. Install the new
O-ring to the pressure relief valve.
Notice: Refer to Fastener Notice.
3. Install the pressure relief valve to the compressor.
Tighten the pressure relief valve to 8.8 N.m (78 lb in).
4. Lower the vehicle. Refer to Vehicle Lifting. 5. Recharge the A/C system. Refer to Refrigerant
Recovery and Recharging. See: Service and Repair/Refrigerant Recovery and Recharging 6. Test
the affected A/C joint for leaks using J 39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement
Hose/Line HVAC: Service and Repair Compressor Hose Assembly Replacement
Compressor Hose Assembly Replacement
Tools Required
J 39400-A Halogen Leak Detector
Removal Procedures
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Service and
Repair/Refrigerant Recovery and Recharging 2. Remove the left headlamp.
3. Remove the compressor hose retainer nut from the battery box. 4. Remove the evaporator outlet
hose nut from the evaporator outlet hose. 5. Remove the evaporator outlet hose from the
compressor hose. 6. Install a protective cap to the evaporator outlet hose to prevent contamination
and desiccant saturation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13763
7. Remove the compressor hose nut from the condenser. 8. Remove the compressor hose from
the condenser. 9. Install a protective cap to the condenser to prevent contamination and desiccant
saturation.
10. Raise and support the vehicle. Refer to Vehicle Lifting.
11. Disconnect the electrical connector from the pressure transducer. 12. Remove the compressor
hose nut at the compressor. 13. Remove the compressor hose from the compressor. 14. Install a
protective cap to the compressor to prevent contamination and desiccant saturation. 15. Remove
the compressor hose from the vehicle. 16. Remove and discard the sealing washers from the
compressor hose.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13764
1. Remove protective cap from compressor end of the compressor hose and the compressor. 2.
Install new seal washers to the compressor hose. 3. Install the compressor hose to the
compressor.
Notice: Refer to Fastener Notice.
4. Install the compressor hose nut to the compressor.
Tighten the nut to 20 N.m (15 lb ft).
5. Connect the electrical connector to the pressure transducer.
6. Lower the vehicle. 7. Position the compressor hose in the vehicle. 8. Install a new sealing
washer to the evaporator outlet hose. 9. Install the evaporator outlet hose to the compressor hose.
10. Install the evaporator outlet hose nut to the evaporator outlet hose.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13765
Tighten the nut to 20 N.m (15 lb ft).
11. Install a new sealing washer to the compressor hose at the condenser. 12. Install the
compressor hose to the condenser. 13. Install the compressor hose nut to the condenser.
Tighten the nut to 20 N.m (15 lb ft).
14. Install the compressor hose retainer nut to the battery box.
Tighten the nut to 9 N.m (80 lb in).
15. Install the left headlamp. 16. Recharge the A/C system. Refer to Refrigerant Recovery and
Recharging. See: Service and Repair/Refrigerant Recovery and Recharging 17. Test the affected
A/C joints for leaks using J 39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13766
Hose/Line HVAC: Service and Repair Evaporator Hose Replacement - Outlet
Evaporator Hose Replacement - Outlet
Tools Required
J 39400-A Halogen Leak Detector
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Service and
Repair/Refrigerant Recovery and Recharging 2. Remove the evaporator outlet hose nut from the
evaporator outlet hose. 3. Remove the evaporator outlet hose from the compressor hose.
4. Remove the evaporator outlet hose and liquid line retainer plate nut from the thermal expansion
valve (TXV). 5. Remove the evaporator outlet hose and liquid line from the TXV. 6. Remove
evaporator outlet hose from the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13767
7. Remove and discard the sealing washers from the evaporator outlet hose and the compressor
hose. 8. Install protective caps to the TXV, the liquid line, and the compressor hose to prevent
contamination and desiccant saturation.
Installation Procedure
1. Remove the protective caps from the TXV, the liquid line, and the compressor hose. 2. Install
new sealing washers to the evaporator outlet hose, liquid line, and the compressor hose. 3. Install
the evaporator outlet hose and the liquid line to the TXV.
Notice: Refer to Fastener Notice.
4. Install the evaporator outlet hose and the liquid line nut to the TXV.
Tighten the nut to 20 N.m (15 lb ft).
5. Install the evaporator outlet hose to the compressor hose. 6. Install the evaporator outlet hose
nut to the evaporator outlet hose.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13768
Tighten the nut to 20 N.m (15 lb ft).
7. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging. See: Service and
Repair/Refrigerant Recovery and Recharging 8. Test the affected A/C joints for leaks using J
39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13769
Hose/Line HVAC: Service and Repair Liquid Line Replacement
Liquid Line Replacement
Tools Required
J 39400-A Halogen Leak Detector
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Service and
Repair/Refrigerant Recovery and Recharging 2. Remove the left headlamp. 3. Remove the surge
tank. 4. Remove the washer bottle. 5. Remove the battery. 6. Remove the battery box bolts from
the battery box. 7. Disconnect the negative battery cable nut from the wheelhouse.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13770
8. Remove the nut retaining the liquid line to the strut tower. 9. Disconnect the harness and vent
hose retainers from the liquid line.
10. Remove the evaporator outlet hose and liquid line retainer plate nut from the thermal expansion
valve (TXV). 11. Remove the evaporator outlet hose and liquid line from the TXV.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13771
12. Remove the liquid line nut from the condenser. 13. Remove the liquid line from the condenser.
14. Remove the bolt retaining the liquid line to the body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13772
15. Position the battery box inboard to allow for routing of the liquid line. 16. Route the liquid line
above the battery box and the ground lug. 17. Lift the rear portion of the liquid line upward and
remove the liquid line from the vehicle. 18. Remove and discard the sealing washer from the liquid
line. 19. Install protective caps to the condenser, the evaporator outlet hose, and the TXV to
prevent contamination and desiccant saturation.
Installation Procedure
1. Route the liquid line below the battery box and the ground lug.
Notice: Refer to Fastener Notice.
2. Connect the negative battery cable nut to the wheelhouse.
Tighten the nut to 12 N.m (106 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13773
3. Remove the protective caps from the condenser, the evaporator outlet hose, and the TXV. 4.
Install the new sealing washer to the liquid line. 5. Route the condenser end of the liquid line into
position. 6. Install the liquid line to the condenser.
Important: Use a large pair of pliers to hold the fitting while tightening the nut. Be careful not to twist
the line.
7. Install the liquid line nut to the condenser.
Tighten the nut to 20 N.m (15 lb ft).
8. Install the bolt to retain the liquid line to the body.
Tighten the nut to 9 N.m (80 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13774
9. Remove the protective cap from the TXV, the liquid line, and the evaporator outlet hose.
10. Install new seal washers to the liquid line and the evaporator outlet hose. 11. Install the liquid
line and the evaporator outlet hose to the TXV. 12. Install the liquid line and evaporator outlet hose
retainer plate nut to the TXV.
Tighten the nut to 20 N.m (15 lb ft).
13. Install the four battery box bolts to the inside of the battery box.
Tighten the nut to 15 N.m (11 lb ft).
14. Install the battery box bolt to the outside of the battery box.
Tighten the nut to 10 N.m (86 lb in).
15. Install the battery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Hose/Line HVAC > Component Information > Service and
Repair > Compressor Hose Assembly Replacement > Page 13775
16. Install the liquid line to the strut tower. 17. Install the liquid line nut to the strut tower.
Tighten the nut to 9 N.m (80 lb in).
18. Connect the harness and vent hose retainers to the liquid line. 19. Install the surge tank. 20.
Install the washer bottle. 21. Install the left headlamp. 22. Recharge the A/C system. Refer to
Refrigerant Recovery and Recharging. See: Service and Repair/Refrigerant Recovery and
Recharging 23. Test the affected A/C joints for leaks using J 39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Housing Assembly HVAC > Component Information >
Service and Repair > Blower Case Assembly Replacement
Housing Assembly HVAC: Service and Repair Blower Case Assembly Replacement
Blower Case Assembly Replacement
Removal Procedure
1. Remove the HVAC module assembly. 2. Remove the evaporator case assembly. 3. Remove the
air inlet assembly.
4. Remove the blower motor screws from the blower case assembly. 5. Remove the blower motor
from the blower case assembly.
6. Remove the blower motor control module screws from the blower case assembly. 7. Remove the
blower motor control module from the blower case assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Housing Assembly HVAC > Component Information >
Service and Repair > Blower Case Assembly Replacement > Page 13780
8. Remove the screws retaining the two halves of the blower case assembly. 9. Separate the two
halves of the blower case assembly.
10. Remove the evaporator core from the blower case assembly.
Installation Procedure
1. Install the evaporator core to the blower case assembly. 2. Assemble the two halves of the
blower case assembly.
Notice: Refer to Fastener Notice.
3. Install the screws to retain the two halves of the blower case assembly.
Tighten the screws to 1.5 N.m (13 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Housing Assembly HVAC > Component Information >
Service and Repair > Blower Case Assembly Replacement > Page 13781
4. Install the blower motor control module to the blower case assembly. 5. Install the blower motor
control module screws to the blower case assembly.
Tighten the screws to 1.5 N.m (13 lb in).
6. Install the blower motor to the blower case assembly. 7. Install the blower motor screws to the
blower case assembly.
Tighten the screws to 1.5 N.m (13 lb in).
8. Install the air inlet assembly. 9. Install the evaporator case assembly.
10. Install the HVAC module.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Housing Assembly HVAC > Component Information >
Service and Repair > Blower Case Assembly Replacement > Page 13782
Housing Assembly HVAC: Service and Repair HVAC Module Assembly Replacement
HVAC Module Assembly Replacement
Tools Required
J 39400-A Halogen Leak Detector
1. Disable the frontal and curtain air bags. 2. Recover the refrigerant. Refer to Refrigerant
Recovery and Recharging. See: Service and Repair/Refrigerant Recovery and Recharging 3. Drain
the engine coolant. Refer to Draining and Filling Cooling System (Static Fill) Draining and Filling
Cooling System (GE 47716 Fill).
4. Remove the evaporator outlet hose and liquid line nut from the thermal expansion valve (TXV).
5. Remove the evaporator outlet hose from the TXV. 6. Remove and discard the sealing washer
from the evaporator outlet hose. 7. Remove the evaporator outlet hose and liquid line from the
TXV. 8. Remove and discard the sealing washer from the liquid line. 9. Install a protective caps to
the evaporator outlet hose and the liquid line to prevent contamination and desiccant saturation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Housing Assembly HVAC > Component Information >
Service and Repair > Blower Case Assembly Replacement > Page 13783
10. Reposition the heater outlet hose clamp at the heater core. 11. Remove the heater outlet hose
from the heater core. 12. Reposition the heater inlet hose clamp at the heater core. 13. Remove
the heater inlet hose at the heater core. 14. Plug the heater core and the evaporator core with
clean towels to prevent spillage when the HVAC module is removed.
15. Remove the HVAC module seal nuts from the front of dash. 16. Remove the instrument panel
(I/P) retainer. 17. Remove the shift control bracket.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Housing Assembly HVAC > Component Information >
Service and Repair > Blower Case Assembly Replacement > Page 13784
18. Remove the center floor air outlet duct by sliding the duct forward then up at the rear.
19. Remove the center I/P air outlet duct retainers from the instrument panel tie bar. 20. Remove
the center I/P air outlet duct from the instrument panel tie bar. 21. Remove the instrument panel tie
bar. 22. Disconnect the blower motor electrical connector from the I/P wire harness. 23. Disconnect
the blower motor control module electrical connector from the I/P wire harness. 24. Disconnect the
HVAC module electrical connector from the I/P wire harness.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Housing Assembly HVAC > Component Information >
Service and Repair > Blower Case Assembly Replacement > Page 13785
25. Remove the defroster duct retainer from the instrument panel tie bar. 26. Remove the defroster
duct from the HVAC module. 27. Disconnect the I/P wire harness clips from the HVAC module.
28. Remove the HVAC module from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Housing Assembly HVAC > Component Information >
Service and Repair > Blower Case Assembly Replacement > Page 13786
Important: Make sure the HVAC module seals are flush and even as they meet their mating
surfaces. This will reduce the chance of leaks and ensure proper fit.
1. Inspect the front of dash seal for proper alignment. 2. Inspect the seal mating surfaces to ensure
there are no obstructions. 3. Position the HVAC module in the vehicle. 4. Install, but do not tighten,
the seal nuts to the front of dash. 5. Install the instrument panel tie bar.
Notice: Refer to Fastener Notice.
Important: New front of dash seal nuts must be used to prevent leaks.
6. Tighten the HVAC module seal nuts to the front of dash. Draw the HVAC module to the front of
dash evenly by alternating between the seal nuts.
Tighten the nuts to 8 N.m (71 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Housing Assembly HVAC > Component Information >
Service and Repair > Blower Case Assembly Replacement > Page 13787
7. Install the defroster duct to the HVAC module. 8. Install the defroster duct retainer to the
instrument panel tie bar. 9. Connect the I/P wire harness clips to the HVAC module.
10. Connect the blower motor electrical connector to the I/P wire harness. 11. Connect the blower
motor control module electrical connector to the I/P wire harness. 12. Connect the HVAC module
electrical connector to the I/P wire harness.
13. Install the center I/P duct to the instrument panel tie bar. 14. Install the center I/P duct retainers
to the instrument panel tie bar.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Housing Assembly HVAC > Component Information >
Service and Repair > Blower Case Assembly Replacement > Page 13788
15. Install the center floor air outlet by sliding forward onto the front floor air outlet then down and
rearward over the rear floor air outlet. 16. Install the shift control bracket. 17. Install the I/P retainer.
18. Install the heater inlet hose to the heater core. 19. Install the heater inlet hose clamp to the
heater core. 20. Install the heater outlet hose to heater core outlet. 21. Install the heater outlet hose
clamp to the heater core.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Housing Assembly HVAC > Component Information >
Service and Repair > Blower Case Assembly Replacement > Page 13789
22. Ensure the mating surfaces are clean and free of debris, and install new seal washers to the
evaporator outlet hose and the liquid line. Refer to
Sealing Washer Replacement.
23. Install the evaporator outlet hose and the liquid line to the TXV. 24. Install the evaporator outlet
hose and liquid line nut to the TXV.
Tighten the nut to 20 N.m (15 lb ft).
25. Enable the frontal and curtain air bags. 26. Fill the coolant. Refer to Draining and Filling Cooling
System (Static Fill) Draining and Filling Cooling System (GE 47716 Fill). 27. Evacuate and charge
the A/C system. Refer to Refrigerant Recovery and Recharging. See: Service and
Repair/Refrigerant Recovery and
Recharging
28. Test the affected A/C joints for leaks using J 39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Receiver Dryer > Component Information > Service and
Repair
Receiver Dryer: Service and Repair
Receiver Dehydrator Replacement
Tools Required
J 39400-A Halogen Leak Detector
Removal Procedure
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Service and
Repair/Refrigerant Recovery and Recharging 2. Remove the front bumper fascia.
3. Remove the bolt retaining the receiver dehydrator mounting clamp to the condenser. 4. Remove
the receiver dehydrator mounting clamp from the condenser.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Receiver Dryer > Component Information > Service and
Repair > Page 13793
5. Remove the lower receiver dehydrator bolt from the condenser.
6. Remove the receiver dehydrator from the condenser. 7. Install protective caps to the condenser
to prevent contamination and desiccant saturation.
Installation Procedure
1. Remove the protective caps from the condenser. 2. Add the specified amount of polyalkylene
glycol (PAG) oil to the receiver dehydrator. Refer to Refrigerant System Capacities. 3. Install new
O-rings to the receiver dehydrator. 4. Install the receiver dehydrator to the condenser.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Receiver Dryer > Component Information > Service and
Repair > Page 13794
Notice: Refer to Fastener Notice.
5. Install the lower receiver dehydrator bolt to the condenser.
Tighten the bolt to 6.5 N.m (58 lb in).
6. Install the receiver dehydrator mounting clamp to the condenser. 7. Install the receiver
dehydrator mounting clamp bolt to the condenser.
Tighten the bolt to 4.2 N.m (37 lb in).
8. Install the front bumper fascia. 9. Evacuate and charge the A/C system. Refer to Refrigerant
Recovery and Recharging. See: Service and Repair/Refrigerant Recovery and
Recharging
10. Test the affected A/C joints for leaks using J 39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant > Component Information > Technical Service
Bulletins > A/C - Refrigerant Recovery/Recycling/Equipment
Refrigerant: Technical Service Bulletins A/C - Refrigerant Recovery/Recycling/Equipment
Bulletin No.: 08-01-38-001
Date: January 25, 2008
INFORMATION
Subject: Information On New GE-48800 CoolTech Refrigerant Recovery/Recharge Equipment
Models: 2008 and Prior GM Passenger Cars and Light Duty Trucks (Including Saturn) 2008 and
Prior HUMMER H2, H3 2005-2008 Saab 9-7X
Attention:
This bulletin is being issued to announce the release of GM approved Air Conditioning (A/C)
Refrigerant Recovery and Recharging Equipment that meets the new Society of Automotive
Engineers (SAE) J2788 Refrigerant Recovery Standards. The ACR2000 (J-43600) cannot be
manufactured in its current state after December 2007 and will be superseded by GE-48800.
The new J2788 standard does not require that GM Dealers replace their ACR2000 units.
ACR2000's currently in use are very capable of servicing today's refrigerant systems when used
correctly and can continue to be used. Details regarding the new SAE J2788 standard are outlined
in GM Bulletin 07-01-38-004.
Effective February 1 2008, new A/C Refrigerant Recovery/Recharging equipment (P/N GE-48800)
will be released as a required replacement for the previously essential ACR2000 (J-43600). This
equipment is SAE J2788 compliant and meets GM requirements for A/C Refrigerant System
Repairs on all General Motors vehicles, including Hybrid systems with Polyolester (POE)
refrigerant oil. This equipment will not be shipped as an essential tool to GM Dealerships.
In addition, this equipment is Hybrid compliant and designed to prevent oil cross contamination
when servicing Hybrid vehicles with Electric A/C Compressors that use POE refrigerant oil.
The ACR2000 (J-43600) will need to be retrofitted with a J-43600-50 (Hose - ACR2000 Oil Flush
Loop) to be able to perform Hybrid A/C service work. All Hybrid dealers will receive the J-43600-50,
with installation instructions, as a component of the Hybrid essential tool package. Dealerships that
do not sell Hybrids, but may need to service Hybrids, can obtain J-43600-50 from SPX Kent Moore.
Refer to GM Bulletin 08-01-39-001 for the ACR2000 Hose Flush procedure.
The High Voltage (HV) electric A/C compressor used on Two Mode Hybrid vehicles uses a
Polyolester (POE) refrigerant oil instead of a Polyalkylene Glycol (PAG) synthetic refrigerant oil.
This is due to the better electrical resistance of the POE oil and its ability to provide HV isolation.
Failure to flush the hoses before adding refrigerant to a Hybrid vehicle with an electric A/C
compressor may result in an unacceptable amount of PAG oil entering the refrigerant system. It
may cause a Battery Energy Control Module Hybrid Battery Voltage System Isolation Lost
Diagnostic Trouble Code (DTC P1AE7) to be set. Additionally, the A/C system warranty will be
voided.
Warranty Submission Requirements
The Electronically Generated Repair Data (snapshot summary) and printer functions have been
eliminated from the GE-48800. The VGA display and temperature probes were eliminated to
reduce equipment costs. As a result, effective immediately the 18 digit "Snapshot/Charge
Summary" code is no longer required for Air Conditioning (A/C) refrigerant system repairs that are
submitted for warranty reimbursement. The charge summary data from before and after system
repairs will continue to required, but documented on the repair order only. Both high and low
pressures and the recovery and charge amounts should be noted during the repair and entered on
the repair order. If using ACR2000 (J-43600), the "Snapshot/Charge Summary" printouts should
continue to be attached to the shops copy of the repair order.
The labor codes that are affected by this requirement are D3000 through D4500.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant > Component Information > Technical Service
Bulletins > A/C - Refrigerant Recovery/Recycling/Equipment > Page 13799
Refrigerant: Technical Service Bulletins A/C - Contaminated R134A Refrigerant
Bulletin No.: 06-01-39-007
Date: July 25, 2006
INFORMATION
Subject: Contaminated R134a Refrigerant Found on Market for Automotive Air-Conditioning
Systems
Models: 2007 and Prior GM Passenger Cars and Trucks (including Saturn) 2007 and Prior
HUMMER H2, H3 2007 and Prior Saab 9-7X
Attention:
This bulletin should be directed to the Service Manager as well as the Parts Manager.
Commercially Available Contaminated R134a Refrigerant
Impurities have been found in new commercially available containers of R134a. High levels of
contaminates may cause decreased performance, and be detrimental to some air-conditioning
components. Accompanying these contaminates has been high levels of moisture.
Tip:
Excessive moisture may cause system concerns such as orifice tube freeze-up and reduced
performance.
Industry Reaction: New Industry Purity Standards
Due to the potential availability of these lower quality refrigerants, the Society of Automotive
Engineers (SAE), and the Air Conditioning and Refrigeration Industry (ARI) are in the process of
instituting reliable standards that will be carried on the labels of future R134a refrigerant containers.
This identifying symbol will be your assurance of a product that conforms to the minimum standard
for OEM Automotive Air-Conditioning use.
How Can You Protect Yourself Today?
It is recommended to use GM or ACDelco(R) sourced refrigerants for all A/C repair work. These
refrigerants meet General Motors own internal standards for quality and purity, insuring that your
completed repairs are as good as the way it left the factory.
Parts Information
The part numbers shown are available through GMSPO or ACDelco(R). The nearest ACDelco(R)
distributor in your area can be found by calling 1-800-223-3526 (U.S. Only).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant > Component Information > Technical Service
Bulletins > A/C - Refrigerant Recovery/Recycling/Equipment > Page 13800
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant > Component Information > Specifications >
Capacity Specifications
Refrigerant: Capacity Specifications
Refrigerant System Capacities
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant > Component Information > Specifications >
Capacity Specifications > Page 13803
Refrigerant: Fluid Type Specifications
Air Conditioning Refrigerant
....................................................................................................................... R134a P/N 12356150
U.S. (10953485 Canada)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant Oil > Component Information > Specifications >
Capacity Specifications
Refrigerant Oil: Capacity Specifications
Refrigerant System Capacities
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant Oil > Component Information > Specifications >
Capacity Specifications > Page 13808
Refrigerant Oil: Fluid Type Specifications
PAG Oil GM P/N 12378526 for United States
PAG Oil GM P/N 88900060 for Canada
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant Pressure Sensor / Switch, HVAC > Component
Information > Locations
Refrigerant Pressure Sensor / Switch: Locations
HVAC Component Views
Front of Engine
1 - A/C Compressor Clutch 2 - Knock Sensor (KS) 2 3 - Starter 4 - A/C Refrigerant Pressure
Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant Pressure Sensor / Switch, HVAC > Component
Information > Locations > Page 13812
Refrigerant Pressure Sensor / Switch: Diagrams
A/C Refrigerant Pressure Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant Pressure Sensor / Switch, HVAC > Component
Information > Locations > Page 13813
Refrigerant Pressure Sensor / Switch: Service and Repair
Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
Removal Procedure
1. Disconnect the electrical connector from the refrigerant pressure sensor. 2. Remove the
refrigerant pressure sensor from the compressor hose.
Installation Procedure
Important: Use R-12 refrigerant oil (mineral) to lubricate O-rings. Use of R-134a polyalkylene glycol
(PAG) oil will cause premature corrosion of fitting joints.
1. Lubricate the refrigerant pressure sensor O-ring with mineral oil. Refer to O-Ring Replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant Pressure Sensor / Switch, HVAC > Component
Information > Locations > Page 13814
Notice: Refer to Fastener Notice.
2. Hand start the refrigerant pressure sensor to the compressor hose, taking care not to pinch the
O-ring and tighten.
Tighten the pressure sensor to 4 N.m (35 lb in).
3. Install the electrical connector to the refrigerant pressure sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant Temperature Sensor > Component Information
> Service and Repair
Refrigerant Temperature Sensor: Service and Repair
Air Conditioning (A/C) Refrigerant Low Temperature Sensor Replacement
Removal Procedure
1. Remove the left side insulator/closeout panel. 2. If equipped with OnStar(R), remove the
communications interface module. Refer to Communication Interface Module Replacement. 3.
Disconnect the temperature sensor connector from the temperature sensor. 4. Twist the
temperature sensor one quarter turn to disengage from the evaporator case assembly. 5. Remove
the temperature sensor from the evaporator case assembly.
Installation Procedure
1. Install the temperature sensor to the evaporator case assembly. 2. Twist the temperature sensor
one quarter turn to engage to the evaporator case assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Refrigerant Temperature Sensor > Component Information
> Service and Repair > Page 13818
3. Install the temperature sensor connector to the temperature sensor. 4. If removed, install the
communications interface module. Refer to Communication Interface Module Replacement. 5.
Install the left side insulator/closeout panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Relays and Modules - HVAC > Control Module HVAC >
Component Information > Locations
Control Module HVAC: Locations
HVAC Component Views
Instrument Panel
1 - Ambient Light Sensor 2 - Instrument Panel Cluster (IPC) 3 - Driver Information Center (DIC)
Switch 4 - Hazard Switch 5 - Inflatable Restraint Passenger Air Bag ON/OFF Indicator 6 - Rear
Wiper/Washer Switch 7 - Radio 8 - HVAC Control Module 9 - Heated Seat Switches 10 - Power
Window Switch - Main
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Relays and Modules - HVAC > Control Module HVAC >
Component Information > Locations > Page 13823
11 - Traction Control Switch 12 - Dimmer Switch 13 - Outside Rear View Mirror Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Relays and Modules - HVAC > Control Module HVAC >
Component Information > Locations > Page 13824
Control Module HVAC: Diagrams
HVAC Connector End Views
HVAC Control Module - C1
HVAC Control Module - C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Relays and Modules - HVAC > Control Module HVAC >
Component Information > Locations > Page 13825
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Relays and Modules - HVAC > Control Module HVAC >
Component Information > Locations > Page 13826
Control Module HVAC: Service and Repair
Blower Motor Control Module Replacement
Removal Procedure
1. Disconnect the electrical connector from the blower motor control module.
2. Remove the blower control module screws from the HVAC module.
3. Remove the blower motor control module from the HVAC module.
Installation Procedure
1. Install the blower motor control module to the HVAC module.
Notice: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Relays and Modules - HVAC > Control Module HVAC >
Component Information > Locations > Page 13827
2. Install the blower motor control module screws to the HVAC module.
Tighten the screws to 1.5 N.m (13 lb in).
3. Connect the electrical connector to the blower motor control module.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Sensors and Switches - HVAC > Ambient Temperature
Sensor / Switch HVAC > Component Information > Locations
Ambient Temperature Sensor / Switch HVAC: Locations
HVAC Component Views
Below the Front Impact Bar
1 - RF Headlamp 2 - Radiator 3 - Ambient Air Temperature Sensor (DH3/DF5)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Sensors and Switches - HVAC > Ambient Temperature
Sensor / Switch HVAC > Component Information > Locations > Page 13832
Ambient Temperature Sensor / Switch HVAC: Diagrams
HVAC Connector End Views
Ambient Air Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Sensors and Switches - HVAC > Evaporator Temperature
Sensor / Switch > Component Information > Locations
Evaporator Temperature Sensor / Switch: Locations
HVAC Component Views
HVAC Module Assembly
1 - Recirculation Actuator 2 - HVAC Blower Motor 3 - Blower Motor Control Processor 4 - Air
Temperature Actuator 5 - Mode Actuator 6 - Evaporator Temperature Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Sensors and Switches - HVAC > Refrigerant Pressure
Sensor / Switch, HVAC > Component Information > Locations
Refrigerant Pressure Sensor / Switch: Locations
HVAC Component Views
Front of Engine
1 - A/C Compressor Clutch 2 - Knock Sensor (KS) 2 3 - Starter 4 - A/C Refrigerant Pressure
Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Sensors and Switches - HVAC > Refrigerant Pressure
Sensor / Switch, HVAC > Component Information > Locations > Page 13839
Refrigerant Pressure Sensor / Switch: Diagrams
A/C Refrigerant Pressure Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Sensors and Switches - HVAC > Refrigerant Pressure
Sensor / Switch, HVAC > Component Information > Locations > Page 13840
Refrigerant Pressure Sensor / Switch: Service and Repair
Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
Removal Procedure
1. Disconnect the electrical connector from the refrigerant pressure sensor. 2. Remove the
refrigerant pressure sensor from the compressor hose.
Installation Procedure
Important: Use R-12 refrigerant oil (mineral) to lubricate O-rings. Use of R-134a polyalkylene glycol
(PAG) oil will cause premature corrosion of fitting joints.
1. Lubricate the refrigerant pressure sensor O-ring with mineral oil. Refer to O-Ring Replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Sensors and Switches - HVAC > Refrigerant Pressure
Sensor / Switch, HVAC > Component Information > Locations > Page 13841
Notice: Refer to Fastener Notice.
2. Hand start the refrigerant pressure sensor to the compressor hose, taking care not to pinch the
O-ring and tighten.
Tighten the pressure sensor to 4 N.m (35 lb in).
3. Install the electrical connector to the refrigerant pressure sensor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Sensors and Switches - HVAC > Refrigerant Temperature
Sensor > Component Information > Service and Repair
Refrigerant Temperature Sensor: Service and Repair
Air Conditioning (A/C) Refrigerant Low Temperature Sensor Replacement
Removal Procedure
1. Remove the left side insulator/closeout panel. 2. If equipped with OnStar(R), remove the
communications interface module. Refer to Communication Interface Module Replacement. 3.
Disconnect the temperature sensor connector from the temperature sensor. 4. Twist the
temperature sensor one quarter turn to disengage from the evaporator case assembly. 5. Remove
the temperature sensor from the evaporator case assembly.
Installation Procedure
1. Install the temperature sensor to the evaporator case assembly. 2. Twist the temperature sensor
one quarter turn to engage to the evaporator case assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Sensors and Switches - HVAC > Refrigerant Temperature
Sensor > Component Information > Service and Repair > Page 13845
3. Install the temperature sensor connector to the temperature sensor. 4. If removed, install the
communications interface module. Refer to Communication Interface Module Replacement. 5.
Install the left side insulator/closeout panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Heating and Air Conditioning > Service Port HVAC > Component Information > Service and
Repair
Service Port HVAC: Service and Repair
Air Conditioning Refrigerant Service Valve Core Replacement
Tools Required
* J 39400-A Halogen Leak Detector
* J 46246 Valve Core Removal Tool
Removal Procedure
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Service and
Repair/Refrigerant Recovery and Recharging
2. Use J 46246 or equivalent to remove the valve core.
Installation Procedure
1. Use J 46246 or equivalent to install and tighten the valve core. 2. Evacuate and charge the A/C
system. Refer to Refrigerant Recovery and Recharging. See: Service and Repair/Refrigerant
Recovery and
Recharging
Important: To prevent loss of refrigerant charge, tighten the cap. Replace the cap if the seal is
missing or damaged.
3. Test the affected A/C fittings for leaks using J 39400-A.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Repairs and Inspections Required After a Collision > System
Information > Service and Repair > Seat Belts
Repairs and Inspections Required After a Collision: Service and Repair Seat Belts
Repairs and Inspections Required After a Collision
Caution: Restraint systems can be damaged in a collision. To help avoid injury and ensure that all
parts in need of replacement are replaced:
* Replace any seat belt system that was in use during the collision serious enough to deploy any
automatic restraint device such as air bags and seat belt pretensioners. This not only includes seat
belt systems in use by people of adult size, but seat belt systems used to secure child restraints,
infant carriers and booster seats, including LATCH system and top tether anchorages.
* Replace any seat belt system that has torn, worn, or damaged components. This not only
includes adult seat belt systems, but built-in child restraints and LATCH system components, if any.
* Replace any seat belt system if you observe the words "REPLACE" or "CAUTION", or if a yellow
tag is visible. Do not replace a seat belt if only the child seat caution label is visible.
* Replace any seat belt system if you are doubtful about its condition. This not only includes adult
seat belt systems, but built-in child restraints, LATCH system components, and any restraint
system used to secure infant carriers, child restraints, and booster seats.
Do NOT replace single seat belt system components in vehicles that have been in a collision as
described above. Always replace the entire seat belt system with the buckle, guide and retractor
assembly, which includes the latch and webbing material.
After a minor collision where no automatic restraint device was deployed, seat belt system
replacement may not be necessary unless some of the parts are torn, worn, or damaged.
After any collision, verify that the pretentioners on the front seat belt retractor have not deployed.
1. Pull the seat belt webbing. 2. If you hear a grinding or a rattling, replace the retractor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Repairs and Inspections Required After a Collision > System
Information > Service and Repair > Seat Belts > Page 13854
Repairs and Inspections Required After a Collision: Service and Repair Steering Column
Steering Column Accident Damage Inspection
Inspection
This vehicle is equipped with electric power steering (EPS), with the electric motor and torque
sensor mounted on the steering column. When involved in an accident resulting in sheet metal
damage or driver-side air bag deployment, the steering column must be inspected for both
electrical system integrity and steering column collapse. Go to Diagnostic System Check - Vehicle.
* If the steering column electrical system integrity is not within specifications, the complete steering
column must be replaced.
* If the steering column collapse mechanism is not within specifications, but the electrical system
integrity is within specifications, then the steering column upper jacket must be replaced.
Road test the vehicle when ever any steering system repairs or diagnostics have been performed.
Electric Power Steering (EPS) Inspection
1. Install a scan tool. 2. Start the engine.
Important: After centering the steering wheel, remove hands and other objects from the steering
wheel. Ensure the suspension is relaxed and that no bias, or uneven force is being applied to the
steering system.
3. Turn the steering wheel 90 degrees to the left, then 90 degrees to the right, then return the
steering wheel to center. 4. Using the scan tool, observe the Torque Sensor Main data parameter in
the EPS data list. Correct parameter range for the torque sensor is <+ or 1 N.m (0.7 lb ft).
5. If the value is greater than the specified range then replace the steering column assembly.
Collapse Measurement
A vehicle involved in an accident resulting in sheet metal damage or drivers-side air bag
deployment will require an inspection for steering column collapse. If the steering column collapse
measurement is greater than 3 mm than the steering column upper jacket must be replaced.
For steering column collapse measurement, use the following procedure:
1. Remove the steering column trim covers.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Repairs and Inspections Required After a Collision > System
Information > Service and Repair > Seat Belts > Page 13855
2. Inspect the upper steering column mounting capsule nuts for movement (a). If the steering
column collapse measurement is greater than 3 mm
than the steering column upper jacket must be replaced.
3. Install the steering column trim covers.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Repairs and Inspections Required After a Collision > System
Information > Service and Repair > Seat Belts > Page 13856
Repairs and Inspections Required After a Collision: Service and Repair Supplemental Inflatable
Restraints
Repairs and Inspections Required After a Collision
Accident With or Without Air Bag Deployment - Component Inspections
Caution: Proper operation of the SIR sensing system requires that any repairs to the vehicle
structure return the vehicle structure to the original production configuration. Not properly repairing
the vehicle structure could cause non-deployment in a collision or deployment for conditions less
severe than intended.
After a collision, inspect the following components as indicated. If any damage is detected, replace
the component. If damage to the mounting points or mounting hardware is detected, repair the
component or replace the hardware as needed.
* Steering column-Perform the steering column accident damage checking procedures. Refer to
Steering Column Accident Damage Inspection. See: Steering Column
* Instrument panel (I/P) knee bolsters and mounting points-Inspect the knee bolsters for bending,
twisting, buckling, or any other type of damage.
* I/P brackets, braces, etc.-Inspect for bending, twisting, buckling, or any other type of damage.
* Seat belts-Perform the seat belt operational and functional checks. Refer to Operational and
Functional Checks. See: Seat Belt Systems/Testing and Inspection/Initial Inspection and
Diagnostic Overview/Operational and Functional Checks
* Seats and seat mounting points-Inspect for bending, twisting, buckling, or any other type of
damage.
* Passenger seat bottom equipped with Passenger Presence System (PPS)-Check for any DTCs
or problems that may cause the PPS not to function properly.
Accident With Frontal Deployment - Component Replacement and Inspections
After a collision involving air bag deployment, replace the following components.
Important: The front passenger seat is equipped with a PPS, which detects an occupant. If the
requirements for disabling the I/P air bag are met then the PPS will communicate with the SDM to
disable/turn off the I/P air bag, even in a accident. For more information on the PPS refer to SIR
System Description and Operation.
* Inflatable restraint I/P module, if deployed and after performing the necessary inspections listed
above.
* Inflatable restraint steering wheel module
* Inflatable restraint SDM
* Inflatable restraint front end sensors
* Inflatable restraint seat belt retractor pretensioners
Perform additional inspections on the following components.
* Steering wheel module coil and the coil wiring pigtail-Inspect for melting, scorching, or other
damage due to excessive heat.
* Mounting points or mounting hardware for the I/P module, steering wheel module, SDM, and
pretensioners-Inspect for any damage and repair or replace each component as needed.
Accident With Side Air Bag Deployment - Component Replacement and Inspections
After a collision involving side air bag deployment, replace the following components.
* Inflatable restraint side impact sensors (SIS), on the side of the impact
* Inflatable restraint roof rail module, on the side of the impact (Impala)
* Inflatable restraint side impact module, on the side of the impact (Monte Carlo)
* Inflatable restraint SDM
* Inflatable restraint seat belt retractor pretensioners
Perform additional inspections on the following components.
* Mounting points or mounting hardware for the SIS-Inspect for any damage and repair or replace
each component as needed.
* Mounting points or mounting hardware for the roof rail module (Impala) on the side of
impact-Inspect for any damage and repair or replace each component as needed.
* Mounting points or mounting hardware for the side impact module (Monte Carlo) on the side of
impact-Inspect for any damage and repair or replace each component as needed.
* Mounting points or mounting hardware for the SDM and seat belt retractor pretensioners-Inspect
for any damage and repair or replace each component as needed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag(s) Arming and Disarming > System
Information > Service and Repair
Air Bag(s) Arming and Disarming: Service and Repair
SIR Disabling and Enabling
SIR component location affects how a vehicle should be serviced. There are parts of the SIR
system installed in various locations around a vehicle. To find the location of the SIR components
refer to SIR Identification Views.
There are several reasons for disabling the SIR system, such as repairs to the SIR system or
servicing a component near or attached to an SIR component. There are several ways to disable
the SIR system depending on what type of service is being performed. The following information
covers the proper procedures for disabling/enabling the SIR system.
SIR Service Precautions
Caution: When performing service on or near the SIR components or the SIR wiring, the SIR
system must be disabled. Failure to observe the correct procedure could cause deployment of the
SIR components. Serious injury can occur. Failure to observe the correct procedure could also
result in unnecessary SIR system repairs.
The inflatable restraint sensing and diagnostic module (SDM) maintains a reserved energy supply.
The reserved energy supply provides deployment power for the air bags if the SDM loses battery
power during a collision. Deployment power is available for as much as 1 minute after
disconnecting the vehicle power. Waiting 1 minute before working on the system after disabling the
SIR system prevents deployment of the air bags from the reserved energy supply.
General Service Instructions
The following are general service instructions which must be followed in order to properly repair the
vehicle and return it to its original integrity:
* Do not expose inflator modules to temperatures above 65°C (150°F).
* Verify the correct replacement part number. Do not substitute a component from a different
vehicle.
* Use only original GM replacement parts available from your authorized GM dealer. Do not use
salvaged parts for repairs to the SIR system.
Discard any of the following components if it has been dropped from a height of 91 cm (3 feet) or
greater:
* Inflatable restraint sensing and diagnostic module (SDM)
* Any Inflatable restraint air bag module
* Inflatable restraint steering wheel module coil
* Any Inflatable restraint sensor
* Inflatable restraint seat belt pretensioners
* Inflatable restraint Passenger Presence System (PPS) module or sensor
Disabling Procedure - Air Bag Fuse
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position.
Important: The SDM may have more than one fused power input. To ensure there is no unwanted
SIR deployment, personal injury, or unnecessary SIR system repairs, remove all fuses supplying
power to the SDM. With all SDM fuses removed and the ignition switch in the ON position, the AIR
BAG warning indicator illuminates. This is normal operation, and does not indicate a SIR system
malfunction.
3. Locate and remove the fuse(s) supplying power to the SDM. 4. Wait 1 minute before working on
the system.
Enabling Procedure - Air Bag Fuse
1. Place the ignition in the OFF position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag(s) Arming and Disarming > System
Information > Service and Repair > Page 13861
2. Install the fuse(s) supplying power to the SDM. 3. Turn the ignition switch to the ON position.
The AIR BAG indicator will flash then turn OFF. 4. Perform the Diagnostic System Check - Vehicle
if the AIR BAG warning indicator does not operate as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Disabling Procedure - Negative Battery Cable
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position. 3. Disconnect the negative battery cable from the battery. 4. Wait 1
minute before working on system.
Enabling Procedure - Negative Battery Cable
1. Place the ignition in the OFF position. 2. Connect the negative battery cable to the battery. 3.
Turn the ignition switch to the ON position. The AIR BAG indicator will flash then turn OFF. 4.
Perform the Diagnostic System Check - Vehicle if the AIR BAG warning indicator does not operate
as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag > Air Bag Harness > Component
Information > Technical Service Bulletins > Customer Interest for Air Bag Harness: > 08-09-41-002F > Jun > 10 > Restraints
- Air Bag Lamp ON/Multiple DTC Set
Air Bag Harness: Customer Interest Restraints - Air Bag Lamp ON/Multiple DTC Set
TECHNICAL
Bulletin No.: 08-09-41-002F
Date: June 10, 2010
Subject: Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent
AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020,
B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set (Inspect and Replace Connector
Position Assurance (CPA) Retainer)
Models:
2005-2007 Buick Rainier 2006-2009 Buick Allure (Canada only), LaCrosse, Lucerne 2008-2010
Buick Enclave 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade Models 2008-2009 Cadillac
SRX, XLR 2008-2010 Cadillac CTS, STS 2005-2006 Chevrolet SSR 2005-2009 Chevrolet
TrailBlazer, TrailBlazer EXT 2005-2010 Chevrolet Cobalt 2006-2007 Chevrolet Monte Carlo
2006-2010 Chevrolet Corvette, HHR, Impala, Malibu Models (includes Malibu Classic) 2007-2009
Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2008-2010
Chevrolet Express 2009-2010 Chevrolet Traverse 2005-2009 GMC Envoy Models 2007-2010 GMC
Acadia, Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2008-2010 GMC Savana
2005-2006 Pontiac Pursuit 2005-2009 Pontiac G6 2006-2009 Pontiac Solstice 2007-2009 Pontiac
G5, Torrent 2008-2009 Pontiac G8 2005-2009 Saab 9-7X 2007-2009 Saturn AURA, OUTLOOK,
SKY 2008-2009 Saturn VUE 2008-2009 HUMMER H2 2007-2008 Daewoo G2X 2007-2009 Opel
GT
Supercede: This bulletin is being revised to update the Warranty Information and add Saab
Warranty Information. Please discard Corporate Bulletin Number 08-09-41-002E (Section 09 Restraints).
Condition
- Some customers may comment on an intermittent or current AIR BAG indicator or lamp being
illuminated on the instrument panel cluster (IPC). Important This bulletin only applies to the
following DTCs:
- Technicians may observe DTC(s) B0012 04, 0D, 0E; B0013 04, 0D, 0E; B0015 04, 0D, 0E;
B0016 04, 0D, 0E; B0019 04, 0D, 0E; B0020 04, 0D, 0E; B0022, B0023 04, 0D, 0E; B0033 04, 0D,
0E; B0040 04, 0D, 0E; B0042 or B0044 set as Current or in History in the sensing and diagnostic
module (SDM).
Cause
This condition may be caused by a loose, missing, or damaged connector position assurance
(CPA) retainer at a supplemental inflatable restraint (SIR) module electrical connector, or a
deployment loop wiring harness electrical connector.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag > Air Bag Harness > Component
Information > Technical Service Bulletins > Customer Interest for Air Bag Harness: > 08-09-41-002F > Jun > 10 > Restraints
- Air Bag Lamp ON/Multiple DTC Set > Page 13871
Caution
When performing service on or near the SIR components or the SIR wiring, the SIR system must
be disabled. Failure to observe the correct procedure could cause deployment of the SIR
components. Serious injury can occur. Failure to observe the correct procedure could also result in
unnecessary SIR system repairs.
1. Perform the Diagnostic System Check-Vehicle. 2. Identify the DTC that is set AND review the
DTC Descriptor in the corresponding diagnostic procedure. Refer to Diagnostic Trouble Code
(DTC)
List-Vehicle in SI.
3. Using the information from the DTC Descriptor, determine the location of the affected electrical
connector. Refer to SIR Identification Views and
the Master Electrical Component List in SI.
4. Turn OFF the ignition and disable the supplemental inflatable restraint (SIR) system. Refer to
SIR Disabling and Enabling in SI. 5. BEFORE removing, INSPECT the CPA retainer at the
electrical connector.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
‹› If the CPA retainer is loose, damaged, or will not seat in the connector, replace it with a new one.
Reinstall the CPA correctly by first pushing
the connector body in completely, and then pushing the CPA retainer in completely.
‹› If the CPA retainer is not loose or damaged and is properly seated, proceed to Step 6.
6. Remove the CPA retainer and disconnect the electrical connector. Inspect the terminals for the
following conditions:
- Corrosion
- Contamination
- Terminal tension
- Damage
Important The terminals in the SIR/SRS system are made with a special plating. This plating
provides the necessary contact integrity for the sensitive, low energy circuits. Use the J-38125
SIR/SRS Terminal Repair Kit for repairing SIR/SRS terminals and connectors. DO NOT substitute
any other terminals for those in the repair kit.
‹› If the terminals are damaged, corrosion is observed, or have poor tension, repair or replace as
necessary. Apply dielectric grease, GM P/N
12345579 (in Canada, use P/N 10953481) on the connector pins and terminals when
reassembling. Refer to SIR/SRS Wiring Repairs in SI.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
7. Connect the electrical connector, and install the CPA retainer. 8. Enable the supplemental
inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling in SI. 9. Clear the DTC with a
scan tool.
10. Verify that the DTC does not reset by performing the Diagnostic Repair Verification in SI.
‹› If any DTC resets, then refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Parts Information
Note
If the CPA retainer P/N 54590003 (Orange CPA) cannot be located in the J-38125 SIR/SRS
terminal repair kit, contact Kent Moore Tools and order P/N 54590003-PKG to obtain a package of
5.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag > Air Bag Harness > Component
Information > Technical Service Bulletins > Customer Interest for Air Bag Harness: > 08-09-41-002F > Jun > 10 > Restraints
- Air Bag Lamp ON/Multiple DTC Set > Page 13872
Warranty Information (excluding Saab U.S. Models)
Important Select the appropriate Labor Operation for the repair that is performed.
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag > Air Bag Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Harness: > 08-09-41-002F > Jun > 10
> Restraints - Air Bag Lamp ON/Multiple DTC Set
Air Bag Harness: All Technical Service Bulletins Restraints - Air Bag Lamp ON/Multiple DTC Set
TECHNICAL
Bulletin No.: 08-09-41-002F
Date: June 10, 2010
Subject: Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent
AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020,
B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set (Inspect and Replace Connector
Position Assurance (CPA) Retainer)
Models:
2005-2007 Buick Rainier 2006-2009 Buick Allure (Canada only), LaCrosse, Lucerne 2008-2010
Buick Enclave 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade Models 2008-2009 Cadillac
SRX, XLR 2008-2010 Cadillac CTS, STS 2005-2006 Chevrolet SSR 2005-2009 Chevrolet
TrailBlazer, TrailBlazer EXT 2005-2010 Chevrolet Cobalt 2006-2007 Chevrolet Monte Carlo
2006-2010 Chevrolet Corvette, HHR, Impala, Malibu Models (includes Malibu Classic) 2007-2009
Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2008-2010
Chevrolet Express 2009-2010 Chevrolet Traverse 2005-2009 GMC Envoy Models 2007-2010 GMC
Acadia, Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2008-2010 GMC Savana
2005-2006 Pontiac Pursuit 2005-2009 Pontiac G6 2006-2009 Pontiac Solstice 2007-2009 Pontiac
G5, Torrent 2008-2009 Pontiac G8 2005-2009 Saab 9-7X 2007-2009 Saturn AURA, OUTLOOK,
SKY 2008-2009 Saturn VUE 2008-2009 HUMMER H2 2007-2008 Daewoo G2X 2007-2009 Opel
GT
Supercede: This bulletin is being revised to update the Warranty Information and add Saab
Warranty Information. Please discard Corporate Bulletin Number 08-09-41-002E (Section 09 Restraints).
Condition
- Some customers may comment on an intermittent or current AIR BAG indicator or lamp being
illuminated on the instrument panel cluster (IPC). Important This bulletin only applies to the
following DTCs:
- Technicians may observe DTC(s) B0012 04, 0D, 0E; B0013 04, 0D, 0E; B0015 04, 0D, 0E;
B0016 04, 0D, 0E; B0019 04, 0D, 0E; B0020 04, 0D, 0E; B0022, B0023 04, 0D, 0E; B0033 04, 0D,
0E; B0040 04, 0D, 0E; B0042 or B0044 set as Current or in History in the sensing and diagnostic
module (SDM).
Cause
This condition may be caused by a loose, missing, or damaged connector position assurance
(CPA) retainer at a supplemental inflatable restraint (SIR) module electrical connector, or a
deployment loop wiring harness electrical connector.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag > Air Bag Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Harness: > 08-09-41-002F > Jun > 10
> Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 13878
Caution
When performing service on or near the SIR components or the SIR wiring, the SIR system must
be disabled. Failure to observe the correct procedure could cause deployment of the SIR
components. Serious injury can occur. Failure to observe the correct procedure could also result in
unnecessary SIR system repairs.
1. Perform the Diagnostic System Check-Vehicle. 2. Identify the DTC that is set AND review the
DTC Descriptor in the corresponding diagnostic procedure. Refer to Diagnostic Trouble Code
(DTC)
List-Vehicle in SI.
3. Using the information from the DTC Descriptor, determine the location of the affected electrical
connector. Refer to SIR Identification Views and
the Master Electrical Component List in SI.
4. Turn OFF the ignition and disable the supplemental inflatable restraint (SIR) system. Refer to
SIR Disabling and Enabling in SI. 5. BEFORE removing, INSPECT the CPA retainer at the
electrical connector.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
‹› If the CPA retainer is loose, damaged, or will not seat in the connector, replace it with a new one.
Reinstall the CPA correctly by first pushing
the connector body in completely, and then pushing the CPA retainer in completely.
‹› If the CPA retainer is not loose or damaged and is properly seated, proceed to Step 6.
6. Remove the CPA retainer and disconnect the electrical connector. Inspect the terminals for the
following conditions:
- Corrosion
- Contamination
- Terminal tension
- Damage
Important The terminals in the SIR/SRS system are made with a special plating. This plating
provides the necessary contact integrity for the sensitive, low energy circuits. Use the J-38125
SIR/SRS Terminal Repair Kit for repairing SIR/SRS terminals and connectors. DO NOT substitute
any other terminals for those in the repair kit.
‹› If the terminals are damaged, corrosion is observed, or have poor tension, repair or replace as
necessary. Apply dielectric grease, GM P/N
12345579 (in Canada, use P/N 10953481) on the connector pins and terminals when
reassembling. Refer to SIR/SRS Wiring Repairs in SI.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
7. Connect the electrical connector, and install the CPA retainer. 8. Enable the supplemental
inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling in SI. 9. Clear the DTC with a
scan tool.
10. Verify that the DTC does not reset by performing the Diagnostic Repair Verification in SI.
‹› If any DTC resets, then refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Parts Information
Note
If the CPA retainer P/N 54590003 (Orange CPA) cannot be located in the J-38125 SIR/SRS
terminal repair kit, contact Kent Moore Tools and order P/N 54590003-PKG to obtain a package of
5.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag > Air Bag Harness > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Harness: > 08-09-41-002F > Jun > 10
> Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 13879
Warranty Information (excluding Saab U.S. Models)
Important Select the appropriate Labor Operation for the repair that is performed.
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 08-09-41-002F > Jun > 10 > Restraints - Air
Bag Lamp ON/Multiple DTC Set
Air Bag Control Module: Customer Interest Restraints - Air Bag Lamp ON/Multiple DTC Set
TECHNICAL
Bulletin No.: 08-09-41-002F
Date: June 10, 2010
Subject: Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent
AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020,
B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set (Inspect and Replace Connector
Position Assurance (CPA) Retainer)
Models:
2005-2007 Buick Rainier 2006-2009 Buick Allure (Canada only), LaCrosse, Lucerne 2008-2010
Buick Enclave 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade Models 2008-2009 Cadillac
SRX, XLR 2008-2010 Cadillac CTS, STS 2005-2006 Chevrolet SSR 2005-2009 Chevrolet
TrailBlazer, TrailBlazer EXT 2005-2010 Chevrolet Cobalt 2006-2007 Chevrolet Monte Carlo
2006-2010 Chevrolet Corvette, HHR, Impala, Malibu Models (includes Malibu Classic) 2007-2009
Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2008-2010
Chevrolet Express 2009-2010 Chevrolet Traverse 2005-2009 GMC Envoy Models 2007-2010 GMC
Acadia, Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2008-2010 GMC Savana
2005-2006 Pontiac Pursuit 2005-2009 Pontiac G6 2006-2009 Pontiac Solstice 2007-2009 Pontiac
G5, Torrent 2008-2009 Pontiac G8 2005-2009 Saab 9-7X 2007-2009 Saturn AURA, OUTLOOK,
SKY 2008-2009 Saturn VUE 2008-2009 HUMMER H2 2007-2008 Daewoo G2X 2007-2009 Opel
GT
Supercede: This bulletin is being revised to update the Warranty Information and add Saab
Warranty Information. Please discard Corporate Bulletin Number 08-09-41-002E (Section 09 Restraints).
Condition
- Some customers may comment on an intermittent or current AIR BAG indicator or lamp being
illuminated on the instrument panel cluster (IPC). Important This bulletin only applies to the
following DTCs:
- Technicians may observe DTC(s) B0012 04, 0D, 0E; B0013 04, 0D, 0E; B0015 04, 0D, 0E;
B0016 04, 0D, 0E; B0019 04, 0D, 0E; B0020 04, 0D, 0E; B0022, B0023 04, 0D, 0E; B0033 04, 0D,
0E; B0040 04, 0D, 0E; B0042 or B0044 set as Current or in History in the sensing and diagnostic
module (SDM).
Cause
This condition may be caused by a loose, missing, or damaged connector position assurance
(CPA) retainer at a supplemental inflatable restraint (SIR) module electrical connector, or a
deployment loop wiring harness electrical connector.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 08-09-41-002F > Jun > 10 > Restraints - Air
Bag Lamp ON/Multiple DTC Set > Page 13888
Caution
When performing service on or near the SIR components or the SIR wiring, the SIR system must
be disabled. Failure to observe the correct procedure could cause deployment of the SIR
components. Serious injury can occur. Failure to observe the correct procedure could also result in
unnecessary SIR system repairs.
1. Perform the Diagnostic System Check-Vehicle. 2. Identify the DTC that is set AND review the
DTC Descriptor in the corresponding diagnostic procedure. Refer to Diagnostic Trouble Code
(DTC)
List-Vehicle in SI.
3. Using the information from the DTC Descriptor, determine the location of the affected electrical
connector. Refer to SIR Identification Views and
the Master Electrical Component List in SI.
4. Turn OFF the ignition and disable the supplemental inflatable restraint (SIR) system. Refer to
SIR Disabling and Enabling in SI. 5. BEFORE removing, INSPECT the CPA retainer at the
electrical connector.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
‹› If the CPA retainer is loose, damaged, or will not seat in the connector, replace it with a new one.
Reinstall the CPA correctly by first pushing
the connector body in completely, and then pushing the CPA retainer in completely.
‹› If the CPA retainer is not loose or damaged and is properly seated, proceed to Step 6.
6. Remove the CPA retainer and disconnect the electrical connector. Inspect the terminals for the
following conditions:
- Corrosion
- Contamination
- Terminal tension
- Damage
Important The terminals in the SIR/SRS system are made with a special plating. This plating
provides the necessary contact integrity for the sensitive, low energy circuits. Use the J-38125
SIR/SRS Terminal Repair Kit for repairing SIR/SRS terminals and connectors. DO NOT substitute
any other terminals for those in the repair kit.
‹› If the terminals are damaged, corrosion is observed, or have poor tension, repair or replace as
necessary. Apply dielectric grease, GM P/N
12345579 (in Canada, use P/N 10953481) on the connector pins and terminals when
reassembling. Refer to SIR/SRS Wiring Repairs in SI.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
7. Connect the electrical connector, and install the CPA retainer. 8. Enable the supplemental
inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling in SI. 9. Clear the DTC with a
scan tool.
10. Verify that the DTC does not reset by performing the Diagnostic Repair Verification in SI.
‹› If any DTC resets, then refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Parts Information
Note
If the CPA retainer P/N 54590003 (Orange CPA) cannot be located in the J-38125 SIR/SRS
terminal repair kit, contact Kent Moore Tools and order P/N 54590003-PKG to obtain a package of
5.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 08-09-41-002F > Jun > 10 > Restraints - Air
Bag Lamp ON/Multiple DTC Set > Page 13889
Warranty Information (excluding Saab U.S. Models)
Important Select the appropriate Labor Operation for the repair that is performed.
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 06-09-41-006D > Dec > 07 > Restraints Airbag Light On/DTC B0081 Set
Air Bag Control Module: Customer Interest Restraints - Airbag Light On/DTC B0081 Set
Bulletin No.: 06-09-41-006D
Date: December 13, 2007
TECHNICAL
Subject: Airbag Light On, DTC B0081 Set (Clear DTC Using Specific Procedure)
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
Supercede:
This bulletin is being revised to add the 2008 model year. Please discard Corporate Bulletin
Number 06-09-41-006C (Section 09 - Restraints).
Condition
Some customers may comment on the airbag light being illuminated. Upon investigation, the
technician may find DTC B0081 with symptom code 0F or 5A set.
Cause
This condition may be caused by a low state of charge or a dead battery in the vehicle.
Correction
The code can be cleared using the following procedure. Once the code is cleared, the airbag light
will go out. Key ON and engine OFF.
Use the scan tool to perform the Re-Zero Passenger Presence System within the Module Setup of
the Passenger Presence System (PPS).
After all procedures have been successfully completed, retrieve the DTCs from PPS and clear all
the DTCs.
Verify that the airbag light is no longer illuminated.
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 06-09-41-006D > Dec > 07 > Restraints Airbag Light On/DTC B0081 Set > Page 13894
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: > 08-09-41-002F > Jun > 10 >
Restraints - Air Bag Lamp ON/Multiple DTC Set
Air Bag Control Module: All Technical Service Bulletins Restraints - Air Bag Lamp ON/Multiple DTC
Set
TECHNICAL
Bulletin No.: 08-09-41-002F
Date: June 10, 2010
Subject: Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent
AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020,
B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set (Inspect and Replace Connector
Position Assurance (CPA) Retainer)
Models:
2005-2007 Buick Rainier 2006-2009 Buick Allure (Canada only), LaCrosse, Lucerne 2008-2010
Buick Enclave 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade Models 2008-2009 Cadillac
SRX, XLR 2008-2010 Cadillac CTS, STS 2005-2006 Chevrolet SSR 2005-2009 Chevrolet
TrailBlazer, TrailBlazer EXT 2005-2010 Chevrolet Cobalt 2006-2007 Chevrolet Monte Carlo
2006-2010 Chevrolet Corvette, HHR, Impala, Malibu Models (includes Malibu Classic) 2007-2009
Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2008-2010
Chevrolet Express 2009-2010 Chevrolet Traverse 2005-2009 GMC Envoy Models 2007-2010 GMC
Acadia, Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2008-2010 GMC Savana
2005-2006 Pontiac Pursuit 2005-2009 Pontiac G6 2006-2009 Pontiac Solstice 2007-2009 Pontiac
G5, Torrent 2008-2009 Pontiac G8 2005-2009 Saab 9-7X 2007-2009 Saturn AURA, OUTLOOK,
SKY 2008-2009 Saturn VUE 2008-2009 HUMMER H2 2007-2008 Daewoo G2X 2007-2009 Opel
GT
Supercede: This bulletin is being revised to update the Warranty Information and add Saab
Warranty Information. Please discard Corporate Bulletin Number 08-09-41-002E (Section 09 Restraints).
Condition
- Some customers may comment on an intermittent or current AIR BAG indicator or lamp being
illuminated on the instrument panel cluster (IPC). Important This bulletin only applies to the
following DTCs:
- Technicians may observe DTC(s) B0012 04, 0D, 0E; B0013 04, 0D, 0E; B0015 04, 0D, 0E;
B0016 04, 0D, 0E; B0019 04, 0D, 0E; B0020 04, 0D, 0E; B0022, B0023 04, 0D, 0E; B0033 04, 0D,
0E; B0040 04, 0D, 0E; B0042 or B0044 set as Current or in History in the sensing and diagnostic
module (SDM).
Cause
This condition may be caused by a loose, missing, or damaged connector position assurance
(CPA) retainer at a supplemental inflatable restraint (SIR) module electrical connector, or a
deployment loop wiring harness electrical connector.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: > 08-09-41-002F > Jun > 10 >
Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 13900
Caution
When performing service on or near the SIR components or the SIR wiring, the SIR system must
be disabled. Failure to observe the correct procedure could cause deployment of the SIR
components. Serious injury can occur. Failure to observe the correct procedure could also result in
unnecessary SIR system repairs.
1. Perform the Diagnostic System Check-Vehicle. 2. Identify the DTC that is set AND review the
DTC Descriptor in the corresponding diagnostic procedure. Refer to Diagnostic Trouble Code
(DTC)
List-Vehicle in SI.
3. Using the information from the DTC Descriptor, determine the location of the affected electrical
connector. Refer to SIR Identification Views and
the Master Electrical Component List in SI.
4. Turn OFF the ignition and disable the supplemental inflatable restraint (SIR) system. Refer to
SIR Disabling and Enabling in SI. 5. BEFORE removing, INSPECT the CPA retainer at the
electrical connector.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
‹› If the CPA retainer is loose, damaged, or will not seat in the connector, replace it with a new one.
Reinstall the CPA correctly by first pushing
the connector body in completely, and then pushing the CPA retainer in completely.
‹› If the CPA retainer is not loose or damaged and is properly seated, proceed to Step 6.
6. Remove the CPA retainer and disconnect the electrical connector. Inspect the terminals for the
following conditions:
- Corrosion
- Contamination
- Terminal tension
- Damage
Important The terminals in the SIR/SRS system are made with a special plating. This plating
provides the necessary contact integrity for the sensitive, low energy circuits. Use the J-38125
SIR/SRS Terminal Repair Kit for repairing SIR/SRS terminals and connectors. DO NOT substitute
any other terminals for those in the repair kit.
‹› If the terminals are damaged, corrosion is observed, or have poor tension, repair or replace as
necessary. Apply dielectric grease, GM P/N
12345579 (in Canada, use P/N 10953481) on the connector pins and terminals when
reassembling. Refer to SIR/SRS Wiring Repairs in SI.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
7. Connect the electrical connector, and install the CPA retainer. 8. Enable the supplemental
inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling in SI. 9. Clear the DTC with a
scan tool.
10. Verify that the DTC does not reset by performing the Diagnostic Repair Verification in SI.
‹› If any DTC resets, then refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Parts Information
Note
If the CPA retainer P/N 54590003 (Orange CPA) cannot be located in the J-38125 SIR/SRS
terminal repair kit, contact Kent Moore Tools and order P/N 54590003-PKG to obtain a package of
5.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: > 08-09-41-002F > Jun > 10 >
Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 13901
Warranty Information (excluding Saab U.S. Models)
Important Select the appropriate Labor Operation for the repair that is performed.
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: > 06-09-41-006D > Dec > 07 >
Restraints - Airbag Light On/DTC B0081 Set
Air Bag Control Module: All Technical Service Bulletins Restraints - Airbag Light On/DTC B0081
Set
Bulletin No.: 06-09-41-006D
Date: December 13, 2007
TECHNICAL
Subject: Airbag Light On, DTC B0081 Set (Clear DTC Using Specific Procedure)
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
Supercede:
This bulletin is being revised to add the 2008 model year. Please discard Corporate Bulletin
Number 06-09-41-006C (Section 09 - Restraints).
Condition
Some customers may comment on the airbag light being illuminated. Upon investigation, the
technician may find DTC B0081 with symptom code 0F or 5A set.
Cause
This condition may be caused by a low state of charge or a dead battery in the vehicle.
Correction
The code can be cleared using the following procedure. Once the code is cleared, the airbag light
will go out. Key ON and engine OFF.
Use the scan tool to perform the Re-Zero Passenger Presence System within the Module Setup of
the Passenger Presence System (PPS).
After all procedures have been successfully completed, retrieve the DTCs from PPS and clear all
the DTCs.
Verify that the airbag light is no longer illuminated.
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: > 06-09-41-006D > Dec > 07 >
Restraints - Airbag Light On/DTC B0081 Set > Page 13906
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > Page 13907
Air Bag Control Module: Locations
SIR Component Views
Center of the Floor
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > Page 13908
Air Bag Control Module: Diagrams
SIR Connector End Views
Inflatable Restraint Sensing and Diagnostic Module (SDM) (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > Page 13909
Inflatable Restraint Sensing and Diagnostic Module (SDM) (-ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > Page 13910
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Air Bag Control Module > Component Information >
Technical Service Bulletins > Page 13911
Air Bag Control Module: Service and Repair
Inflatable Restraint Sensing and Diagnostic Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Clockspring Assembly / Spiral Cable, Air Bag >
Component Information > Diagrams
Clockspring Assembly / Spiral Cable: Diagrams
SIR Connector End Views
Inflatable Restraint Steering Wheel Module Coil
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Clockspring Assembly / Spiral Cable, Air Bag >
Component Information > Service and Repair > Procedures
Clockspring Assembly / Spiral Cable: Procedures
Inflatable Restraint Steering Wheel Module Coil Centering
Notice: The new SIR coil assembly will be centered. Improper alignment of the SIR coil assembly
may damage the unit, causing an inflatable restraint malfunction.
1. Verify the following conditions before centering the SIR coil:
* The wheels on the vehicle are straight ahead.
* The block tooth and the centering mark (1) of the steering shaft assembly is in the 12 o'clock
position.
2. If available, remove the yellow retaining tab (1) from the SIR coil and save the tab for
reassembly. 3. Hold the SIR coil face up by the casing (2).
1. Slowly turn the coil hub (3) clockwise until the coil ribbon stops. 2. Slowly rotate the coil hub (3)
counterclockwise 2.5 revolutions until the centering window (4) turns yellow. This indicates the
CENTER
position.
Important: If the retaining tab is not available, the use of tape to secure the coil is recommended for
installation to the steering column.
4. Install the yellow retaining tab (1) to the SIR coil. 5. Slide the centered SIR coil onto the steering
shaft assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Clockspring Assembly / Spiral Cable, Air Bag >
Component Information > Service and Repair > Procedures > Page 13917
Clockspring Assembly / Spiral Cable: Removal and Replacement
Inflatable Restraint Steering Wheel Module Coil Replacement
Removal Procedure
Notice: The new SIR coil assembly will be centered. Improper alignment of the SIR coil assembly
may damage the unit, causing an inflatable restraint malfunction.
1. Place the front wheels in the straight forward position with the steering wheel centered. 2.
Disable the SIR system. Refer to SIR Disabling and Enabling. See: Air Bag(s) Arming and
Disarming/Service and Repair 3. Remove the inflatable restraint steering wheel module. 4. Remove
the steering wheel. 5. Remove the steering column covers.
6. Release the SIR coil harness clips from the bracket below the column. 7. Disconnect both the
SIR coil and horn/cruise connectors. 8. Using a small flat-bladed tool, carefully pry the retaining
tabs away from the SIR coil assembly and slide the SIR coil assembly off the steering
column.
Installation Procedure
Important: A new roll connector is equipped with a yellow tab that is removed after the steering
wheel is installed. This tab passes through the steering wheel.
1. Route the SIR wiring harness and horn/cruise connector down steering column.
2. Snap the SIR coil into position on the column. 3. Connect the SIR coil and horn/cruise electrical
connectors. 4. Attach the wiring harness clips to the bracket below the column.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Clockspring Assembly / Spiral Cable, Air Bag >
Component Information > Service and Repair > Procedures > Page 13918
5. Install the steering column covers. 6. Install the steering wheel. 7. Install the inflatable restraint
steering wheel module. 8. Enable the SIR system. Refer to SIR Disabling and Enabling. See: Air
Bag(s) Arming and Disarming/Service and Repair
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Impact Sensor > Component Information >
Locations
Impact Sensor: Locations
SIR Component Views
Near the Hood Latch
1 - Inflatable Restraint Front End Sensor 2 - Radiator Core Support 3 - Cooling Fan - Right 4 Cooling Fan - Left
Center of the Floor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Impact Sensor > Component Information >
Locations > Page 13922
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Impact Sensor > Component Information >
Locations > Page 13923
Impact Sensor: Diagrams
SIR Connector End Views
Inflatable Restraint Front End Sensor
Inflatable Restraint Side Impact Sensor (SIS) - Left
Inflatable Restraint Side Impact Sensor (SIS) - Right
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Impact Sensor > Component Information >
Locations > Page 13924
Inflatable Restraint Vehicle Rollover Sensor (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Impact Sensor > Component Information > Service
and Repair > Inflatable Restraint Front End Sensor Replacement
Impact Sensor: Service and Repair Inflatable Restraint Front End Sensor Replacement
Inflatable Restraint Front End Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Impact Sensor > Component Information > Service
and Repair > Inflatable Restraint Front End Sensor Replacement > Page 13927
Impact Sensor: Service and Repair Inflatable Restraint Vehicle Rollover Sensor Replacement
Inflatable Restraint Vehicle Rollover Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Impact Sensor > Component Information > Service
and Repair > Inflatable Restraint Front End Sensor Replacement > Page 13928
Impact Sensor: Service and Repair Inflatable Restraint Side Impact Sensor Replacement
Inflatable Restraint Side Impact Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Impact Sensor > Component Information > Service
and Repair > Inflatable Restraint Front End Sensor Replacement > Page 13929
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Error > Page 13938
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Error > Page 13939
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Error > Page 13940
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Error > Page 13941
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Update > Page 13946
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Update > Page 13947
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Update > Page 13948
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > Recalls: > NHTSA07V344000 > Aug > 07 > Recall 07V344000:
Seat Occupant System Reprogramming
Seat Occupant Classification Module - Air Bag: Recalls Recall 07V344000: Seat Occupant System
Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > Customer Interest: > 08-09-41-004 > Mar > 08 > Restraints - AIr
Bag Lamp ON/DTC B1000 Set
Seat Occupant Classification Module - Air Bag: Customer Interest Restraints - AIr Bag Lamp
ON/DTC B1000 Set
TECHNICAL
Bulletin No.: 08-09-41-004
Date: March 12, 2008
Subject: Airbag Light On, DTC B1000 Set (Reprogram Passenger Presence System (PPS)
Module)
Models: 2008 Buick Enclave 2005-2008 Cadillac SRX 2005-2008 Chevrolet Equinox 2007-2008
GMC Acadia 2006-2008 Pontiac Torrent 2007-2008 Saturn OUTLOOK 2007-2008 Suzuki XL-7
Condition
Some customers may comment on the airbag light being illuminated.
Upon investigation, the technician may find DTC B1000 with symptom code 37 set as current or in
history.
Correction
Important:
You must contact Techline to obtain a VCI number.
New software for the Passenger Presence System (PPS) has been released to disable this
diagnostic check to prevent false setting of DTC B1000. Reprogram the PPS module with updated
calibration files using the TIS2WEB Service Programming System (SPS) application. As always,
make sure your Tech 2(R) is updated with the latest software version.
Perform a PPS rezero/preload procedure upon a successful module reprogramming event.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Classification
Module - Air Bag: > 08-09-41-004 > Mar > 08 > Restraints - AIr Bag Lamp ON/DTC B1000 Set
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Restraints - AIr Bag
Lamp ON/DTC B1000 Set
TECHNICAL
Bulletin No.: 08-09-41-004
Date: March 12, 2008
Subject: Airbag Light On, DTC B1000 Set (Reprogram Passenger Presence System (PPS)
Module)
Models: 2008 Buick Enclave 2005-2008 Cadillac SRX 2005-2008 Chevrolet Equinox 2007-2008
GMC Acadia 2006-2008 Pontiac Torrent 2007-2008 Saturn OUTLOOK 2007-2008 Suzuki XL-7
Condition
Some customers may comment on the airbag light being illuminated.
Upon investigation, the technician may find DTC B1000 with symptom code 37 set as current or in
history.
Correction
Important:
You must contact Techline to obtain a VCI number.
New software for the Passenger Presence System (PPS) has been released to disable this
diagnostic check to prevent false setting of DTC B1000. Reprogram the PPS module with updated
calibration files using the TIS2WEB Service Programming System (SPS) application. As always,
make sure your Tech 2(R) is updated with the latest software version.
Perform a PPS rezero/preload procedure upon a successful module reprogramming event.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Classification
Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Classification
Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 13967
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Classification
Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 13968
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Classification
Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 13969
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Classification
Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 13970
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Classification
Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Classification
Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 13975
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Classification
Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 13976
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Classification
Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 13977
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Classification
Module - Air Bag: > NHTSA07V344000 > Aug > 07 > Recall 07V344000: Seat Occupant System Reprogramming
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Recall 07V344000:
Seat Occupant System Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Classification Module
- Air Bag: > 99-01-39-004C > Jun > 09 > A/C - Musty Odors Emitted From (HVAC) System
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Restraints - AIr Bag
Lamp ON/DTC B1000 Set
TECHNICAL
Bulletin No.: 08-09-41-004
Date: March 12, 2008
Subject: Airbag Light On, DTC B1000 Set (Reprogram Passenger Presence System (PPS)
Module)
Models: 2008 Buick Enclave 2005-2008 Cadillac SRX 2005-2008 Chevrolet Equinox 2007-2008
GMC Acadia 2006-2008 Pontiac Torrent 2007-2008 Saturn OUTLOOK 2007-2008 Suzuki XL-7
Condition
Some customers may comment on the airbag light being illuminated.
Upon investigation, the technician may find DTC B1000 with symptom code 37 set as current or in
history.
Correction
Important:
You must contact Techline to obtain a VCI number.
New software for the Passenger Presence System (PPS) has been released to disable this
diagnostic check to prevent false setting of DTC B1000. Reprogram the PPS module with updated
calibration files using the TIS2WEB Service Programming System (SPS) application. As always,
make sure your Tech 2(R) is updated with the latest software version.
Perform a PPS rezero/preload procedure upon a successful module reprogramming event.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Classification Module
- Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Classification Module
- Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 13992
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Classification Module
- Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 13993
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Classification Module
- Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 13994
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Classification Module
- Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 13995
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Classification Module
- Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Classification Module
- Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 14000
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Classification Module
- Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 14001
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Classification Module
- Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 14002
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Classification Module - Air Bag >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Classification Module
- Air Bag: > NHTSA07V344000 > Aug > 07 > Recall 07V344000: Seat Occupant System Reprogramming
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Recall 07V344000:
Seat Occupant System Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 14015
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 14016
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 14017
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 14018
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page
14023
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page
14024
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page
14025
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > Recalls: > NHTSA07V344000 > Aug > 07 > Recall 07V344000: Seat Occupant System
Reprogramming
Seat Occupant Sensor: Recalls Recall 07V344000: Seat Occupant System Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 06-08-50-009F > Dec > 10 >
Restraints - Passenger Presence System Information
Seat Occupant Sensor: All Technical Service Bulletins Restraints - Passenger Presence System
Information
INFORMATION
Bulletin No.: 06-08-50-009F
Date: December 23, 2010
Subject: Information on Passenger Presence Sensing System (PPS or PSS) Concerns With
Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices
Models:
2011 and Prior GM Passenger Cars and Trucks Equipped with Passenger Presence Sensing
System
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 06-08-50-009E (Section 08 - Body and Accessories).
Concerns About Safety and Alterations to the Front Passenger Seat
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE THE
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT AS RELEASED BY GM FOR THAT
VEHICLE. DO NOT ALTER THE SEAT COVERS OR SEAT-RELATED EQUIPMENT. ANY
ALTERATIONS TO SEAT COVERS OR GM ACCESSORIES DEFEATS THE INTENDED DESIGN
OF THE SYSTEM. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF
SUCH IMPROPER SEAT ALTERATIONS, INCLUDING ANY WARRANTY REPAIRS INCURRED.
The front passenger seat in many GM vehicles is equipped with a passenger sensing system that
will turn off the right front passenger's frontal airbag under certain conditions, such as when an
infant or child seat is present. In some vehicles, the passenger sensing system will also turn off the
right front passenger's seat mounted side impact airbag. For the system to function properly,
sensors are used in the seat to detect the presence of a properly-seated occupant. The passenger
sensing system may not operate properly if the original seat trim is replaced (1) by non-GM covers,
upholstery or trim, or (2) by GM covers, upholstery or trim designed for a different vehicle or (3) by
GM covers, upholstery or trim that has been altered by a trim shop, or (4) if any object, such as an
aftermarket seat heater or a comfort enhancing pad or device is installed under the seat fabric or
between the occupant and the seat fabric.
Aftermarket Seat Heaters, Custom Upholstery, and Comfort Enhancing Pads or Devices
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE ONLY
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT RELEASED AS GM
ACCESSORIES FOR THAT VEHICLE. DO NOT USE ANY OTHER TYPE OF SEAT COVERS OR
SEAT-RELATED EQUIPMENT, OR GM ACCESSORIES RELEASED FOR OTHER VEHICLE
APPLICATIONS. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF SUCH
IMPROPER SEAT ACCESSORIES, INCLUDING ANY WARRANTY REPAIRS MADE
NECESSARY BY SUCH USE.
Many types of aftermarket accessories are available to customers, upfitting shops, and dealers.
Some of these devices sit on top of, or are Velcro(R) strapped to the seat while others such as seat
heaters are installed under the seat fabric. Additionally, seat covers made of leather or other
materials may have different padding thickness installed that could prevent the Passenger Sensing
System from functioning properly. Never alter the vehicle seats. Never add pads or other devices to
the seat cushion, as this may interfere with the operation of the Passenger Sensing System and
either prevent proper deployment of the passenger airbag or prevent proper suppression of the
passenger air bag.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07174 > Aug > 07 > Recall - Seat
Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07174 > Aug > 07 > Recall - Seat
Occupant Sensor Calibration Error > Page 14039
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07174 > Aug > 07 > Recall - Seat
Occupant Sensor Calibration Error > Page 14040
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07174 > Aug > 07 > Recall - Seat
Occupant Sensor Calibration Error > Page 14041
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07174 > Aug > 07 > Recall - Seat
Occupant Sensor Calibration Error > Page 14042
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07182 > Aug > 07 > Recall - Seat
Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07182 > Aug > 07 > Recall - Seat
Occupant Sensor Calibration Update > Page 14047
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07182 > Aug > 07 > Recall - Seat
Occupant Sensor Calibration Update > Page 14048
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07182 > Aug > 07 > Recall - Seat
Occupant Sensor Calibration Update > Page 14049
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > NHTSA07V344000 > Aug > 07 >
Recall 07V344000: Seat Occupant System Reprogramming
Seat Occupant Sensor: All Technical Service Bulletins Recall 07V344000: Seat Occupant System
Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Seat Occupant Sensor > Component Information >
Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Sensor: > 06-08-50-009F > Dec > 10 >
Restraints - Passenger Presence System Information
Seat Occupant Sensor: All Technical Service Bulletins Restraints - Passenger Presence System
Information
INFORMATION
Bulletin No.: 06-08-50-009F
Date: December 23, 2010
Subject: Information on Passenger Presence Sensing System (PPS or PSS) Concerns With
Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices
Models:
2011 and Prior GM Passenger Cars and Trucks Equipped with Passenger Presence Sensing
System
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 06-08-50-009E (Section 08 - Body and Accessories).
Concerns About Safety and Alterations to the Front Passenger Seat
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE THE
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT AS RELEASED BY GM FOR THAT
VEHICLE. DO NOT ALTER THE SEAT COVERS OR SEAT-RELATED EQUIPMENT. ANY
ALTERATIONS TO SEAT COVERS OR GM ACCESSORIES DEFEATS THE INTENDED DESIGN
OF THE SYSTEM. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF
SUCH IMPROPER SEAT ALTERATIONS, INCLUDING ANY WARRANTY REPAIRS INCURRED.
The front passenger seat in many GM vehicles is equipped with a passenger sensing system that
will turn off the right front passenger's frontal airbag under certain conditions, such as when an
infant or child seat is present. In some vehicles, the passenger sensing system will also turn off the
right front passenger's seat mounted side impact airbag. For the system to function properly,
sensors are used in the seat to detect the presence of a properly-seated occupant. The passenger
sensing system may not operate properly if the original seat trim is replaced (1) by non-GM covers,
upholstery or trim, or (2) by GM covers, upholstery or trim designed for a different vehicle or (3) by
GM covers, upholstery or trim that has been altered by a trim shop, or (4) if any object, such as an
aftermarket seat heater or a comfort enhancing pad or device is installed under the seat fabric or
between the occupant and the seat fabric.
Aftermarket Seat Heaters, Custom Upholstery, and Comfort Enhancing Pads or Devices
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE ONLY
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT RELEASED AS GM
ACCESSORIES FOR THAT VEHICLE. DO NOT USE ANY OTHER TYPE OF SEAT COVERS OR
SEAT-RELATED EQUIPMENT, OR GM ACCESSORIES RELEASED FOR OTHER VEHICLE
APPLICATIONS. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF SUCH
IMPROPER SEAT ACCESSORIES, INCLUDING ANY WARRANTY REPAIRS MADE
NECESSARY BY SUCH USE.
Many types of aftermarket accessories are available to customers, upfitting shops, and dealers.
Some of these devices sit on top of, or are Velcro(R) strapped to the seat while others such as seat
heaters are installed under the seat fabric. Additionally, seat covers made of leather or other
materials may have different padding thickness installed that could prevent the Passenger Sensing
System from functioning properly. Never alter the vehicle seats. Never add pads or other devices to
the seat cushion, as this may interfere with the operation of the Passenger Sensing System and
either prevent proper deployment of the passenger airbag or prevent proper suppression of the
passenger air bag.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Malfunction Lamp / Indicator, Air Bag > Component
Information > Diagrams
Malfunction Lamp / Indicator: Diagrams
SIR Connector End Views
Inflatable Restraint Passenger Air Bag On/Off Indicator
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Air Bag Systems > Malfunction Lamp / Indicator, Air Bag > Component
Information > Diagrams > Page 14062
Malfunction Lamp / Indicator: Service and Repair
Instrument Panel Inflatable Restraint Module Indicator Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > Recalls: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection
Technical Service Bulletin # 07287A Date: 080528
Campaign - Enhanced Head Impact Protection
CUSTOMER SATISFACTION
Bulletin No.: 07287A
Date: May 28, 2008
Subject: 07287A - Increased Head Impact Protection
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Without Head-Curtain Side Impact Air Bags or Without Sunroof
Canadian Vehicles and Certain Export Vehicles
Supercede:
The Parts Information section in this bulletin has been revised to include the part usage for the gray
absorber kit. Please discard all copies of bulletin 07287, issued May 2008.
THIS PROGRAM IS IN EFFECT UNTIL MAY 31, 2009.
Condition
2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without a head-curtain side
impact air bag or without a sunroof not only meet but exceed government standards for head
impact protection. GM has recently made changes that add to that protection. GM is making similar
changes to vehicles built before this change was implemented.
Correction
To enhance head impact protection dealers are to install an energy-absorbing device on the driver
and passenger side headliner.
Vehicles Involved
Involved are certain 2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without
a head-curtain side impact air bag or without a sunroof and built within the VIN breakpoints shown
above.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using the GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles a listing with involved vehicles containing the complete vehicle
identification number customer name and address information has been prepared and will be
provided through GM DealerWorld Recall Information. Dealers will not have a report available if
they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > Recalls: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 14071
Parts Information
Parts required to complete this recall are to be obtained from General Motors Service and Parts
Operations (GMSPO). Please refer to your "involved vehicles listing before ordering parts. Normal
orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation parts
should be ordered on a CSO = Customer Special Order.
Service Procedure
1. Remove the door weather strip.
Notice:
To avoid damaging the headliner and to ensure the headliner tab hole is cut in the correct location,
it is essential to carefully align the template cross hair (1) with the edge of the headliner and the
edge of the A-pillar trim. Use an X-Acto knife or equivalent utility knife to cut the tab hole in the
headliner.
Important:
There is a driver's side and a passenger's side template. The driver's side template is marked "L"
left side, and the passenger's side template is marked "R" right side.
2. Align the template cross hair (1) with the edge of the A-pillar trim and edge of the headliner.
3. Mark the outline for the tab hole using an ink pen.
4. Cut the tab hole using a utility knife.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > Recalls: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 14072
5. Insert the tab of the headliner trim piece into the tab hole.
6. Insert the A-pillar edge of the headliner trim piece (1) under the A-pillar trim (2).
7. Place a piece of Scotch(R) tape (or equivalent transparent tape) along the edge of the headliner
where the U-channel will contact the headliner
8. Push the U-channel edge of the headliner trim piece over the top of the headliner edge.
9. Install the weather strip.
10. Examine the fit of the headliner trim piece to the headliner. Remove or reduce any gap between
the headliner and headliner trim piece by applying pressure to the headliner molding piece if
required.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > Recalls: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 14073
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
Submit a Product Recall Claim with the information shown above.
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers regardless of
mileage, age of vehicle, or ownership, through May 31, 2009.
Customers who have recently purchased vehicles sold from your vehicle inventory and for which
there is no customer information indicated on the dealer listing are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory or is in your
dealership for service through May 31, 2009 you must take the steps necessary to be sure the
recall correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > Recalls: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 14074
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > By Symptom: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection
Technical Service Bulletin # 07287A Date: 080528
Campaign - Enhanced Head Impact Protection
CUSTOMER SATISFACTION
Bulletin No.: 07287A
Date: May 28, 2008
Subject: 07287A - Increased Head Impact Protection
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Without Head-Curtain Side Impact Air Bags or Without Sunroof
Canadian Vehicles and Certain Export Vehicles
Supercede:
The Parts Information section in this bulletin has been revised to include the part usage for the gray
absorber kit. Please discard all copies of bulletin 07287, issued May 2008.
THIS PROGRAM IS IN EFFECT UNTIL MAY 31, 2009.
Condition
2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without a head-curtain side
impact air bag or without a sunroof not only meet but exceed government standards for head
impact protection. GM has recently made changes that add to that protection. GM is making similar
changes to vehicles built before this change was implemented.
Correction
To enhance head impact protection dealers are to install an energy-absorbing device on the driver
and passenger side headliner.
Vehicles Involved
Involved are certain 2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without
a head-curtain side impact air bag or without a sunroof and built within the VIN breakpoints shown
above.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using the GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles a listing with involved vehicles containing the complete vehicle
identification number customer name and address information has been prepared and will be
provided through GM DealerWorld Recall Information. Dealers will not have a report available if
they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > By Symptom: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 14080
Parts Information
Parts required to complete this recall are to be obtained from General Motors Service and Parts
Operations (GMSPO). Please refer to your "involved vehicles listing before ordering parts. Normal
orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation parts
should be ordered on a CSO = Customer Special Order.
Service Procedure
1. Remove the door weather strip.
Notice:
To avoid damaging the headliner and to ensure the headliner tab hole is cut in the correct location,
it is essential to carefully align the template cross hair (1) with the edge of the headliner and the
edge of the A-pillar trim. Use an X-Acto knife or equivalent utility knife to cut the tab hole in the
headliner.
Important:
There is a driver's side and a passenger's side template. The driver's side template is marked "L"
left side, and the passenger's side template is marked "R" right side.
2. Align the template cross hair (1) with the edge of the A-pillar trim and edge of the headliner.
3. Mark the outline for the tab hole using an ink pen.
4. Cut the tab hole using a utility knife.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > By Symptom: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 14081
5. Insert the tab of the headliner trim piece into the tab hole.
6. Insert the A-pillar edge of the headliner trim piece (1) under the A-pillar trim (2).
7. Place a piece of Scotch(R) tape (or equivalent transparent tape) along the edge of the headliner
where the U-channel will contact the headliner
8. Push the U-channel edge of the headliner trim piece over the top of the headliner edge.
9. Install the weather strip.
10. Examine the fit of the headliner trim piece to the headliner. Remove or reduce any gap between
the headliner and headliner trim piece by applying pressure to the headliner molding piece if
required.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > By Symptom: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 14082
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
Submit a Product Recall Claim with the information shown above.
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers regardless of
mileage, age of vehicle, or ownership, through May 31, 2009.
Customers who have recently purchased vehicles sold from your vehicle inventory and for which
there is no customer information indicated on the dealer listing are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory or is in your
dealership for service through May 31, 2009 you must take the steps necessary to be sure the
recall correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > By Symptom: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 14083
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > All Technical Service Bulletins for Head Restraint System: > 10-08-50-003A > Mar > 11 > Restraints Driver/Passenger Seat Head Rest Information
Head Restraint System: All Technical Service Bulletins Restraints - Driver/Passenger Seat Head
Rest Information
INFORMATION
Bulletin No.: 10-08-50-003A
Date: March 24, 2011
Subject: Information on Driver or Passenger Seat Head Restraint Concerns with Comfort, Custom
Upholstery or Other Comfort Enhancing Devices
Models:
2012 and Prior GM Passenger Cars and Trucks Equipped with Adjustable Head Restraints
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 10-08-50-003 (Section 08 - Body and Accessories).
Important ON A GM VEHICLE EQUIPPED WITH ADJUSTABLE HEAD RESTRAINTS, USE THE
HEAD RESTRAINT COVERS, FOAM AND OTHER SEAT-RELATED EQUIPMENT AS
RELEASED BY GM FOR THAT VEHICLE. DO NOT ALTER OR REPOSITION THE HEAD
RESTRAINT SYSTEM. ANY ALTERATIONS TO HEAD RESTRAINTS DEFEATS THE INTENDED
DESIGN OF THE SYSTEM. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE
OF SUCH IMPROPER DESIGN ALTERATIONS, INCLUDING ANY WARRANTY REPAIRS
INCURRED.
You may have a customer with a concern that the head restraint is uncomfortable or sits too far
forward. The front driver and passenger seats are equipped with head restraints that have been
designed to help minimize injuries while still providing comfort to the occupants. Each GM vehicle
has its own specifically designed head restraint.
The head restraints should only be used in the vehicle for which they were designed. The head
restraint will not operate to its design intent if the original foam is replaced (1) by non-GM foam or
head restraint, (2) by GM foam or head restraint designed for a different vehicle, (3) by GM foam or
head restraint that has been altered by a trim shop or (4) if any object, such as an aftermarket
comfort enhancing pad or device, is installed.
Never modify the design of the head restraint or remove the head restraint from the vehicle as this
may interfere with the operation of the seating and restraint systems and may prevent proper
positioning of the passenger within the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > All Technical Service Bulletins for Head Restraint System: > 07287A > May > 08 > Campaign - Enhanced Head
Impact Protection
Technical Service Bulletin # 07287A Date: 080528
Campaign - Enhanced Head Impact Protection
CUSTOMER SATISFACTION
Bulletin No.: 07287A
Date: May 28, 2008
Subject: 07287A - Increased Head Impact Protection
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Without Head-Curtain Side Impact Air Bags or Without Sunroof
Canadian Vehicles and Certain Export Vehicles
Supercede:
The Parts Information section in this bulletin has been revised to include the part usage for the gray
absorber kit. Please discard all copies of bulletin 07287, issued May 2008.
THIS PROGRAM IS IN EFFECT UNTIL MAY 31, 2009.
Condition
2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without a head-curtain side
impact air bag or without a sunroof not only meet but exceed government standards for head
impact protection. GM has recently made changes that add to that protection. GM is making similar
changes to vehicles built before this change was implemented.
Correction
To enhance head impact protection dealers are to install an energy-absorbing device on the driver
and passenger side headliner.
Vehicles Involved
Involved are certain 2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without
a head-curtain side impact air bag or without a sunroof and built within the VIN breakpoints shown
above.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using the GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles a listing with involved vehicles containing the complete vehicle
identification number customer name and address information has been prepared and will be
provided through GM DealerWorld Recall Information. Dealers will not have a report available if
they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > All Technical Service Bulletins for Head Restraint System: > 07287A > May > 08 > Campaign - Enhanced Head
Impact Protection > Page 14093
Parts Information
Parts required to complete this recall are to be obtained from General Motors Service and Parts
Operations (GMSPO). Please refer to your "involved vehicles listing before ordering parts. Normal
orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation parts
should be ordered on a CSO = Customer Special Order.
Service Procedure
1. Remove the door weather strip.
Notice:
To avoid damaging the headliner and to ensure the headliner tab hole is cut in the correct location,
it is essential to carefully align the template cross hair (1) with the edge of the headliner and the
edge of the A-pillar trim. Use an X-Acto knife or equivalent utility knife to cut the tab hole in the
headliner.
Important:
There is a driver's side and a passenger's side template. The driver's side template is marked "L"
left side, and the passenger's side template is marked "R" right side.
2. Align the template cross hair (1) with the edge of the A-pillar trim and edge of the headliner.
3. Mark the outline for the tab hole using an ink pen.
4. Cut the tab hole using a utility knife.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > All Technical Service Bulletins for Head Restraint System: > 07287A > May > 08 > Campaign - Enhanced Head
Impact Protection > Page 14094
5. Insert the tab of the headliner trim piece into the tab hole.
6. Insert the A-pillar edge of the headliner trim piece (1) under the A-pillar trim (2).
7. Place a piece of Scotch(R) tape (or equivalent transparent tape) along the edge of the headliner
where the U-channel will contact the headliner
8. Push the U-channel edge of the headliner trim piece over the top of the headliner edge.
9. Install the weather strip.
10. Examine the fit of the headliner trim piece to the headliner. Remove or reduce any gap between
the headliner and headliner trim piece by applying pressure to the headliner molding piece if
required.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > All Technical Service Bulletins for Head Restraint System: > 07287A > May > 08 > Campaign - Enhanced Head
Impact Protection > Page 14095
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
Submit a Product Recall Claim with the information shown above.
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers regardless of
mileage, age of vehicle, or ownership, through May 31, 2009.
Customers who have recently purchased vehicles sold from your vehicle inventory and for which
there is no customer information indicated on the dealer listing are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory or is in your
dealership for service through May 31, 2009 you must take the steps necessary to be sure the
recall correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > All Technical Service Bulletins for Head Restraint System: > 07287A > May > 08 > Campaign - Enhanced Head
Impact Protection > Page 14096
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Head Restraint System > System Information > Technical Service
Bulletins > All Other Service Bulletins for Head Restraint System: > 10-08-50-003A > Mar > 11 > Restraints Driver/Passenger Seat Head Rest Information
Head Restraint System: All Technical Service Bulletins Restraints - Driver/Passenger Seat Head
Rest Information
INFORMATION
Bulletin No.: 10-08-50-003A
Date: March 24, 2011
Subject: Information on Driver or Passenger Seat Head Restraint Concerns with Comfort, Custom
Upholstery or Other Comfort Enhancing Devices
Models:
2012 and Prior GM Passenger Cars and Trucks Equipped with Adjustable Head Restraints
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 10-08-50-003 (Section 08 - Body and Accessories).
Important ON A GM VEHICLE EQUIPPED WITH ADJUSTABLE HEAD RESTRAINTS, USE THE
HEAD RESTRAINT COVERS, FOAM AND OTHER SEAT-RELATED EQUIPMENT AS
RELEASED BY GM FOR THAT VEHICLE. DO NOT ALTER OR REPOSITION THE HEAD
RESTRAINT SYSTEM. ANY ALTERATIONS TO HEAD RESTRAINTS DEFEATS THE INTENDED
DESIGN OF THE SYSTEM. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE
OF SUCH IMPROPER DESIGN ALTERATIONS, INCLUDING ANY WARRANTY REPAIRS
INCURRED.
You may have a customer with a concern that the head restraint is uncomfortable or sits too far
forward. The front driver and passenger seats are equipped with head restraints that have been
designed to help minimize injuries while still providing comfort to the occupants. Each GM vehicle
has its own specifically designed head restraint.
The head restraints should only be used in the vehicle for which they were designed. The head
restraint will not operate to its design intent if the original foam is replaced (1) by non-GM foam or
head restraint, (2) by GM foam or head restraint designed for a different vehicle, (3) by GM foam or
head restraint that has been altered by a trim shop or (4) if any object, such as an aftermarket
comfort enhancing pad or device, is installed.
Never modify the design of the head restraint or remove the head restraint from the vehicle as this
may interfere with the operation of the seating and restraint systems and may prevent proper
positioning of the passenger within the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Knee Diverter > Component Information > Service and Repair
Knee Diverter: Service and Repair
Driver Knee Bolster Reinforcement Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 08-09-41-002F >
Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set
Air Bag Control Module: Customer Interest Restraints - Air Bag Lamp ON/Multiple DTC Set
TECHNICAL
Bulletin No.: 08-09-41-002F
Date: June 10, 2010
Subject: Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent
AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020,
B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set (Inspect and Replace Connector
Position Assurance (CPA) Retainer)
Models:
2005-2007 Buick Rainier 2006-2009 Buick Allure (Canada only), LaCrosse, Lucerne 2008-2010
Buick Enclave 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade Models 2008-2009 Cadillac
SRX, XLR 2008-2010 Cadillac CTS, STS 2005-2006 Chevrolet SSR 2005-2009 Chevrolet
TrailBlazer, TrailBlazer EXT 2005-2010 Chevrolet Cobalt 2006-2007 Chevrolet Monte Carlo
2006-2010 Chevrolet Corvette, HHR, Impala, Malibu Models (includes Malibu Classic) 2007-2009
Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2008-2010
Chevrolet Express 2009-2010 Chevrolet Traverse 2005-2009 GMC Envoy Models 2007-2010 GMC
Acadia, Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2008-2010 GMC Savana
2005-2006 Pontiac Pursuit 2005-2009 Pontiac G6 2006-2009 Pontiac Solstice 2007-2009 Pontiac
G5, Torrent 2008-2009 Pontiac G8 2005-2009 Saab 9-7X 2007-2009 Saturn AURA, OUTLOOK,
SKY 2008-2009 Saturn VUE 2008-2009 HUMMER H2 2007-2008 Daewoo G2X 2007-2009 Opel
GT
Supercede: This bulletin is being revised to update the Warranty Information and add Saab
Warranty Information. Please discard Corporate Bulletin Number 08-09-41-002E (Section 09 Restraints).
Condition
- Some customers may comment on an intermittent or current AIR BAG indicator or lamp being
illuminated on the instrument panel cluster (IPC). Important This bulletin only applies to the
following DTCs:
- Technicians may observe DTC(s) B0012 04, 0D, 0E; B0013 04, 0D, 0E; B0015 04, 0D, 0E;
B0016 04, 0D, 0E; B0019 04, 0D, 0E; B0020 04, 0D, 0E; B0022, B0023 04, 0D, 0E; B0033 04, 0D,
0E; B0040 04, 0D, 0E; B0042 or B0044 set as Current or in History in the sensing and diagnostic
module (SDM).
Cause
This condition may be caused by a loose, missing, or damaged connector position assurance
(CPA) retainer at a supplemental inflatable restraint (SIR) module electrical connector, or a
deployment loop wiring harness electrical connector.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 08-09-41-002F >
Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 14119
Caution
When performing service on or near the SIR components or the SIR wiring, the SIR system must
be disabled. Failure to observe the correct procedure could cause deployment of the SIR
components. Serious injury can occur. Failure to observe the correct procedure could also result in
unnecessary SIR system repairs.
1. Perform the Diagnostic System Check-Vehicle. 2. Identify the DTC that is set AND review the
DTC Descriptor in the corresponding diagnostic procedure. Refer to Diagnostic Trouble Code
(DTC)
List-Vehicle in SI.
3. Using the information from the DTC Descriptor, determine the location of the affected electrical
connector. Refer to SIR Identification Views and
the Master Electrical Component List in SI.
4. Turn OFF the ignition and disable the supplemental inflatable restraint (SIR) system. Refer to
SIR Disabling and Enabling in SI. 5. BEFORE removing, INSPECT the CPA retainer at the
electrical connector.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
‹› If the CPA retainer is loose, damaged, or will not seat in the connector, replace it with a new one.
Reinstall the CPA correctly by first pushing
the connector body in completely, and then pushing the CPA retainer in completely.
‹› If the CPA retainer is not loose or damaged and is properly seated, proceed to Step 6.
6. Remove the CPA retainer and disconnect the electrical connector. Inspect the terminals for the
following conditions:
- Corrosion
- Contamination
- Terminal tension
- Damage
Important The terminals in the SIR/SRS system are made with a special plating. This plating
provides the necessary contact integrity for the sensitive, low energy circuits. Use the J-38125
SIR/SRS Terminal Repair Kit for repairing SIR/SRS terminals and connectors. DO NOT substitute
any other terminals for those in the repair kit.
‹› If the terminals are damaged, corrosion is observed, or have poor tension, repair or replace as
necessary. Apply dielectric grease, GM P/N
12345579 (in Canada, use P/N 10953481) on the connector pins and terminals when
reassembling. Refer to SIR/SRS Wiring Repairs in SI.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
7. Connect the electrical connector, and install the CPA retainer. 8. Enable the supplemental
inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling in SI. 9. Clear the DTC with a
scan tool.
10. Verify that the DTC does not reset by performing the Diagnostic Repair Verification in SI.
‹› If any DTC resets, then refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Parts Information
Note
If the CPA retainer P/N 54590003 (Orange CPA) cannot be located in the J-38125 SIR/SRS
terminal repair kit, contact Kent Moore Tools and order P/N 54590003-PKG to obtain a package of
5.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 08-09-41-002F >
Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 14120
Warranty Information (excluding Saab U.S. Models)
Important Select the appropriate Labor Operation for the repair that is performed.
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 06-09-41-006D >
Dec > 07 > Restraints - Airbag Light On/DTC B0081 Set
Air Bag Control Module: Customer Interest Restraints - Airbag Light On/DTC B0081 Set
Bulletin No.: 06-09-41-006D
Date: December 13, 2007
TECHNICAL
Subject: Airbag Light On, DTC B0081 Set (Clear DTC Using Specific Procedure)
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
Supercede:
This bulletin is being revised to add the 2008 model year. Please discard Corporate Bulletin
Number 06-09-41-006C (Section 09 - Restraints).
Condition
Some customers may comment on the airbag light being illuminated. Upon investigation, the
technician may find DTC B0081 with symptom code 0F or 5A set.
Cause
This condition may be caused by a low state of charge or a dead battery in the vehicle.
Correction
The code can be cleared using the following procedure. Once the code is cleared, the airbag light
will go out. Key ON and engine OFF.
Use the scan tool to perform the Re-Zero Passenger Presence System within the Module Setup of
the Passenger Presence System (PPS).
After all procedures have been successfully completed, retrieve the DTCs from PPS and clear all
the DTCs.
Verify that the airbag light is no longer illuminated.
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Air Bag Control Module: > 06-09-41-006D >
Dec > 07 > Restraints - Airbag Light On/DTC B0081 Set > Page 14125
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: >
08-09-41-002F > Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set
Air Bag Control Module: All Technical Service Bulletins Restraints - Air Bag Lamp ON/Multiple DTC
Set
TECHNICAL
Bulletin No.: 08-09-41-002F
Date: June 10, 2010
Subject: Diagnostic Information for Supplemental Inflatable Restraint (SIR) System, Intermittent
AIR BAG Indicator/Lamp Illuminated with DTC(s) B0012, B0013, B0015, B0016, B0019, B0020,
B0022, B0023, B0026, B0033, B0040, B0042 or B0044 Set (Inspect and Replace Connector
Position Assurance (CPA) Retainer)
Models:
2005-2007 Buick Rainier 2006-2009 Buick Allure (Canada only), LaCrosse, Lucerne 2008-2010
Buick Enclave 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade Models 2008-2009 Cadillac
SRX, XLR 2008-2010 Cadillac CTS, STS 2005-2006 Chevrolet SSR 2005-2009 Chevrolet
TrailBlazer, TrailBlazer EXT 2005-2010 Chevrolet Cobalt 2006-2007 Chevrolet Monte Carlo
2006-2010 Chevrolet Corvette, HHR, Impala, Malibu Models (includes Malibu Classic) 2007-2009
Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2008-2010
Chevrolet Express 2009-2010 Chevrolet Traverse 2005-2009 GMC Envoy Models 2007-2010 GMC
Acadia, Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2008-2010 GMC Savana
2005-2006 Pontiac Pursuit 2005-2009 Pontiac G6 2006-2009 Pontiac Solstice 2007-2009 Pontiac
G5, Torrent 2008-2009 Pontiac G8 2005-2009 Saab 9-7X 2007-2009 Saturn AURA, OUTLOOK,
SKY 2008-2009 Saturn VUE 2008-2009 HUMMER H2 2007-2008 Daewoo G2X 2007-2009 Opel
GT
Supercede: This bulletin is being revised to update the Warranty Information and add Saab
Warranty Information. Please discard Corporate Bulletin Number 08-09-41-002E (Section 09 Restraints).
Condition
- Some customers may comment on an intermittent or current AIR BAG indicator or lamp being
illuminated on the instrument panel cluster (IPC). Important This bulletin only applies to the
following DTCs:
- Technicians may observe DTC(s) B0012 04, 0D, 0E; B0013 04, 0D, 0E; B0015 04, 0D, 0E;
B0016 04, 0D, 0E; B0019 04, 0D, 0E; B0020 04, 0D, 0E; B0022, B0023 04, 0D, 0E; B0033 04, 0D,
0E; B0040 04, 0D, 0E; B0042 or B0044 set as Current or in History in the sensing and diagnostic
module (SDM).
Cause
This condition may be caused by a loose, missing, or damaged connector position assurance
(CPA) retainer at a supplemental inflatable restraint (SIR) module electrical connector, or a
deployment loop wiring harness electrical connector.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: >
08-09-41-002F > Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 14131
Caution
When performing service on or near the SIR components or the SIR wiring, the SIR system must
be disabled. Failure to observe the correct procedure could cause deployment of the SIR
components. Serious injury can occur. Failure to observe the correct procedure could also result in
unnecessary SIR system repairs.
1. Perform the Diagnostic System Check-Vehicle. 2. Identify the DTC that is set AND review the
DTC Descriptor in the corresponding diagnostic procedure. Refer to Diagnostic Trouble Code
(DTC)
List-Vehicle in SI.
3. Using the information from the DTC Descriptor, determine the location of the affected electrical
connector. Refer to SIR Identification Views and
the Master Electrical Component List in SI.
4. Turn OFF the ignition and disable the supplemental inflatable restraint (SIR) system. Refer to
SIR Disabling and Enabling in SI. 5. BEFORE removing, INSPECT the CPA retainer at the
electrical connector.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
‹› If the CPA retainer is loose, damaged, or will not seat in the connector, replace it with a new one.
Reinstall the CPA correctly by first pushing
the connector body in completely, and then pushing the CPA retainer in completely.
‹› If the CPA retainer is not loose or damaged and is properly seated, proceed to Step 6.
6. Remove the CPA retainer and disconnect the electrical connector. Inspect the terminals for the
following conditions:
- Corrosion
- Contamination
- Terminal tension
- Damage
Important The terminals in the SIR/SRS system are made with a special plating. This plating
provides the necessary contact integrity for the sensitive, low energy circuits. Use the J-38125
SIR/SRS Terminal Repair Kit for repairing SIR/SRS terminals and connectors. DO NOT substitute
any other terminals for those in the repair kit.
‹› If the terminals are damaged, corrosion is observed, or have poor tension, repair or replace as
necessary. Apply dielectric grease, GM P/N
12345579 (in Canada, use P/N 10953481) on the connector pins and terminals when
reassembling. Refer to SIR/SRS Wiring Repairs in SI.
Note The connector and connector position assurance (CPA) may seat independent of each other.
Both the connector and CPA should seat with an audible and/or tactile click. The CPA isolates the
shorting-bars within the connector allowing the deployment circuit to operate properly.
7. Connect the electrical connector, and install the CPA retainer. 8. Enable the supplemental
inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling in SI. 9. Clear the DTC with a
scan tool.
10. Verify that the DTC does not reset by performing the Diagnostic Repair Verification in SI.
‹› If any DTC resets, then refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.
Parts Information
Note
If the CPA retainer P/N 54590003 (Orange CPA) cannot be located in the J-38125 SIR/SRS
terminal repair kit, contact Kent Moore Tools and order P/N 54590003-PKG to obtain a package of
5.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: >
08-09-41-002F > Jun > 10 > Restraints - Air Bag Lamp ON/Multiple DTC Set > Page 14132
Warranty Information (excluding Saab U.S. Models)
Important Select the appropriate Labor Operation for the repair that is performed.
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: >
06-09-41-006D > Dec > 07 > Restraints - Airbag Light On/DTC B0081 Set
Air Bag Control Module: All Technical Service Bulletins Restraints - Airbag Light On/DTC B0081
Set
Bulletin No.: 06-09-41-006D
Date: December 13, 2007
TECHNICAL
Subject: Airbag Light On, DTC B0081 Set (Clear DTC Using Specific Procedure)
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
Supercede:
This bulletin is being revised to add the 2008 model year. Please discard Corporate Bulletin
Number 06-09-41-006C (Section 09 - Restraints).
Condition
Some customers may comment on the airbag light being illuminated. Upon investigation, the
technician may find DTC B0081 with symptom code 0F or 5A set.
Cause
This condition may be caused by a low state of charge or a dead battery in the vehicle.
Correction
The code can be cleared using the following procedure. Once the code is cleared, the airbag light
will go out. Key ON and engine OFF.
Use the scan tool to perform the Re-Zero Passenger Presence System within the Module Setup of
the Passenger Presence System (PPS).
After all procedures have been successfully completed, retrieve the DTCs from PPS and clear all
the DTCs.
Verify that the airbag light is no longer illuminated.
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Air Bag Control Module: >
06-09-41-006D > Dec > 07 > Restraints - Airbag Light On/DTC B0081 Set > Page 14137
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Page 14138
Air Bag Control Module: Locations
SIR Component Views
Center of the Floor
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Page 14139
Air Bag Control Module: Diagrams
SIR Connector End Views
Inflatable Restraint Sensing and Diagnostic Module (SDM) (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Page 14140
Inflatable Restraint Sensing and Diagnostic Module (SDM) (-ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Page 14141
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Air Bag Control Module >
Component Information > Technical Service Bulletins > Page 14142
Air Bag Control Module: Service and Repair
Inflatable Restraint Sensing and Diagnostic Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Error > Page 14151
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Error > Page 14152
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Error > Page 14153
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Error > Page 14154
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Update > Page 14159
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Update > Page 14160
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 >
Recall - Seat Occupant Sensor Calibration Update > Page 14161
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Recalls: > NHTSA07V344000 >
Aug > 07 > Recall 07V344000: Seat Occupant System Reprogramming
Seat Occupant Classification Module - Air Bag: Recalls Recall 07V344000: Seat Occupant System
Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > Customer Interest: > 08-09-41-004
> Mar > 08 > Restraints - AIr Bag Lamp ON/DTC B1000 Set
Seat Occupant Classification Module - Air Bag: Customer Interest Restraints - AIr Bag Lamp
ON/DTC B1000 Set
TECHNICAL
Bulletin No.: 08-09-41-004
Date: March 12, 2008
Subject: Airbag Light On, DTC B1000 Set (Reprogram Passenger Presence System (PPS)
Module)
Models: 2008 Buick Enclave 2005-2008 Cadillac SRX 2005-2008 Chevrolet Equinox 2007-2008
GMC Acadia 2006-2008 Pontiac Torrent 2007-2008 Saturn OUTLOOK 2007-2008 Suzuki XL-7
Condition
Some customers may comment on the airbag light being illuminated.
Upon investigation, the technician may find DTC B1000 with symptom code 37 set as current or in
history.
Correction
Important:
You must contact Techline to obtain a VCI number.
New software for the Passenger Presence System (PPS) has been released to disable this
diagnostic check to prevent false setting of DTC B1000. Reprogram the PPS module with updated
calibration files using the TIS2WEB Service Programming System (SPS) application. As always,
make sure your Tech 2(R) is updated with the latest software version.
Perform a PPS rezero/preload procedure upon a successful module reprogramming event.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 08-09-41-004 > Mar > 08 > Restraints - AIr Bag Lamp ON/DTC B1000 Set
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Restraints - AIr Bag
Lamp ON/DTC B1000 Set
TECHNICAL
Bulletin No.: 08-09-41-004
Date: March 12, 2008
Subject: Airbag Light On, DTC B1000 Set (Reprogram Passenger Presence System (PPS)
Module)
Models: 2008 Buick Enclave 2005-2008 Cadillac SRX 2005-2008 Chevrolet Equinox 2007-2008
GMC Acadia 2006-2008 Pontiac Torrent 2007-2008 Saturn OUTLOOK 2007-2008 Suzuki XL-7
Condition
Some customers may comment on the airbag light being illuminated.
Upon investigation, the technician may find DTC B1000 with symptom code 37 set as current or in
history.
Correction
Important:
You must contact Techline to obtain a VCI number.
New software for the Passenger Presence System (PPS) has been released to disable this
diagnostic check to prevent false setting of DTC B1000. Reprogram the PPS module with updated
calibration files using the TIS2WEB Service Programming System (SPS) application. As always,
make sure your Tech 2(R) is updated with the latest software version.
Perform a PPS rezero/preload procedure upon a successful module reprogramming event.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error >
Page 14180
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error >
Page 14181
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error >
Page 14182
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error >
Page 14183
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update >
Page 14188
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update >
Page 14189
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update >
Page 14190
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Seat Occupant Classification Module - Air Bag: > NHTSA07V344000 > Aug > 07 > Recall 07V344000: Seat Occupant
System Reprogramming
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Recall 07V344000:
Seat Occupant System Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 08-09-41-004 > Mar > 08 > Restraints - AIr Bag Lamp ON/DTC B1000 Set
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Restraints - AIr Bag
Lamp ON/DTC B1000 Set
TECHNICAL
Bulletin No.: 08-09-41-004
Date: March 12, 2008
Subject: Airbag Light On, DTC B1000 Set (Reprogram Passenger Presence System (PPS)
Module)
Models: 2008 Buick Enclave 2005-2008 Cadillac SRX 2005-2008 Chevrolet Equinox 2007-2008
GMC Acadia 2006-2008 Pontiac Torrent 2007-2008 Saturn OUTLOOK 2007-2008 Suzuki XL-7
Condition
Some customers may comment on the airbag light being illuminated.
Upon investigation, the technician may find DTC B1000 with symptom code 37 set as current or in
history.
Correction
Important:
You must contact Techline to obtain a VCI number.
New software for the Passenger Presence System (PPS) has been released to disable this
diagnostic check to prevent false setting of DTC B1000. Reprogram the PPS module with updated
calibration files using the TIS2WEB Service Programming System (SPS) application. As always,
make sure your Tech 2(R) is updated with the latest software version.
Perform a PPS rezero/preload procedure upon a successful module reprogramming event.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page
14205
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page
14206
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page
14207
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page
14208
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page
14213
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page
14214
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page
14215
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Relays and Modules - Restraint Systems > Seat Occupant
Classification Module - Air Bag > Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat
Occupant Classification Module - Air Bag: > NHTSA07V344000 > Aug > 07 > Recall 07V344000: Seat Occupant System
Reprogramming
Seat Occupant Classification Module - Air Bag: All Technical Service Bulletins Recall 07V344000:
Seat Occupant System Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Air Bag(s) Arming and Disarming > System
Information > Service and Repair
Air Bag(s) Arming and Disarming: Service and Repair
SIR Disabling and Enabling
SIR component location affects how a vehicle should be serviced. There are parts of the SIR
system installed in various locations around a vehicle. To find the location of the SIR components
refer to SIR Identification Views.
There are several reasons for disabling the SIR system, such as repairs to the SIR system or
servicing a component near or attached to an SIR component. There are several ways to disable
the SIR system depending on what type of service is being performed. The following information
covers the proper procedures for disabling/enabling the SIR system.
SIR Service Precautions
Caution: When performing service on or near the SIR components or the SIR wiring, the SIR
system must be disabled. Failure to observe the correct procedure could cause deployment of the
SIR components. Serious injury can occur. Failure to observe the correct procedure could also
result in unnecessary SIR system repairs.
The inflatable restraint sensing and diagnostic module (SDM) maintains a reserved energy supply.
The reserved energy supply provides deployment power for the air bags if the SDM loses battery
power during a collision. Deployment power is available for as much as 1 minute after
disconnecting the vehicle power. Waiting 1 minute before working on the system after disabling the
SIR system prevents deployment of the air bags from the reserved energy supply.
General Service Instructions
The following are general service instructions which must be followed in order to properly repair the
vehicle and return it to its original integrity:
* Do not expose inflator modules to temperatures above 65°C (150°F).
* Verify the correct replacement part number. Do not substitute a component from a different
vehicle.
* Use only original GM replacement parts available from your authorized GM dealer. Do not use
salvaged parts for repairs to the SIR system.
Discard any of the following components if it has been dropped from a height of 91 cm (3 feet) or
greater:
* Inflatable restraint sensing and diagnostic module (SDM)
* Any Inflatable restraint air bag module
* Inflatable restraint steering wheel module coil
* Any Inflatable restraint sensor
* Inflatable restraint seat belt pretensioners
* Inflatable restraint Passenger Presence System (PPS) module or sensor
Disabling Procedure - Air Bag Fuse
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position.
Important: The SDM may have more than one fused power input. To ensure there is no unwanted
SIR deployment, personal injury, or unnecessary SIR system repairs, remove all fuses supplying
power to the SDM. With all SDM fuses removed and the ignition switch in the ON position, the AIR
BAG warning indicator illuminates. This is normal operation, and does not indicate a SIR system
malfunction.
3. Locate and remove the fuse(s) supplying power to the SDM. 4. Wait 1 minute before working on
the system.
Enabling Procedure - Air Bag Fuse
1. Place the ignition in the OFF position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Air Bag(s) Arming and Disarming > System
Information > Service and Repair > Page 14224
2. Install the fuse(s) supplying power to the SDM. 3. Turn the ignition switch to the ON position.
The AIR BAG indicator will flash then turn OFF. 4. Perform the Diagnostic System Check - Vehicle
if the AIR BAG warning indicator does not operate as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Disabling Procedure - Negative Battery Cable
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position. 3. Disconnect the negative battery cable from the battery. 4. Wait 1
minute before working on system.
Enabling Procedure - Negative Battery Cable
1. Place the ignition in the OFF position. 2. Connect the negative battery cable to the battery. 3.
Turn the ignition switch to the ON position. The AIR BAG indicator will flash then turn OFF. 4.
Perform the Diagnostic System Check - Vehicle if the AIR BAG warning indicator does not operate
as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Child Restraint > Child Seat Tether Attachment >
Component Information > Service and Repair
Child Seat Tether Attachment: Service and Repair
Child Restraint Tether Anchor Bezel Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt > Component Information > Technical
Service Bulletins > Restraint System - Normal Safety Belt Locking Conditions
Seat Belt: Technical Service Bulletins Restraint System - Normal Safety Belt Locking Conditions
INFORMATION
Bulletin No.: 05-09-40-002E
Date: October 21, 2010
Subject: Safety Belt Locking Conditions (Normal Operating Characteristic)
Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2010 HUMMER
H2, H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 05-09-40-002D (Section 09 - Restraints).
The purpose of this bulletin is to explain when the safety belts are supposed to lock. There are
several different locking situations for both front and rear safety belts.
Overspool Lock
There is an unintentional locking condition that ALL safety belts from ALL manufacturers may
experience called "overspool lock". If the webbing snaps back to the stowed position rapidly
enough, the retractor will lock with the belt fully stowed. This is more likely to occur when
customers "help" the belt to retract. Without the weight of the latch plate and friction to slow the
retractive speed of the webbing, the higher than normal webbing retraction speed that occurs
engages the locking mechanism when a sudden stop occurs at the end of web travel. Since the
webbing is now fully loaded on the spool, the retractor cannot rewind itself further to release the
locking mechanism. When this happens, the occupant cannot extract the belt to wear it. DO NOT
replace the retractor for this condition until first attempting to disengage the locking mechanism by
following the recommendation listed below.
Recommendation
Pull hard on the locked webbing and then release. The hard pull extracts a small amount of
webbing from the retractor which, in turn, permits a small amount of retraction to occur when
released. This is all that is needed to disengage the locking mechanism. The safety belt will now
function properly.
Vehicle Sensing
This type of locking occurs in response to the vehicle under the following conditions:
- The vehicle changes speed or direction abruptly (the vehicle goes into rapid acceleration OR
rapid deceleration or there is aggressive cornering).
- It can also occur in a static condition when a vehicle is parked on a large slant (fore-aft or
side-to-side), such as streets in San Francisco, California.
- It may also occur over rough road conditions where the retractor mechanism is bounced into a
locked condition.
In all of these conditions, as long as tension is maintained on the webbing, the belt will stay locked.
When the tension is released, the belt retracts slightly, the lock bar disengages and the safety belt
should return to normal function. Please inform customers that may comment that "the belt locks
intermittently" that this is the design intent and the belt is functioning properly.
Web Sensing
This type of locking occurs in response to the extraction of webbing. When the webbing reels out at
an accelerated rate, it goes into lock mode and stays there until tension is again released. To
observe this condition, extract the webbing quickly. Customers may refer to this condition as
"intermittent lock-up" and encounter it when trying to put the belt on too quickly.
Automatic Locking (ALR)
When the webbing is pulled all the way out, it automatically converts the retractor into a cinch-down
mode (i.e. ALR). This is typically used to tightly secure a child seat to the vehicle. Some customers
may experience inadvertent activation of ALR mode if they happen to pull the belt all the way out to
the end of travel while they are putting the belt on. The ALR mode of operation is automatically
cancelled when the belt is unfastened and stowed (the belt returns to normal sensitive function).
Corvette only - This locking mechanism is also provided at the driver's position of the Corvette only,
as a unique feature. Corvette customers may find this feature appealing when they plan to operate
the vehicle in a "spirited" manner (such as driving in mountainous terrain). With the ALR active, the
operator is snugly cinched into the seat and kept firmly in place during high G-force driving
maneuvers.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt > Component Information > Technical
Service Bulletins > Restraint System - Normal Safety Belt Locking Conditions > Page 14233
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt > Component Information > Service and
Repair > Front Seat Belt Replacement (Quick Connect)
Seat Belt: Service and Repair Front Seat Belt Replacement (Quick Connect)
Front Seat Belt Replacement (Quick Connect)
Removal Procedure
1. Using a small flat-bladed tool, depress the button on the seat buckle quick disconnect feature
while pulling up on the shoulder belt to disengage the
shoulder belt from the front seat assembly.
2. Remove the lower garnish molding from the center pillar.
3. Remove the retractor fastener and remove the retractor. 4. Remove the shoulder belt webbing
retainer by pulling on the retainer while using a flat-bladed tool to disengage the attaching clips. 5.
Remove the shoulder belt from the vehicle.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt > Component Information > Service and
Repair > Front Seat Belt Replacement (Quick Connect) > Page 14236
Important: Apply Permatex(R) 24200 on all restraint fasteners prior to installation.
1. Position the shoulder belt retractor into the center pillar positioning unit with the locking tab in the
body structure notch.
Notice: Refer to Fastener Notice.
2. Install the retractor fastener.
Tighten the fastener to 45 N.m (33 lb ft).
3. Snap the shoulder belt webbing retainer into the center pillar. 4. Install the lower garnish molding
into the center pillar.
5. Install the seat belt to the seat assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt > Component Information > Service and
Repair > Front Seat Belt Replacement (Quick Connect) > Page 14237
Seat Belt: Service and Repair Rear Seat Belt Replacement
Rear Seat Belt Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt > Component Information > Service and
Repair > Front Seat Belt Replacement (Quick Connect) > Page 14238
Seat Belt: Service and Repair Seat Belt Replacement - Center Rear
Seat Belt Replacement - Center Rear
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt > Component Information > Service and
Repair > Front Seat Belt Replacement (Quick Connect) > Page 14239
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Buckle > Component Information >
Technical Service Bulletins > Customer Interest: > 09-09-40-001A > Feb > 11 > Restraints - Seat Belt Warning Lamp
On/Buckling Issues
Seat Belt Buckle: Customer Interest Restraints - Seat Belt Warning Lamp On/Buckling Issues
INFORMATION
Bulletin No.: 09-09-40-001A
Date: February 02, 2011
Subject: Seat Belt Buckle Latching Issues and/or Seat Belt Warning Lights Illuminated
Models:
2011 and Prior GM Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7 X
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 09-09-40-001 (Section 09 - Restraints).
This bulletin is being published to advise dealers about seat belt buckles not operating and/or seat
belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle
release button sticking.
Analysis of warranty data has determined that this condition may be caused by sticky beverages
being spilled onto or into the seat belt buckle assembly. Foreign debris from food, candy wrappers,
paper and coins can also contribute to this condition.
Important If foreign material (debris) or sticky liquids are the cause of the concern, show the
customer the condition of the component (buckle assembly) and explain how it is affecting the
function of the restraint system. Strongly recommend that the component be replaced. Point out the
fact that this is not a manufacturing defect and is not covered by the new vehicle warranty. If the
customer declines to have parts replaced, the service department management must make a
notation on the service record that the lack of functionality of seating position with an inoperative
buckle was fully explained to the customer. The service department management must advise the
customer that having a non-functioning buckle in a seating position voids ability to use that seating
position (no one should ride in the seat). Also make the customer aware that it may be against the
law to ride in a vehicle without wearing a restraint system.
Important Never insert anything other than the seat belt latch plate into the buckle assembly. Do
not attempt to dig anything out of a buckle with a tool. Never try to wash out a buckle to remove a
spilled liquid as this may damage the buckle.
Use the following steps to determine the cause of the concern.
1. Inspect the buckle assembly with a light shining on the latch plate insertion area. Look for any
debris or foreign objects in the buckle. 2. If any debris or foreign objects are observed, try to
vacuum out the item. After the foreign material is removed, latch and unlatch the seat belt. If
the system functions properly, do not replace the seat belt buckle assembly.
3. If the condition has not been corrected, inspect the buckle assembly for any sticky residue. If
sticky residue is found, inform the customer that a
substance was spilled on the seat belt buckle assembly causing the malfunction. The buckle
assembly will need to be replaced at the customer's expense.
4. Refer to SI for seat belt component replacement.
Important If foreign material (debris) or sticky liquids are the cause of the concern, show the
customer the condition of the component (buckle assembly) and explain how it is affecting the
function of the restraint system. Strongly recommend that the component be replaced at the
customer's expense. Point out the fact that this is not a manufacturing defect and is not covered by
the new vehicle warranty. If the customer declines to have parts replaced, the service department
management must make a notation on the service record that the lack of functionality of seating
position with an inoperative buckle was fully explained to the customer. The service department
management must advise customer that having a non-functioning buckle in a seating position voids
ability to use that seating position (no one should ride in the seat). Also make the customer aware
that it may be against the law to ride in a vehicle without wearing a restraint system.
5. If further restraint diagnosis is required, refer to Seat Belt System Operational and Functional
Checks in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Buckle > Component Information >
Technical Service Bulletins > Customer Interest: > 09-09-40-001A > Feb > 11 > Restraints - Seat Belt Warning Lamp
On/Buckling Issues > Page 14248
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Buckle > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Belt Buckle: > 09-09-40-001A > Feb > 11 > Restraints
- Seat Belt Warning Lamp On/Buckling Issues
Seat Belt Buckle: All Technical Service Bulletins Restraints - Seat Belt Warning Lamp On/Buckling
Issues
INFORMATION
Bulletin No.: 09-09-40-001A
Date: February 02, 2011
Subject: Seat Belt Buckle Latching Issues and/or Seat Belt Warning Lights Illuminated
Models:
2011 and Prior GM Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7 X
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 09-09-40-001 (Section 09 - Restraints).
This bulletin is being published to advise dealers about seat belt buckles not operating and/or seat
belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle
release button sticking.
Analysis of warranty data has determined that this condition may be caused by sticky beverages
being spilled onto or into the seat belt buckle assembly. Foreign debris from food, candy wrappers,
paper and coins can also contribute to this condition.
Important If foreign material (debris) or sticky liquids are the cause of the concern, show the
customer the condition of the component (buckle assembly) and explain how it is affecting the
function of the restraint system. Strongly recommend that the component be replaced. Point out the
fact that this is not a manufacturing defect and is not covered by the new vehicle warranty. If the
customer declines to have parts replaced, the service department management must make a
notation on the service record that the lack of functionality of seating position with an inoperative
buckle was fully explained to the customer. The service department management must advise the
customer that having a non-functioning buckle in a seating position voids ability to use that seating
position (no one should ride in the seat). Also make the customer aware that it may be against the
law to ride in a vehicle without wearing a restraint system.
Important Never insert anything other than the seat belt latch plate into the buckle assembly. Do
not attempt to dig anything out of a buckle with a tool. Never try to wash out a buckle to remove a
spilled liquid as this may damage the buckle.
Use the following steps to determine the cause of the concern.
1. Inspect the buckle assembly with a light shining on the latch plate insertion area. Look for any
debris or foreign objects in the buckle. 2. If any debris or foreign objects are observed, try to
vacuum out the item. After the foreign material is removed, latch and unlatch the seat belt. If
the system functions properly, do not replace the seat belt buckle assembly.
3. If the condition has not been corrected, inspect the buckle assembly for any sticky residue. If
sticky residue is found, inform the customer that a
substance was spilled on the seat belt buckle assembly causing the malfunction. The buckle
assembly will need to be replaced at the customer's expense.
4. Refer to SI for seat belt component replacement.
Important If foreign material (debris) or sticky liquids are the cause of the concern, show the
customer the condition of the component (buckle assembly) and explain how it is affecting the
function of the restraint system. Strongly recommend that the component be replaced at the
customer's expense. Point out the fact that this is not a manufacturing defect and is not covered by
the new vehicle warranty. If the customer declines to have parts replaced, the service department
management must make a notation on the service record that the lack of functionality of seating
position with an inoperative buckle was fully explained to the customer. The service department
management must advise customer that having a non-functioning buckle in a seating position voids
ability to use that seating position (no one should ride in the seat). Also make the customer aware
that it may be against the law to ride in a vehicle without wearing a restraint system.
5. If further restraint diagnosis is required, refer to Seat Belt System Operational and Functional
Checks in SI.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Buckle > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Belt Buckle: > 09-09-40-001A > Feb > 11 > Restraints
- Seat Belt Warning Lamp On/Buckling Issues > Page 14254
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Buckle > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Belt Buckle: > 07-09-40-002A > Jun > 09 > Restraints Seat Belt Latch Stop Button Availability
Seat Belt Buckle: All Technical Service Bulletins Restraints - Seat Belt Latch Stop Button
Availability
INFORMATION
Bulletin No.: 07-09-40-002A
Date: June 04, 2009
Subject: Seat Belt Latch Stop Button Available for Service
Models:
2005-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2010 HUMMER H2
2006-2010 HUMMER H3 2009-2010 HUMMER H3T
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
update the models and model years. Please discard Corporate Bulletin Number 07-09-40-002
(Section 09 - Restraints).
..............................................................................................................................................................
..................................................................................
All seat belt retractor assemblies contain a stop button. If a stop button becomes damaged, the
button can be replaced by ordering a replacement button through the GM Parts Catalog. The seat
belt retractor assembly does not need replacement.
Refer to the Seat Belt Latch Stop Installation procedure in SI for the complete installation
procedure.
Parts Information
For part numbers, usage and availability of stop buttons, see Stop Kit in Group 14.875 (cars) or
Group 16.714 (trucks) of the appropriate Parts Catalog. Saturn retailers should refer to the
appropriate model year Parts & Illustration Catalog for the vehicle.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Buckle > Component Information >
Technical Service Bulletins > All Other Service Bulletins for Seat Belt Buckle: > 07-09-40-002A > Jun > 09 > Restraints Seat Belt Latch Stop Button Availability
Seat Belt Buckle: All Technical Service Bulletins Restraints - Seat Belt Latch Stop Button
Availability
INFORMATION
Bulletin No.: 07-09-40-002A
Date: June 04, 2009
Subject: Seat Belt Latch Stop Button Available for Service
Models:
2005-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2010 HUMMER H2
2006-2010 HUMMER H3 2009-2010 HUMMER H3T
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
update the models and model years. Please discard Corporate Bulletin Number 07-09-40-002
(Section 09 - Restraints).
..............................................................................................................................................................
..................................................................................
All seat belt retractor assemblies contain a stop button. If a stop button becomes damaged, the
button can be replaced by ordering a replacement button through the GM Parts Catalog. The seat
belt retractor assembly does not need replacement.
Refer to the Seat Belt Latch Stop Installation procedure in SI for the complete installation
procedure.
Parts Information
For part numbers, usage and availability of stop buttons, see Stop Kit in Group 14.875 (cars) or
Group 16.714 (trucks) of the appropriate Parts Catalog. Saturn retailers should refer to the
appropriate model year Parts & Illustration Catalog for the vehicle.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Buckle > Component Information >
Service and Repair > Front Seat Belt Buckle Replacement
Seat Belt Buckle: Service and Repair Front Seat Belt Buckle Replacement
Front Seat Belt Buckle Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Buckle > Component Information >
Service and Repair > Front Seat Belt Buckle Replacement > Page 14266
Seat Belt Buckle: Service and Repair Seat Belt Buckle Replacement - Center Rear
Seat Belt Buckle Replacement - Center Rear
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Buckle Switch > Component
Information > Locations
Seat Belt Buckle Switch: Locations
Seat Belt Component Views
Driver Seat
1 - Seat Belt Switch - Driver 2 - Seat Horizontal Motor - Driver (AG1) 3 - Heated Seat Element Driver Cushion (KA1) 4 - Heated Seat Element - Driver Back (KA1) 5 - Seat Adjuster Switch Driver (AG1) 6 - Seat Rear Vertical Motor - Driver (AG1) 7 - Seat Front Vertical Motor - Driver
(AG1)
Passenger Seat (Manual)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Buckle Switch > Component
Information > Locations > Page 14270
1 - Heated Seat Element - Front Passenger Cushion (KA1) 2 - Seat Frame 3 - Heated Seat
Element - Front Passenger Back (KA1) 4 - Seat Belt Switch - Passenger 5 - Inflatable Restraint
Passenger Presence (PPS) Module 6 - Heated Seat Control Module - Passenger (KA1) 7 Inflatable Restraint Passenger Presence (PPS) Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Buckle Switch > Component
Information > Locations > Page 14271
Seat Belt Buckle Switch: Diagrams
Seat Belt Connector End Views
Seat Belt Switch - Left
A/T Shift Lock Control Solenoid
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Extension > Component Information >
Technical Service Bulletins > Restraints - Extender Availability For Seat Belt
Seat Belt Extension: Technical Service Bulletins Restraints - Extender Availability For Seat Belt
INFORMATION
Bulletin No.: 99-09-40-005F
Date: June 23, 2010
Subject: Seat Belt Extender Availability
Models: 2011 and Prior GM Passenger Cars and Trucks (Including Saturn) 2009 and Prior
HUMMER H2 2010 and Prior HUMMER H3 2005-2009 Saab 9-7X
Supercede:
This bulletin is being revised to add the 2009‐2011 model years and update the Warranty
Information. Please discard Corporate Bulletin Number 99-09-40-005E (Section 09 Restraints).
Important:
DO NOT use belt extenders when securing a child restraint.
The seat and shoulder belt restraint systems used in all General Motors vehicles have sufficient
belt length to accommodate most drivers and passengers. Consequently, requests for belt
extensions (extenders) should be minimal.
Seat belt extenders are available ONLY IN BLACK for most GM passenger cars and trucks
produced in recent years. They are available in two different lengths, 23 cm (9 in) and 38 cm (15
in). They are designed to be coupled with the existing belts in each vehicle. When in use, the
extender makes the belt arrangement a "custom fit" and use by anyone else or in another vehicle
will lessen or nullify the protection offered by the vehicle's restraint system. For this reason, it is
extremely important that the correct length extender be used for the vehicle and occupant intended.
Important:
Do not use an extender just to make it easier to buckle the safety belt. Use an extender only when
you cannot buckle the safety belt without using an extender.
Parts Information
For part numbers, usage and availability of extenders, see Extension Kit in Group 14.875 (cars) or
Group 16.714 (trucks) of the appropriate parts catalog. Saturn retailers should refer to the
appropriate model year Parts & Illustration catalog for the vehicle. U.S. Saab dealers should contact
the Parts Help line. Canadian Saab dealers should fax requests to Partech Canada.
Warranty Information
^ Seat belt extenders are a NO CHARGE item to all GM customers who request them for their
specific vehicles.
^ Dealers should not be charging part costs since these extenders are supplied by GM to the
dealers.
^ Dealers should not be charging labor costs since the extender can be customer installed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Guide Track > Component Information
> Service and Repair
Seat Belt Guide Track: Service and Repair
Guide Replacement - Rear Seat Shoulder Belt
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Height Adjuster > Component
Information > Service and Repair
Seat Belt Height Adjuster: Service and Repair
Seat Belt Height Adjuster Replacement - Front
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Retractor > Component Information >
Technical Service Bulletins > Restraint System - Normal Safety Belt Locking Conditions
Seat Belt Retractor: Technical Service Bulletins Restraint System - Normal Safety Belt Locking
Conditions
INFORMATION
Bulletin No.: 05-09-40-002E
Date: October 21, 2010
Subject: Safety Belt Locking Conditions (Normal Operating Characteristic)
Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2010 HUMMER
H2, H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 05-09-40-002D (Section 09 - Restraints).
The purpose of this bulletin is to explain when the safety belts are supposed to lock. There are
several different locking situations for both front and rear safety belts.
Overspool Lock
There is an unintentional locking condition that ALL safety belts from ALL manufacturers may
experience called "overspool lock". If the webbing snaps back to the stowed position rapidly
enough, the retractor will lock with the belt fully stowed. This is more likely to occur when
customers "help" the belt to retract. Without the weight of the latch plate and friction to slow the
retractive speed of the webbing, the higher than normal webbing retraction speed that occurs
engages the locking mechanism when a sudden stop occurs at the end of web travel. Since the
webbing is now fully loaded on the spool, the retractor cannot rewind itself further to release the
locking mechanism. When this happens, the occupant cannot extract the belt to wear it. DO NOT
replace the retractor for this condition until first attempting to disengage the locking mechanism by
following the recommendation listed below.
Recommendation
Pull hard on the locked webbing and then release. The hard pull extracts a small amount of
webbing from the retractor which, in turn, permits a small amount of retraction to occur when
released. This is all that is needed to disengage the locking mechanism. The safety belt will now
function properly.
Vehicle Sensing
This type of locking occurs in response to the vehicle under the following conditions:
- The vehicle changes speed or direction abruptly (the vehicle goes into rapid acceleration OR
rapid deceleration or there is aggressive cornering).
- It can also occur in a static condition when a vehicle is parked on a large slant (fore-aft or
side-to-side), such as streets in San Francisco, California.
- It may also occur over rough road conditions where the retractor mechanism is bounced into a
locked condition.
In all of these conditions, as long as tension is maintained on the webbing, the belt will stay locked.
When the tension is released, the belt retracts slightly, the lock bar disengages and the safety belt
should return to normal function. Please inform customers that may comment that "the belt locks
intermittently" that this is the design intent and the belt is functioning properly.
Web Sensing
This type of locking occurs in response to the extraction of webbing. When the webbing reels out at
an accelerated rate, it goes into lock mode and stays there until tension is again released. To
observe this condition, extract the webbing quickly. Customers may refer to this condition as
"intermittent lock-up" and encounter it when trying to put the belt on too quickly.
Automatic Locking (ALR)
When the webbing is pulled all the way out, it automatically converts the retractor into a cinch-down
mode (i.e. ALR). This is typically used to tightly secure a child seat to the vehicle. Some customers
may experience inadvertent activation of ALR mode if they happen to pull the belt all the way out to
the end of travel while they are putting the belt on. The ALR mode of operation is automatically
cancelled when the belt is unfastened and stowed (the belt returns to normal sensitive function).
Corvette only - This locking mechanism is also provided at the driver's position of the Corvette only,
as a unique feature. Corvette customers may find this feature appealing when they plan to operate
the vehicle in a "spirited" manner (such as driving in mountainous terrain). With the ALR active, the
operator is snugly cinched into the seat and kept firmly in place during high G-force driving
maneuvers.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Retractor > Component Information >
Technical Service Bulletins > Restraint System - Normal Safety Belt Locking Conditions > Page 14286
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Retractor > Component Information >
Technical Service Bulletins > Restraint System - Normal Safety Belt Locking Conditions > Page 14287
Seat Belt Retractor: Technical Service Bulletins Restraints - Seat Belt Latch Stop Button Availability
INFORMATION
Bulletin No.: 07-09-40-002A
Date: June 04, 2009
Subject: Seat Belt Latch Stop Button Available for Service
Models:
2005-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2005-2010 HUMMER H2
2006-2010 HUMMER H3 2009-2010 HUMMER H3T
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
update the models and model years. Please discard Corporate Bulletin Number 07-09-40-002
(Section 09 - Restraints).
..............................................................................................................................................................
..................................................................................
All seat belt retractor assemblies contain a stop button. If a stop button becomes damaged, the
button can be replaced by ordering a replacement button through the GM Parts Catalog. The seat
belt retractor assembly does not need replacement.
Refer to the Seat Belt Latch Stop Installation procedure in SI for the complete installation
procedure.
Parts Information
For part numbers, usage and availability of stop buttons, see Stop Kit in Group 14.875 (cars) or
Group 16.714 (trucks) of the appropriate Parts Catalog. Saturn retailers should refer to the
appropriate model year Parts & Illustration Catalog for the vehicle.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Retractor > Component Information >
Technical Service Bulletins > Page 14288
Seat Belt Retractor: Service and Repair
Seat Belt Retractor Anchor Plate Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Tensioner > Component Information >
Diagrams
Seat Belt Tensioner: Diagrams
SIR Connector End Views
Seat Belt Pretensioner - Left
Seat Belt Pretensioner - Right
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Tensioner > Component Information >
Diagrams > Page 14292
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Tensioner > Component Information >
Service and Repair > Procedures
Seat Belt Tensioner: Procedures
Pretensioner Handling and Scrapping
Caution: When carrying an undeployed inflatable restraint seat belt retractor pretensioner:
*
Do not carry the seat belt pretensioner by the seat belt webbing or pigtail connector, if equipped.
* Carry the seat belt pretensioner by the housing, keeping hands and fingers away from the seat
belt webbing.
* Make sure the opening, from which the seat belt webbing extends, faces downward and the seat
belt webbing hangs freely.
Failure to observe these guidelines may result in personal injury.
Scrapping Procedure
During the course of a vehicles useful life, certain situations may arise which will require the
disposal of a live and undeployed seat belt retractor pretensioner. Do not dispose of a live and
undeployed seat belt pretensioner through normal disposal channels until the seat belt
pretensioner has been deployed. The following information covers the proper procedures for
disposing of a live and undeployed seat belt pretensioner. Do not deploy the seat belt retractor
pretensioner in the following situations:
* After replacement of a seat belt retractor pretensioner under warranty. The seat belt retractor
pretensioner may need to be returned undeployed to the manufacturer.
* If the vehicle is the subject of a Product Liability report, GM1241, related to the SIR system or the
seat belt system. If the vehicle is subject to the Product Liability report, do not alter the SIR or seat
belt system in any manner.
* If the vehicle is involved in a campaign affecting the seat belt retractor pretensioners. Follow the
instructions in the Campaign Service Bulletin for proper SIR handling procedures.
Deployment Procedures
The seat belt pretensioner can be deployed inside or outside of the vehicle. The method used
depends upon the final disposition of the vehicle. Review the following procedures in order to
determine which will work best in a given situation.
Deployment Inside the Vehicle
Refer to Inflator Module Handling and Scrapping for deploying the pretensioner inside vehicle
under Vehicle Scrapping Procedure. See: Air Bag Systems/Air Bag/Service and Repair
Deployment Outside Vehicle for Seat Belt Pretensioners
Deploy the seat belt pretensioners outside of the vehicle when the vehicle will be returned to
service. Situations that require deployment outside of the vehicle include the following:
* Using the SIR diagnostics, it is determined that the seat belt pretensioner is malfunctioning.
* The seat belt pretensioner pigtail, if equipped, is damaged.
* The seat belt retractor pretensioner connector is damaged.
* The seat belt retractor pretensioner connector terminals are damaged.
Deployment and disposal of a malfunctioning seat belt pretensioner is subject to any required
retention period.
Caution: In order to prevent accidental deployment and the risk of personal injury, do not dispose of
an undeployed inflatable restraint seat belt pretensioner as normal shop waste. Undeployed seat
belt pretensioners contain substances that could cause severe illness or personal injury if their
sealed containers are damaged during disposal. Use the following deployment procedures to safely
dispose of an undeployed seat belt pretensioner. Failure to observe the following disposal methods
may be a violation of federal, state, or local laws.
Tools Required
* J 38826 SIR Deployment Harness
* J 38826-25 for seat belt pretensioner module adapter
* J 39401-B SIR Deployment Fixture
* An appropriate pigtail adaptor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Tensioner > Component Information >
Service and Repair > Procedures > Page 14295
1. Turn OFF the ignition. 2. Remove the ignition key. 3. Put on safety glasses. 4. Remove the seat
belt retractor pretensioner from the vehicle. 5. When carrying a seat belt retractor pretensioner to
the deployment area, keep fingers clear of the seat belt webbing.
6. Clear a space on the ground about 1.85 m (6 ft) in diameter for deployment of the seat belt
pretensioner. If possible, use a paved, outdoor location
free of activity. Otherwise, use a space free of activity on the shop floor. Make sure you have
sufficient ventilation.
7. Make sure no loose or flammable objects are in the area. 8. Place the J 39401-B in the center of
the cleared area. 9. Fill the fixture plastic reservoir with water or sand.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Tensioner > Component Information >
Service and Repair > Procedures > Page 14296
10. Mount the seat belt pretensioner in the SIR deployment fixture with the seat belt webbing
exiting through the top of the pretensioner. Use the
following mounting method.
* Adjust and secure two of the J 39401-B arms to the deployment fixture, with the short slotted
portions of the arms standing vertically and facing toward the center of the deployment fixture.
* To mount, use the proper size bolt and nut with washers in order to secure the seat belt
pretensioner mounting hole between the two deployment fixture brackets.
* Securely tighten all fasteners prior to deployment.
11. Inspect the J 38826 and the appropriate pigtail adapter for damage. Replace as needed. 12.
Short the 2 SIR deployment harness (1) leads together using 1 banana plug seated into the other.
13. Connect the appropriate pigtail adapter (2) to the SIR deployment harness (1). 14. Extend the
SIR deployment harness and adapter to full length from the deployment fixture. 15. Connect the
seat belt pretensioner connector to the adapter on the deployment harness.
Important: When deploying a seat belt retractor pretensioner, the rapid expansion of gas is very
loud. Notify the people in the immediate area that a seat belt pretensioner will be deployed.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Tensioner > Component Information >
Service and Repair > Procedures > Page 14297
16. Clear the area of people.
17. Separate the 2 banana plugs on the SIR deployment harness.
Important: When the seat belt retractor pretensioner deploys, the deployment fixture may jump
about 30 cm (1 ft) vertically. This is a normal reaction of the seat belt pretensioner due to the force
of the rapid expansion of gas inside the pretensioner.
18. Place a 12 V minimum/2 A minimum power source, such as a vehicle battery, near the shorted
end of the harness. 19. Connect the SIR deployment harness wires to the power source. Seat belt
pretensioner deployment will occur when contact is made. 20. Disconnect the SIR deployment
harness from the power source after the seat belt retractor pretensioner deploys.
21. Seat one banana plug into the other in order to short the deployment harness leads. 22. If the
seat belt retractor pretensioner did not deploy, disconnect the adapter and discontinue the
procedure. Contact the Technical Assistance
Group. Otherwise, proceed to the following steps.
23. Put on a pair of shop gloves. 24. Disconnect the pigtail adapter from the seat belt retractor
pretensioner as soon as possible. 25. Dispose of the deployed seat belt retractor pretensioner
through normal refuse channels. 26. Wash hands with a mild soap.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Tensioner > Component Information >
Service and Repair > Procedures > Page 14298
Seat Belt Tensioner: Removal and Replacement
Seat Belt Retractor Pretensioner Replacement - Front
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Seat Belt Systems > Seat Belt Tensioner > Component Information >
Service and Repair > Procedures > Page 14299
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Locations
Impact Sensor: Locations
SIR Component Views
Near the Hood Latch
1 - Inflatable Restraint Front End Sensor 2 - Radiator Core Support 3 - Cooling Fan - Right 4 Cooling Fan - Left
Center of the Floor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Locations > Page 14304
1 - Floor Panel 2 - Console 3 - YAW Rate and Lateral Acceleration Sensor 4 - Seat Belt
Pretensioner - Right 5 - Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF) 6 - Inflatable
Restraint Vehicle Rollover Sensor 7 - Inflatable Restraint Sensing and Diagnostic Module (SDM) 8
- Seat Belt Pretensioner - Left 9 - Inflatable Restraint side Impact Sensor (SIS) - Left (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Locations > Page 14305
Impact Sensor: Diagrams
SIR Connector End Views
Inflatable Restraint Front End Sensor
Inflatable Restraint Side Impact Sensor (SIS) - Left
Inflatable Restraint Side Impact Sensor (SIS) - Right
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Locations > Page 14306
Inflatable Restraint Vehicle Rollover Sensor (ASF)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Service and Repair > Inflatable Restraint Front End Sensor Replacement
Impact Sensor: Service and Repair Inflatable Restraint Front End Sensor Replacement
Inflatable Restraint Front End Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Service and Repair > Inflatable Restraint Front End Sensor Replacement > Page 14309
Impact Sensor: Service and Repair Inflatable Restraint Vehicle Rollover Sensor Replacement
Inflatable Restraint Vehicle Rollover Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Service and Repair > Inflatable Restraint Front End Sensor Replacement > Page 14310
Impact Sensor: Service and Repair Inflatable Restraint Side Impact Sensor Replacement
Inflatable Restraint Side Impact Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Impact Sensor >
Component Information > Service and Repair > Inflatable Restraint Front End Sensor Replacement > Page 14311
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Belt Buckle Switch
> Component Information > Locations
Seat Belt Buckle Switch: Locations
Seat Belt Component Views
Driver Seat
1 - Seat Belt Switch - Driver 2 - Seat Horizontal Motor - Driver (AG1) 3 - Heated Seat Element Driver Cushion (KA1) 4 - Heated Seat Element - Driver Back (KA1) 5 - Seat Adjuster Switch Driver (AG1) 6 - Seat Rear Vertical Motor - Driver (AG1) 7 - Seat Front Vertical Motor - Driver
(AG1)
Passenger Seat (Manual)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Belt Buckle Switch
> Component Information > Locations > Page 14315
1 - Heated Seat Element - Front Passenger Cushion (KA1) 2 - Seat Frame 3 - Heated Seat
Element - Front Passenger Back (KA1) 4 - Seat Belt Switch - Passenger 5 - Inflatable Restraint
Passenger Presence (PPS) Module 6 - Heated Seat Control Module - Passenger (KA1) 7 Inflatable Restraint Passenger Presence (PPS) Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Belt Buckle Switch
> Component Information > Locations > Page 14316
Seat Belt Buckle Switch: Diagrams
Seat Belt Connector End Views
Seat Belt Switch - Left
A/T Shift Lock Control Solenoid
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Error > Page 14325
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Error > Page 14326
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Error > Page 14327
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > Recalls: > 07174 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Error > Page 14328
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Update > Page 14333
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Update > Page 14334
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > Recalls: > 07182 > Aug > 07 > Recall - Seat Occupant Sensor
Calibration Update > Page 14335
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > Recalls: > NHTSA07V344000 > Aug > 07 > Recall 07V344000:
Seat Occupant System Reprogramming
Seat Occupant Sensor: Recalls Recall 07V344000: Seat Occupant System Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: >
06-08-50-009F > Dec > 10 > Restraints - Passenger Presence System Information
Seat Occupant Sensor: All Technical Service Bulletins Restraints - Passenger Presence System
Information
INFORMATION
Bulletin No.: 06-08-50-009F
Date: December 23, 2010
Subject: Information on Passenger Presence Sensing System (PPS or PSS) Concerns With
Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices
Models:
2011 and Prior GM Passenger Cars and Trucks Equipped with Passenger Presence Sensing
System
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 06-08-50-009E (Section 08 - Body and Accessories).
Concerns About Safety and Alterations to the Front Passenger Seat
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE THE
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT AS RELEASED BY GM FOR THAT
VEHICLE. DO NOT ALTER THE SEAT COVERS OR SEAT-RELATED EQUIPMENT. ANY
ALTERATIONS TO SEAT COVERS OR GM ACCESSORIES DEFEATS THE INTENDED DESIGN
OF THE SYSTEM. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF
SUCH IMPROPER SEAT ALTERATIONS, INCLUDING ANY WARRANTY REPAIRS INCURRED.
The front passenger seat in many GM vehicles is equipped with a passenger sensing system that
will turn off the right front passenger's frontal airbag under certain conditions, such as when an
infant or child seat is present. In some vehicles, the passenger sensing system will also turn off the
right front passenger's seat mounted side impact airbag. For the system to function properly,
sensors are used in the seat to detect the presence of a properly-seated occupant. The passenger
sensing system may not operate properly if the original seat trim is replaced (1) by non-GM covers,
upholstery or trim, or (2) by GM covers, upholstery or trim designed for a different vehicle or (3) by
GM covers, upholstery or trim that has been altered by a trim shop, or (4) if any object, such as an
aftermarket seat heater or a comfort enhancing pad or device is installed under the seat fabric or
between the occupant and the seat fabric.
Aftermarket Seat Heaters, Custom Upholstery, and Comfort Enhancing Pads or Devices
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE ONLY
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT RELEASED AS GM
ACCESSORIES FOR THAT VEHICLE. DO NOT USE ANY OTHER TYPE OF SEAT COVERS OR
SEAT-RELATED EQUIPMENT, OR GM ACCESSORIES RELEASED FOR OTHER VEHICLE
APPLICATIONS. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF SUCH
IMPROPER SEAT ACCESSORIES, INCLUDING ANY WARRANTY REPAIRS MADE
NECESSARY BY SUCH USE.
Many types of aftermarket accessories are available to customers, upfitting shops, and dealers.
Some of these devices sit on top of, or are Velcro(R) strapped to the seat while others such as seat
heaters are installed under the seat fabric. Additionally, seat covers made of leather or other
materials may have different padding thickness installed that could prevent the Passenger Sensing
System from functioning properly. Never alter the vehicle seats. Never add pads or other devices to
the seat cushion, as this may interfere with the operation of the Passenger Sensing System and
either prevent proper deployment of the passenger airbag or prevent proper suppression of the
passenger air bag.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07174 >
Aug > 07 > Recall - Seat Occupant Sensor Calibration Error
Technical Service Bulletin # 07174 Date: 070822
Recall - Seat Occupant Sensor Calibration Error
Subject: Airbag System - Passenger Sensing # 07174 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent vehicles fail
to conform to Federal Motor Vehicle Safety Standard (FMVSS) 208, Occupant Crash Protection. In
these vehicles, the right front passenger seat is built with a passenger sensing system. When
tested with a representative, unrestrained, small adult, the system is required to turn the right front
passenger's frontal airbag on. An error in the seat sensor calibration can cause it to fail this test. In
the event of a crash severe enough to activate the airbags, the frontal passenger airbag may not
deploy. This could increase the occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. If the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through the applicable system listed below. Dealers will not have a report available if they
have no involved vehicles currently assigned.
-- US dealers - GM DealerWorld Recall Information
-- Export dealers - sent directly to dealers
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07174 >
Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 14349
the status to the Sensing and Diagnostic module (SDM) whether to enable or suppress the
deployment of the passenger airbag. The PPS consists of an electronic control module (ECU),
sensor mat, heated seat element (if equipped), and PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Center
(TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Center and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
Be sure to turn off or disable any system that may put a load on the battery, such as automatic
headlamps, daytime running lights, interior lights, heating, ventilation, and air conditioning (HVAC)
system, radio, engine cooling fan, etc. A programming failure or control module damage may occur
if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Select PPS Offset Reset from the Supported
Controller screen in TIS2Web. Refer to SI and Service Programming System (SPS) documentation
for PSS programming instructions, if required.
Courtesy Transportation - For US
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07174 >
Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 14350
Submit a Product Recall Claim with the information shown.
Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim
Submission.
Customer Notification - For US
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07174 >
Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 14351
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07174 >
Aug > 07 > Recall - Seat Occupant Sensor Calibration Error > Page 14352
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07182 >
Aug > 07 > Recall - Seat Occupant Sensor Calibration Update
Technical Service Bulletin # 07182 Date: 070822
Recall - Seat Occupant Sensor Calibration Update
Subject: Airbag System - Passenger Sensing # 07182 - (08/22/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain
2007 Chevrolet Equinox and Pontiac Torrent vehicles. In these vehicles, the right front passenger
seat is built with a passenger sensing system. When tested with a representative, unrestrained
small adult, the system is required to turn the right front passenger's frontal airbag on. An error in
the seat sensor calibration can cause it to fail this test. In the event of a crash severe enough to
activate the airbags, the frontal passenger airbag may not deploy. This could increase the
occupant's risk of injury.
In addition, this condition can prevent the airbag from turning off when the seat is occupied by a
small child. In the event of a crash, the frontal airbag could deploy and the child could be killed or
seriously injured by the airbag.
The owner manual explains how to use the passenger sensing system. The airbag status indicator
displays the status of the airbag. Whenever the front passenger seat is occupied, the driver should
always check the airbag indicator to see if the airbag is on or off. If it is not correct for the situation,
the passenger should be moved to a different seat. A child restraint installed properly in the back
seat is the safest place for children.
Correction
Dealers are to reprogram the seat's electronic control unit (ECU).
Vehicles Involved
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided in GMinfoNet Recall Reports. Dealers will not have a report available if they have no
involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
No parts are required for this recall.
Service Procedure
Some 2007 Chevrolet Equinox and 2007 Pontiac Torrent vehicles have Passenger Presence
Systems (PPS) that will require a new calibration.
The Passenger Presence System (PPS) is used to monitor the weight and pattern of an occupant
on the front outboard passenger seat and communicate the status to the Sensing and Diagnostic
module (SDM) whether to enable or suppress the deployment of the passenger airbag. The PPS
consists of an electronic control module (ECU), sensor mat, heated seat element (if equipped), and
PASSENGER AIR BAG ON/OFF indicators.
Reprogram the electronic control module (ECU). Refer to the instructions below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07182 >
Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 14357
Tech 2 Legacy or J2534 Pass-Thru programming method for the PPS Offset Reset (PPS)
Important:
If Tech 2 Legacy or J2534 Pass-Thru programming fails, call Techline Customer Support Centre
(TCSC). A "Candi" module is necessary.
Calibration Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers required for
this service procedure are programmed into control modules via a Techline Tech 2(R) scan tool
and TIS 2 Web with the calibration update. Use TIS 2 Web version 8.0 for 2007 (available on
08/07/07). If you cannot access the calibration, call the Techline Customer Support Centre and it
will be provided.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Service Programming System (SPS)
application prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
- The RS-232 communication cable port
- The connection at the data link connector (DLC)
- The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary. Only use approved
Midtronics charger or Jumper Packs, etc. to maintain proper battery voltage during programming.
Important:
Before rezeroing the passenger presence system (PPS), the front passenger seat must be
completely empty of all items. The presence of any items on the front passenger seat will affect the
calibration and operation of the PPS. When rezeroing the PPS, the instrument panel cluster (IPC)
and dash lights will begin dimming ON and OFF. This is normal operation during the rezeroing
procedure and does not indicate additional system faults.
2. Reprogram the electronic control module (ECU). Refer to SI and Service Programming System
(SPS) documentation for PSS programming instructions, if required.
Courtesy Transportation
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07182 >
Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 14358
Claim Information
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: > 07182 >
Aug > 07 > Recall - Seat Occupant Sensor Calibration Update > Page 14359
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Occupant Sensor: >
NHTSA07V344000 > Aug > 07 > Recall 07V344000: Seat Occupant System Reprogramming
Seat Occupant Sensor: All Technical Service Bulletins Recall 07V344000: Seat Occupant System
Reprogramming
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V344000 MFR'S
REPORT DATE: August 06, 2007
COMPONENT: Air Bags: Frontal: Sensor/Control Module
POTENTIAL NUMBER OF UNITS AFFECTED: 437
SUMMARY: Certain sport utility vehicles fail to conform to the requirements of Federal Motor
Vehicle Safety Standard No. 208, "Occupant Crash Protection." In these vehicles, the right front
passenger seat is built with a passenger sensing system. When tested with a representative
unrestrained small adult, the system is required to turn the right front passenger's frontal airbag on.
An error in the seat sensor calibration can cause it to fail this test. In addition, this condition can
prevent the airbag from turning off when the seat is occupied by a small child.
CONSEQUENCE: Whenever the front passenger seat is occupied, the driver should always check
the airbag indicator to see if the airbag is on or off. If it is not correct for the situation, the passenger
should be moved to a different seat. This can increase the risk of injury to a seat occupant during
certain crash conditions.
REMEDY: Dealers will reprogram the seat's electronic control unit. The manufacturer has not yet
provided an owner notification schedule for this campaign. Owners may contact Chevrolet at
1-800-630-2438 or Pontiac at 1-800-620-7668.
NOTES: GM recall No. 070174. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Restraint Systems > Sensors and Switches - Restraint Systems > Seat Occupant Sensor >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Seat Occupant Sensor: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules
Seat Occupant Sensor: All Technical Service Bulletins Restraints - Passenger Presence System
Information
INFORMATION
Bulletin No.: 06-08-50-009F
Date: December 23, 2010
Subject: Information on Passenger Presence Sensing System (PPS or PSS) Concerns With
Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices
Models:
2011 and Prior GM Passenger Cars and Trucks Equipped with Passenger Presence Sensing
System
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 06-08-50-009E (Section 08 - Body and Accessories).
Concerns About Safety and Alterations to the Front Passenger Seat
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE THE
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT AS RELEASED BY GM FOR THAT
VEHICLE. DO NOT ALTER THE SEAT COVERS OR SEAT-RELATED EQUIPMENT. ANY
ALTERATIONS TO SEAT COVERS OR GM ACCESSORIES DEFEATS THE INTENDED DESIGN
OF THE SYSTEM. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF
SUCH IMPROPER SEAT ALTERATIONS, INCLUDING ANY WARRANTY REPAIRS INCURRED.
The front passenger seat in many GM vehicles is equipped with a passenger sensing system that
will turn off the right front passenger's frontal airbag under certain conditions, such as when an
infant or child seat is present. In some vehicles, the passenger sensing system will also turn off the
right front passenger's seat mounted side impact airbag. For the system to function properly,
sensors are used in the seat to detect the presence of a properly-seated occupant. The passenger
sensing system may not operate properly if the original seat trim is replaced (1) by non-GM covers,
upholstery or trim, or (2) by GM covers, upholstery or trim designed for a different vehicle or (3) by
GM covers, upholstery or trim that has been altered by a trim shop, or (4) if any object, such as an
aftermarket seat heater or a comfort enhancing pad or device is installed under the seat fabric or
between the occupant and the seat fabric.
Aftermarket Seat Heaters, Custom Upholstery, and Comfort Enhancing Pads or Devices
Important ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE ONLY
SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT RELEASED AS GM
ACCESSORIES FOR THAT VEHICLE. DO NOT USE ANY OTHER TYPE OF SEAT COVERS OR
SEAT-RELATED EQUIPMENT, OR GM ACCESSORIES RELEASED FOR OTHER VEHICLE
APPLICATIONS. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE OF SUCH
IMPROPER SEAT ACCESSORIES, INCLUDING ANY WARRANTY REPAIRS MADE
NECESSARY BY SUCH USE.
Many types of aftermarket accessories are available to customers, upfitting shops, and dealers.
Some of these devices sit on top of, or are Velcro(R) strapped to the seat while others such as seat
heaters are installed under the seat fabric. Additionally, seat covers made of leather or other
materials may have different padding thickness installed that could prevent the Passenger Sensing
System from functioning properly. Never alter the vehicle seats. Never add pads or other devices to
the seat cushion, as this may interfere with the operation of the Passenger Sensing System and
either prevent proper deployment of the passenger airbag or prevent proper suppression of the
passenger air bag.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antenna > Antenna, Navigation > Component
Information > Service and Repair
Antenna, Navigation: Service and Repair
Cellular and Navigation Antenna Assembly Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antenna > Antenna, Phone > Component
Information > Service and Repair
Antenna, Phone: Service and Repair
Cellular and Navigation Antenna Assembly Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antenna > Antenna, Radio > Antenna Cable >
Component Information > Service and Repair > Digital Radio Antenna Cable Replacement
Antenna Cable: Service and Repair Digital Radio Antenna Cable Replacement
Digital Radio Antenna Cable Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antenna > Antenna, Radio > Antenna Cable >
Component Information > Service and Repair > Digital Radio Antenna Cable Replacement > Page 14382
Antenna Cable: Service and Repair Antenna Cable Replacement
Antenna Cable Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Alarm Module,
(Vehicle Antitheft) > Component Information > Locations
Alarm Module: Locations
Immobilizer Component Views
Steering Column
1 - Turn Signal / Multifunction Switch 2 - Inflatable Restraint Steering Wheel Module Coil 3 Windshield Wiper / Washer Switch 4 - Theft Deterent Module 5 - Power Steering Motor 6 - Power
Steering Control Module (PSCM) 7 - Ignition Key Cylinder Lock Solenoid 8 - Ignition Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Alarm Module,
(Vehicle Antitheft) > Component Information > Locations > Page 14387
Theft Deterrent Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Alarm Module,
(Vehicle Antitheft) > Component Information > Locations > Page 14388
Alarm Module: Service and Repair
Theft Deterrent Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Hood Sensor/Switch
(For Alarm) > Component Information > Diagrams
Hood Sensor/Switch (For Alarm): Diagrams
Immobilizer Connector End Views
Hood Ajar Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming > Page 14401
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming > Page 14402
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming > Page 14403
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming > Page 14404
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming > Page 14405
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign
- Keyless Entry Transmitter/Module Programming > Page 14406
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov
> 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: Customer Interest Keyless Systems - Poor Range/TPM Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov
> 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 14412
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov
> 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 14413
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 14419
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 14420
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14425
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14426
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14427
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14428
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14429
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless
Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14430
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 14436
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 14437
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14443
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14444
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14445
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14446
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14447
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry
Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 14448
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Page 14449
Keyless Entry Module: Diagrams
Remote Function Connector End Views
Remote Control Door Lock Receiver (RCDRL)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Module > Component Information > Technical Service Bulletins > Page 14450
Keyless Entry Module: Service and Repair
Remote Control Door Lock Receiver Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > Customer
Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Start Transmitter: Customer Interest Keyless Systems - Poor Range/TPM Message
Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > Customer
Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 14460
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > Customer
Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 14461
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Keyless Start Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter
Diagnostic Tip
Keyless Start Transmitter: All Technical Service Bulletins Keyless System - Remote Start
Transmitter Diagnostic Tip
INFORMATION
Bulletin No.: 09-08-52-004A
Date: January 08, 2010
Subject: Diagnostic Tips/Recommendations on GM Accessory 2-Way Remote Start Transmitter
When Transmitter Battery is Weak or Dead
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac DTS, Escalade, Escalade
ESV, Escalade EXT 2007-2009 Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Cobalt, HHR,
Impala, Silverado, Tahoe 2009-2010 Chevrolet Malibu, Traverse 2007-2010 GMC Acadia, Sierra,
Yukon 2007-2009 Pontiac G5, G6, Solstice, Torrent 2008-2009 Pontiac G8 2007-2010 Saturn
AURA, OUTLOOK, SKY, VUE 2007-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models and model years. Please discard
Corporate Bulletin Number 09-08-52-004 (Section 08 - Body and Accessories).
Follow these procedures if a customer comments that their GM Accessory 2-way transmitter
stopped communicating with the vehicle.
About GM Accessory 2-Way Remote Start
The GM Accessory 2-way transmitter has the ability to operate a second vehicle equipped with a
2-way advanced remote start system, but often the 2-way transmitter may only be coded to one
vehicle. If the customer presses the left side button twice within one second, the 2-way transmitter
will enter second vehicle mode and will not control the original vehicle until a subsequent double
press of the left side button places the transmitter back in first vehicle mode. Each vehicle mode of
the 2-way transmitter should be thought of as an individual transmitter with its own unique code.
Test the Transmitter Battery
Note
This test should be performed prior to releasing the vehicle or transmitter to the customer.
All transmitter batteries should be tested immediately after installation of a 2-way remote start kit or
replacement of a transmitter battery using the following procedure.
1. Press the unlock button on the transmitter eight times consecutively. 2. After the eighth press of
the unlock button, observe the battery gauge located in the upper right corner of the LCD display.
The gauge should read
full (three bars inside the battery icon).
If after having a new battery installed, the battery goes dead within five months, the transmitter
could have high sleep current, causing the battery to go dead. Replace the transmitter.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition
exhibited is resolved without completing every step, the remaining steps do not need to be
performed.
Determine if Transmitter is in Second Vehicle Mode
1. Press and release any of the face buttons on the 2-way transmitter and observe the display on
power-up. 2. If the 2-way transmitter is in second vehicle mode, the second vehicle icon will be
displayed on the left side of the transmitter display. Is the 2-way
transmitter in second vehicle mode?
If Yes, the 2-way transmitter is working properly.
- Press and release the left side button twice within one second. The 2-way transmitter should exit
second vehicle mode.
- Press and release the lock button. Press and release the unlock button.
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Keyless Start Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter
Diagnostic Tip > Page 14467
- Confirm that the vehicle responds with the appropriate lock and unlock function.
- If Yes , the 2-way transmitter was in mode B.
- Press and release the left side button twice within one second. The 2-way transmitter should
enter second vehicle mode.
- Use the "next available slot" method in the scan tool to program the 2-way transmitter to the
2-way RCDLR. Refer to Remote Control Door Lock Transmitter Programming in SI.
- Both vehicle modes of the 2-way transmitter should now be coded to the vehicle.
If No:
The 2-way transmitter is not exhibiting the failure mode addressed by this bulletin. Refer to normal
diagnostic procedures.
Parts Information
For part numbers, usage and availability of 2-way remote start, refer to the Accessory Parts
Catalog or Corporate Bulletin Number 09-00-89-025A.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Keyless Start Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote
Start
Keyless Start Transmitter: All Technical Service Bulletins Keyless Start - 2-Way Advanced Remote
Start
INFORMATION
Bulletin No.: 09-00-89-025A
Date: October 26, 2009
Subject: GM Accessories: 2-Way Advanced Remote Start Systems Part Information
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac Escalade ESV, EXT
2008-2010 Cadillac DTS 2007-2009 Chevrolet Equinox, HHR 2007-2010 Chevrolet Avalanche,
Cobalt, Silverado, Tahoe 2008-2010 Chevrolet Impala, Malibu 2009-2010 Chevrolet Traverse
2007-2010 GMC Acadia, Sierra, Yukon 2008-2010 HUMMER H2 2007-2009 Pontiac Torrent
2007-2010 Pontiac G5, G6 2008-2010 Pontiac G8 2010 Pontiac Solstice 2007-2010 Saturn AURA,
OUTLOOK 2009-2010 Saturn VUE 2010 Saturn SKY
Attention:
This bulletin does not apply to GMODC dealers.
Supercede: This bulletin is being revised to add part numbers. Please discard Corporate Bulletin
Number 09-00-89-025 (Section 00 - General Information).
This bulletin is being published to provide information on locating service part numbers for GM
Accessory, 2-Way Advanced Remote Start Systems.
Dealers should consult the chart below and use the correct service part. Dealers should not use
entire kit for warranty or repair work.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Keyless Start Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote
Start > Page 14472
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Keyless Start Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote
Start > Page 14473
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Keyless Start Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote
Start > Page 14474
Parts Information
Service parts common to all 2-Way Advanced Remote Start Systems
Transmitter Battery 12493150
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Keyless Start Transmitter: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM
Message Displayed
Keyless Start Transmitter: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Keyless Start Transmitter: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM
Message Displayed > Page 14479
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Keyless Start Transmitter: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM
Message Displayed > Page 14480
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Other
Service Bulletins for Keyless Start Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter
Diagnostic Tip
Keyless Start Transmitter: All Technical Service Bulletins Keyless System - Remote Start
Transmitter Diagnostic Tip
INFORMATION
Bulletin No.: 09-08-52-004A
Date: January 08, 2010
Subject: Diagnostic Tips/Recommendations on GM Accessory 2-Way Remote Start Transmitter
When Transmitter Battery is Weak or Dead
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac DTS, Escalade, Escalade
ESV, Escalade EXT 2007-2009 Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Cobalt, HHR,
Impala, Silverado, Tahoe 2009-2010 Chevrolet Malibu, Traverse 2007-2010 GMC Acadia, Sierra,
Yukon 2007-2009 Pontiac G5, G6, Solstice, Torrent 2008-2009 Pontiac G8 2007-2010 Saturn
AURA, OUTLOOK, SKY, VUE 2007-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models and model years. Please discard
Corporate Bulletin Number 09-08-52-004 (Section 08 - Body and Accessories).
Follow these procedures if a customer comments that their GM Accessory 2-way transmitter
stopped communicating with the vehicle.
About GM Accessory 2-Way Remote Start
The GM Accessory 2-way transmitter has the ability to operate a second vehicle equipped with a
2-way advanced remote start system, but often the 2-way transmitter may only be coded to one
vehicle. If the customer presses the left side button twice within one second, the 2-way transmitter
will enter second vehicle mode and will not control the original vehicle until a subsequent double
press of the left side button places the transmitter back in first vehicle mode. Each vehicle mode of
the 2-way transmitter should be thought of as an individual transmitter with its own unique code.
Test the Transmitter Battery
Note
This test should be performed prior to releasing the vehicle or transmitter to the customer.
All transmitter batteries should be tested immediately after installation of a 2-way remote start kit or
replacement of a transmitter battery using the following procedure.
1. Press the unlock button on the transmitter eight times consecutively. 2. After the eighth press of
the unlock button, observe the battery gauge located in the upper right corner of the LCD display.
The gauge should read
full (three bars inside the battery icon).
If after having a new battery installed, the battery goes dead within five months, the transmitter
could have high sleep current, causing the battery to go dead. Replace the transmitter.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition
exhibited is resolved without completing every step, the remaining steps do not need to be
performed.
Determine if Transmitter is in Second Vehicle Mode
1. Press and release any of the face buttons on the 2-way transmitter and observe the display on
power-up. 2. If the 2-way transmitter is in second vehicle mode, the second vehicle icon will be
displayed on the left side of the transmitter display. Is the 2-way
transmitter in second vehicle mode?
If Yes, the 2-way transmitter is working properly.
- Press and release the left side button twice within one second. The 2-way transmitter should exit
second vehicle mode.
- Press and release the lock button. Press and release the unlock button.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Other
Service Bulletins for Keyless Start Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter
Diagnostic Tip > Page 14486
- Confirm that the vehicle responds with the appropriate lock and unlock function.
- If Yes , the 2-way transmitter was in mode B.
- Press and release the left side button twice within one second. The 2-way transmitter should
enter second vehicle mode.
- Use the "next available slot" method in the scan tool to program the 2-way transmitter to the
2-way RCDLR. Refer to Remote Control Door Lock Transmitter Programming in SI.
- Both vehicle modes of the 2-way transmitter should now be coded to the vehicle.
If No:
The 2-way transmitter is not exhibiting the failure mode addressed by this bulletin. Refer to normal
diagnostic procedures.
Parts Information
For part numbers, usage and availability of 2-way remote start, refer to the Accessory Parts
Catalog or Corporate Bulletin Number 09-00-89-025A.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Other
Service Bulletins for Keyless Start Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote
Start
Keyless Start Transmitter: All Technical Service Bulletins Keyless Start - 2-Way Advanced Remote
Start
INFORMATION
Bulletin No.: 09-00-89-025A
Date: October 26, 2009
Subject: GM Accessories: 2-Way Advanced Remote Start Systems Part Information
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac Escalade ESV, EXT
2008-2010 Cadillac DTS 2007-2009 Chevrolet Equinox, HHR 2007-2010 Chevrolet Avalanche,
Cobalt, Silverado, Tahoe 2008-2010 Chevrolet Impala, Malibu 2009-2010 Chevrolet Traverse
2007-2010 GMC Acadia, Sierra, Yukon 2008-2010 HUMMER H2 2007-2009 Pontiac Torrent
2007-2010 Pontiac G5, G6 2008-2010 Pontiac G8 2010 Pontiac Solstice 2007-2010 Saturn AURA,
OUTLOOK 2009-2010 Saturn VUE 2010 Saturn SKY
Attention:
This bulletin does not apply to GMODC dealers.
Supercede: This bulletin is being revised to add part numbers. Please discard Corporate Bulletin
Number 09-00-89-025 (Section 00 - General Information).
This bulletin is being published to provide information on locating service part numbers for GM
Accessory, 2-Way Advanced Remote Start Systems.
Dealers should consult the chart below and use the correct service part. Dealers should not use
entire kit for warranty or repair work.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Other
Service Bulletins for Keyless Start Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote
Start > Page 14491
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Other
Service Bulletins for Keyless Start Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote
Start > Page 14492
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Starting System > Keyless Start Transmitter > Component Information > Technical Service Bulletins > All Other
Service Bulletins for Keyless Start Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote
Start > Page 14493
Parts Information
Service parts common to all 2-Way Advanced Remote Start Systems
Transmitter Battery 12493150
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Transmitter > Keyless Entry Transmitter Battery > Component Information > Service and Repair
Keyless Entry Transmitter Battery: Service and Repair
Transmitter Battery Replacement
Notice: Use of the wrong battery size may damage the transmitter.
Notice: When removing the battery, use care not to touch any of the circuitry. Static from your body
transferred to these surfaces may damage the transmitter.
Important: If the transmitter won't work, perform the RKE System Check before replacing the
battery. Also, before replacing the battery in the transmitter, make sure that the battery is touching
both the negative and positive contacts inside of the transmitter.
For battery replacement, use a Panasonic type CR2032 3-volt battery, or equivalent.
1. Use a small coin, or flat-head screwdriver, to separate the bottom of the transmitter from the top.
Notice: Do not use sharp objects to help slide the battery out of the clip. This may result in damage
to the circuit board.
2. Remove the circuit board from the transmitter housing and key pad by pressing on the LOCK
button.
3. Remove the battery by sliding the battery out of the battery clip. This may require a push from
the back side of the clip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Antitheft and Alarm Systems > Keyless Entry >
Keyless Entry Transmitter > Keyless Entry Transmitter Battery > Component Information > Service and Repair > Page
14498
4. Replace the battery with the new one making sure that the (+) side of the battery faces away
from the circuit board.
Important: Be careful not to pinch the key pad while closing the housing.
5. Reassemble the circuit board and key pad, and replace them in the transmitter housing which
does not contain the key pad openings.
6. Line up and replace the lower housing by snapping the upper and lower housings together. 7.
Test the operation of the transmitter with the vehicle by pressing and holding the LOCK and
UNLOCK buttons for 7 or more seconds. This is
required to reestablish communications with the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Cellular Phone Microphone >
Component Information > Service and Repair
Cellular Phone Microphone: Service and Repair
Mobile Telephone Microphone Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls
to OnStar(R)
Technical Service Bulletin # 10037 Date: 100420
Campaign - Unwanted Repeat Calls to OnStar(R)
CUSTOMER SATISFACTION
Bulletin No.: 10037
Date: April 20, 2010
Subject: 10037 - Unwanted Repeat Calls to OnStar(R)
Models:
2003 Buick LeSabre 2004-2006 Buick Rendezvous 2005 Buick LeSabre, Terraza 2005-2006 Buick
LaCrosse/Allure 2006-2008 Buick Lucerne 2008 Buick LaCrosse/Allure 2008-2009 Buick Enclave
2003 Cadillac CTS 2004 Cadillac Escalade 2004-2005 Cadillac CTS-V, Deville 2005 Cadillac
Escalade ESV, SRX 2005-2006 Cadillac STS 2005-2008 Cadillac CTS 2006-2008 Cadillac DTS
2007 Cadillac Escalade, Escalade EXT 2007-2008 Cadillac Escalade ESV 2008 Cadillac SRX,
STS 2002 Chevrolet Impala 2003-2008 Chevrolet Suburban 2003-2009 Chevrolet Silverado
2004-2008 Chevrolet Impala 2005 Chevrolet Colorado, Corvette, Malibu 2005-2006 Chevrolet
Uplander 2005-2008 Chevrolet Avalanche, Tahoe, TrailBlazer 2006 Chevrolet HHR, Monte Carlo
2006-2008 Chevrolet Equinox 2007-2008 Chevrolet Corvette 2008 Chevrolet HHR 2008-2009
Chevrolet Cobalt, Colorado, Malibu, Uplander 2003 GMC Envoy XL, Sierra, Yukon XL 2004-2008
GMC Yukon 2005-2009 GMC Sierra 2005-2008 GMC Yukon XL 2006-2008 GMC Envoy 2007
GMC Canyon 2007-2009 GMC Acadia 2006 HUMMER H2 2006-2008 HUMMER H3 2008
HUMMER H2 2003 Oldsmobile Silhouette 2005 Montana SV6 2005-2008 Pontiac Grand Prix 2006
Pontiac G6, Vibe 2007 Pontiac Montana SV6 2007-2008 Pontiac Solstice 2008 Pontiac G6, Torrent
2008-2009 Pontiac G5, G8 2009 Pontiac G3, Montana SV6 2005-2007 Saturn ION
2006-2009Saturn VUE 2007-2008 Saturn AURA, OUTLOOK, SKY Equipped with OnStar(R) (RPO
UE1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls
to OnStar(R) > Page 14511
THIS PROGRAM IS IN EFFECT UNTIL APRIL 30, 2011.
Condition
Certain 2002-2009 model year vehicles equipped with OnStar(R) may have a condition in which
the vehicle's OnStar(R) system repeatedly makes incomplete calls to OnStar(R) without the
vehicle's occupant(s) input or knowledge. Customer initiated Blue Button call, Emergency calls,
and Automatic Crash Notification calls will also fail to establish a data connection with the
OnStar(R) Call Center. Eventually, the customer's call will connect as a voice only line and the
customer will be able to talk with an OnStar(R) advisor; however, the advisor will not get crucial
customer data such as vehicle identification and location.
Correction
Dealers/retailers are to replace the OnStar(R) module (VCIM).
Vehicles Involved
Involved are certain 2002-2009 model year vehicles equipped with OnStar(R), and built within
these VIN breakpoints:
Note:
Some model years/models have only one vehicle involved.
Important Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using
GMVIS (dealers/retailers using WINS) or the Investigate Vehicle History link (dealers/retailers using
GWM). Not all vehicles within the above breakpoints may be involved.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided to dealers/retailers through the GM GlobalConnect Recall Reports. Dealers/retailers
will not have a report available if they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this program is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
program.
Parts Information
US: OnStar(R) modules required for this program are to be obtained by contacting Autocraft
Electronics via the web at www.autocraft.com, and selecting the catalog item that contains bulletin
number 10037 (or PIC 4893B), or by calling 1-800-336-3998. Dealer must provide the VIN, R.O.
number, and the current vehicle mileage.
Canada: OnStar(R) modules required for this program are to be obtained by contacting MASS
Electronics at 1-877-410-6277. Dealer must provide the VIN, R.O. number, and the current vehicle
mileage.
DO NOT ORDER ONSTAR(R) MODULES FROM GENERAL MOTORS CUSTOMER CARE AND
AFTERSALES (GMCC&A;), SATURN SERVICE PARTS OPERATION (SSPO), OR THE
TECHNICAL ASSISTANCE CENTER (TAC).
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
1. Submit a claim using the table below.
2. Courtesy Transportation - For dealers/retailers using WINS, submit using normal labor code; for
dealers/retailers using GWM - submit as Net Item under the repair labor code.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls
to OnStar(R) > Page 14512
* Dealers using WINs: Add 0.2 hours to the labor time for administrative allowance for the module
exchange.
Dealers using GWM: Submit 0.2 hours administrative allowance under "Administration Time" for
the module exchange.
** The $25 represents the additional net amount allowed for the module exchange.
*** Dealers are to claim only administrative allowance of 0.2 hours when the module is replaced by
Masscomp's Mobile Unit. Dealers using WINS should submit the 0.2 hours administrative
allowance in labor time. Dealer using GWM should submit the 0.2 hours administrative allowance
under Administrative Time.
Customer Notification
OnStar will notify customers of this program on their vehicle.
Dealer Program Responsibility
All unsold new vehicles in dealers'/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through April 30, 2011.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for
your use in contacting customers. Program follow-up cards should not be used for this purpose,
since the customer may not as yet have received the notification letter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls
to OnStar(R) > Page 14513
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through April 30, 2011, you must take the steps necessary to be sure
the program correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Service Procedure
Note Do NOT replace the inside rear view mirror in tandem with this concern. The mirror has no
bearing on this specific issue.
1. Remove the OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module (VCIM)
in SI). Refer to SI for module removal instructions.
Note Inform customer that all Bluetooth devices must be paired with the new VCIM. Bluetooth
devices that have not been paired to the new VCIM will not function properly.
2. Install the new OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module
(VCIM) in SI). Refer to SI for module installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > System Information > Technical Service Bulletins > M/T - Hydraulic
Clutch Bleeding Procedure Improvement
Clutch Hydraulic System: Technical Service Bulletins M/T - Hydraulic Clutch Bleeding Procedure
Improvement
Bulletin No.: 01-07-31-002B
Date: November 01, 2006
INFORMATION
Subject: Improved Bleeding Procedure for Hydraulic Clutch Release System
Models: 2007 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2007 and
Prior Chevrolet and GMC 6-7F T-Series Medium Duty Tilt Cab Models 2007 and Prior Isuzu
F-Series Medium Duty Tilt Cab Models 2006-2007 HUMMER H3
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
01-07-31-002A (Section 07 - Transmission/Transaxle). This bulletin is being issued to inform
dealers of an improved procedure to aid in the ease of bleeding the clutch hydraulic system for the
above listed vehicles. This procedure can be used anytime air is introduced into the hydraulic
system. Following this procedure may also reduce the number of unnecessary parts replaced for
low clutch pedal reserve and high shift effort.
Verify that all the lines and fittings are dry and secure.
Clean the dirt and grease from the reservoir cap in order to ensure that no foreign substances enter
the system.
Remove the reservoir cap.
Fill the reservoir to the proper level with the required fluid.
Attach the J 43485 (Adapter) to the J 35555 (Mity Vac), or equivalent.
Brake fluid will deteriorate the rubber on J 43485. Use a clean shop cloth to wipe away the fluid
after each use.
Place and hold the adapter on the reservoir filler neck to ensure a tight fit. In some cases, the
adapter will fit into the reservoir opening.
Apply a vacuum of 51-68 kPa (15-20 hg) and remove the adapter.
Refill the reservoir to the proper level.
Repeat Steps 6 and 7.
If needed, refill the reservoir and continue to pull a vacuum until no more bubbles can be seen in
the reservoir or until the fluid level no longer drops.
The vehicle will move if started in gear before the Actuator Cylinder is refilled and operational. Start
the vehicle the first time in neutral to help prevent personal injury from vehicle movement and see if
the transmission will shift easily into gear.
Pump the clutch pedal until firm (to refill actuator cylinder).
Add additional fluid if needed.
Test drive vehicle to ensure proper operation.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter Diagnostic Tip
Communications Control Module: All Technical Service Bulletins OnStar(R) - Availability for
Hearing Impaired
INFORMATION
Bulletin No.: 06-08-46-005B
Date: February 11, 2010
Subject: Availability of OnStar(R) for Hearing Impaired
Models:
2007-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn and Saab) Except 2007
Cadillac CTS Except 2007-2008 HUMMER H2, H2 SUT Except 2007 Pontiac Montana SV6 Except
2007-2010 Pontiac Vibe Except 2007 Saturn ION, VUE Except 2008 Saturn Astra
Supercede: This bulletin is being revised to add a Note regarding 2009 Bluetooth(R)-equipped
vehicles, additional models and model years. Please discard Corporate Bulletin Number
06-08-46-005A (Section 08 - Body and Accessories).
Important This service bulletin is not applicable to 'GM of Canada' dealers and retailers.
Note
On 2009 and newer model year vehicles equipped with the Bluetooth(R) feature (option code
UPF), when up-fitted with TTY capabilities, the Bluetooth(R) feature will be disabled.
OnStar with Text Telephone Capability (TTY)
General Motors is pleased to announce that the safety and security of OnStar is now available to
our deaf, hard of hearing and speech impaired customers. The current vehicles listed above, as
well as forthcoming vehicles equipped with OnStar hardware version 7.0 or higher, have the ability
to utilize texting telephones. Vehicle specific TTY capability can be determined by utilizing the VIN
lookup Tool. Additional information may be found by referring to www.onstar.com/tty.
TTY equipment allows people who are deaf, hard of hearing or speech impaired, in-vehicle access
to 911 and basic OnStar(R) services by pressing the OnStar(R) blue button or red emergency
button. The keypad provides a means to communicate by allowing customers to type messages
back and forth, with an OnStar(R) advisor or other party when using the OnStar(R) Hands-Free
Calling feature. A TTY is required at both ends of the conversation in order to communicate.
OnStar(R) Turn by Turn Navigation and Virtual Advisor are not available with the addition of TTY.
The Reimbursement Program
This equipment will be made available to eligible customers through GM Mobility and OnStar(R).
Under this program, the customer must complete a GM Mobility application form. To take
advantage of the program, vehicles must be adapted at the time of delivery for purchase / lease
and a dealer claim ($1,000 Maximum per GM Mobility guidelines) with the application form
submitted to GM Mobility. Saab dealers must fax documents. GM Dealers will receive electronic
reimbursement directly from GM Mobility. Saab dealers will receive a check directly from
OnStar(R). Additional questions or concerns should be directed to the OnStar Dealer Center.
How to Order
To order the dealer installed kit, contact AutoCraft Electronics or via the web at www.autocraft.com.
The kit consists of an OnStar Interface Module, a Dial Pad (for making calls), OTIM wiring harness,
the TTY device, installation/Tech 2(R) programming instructions and owner's guide.
Warranty Information
The Ultra-Tec Compact C TTY device is manufactured by an independent manufacturer and is
covered by the manufacturer's warranty. It is not covered under the GM New Vehicle Limited
Warranty. All other parts (OTIM, dial pad and OTIM wiring harness) are covered by the standard
GM new vehicle parts and labor warranty. Replacement parts are available through AutoCraft
Electronics. Contact AutoCraft Electronics or via the web.
Warranty claims for the OTIM, dial pad and OTIM wiring harness should be submitted through
normal warranty procedures using a sublet warranty claim with GM Labor Operation R5140.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter Diagnostic Tip > Page 14522
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
09-00-89-025A > Oct > 09 > Recalls: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R)
Technical Service Bulletin # 10037 Date: 100420
Campaign - Unwanted Repeat Calls to OnStar(R)
CUSTOMER SATISFACTION
Bulletin No.: 10037
Date: April 20, 2010
Subject: 10037 - Unwanted Repeat Calls to OnStar(R)
Models:
2003 Buick LeSabre 2004-2006 Buick Rendezvous 2005 Buick LeSabre, Terraza 2005-2006 Buick
LaCrosse/Allure 2006-2008 Buick Lucerne 2008 Buick LaCrosse/Allure 2008-2009 Buick Enclave
2003 Cadillac CTS 2004 Cadillac Escalade 2004-2005 Cadillac CTS-V, Deville 2005 Cadillac
Escalade ESV, SRX 2005-2006 Cadillac STS 2005-2008 Cadillac CTS 2006-2008 Cadillac DTS
2007 Cadillac Escalade, Escalade EXT 2007-2008 Cadillac Escalade ESV 2008 Cadillac SRX,
STS 2002 Chevrolet Impala 2003-2008 Chevrolet Suburban 2003-2009 Chevrolet Silverado
2004-2008 Chevrolet Impala 2005 Chevrolet Colorado, Corvette, Malibu 2005-2006 Chevrolet
Uplander 2005-2008 Chevrolet Avalanche, Tahoe, TrailBlazer 2006 Chevrolet HHR, Monte Carlo
2006-2008 Chevrolet Equinox 2007-2008 Chevrolet Corvette 2008 Chevrolet HHR 2008-2009
Chevrolet Cobalt, Colorado, Malibu, Uplander 2003 GMC Envoy XL, Sierra, Yukon XL 2004-2008
GMC Yukon 2005-2009 GMC Sierra 2005-2008 GMC Yukon XL 2006-2008 GMC Envoy 2007
GMC Canyon 2007-2009 GMC Acadia 2006 HUMMER H2 2006-2008 HUMMER H3 2008
HUMMER H2 2003 Oldsmobile Silhouette 2005 Montana SV6 2005-2008 Pontiac Grand Prix 2006
Pontiac G6, Vibe 2007 Pontiac Montana SV6 2007-2008 Pontiac Solstice 2008 Pontiac G6, Torrent
2008-2009 Pontiac G5, G8 2009 Pontiac G3, Montana SV6 2005-2007 Saturn ION
2006-2009Saturn VUE 2007-2008 Saturn AURA, OUTLOOK, SKY Equipped with OnStar(R) (RPO
UE1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
09-00-89-025A > Oct > 09 > Recalls: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14531
THIS PROGRAM IS IN EFFECT UNTIL APRIL 30, 2011.
Condition
Certain 2002-2009 model year vehicles equipped with OnStar(R) may have a condition in which
the vehicle's OnStar(R) system repeatedly makes incomplete calls to OnStar(R) without the
vehicle's occupant(s) input or knowledge. Customer initiated Blue Button call, Emergency calls,
and Automatic Crash Notification calls will also fail to establish a data connection with the
OnStar(R) Call Center. Eventually, the customer's call will connect as a voice only line and the
customer will be able to talk with an OnStar(R) advisor; however, the advisor will not get crucial
customer data such as vehicle identification and location.
Correction
Dealers/retailers are to replace the OnStar(R) module (VCIM).
Vehicles Involved
Involved are certain 2002-2009 model year vehicles equipped with OnStar(R), and built within
these VIN breakpoints:
Note:
Some model years/models have only one vehicle involved.
Important Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using
GMVIS (dealers/retailers using WINS) or the Investigate Vehicle History link (dealers/retailers using
GWM). Not all vehicles within the above breakpoints may be involved.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided to dealers/retailers through the GM GlobalConnect Recall Reports. Dealers/retailers
will not have a report available if they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this program is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
program.
Parts Information
US: OnStar(R) modules required for this program are to be obtained by contacting Autocraft
Electronics via the web at www.autocraft.com, and selecting the catalog item that contains bulletin
number 10037 (or PIC 4893B), or by calling 1-800-336-3998. Dealer must provide the VIN, R.O.
number, and the current vehicle mileage.
Canada: OnStar(R) modules required for this program are to be obtained by contacting MASS
Electronics at 1-877-410-6277. Dealer must provide the VIN, R.O. number, and the current vehicle
mileage.
DO NOT ORDER ONSTAR(R) MODULES FROM GENERAL MOTORS CUSTOMER CARE AND
AFTERSALES (GMCC&A;), SATURN SERVICE PARTS OPERATION (SSPO), OR THE
TECHNICAL ASSISTANCE CENTER (TAC).
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
1. Submit a claim using the table below.
2. Courtesy Transportation - For dealers/retailers using WINS, submit using normal labor code; for
dealers/retailers using GWM - submit as Net Item under the repair labor code.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
09-00-89-025A > Oct > 09 > Recalls: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14532
* Dealers using WINs: Add 0.2 hours to the labor time for administrative allowance for the module
exchange.
Dealers using GWM: Submit 0.2 hours administrative allowance under "Administration Time" for
the module exchange.
** The $25 represents the additional net amount allowed for the module exchange.
*** Dealers are to claim only administrative allowance of 0.2 hours when the module is replaced by
Masscomp's Mobile Unit. Dealers using WINS should submit the 0.2 hours administrative
allowance in labor time. Dealer using GWM should submit the 0.2 hours administrative allowance
under Administrative Time.
Customer Notification
OnStar will notify customers of this program on their vehicle.
Dealer Program Responsibility
All unsold new vehicles in dealers'/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through April 30, 2011.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for
your use in contacting customers. Program follow-up cards should not be used for this purpose,
since the customer may not as yet have received the notification letter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
09-00-89-025A > Oct > 09 > Recalls: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14533
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through April 30, 2011, you must take the steps necessary to be sure
the program correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Service Procedure
Note Do NOT replace the inside rear view mirror in tandem with this concern. The mirror has no
bearing on this specific issue.
1. Remove the OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module (VCIM)
in SI). Refer to SI for module removal instructions.
Note Inform customer that all Bluetooth devices must be paired with the new VCIM. Bluetooth
devices that have not been paired to the new VCIM will not function properly.
2. Install the new OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module
(VCIM) in SI). Refer to SI for module installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
09-00-89-025A > Oct > 09 > All Other Service Bulletins for Communications Control Module: > 06-08-46-005B > Feb > 10 >
OnStar(R) - Availability for Hearing Impaired
Communications Control Module: All Technical Service Bulletins OnStar(R) - Availability for
Hearing Impaired
INFORMATION
Bulletin No.: 06-08-46-005B
Date: February 11, 2010
Subject: Availability of OnStar(R) for Hearing Impaired
Models:
2007-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn and Saab) Except 2007
Cadillac CTS Except 2007-2008 HUMMER H2, H2 SUT Except 2007 Pontiac Montana SV6 Except
2007-2010 Pontiac Vibe Except 2007 Saturn ION, VUE Except 2008 Saturn Astra
Supercede: This bulletin is being revised to add a Note regarding 2009 Bluetooth(R)-equipped
vehicles, additional models and model years. Please discard Corporate Bulletin Number
06-08-46-005A (Section 08 - Body and Accessories).
Important This service bulletin is not applicable to 'GM of Canada' dealers and retailers.
Note
On 2009 and newer model year vehicles equipped with the Bluetooth(R) feature (option code
UPF), when up-fitted with TTY capabilities, the Bluetooth(R) feature will be disabled.
OnStar with Text Telephone Capability (TTY)
General Motors is pleased to announce that the safety and security of OnStar is now available to
our deaf, hard of hearing and speech impaired customers. The current vehicles listed above, as
well as forthcoming vehicles equipped with OnStar hardware version 7.0 or higher, have the ability
to utilize texting telephones. Vehicle specific TTY capability can be determined by utilizing the VIN
lookup Tool. Additional information may be found by referring to www.onstar.com/tty.
TTY equipment allows people who are deaf, hard of hearing or speech impaired, in-vehicle access
to 911 and basic OnStar(R) services by pressing the OnStar(R) blue button or red emergency
button. The keypad provides a means to communicate by allowing customers to type messages
back and forth, with an OnStar(R) advisor or other party when using the OnStar(R) Hands-Free
Calling feature. A TTY is required at both ends of the conversation in order to communicate.
OnStar(R) Turn by Turn Navigation and Virtual Advisor are not available with the addition of TTY.
The Reimbursement Program
This equipment will be made available to eligible customers through GM Mobility and OnStar(R).
Under this program, the customer must complete a GM Mobility application form. To take
advantage of the program, vehicles must be adapted at the time of delivery for purchase / lease
and a dealer claim ($1,000 Maximum per GM Mobility guidelines) with the application form
submitted to GM Mobility. Saab dealers must fax documents. GM Dealers will receive electronic
reimbursement directly from GM Mobility. Saab dealers will receive a check directly from
OnStar(R). Additional questions or concerns should be directed to the OnStar Dealer Center.
How to Order
To order the dealer installed kit, contact AutoCraft Electronics or via the web at www.autocraft.com.
The kit consists of an OnStar Interface Module, a Dial Pad (for making calls), OTIM wiring harness,
the TTY device, installation/Tech 2(R) programming instructions and owner's guide.
Warranty Information
The Ultra-Tec Compact C TTY device is manufactured by an independent manufacturer and is
covered by the manufacturer's warranty. It is not covered under the GM New Vehicle Limited
Warranty. All other parts (OTIM, dial pad and OTIM wiring harness) are covered by the standard
GM new vehicle parts and labor warranty. Replacement parts are available through AutoCraft
Electronics. Contact AutoCraft Electronics or via the web.
Warranty claims for the OTIM, dial pad and OTIM wiring harness should be submitted through
normal warranty procedures using a sublet warranty claim with GM Labor Operation R5140.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
09-00-89-025A > Oct > 09 > All Other Service Bulletins for Communications Control Module: > 06-08-46-005B > Feb > 10 >
OnStar(R) - Availability for Hearing Impaired > Page 14539
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 >
Campaign - Unwanted Repeat Calls to OnStar(R)
Technical Service Bulletin # 10037 Date: 100420
Campaign - Unwanted Repeat Calls to OnStar(R)
CUSTOMER SATISFACTION
Bulletin No.: 10037
Date: April 20, 2010
Subject: 10037 - Unwanted Repeat Calls to OnStar(R)
Models:
2003 Buick LeSabre 2004-2006 Buick Rendezvous 2005 Buick LeSabre, Terraza 2005-2006 Buick
LaCrosse/Allure 2006-2008 Buick Lucerne 2008 Buick LaCrosse/Allure 2008-2009 Buick Enclave
2003 Cadillac CTS 2004 Cadillac Escalade 2004-2005 Cadillac CTS-V, Deville 2005 Cadillac
Escalade ESV, SRX 2005-2006 Cadillac STS 2005-2008 Cadillac CTS 2006-2008 Cadillac DTS
2007 Cadillac Escalade, Escalade EXT 2007-2008 Cadillac Escalade ESV 2008 Cadillac SRX,
STS 2002 Chevrolet Impala 2003-2008 Chevrolet Suburban 2003-2009 Chevrolet Silverado
2004-2008 Chevrolet Impala 2005 Chevrolet Colorado, Corvette, Malibu 2005-2006 Chevrolet
Uplander 2005-2008 Chevrolet Avalanche, Tahoe, TrailBlazer 2006 Chevrolet HHR, Monte Carlo
2006-2008 Chevrolet Equinox 2007-2008 Chevrolet Corvette 2008 Chevrolet HHR 2008-2009
Chevrolet Cobalt, Colorado, Malibu, Uplander 2003 GMC Envoy XL, Sierra, Yukon XL 2004-2008
GMC Yukon 2005-2009 GMC Sierra 2005-2008 GMC Yukon XL 2006-2008 GMC Envoy 2007
GMC Canyon 2007-2009 GMC Acadia 2006 HUMMER H2 2006-2008 HUMMER H3 2008
HUMMER H2 2003 Oldsmobile Silhouette 2005 Montana SV6 2005-2008 Pontiac Grand Prix 2006
Pontiac G6, Vibe 2007 Pontiac Montana SV6 2007-2008 Pontiac Solstice 2008 Pontiac G6, Torrent
2008-2009 Pontiac G5, G8 2009 Pontiac G3, Montana SV6 2005-2007 Saturn ION
2006-2009Saturn VUE 2007-2008 Saturn AURA, OUTLOOK, SKY Equipped with OnStar(R) (RPO
UE1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 >
Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14550
THIS PROGRAM IS IN EFFECT UNTIL APRIL 30, 2011.
Condition
Certain 2002-2009 model year vehicles equipped with OnStar(R) may have a condition in which
the vehicle's OnStar(R) system repeatedly makes incomplete calls to OnStar(R) without the
vehicle's occupant(s) input or knowledge. Customer initiated Blue Button call, Emergency calls,
and Automatic Crash Notification calls will also fail to establish a data connection with the
OnStar(R) Call Center. Eventually, the customer's call will connect as a voice only line and the
customer will be able to talk with an OnStar(R) advisor; however, the advisor will not get crucial
customer data such as vehicle identification and location.
Correction
Dealers/retailers are to replace the OnStar(R) module (VCIM).
Vehicles Involved
Involved are certain 2002-2009 model year vehicles equipped with OnStar(R), and built within
these VIN breakpoints:
Note:
Some model years/models have only one vehicle involved.
Important Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using
GMVIS (dealers/retailers using WINS) or the Investigate Vehicle History link (dealers/retailers using
GWM). Not all vehicles within the above breakpoints may be involved.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided to dealers/retailers through the GM GlobalConnect Recall Reports. Dealers/retailers
will not have a report available if they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this program is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
program.
Parts Information
US: OnStar(R) modules required for this program are to be obtained by contacting Autocraft
Electronics via the web at www.autocraft.com, and selecting the catalog item that contains bulletin
number 10037 (or PIC 4893B), or by calling 1-800-336-3998. Dealer must provide the VIN, R.O.
number, and the current vehicle mileage.
Canada: OnStar(R) modules required for this program are to be obtained by contacting MASS
Electronics at 1-877-410-6277. Dealer must provide the VIN, R.O. number, and the current vehicle
mileage.
DO NOT ORDER ONSTAR(R) MODULES FROM GENERAL MOTORS CUSTOMER CARE AND
AFTERSALES (GMCC&A;), SATURN SERVICE PARTS OPERATION (SSPO), OR THE
TECHNICAL ASSISTANCE CENTER (TAC).
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
1. Submit a claim using the table below.
2. Courtesy Transportation - For dealers/retailers using WINS, submit using normal labor code; for
dealers/retailers using GWM - submit as Net Item under the repair labor code.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 >
Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14551
* Dealers using WINs: Add 0.2 hours to the labor time for administrative allowance for the module
exchange.
Dealers using GWM: Submit 0.2 hours administrative allowance under "Administration Time" for
the module exchange.
** The $25 represents the additional net amount allowed for the module exchange.
*** Dealers are to claim only administrative allowance of 0.2 hours when the module is replaced by
Masscomp's Mobile Unit. Dealers using WINS should submit the 0.2 hours administrative
allowance in labor time. Dealer using GWM should submit the 0.2 hours administrative allowance
under Administrative Time.
Customer Notification
OnStar will notify customers of this program on their vehicle.
Dealer Program Responsibility
All unsold new vehicles in dealers'/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through April 30, 2011.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for
your use in contacting customers. Program follow-up cards should not be used for this purpose,
since the customer may not as yet have received the notification letter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > Recalls: > 10037 > Apr > 10 >
Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14552
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through April 30, 2011, you must take the steps necessary to be sure
the program correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Service Procedure
Note Do NOT replace the inside rear view mirror in tandem with this concern. The mirror has no
bearing on this specific issue.
1. Remove the OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module (VCIM)
in SI). Refer to SI for module removal instructions.
Note Inform customer that all Bluetooth devices must be paired with the new VCIM. Bluetooth
devices that have not been paired to the new VCIM will not function properly.
2. Install the new OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module
(VCIM) in SI). Refer to SI for module installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R)
Technical Service Bulletin # 10037 Date: 100420
Campaign - Unwanted Repeat Calls to OnStar(R)
CUSTOMER SATISFACTION
Bulletin No.: 10037
Date: April 20, 2010
Subject: 10037 - Unwanted Repeat Calls to OnStar(R)
Models:
2003 Buick LeSabre 2004-2006 Buick Rendezvous 2005 Buick LeSabre, Terraza 2005-2006 Buick
LaCrosse/Allure 2006-2008 Buick Lucerne 2008 Buick LaCrosse/Allure 2008-2009 Buick Enclave
2003 Cadillac CTS 2004 Cadillac Escalade 2004-2005 Cadillac CTS-V, Deville 2005 Cadillac
Escalade ESV, SRX 2005-2006 Cadillac STS 2005-2008 Cadillac CTS 2006-2008 Cadillac DTS
2007 Cadillac Escalade, Escalade EXT 2007-2008 Cadillac Escalade ESV 2008 Cadillac SRX,
STS 2002 Chevrolet Impala 2003-2008 Chevrolet Suburban 2003-2009 Chevrolet Silverado
2004-2008 Chevrolet Impala 2005 Chevrolet Colorado, Corvette, Malibu 2005-2006 Chevrolet
Uplander 2005-2008 Chevrolet Avalanche, Tahoe, TrailBlazer 2006 Chevrolet HHR, Monte Carlo
2006-2008 Chevrolet Equinox 2007-2008 Chevrolet Corvette 2008 Chevrolet HHR 2008-2009
Chevrolet Cobalt, Colorado, Malibu, Uplander 2003 GMC Envoy XL, Sierra, Yukon XL 2004-2008
GMC Yukon 2005-2009 GMC Sierra 2005-2008 GMC Yukon XL 2006-2008 GMC Envoy 2007
GMC Canyon 2007-2009 GMC Acadia 2006 HUMMER H2 2006-2008 HUMMER H3 2008
HUMMER H2 2003 Oldsmobile Silhouette 2005 Montana SV6 2005-2008 Pontiac Grand Prix 2006
Pontiac G6, Vibe 2007 Pontiac Montana SV6 2007-2008 Pontiac Solstice 2008 Pontiac G6, Torrent
2008-2009 Pontiac G5, G8 2009 Pontiac G3, Montana SV6 2005-2007 Saturn ION
2006-2009Saturn VUE 2007-2008 Saturn AURA, OUTLOOK, SKY Equipped with OnStar(R) (RPO
UE1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14558
THIS PROGRAM IS IN EFFECT UNTIL APRIL 30, 2011.
Condition
Certain 2002-2009 model year vehicles equipped with OnStar(R) may have a condition in which
the vehicle's OnStar(R) system repeatedly makes incomplete calls to OnStar(R) without the
vehicle's occupant(s) input or knowledge. Customer initiated Blue Button call, Emergency calls,
and Automatic Crash Notification calls will also fail to establish a data connection with the
OnStar(R) Call Center. Eventually, the customer's call will connect as a voice only line and the
customer will be able to talk with an OnStar(R) advisor; however, the advisor will not get crucial
customer data such as vehicle identification and location.
Correction
Dealers/retailers are to replace the OnStar(R) module (VCIM).
Vehicles Involved
Involved are certain 2002-2009 model year vehicles equipped with OnStar(R), and built within
these VIN breakpoints:
Note:
Some model years/models have only one vehicle involved.
Important Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using
GMVIS (dealers/retailers using WINS) or the Investigate Vehicle History link (dealers/retailers using
GWM). Not all vehicles within the above breakpoints may be involved.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided to dealers/retailers through the GM GlobalConnect Recall Reports. Dealers/retailers
will not have a report available if they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this program is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
program.
Parts Information
US: OnStar(R) modules required for this program are to be obtained by contacting Autocraft
Electronics via the web at www.autocraft.com, and selecting the catalog item that contains bulletin
number 10037 (or PIC 4893B), or by calling 1-800-336-3998. Dealer must provide the VIN, R.O.
number, and the current vehicle mileage.
Canada: OnStar(R) modules required for this program are to be obtained by contacting MASS
Electronics at 1-877-410-6277. Dealer must provide the VIN, R.O. number, and the current vehicle
mileage.
DO NOT ORDER ONSTAR(R) MODULES FROM GENERAL MOTORS CUSTOMER CARE AND
AFTERSALES (GMCC&A;), SATURN SERVICE PARTS OPERATION (SSPO), OR THE
TECHNICAL ASSISTANCE CENTER (TAC).
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
1. Submit a claim using the table below.
2. Courtesy Transportation - For dealers/retailers using WINS, submit using normal labor code; for
dealers/retailers using GWM - submit as Net Item under the repair labor code.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14559
* Dealers using WINs: Add 0.2 hours to the labor time for administrative allowance for the module
exchange.
Dealers using GWM: Submit 0.2 hours administrative allowance under "Administration Time" for
the module exchange.
** The $25 represents the additional net amount allowed for the module exchange.
*** Dealers are to claim only administrative allowance of 0.2 hours when the module is replaced by
Masscomp's Mobile Unit. Dealers using WINS should submit the 0.2 hours administrative
allowance in labor time. Dealer using GWM should submit the 0.2 hours administrative allowance
under Administrative Time.
Customer Notification
OnStar will notify customers of this program on their vehicle.
Dealer Program Responsibility
All unsold new vehicles in dealers'/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through April 30, 2011.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for
your use in contacting customers. Program follow-up cards should not be used for this purpose,
since the customer may not as yet have received the notification letter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14560
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through April 30, 2011, you must take the steps necessary to be sure
the program correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Service Procedure
Note Do NOT replace the inside rear view mirror in tandem with this concern. The mirror has no
bearing on this specific issue.
1. Remove the OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module (VCIM)
in SI). Refer to SI for module removal instructions.
Note Inform customer that all Bluetooth devices must be paired with the new VCIM. Bluetooth
devices that have not been paired to the new VCIM will not function properly.
2. Install the new OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module
(VCIM) in SI). Refer to SI for module installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing Impaired
Communications Control Module: All Technical Service Bulletins OnStar(R) - Availability for
Hearing Impaired
INFORMATION
Bulletin No.: 06-08-46-005B
Date: February 11, 2010
Subject: Availability of OnStar(R) for Hearing Impaired
Models:
2007-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn and Saab) Except 2007
Cadillac CTS Except 2007-2008 HUMMER H2, H2 SUT Except 2007 Pontiac Montana SV6 Except
2007-2010 Pontiac Vibe Except 2007 Saturn ION, VUE Except 2008 Saturn Astra
Supercede: This bulletin is being revised to add a Note regarding 2009 Bluetooth(R)-equipped
vehicles, additional models and model years. Please discard Corporate Bulletin Number
06-08-46-005A (Section 08 - Body and Accessories).
Important This service bulletin is not applicable to 'GM of Canada' dealers and retailers.
Note
On 2009 and newer model year vehicles equipped with the Bluetooth(R) feature (option code
UPF), when up-fitted with TTY capabilities, the Bluetooth(R) feature will be disabled.
OnStar with Text Telephone Capability (TTY)
General Motors is pleased to announce that the safety and security of OnStar is now available to
our deaf, hard of hearing and speech impaired customers. The current vehicles listed above, as
well as forthcoming vehicles equipped with OnStar hardware version 7.0 or higher, have the ability
to utilize texting telephones. Vehicle specific TTY capability can be determined by utilizing the VIN
lookup Tool. Additional information may be found by referring to www.onstar.com/tty.
TTY equipment allows people who are deaf, hard of hearing or speech impaired, in-vehicle access
to 911 and basic OnStar(R) services by pressing the OnStar(R) blue button or red emergency
button. The keypad provides a means to communicate by allowing customers to type messages
back and forth, with an OnStar(R) advisor or other party when using the OnStar(R) Hands-Free
Calling feature. A TTY is required at both ends of the conversation in order to communicate.
OnStar(R) Turn by Turn Navigation and Virtual Advisor are not available with the addition of TTY.
The Reimbursement Program
This equipment will be made available to eligible customers through GM Mobility and OnStar(R).
Under this program, the customer must complete a GM Mobility application form. To take
advantage of the program, vehicles must be adapted at the time of delivery for purchase / lease
and a dealer claim ($1,000 Maximum per GM Mobility guidelines) with the application form
submitted to GM Mobility. Saab dealers must fax documents. GM Dealers will receive electronic
reimbursement directly from GM Mobility. Saab dealers will receive a check directly from
OnStar(R). Additional questions or concerns should be directed to the OnStar Dealer Center.
How to Order
To order the dealer installed kit, contact AutoCraft Electronics or via the web at www.autocraft.com.
The kit consists of an OnStar Interface Module, a Dial Pad (for making calls), OTIM wiring harness,
the TTY device, installation/Tech 2(R) programming instructions and owner's guide.
Warranty Information
The Ultra-Tec Compact C TTY device is manufactured by an independent manufacturer and is
covered by the manufacturer's warranty. It is not covered under the GM New Vehicle Limited
Warranty. All other parts (OTIM, dial pad and OTIM wiring harness) are covered by the standard
GM new vehicle parts and labor warranty. Replacement parts are available through AutoCraft
Electronics. Contact AutoCraft Electronics or via the web.
Warranty claims for the OTIM, dial pad and OTIM wiring harness should be submitted through
normal warranty procedures using a sublet warranty claim with GM Labor Operation R5140.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing Impaired > Page
14565
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing Impaired
Communications Control Module: All Technical Service Bulletins OnStar(R) - Availability for
Hearing Impaired
INFORMATION
Bulletin No.: 06-08-46-005B
Date: February 11, 2010
Subject: Availability of OnStar(R) for Hearing Impaired
Models:
2007-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn and Saab) Except 2007
Cadillac CTS Except 2007-2008 HUMMER H2, H2 SUT Except 2007 Pontiac Montana SV6 Except
2007-2010 Pontiac Vibe Except 2007 Saturn ION, VUE Except 2008 Saturn Astra
Supercede: This bulletin is being revised to add a Note regarding 2009 Bluetooth(R)-equipped
vehicles, additional models and model years. Please discard Corporate Bulletin Number
06-08-46-005A (Section 08 - Body and Accessories).
Important This service bulletin is not applicable to 'GM of Canada' dealers and retailers.
Note
On 2009 and newer model year vehicles equipped with the Bluetooth(R) feature (option code
UPF), when up-fitted with TTY capabilities, the Bluetooth(R) feature will be disabled.
OnStar with Text Telephone Capability (TTY)
General Motors is pleased to announce that the safety and security of OnStar is now available to
our deaf, hard of hearing and speech impaired customers. The current vehicles listed above, as
well as forthcoming vehicles equipped with OnStar hardware version 7.0 or higher, have the ability
to utilize texting telephones. Vehicle specific TTY capability can be determined by utilizing the VIN
lookup Tool. Additional information may be found by referring to www.onstar.com/tty.
TTY equipment allows people who are deaf, hard of hearing or speech impaired, in-vehicle access
to 911 and basic OnStar(R) services by pressing the OnStar(R) blue button or red emergency
button. The keypad provides a means to communicate by allowing customers to type messages
back and forth, with an OnStar(R) advisor or other party when using the OnStar(R) Hands-Free
Calling feature. A TTY is required at both ends of the conversation in order to communicate.
OnStar(R) Turn by Turn Navigation and Virtual Advisor are not available with the addition of TTY.
The Reimbursement Program
This equipment will be made available to eligible customers through GM Mobility and OnStar(R).
Under this program, the customer must complete a GM Mobility application form. To take
advantage of the program, vehicles must be adapted at the time of delivery for purchase / lease
and a dealer claim ($1,000 Maximum per GM Mobility guidelines) with the application form
submitted to GM Mobility. Saab dealers must fax documents. GM Dealers will receive electronic
reimbursement directly from GM Mobility. Saab dealers will receive a check directly from
OnStar(R). Additional questions or concerns should be directed to the OnStar Dealer Center.
How to Order
To order the dealer installed kit, contact AutoCraft Electronics or via the web at www.autocraft.com.
The kit consists of an OnStar Interface Module, a Dial Pad (for making calls), OTIM wiring harness,
the TTY device, installation/Tech 2(R) programming instructions and owner's guide.
Warranty Information
The Ultra-Tec Compact C TTY device is manufactured by an independent manufacturer and is
covered by the manufacturer's warranty. It is not covered under the GM New Vehicle Limited
Warranty. All other parts (OTIM, dial pad and OTIM wiring harness) are covered by the standard
GM new vehicle parts and labor warranty. Replacement parts are available through AutoCraft
Electronics. Contact AutoCraft Electronics or via the web.
Warranty claims for the OTIM, dial pad and OTIM wiring harness should be submitted through
normal warranty procedures using a sublet warranty claim with GM Labor Operation R5140.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Cellular Phone > Communications Control Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Communications Control Module: >
06-08-52-002G > Nov > 08 > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing Impaired > Page
14571
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Central Control Module > Component Information >
Locations
Central Control Module: Locations
Entertainment/Communication Component Views
Behind the I/P Cluster
1 - Instrument Panel cluster (IPC) 2 - I/P Trim 3 - Vehicle communication Interface Module (VCIM)
(UE1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Central Control Module > Component Information >
Service and Repair > Communication Interface Module Battery Replacement
Central Control Module: Service and Repair Communication Interface Module Battery Replacement
Communication Interface Module Battery Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Central Control Module > Component Information >
Service and Repair > Communication Interface Module Battery Replacement > Page 14577
Central Control Module: Service and Repair Communication Interface Module Replacement
Communication Interface Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Driver/Vehicle Information Display > Component
Information > Locations
Driver/Vehicle Information Display: Locations
Displays and Gages Component Views
Instrument Panel
1 - Ambient Light Sensor 2 - Instrument Panel Cluster (IPC) 3 - Driver Information Center (DIC)
Switch 4 - Hazard Switch 5 - Inflatable Restraint Passenger Air Bag ON/OFF Indicator 6 - Rear
Wiper/Washer Switch 7 - Radio 8 - HVAC Control Module 9 - Heated Seat Switches 10 - Power
Window Switch - Main
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Driver/Vehicle Information Display > Component
Information > Locations > Page 14581
11 - Traction Control Switch 12 - Dimmer Switch 13 - Outside Rear View Mirror Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Driver/Vehicle Information Display > Component
Information > Locations > Page 14582
Driver/Vehicle Information Display: Diagrams
Displays and Gages Connector End Views
Driver Information Center (DIC) Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Driver/Vehicle Information Display > Component
Information > Locations > Page 14583
Driver/Vehicle Information Display: Service and Repair
Driver Information Display Switch Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > Customer Interest: > 05-08-46-004C > Dec > 10 > OnStar(R) - Number
Incorrect/Incorrectly Assigned
Emergency Contact Module: Customer Interest OnStar(R) - Number Incorrect/Incorrectly Assigned
INFORMATION
Bulletin No.: 05-08-46-004C
Date: December 23, 2010
Subject: OnStar(R) Phone Number Concerns (Phone Number Incorrect/Assigned to Another
Vehicle/Phone) That Occur During Diagnosis of OnStar(R) System
Models:
2000-2011 GM Passenger Cars and Trucks Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update model years up to 2011. Please discard
Corporate Bulletin Number 05-08-46-004B (Section 08 - Body and Accessories).
During diagnosis of an OnStar(R) concern, the technician may be told that the OnStar(R) phone
number is incorrect or tied to another vehicle and/or phone of some kind. To resolve these
concerns, the Tech 2(R) with software version 22.005 (or higher), has the capability to change the
OnStar(R) phone number.
Service Procedure
1. With the Tech 2(R), build the vehicle to specifications within the Diagnostics area of the Tech
2(R). 2. For vehicles with physical-based diagnostics - under Body, go to the OnStar(R) section.
Then select the Special Functions menu.
For vehicles with functional-based diagnostics - under Body and Accessories, go to the Cellular
Communication section. Select Module Setup and then Vehicle Communication Interface Module.
3. Locate the Program Phone Number prompt and select it. The original phone number will be
displayed on the Tech 2(R) screen. 4. Contact the OnStar(R) team at the GM Technical Assistance
Center (TAC) to obtain a new phone number. 5. Highlight the digits of the phone number one at a
time and enter the new phone number using the number keys on the Tech 2(R). 6. Press the Soft
key at the base of the screen for Done once these numbers have been changed on the screen. 7.
Press the Soft key for Done again. The area code or new phone number has now been
programmed into the phone. 8. Cycle the ignition to Off and open the driver's door. 9. Press the
blue OnStar(R) button to make sure that a normal connection can be made to the OnStar(R) call
center. If applicable, make sure the
Hands-Free Calling (HFC) works properly by making a phone call.
10. If the system is working properly, fax or voicemail a case closing into the OnStar(R) team at
TAC with the results. Dealers in Canada should
submit case closing information through the GM infoNET.
Please follow this diagnostic process thoroughly and complete each step. If the condition exhibited
is resolved WITHOUT completing every step, the remaining steps do not need to be performed. If
the procedure above does not resolve the condition, you must contact TAC for further assistance.
This diagnostic approach was developed specifically for this condition and should not automatically
be used for other vehicles with similar symptoms.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > Customer Interest: > 05-08-46-004C > Dec > 10 > OnStar(R) - Number
Incorrect/Incorrectly Assigned > Page 14592
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > Customer Interest: > 02-08-46-006C > Jan > 08 > OnStar(R) - Incorrect GPS
Position Reported During Call
Emergency Contact Module: Customer Interest OnStar(R) - Incorrect GPS Position Reported
During Call
Bulletin No.: 02-08-46-006C
Date: January 08, 2008
INFORMATION
Subject: Incorrect OnStar(R) Global Positioning System (GPS) Location Reported During
OnStar(R) Call
Models: 2000-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R)
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
02-08-46-006B (Section 08 - Body and Accessories).
A small number of the above-mentioned vehicles may exhibit a condition in which the vehicle
reports an inaccurate location to the OnStar(R) Call Center. This condition can only be identified
via a button press to the OnStar(R) Call Center by the customer. Call Center personnel will be able
to identify this inaccurate location condition. Customers will then be notified through the mail by
OnStar(R) if their vehicle exhibits this condition. Once this condition has been identified OnStar(R)
will instruct the customer to return to the dealership to have this condition corrected.
It is not necessary to reconfigure the vehicle after the following procedure.
In order to correct this condition you must cycle power to the OnStar(R) system. This can be done
by either removing the fuses powering the OnStar(R) system or disconnecting the OnStar(R)
module (VCIM) from the vehicle. As a last resort you can disconnect the vehicle's battery.
The power needs to be removed from the system for approximately 15 minutes.
After completing this procedure the vehicle should be taken to an area with an unobstructed view of
the sky. The vehicle should be kept running for approximately 10 minutes to allow the vehicle to
reacquire the global positioning system (GPS). Then contact the OnStar(R) Call Center via the blue
OnStar(R) button and ask the advisor to verify the GPS position.
If the OnStar(R) advisor still has an inaccurate GPS location refer to the Navigation Systems and
Cellular Communications sub-sections in the Service Manual in order to diagnose and repair the
concern. If the normal diagnostics lead to module replacement you will need to contact Technical
Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in the
diagnosis and if appropriate order a replacement part. Replacement parts are usually shipped out
within 24 hours and a pre-paid return package label will be included for returning the faulty part. By
returning the faulty part you will avoid a significant non-return core charge.
Warranty Information (excluding Saab US Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab US Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > Customer Interest: > 02-08-46-006C > Jan > 08 > OnStar(R) - Incorrect GPS
Position Reported During Call > Page 14597
For vehicles repaired under warranty use, the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > Customer Interest: > 02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS
Signal/Hands Free Issues
Emergency Contact Module: Customer Interest OnStar(R) - Loss of GPS Signal/Hands Free Issues
Bulletin No.: 02-08-46-007C
Date: November 19, 2007
INFORMATION
Subject: Information on OnStar(R) System - Possible Loss of GPS Signal, Hands-Free Calling
Minutes Expire Prematurely and/or Inability to Add Hands-Free Calling Minutes
Models: 2001-2008 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R) System (RPO UE1)
Supercede:
This bulletin is being revised to add the 2008 model year, warranty information and to provide GPS
signal recovery steps (under Dealer Action heading) to do PRIOR to determining if the VIU/VCIM
needs replacement. Please discard Corporate Bulletin Number 02-08-46-007B (Section 08 - Body
& Accessories).
If the vehicle currently has analog-upgradable OnStar(R) hardware, then the customer should be
made aware of the digital upgrade program per the latest version of Service Bulletin #
05-08-46-006. Any analog OnStar system that is not upgraded prior to the end of 2007 will be
deactivated due to the upcoming phase-out of the analog cellular network in the U.S. and Canada.
If the vehicle has recently been upgraded or has had a service replacement unit installed, this
bulletin may not be applicable.
Certain 2001-2008 model year vehicles equipped with OnStar(R) may exhibit a condition with the
Global Positioning System (GPS) that causes inaccuracies in the GPS clock. The GPS system is
internal to the OnStar(R) Vehicle Interface Unit (VIU) or the Vehicle Communication Interface
Module (VCIM). This inaccuracy can result in a symptom where the OnStar(R) Call Center is
unable to obtain an accurate GPS signal, hands-Free Calling minutes expire prematurely and/or
the inability to add Hands-Free calling minutes.
Customer Notification
OnStar(R) will notify the customer by mail with instructions to contact their dealership service
department.
Dealer Action
Not all vehicles will require VIU/VCIM replacement.
The GPS signal in some vehicles may be recoverable. To determine if the signal is recoverable,
simply connect the Tech2(R) and using the GPS information data display option, observe the GPS
date and time. If the date/time stamps are equal to a date approximately 19 years in the future, the
GPS clock has exceeded its capacity and the VIU/VCIM will need to be replaced. If the date/time
stamp is in the past or near future, the GPS clock has simply generated an inaccurate value and
may be recoverable by performing the following power-up reset.
To initiate a power-up reset, battery voltage (batt. +) must be removed from the VIU/VCIM. The
preferred methods, in order, of initiating the reset are outlined below.
Remove the fuse that supplies Battery positive (Batt. +) voltage to the module (refer to the
applicable Service Information schematics for the appropriate fuse).
The next preferred method is to remove the connector to the OnStar(R) unit that Batt + is
contained.
The least preferable method is to remove the negative terminal of the vehicle battery. This will not
only initiate the power-up reset, but it may also result in the loss of radio presets and other stored
personalization information/settings in other modules as well.
After initiating the power-up reset, the GPS data will be set to the defaulted date and time and will
require an acquisition of the GPS signal in order to gain the proper date and time.
Acquiring the GPS signal requires running the vehicle in an open/unobstructed view of the sky.
First, contact OnStar(R) Technical Support by pressing the blue button. Allow the OnStar(R)
Technical Advisor to activate the GPS recovery process. This should take approximately 10
minutes. Continue to
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > Customer Interest: > 02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS
Signal/Hands Free Issues > Page 14602
monitor the Tech2(R) for the current time and date. REMINDER - Keep in mind that the time
displayed on the Tech2(R) is in Greenwich Mean Time (GMT) and the offset is based on the time
zones relationship to GMT.
If replacement of the VIU/VCIM is necessary, you MUST reconfigure the OnStar® system. Failure
to reconfigure the system will result in an additional customer visit for repair. OnStar® VIU,
Generations 2 and 3, will require the technician to press the blue OnStar® button to reconfigure the
vehicle with an OnStar® advisor.
OnStar(R) VCIM, Generations 4-7 will require the technician to reconfigure the vehicle with the use
of the TIS2WEB and SPS applications (pass thru only), along with the Tech2(R).
The configuration and set-up procedure is a two-step process that must be completed step-by-step
without interruption or delay in between each step. This procedure enables an automated activation
without a button press by the technician to the OnStar(R) Call Center. Following this procedure, it
may take up to 24 hours for all OnStar(R) services to be fully activated.
How to Order Parts
If the OnStar(R) GPS date/time stamp is non-recoverable and the unit needs to be replaced,
dealers in the U.S. should contact Autocraft Electronics select the catalog item that contains this
bulletin number. Canadian dealers should contact MASS Electronics.
Dealers DO NOT need to call the GM Technical Assistance Center (TAC) for replacement
approval. Autocraft Electronics and MASS Electronics will be responsible for verifying that the
subject vehicle is a candidate for a replacement VIU/VCIM.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > Customer Interest: > 02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS
Signal/Hands Free Issues > Page 14603
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 05-08-46-004C
> Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Number
Incorrect/Incorrectly Assigned
INFORMATION
Bulletin No.: 05-08-46-004C
Date: December 23, 2010
Subject: OnStar(R) Phone Number Concerns (Phone Number Incorrect/Assigned to Another
Vehicle/Phone) That Occur During Diagnosis of OnStar(R) System
Models:
2000-2011 GM Passenger Cars and Trucks Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update model years up to 2011. Please discard
Corporate Bulletin Number 05-08-46-004B (Section 08 - Body and Accessories).
During diagnosis of an OnStar(R) concern, the technician may be told that the OnStar(R) phone
number is incorrect or tied to another vehicle and/or phone of some kind. To resolve these
concerns, the Tech 2(R) with software version 22.005 (or higher), has the capability to change the
OnStar(R) phone number.
Service Procedure
1. With the Tech 2(R), build the vehicle to specifications within the Diagnostics area of the Tech
2(R). 2. For vehicles with physical-based diagnostics - under Body, go to the OnStar(R) section.
Then select the Special Functions menu.
For vehicles with functional-based diagnostics - under Body and Accessories, go to the Cellular
Communication section. Select Module Setup and then Vehicle Communication Interface Module.
3. Locate the Program Phone Number prompt and select it. The original phone number will be
displayed on the Tech 2(R) screen. 4. Contact the OnStar(R) team at the GM Technical Assistance
Center (TAC) to obtain a new phone number. 5. Highlight the digits of the phone number one at a
time and enter the new phone number using the number keys on the Tech 2(R). 6. Press the Soft
key at the base of the screen for Done once these numbers have been changed on the screen. 7.
Press the Soft key for Done again. The area code or new phone number has now been
programmed into the phone. 8. Cycle the ignition to Off and open the driver's door. 9. Press the
blue OnStar(R) button to make sure that a normal connection can be made to the OnStar(R) call
center. If applicable, make sure the
Hands-Free Calling (HFC) works properly by making a phone call.
10. If the system is working properly, fax or voicemail a case closing into the OnStar(R) team at
TAC with the results. Dealers in Canada should
submit case closing information through the GM infoNET.
Please follow this diagnostic process thoroughly and complete each step. If the condition exhibited
is resolved WITHOUT completing every step, the remaining steps do not need to be performed. If
the procedure above does not resolve the condition, you must contact TAC for further assistance.
This diagnostic approach was developed specifically for this condition and should not automatically
be used for other vehicles with similar symptoms.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 05-08-46-004C
> Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned > Page 14609
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 02-08-44-007D
> May > 09 > OnStar(R) - Negative Impact of Cloth/Vinyl Roofs
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Negative Impact of
Cloth/Vinyl Roofs
INFORMATION
Bulletin No.: 02-08-44-007D
Date: May 12, 2009
Subject: Negative Impact of Dealer-Installed Cloth/Vinyl Roofs on XM Radio and/or OnStar(R)
Systems
Models:
2002-2009 Passenger Cars and Trucks (Including Saturn) 2003-2009 HUMMER H2 2006-2009
HUMMER H3 2005-2009 Saab 9-7X with XM Radio (RPO U2K) and/or OnStar(R) (RPO UE1)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
include the 2009 model year. Please discard Corporate Bulletin Number 02-08-44-007C (Section
08 - Body and Accessories).
..............................................................................................................................................................
..................................................................................
Dealers should not install a cloth or vinyl roof on vehicles that have been ordered with the XM radio
option (RPO U2K) and/or OnStar(R) (RPO UE1). The performance of these systems may be
negatively impacted by the installation of the cloth/vinyl roof. Additionally, water leaks may result
from installing a cloth or vinyl roof on vehicles with roof-mounted antenna systems. Relocating the
antenna to another spot on the vehicle exterior, in order to install a cloth or vinyl roof, is not advised
either. The performance of the OnStar(R) and XM Radio antennas has been optimized for their
current locations. Relocating the antennas may result in a performance degradation.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 06-08-46-008C
> Sep > 08 > OnStar(R) - Analog/Digital System Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Analog/Digital System
Information
INFORMATION
Bulletin No.: 06-08-46-008C
Date: September 18, 2008
Subject: Information on OnStar(R) Dual-Mode (Analog/Digital) Systems
Models
Supercede:
This bulletin is being revised to correct the model year range for the Chevrolet Impala and Monte
Carlo and update the reference to GM Dealerworld. Please discard Corporate Bulletin Number
06-08-46-008B (Section 08 - Body and Accessories).
All 2000-2003 model year vehicles equipped with OnStar® from the list above were built with
Analog/Digital-Ready OnStar(R) Hardware. Some of these vehicles may have been upgraded to
Dual-Mode (Analog/Digital).
Certain 2004-2005 model year vehicles equipped with OnStar(R) from the list above may have
been either:
^ Originally built at the factory with Dual-Mode (Analog/Digital) OnStar(R) Hardware with
Dual-Mode (Analog/Digital) OnStar(R) Hardware
OR
^ Upgraded to Dual-Mode (Analog/Digital) Hardware
All 2006 model year and newer vehicles equipped with OnStar(R) were built at the factory with
Dual-Mode (Analog/Digital) OnStar(R) Hardware.
If a vehicle has Dual-Mode (Analog/Digital) OnStar(R) Hardware, then the system is capable of
operating on both the analog and digital cellular
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 06-08-46-008C
> Sep > 08 > OnStar(R) - Analog/Digital System Information > Page 14618
networks, and will not require an upgrade in connection with the cellular industry's transition to the
digital network.
In order to verify the type of OnStar(R) Hardware in a vehicle, type the VIN into the VIN look-up
tool, which is available at the OnStar(R) Online Enrollment website within GM GlobalConnect (for
U.S. dealers) or InfoNet (for Canadian dealers).
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 08-08-46-004
> Aug > 08 > OnStar(R) - Aftermarket Device Interference Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Aftermarket Device
Interference Information
INFORMATION
Bulletin No.: 08-08-46-004
Date: August 14, 2008
Subject: Information on Aftermarket Device Interference with OnStar(R) Diagnostic Services
Models: 2009 and Prior GM Passenger Car and Truck (including Saturn) 2009 and Prior HUMMER
H2, H3 Models 2009 and Prior Saab 9-7X
with OnStar(R) (RPO UE1)
This bulletin is being issued to provide dealer service personnel with information regarding
aftermarket devices connected to the Diagnostic Link Connector (DLC) and the impact to
OnStar(R) diagnostic probes and Vehicle Diagnostic e-mails.
Certain aftermarket devices, when connected to the Diagnostic Link Connector, such as, but not
limited to, Scan Tools, Trip Computers, Fuel Economy Analyzers and Insurance Tracking Devices,
interfere with OnStar's ability to perform a diagnostic probe when requested (via a blue button call)
by a subscriber. These devices also prohibit the ability to gather diagnostic and tire pressure data
for a subscriber's scheduled OnStar(R) Vehicle Diagnostic (OVD) e-mail.
These aftermarket devices utilize the Vehicles serial data bus to perform data requests and/or
information gathering. When these devices are requesting data, OnStar(R) is designed not to
interfere with any data request being made by these devices as required by OBD II regulations.
The OnStar(R) advisor is unable to definitively detect the presence of these devices and will only
be able to inform the caller or requester of the unsuccessful or incomplete probe and may in some
cases refer the subscriber/requester to take the vehicle to a dealer for diagnosis of the concern.
When performing a diagnostic check for an unsuccessful or incomplete OnStar(R) diagnostic
probe, or for concerns regarding completeness of the OnStar(R) Vehicle Diagnostic (OVD) e-mail,
verify that an aftermarket device was not present at the time of the requested probe. Regarding the
OVD e-mail, if an aftermarket device is interfering (including a Scan Tool of any type), the e-mail
will consistently display a "yellow" indication in diagnostics section for all vehicle systems except
the OnStar(R) System and Tire Pressure data (not available on all vehicles) will not be displayed
(i.e. section is collapsed). Successful diagnostic probes and complete OVD e-mails will resume
following the removal or disconnecting of the off-board device.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 00-08-46-004C
> Jan > 08 > OnStar(R) - Re-establishing OnStar(R) Communications
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Re-establishing OnStar(R)
Communications
Bulletin No.: 00-08-46-004C
Date: January 17, 2008
INFORMATION
Subject: Re-establishing Communications with OnStar(R) Center After Battery Disconnect
Models: 2000-2008 GM Passenger Cars and Trucks (Including Saturn and Saab)
with Digital OnStar(R) (RPO UE1)
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 00-08-46-004B (Section 08 - Body and Accessories).
When servicing any of the above models and a battery cable is disconnected or power to the
OnStar(R) Vehicle Communication Interface Module (VCIM) is interrupted for any reason the
following procedure must be performed to verify proper Global Positioning System (GPS) function.
Never swap OnStar(R) Vehicle Communication Interface Modules (VCIM) from other vehicles.
Transfer of OnStar(R) modules from other vehicles should not be done. Each OnStar(R) module
has a unique identification number. The VCIM has a specific Station Identification (STID). This
identification number is used by the National Cellular Telephone Network and OnStar(R) systems
and is stored in General Motors Vehicle History files by VIN.
After completing ALL repairs to the vehicle you must perform the following procedure:
Move the vehicle into an open area of the service lot.
Sit in the vehicle with the engine running and the radio turned on for five minutes.
Press the OnStar(R) button in the vehicle.
When the OnStar(R) advisor answers ask the advisor to verify the current location of the vehicle.
If the vehicle location is different than the location the OnStar(R) advisor gives contact GM
Technical Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in
the diagnosis of a failed VCIM and, if appropriate, order a replacement part. Replacement parts are
usually shipped out within 24 hours, and a pre-paid return package label will be included for
returning the faulty part. By returning the faulty part, you will avoid a non-return core charge.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 02-08-46-006C
> Jan > 08 > OnStar(R) - Incorrect GPS Position Reported During Call
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Incorrect GPS Position
Reported During Call
Bulletin No.: 02-08-46-006C
Date: January 08, 2008
INFORMATION
Subject: Incorrect OnStar(R) Global Positioning System (GPS) Location Reported During
OnStar(R) Call
Models: 2000-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R)
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
02-08-46-006B (Section 08 - Body and Accessories).
A small number of the above-mentioned vehicles may exhibit a condition in which the vehicle
reports an inaccurate location to the OnStar(R) Call Center. This condition can only be identified
via a button press to the OnStar(R) Call Center by the customer. Call Center personnel will be able
to identify this inaccurate location condition. Customers will then be notified through the mail by
OnStar(R) if their vehicle exhibits this condition. Once this condition has been identified OnStar(R)
will instruct the customer to return to the dealership to have this condition corrected.
It is not necessary to reconfigure the vehicle after the following procedure.
In order to correct this condition you must cycle power to the OnStar(R) system. This can be done
by either removing the fuses powering the OnStar(R) system or disconnecting the OnStar(R)
module (VCIM) from the vehicle. As a last resort you can disconnect the vehicle's battery.
The power needs to be removed from the system for approximately 15 minutes.
After completing this procedure the vehicle should be taken to an area with an unobstructed view of
the sky. The vehicle should be kept running for approximately 10 minutes to allow the vehicle to
reacquire the global positioning system (GPS). Then contact the OnStar(R) Call Center via the blue
OnStar(R) button and ask the advisor to verify the GPS position.
If the OnStar(R) advisor still has an inaccurate GPS location refer to the Navigation Systems and
Cellular Communications sub-sections in the Service Manual in order to diagnose and repair the
concern. If the normal diagnostics lead to module replacement you will need to contact Technical
Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in the
diagnosis and if appropriate order a replacement part. Replacement parts are usually shipped out
within 24 hours and a pre-paid return package label will be included for returning the faulty part. By
returning the faulty part you will avoid a significant non-return core charge.
Warranty Information (excluding Saab US Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab US Models)
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 02-08-46-006C
> Jan > 08 > OnStar(R) - Incorrect GPS Position Reported During Call > Page 14631
For vehicles repaired under warranty use, the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 02-08-46-007C
> Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Loss of GPS Signal/Hands
Free Issues
Bulletin No.: 02-08-46-007C
Date: November 19, 2007
INFORMATION
Subject: Information on OnStar(R) System - Possible Loss of GPS Signal, Hands-Free Calling
Minutes Expire Prematurely and/or Inability to Add Hands-Free Calling Minutes
Models: 2001-2008 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R) System (RPO UE1)
Supercede:
This bulletin is being revised to add the 2008 model year, warranty information and to provide GPS
signal recovery steps (under Dealer Action heading) to do PRIOR to determining if the VIU/VCIM
needs replacement. Please discard Corporate Bulletin Number 02-08-46-007B (Section 08 - Body
& Accessories).
If the vehicle currently has analog-upgradable OnStar(R) hardware, then the customer should be
made aware of the digital upgrade program per the latest version of Service Bulletin #
05-08-46-006. Any analog OnStar system that is not upgraded prior to the end of 2007 will be
deactivated due to the upcoming phase-out of the analog cellular network in the U.S. and Canada.
If the vehicle has recently been upgraded or has had a service replacement unit installed, this
bulletin may not be applicable.
Certain 2001-2008 model year vehicles equipped with OnStar(R) may exhibit a condition with the
Global Positioning System (GPS) that causes inaccuracies in the GPS clock. The GPS system is
internal to the OnStar(R) Vehicle Interface Unit (VIU) or the Vehicle Communication Interface
Module (VCIM). This inaccuracy can result in a symptom where the OnStar(R) Call Center is
unable to obtain an accurate GPS signal, hands-Free Calling minutes expire prematurely and/or
the inability to add Hands-Free calling minutes.
Customer Notification
OnStar(R) will notify the customer by mail with instructions to contact their dealership service
department.
Dealer Action
Not all vehicles will require VIU/VCIM replacement.
The GPS signal in some vehicles may be recoverable. To determine if the signal is recoverable,
simply connect the Tech2(R) and using the GPS information data display option, observe the GPS
date and time. If the date/time stamps are equal to a date approximately 19 years in the future, the
GPS clock has exceeded its capacity and the VIU/VCIM will need to be replaced. If the date/time
stamp is in the past or near future, the GPS clock has simply generated an inaccurate value and
may be recoverable by performing the following power-up reset.
To initiate a power-up reset, battery voltage (batt. +) must be removed from the VIU/VCIM. The
preferred methods, in order, of initiating the reset are outlined below.
Remove the fuse that supplies Battery positive (Batt. +) voltage to the module (refer to the
applicable Service Information schematics for the appropriate fuse).
The next preferred method is to remove the connector to the OnStar(R) unit that Batt + is
contained.
The least preferable method is to remove the negative terminal of the vehicle battery. This will not
only initiate the power-up reset, but it may also result in the loss of radio presets and other stored
personalization information/settings in other modules as well.
After initiating the power-up reset, the GPS data will be set to the defaulted date and time and will
require an acquisition of the GPS signal in order to gain the proper date and time.
Acquiring the GPS signal requires running the vehicle in an open/unobstructed view of the sky.
First, contact OnStar(R) Technical Support by pressing the blue button. Allow the OnStar(R)
Technical Advisor to activate the GPS recovery process. This should take approximately 10
minutes. Continue to
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 02-08-46-007C
> Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues > Page 14636
monitor the Tech2(R) for the current time and date. REMINDER - Keep in mind that the time
displayed on the Tech2(R) is in Greenwich Mean Time (GMT) and the offset is based on the time
zones relationship to GMT.
If replacement of the VIU/VCIM is necessary, you MUST reconfigure the OnStar® system. Failure
to reconfigure the system will result in an additional customer visit for repair. OnStar® VIU,
Generations 2 and 3, will require the technician to press the blue OnStar® button to reconfigure the
vehicle with an OnStar® advisor.
OnStar(R) VCIM, Generations 4-7 will require the technician to reconfigure the vehicle with the use
of the TIS2WEB and SPS applications (pass thru only), along with the Tech2(R).
The configuration and set-up procedure is a two-step process that must be completed step-by-step
without interruption or delay in between each step. This procedure enables an automated activation
without a button press by the technician to the OnStar(R) Call Center. Following this procedure, it
may take up to 24 hours for all OnStar(R) services to be fully activated.
How to Order Parts
If the OnStar(R) GPS date/time stamp is non-recoverable and the unit needs to be replaced,
dealers in the U.S. should contact Autocraft Electronics select the catalog item that contains this
bulletin number. Canadian dealers should contact MASS Electronics.
Dealers DO NOT need to call the GM Technical Assistance Center (TAC) for replacement
approval. Autocraft Electronics and MASS Electronics will be responsible for verifying that the
subject vehicle is a candidate for a replacement VIU/VCIM.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 02-08-46-007C
> Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues > Page 14637
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 05-08-46-009B
> Jun > 07 > OnStar(R) - Language Change Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Language Change
Information
Bulletin No.: 05-08-46-009B
Date: June 29, 2007
INFORMATION
Subject: Language Change for OnStar(R) System (U.S. and Canada Only)
Models: 2006-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2006-2008
HUMMER H2, H3 2006-2008 Saab 9-7X
with OnStar(R) (RPO UE1)
Built After and Including VIN Breakpoints Listed Below (2006 MY Only)
Attention:
This bulletin only applies to vehicles equipped with OnStar(R) Generation 6.1 or later with a Station
Identification (STID) Number in the following range: 16,000,000-17,000,000 or
20,000,000-21,999,999 or 23,500,001-26,000,000
Supercede:
This bulletin is being revised to update the service procedure and add a Canadian procedure.
Please discard Corporate Bulletin Numbers 05-08-46-009A and 05-08-46-008A (Section 08 - Body
and Accessories).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 05-08-46-009B
> Jun > 07 > OnStar(R) - Language Change Information > Page 14642
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 05-08-46-009B
> Jun > 07 > OnStar(R) - Language Change Information > Page 14643
Built After and Including the VIN Breakpoints shown.
The Generation (Gen) 6.1 OnStar(R) system found in these vehicles has the capability to change
the default English voice recognition to French or Spanish.
Changing the language of the OnStar(R) system will change the following features to the language
you select:
Voice recognition command prompts will be played in the language selected.
The voice recognition system will only recognize commands given in the selected language.
Once completed, this process completely changes all voice recognition and voice commands of the
OnStar(R) system. The process will need to be repeated in its entirety to change to a different
language, including English.
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 05-08-46-009B
> Jun > 07 > OnStar(R) - Language Change Information > Page 14644
Method 1
Method 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Emergency Contact Module: > 05-08-46-009B
> Jun > 07 > OnStar(R) - Language Change Information > Page 14645
Method 3
The Gen 6.1 version of OnStar(R) does not require the use of the Service Programming System
(SPS) to change the voice recognition system. However, there are three ways to change the
language.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Emergency Contact Module: > 02-08-44-007D >
May > 09 > OnStar(R) - Negative Impact of Cloth/Vinyl Roofs
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Negative Impact of
Cloth/Vinyl Roofs
INFORMATION
Bulletin No.: 02-08-44-007D
Date: May 12, 2009
Subject: Negative Impact of Dealer-Installed Cloth/Vinyl Roofs on XM Radio and/or OnStar(R)
Systems
Models:
2002-2009 Passenger Cars and Trucks (Including Saturn) 2003-2009 HUMMER H2 2006-2009
HUMMER H3 2005-2009 Saab 9-7X with XM Radio (RPO U2K) and/or OnStar(R) (RPO UE1)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
include the 2009 model year. Please discard Corporate Bulletin Number 02-08-44-007C (Section
08 - Body and Accessories).
..............................................................................................................................................................
..................................................................................
Dealers should not install a cloth or vinyl roof on vehicles that have been ordered with the XM radio
option (RPO U2K) and/or OnStar(R) (RPO UE1). The performance of these systems may be
negatively impacted by the installation of the cloth/vinyl roof. Additionally, water leaks may result
from installing a cloth or vinyl roof on vehicles with roof-mounted antenna systems. Relocating the
antenna to another spot on the vehicle exterior, in order to install a cloth or vinyl roof, is not advised
either. The performance of the OnStar(R) and XM Radio antennas has been optimized for their
current locations. Relocating the antennas may result in a performance degradation.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Emergency Contact Module: > 06-08-46-008C >
Sep > 08 > OnStar(R) - Analog/Digital System Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Analog/Digital System
Information
INFORMATION
Bulletin No.: 06-08-46-008C
Date: September 18, 2008
Subject: Information on OnStar(R) Dual-Mode (Analog/Digital) Systems
Models
Supercede:
This bulletin is being revised to correct the model year range for the Chevrolet Impala and Monte
Carlo and update the reference to GM Dealerworld. Please discard Corporate Bulletin Number
06-08-46-008B (Section 08 - Body and Accessories).
All 2000-2003 model year vehicles equipped with OnStar® from the list above were built with
Analog/Digital-Ready OnStar(R) Hardware. Some of these vehicles may have been upgraded to
Dual-Mode (Analog/Digital).
Certain 2004-2005 model year vehicles equipped with OnStar(R) from the list above may have
been either:
^ Originally built at the factory with Dual-Mode (Analog/Digital) OnStar(R) Hardware with
Dual-Mode (Analog/Digital) OnStar(R) Hardware
OR
^ Upgraded to Dual-Mode (Analog/Digital) Hardware
All 2006 model year and newer vehicles equipped with OnStar(R) were built at the factory with
Dual-Mode (Analog/Digital) OnStar(R) Hardware.
If a vehicle has Dual-Mode (Analog/Digital) OnStar(R) Hardware, then the system is capable of
operating on both the analog and digital cellular
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
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Sep > 08 > OnStar(R) - Analog/Digital System Information > Page 14655
networks, and will not require an upgrade in connection with the cellular industry's transition to the
digital network.
In order to verify the type of OnStar(R) Hardware in a vehicle, type the VIN into the VIN look-up
tool, which is available at the OnStar(R) Online Enrollment website within GM GlobalConnect (for
U.S. dealers) or InfoNet (for Canadian dealers).
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Emergency Contact Module: > 08-08-46-004 >
Aug > 08 > OnStar(R) - Aftermarket Device Interference Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Aftermarket Device
Interference Information
INFORMATION
Bulletin No.: 08-08-46-004
Date: August 14, 2008
Subject: Information on Aftermarket Device Interference with OnStar(R) Diagnostic Services
Models: 2009 and Prior GM Passenger Car and Truck (including Saturn) 2009 and Prior HUMMER
H2, H3 Models 2009 and Prior Saab 9-7X
with OnStar(R) (RPO UE1)
This bulletin is being issued to provide dealer service personnel with information regarding
aftermarket devices connected to the Diagnostic Link Connector (DLC) and the impact to
OnStar(R) diagnostic probes and Vehicle Diagnostic e-mails.
Certain aftermarket devices, when connected to the Diagnostic Link Connector, such as, but not
limited to, Scan Tools, Trip Computers, Fuel Economy Analyzers and Insurance Tracking Devices,
interfere with OnStar's ability to perform a diagnostic probe when requested (via a blue button call)
by a subscriber. These devices also prohibit the ability to gather diagnostic and tire pressure data
for a subscriber's scheduled OnStar(R) Vehicle Diagnostic (OVD) e-mail.
These aftermarket devices utilize the Vehicles serial data bus to perform data requests and/or
information gathering. When these devices are requesting data, OnStar(R) is designed not to
interfere with any data request being made by these devices as required by OBD II regulations.
The OnStar(R) advisor is unable to definitively detect the presence of these devices and will only
be able to inform the caller or requester of the unsuccessful or incomplete probe and may in some
cases refer the subscriber/requester to take the vehicle to a dealer for diagnosis of the concern.
When performing a diagnostic check for an unsuccessful or incomplete OnStar(R) diagnostic
probe, or for concerns regarding completeness of the OnStar(R) Vehicle Diagnostic (OVD) e-mail,
verify that an aftermarket device was not present at the time of the requested probe. Regarding the
OVD e-mail, if an aftermarket device is interfering (including a Scan Tool of any type), the e-mail
will consistently display a "yellow" indication in diagnostics section for all vehicle systems except
the OnStar(R) System and Tire Pressure data (not available on all vehicles) will not be displayed
(i.e. section is collapsed). Successful diagnostic probes and complete OVD e-mails will resume
following the removal or disconnecting of the off-board device.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Emergency Contact Module: > 00-08-46-004C >
Jan > 08 > OnStar(R) - Re-establishing OnStar(R) Communications
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Re-establishing OnStar(R)
Communications
Bulletin No.: 00-08-46-004C
Date: January 17, 2008
INFORMATION
Subject: Re-establishing Communications with OnStar(R) Center After Battery Disconnect
Models: 2000-2008 GM Passenger Cars and Trucks (Including Saturn and Saab)
with Digital OnStar(R) (RPO UE1)
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 00-08-46-004B (Section 08 - Body and Accessories).
When servicing any of the above models and a battery cable is disconnected or power to the
OnStar(R) Vehicle Communication Interface Module (VCIM) is interrupted for any reason the
following procedure must be performed to verify proper Global Positioning System (GPS) function.
Never swap OnStar(R) Vehicle Communication Interface Modules (VCIM) from other vehicles.
Transfer of OnStar(R) modules from other vehicles should not be done. Each OnStar(R) module
has a unique identification number. The VCIM has a specific Station Identification (STID). This
identification number is used by the National Cellular Telephone Network and OnStar(R) systems
and is stored in General Motors Vehicle History files by VIN.
After completing ALL repairs to the vehicle you must perform the following procedure:
Move the vehicle into an open area of the service lot.
Sit in the vehicle with the engine running and the radio turned on for five minutes.
Press the OnStar(R) button in the vehicle.
When the OnStar(R) advisor answers ask the advisor to verify the current location of the vehicle.
If the vehicle location is different than the location the OnStar(R) advisor gives contact GM
Technical Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in
the diagnosis of a failed VCIM and, if appropriate, order a replacement part. Replacement parts are
usually shipped out within 24 hours, and a pre-paid return package label will be included for
returning the faulty part. By returning the faulty part, you will avoid a non-return core charge.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Emergency Contact Module: > 05-08-46-009B >
Jun > 07 > OnStar(R) - Language Change Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Language Change
Information
Bulletin No.: 05-08-46-009B
Date: June 29, 2007
INFORMATION
Subject: Language Change for OnStar(R) System (U.S. and Canada Only)
Models: 2006-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2006-2008
HUMMER H2, H3 2006-2008 Saab 9-7X
with OnStar(R) (RPO UE1)
Built After and Including VIN Breakpoints Listed Below (2006 MY Only)
Attention:
This bulletin only applies to vehicles equipped with OnStar(R) Generation 6.1 or later with a Station
Identification (STID) Number in the following range: 16,000,000-17,000,000 or
20,000,000-21,999,999 or 23,500,001-26,000,000
Supercede:
This bulletin is being revised to update the service procedure and add a Canadian procedure.
Please discard Corporate Bulletin Numbers 05-08-46-009A and 05-08-46-008A (Section 08 - Body
and Accessories).
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Information > Technical Service Bulletins > All Other Service Bulletins for Emergency Contact Module: > 05-08-46-009B >
Jun > 07 > OnStar(R) - Language Change Information > Page 14668
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Emergency Contact Module: > 05-08-46-009B >
Jun > 07 > OnStar(R) - Language Change Information > Page 14669
Built After and Including the VIN Breakpoints shown.
The Generation (Gen) 6.1 OnStar(R) system found in these vehicles has the capability to change
the default English voice recognition to French or Spanish.
Changing the language of the OnStar(R) system will change the following features to the language
you select:
Voice recognition command prompts will be played in the language selected.
The voice recognition system will only recognize commands given in the selected language.
Once completed, this process completely changes all voice recognition and voice commands of the
OnStar(R) system. The process will need to be repeated in its entirety to change to a different
language, including English.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Emergency Contact Module: > 05-08-46-009B >
Jun > 07 > OnStar(R) - Language Change Information > Page 14670
Method 1
Method 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Emergency Contact Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Emergency Contact Module: > 05-08-46-009B >
Jun > 07 > OnStar(R) - Language Change Information > Page 14671
Method 3
The Gen 6.1 version of OnStar(R) does not require the use of the Service Programming System
(SPS) to change the voice recognition system. However, there are three ways to change the
language.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > Auxiliary Input / Output
Jack, Entertainment System > Component Information > Diagrams
Auxiliary Input / Output Jack: Diagrams
Entertainment/Communication Connector End Views
Auxiliary Jack Switch Board
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > Television / Monitor >
Component Information > Technical Service Bulletins > Customer Interest for Television / Monitor: > 07-08-44-016A > Aug >
07 > Entertainment System - DVD Monitor Display Inoperative
Television / Monitor: Customer Interest Entertainment System - DVD Monitor Display Inoperative
Bulletin No.: 07-08-44-016A
Date: August 28, 2007
TECHNICAL
Subject: GM Accessories Headrest DVD System Display Monitor Inoperative (Install Cable
Connector Clamps)
Models
Supercede:
This bulletin is being revised to update the models affected list. Please discard Corporate Bulletin
Number 07-08-44-016 (Section 08 - Body & Accessories).
Condition
Some customers may comment on an inoperative display monitor or monitors in the GM
Accessories Headrest DVD System.
Cause
This condition may be caused by a loose connection at the display monitor cable connectors.
These connectors are located at the lower rear part of both front seats. Two cables are routed to
the display monitor in each seat.
Correction
A number of headrest monitors have been replaced under warranty and in many cases, no trouble
was found by the supplier when these units were
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > Television / Monitor >
Component Information > Technical Service Bulletins > Customer Interest for Television / Monitor: > 07-08-44-016A > Aug >
07 > Entertainment System - DVD Monitor Display Inoperative > Page 14684
analyzed. Therefore, technicians should be checking for loose connections and installing cable
connector clamps to ensure a positive and robust connection.
Technicians are to install a video cable connector clamp on each cable connector located under
each front seat. A total of four cable connector clamps, P/N 19159659, are required for each
vehicle.
The illustration above shows a pair of display monitor cable connectors without the cable clamps
installed.
The illustration above shows the display monitor cable connectors with the cable connector clamps.
The lower cable connector clamp is installed but not locked together. The upper cable connector
clamp is closed and locked.
The cable connector clamps have now been added as a permanent component to all GM
Accessories Headrest DVD Systems installation kits.
Parts Information
Warranty Information (excluding Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > Television / Monitor >
Component Information > Technical Service Bulletins > Customer Interest for Television / Monitor: > 07-08-44-016A > Aug >
07 > Entertainment System - DVD Monitor Display Inoperative > Page 14685
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > Television / Monitor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Television / Monitor: >
07-08-44-016A > Aug > 07 > Entertainment System - DVD Monitor Display Inoperative
Television / Monitor: All Technical Service Bulletins Entertainment System - DVD Monitor Display
Inoperative
Bulletin No.: 07-08-44-016A
Date: August 28, 2007
TECHNICAL
Subject: GM Accessories Headrest DVD System Display Monitor Inoperative (Install Cable
Connector Clamps)
Models
Supercede:
This bulletin is being revised to update the models affected list. Please discard Corporate Bulletin
Number 07-08-44-016 (Section 08 - Body & Accessories).
Condition
Some customers may comment on an inoperative display monitor or monitors in the GM
Accessories Headrest DVD System.
Cause
This condition may be caused by a loose connection at the display monitor cable connectors.
These connectors are located at the lower rear part of both front seats. Two cables are routed to
the display monitor in each seat.
Correction
A number of headrest monitors have been replaced under warranty and in many cases, no trouble
was found by the supplier when these units were
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > Television / Monitor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Television / Monitor: >
07-08-44-016A > Aug > 07 > Entertainment System - DVD Monitor Display Inoperative > Page 14691
analyzed. Therefore, technicians should be checking for loose connections and installing cable
connector clamps to ensure a positive and robust connection.
Technicians are to install a video cable connector clamp on each cable connector located under
each front seat. A total of four cable connector clamps, P/N 19159659, are required for each
vehicle.
The illustration above shows a pair of display monitor cable connectors without the cable clamps
installed.
The illustration above shows the display monitor cable connectors with the cable connector clamps.
The lower cable connector clamp is installed but not locked together. The upper cable connector
clamp is closed and locked.
The cable connector clamps have now been added as a permanent component to all GM
Accessories Headrest DVD Systems installation kits.
Parts Information
Warranty Information (excluding Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > Television / Monitor >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Television / Monitor: >
07-08-44-016A > Aug > 07 > Entertainment System - DVD Monitor Display Inoperative > Page 14692
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > Television / Monitor >
Component Information > Technical Service Bulletins > Page 14693
Television / Monitor: Service and Repair
Video Display Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > DVD Player > Component
Information > Technical Service Bulletins > Customer Interest for DVD Player: > 06-08-44-032B > Apr > 08 > Entertainment
System - Rear DVD Screen Inoperative/Blank
DVD Player: Customer Interest Entertainment System - Rear DVD Screen Inoperative/Blank
TECHNICAL
Bulletin No.: 06-08-44-032B
Date: April 10, 2008
Subject: Rear (2nd and *3rd Row (*where applicable)) DVD Screen Blank/Inoperative, Speaker
Pop Noise, Battery Draw, OnStar(R) Audio Inoperative, Nav Screen Flashing, Radio Display
Flashing (Inspect and Repair Wiring Harness if Necessary)
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT* 2007 Chevrolet Avalanche,
Silverado, Suburban, Tahoe* 2007-2008 Chevrolet Equinox 2007 GMC Sierra, Yukon, Yukon XL,
Yukon Denali, Yukon Denali XL* 2007-2008 Pontiac Torrent
with Rear Seat Entertainment System (RPOs U42, UUC)
Supercede:
This bulletin is being revised to add RPO UUC. Please discard Corporate Bulletin Number
06-08-44-032A (Section 08 - Body and Accessories).
Condition
Some customers may comment on any one of the following concerns:
^ Rear DVD Screen Inoperative.
^ Pop Noise in all speakers when cranking the engine.
^ Battery Draw or Battery goes dead.
^ OnStar(R) Inoperative.
^ No Sound from speakers.
^ No OnStar(R) Audio.
^ Navigation screen "Flashing on and off".
^ Radio display "Flashing on and off".
Cause
This condition may be due to an open or shorted wiring harness near the rear DVD display screen
under the headliner.
Correction
To properly inspect for this condition perform the following steps:
1. Lower the rear DVD screen.
2. Remove the four retaining screws that hold the DVD to the headliner. In order to remove the
screen assembly from the overhead bezel a firm tug should be applied to unseat the Z-axis clip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > DVD Player > Component
Information > Technical Service Bulletins > Customer Interest for DVD Player: > 06-08-44-032B > Apr > 08 > Entertainment
System - Rear DVD Screen Inoperative/Blank > Page 14702
3. Inspect the wiring harness for damage or improper routing near drivers side rear screw hole.
Refer to the above graphic (callout # 1 shows proper routing callout # 2 indicates improper routing).
4. Repair the wiring harness as necessary. If the wiring harness is not damaged refer to SI for
diagnosis and repair of the system.
5. Install the DVD screen and the four retaining screws.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > DVD Player > Component
Information > Technical Service Bulletins > Customer Interest for DVD Player: > 07-08-44-016A > Aug > 07 > Entertainment
System - DVD Monitor Display Inoperative
DVD Player: Customer Interest Entertainment System - DVD Monitor Display Inoperative
Bulletin No.: 07-08-44-016A
Date: August 28, 2007
TECHNICAL
Subject: GM Accessories Headrest DVD System Display Monitor Inoperative (Install Cable
Connector Clamps)
Models
Supercede:
This bulletin is being revised to update the models affected list. Please discard Corporate Bulletin
Number 07-08-44-016 (Section 08 - Body & Accessories).
Condition
Some customers may comment on an inoperative display monitor or monitors in the GM
Accessories Headrest DVD System.
Cause
This condition may be caused by a loose connection at the display monitor cable connectors.
These connectors are located at the lower rear part of both front seats. Two cables are routed to
the display monitor in each seat.
Correction
A number of headrest monitors have been replaced under warranty and in many cases, no trouble
was found by the supplier when these units were
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > DVD Player > Component
Information > Technical Service Bulletins > Customer Interest for DVD Player: > 07-08-44-016A > Aug > 07 > Entertainment
System - DVD Monitor Display Inoperative > Page 14707
analyzed. Therefore, technicians should be checking for loose connections and installing cable
connector clamps to ensure a positive and robust connection.
Technicians are to install a video cable connector clamp on each cable connector located under
each front seat. A total of four cable connector clamps, P/N 19159659, are required for each
vehicle.
The illustration above shows a pair of display monitor cable connectors without the cable clamps
installed.
The illustration above shows the display monitor cable connectors with the cable connector clamps.
The lower cable connector clamp is installed but not locked together. The upper cable connector
clamp is closed and locked.
The cable connector clamps have now been added as a permanent component to all GM
Accessories Headrest DVD Systems installation kits.
Parts Information
Warranty Information (excluding Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > DVD Player > Component
Information > Technical Service Bulletins > Customer Interest for DVD Player: > 07-08-44-016A > Aug > 07 > Entertainment
System - DVD Monitor Display Inoperative > Page 14708
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > DVD Player > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for DVD Player: > 06-08-44-032B > Apr > 08 >
Entertainment System - Rear DVD Screen Inoperative/Blank
DVD Player: All Technical Service Bulletins Entertainment System - Rear DVD Screen
Inoperative/Blank
TECHNICAL
Bulletin No.: 06-08-44-032B
Date: April 10, 2008
Subject: Rear (2nd and *3rd Row (*where applicable)) DVD Screen Blank/Inoperative, Speaker
Pop Noise, Battery Draw, OnStar(R) Audio Inoperative, Nav Screen Flashing, Radio Display
Flashing (Inspect and Repair Wiring Harness if Necessary)
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT* 2007 Chevrolet Avalanche,
Silverado, Suburban, Tahoe* 2007-2008 Chevrolet Equinox 2007 GMC Sierra, Yukon, Yukon XL,
Yukon Denali, Yukon Denali XL* 2007-2008 Pontiac Torrent
with Rear Seat Entertainment System (RPOs U42, UUC)
Supercede:
This bulletin is being revised to add RPO UUC. Please discard Corporate Bulletin Number
06-08-44-032A (Section 08 - Body and Accessories).
Condition
Some customers may comment on any one of the following concerns:
^ Rear DVD Screen Inoperative.
^ Pop Noise in all speakers when cranking the engine.
^ Battery Draw or Battery goes dead.
^ OnStar(R) Inoperative.
^ No Sound from speakers.
^ No OnStar(R) Audio.
^ Navigation screen "Flashing on and off".
^ Radio display "Flashing on and off".
Cause
This condition may be due to an open or shorted wiring harness near the rear DVD display screen
under the headliner.
Correction
To properly inspect for this condition perform the following steps:
1. Lower the rear DVD screen.
2. Remove the four retaining screws that hold the DVD to the headliner. In order to remove the
screen assembly from the overhead bezel a firm tug should be applied to unseat the Z-axis clip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > DVD Player > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for DVD Player: > 06-08-44-032B > Apr > 08 >
Entertainment System - Rear DVD Screen Inoperative/Blank > Page 14714
3. Inspect the wiring harness for damage or improper routing near drivers side rear screw hole.
Refer to the above graphic (callout # 1 shows proper routing callout # 2 indicates improper routing).
4. Repair the wiring harness as necessary. If the wiring harness is not damaged refer to SI for
diagnosis and repair of the system.
5. Install the DVD screen and the four retaining screws.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > DVD Player > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for DVD Player: > 07-08-44-016A > Aug > 07 >
Entertainment System - DVD Monitor Display Inoperative
DVD Player: All Technical Service Bulletins Entertainment System - DVD Monitor Display
Inoperative
Bulletin No.: 07-08-44-016A
Date: August 28, 2007
TECHNICAL
Subject: GM Accessories Headrest DVD System Display Monitor Inoperative (Install Cable
Connector Clamps)
Models
Supercede:
This bulletin is being revised to update the models affected list. Please discard Corporate Bulletin
Number 07-08-44-016 (Section 08 - Body & Accessories).
Condition
Some customers may comment on an inoperative display monitor or monitors in the GM
Accessories Headrest DVD System.
Cause
This condition may be caused by a loose connection at the display monitor cable connectors.
These connectors are located at the lower rear part of both front seats. Two cables are routed to
the display monitor in each seat.
Correction
A number of headrest monitors have been replaced under warranty and in many cases, no trouble
was found by the supplier when these units were
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > DVD Player > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for DVD Player: > 07-08-44-016A > Aug > 07 >
Entertainment System - DVD Monitor Display Inoperative > Page 14719
analyzed. Therefore, technicians should be checking for loose connections and installing cable
connector clamps to ensure a positive and robust connection.
Technicians are to install a video cable connector clamp on each cable connector located under
each front seat. A total of four cable connector clamps, P/N 19159659, are required for each
vehicle.
The illustration above shows a pair of display monitor cable connectors without the cable clamps
installed.
The illustration above shows the display monitor cable connectors with the cable connector clamps.
The lower cable connector clamp is installed but not locked together. The upper cable connector
clamp is closed and locked.
The cable connector clamps have now been added as a permanent component to all GM
Accessories Headrest DVD Systems installation kits.
Parts Information
Warranty Information (excluding Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > DVD Player > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for DVD Player: > 07-08-44-016A > Aug > 07 >
Entertainment System - DVD Monitor Display Inoperative > Page 14720
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Entertainment Systems > Headphones / Earphones
> Component Information > Technical Service Bulletins > Entertainment System - Headphone Foam Pad Replacement
Headphones / Earphones: Technical Service Bulletins Entertainment System - Headphone Foam
Pad Replacement
Bulletin No.: 05-08-44-005A
Date: July 19, 2007
INFORMATION
Subject: Information on Rear Seat Headphone Foam Ear Pad Replacement if Worn or Damaged
Models: 2001-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2008
HUMMER H2, H3 2005-2008 Saab 9-7X
with Rear Seat Entertainment System (RPOs U32, U42)
Supercede:
This bulletin is being revised to add models and model years and update the shipping costs.
Please discard Corporate Bulletin Number 05-08-44-005 (Section 08 - Body and Accessories).
Foam ear pads on the rear headphone may become worn or damaged. The headphone foam ear
pads may wear out when not handled and stored carefully.
If the headphone foam ear pads become damaged or worn out, the foam pads can be replaced
separately from the headphone set. It is not necessary to replace the complete headphone set.
Parts Information
All pricing information listed in this bulletin is in U.S. dollars and is subject to change without notice.
The headphone replacement foam ear pads can be ordered in pairs directly through the supplier.
Have your customer call Unwired at 1-888-293-3332, then prompt zero (0). The replacement, P/N
CS-980 (thick earfoam), can be ordered for $3.50 (USD) per pair plus $2.50 USPS shipping.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > Customer Interest: > 05-08-46-004C > Dec > 10 > OnStar(R) - Number
Incorrect/Incorrectly Assigned
Global Positioning System: Customer Interest OnStar(R) - Number Incorrect/Incorrectly Assigned
INFORMATION
Bulletin No.: 05-08-46-004C
Date: December 23, 2010
Subject: OnStar(R) Phone Number Concerns (Phone Number Incorrect/Assigned to Another
Vehicle/Phone) That Occur During Diagnosis of OnStar(R) System
Models:
2000-2011 GM Passenger Cars and Trucks Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update model years up to 2011. Please discard
Corporate Bulletin Number 05-08-46-004B (Section 08 - Body and Accessories).
During diagnosis of an OnStar(R) concern, the technician may be told that the OnStar(R) phone
number is incorrect or tied to another vehicle and/or phone of some kind. To resolve these
concerns, the Tech 2(R) with software version 22.005 (or higher), has the capability to change the
OnStar(R) phone number.
Service Procedure
1. With the Tech 2(R), build the vehicle to specifications within the Diagnostics area of the Tech
2(R). 2. For vehicles with physical-based diagnostics - under Body, go to the OnStar(R) section.
Then select the Special Functions menu.
For vehicles with functional-based diagnostics - under Body and Accessories, go to the Cellular
Communication section. Select Module Setup and then Vehicle Communication Interface Module.
3. Locate the Program Phone Number prompt and select it. The original phone number will be
displayed on the Tech 2(R) screen. 4. Contact the OnStar(R) team at the GM Technical Assistance
Center (TAC) to obtain a new phone number. 5. Highlight the digits of the phone number one at a
time and enter the new phone number using the number keys on the Tech 2(R). 6. Press the Soft
key at the base of the screen for Done once these numbers have been changed on the screen. 7.
Press the Soft key for Done again. The area code or new phone number has now been
programmed into the phone. 8. Cycle the ignition to Off and open the driver's door. 9. Press the
blue OnStar(R) button to make sure that a normal connection can be made to the OnStar(R) call
center. If applicable, make sure the
Hands-Free Calling (HFC) works properly by making a phone call.
10. If the system is working properly, fax or voicemail a case closing into the OnStar(R) team at
TAC with the results. Dealers in Canada should
submit case closing information through the GM infoNET.
Please follow this diagnostic process thoroughly and complete each step. If the condition exhibited
is resolved WITHOUT completing every step, the remaining steps do not need to be performed. If
the procedure above does not resolve the condition, you must contact TAC for further assistance.
This diagnostic approach was developed specifically for this condition and should not automatically
be used for other vehicles with similar symptoms.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > Customer Interest: > 05-08-46-004C > Dec > 10 > OnStar(R) - Number
Incorrect/Incorrectly Assigned > Page 14733
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > Customer Interest: > 02-08-46-006C > Jan > 08 > OnStar(R) - Incorrect GPS
Position Reported During Call
Global Positioning System: Customer Interest OnStar(R) - Incorrect GPS Position Reported During
Call
Bulletin No.: 02-08-46-006C
Date: January 08, 2008
INFORMATION
Subject: Incorrect OnStar(R) Global Positioning System (GPS) Location Reported During
OnStar(R) Call
Models: 2000-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R)
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
02-08-46-006B (Section 08 - Body and Accessories).
A small number of the above-mentioned vehicles may exhibit a condition in which the vehicle
reports an inaccurate location to the OnStar(R) Call Center. This condition can only be identified
via a button press to the OnStar(R) Call Center by the customer. Call Center personnel will be able
to identify this inaccurate location condition. Customers will then be notified through the mail by
OnStar(R) if their vehicle exhibits this condition. Once this condition has been identified OnStar(R)
will instruct the customer to return to the dealership to have this condition corrected.
It is not necessary to reconfigure the vehicle after the following procedure.
In order to correct this condition you must cycle power to the OnStar(R) system. This can be done
by either removing the fuses powering the OnStar(R) system or disconnecting the OnStar(R)
module (VCIM) from the vehicle. As a last resort you can disconnect the vehicle's battery.
The power needs to be removed from the system for approximately 15 minutes.
After completing this procedure the vehicle should be taken to an area with an unobstructed view of
the sky. The vehicle should be kept running for approximately 10 minutes to allow the vehicle to
reacquire the global positioning system (GPS). Then contact the OnStar(R) Call Center via the blue
OnStar(R) button and ask the advisor to verify the GPS position.
If the OnStar(R) advisor still has an inaccurate GPS location refer to the Navigation Systems and
Cellular Communications sub-sections in the Service Manual in order to diagnose and repair the
concern. If the normal diagnostics lead to module replacement you will need to contact Technical
Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in the
diagnosis and if appropriate order a replacement part. Replacement parts are usually shipped out
within 24 hours and a pre-paid return package label will be included for returning the faulty part. By
returning the faulty part you will avoid a significant non-return core charge.
Warranty Information (excluding Saab US Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab US Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > Customer Interest: > 02-08-46-006C > Jan > 08 > OnStar(R) - Incorrect GPS
Position Reported During Call > Page 14738
For vehicles repaired under warranty use, the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > Customer Interest: > 02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS
Signal/Hands Free Issues
Global Positioning System: Customer Interest OnStar(R) - Loss of GPS Signal/Hands Free Issues
Bulletin No.: 02-08-46-007C
Date: November 19, 2007
INFORMATION
Subject: Information on OnStar(R) System - Possible Loss of GPS Signal, Hands-Free Calling
Minutes Expire Prematurely and/or Inability to Add Hands-Free Calling Minutes
Models: 2001-2008 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R) System (RPO UE1)
Supercede:
This bulletin is being revised to add the 2008 model year, warranty information and to provide GPS
signal recovery steps (under Dealer Action heading) to do PRIOR to determining if the VIU/VCIM
needs replacement. Please discard Corporate Bulletin Number 02-08-46-007B (Section 08 - Body
& Accessories).
If the vehicle currently has analog-upgradable OnStar(R) hardware, then the customer should be
made aware of the digital upgrade program per the latest version of Service Bulletin #
05-08-46-006. Any analog OnStar system that is not upgraded prior to the end of 2007 will be
deactivated due to the upcoming phase-out of the analog cellular network in the U.S. and Canada.
If the vehicle has recently been upgraded or has had a service replacement unit installed, this
bulletin may not be applicable.
Certain 2001-2008 model year vehicles equipped with OnStar(R) may exhibit a condition with the
Global Positioning System (GPS) that causes inaccuracies in the GPS clock. The GPS system is
internal to the OnStar(R) Vehicle Interface Unit (VIU) or the Vehicle Communication Interface
Module (VCIM). This inaccuracy can result in a symptom where the OnStar(R) Call Center is
unable to obtain an accurate GPS signal, hands-Free Calling minutes expire prematurely and/or
the inability to add Hands-Free calling minutes.
Customer Notification
OnStar(R) will notify the customer by mail with instructions to contact their dealership service
department.
Dealer Action
Not all vehicles will require VIU/VCIM replacement.
The GPS signal in some vehicles may be recoverable. To determine if the signal is recoverable,
simply connect the Tech2(R) and using the GPS information data display option, observe the GPS
date and time. If the date/time stamps are equal to a date approximately 19 years in the future, the
GPS clock has exceeded its capacity and the VIU/VCIM will need to be replaced. If the date/time
stamp is in the past or near future, the GPS clock has simply generated an inaccurate value and
may be recoverable by performing the following power-up reset.
To initiate a power-up reset, battery voltage (batt. +) must be removed from the VIU/VCIM. The
preferred methods, in order, of initiating the reset are outlined below.
Remove the fuse that supplies Battery positive (Batt. +) voltage to the module (refer to the
applicable Service Information schematics for the appropriate fuse).
The next preferred method is to remove the connector to the OnStar(R) unit that Batt + is
contained.
The least preferable method is to remove the negative terminal of the vehicle battery. This will not
only initiate the power-up reset, but it may also result in the loss of radio presets and other stored
personalization information/settings in other modules as well.
After initiating the power-up reset, the GPS data will be set to the defaulted date and time and will
require an acquisition of the GPS signal in order to gain the proper date and time.
Acquiring the GPS signal requires running the vehicle in an open/unobstructed view of the sky.
First, contact OnStar(R) Technical Support by pressing the blue button. Allow the OnStar(R)
Technical Advisor to activate the GPS recovery process. This should take approximately 10
minutes. Continue to
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > Customer Interest: > 02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS
Signal/Hands Free Issues > Page 14743
monitor the Tech2(R) for the current time and date. REMINDER - Keep in mind that the time
displayed on the Tech2(R) is in Greenwich Mean Time (GMT) and the offset is based on the time
zones relationship to GMT.
If replacement of the VIU/VCIM is necessary, you MUST reconfigure the OnStar® system. Failure
to reconfigure the system will result in an additional customer visit for repair. OnStar® VIU,
Generations 2 and 3, will require the technician to press the blue OnStar® button to reconfigure the
vehicle with an OnStar® advisor.
OnStar(R) VCIM, Generations 4-7 will require the technician to reconfigure the vehicle with the use
of the TIS2WEB and SPS applications (pass thru only), along with the Tech2(R).
The configuration and set-up procedure is a two-step process that must be completed step-by-step
without interruption or delay in between each step. This procedure enables an automated activation
without a button press by the technician to the OnStar(R) Call Center. Following this procedure, it
may take up to 24 hours for all OnStar(R) services to be fully activated.
How to Order Parts
If the OnStar(R) GPS date/time stamp is non-recoverable and the unit needs to be replaced,
dealers in the U.S. should contact Autocraft Electronics select the catalog item that contains this
bulletin number. Canadian dealers should contact MASS Electronics.
Dealers DO NOT need to call the GM Technical Assistance Center (TAC) for replacement
approval. Autocraft Electronics and MASS Electronics will be responsible for verifying that the
subject vehicle is a candidate for a replacement VIU/VCIM.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > Customer Interest: > 02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS
Signal/Hands Free Issues > Page 14744
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 05-08-46-004C
> Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned
Global Positioning System: All Technical Service Bulletins OnStar(R) - Number Incorrect/Incorrectly
Assigned
INFORMATION
Bulletin No.: 05-08-46-004C
Date: December 23, 2010
Subject: OnStar(R) Phone Number Concerns (Phone Number Incorrect/Assigned to Another
Vehicle/Phone) That Occur During Diagnosis of OnStar(R) System
Models:
2000-2011 GM Passenger Cars and Trucks Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update model years up to 2011. Please discard
Corporate Bulletin Number 05-08-46-004B (Section 08 - Body and Accessories).
During diagnosis of an OnStar(R) concern, the technician may be told that the OnStar(R) phone
number is incorrect or tied to another vehicle and/or phone of some kind. To resolve these
concerns, the Tech 2(R) with software version 22.005 (or higher), has the capability to change the
OnStar(R) phone number.
Service Procedure
1. With the Tech 2(R), build the vehicle to specifications within the Diagnostics area of the Tech
2(R). 2. For vehicles with physical-based diagnostics - under Body, go to the OnStar(R) section.
Then select the Special Functions menu.
For vehicles with functional-based diagnostics - under Body and Accessories, go to the Cellular
Communication section. Select Module Setup and then Vehicle Communication Interface Module.
3. Locate the Program Phone Number prompt and select it. The original phone number will be
displayed on the Tech 2(R) screen. 4. Contact the OnStar(R) team at the GM Technical Assistance
Center (TAC) to obtain a new phone number. 5. Highlight the digits of the phone number one at a
time and enter the new phone number using the number keys on the Tech 2(R). 6. Press the Soft
key at the base of the screen for Done once these numbers have been changed on the screen. 7.
Press the Soft key for Done again. The area code or new phone number has now been
programmed into the phone. 8. Cycle the ignition to Off and open the driver's door. 9. Press the
blue OnStar(R) button to make sure that a normal connection can be made to the OnStar(R) call
center. If applicable, make sure the
Hands-Free Calling (HFC) works properly by making a phone call.
10. If the system is working properly, fax or voicemail a case closing into the OnStar(R) team at
TAC with the results. Dealers in Canada should
submit case closing information through the GM infoNET.
Please follow this diagnostic process thoroughly and complete each step. If the condition exhibited
is resolved WITHOUT completing every step, the remaining steps do not need to be performed. If
the procedure above does not resolve the condition, you must contact TAC for further assistance.
This diagnostic approach was developed specifically for this condition and should not automatically
be used for other vehicles with similar symptoms.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 05-08-46-004C
> Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned > Page 14750
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 06-08-46-005B
> Feb > 10 > OnStar(R) - Availability for Hearing Impaired
Global Positioning System: All Technical Service Bulletins OnStar(R) - Availability for Hearing
Impaired
INFORMATION
Bulletin No.: 06-08-46-005B
Date: February 11, 2010
Subject: Availability of OnStar(R) for Hearing Impaired
Models:
2007-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn and Saab) Except 2007
Cadillac CTS Except 2007-2008 HUMMER H2, H2 SUT Except 2007 Pontiac Montana SV6 Except
2007-2010 Pontiac Vibe Except 2007 Saturn ION, VUE Except 2008 Saturn Astra
Supercede: This bulletin is being revised to add a Note regarding 2009 Bluetooth(R)-equipped
vehicles, additional models and model years. Please discard Corporate Bulletin Number
06-08-46-005A (Section 08 - Body and Accessories).
Important This service bulletin is not applicable to 'GM of Canada' dealers and retailers.
Note
On 2009 and newer model year vehicles equipped with the Bluetooth(R) feature (option code
UPF), when up-fitted with TTY capabilities, the Bluetooth(R) feature will be disabled.
OnStar with Text Telephone Capability (TTY)
General Motors is pleased to announce that the safety and security of OnStar is now available to
our deaf, hard of hearing and speech impaired customers. The current vehicles listed above, as
well as forthcoming vehicles equipped with OnStar hardware version 7.0 or higher, have the ability
to utilize texting telephones. Vehicle specific TTY capability can be determined by utilizing the VIN
lookup Tool. Additional information may be found by referring to www.onstar.com/tty.
TTY equipment allows people who are deaf, hard of hearing or speech impaired, in-vehicle access
to 911 and basic OnStar(R) services by pressing the OnStar(R) blue button or red emergency
button. The keypad provides a means to communicate by allowing customers to type messages
back and forth, with an OnStar(R) advisor or other party when using the OnStar(R) Hands-Free
Calling feature. A TTY is required at both ends of the conversation in order to communicate.
OnStar(R) Turn by Turn Navigation and Virtual Advisor are not available with the addition of TTY.
The Reimbursement Program
This equipment will be made available to eligible customers through GM Mobility and OnStar(R).
Under this program, the customer must complete a GM Mobility application form. To take
advantage of the program, vehicles must be adapted at the time of delivery for purchase / lease
and a dealer claim ($1,000 Maximum per GM Mobility guidelines) with the application form
submitted to GM Mobility. Saab dealers must fax documents. GM Dealers will receive electronic
reimbursement directly from GM Mobility. Saab dealers will receive a check directly from
OnStar(R). Additional questions or concerns should be directed to the OnStar Dealer Center.
How to Order
To order the dealer installed kit, contact AutoCraft Electronics or via the web at www.autocraft.com.
The kit consists of an OnStar Interface Module, a Dial Pad (for making calls), OTIM wiring harness,
the TTY device, installation/Tech 2(R) programming instructions and owner's guide.
Warranty Information
The Ultra-Tec Compact C TTY device is manufactured by an independent manufacturer and is
covered by the manufacturer's warranty. It is not covered under the GM New Vehicle Limited
Warranty. All other parts (OTIM, dial pad and OTIM wiring harness) are covered by the standard
GM new vehicle parts and labor warranty. Replacement parts are available through AutoCraft
Electronics. Contact AutoCraft Electronics or via the web.
Warranty claims for the OTIM, dial pad and OTIM wiring harness should be submitted through
normal warranty procedures using a sublet warranty claim with GM Labor Operation R5140.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 06-08-46-005B
> Feb > 10 > OnStar(R) - Availability for Hearing Impaired > Page 14755
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 02-08-44-007D
> May > 09 > OnStar(R) - Negative Impact of Cloth/Vinyl Roofs
Global Positioning System: All Technical Service Bulletins OnStar(R) - Negative Impact of
Cloth/Vinyl Roofs
INFORMATION
Bulletin No.: 02-08-44-007D
Date: May 12, 2009
Subject: Negative Impact of Dealer-Installed Cloth/Vinyl Roofs on XM Radio and/or OnStar(R)
Systems
Models:
2002-2009 Passenger Cars and Trucks (Including Saturn) 2003-2009 HUMMER H2 2006-2009
HUMMER H3 2005-2009 Saab 9-7X with XM Radio (RPO U2K) and/or OnStar(R) (RPO UE1)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
include the 2009 model year. Please discard Corporate Bulletin Number 02-08-44-007C (Section
08 - Body and Accessories).
..............................................................................................................................................................
..................................................................................
Dealers should not install a cloth or vinyl roof on vehicles that have been ordered with the XM radio
option (RPO U2K) and/or OnStar(R) (RPO UE1). The performance of these systems may be
negatively impacted by the installation of the cloth/vinyl roof. Additionally, water leaks may result
from installing a cloth or vinyl roof on vehicles with roof-mounted antenna systems. Relocating the
antenna to another spot on the vehicle exterior, in order to install a cloth or vinyl roof, is not advised
either. The performance of the OnStar(R) and XM Radio antennas has been optimized for their
current locations. Relocating the antennas may result in a performance degradation.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 06-08-46-008C
> Sep > 08 > OnStar(R) - Analog/Digital System Information
Global Positioning System: All Technical Service Bulletins OnStar(R) - Analog/Digital System
Information
INFORMATION
Bulletin No.: 06-08-46-008C
Date: September 18, 2008
Subject: Information on OnStar(R) Dual-Mode (Analog/Digital) Systems
Models
Supercede:
This bulletin is being revised to correct the model year range for the Chevrolet Impala and Monte
Carlo and update the reference to GM Dealerworld. Please discard Corporate Bulletin Number
06-08-46-008B (Section 08 - Body and Accessories).
All 2000-2003 model year vehicles equipped with OnStar® from the list above were built with
Analog/Digital-Ready OnStar(R) Hardware. Some of these vehicles may have been upgraded to
Dual-Mode (Analog/Digital).
Certain 2004-2005 model year vehicles equipped with OnStar(R) from the list above may have
been either:
^ Originally built at the factory with Dual-Mode (Analog/Digital) OnStar(R) Hardware with
Dual-Mode (Analog/Digital) OnStar(R) Hardware
OR
^ Upgraded to Dual-Mode (Analog/Digital) Hardware
All 2006 model year and newer vehicles equipped with OnStar(R) were built at the factory with
Dual-Mode (Analog/Digital) OnStar(R) Hardware.
If a vehicle has Dual-Mode (Analog/Digital) OnStar(R) Hardware, then the system is capable of
operating on both the analog and digital cellular
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 06-08-46-008C
> Sep > 08 > OnStar(R) - Analog/Digital System Information > Page 14764
networks, and will not require an upgrade in connection with the cellular industry's transition to the
digital network.
In order to verify the type of OnStar(R) Hardware in a vehicle, type the VIN into the VIN look-up
tool, which is available at the OnStar(R) Online Enrollment website within GM GlobalConnect (for
U.S. dealers) or InfoNet (for Canadian dealers).
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 08-08-46-004 >
Aug > 08 > OnStar(R) - Aftermarket Device Interference Information
Global Positioning System: All Technical Service Bulletins OnStar(R) - Aftermarket Device
Interference Information
INFORMATION
Bulletin No.: 08-08-46-004
Date: August 14, 2008
Subject: Information on Aftermarket Device Interference with OnStar(R) Diagnostic Services
Models: 2009 and Prior GM Passenger Car and Truck (including Saturn) 2009 and Prior HUMMER
H2, H3 Models 2009 and Prior Saab 9-7X
with OnStar(R) (RPO UE1)
This bulletin is being issued to provide dealer service personnel with information regarding
aftermarket devices connected to the Diagnostic Link Connector (DLC) and the impact to
OnStar(R) diagnostic probes and Vehicle Diagnostic e-mails.
Certain aftermarket devices, when connected to the Diagnostic Link Connector, such as, but not
limited to, Scan Tools, Trip Computers, Fuel Economy Analyzers and Insurance Tracking Devices,
interfere with OnStar's ability to perform a diagnostic probe when requested (via a blue button call)
by a subscriber. These devices also prohibit the ability to gather diagnostic and tire pressure data
for a subscriber's scheduled OnStar(R) Vehicle Diagnostic (OVD) e-mail.
These aftermarket devices utilize the Vehicles serial data bus to perform data requests and/or
information gathering. When these devices are requesting data, OnStar(R) is designed not to
interfere with any data request being made by these devices as required by OBD II regulations.
The OnStar(R) advisor is unable to definitively detect the presence of these devices and will only
be able to inform the caller or requester of the unsuccessful or incomplete probe and may in some
cases refer the subscriber/requester to take the vehicle to a dealer for diagnosis of the concern.
When performing a diagnostic check for an unsuccessful or incomplete OnStar(R) diagnostic
probe, or for concerns regarding completeness of the OnStar(R) Vehicle Diagnostic (OVD) e-mail,
verify that an aftermarket device was not present at the time of the requested probe. Regarding the
OVD e-mail, if an aftermarket device is interfering (including a Scan Tool of any type), the e-mail
will consistently display a "yellow" indication in diagnostics section for all vehicle systems except
the OnStar(R) System and Tire Pressure data (not available on all vehicles) will not be displayed
(i.e. section is collapsed). Successful diagnostic probes and complete OVD e-mails will resume
following the removal or disconnecting of the off-board device.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 00-08-46-004C
> Jan > 08 > OnStar(R) - Re-establishing OnStar(R) Communications
Global Positioning System: All Technical Service Bulletins OnStar(R) - Re-establishing OnStar(R)
Communications
Bulletin No.: 00-08-46-004C
Date: January 17, 2008
INFORMATION
Subject: Re-establishing Communications with OnStar(R) Center After Battery Disconnect
Models: 2000-2008 GM Passenger Cars and Trucks (Including Saturn and Saab)
with Digital OnStar(R) (RPO UE1)
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 00-08-46-004B (Section 08 - Body and Accessories).
When servicing any of the above models and a battery cable is disconnected or power to the
OnStar(R) Vehicle Communication Interface Module (VCIM) is interrupted for any reason the
following procedure must be performed to verify proper Global Positioning System (GPS) function.
Never swap OnStar(R) Vehicle Communication Interface Modules (VCIM) from other vehicles.
Transfer of OnStar(R) modules from other vehicles should not be done. Each OnStar(R) module
has a unique identification number. The VCIM has a specific Station Identification (STID). This
identification number is used by the National Cellular Telephone Network and OnStar(R) systems
and is stored in General Motors Vehicle History files by VIN.
After completing ALL repairs to the vehicle you must perform the following procedure:
Move the vehicle into an open area of the service lot.
Sit in the vehicle with the engine running and the radio turned on for five minutes.
Press the OnStar(R) button in the vehicle.
When the OnStar(R) advisor answers ask the advisor to verify the current location of the vehicle.
If the vehicle location is different than the location the OnStar(R) advisor gives contact GM
Technical Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in
the diagnosis of a failed VCIM and, if appropriate, order a replacement part. Replacement parts are
usually shipped out within 24 hours, and a pre-paid return package label will be included for
returning the faulty part. By returning the faulty part, you will avoid a non-return core charge.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 02-08-46-006C
> Jan > 08 > OnStar(R) - Incorrect GPS Position Reported During Call
Global Positioning System: All Technical Service Bulletins OnStar(R) - Incorrect GPS Position
Reported During Call
Bulletin No.: 02-08-46-006C
Date: January 08, 2008
INFORMATION
Subject: Incorrect OnStar(R) Global Positioning System (GPS) Location Reported During
OnStar(R) Call
Models: 2000-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R)
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
02-08-46-006B (Section 08 - Body and Accessories).
A small number of the above-mentioned vehicles may exhibit a condition in which the vehicle
reports an inaccurate location to the OnStar(R) Call Center. This condition can only be identified
via a button press to the OnStar(R) Call Center by the customer. Call Center personnel will be able
to identify this inaccurate location condition. Customers will then be notified through the mail by
OnStar(R) if their vehicle exhibits this condition. Once this condition has been identified OnStar(R)
will instruct the customer to return to the dealership to have this condition corrected.
It is not necessary to reconfigure the vehicle after the following procedure.
In order to correct this condition you must cycle power to the OnStar(R) system. This can be done
by either removing the fuses powering the OnStar(R) system or disconnecting the OnStar(R)
module (VCIM) from the vehicle. As a last resort you can disconnect the vehicle's battery.
The power needs to be removed from the system for approximately 15 minutes.
After completing this procedure the vehicle should be taken to an area with an unobstructed view of
the sky. The vehicle should be kept running for approximately 10 minutes to allow the vehicle to
reacquire the global positioning system (GPS). Then contact the OnStar(R) Call Center via the blue
OnStar(R) button and ask the advisor to verify the GPS position.
If the OnStar(R) advisor still has an inaccurate GPS location refer to the Navigation Systems and
Cellular Communications sub-sections in the Service Manual in order to diagnose and repair the
concern. If the normal diagnostics lead to module replacement you will need to contact Technical
Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in the
diagnosis and if appropriate order a replacement part. Replacement parts are usually shipped out
within 24 hours and a pre-paid return package label will be included for returning the faulty part. By
returning the faulty part you will avoid a significant non-return core charge.
Warranty Information (excluding Saab US Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab US Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 02-08-46-006C
> Jan > 08 > OnStar(R) - Incorrect GPS Position Reported During Call > Page 14777
For vehicles repaired under warranty use, the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 02-08-46-007C
> Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues
Global Positioning System: All Technical Service Bulletins OnStar(R) - Loss of GPS Signal/Hands
Free Issues
Bulletin No.: 02-08-46-007C
Date: November 19, 2007
INFORMATION
Subject: Information on OnStar(R) System - Possible Loss of GPS Signal, Hands-Free Calling
Minutes Expire Prematurely and/or Inability to Add Hands-Free Calling Minutes
Models: 2001-2008 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R) System (RPO UE1)
Supercede:
This bulletin is being revised to add the 2008 model year, warranty information and to provide GPS
signal recovery steps (under Dealer Action heading) to do PRIOR to determining if the VIU/VCIM
needs replacement. Please discard Corporate Bulletin Number 02-08-46-007B (Section 08 - Body
& Accessories).
If the vehicle currently has analog-upgradable OnStar(R) hardware, then the customer should be
made aware of the digital upgrade program per the latest version of Service Bulletin #
05-08-46-006. Any analog OnStar system that is not upgraded prior to the end of 2007 will be
deactivated due to the upcoming phase-out of the analog cellular network in the U.S. and Canada.
If the vehicle has recently been upgraded or has had a service replacement unit installed, this
bulletin may not be applicable.
Certain 2001-2008 model year vehicles equipped with OnStar(R) may exhibit a condition with the
Global Positioning System (GPS) that causes inaccuracies in the GPS clock. The GPS system is
internal to the OnStar(R) Vehicle Interface Unit (VIU) or the Vehicle Communication Interface
Module (VCIM). This inaccuracy can result in a symptom where the OnStar(R) Call Center is
unable to obtain an accurate GPS signal, hands-Free Calling minutes expire prematurely and/or
the inability to add Hands-Free calling minutes.
Customer Notification
OnStar(R) will notify the customer by mail with instructions to contact their dealership service
department.
Dealer Action
Not all vehicles will require VIU/VCIM replacement.
The GPS signal in some vehicles may be recoverable. To determine if the signal is recoverable,
simply connect the Tech2(R) and using the GPS information data display option, observe the GPS
date and time. If the date/time stamps are equal to a date approximately 19 years in the future, the
GPS clock has exceeded its capacity and the VIU/VCIM will need to be replaced. If the date/time
stamp is in the past or near future, the GPS clock has simply generated an inaccurate value and
may be recoverable by performing the following power-up reset.
To initiate a power-up reset, battery voltage (batt. +) must be removed from the VIU/VCIM. The
preferred methods, in order, of initiating the reset are outlined below.
Remove the fuse that supplies Battery positive (Batt. +) voltage to the module (refer to the
applicable Service Information schematics for the appropriate fuse).
The next preferred method is to remove the connector to the OnStar(R) unit that Batt + is
contained.
The least preferable method is to remove the negative terminal of the vehicle battery. This will not
only initiate the power-up reset, but it may also result in the loss of radio presets and other stored
personalization information/settings in other modules as well.
After initiating the power-up reset, the GPS data will be set to the defaulted date and time and will
require an acquisition of the GPS signal in order to gain the proper date and time.
Acquiring the GPS signal requires running the vehicle in an open/unobstructed view of the sky.
First, contact OnStar(R) Technical Support by pressing the blue button. Allow the OnStar(R)
Technical Advisor to activate the GPS recovery process. This should take approximately 10
minutes. Continue to
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 02-08-46-007C
> Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues > Page 14782
monitor the Tech2(R) for the current time and date. REMINDER - Keep in mind that the time
displayed on the Tech2(R) is in Greenwich Mean Time (GMT) and the offset is based on the time
zones relationship to GMT.
If replacement of the VIU/VCIM is necessary, you MUST reconfigure the OnStar® system. Failure
to reconfigure the system will result in an additional customer visit for repair. OnStar® VIU,
Generations 2 and 3, will require the technician to press the blue OnStar® button to reconfigure the
vehicle with an OnStar® advisor.
OnStar(R) VCIM, Generations 4-7 will require the technician to reconfigure the vehicle with the use
of the TIS2WEB and SPS applications (pass thru only), along with the Tech2(R).
The configuration and set-up procedure is a two-step process that must be completed step-by-step
without interruption or delay in between each step. This procedure enables an automated activation
without a button press by the technician to the OnStar(R) Call Center. Following this procedure, it
may take up to 24 hours for all OnStar(R) services to be fully activated.
How to Order Parts
If the OnStar(R) GPS date/time stamp is non-recoverable and the unit needs to be replaced,
dealers in the U.S. should contact Autocraft Electronics select the catalog item that contains this
bulletin number. Canadian dealers should contact MASS Electronics.
Dealers DO NOT need to call the GM Technical Assistance Center (TAC) for replacement
approval. Autocraft Electronics and MASS Electronics will be responsible for verifying that the
subject vehicle is a candidate for a replacement VIU/VCIM.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 02-08-46-007C
> Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues > Page 14783
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 05-08-46-009B
> Jun > 07 > OnStar(R) - Language Change Information
Global Positioning System: All Technical Service Bulletins OnStar(R) - Language Change
Information
Bulletin No.: 05-08-46-009B
Date: June 29, 2007
INFORMATION
Subject: Language Change for OnStar(R) System (U.S. and Canada Only)
Models: 2006-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2006-2008
HUMMER H2, H3 2006-2008 Saab 9-7X
with OnStar(R) (RPO UE1)
Built After and Including VIN Breakpoints Listed Below (2006 MY Only)
Attention:
This bulletin only applies to vehicles equipped with OnStar(R) Generation 6.1 or later with a Station
Identification (STID) Number in the following range: 16,000,000-17,000,000 or
20,000,000-21,999,999 or 23,500,001-26,000,000
Supercede:
This bulletin is being revised to update the service procedure and add a Canadian procedure.
Please discard Corporate Bulletin Numbers 05-08-46-009A and 05-08-46-008A (Section 08 - Body
and Accessories).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 05-08-46-009B
> Jun > 07 > OnStar(R) - Language Change Information > Page 14788
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 05-08-46-009B
> Jun > 07 > OnStar(R) - Language Change Information > Page 14789
Built After and Including the VIN Breakpoints shown.
The Generation (Gen) 6.1 OnStar(R) system found in these vehicles has the capability to change
the default English voice recognition to French or Spanish.
Changing the language of the OnStar(R) system will change the following features to the language
you select:
Voice recognition command prompts will be played in the language selected.
The voice recognition system will only recognize commands given in the selected language.
Once completed, this process completely changes all voice recognition and voice commands of the
OnStar(R) system. The process will need to be repeated in its entirety to change to a different
language, including English.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 05-08-46-009B
> Jun > 07 > OnStar(R) - Language Change Information > Page 14790
Method 1
Method 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Global Positioning System: > 05-08-46-009B
> Jun > 07 > OnStar(R) - Language Change Information > Page 14791
Method 3
The Gen 6.1 version of OnStar(R) does not require the use of the Service Programming System
(SPS) to change the voice recognition system. However, there are three ways to change the
language.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 06-08-46-005B >
Feb > 10 > OnStar(R) - Availability for Hearing Impaired
Global Positioning System: All Technical Service Bulletins OnStar(R) - Availability for Hearing
Impaired
INFORMATION
Bulletin No.: 06-08-46-005B
Date: February 11, 2010
Subject: Availability of OnStar(R) for Hearing Impaired
Models:
2007-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn and Saab) Except 2007
Cadillac CTS Except 2007-2008 HUMMER H2, H2 SUT Except 2007 Pontiac Montana SV6 Except
2007-2010 Pontiac Vibe Except 2007 Saturn ION, VUE Except 2008 Saturn Astra
Supercede: This bulletin is being revised to add a Note regarding 2009 Bluetooth(R)-equipped
vehicles, additional models and model years. Please discard Corporate Bulletin Number
06-08-46-005A (Section 08 - Body and Accessories).
Important This service bulletin is not applicable to 'GM of Canada' dealers and retailers.
Note
On 2009 and newer model year vehicles equipped with the Bluetooth(R) feature (option code
UPF), when up-fitted with TTY capabilities, the Bluetooth(R) feature will be disabled.
OnStar with Text Telephone Capability (TTY)
General Motors is pleased to announce that the safety and security of OnStar is now available to
our deaf, hard of hearing and speech impaired customers. The current vehicles listed above, as
well as forthcoming vehicles equipped with OnStar hardware version 7.0 or higher, have the ability
to utilize texting telephones. Vehicle specific TTY capability can be determined by utilizing the VIN
lookup Tool. Additional information may be found by referring to www.onstar.com/tty.
TTY equipment allows people who are deaf, hard of hearing or speech impaired, in-vehicle access
to 911 and basic OnStar(R) services by pressing the OnStar(R) blue button or red emergency
button. The keypad provides a means to communicate by allowing customers to type messages
back and forth, with an OnStar(R) advisor or other party when using the OnStar(R) Hands-Free
Calling feature. A TTY is required at both ends of the conversation in order to communicate.
OnStar(R) Turn by Turn Navigation and Virtual Advisor are not available with the addition of TTY.
The Reimbursement Program
This equipment will be made available to eligible customers through GM Mobility and OnStar(R).
Under this program, the customer must complete a GM Mobility application form. To take
advantage of the program, vehicles must be adapted at the time of delivery for purchase / lease
and a dealer claim ($1,000 Maximum per GM Mobility guidelines) with the application form
submitted to GM Mobility. Saab dealers must fax documents. GM Dealers will receive electronic
reimbursement directly from GM Mobility. Saab dealers will receive a check directly from
OnStar(R). Additional questions or concerns should be directed to the OnStar Dealer Center.
How to Order
To order the dealer installed kit, contact AutoCraft Electronics or via the web at www.autocraft.com.
The kit consists of an OnStar Interface Module, a Dial Pad (for making calls), OTIM wiring harness,
the TTY device, installation/Tech 2(R) programming instructions and owner's guide.
Warranty Information
The Ultra-Tec Compact C TTY device is manufactured by an independent manufacturer and is
covered by the manufacturer's warranty. It is not covered under the GM New Vehicle Limited
Warranty. All other parts (OTIM, dial pad and OTIM wiring harness) are covered by the standard
GM new vehicle parts and labor warranty. Replacement parts are available through AutoCraft
Electronics. Contact AutoCraft Electronics or via the web.
Warranty claims for the OTIM, dial pad and OTIM wiring harness should be submitted through
normal warranty procedures using a sublet warranty claim with GM Labor Operation R5140.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 06-08-46-005B >
Feb > 10 > OnStar(R) - Availability for Hearing Impaired > Page 14797
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 02-08-44-007D >
May > 09 > OnStar(R) - Negative Impact of Cloth/Vinyl Roofs
Global Positioning System: All Technical Service Bulletins OnStar(R) - Negative Impact of
Cloth/Vinyl Roofs
INFORMATION
Bulletin No.: 02-08-44-007D
Date: May 12, 2009
Subject: Negative Impact of Dealer-Installed Cloth/Vinyl Roofs on XM Radio and/or OnStar(R)
Systems
Models:
2002-2009 Passenger Cars and Trucks (Including Saturn) 2003-2009 HUMMER H2 2006-2009
HUMMER H3 2005-2009 Saab 9-7X with XM Radio (RPO U2K) and/or OnStar(R) (RPO UE1)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
include the 2009 model year. Please discard Corporate Bulletin Number 02-08-44-007C (Section
08 - Body and Accessories).
..............................................................................................................................................................
..................................................................................
Dealers should not install a cloth or vinyl roof on vehicles that have been ordered with the XM radio
option (RPO U2K) and/or OnStar(R) (RPO UE1). The performance of these systems may be
negatively impacted by the installation of the cloth/vinyl roof. Additionally, water leaks may result
from installing a cloth or vinyl roof on vehicles with roof-mounted antenna systems. Relocating the
antenna to another spot on the vehicle exterior, in order to install a cloth or vinyl roof, is not advised
either. The performance of the OnStar(R) and XM Radio antennas has been optimized for their
current locations. Relocating the antennas may result in a performance degradation.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 06-08-46-008C >
Sep > 08 > OnStar(R) - Analog/Digital System Information
Global Positioning System: All Technical Service Bulletins OnStar(R) - Analog/Digital System
Information
INFORMATION
Bulletin No.: 06-08-46-008C
Date: September 18, 2008
Subject: Information on OnStar(R) Dual-Mode (Analog/Digital) Systems
Models
Supercede:
This bulletin is being revised to correct the model year range for the Chevrolet Impala and Monte
Carlo and update the reference to GM Dealerworld. Please discard Corporate Bulletin Number
06-08-46-008B (Section 08 - Body and Accessories).
All 2000-2003 model year vehicles equipped with OnStar® from the list above were built with
Analog/Digital-Ready OnStar(R) Hardware. Some of these vehicles may have been upgraded to
Dual-Mode (Analog/Digital).
Certain 2004-2005 model year vehicles equipped with OnStar(R) from the list above may have
been either:
^ Originally built at the factory with Dual-Mode (Analog/Digital) OnStar(R) Hardware with
Dual-Mode (Analog/Digital) OnStar(R) Hardware
OR
^ Upgraded to Dual-Mode (Analog/Digital) Hardware
All 2006 model year and newer vehicles equipped with OnStar(R) were built at the factory with
Dual-Mode (Analog/Digital) OnStar(R) Hardware.
If a vehicle has Dual-Mode (Analog/Digital) OnStar(R) Hardware, then the system is capable of
operating on both the analog and digital cellular
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 06-08-46-008C >
Sep > 08 > OnStar(R) - Analog/Digital System Information > Page 14806
networks, and will not require an upgrade in connection with the cellular industry's transition to the
digital network.
In order to verify the type of OnStar(R) Hardware in a vehicle, type the VIN into the VIN look-up
tool, which is available at the OnStar(R) Online Enrollment website within GM GlobalConnect (for
U.S. dealers) or InfoNet (for Canadian dealers).
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 08-08-46-004 > Aug
> 08 > OnStar(R) - Aftermarket Device Interference Information
Global Positioning System: All Technical Service Bulletins OnStar(R) - Aftermarket Device
Interference Information
INFORMATION
Bulletin No.: 08-08-46-004
Date: August 14, 2008
Subject: Information on Aftermarket Device Interference with OnStar(R) Diagnostic Services
Models: 2009 and Prior GM Passenger Car and Truck (including Saturn) 2009 and Prior HUMMER
H2, H3 Models 2009 and Prior Saab 9-7X
with OnStar(R) (RPO UE1)
This bulletin is being issued to provide dealer service personnel with information regarding
aftermarket devices connected to the Diagnostic Link Connector (DLC) and the impact to
OnStar(R) diagnostic probes and Vehicle Diagnostic e-mails.
Certain aftermarket devices, when connected to the Diagnostic Link Connector, such as, but not
limited to, Scan Tools, Trip Computers, Fuel Economy Analyzers and Insurance Tracking Devices,
interfere with OnStar's ability to perform a diagnostic probe when requested (via a blue button call)
by a subscriber. These devices also prohibit the ability to gather diagnostic and tire pressure data
for a subscriber's scheduled OnStar(R) Vehicle Diagnostic (OVD) e-mail.
These aftermarket devices utilize the Vehicles serial data bus to perform data requests and/or
information gathering. When these devices are requesting data, OnStar(R) is designed not to
interfere with any data request being made by these devices as required by OBD II regulations.
The OnStar(R) advisor is unable to definitively detect the presence of these devices and will only
be able to inform the caller or requester of the unsuccessful or incomplete probe and may in some
cases refer the subscriber/requester to take the vehicle to a dealer for diagnosis of the concern.
When performing a diagnostic check for an unsuccessful or incomplete OnStar(R) diagnostic
probe, or for concerns regarding completeness of the OnStar(R) Vehicle Diagnostic (OVD) e-mail,
verify that an aftermarket device was not present at the time of the requested probe. Regarding the
OVD e-mail, if an aftermarket device is interfering (including a Scan Tool of any type), the e-mail
will consistently display a "yellow" indication in diagnostics section for all vehicle systems except
the OnStar(R) System and Tire Pressure data (not available on all vehicles) will not be displayed
(i.e. section is collapsed). Successful diagnostic probes and complete OVD e-mails will resume
following the removal or disconnecting of the off-board device.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 00-08-46-004C >
Jan > 08 > OnStar(R) - Re-establishing OnStar(R) Communications
Global Positioning System: All Technical Service Bulletins OnStar(R) - Re-establishing OnStar(R)
Communications
Bulletin No.: 00-08-46-004C
Date: January 17, 2008
INFORMATION
Subject: Re-establishing Communications with OnStar(R) Center After Battery Disconnect
Models: 2000-2008 GM Passenger Cars and Trucks (Including Saturn and Saab)
with Digital OnStar(R) (RPO UE1)
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 00-08-46-004B (Section 08 - Body and Accessories).
When servicing any of the above models and a battery cable is disconnected or power to the
OnStar(R) Vehicle Communication Interface Module (VCIM) is interrupted for any reason the
following procedure must be performed to verify proper Global Positioning System (GPS) function.
Never swap OnStar(R) Vehicle Communication Interface Modules (VCIM) from other vehicles.
Transfer of OnStar(R) modules from other vehicles should not be done. Each OnStar(R) module
has a unique identification number. The VCIM has a specific Station Identification (STID). This
identification number is used by the National Cellular Telephone Network and OnStar(R) systems
and is stored in General Motors Vehicle History files by VIN.
After completing ALL repairs to the vehicle you must perform the following procedure:
Move the vehicle into an open area of the service lot.
Sit in the vehicle with the engine running and the radio turned on for five minutes.
Press the OnStar(R) button in the vehicle.
When the OnStar(R) advisor answers ask the advisor to verify the current location of the vehicle.
If the vehicle location is different than the location the OnStar(R) advisor gives contact GM
Technical Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in
the diagnosis of a failed VCIM and, if appropriate, order a replacement part. Replacement parts are
usually shipped out within 24 hours, and a pre-paid return package label will be included for
returning the faulty part. By returning the faulty part, you will avoid a non-return core charge.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 05-08-46-009B >
Jun > 07 > OnStar(R) - Language Change Information
Global Positioning System: All Technical Service Bulletins OnStar(R) - Language Change
Information
Bulletin No.: 05-08-46-009B
Date: June 29, 2007
INFORMATION
Subject: Language Change for OnStar(R) System (U.S. and Canada Only)
Models: 2006-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2006-2008
HUMMER H2, H3 2006-2008 Saab 9-7X
with OnStar(R) (RPO UE1)
Built After and Including VIN Breakpoints Listed Below (2006 MY Only)
Attention:
This bulletin only applies to vehicles equipped with OnStar(R) Generation 6.1 or later with a Station
Identification (STID) Number in the following range: 16,000,000-17,000,000 or
20,000,000-21,999,999 or 23,500,001-26,000,000
Supercede:
This bulletin is being revised to update the service procedure and add a Canadian procedure.
Please discard Corporate Bulletin Numbers 05-08-46-009A and 05-08-46-008A (Section 08 - Body
and Accessories).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 05-08-46-009B >
Jun > 07 > OnStar(R) - Language Change Information > Page 14819
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 05-08-46-009B >
Jun > 07 > OnStar(R) - Language Change Information > Page 14820
Built After and Including the VIN Breakpoints shown.
The Generation (Gen) 6.1 OnStar(R) system found in these vehicles has the capability to change
the default English voice recognition to French or Spanish.
Changing the language of the OnStar(R) system will change the following features to the language
you select:
Voice recognition command prompts will be played in the language selected.
The voice recognition system will only recognize commands given in the selected language.
Once completed, this process completely changes all voice recognition and voice commands of the
OnStar(R) system. The process will need to be repeated in its entirety to change to a different
language, including English.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 05-08-46-009B >
Jun > 07 > OnStar(R) - Language Change Information > Page 14821
Method 1
Method 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Global Positioning System > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Global Positioning System: > 05-08-46-009B >
Jun > 07 > OnStar(R) - Language Change Information > Page 14822
Method 3
The Gen 6.1 version of OnStar(R) does not require the use of the Service Programming System
(SPS) to change the voice recognition system. However, there are three ways to change the
language.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Navigation System > Navigation Display >
Component Information > Technical Service Bulletins > Customer Interest for Navigation Display: > 07-08-44-010B > May >
09 > Navigation System - Display Locks Up/Error Messages
Navigation Display: Customer Interest Navigation System - Display Locks Up/Error Messages
TECHNICAL
Bulletin No.: 07-08-44-010B
Date: May 06, 2009
Subject: Navigation Radio Display Locks Up or Displays Error Messages (Update Navigation
Software)
Models:
2006-2007 Buick Lucerne 2007 Chevrolet Equinox 2007 GMC Acadia 2007 Pontiac Torrent 2007
Saturn OUTLOOK Equipped With Navigation Radio - RPO U3U (Equinox, Lucerne, Torrent) or
U3R or UZR (Acadia, OUTLOOK)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being canceled.
Please discard Corporate Bulletin Number 07-08-44-010A (Section 08 - Body & Accessories).
..............................................................................................................................................................
..................................................................................
For vehicles exhibiting the condition stated above, please refer to Corporate Bulletin Number
08-08-44-013C for the latest repair information.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Navigation System > Navigation Display >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Navigation Display: >
07-08-44-010B > May > 09 > Navigation System - Display Locks Up/Error Messages
Navigation Display: All Technical Service Bulletins Navigation System - Display Locks Up/Error
Messages
TECHNICAL
Bulletin No.: 07-08-44-010B
Date: May 06, 2009
Subject: Navigation Radio Display Locks Up or Displays Error Messages (Update Navigation
Software)
Models:
2006-2007 Buick Lucerne 2007 Chevrolet Equinox 2007 GMC Acadia 2007 Pontiac Torrent 2007
Saturn OUTLOOK Equipped With Navigation Radio - RPO U3U (Equinox, Lucerne, Torrent) or
U3R or UZR (Acadia, OUTLOOK)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being canceled.
Please discard Corporate Bulletin Number 07-08-44-010A (Section 08 - Body & Accessories).
..............................................................................................................................................................
..................................................................................
For vehicles exhibiting the condition stated above, please refer to Corporate Bulletin Number
08-08-44-013C for the latest repair information.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Navigation System > Navigation Module >
Component Information > Technical Service Bulletins > Customer Interest for Navigation Module: > 07-08-44-010B > May >
09 > Navigation System - Display Locks Up/Error Messages
Navigation Module: Customer Interest Navigation System - Display Locks Up/Error Messages
TECHNICAL
Bulletin No.: 07-08-44-010B
Date: May 06, 2009
Subject: Navigation Radio Display Locks Up or Displays Error Messages (Update Navigation
Software)
Models:
2006-2007 Buick Lucerne 2007 Chevrolet Equinox 2007 GMC Acadia 2007 Pontiac Torrent 2007
Saturn OUTLOOK Equipped With Navigation Radio - RPO U3U (Equinox, Lucerne, Torrent) or
U3R or UZR (Acadia, OUTLOOK)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being canceled.
Please discard Corporate Bulletin Number 07-08-44-010A (Section 08 - Body & Accessories).
..............................................................................................................................................................
..................................................................................
For vehicles exhibiting the condition stated above, please refer to Corporate Bulletin Number
08-08-44-013C for the latest repair information.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Navigation System > Navigation Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Navigation Module: >
07-08-44-010B > May > 09 > Navigation System - Display Locks Up/Error Messages
Navigation Module: All Technical Service Bulletins Navigation System - Display Locks Up/Error
Messages
TECHNICAL
Bulletin No.: 07-08-44-010B
Date: May 06, 2009
Subject: Navigation Radio Display Locks Up or Displays Error Messages (Update Navigation
Software)
Models:
2006-2007 Buick Lucerne 2007 Chevrolet Equinox 2007 GMC Acadia 2007 Pontiac Torrent 2007
Saturn OUTLOOK Equipped With Navigation Radio - RPO U3U (Equinox, Lucerne, Torrent) or
U3R or UZR (Acadia, OUTLOOK)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being canceled.
Please discard Corporate Bulletin Number 07-08-44-010A (Section 08 - Body & Accessories).
..............................................................................................................................................................
..................................................................................
For vehicles exhibiting the condition stated above, please refer to Corporate Bulletin Number
08-08-44-013C for the latest repair information.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Pedal Positioning System > Pedal Positioning
Sensor > Component Information > Service and Repair > Procedures
Pedal Positioning Sensor: Procedures
BRAKE PEDAL POSITION SENSOR CALIBRATION
CALIBRATION CRITERIA
The brake pedal position sensor (BPPS) receives a low reference signal and a 5-volt reference
signal from the BCM. Whenever the brake pedal is applied, the BPPS applies a variable voltage
signal to the BCM through the stop lamp switch signal circuit. The BPPS calibration must be
performed after the BPPS or body control module (BCM) have been serviced. The calibration
procedure will set BPPS home value. This value is used by the BCM to determine the action of the
driver applying the brake system and to provide this information to the vehicle subsystems via the
communication bus.
CALIBRATION PROCEDURE
- Install a scan tool.
- Turn ON the ignition, with the engine OFF.
- Select Diagnostics.
- Select the year.
- Select the vehicle type.
- Select BCM.
- Select Module Setup.
- Select the BPPS calibration procedure and follow the directions displayed on the screen.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Pedal Positioning System > Pedal Positioning
Sensor > Component Information > Service and Repair > Procedures > Page 14855
Pedal Positioning Sensor: Removal and Replacement
BRAKE PEDAL POSITION SENSOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Amplifier,
Sound System > Component Information > Diagrams
Amplifier: Diagrams
Entertainment/Communication Connector End Views
Amplifier C1
Amplifier C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Amplifier,
Sound System > Component Information > Diagrams > Page 14860
Amplifier C3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Amplifier,
Sound System > Component Information > Diagrams > Page 14861
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Amplifier,
Sound System > Component Information > Diagrams > Page 14862
Amplifier: Service and Repair
Amplifier Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Compact Disc
Player (CD) > Component Information > Service and Repair
Compact Disc Player (CD): Service and Repair
Compact Disc Care and Cleaning
Care of CDs
Handle CDs carefully. Store them in their original cases or other protective cases and away from
direct sunlight and dust. The CD player scans the bottom surface of the disc. If the surface of a CD
is damaged, such as cracked, broken, scratched, or wrinkled labeling, the CD will not play properly
or not at all. If the surface of a CD is soiled, take a soft, lint free cloth or dampen a clean, soft cloth
in a mild, neutral detergent solution mixed with water, and clean it. Make sure the wiping process
starts from the center to the edge. Do not touch the bottom side of a CD while handling it. This
could damage the surface. Pick up CDs by grasping the outer edges or the edge of the hole and
the outer edge.
Care of the CD Player
The use of CD lens cleaners for CD players is not advised, due to the risk of contaminating the
internal lens of the CD optics with lubricants.
Stuck CDs
Interrupting the battery power by pulling the fuse will sometimes release a stuck CD. If a CD is
stuck, and removed, inspect it for warps, cracks, etc. If the CD is damaged, do not replace the
radio.
Labeling CDs
Paper labels can eventually warp and wrinkle, and this will cause the disc to jam inside the CD
player. Try labeling the top of the discs with a soft magic marker instead.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Radio/Stereo >
Radio/Stereo Noise Filter > Component Information > Technical Service Bulletins > Customer Interest for Radio/Stereo
Noise Filter: > 07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R)
Radio/Stereo Noise Filter: Customer Interest Audio System - Noise When Using OnStar(R)
TECHNICAL
Bulletin No.: 07-08-46-002D
Date: July 29, 2009
Subject: Audio Whine Noise from Radio Speakers When Using OnStar(R) (Install Noise
Suppression Filter)
Models:
2007-2010 GM Passenger Cars and Trucks (Including Saturn) 2007-2010 HUMMER H2, H3
2007-2009 Saab 9-7X Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update the Warranty Information. Please discard
Corporate Bulletin Number 07-08-46-002C (Section 08 - Body and Accessories).
Condition
Some customers may comment on an audio whine coming from the radio speakers when using the
OnStar(R) system. The amplitude and frequency of the whine will change with an increase or
decrease in engine speed.
Cause
This condition may be caused by electrical noise on the OnStar(R) Vehicle Communication
Interface Module (VCIM) battery feed wire being passed to the microphone output pins at the radio.
Correction
Technicians are to install a noise suppression filter, P/N 1224205, into the OnStar(R) battery
voltage circuit, a few centimeters (inches) from the VCIM. The filter package has three attached
wires - a single yellow wire at one end with a yellow wire and a black wire at the other. Install the
single yellow wire side into the battery voltage circuit towards the VCIM. Install the remaining single
yellow wire into the battery voltage circuit toward the fuse and the black wire to ground.
Important The noise suppression filter is polarity sensitive. The filter is designed to be most
effective when the end with the capacitor ground is connected towards the source of the electrical
noise. Install the filter in this polarity first. If the noise level is still not satisfactory, try disconnecting
the capacitor ground. In some cases, if the first installation does not correct the noise, try reversing
the filter polarity (removing the filter, turning it end for end and then reinstalling it) and grounding
the capacitor lead.
Parts Information
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Radio/Stereo >
Radio/Stereo Noise Filter > Component Information > Technical Service Bulletins > Customer Interest for Radio/Stereo
Noise Filter: > 07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R) > Page 14875
Warranty Information (Saab U.S. Models)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Radio/Stereo >
Radio/Stereo Noise Filter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Radio/Stereo Noise Filter: > 07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R)
Radio/Stereo Noise Filter: All Technical Service Bulletins Audio System - Noise When Using
OnStar(R)
TECHNICAL
Bulletin No.: 07-08-46-002D
Date: July 29, 2009
Subject: Audio Whine Noise from Radio Speakers When Using OnStar(R) (Install Noise
Suppression Filter)
Models:
2007-2010 GM Passenger Cars and Trucks (Including Saturn) 2007-2010 HUMMER H2, H3
2007-2009 Saab 9-7X Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update the Warranty Information. Please discard
Corporate Bulletin Number 07-08-46-002C (Section 08 - Body and Accessories).
Condition
Some customers may comment on an audio whine coming from the radio speakers when using the
OnStar(R) system. The amplitude and frequency of the whine will change with an increase or
decrease in engine speed.
Cause
This condition may be caused by electrical noise on the OnStar(R) Vehicle Communication
Interface Module (VCIM) battery feed wire being passed to the microphone output pins at the radio.
Correction
Technicians are to install a noise suppression filter, P/N 1224205, into the OnStar(R) battery
voltage circuit, a few centimeters (inches) from the VCIM. The filter package has three attached
wires - a single yellow wire at one end with a yellow wire and a black wire at the other. Install the
single yellow wire side into the battery voltage circuit towards the VCIM. Install the remaining single
yellow wire into the battery voltage circuit toward the fuse and the black wire to ground.
Important The noise suppression filter is polarity sensitive. The filter is designed to be most
effective when the end with the capacitor ground is connected towards the source of the electrical
noise. Install the filter in this polarity first. If the noise level is still not satisfactory, try disconnecting
the capacitor ground. In some cases, if the first installation does not correct the noise, try reversing
the filter polarity (removing the filter, turning it end for end and then reinstalling it) and grounding
the capacitor lead.
Parts Information
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Radio/Stereo >
Radio/Stereo Noise Filter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Radio/Stereo Noise Filter: > 07-08-46-002D > Jul > 09 > Audio System - Noise When Using OnStar(R) > Page 14881
Warranty Information (Saab U.S. Models)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Radio/Stereo >
Remote Switch, Audio - Stereo > Component Information > Technical Service Bulletins > Audio - Inadvertent Steering
Wheel Button Activation
Remote Switch: Technical Service Bulletins Audio - Inadvertent Steering Wheel Button Activation
INFORMATION
Bulletin No.: 08-08-44-028
Date: August 28, 2008
Subject: Information On Inadvertent Steering Wheel Control (SWC) Button Press Causing Radio
Anomalies
Models: 2009 and Prior GM Passenger Cars and Trucks (Including Saturn) 2009 and Prior
HUMMER H2, H3 Models 2009 and Prior Saab 9-7X
All Vehicles with Steering Wheel Controls
This bulletin is being issued to provide a recommendation for vehicles with a customer concern of
the radio station tuning changing by itself, volume changing by itself, radio changing by itself, or
radio muting or going silent when driving and turning the steering wheel.
The switches on the right hand side of the steering wheel are easily pressed and may inadvertently
be pressed when turning the steering wheel.
These concerns may be affected by the location of the steering wheel controls.
Recommendation
Do Not Replace The Radio
1. Please determine that the switch controls on the steering wheel are functioning correctly.
2. Ask the customer if their hand was in close proximity to the steering wheel controls when the
condition happened. Explain to the customer that bumping the controls would have caused this
undesired action. Explain to the customer the proper use and function of the steering wheel
controls.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Speaker >
Component Information > Diagrams
Speaker: Diagrams
Entertainment/Communication Connector End Views
Speaker - Subwoofer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Speaker >
Component Information > Service and Repair > Radio Front Side Door Speaker Replacement
Speaker: Service and Repair Radio Front Side Door Speaker Replacement
Radio Front Side Door Speaker Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Speaker >
Component Information > Service and Repair > Radio Front Side Door Speaker Replacement > Page 14891
Speaker: Service and Repair Radio Front Side Door Upper Speaker Replacement
Radio Front Side Door Upper Speaker Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Speaker >
Component Information > Service and Repair > Radio Front Side Door Speaker Replacement > Page 14892
Speaker: Service and Repair Radio Rear Speaker Replacement
Radio Rear Speaker Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Radio, Stereo, and Compact Disc > Speaker >
Component Information > Service and Repair > Radio Front Side Door Speaker Replacement > Page 14893
Speaker: Service and Repair Radio Rear Side Door Speaker Replacement
Radio Rear Side Door Speaker Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Locations
Alarm Module: Locations
Immobilizer Component Views
Steering Column
1 - Turn Signal / Multifunction Switch 2 - Inflatable Restraint Steering Wheel Module Coil 3 Windshield Wiper / Washer Switch 4 - Theft Deterent Module 5 - Power Steering Motor 6 - Power
Steering Control Module (PSCM) 7 - Ignition Key Cylinder Lock Solenoid 8 - Ignition Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Locations > Page 14898
Theft Deterrent Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Locations > Page 14899
Alarm Module: Service and Repair
Theft Deterrent Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Central Control Module > Component Information > Locations
Central Control Module: Locations
Entertainment/Communication Component Views
Behind the I/P Cluster
1 - Instrument Panel cluster (IPC) 2 - I/P Trim 3 - Vehicle communication Interface Module (VCIM)
(UE1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Central Control Module > Component Information > Service and Repair > Communication Interface Module
Battery Replacement
Central Control Module: Service and Repair Communication Interface Module Battery Replacement
Communication Interface Module Battery Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Central Control Module > Component Information > Service and Repair > Communication Interface Module
Battery Replacement > Page 14905
Central Control Module: Service and Repair Communication Interface Module Replacement
Communication Interface Module Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > Recalls: > 10037 >
Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R)
Technical Service Bulletin # 10037 Date: 100420
Campaign - Unwanted Repeat Calls to OnStar(R)
CUSTOMER SATISFACTION
Bulletin No.: 10037
Date: April 20, 2010
Subject: 10037 - Unwanted Repeat Calls to OnStar(R)
Models:
2003 Buick LeSabre 2004-2006 Buick Rendezvous 2005 Buick LeSabre, Terraza 2005-2006 Buick
LaCrosse/Allure 2006-2008 Buick Lucerne 2008 Buick LaCrosse/Allure 2008-2009 Buick Enclave
2003 Cadillac CTS 2004 Cadillac Escalade 2004-2005 Cadillac CTS-V, Deville 2005 Cadillac
Escalade ESV, SRX 2005-2006 Cadillac STS 2005-2008 Cadillac CTS 2006-2008 Cadillac DTS
2007 Cadillac Escalade, Escalade EXT 2007-2008 Cadillac Escalade ESV 2008 Cadillac SRX,
STS 2002 Chevrolet Impala 2003-2008 Chevrolet Suburban 2003-2009 Chevrolet Silverado
2004-2008 Chevrolet Impala 2005 Chevrolet Colorado, Corvette, Malibu 2005-2006 Chevrolet
Uplander 2005-2008 Chevrolet Avalanche, Tahoe, TrailBlazer 2006 Chevrolet HHR, Monte Carlo
2006-2008 Chevrolet Equinox 2007-2008 Chevrolet Corvette 2008 Chevrolet HHR 2008-2009
Chevrolet Cobalt, Colorado, Malibu, Uplander 2003 GMC Envoy XL, Sierra, Yukon XL 2004-2008
GMC Yukon 2005-2009 GMC Sierra 2005-2008 GMC Yukon XL 2006-2008 GMC Envoy 2007
GMC Canyon 2007-2009 GMC Acadia 2006 HUMMER H2 2006-2008 HUMMER H3 2008
HUMMER H2 2003 Oldsmobile Silhouette 2005 Montana SV6 2005-2008 Pontiac Grand Prix 2006
Pontiac G6, Vibe 2007 Pontiac Montana SV6 2007-2008 Pontiac Solstice 2008 Pontiac G6, Torrent
2008-2009 Pontiac G5, G8 2009 Pontiac G3, Montana SV6 2005-2007 Saturn ION
2006-2009Saturn VUE 2007-2008 Saturn AURA, OUTLOOK, SKY Equipped with OnStar(R) (RPO
UE1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > Recalls: > 10037 >
Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14914
THIS PROGRAM IS IN EFFECT UNTIL APRIL 30, 2011.
Condition
Certain 2002-2009 model year vehicles equipped with OnStar(R) may have a condition in which
the vehicle's OnStar(R) system repeatedly makes incomplete calls to OnStar(R) without the
vehicle's occupant(s) input or knowledge. Customer initiated Blue Button call, Emergency calls,
and Automatic Crash Notification calls will also fail to establish a data connection with the
OnStar(R) Call Center. Eventually, the customer's call will connect as a voice only line and the
customer will be able to talk with an OnStar(R) advisor; however, the advisor will not get crucial
customer data such as vehicle identification and location.
Correction
Dealers/retailers are to replace the OnStar(R) module (VCIM).
Vehicles Involved
Involved are certain 2002-2009 model year vehicles equipped with OnStar(R), and built within
these VIN breakpoints:
Note:
Some model years/models have only one vehicle involved.
Important Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using
GMVIS (dealers/retailers using WINS) or the Investigate Vehicle History link (dealers/retailers using
GWM). Not all vehicles within the above breakpoints may be involved.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided to dealers/retailers through the GM GlobalConnect Recall Reports. Dealers/retailers
will not have a report available if they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this program is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
program.
Parts Information
US: OnStar(R) modules required for this program are to be obtained by contacting Autocraft
Electronics via the web at www.autocraft.com, and selecting the catalog item that contains bulletin
number 10037 (or PIC 4893B), or by calling 1-800-336-3998. Dealer must provide the VIN, R.O.
number, and the current vehicle mileage.
Canada: OnStar(R) modules required for this program are to be obtained by contacting MASS
Electronics at 1-877-410-6277. Dealer must provide the VIN, R.O. number, and the current vehicle
mileage.
DO NOT ORDER ONSTAR(R) MODULES FROM GENERAL MOTORS CUSTOMER CARE AND
AFTERSALES (GMCC&A;), SATURN SERVICE PARTS OPERATION (SSPO), OR THE
TECHNICAL ASSISTANCE CENTER (TAC).
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
1. Submit a claim using the table below.
2. Courtesy Transportation - For dealers/retailers using WINS, submit using normal labor code; for
dealers/retailers using GWM - submit as Net Item under the repair labor code.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > Recalls: > 10037 >
Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14915
* Dealers using WINs: Add 0.2 hours to the labor time for administrative allowance for the module
exchange.
Dealers using GWM: Submit 0.2 hours administrative allowance under "Administration Time" for
the module exchange.
** The $25 represents the additional net amount allowed for the module exchange.
*** Dealers are to claim only administrative allowance of 0.2 hours when the module is replaced by
Masscomp's Mobile Unit. Dealers using WINS should submit the 0.2 hours administrative
allowance in labor time. Dealer using GWM should submit the 0.2 hours administrative allowance
under Administrative Time.
Customer Notification
OnStar will notify customers of this program on their vehicle.
Dealer Program Responsibility
All unsold new vehicles in dealers'/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through April 30, 2011.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for
your use in contacting customers. Program follow-up cards should not be used for this purpose,
since the customer may not as yet have received the notification letter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > Recalls: > 10037 >
Apr > 10 > Campaign - Unwanted Repeat Calls to OnStar(R) > Page 14916
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through April 30, 2011, you must take the steps necessary to be sure
the program correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Service Procedure
Note Do NOT replace the inside rear view mirror in tandem with this concern. The mirror has no
bearing on this specific issue.
1. Remove the OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module (VCIM)
in SI). Refer to SI for module removal instructions.
Note Inform customer that all Bluetooth devices must be paired with the new VCIM. Bluetooth
devices that have not been paired to the new VCIM will not function properly.
2. Install the new OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module
(VCIM) in SI). Refer to SI for module installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to
OnStar(R)
Technical Service Bulletin # 10037 Date: 100420
Campaign - Unwanted Repeat Calls to OnStar(R)
CUSTOMER SATISFACTION
Bulletin No.: 10037
Date: April 20, 2010
Subject: 10037 - Unwanted Repeat Calls to OnStar(R)
Models:
2003 Buick LeSabre 2004-2006 Buick Rendezvous 2005 Buick LeSabre, Terraza 2005-2006 Buick
LaCrosse/Allure 2006-2008 Buick Lucerne 2008 Buick LaCrosse/Allure 2008-2009 Buick Enclave
2003 Cadillac CTS 2004 Cadillac Escalade 2004-2005 Cadillac CTS-V, Deville 2005 Cadillac
Escalade ESV, SRX 2005-2006 Cadillac STS 2005-2008 Cadillac CTS 2006-2008 Cadillac DTS
2007 Cadillac Escalade, Escalade EXT 2007-2008 Cadillac Escalade ESV 2008 Cadillac SRX,
STS 2002 Chevrolet Impala 2003-2008 Chevrolet Suburban 2003-2009 Chevrolet Silverado
2004-2008 Chevrolet Impala 2005 Chevrolet Colorado, Corvette, Malibu 2005-2006 Chevrolet
Uplander 2005-2008 Chevrolet Avalanche, Tahoe, TrailBlazer 2006 Chevrolet HHR, Monte Carlo
2006-2008 Chevrolet Equinox 2007-2008 Chevrolet Corvette 2008 Chevrolet HHR 2008-2009
Chevrolet Cobalt, Colorado, Malibu, Uplander 2003 GMC Envoy XL, Sierra, Yukon XL 2004-2008
GMC Yukon 2005-2009 GMC Sierra 2005-2008 GMC Yukon XL 2006-2008 GMC Envoy 2007
GMC Canyon 2007-2009 GMC Acadia 2006 HUMMER H2 2006-2008 HUMMER H3 2008
HUMMER H2 2003 Oldsmobile Silhouette 2005 Montana SV6 2005-2008 Pontiac Grand Prix 2006
Pontiac G6, Vibe 2007 Pontiac Montana SV6 2007-2008 Pontiac Solstice 2008 Pontiac G6, Torrent
2008-2009 Pontiac G5, G8 2009 Pontiac G3, Montana SV6 2005-2007 Saturn ION
2006-2009Saturn VUE 2007-2008 Saturn AURA, OUTLOOK, SKY Equipped with OnStar(R) (RPO
UE1)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to
OnStar(R) > Page 14922
THIS PROGRAM IS IN EFFECT UNTIL APRIL 30, 2011.
Condition
Certain 2002-2009 model year vehicles equipped with OnStar(R) may have a condition in which
the vehicle's OnStar(R) system repeatedly makes incomplete calls to OnStar(R) without the
vehicle's occupant(s) input or knowledge. Customer initiated Blue Button call, Emergency calls,
and Automatic Crash Notification calls will also fail to establish a data connection with the
OnStar(R) Call Center. Eventually, the customer's call will connect as a voice only line and the
customer will be able to talk with an OnStar(R) advisor; however, the advisor will not get crucial
customer data such as vehicle identification and location.
Correction
Dealers/retailers are to replace the OnStar(R) module (VCIM).
Vehicles Involved
Involved are certain 2002-2009 model year vehicles equipped with OnStar(R), and built within
these VIN breakpoints:
Note:
Some model years/models have only one vehicle involved.
Important Dealers/retailers are to confirm vehicle eligibility prior to beginning repairs by using
GMVIS (dealers/retailers using WINS) or the Investigate Vehicle History link (dealers/retailers using
GWM). Not all vehicles within the above breakpoints may be involved.
For dealers/retailers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and will
be provided to dealers/retailers through the GM GlobalConnect Recall Reports. Dealers/retailers
will not have a report available if they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this program is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
program.
Parts Information
US: OnStar(R) modules required for this program are to be obtained by contacting Autocraft
Electronics via the web at www.autocraft.com, and selecting the catalog item that contains bulletin
number 10037 (or PIC 4893B), or by calling 1-800-336-3998. Dealer must provide the VIN, R.O.
number, and the current vehicle mileage.
Canada: OnStar(R) modules required for this program are to be obtained by contacting MASS
Electronics at 1-877-410-6277. Dealer must provide the VIN, R.O. number, and the current vehicle
mileage.
DO NOT ORDER ONSTAR(R) MODULES FROM GENERAL MOTORS CUSTOMER CARE AND
AFTERSALES (GMCC&A;), SATURN SERVICE PARTS OPERATION (SSPO), OR THE
TECHNICAL ASSISTANCE CENTER (TAC).
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers/retailers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
1. Submit a claim using the table below.
2. Courtesy Transportation - For dealers/retailers using WINS, submit using normal labor code; for
dealers/retailers using GWM - submit as Net Item under the repair labor code.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to
OnStar(R) > Page 14923
* Dealers using WINs: Add 0.2 hours to the labor time for administrative allowance for the module
exchange.
Dealers using GWM: Submit 0.2 hours administrative allowance under "Administration Time" for
the module exchange.
** The $25 represents the additional net amount allowed for the module exchange.
*** Dealers are to claim only administrative allowance of 0.2 hours when the module is replaced by
Masscomp's Mobile Unit. Dealers using WINS should submit the 0.2 hours administrative
allowance in labor time. Dealer using GWM should submit the 0.2 hours administrative allowance
under Administrative Time.
Customer Notification
OnStar will notify customers of this program on their vehicle.
Dealer Program Responsibility
All unsold new vehicles in dealers'/retailers' possession and subject to this program must be held
and inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers/retailers are to service all vehicles subject to this program at no charge to customers,
regardless of mileage, age of vehicle, or ownership, through April 30, 2011.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer/retailer listing, are to be contacted by the
dealer/retailer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for
your use in contacting customers. Program follow-up cards should not be used for this purpose,
since the customer may not as yet have received the notification letter.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Communications Control Module: > 10037 > Apr > 10 > Campaign - Unwanted Repeat Calls to
OnStar(R) > Page 14924
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
dealership/facility for service through April 30, 2011, you must take the steps necessary to be sure
the program correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Service Procedure
Note Do NOT replace the inside rear view mirror in tandem with this concern. The mirror has no
bearing on this specific issue.
1. Remove the OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module (VCIM)
in SI). Refer to SI for module removal instructions.
Note Inform customer that all Bluetooth devices must be paired with the new VCIM. Bluetooth
devices that have not been paired to the new VCIM will not function properly.
2. Install the new OnStar(R) module (referred to as the Communication Interface Module (CIM) or
Vehicle Communication Interface Module
(VCIM) in SI). Refer to SI for module installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing
Impaired
Communications Control Module: All Technical Service Bulletins OnStar(R) - Availability for
Hearing Impaired
INFORMATION
Bulletin No.: 06-08-46-005B
Date: February 11, 2010
Subject: Availability of OnStar(R) for Hearing Impaired
Models:
2007-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn and Saab) Except 2007
Cadillac CTS Except 2007-2008 HUMMER H2, H2 SUT Except 2007 Pontiac Montana SV6 Except
2007-2010 Pontiac Vibe Except 2007 Saturn ION, VUE Except 2008 Saturn Astra
Supercede: This bulletin is being revised to add a Note regarding 2009 Bluetooth(R)-equipped
vehicles, additional models and model years. Please discard Corporate Bulletin Number
06-08-46-005A (Section 08 - Body and Accessories).
Important This service bulletin is not applicable to 'GM of Canada' dealers and retailers.
Note
On 2009 and newer model year vehicles equipped with the Bluetooth(R) feature (option code
UPF), when up-fitted with TTY capabilities, the Bluetooth(R) feature will be disabled.
OnStar with Text Telephone Capability (TTY)
General Motors is pleased to announce that the safety and security of OnStar is now available to
our deaf, hard of hearing and speech impaired customers. The current vehicles listed above, as
well as forthcoming vehicles equipped with OnStar hardware version 7.0 or higher, have the ability
to utilize texting telephones. Vehicle specific TTY capability can be determined by utilizing the VIN
lookup Tool. Additional information may be found by referring to www.onstar.com/tty.
TTY equipment allows people who are deaf, hard of hearing or speech impaired, in-vehicle access
to 911 and basic OnStar(R) services by pressing the OnStar(R) blue button or red emergency
button. The keypad provides a means to communicate by allowing customers to type messages
back and forth, with an OnStar(R) advisor or other party when using the OnStar(R) Hands-Free
Calling feature. A TTY is required at both ends of the conversation in order to communicate.
OnStar(R) Turn by Turn Navigation and Virtual Advisor are not available with the addition of TTY.
The Reimbursement Program
This equipment will be made available to eligible customers through GM Mobility and OnStar(R).
Under this program, the customer must complete a GM Mobility application form. To take
advantage of the program, vehicles must be adapted at the time of delivery for purchase / lease
and a dealer claim ($1,000 Maximum per GM Mobility guidelines) with the application form
submitted to GM Mobility. Saab dealers must fax documents. GM Dealers will receive electronic
reimbursement directly from GM Mobility. Saab dealers will receive a check directly from
OnStar(R). Additional questions or concerns should be directed to the OnStar Dealer Center.
How to Order
To order the dealer installed kit, contact AutoCraft Electronics or via the web at www.autocraft.com.
The kit consists of an OnStar Interface Module, a Dial Pad (for making calls), OTIM wiring harness,
the TTY device, installation/Tech 2(R) programming instructions and owner's guide.
Warranty Information
The Ultra-Tec Compact C TTY device is manufactured by an independent manufacturer and is
covered by the manufacturer's warranty. It is not covered under the GM New Vehicle Limited
Warranty. All other parts (OTIM, dial pad and OTIM wiring harness) are covered by the standard
GM new vehicle parts and labor warranty. Replacement parts are available through AutoCraft
Electronics. Contact AutoCraft Electronics or via the web.
Warranty claims for the OTIM, dial pad and OTIM wiring harness should be submitted through
normal warranty procedures using a sublet warranty claim with GM Labor Operation R5140.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > All Technical
Service Bulletins for Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing
Impaired > Page 14929
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing Impaired
Communications Control Module: All Technical Service Bulletins OnStar(R) - Availability for
Hearing Impaired
INFORMATION
Bulletin No.: 06-08-46-005B
Date: February 11, 2010
Subject: Availability of OnStar(R) for Hearing Impaired
Models:
2007-2010 GM Passenger Cars and Light Duty Trucks (Including Saturn and Saab) Except 2007
Cadillac CTS Except 2007-2008 HUMMER H2, H2 SUT Except 2007 Pontiac Montana SV6 Except
2007-2010 Pontiac Vibe Except 2007 Saturn ION, VUE Except 2008 Saturn Astra
Supercede: This bulletin is being revised to add a Note regarding 2009 Bluetooth(R)-equipped
vehicles, additional models and model years. Please discard Corporate Bulletin Number
06-08-46-005A (Section 08 - Body and Accessories).
Important This service bulletin is not applicable to 'GM of Canada' dealers and retailers.
Note
On 2009 and newer model year vehicles equipped with the Bluetooth(R) feature (option code
UPF), when up-fitted with TTY capabilities, the Bluetooth(R) feature will be disabled.
OnStar with Text Telephone Capability (TTY)
General Motors is pleased to announce that the safety and security of OnStar is now available to
our deaf, hard of hearing and speech impaired customers. The current vehicles listed above, as
well as forthcoming vehicles equipped with OnStar hardware version 7.0 or higher, have the ability
to utilize texting telephones. Vehicle specific TTY capability can be determined by utilizing the VIN
lookup Tool. Additional information may be found by referring to www.onstar.com/tty.
TTY equipment allows people who are deaf, hard of hearing or speech impaired, in-vehicle access
to 911 and basic OnStar(R) services by pressing the OnStar(R) blue button or red emergency
button. The keypad provides a means to communicate by allowing customers to type messages
back and forth, with an OnStar(R) advisor or other party when using the OnStar(R) Hands-Free
Calling feature. A TTY is required at both ends of the conversation in order to communicate.
OnStar(R) Turn by Turn Navigation and Virtual Advisor are not available with the addition of TTY.
The Reimbursement Program
This equipment will be made available to eligible customers through GM Mobility and OnStar(R).
Under this program, the customer must complete a GM Mobility application form. To take
advantage of the program, vehicles must be adapted at the time of delivery for purchase / lease
and a dealer claim ($1,000 Maximum per GM Mobility guidelines) with the application form
submitted to GM Mobility. Saab dealers must fax documents. GM Dealers will receive electronic
reimbursement directly from GM Mobility. Saab dealers will receive a check directly from
OnStar(R). Additional questions or concerns should be directed to the OnStar Dealer Center.
How to Order
To order the dealer installed kit, contact AutoCraft Electronics or via the web at www.autocraft.com.
The kit consists of an OnStar Interface Module, a Dial Pad (for making calls), OTIM wiring harness,
the TTY device, installation/Tech 2(R) programming instructions and owner's guide.
Warranty Information
The Ultra-Tec Compact C TTY device is manufactured by an independent manufacturer and is
covered by the manufacturer's warranty. It is not covered under the GM New Vehicle Limited
Warranty. All other parts (OTIM, dial pad and OTIM wiring harness) are covered by the standard
GM new vehicle parts and labor warranty. Replacement parts are available through AutoCraft
Electronics. Contact AutoCraft Electronics or via the web.
Warranty claims for the OTIM, dial pad and OTIM wiring harness should be submitted through
normal warranty procedures using a sublet warranty claim with GM Labor Operation R5140.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Communications Control Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Communications Control Module: > 06-08-46-005B > Feb > 10 > OnStar(R) - Availability for Hearing Impaired >
Page 14935
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: >
05-08-46-004C > Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned
Emergency Contact Module: Customer Interest OnStar(R) - Number Incorrect/Incorrectly Assigned
INFORMATION
Bulletin No.: 05-08-46-004C
Date: December 23, 2010
Subject: OnStar(R) Phone Number Concerns (Phone Number Incorrect/Assigned to Another
Vehicle/Phone) That Occur During Diagnosis of OnStar(R) System
Models:
2000-2011 GM Passenger Cars and Trucks Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update model years up to 2011. Please discard
Corporate Bulletin Number 05-08-46-004B (Section 08 - Body and Accessories).
During diagnosis of an OnStar(R) concern, the technician may be told that the OnStar(R) phone
number is incorrect or tied to another vehicle and/or phone of some kind. To resolve these
concerns, the Tech 2(R) with software version 22.005 (or higher), has the capability to change the
OnStar(R) phone number.
Service Procedure
1. With the Tech 2(R), build the vehicle to specifications within the Diagnostics area of the Tech
2(R). 2. For vehicles with physical-based diagnostics - under Body, go to the OnStar(R) section.
Then select the Special Functions menu.
For vehicles with functional-based diagnostics - under Body and Accessories, go to the Cellular
Communication section. Select Module Setup and then Vehicle Communication Interface Module.
3. Locate the Program Phone Number prompt and select it. The original phone number will be
displayed on the Tech 2(R) screen. 4. Contact the OnStar(R) team at the GM Technical Assistance
Center (TAC) to obtain a new phone number. 5. Highlight the digits of the phone number one at a
time and enter the new phone number using the number keys on the Tech 2(R). 6. Press the Soft
key at the base of the screen for Done once these numbers have been changed on the screen. 7.
Press the Soft key for Done again. The area code or new phone number has now been
programmed into the phone. 8. Cycle the ignition to Off and open the driver's door. 9. Press the
blue OnStar(R) button to make sure that a normal connection can be made to the OnStar(R) call
center. If applicable, make sure the
Hands-Free Calling (HFC) works properly by making a phone call.
10. If the system is working properly, fax or voicemail a case closing into the OnStar(R) team at
TAC with the results. Dealers in Canada should
submit case closing information through the GM infoNET.
Please follow this diagnostic process thoroughly and complete each step. If the condition exhibited
is resolved WITHOUT completing every step, the remaining steps do not need to be performed. If
the procedure above does not resolve the condition, you must contact TAC for further assistance.
This diagnostic approach was developed specifically for this condition and should not automatically
be used for other vehicles with similar symptoms.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: >
05-08-46-004C > Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned > Page 14944
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: >
02-08-46-006C > Jan > 08 > OnStar(R) - Incorrect GPS Position Reported During Call
Emergency Contact Module: Customer Interest OnStar(R) - Incorrect GPS Position Reported
During Call
Bulletin No.: 02-08-46-006C
Date: January 08, 2008
INFORMATION
Subject: Incorrect OnStar(R) Global Positioning System (GPS) Location Reported During
OnStar(R) Call
Models: 2000-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R)
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
02-08-46-006B (Section 08 - Body and Accessories).
A small number of the above-mentioned vehicles may exhibit a condition in which the vehicle
reports an inaccurate location to the OnStar(R) Call Center. This condition can only be identified
via a button press to the OnStar(R) Call Center by the customer. Call Center personnel will be able
to identify this inaccurate location condition. Customers will then be notified through the mail by
OnStar(R) if their vehicle exhibits this condition. Once this condition has been identified OnStar(R)
will instruct the customer to return to the dealership to have this condition corrected.
It is not necessary to reconfigure the vehicle after the following procedure.
In order to correct this condition you must cycle power to the OnStar(R) system. This can be done
by either removing the fuses powering the OnStar(R) system or disconnecting the OnStar(R)
module (VCIM) from the vehicle. As a last resort you can disconnect the vehicle's battery.
The power needs to be removed from the system for approximately 15 minutes.
After completing this procedure the vehicle should be taken to an area with an unobstructed view of
the sky. The vehicle should be kept running for approximately 10 minutes to allow the vehicle to
reacquire the global positioning system (GPS). Then contact the OnStar(R) Call Center via the blue
OnStar(R) button and ask the advisor to verify the GPS position.
If the OnStar(R) advisor still has an inaccurate GPS location refer to the Navigation Systems and
Cellular Communications sub-sections in the Service Manual in order to diagnose and repair the
concern. If the normal diagnostics lead to module replacement you will need to contact Technical
Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in the
diagnosis and if appropriate order a replacement part. Replacement parts are usually shipped out
within 24 hours and a pre-paid return package label will be included for returning the faulty part. By
returning the faulty part you will avoid a significant non-return core charge.
Warranty Information (excluding Saab US Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab US Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: >
02-08-46-006C > Jan > 08 > OnStar(R) - Incorrect GPS Position Reported During Call > Page 14949
For vehicles repaired under warranty use, the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: >
02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues
Emergency Contact Module: Customer Interest OnStar(R) - Loss of GPS Signal/Hands Free Issues
Bulletin No.: 02-08-46-007C
Date: November 19, 2007
INFORMATION
Subject: Information on OnStar(R) System - Possible Loss of GPS Signal, Hands-Free Calling
Minutes Expire Prematurely and/or Inability to Add Hands-Free Calling Minutes
Models: 2001-2008 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R) System (RPO UE1)
Supercede:
This bulletin is being revised to add the 2008 model year, warranty information and to provide GPS
signal recovery steps (under Dealer Action heading) to do PRIOR to determining if the VIU/VCIM
needs replacement. Please discard Corporate Bulletin Number 02-08-46-007B (Section 08 - Body
& Accessories).
If the vehicle currently has analog-upgradable OnStar(R) hardware, then the customer should be
made aware of the digital upgrade program per the latest version of Service Bulletin #
05-08-46-006. Any analog OnStar system that is not upgraded prior to the end of 2007 will be
deactivated due to the upcoming phase-out of the analog cellular network in the U.S. and Canada.
If the vehicle has recently been upgraded or has had a service replacement unit installed, this
bulletin may not be applicable.
Certain 2001-2008 model year vehicles equipped with OnStar(R) may exhibit a condition with the
Global Positioning System (GPS) that causes inaccuracies in the GPS clock. The GPS system is
internal to the OnStar(R) Vehicle Interface Unit (VIU) or the Vehicle Communication Interface
Module (VCIM). This inaccuracy can result in a symptom where the OnStar(R) Call Center is
unable to obtain an accurate GPS signal, hands-Free Calling minutes expire prematurely and/or
the inability to add Hands-Free calling minutes.
Customer Notification
OnStar(R) will notify the customer by mail with instructions to contact their dealership service
department.
Dealer Action
Not all vehicles will require VIU/VCIM replacement.
The GPS signal in some vehicles may be recoverable. To determine if the signal is recoverable,
simply connect the Tech2(R) and using the GPS information data display option, observe the GPS
date and time. If the date/time stamps are equal to a date approximately 19 years in the future, the
GPS clock has exceeded its capacity and the VIU/VCIM will need to be replaced. If the date/time
stamp is in the past or near future, the GPS clock has simply generated an inaccurate value and
may be recoverable by performing the following power-up reset.
To initiate a power-up reset, battery voltage (batt. +) must be removed from the VIU/VCIM. The
preferred methods, in order, of initiating the reset are outlined below.
Remove the fuse that supplies Battery positive (Batt. +) voltage to the module (refer to the
applicable Service Information schematics for the appropriate fuse).
The next preferred method is to remove the connector to the OnStar(R) unit that Batt + is
contained.
The least preferable method is to remove the negative terminal of the vehicle battery. This will not
only initiate the power-up reset, but it may also result in the loss of radio presets and other stored
personalization information/settings in other modules as well.
After initiating the power-up reset, the GPS data will be set to the defaulted date and time and will
require an acquisition of the GPS signal in order to gain the proper date and time.
Acquiring the GPS signal requires running the vehicle in an open/unobstructed view of the sky.
First, contact OnStar(R) Technical Support by pressing the blue button. Allow the OnStar(R)
Technical Advisor to activate the GPS recovery process. This should take approximately 10
minutes. Continue to
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: >
02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues > Page 14954
monitor the Tech2(R) for the current time and date. REMINDER - Keep in mind that the time
displayed on the Tech2(R) is in Greenwich Mean Time (GMT) and the offset is based on the time
zones relationship to GMT.
If replacement of the VIU/VCIM is necessary, you MUST reconfigure the OnStar® system. Failure
to reconfigure the system will result in an additional customer visit for repair. OnStar® VIU,
Generations 2 and 3, will require the technician to press the blue OnStar® button to reconfigure the
vehicle with an OnStar® advisor.
OnStar(R) VCIM, Generations 4-7 will require the technician to reconfigure the vehicle with the use
of the TIS2WEB and SPS applications (pass thru only), along with the Tech2(R).
The configuration and set-up procedure is a two-step process that must be completed step-by-step
without interruption or delay in between each step. This procedure enables an automated activation
without a button press by the technician to the OnStar(R) Call Center. Following this procedure, it
may take up to 24 hours for all OnStar(R) services to be fully activated.
How to Order Parts
If the OnStar(R) GPS date/time stamp is non-recoverable and the unit needs to be replaced,
dealers in the U.S. should contact Autocraft Electronics select the catalog item that contains this
bulletin number. Canadian dealers should contact MASS Electronics.
Dealers DO NOT need to call the GM Technical Assistance Center (TAC) for replacement
approval. Autocraft Electronics and MASS Electronics will be responsible for verifying that the
subject vehicle is a candidate for a replacement VIU/VCIM.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > Customer Interest: >
02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free Issues > Page 14955
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 05-08-46-004C > Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Number
Incorrect/Incorrectly Assigned
INFORMATION
Bulletin No.: 05-08-46-004C
Date: December 23, 2010
Subject: OnStar(R) Phone Number Concerns (Phone Number Incorrect/Assigned to Another
Vehicle/Phone) That Occur During Diagnosis of OnStar(R) System
Models:
2000-2011 GM Passenger Cars and Trucks Equipped with OnStar(R) (RPO UE1)
Supercede: This bulletin is being revised to update model years up to 2011. Please discard
Corporate Bulletin Number 05-08-46-004B (Section 08 - Body and Accessories).
During diagnosis of an OnStar(R) concern, the technician may be told that the OnStar(R) phone
number is incorrect or tied to another vehicle and/or phone of some kind. To resolve these
concerns, the Tech 2(R) with software version 22.005 (or higher), has the capability to change the
OnStar(R) phone number.
Service Procedure
1. With the Tech 2(R), build the vehicle to specifications within the Diagnostics area of the Tech
2(R). 2. For vehicles with physical-based diagnostics - under Body, go to the OnStar(R) section.
Then select the Special Functions menu.
For vehicles with functional-based diagnostics - under Body and Accessories, go to the Cellular
Communication section. Select Module Setup and then Vehicle Communication Interface Module.
3. Locate the Program Phone Number prompt and select it. The original phone number will be
displayed on the Tech 2(R) screen. 4. Contact the OnStar(R) team at the GM Technical Assistance
Center (TAC) to obtain a new phone number. 5. Highlight the digits of the phone number one at a
time and enter the new phone number using the number keys on the Tech 2(R). 6. Press the Soft
key at the base of the screen for Done once these numbers have been changed on the screen. 7.
Press the Soft key for Done again. The area code or new phone number has now been
programmed into the phone. 8. Cycle the ignition to Off and open the driver's door. 9. Press the
blue OnStar(R) button to make sure that a normal connection can be made to the OnStar(R) call
center. If applicable, make sure the
Hands-Free Calling (HFC) works properly by making a phone call.
10. If the system is working properly, fax or voicemail a case closing into the OnStar(R) team at
TAC with the results. Dealers in Canada should
submit case closing information through the GM infoNET.
Please follow this diagnostic process thoroughly and complete each step. If the condition exhibited
is resolved WITHOUT completing every step, the remaining steps do not need to be performed. If
the procedure above does not resolve the condition, you must contact TAC for further assistance.
This diagnostic approach was developed specifically for this condition and should not automatically
be used for other vehicles with similar symptoms.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab Models)
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 05-08-46-004C > Dec > 10 > OnStar(R) - Number Incorrect/Incorrectly Assigned
> Page 14961
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 02-08-44-007D > May > 09 > OnStar(R) - Negative Impact of Cloth/Vinyl Roofs
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Negative Impact of
Cloth/Vinyl Roofs
INFORMATION
Bulletin No.: 02-08-44-007D
Date: May 12, 2009
Subject: Negative Impact of Dealer-Installed Cloth/Vinyl Roofs on XM Radio and/or OnStar(R)
Systems
Models:
2002-2009 Passenger Cars and Trucks (Including Saturn) 2003-2009 HUMMER H2 2006-2009
HUMMER H3 2005-2009 Saab 9-7X with XM Radio (RPO U2K) and/or OnStar(R) (RPO UE1)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
include the 2009 model year. Please discard Corporate Bulletin Number 02-08-44-007C (Section
08 - Body and Accessories).
..............................................................................................................................................................
..................................................................................
Dealers should not install a cloth or vinyl roof on vehicles that have been ordered with the XM radio
option (RPO U2K) and/or OnStar(R) (RPO UE1). The performance of these systems may be
negatively impacted by the installation of the cloth/vinyl roof. Additionally, water leaks may result
from installing a cloth or vinyl roof on vehicles with roof-mounted antenna systems. Relocating the
antenna to another spot on the vehicle exterior, in order to install a cloth or vinyl roof, is not advised
either. The performance of the OnStar(R) and XM Radio antennas has been optimized for their
current locations. Relocating the antennas may result in a performance degradation.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 06-08-46-008C > Sep > 08 > OnStar(R) - Analog/Digital System Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Analog/Digital System
Information
INFORMATION
Bulletin No.: 06-08-46-008C
Date: September 18, 2008
Subject: Information on OnStar(R) Dual-Mode (Analog/Digital) Systems
Models
Supercede:
This bulletin is being revised to correct the model year range for the Chevrolet Impala and Monte
Carlo and update the reference to GM Dealerworld. Please discard Corporate Bulletin Number
06-08-46-008B (Section 08 - Body and Accessories).
All 2000-2003 model year vehicles equipped with OnStar® from the list above were built with
Analog/Digital-Ready OnStar(R) Hardware. Some of these vehicles may have been upgraded to
Dual-Mode (Analog/Digital).
Certain 2004-2005 model year vehicles equipped with OnStar(R) from the list above may have
been either:
^ Originally built at the factory with Dual-Mode (Analog/Digital) OnStar(R) Hardware with
Dual-Mode (Analog/Digital) OnStar(R) Hardware
OR
^ Upgraded to Dual-Mode (Analog/Digital) Hardware
All 2006 model year and newer vehicles equipped with OnStar(R) were built at the factory with
Dual-Mode (Analog/Digital) OnStar(R) Hardware.
If a vehicle has Dual-Mode (Analog/Digital) OnStar(R) Hardware, then the system is capable of
operating on both the analog and digital cellular
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 06-08-46-008C > Sep > 08 > OnStar(R) - Analog/Digital System Information >
Page 14970
networks, and will not require an upgrade in connection with the cellular industry's transition to the
digital network.
In order to verify the type of OnStar(R) Hardware in a vehicle, type the VIN into the VIN look-up
tool, which is available at the OnStar(R) Online Enrollment website within GM GlobalConnect (for
U.S. dealers) or InfoNet (for Canadian dealers).
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 08-08-46-004 > Aug > 08 > OnStar(R) - Aftermarket Device Interference
Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Aftermarket Device
Interference Information
INFORMATION
Bulletin No.: 08-08-46-004
Date: August 14, 2008
Subject: Information on Aftermarket Device Interference with OnStar(R) Diagnostic Services
Models: 2009 and Prior GM Passenger Car and Truck (including Saturn) 2009 and Prior HUMMER
H2, H3 Models 2009 and Prior Saab 9-7X
with OnStar(R) (RPO UE1)
This bulletin is being issued to provide dealer service personnel with information regarding
aftermarket devices connected to the Diagnostic Link Connector (DLC) and the impact to
OnStar(R) diagnostic probes and Vehicle Diagnostic e-mails.
Certain aftermarket devices, when connected to the Diagnostic Link Connector, such as, but not
limited to, Scan Tools, Trip Computers, Fuel Economy Analyzers and Insurance Tracking Devices,
interfere with OnStar's ability to perform a diagnostic probe when requested (via a blue button call)
by a subscriber. These devices also prohibit the ability to gather diagnostic and tire pressure data
for a subscriber's scheduled OnStar(R) Vehicle Diagnostic (OVD) e-mail.
These aftermarket devices utilize the Vehicles serial data bus to perform data requests and/or
information gathering. When these devices are requesting data, OnStar(R) is designed not to
interfere with any data request being made by these devices as required by OBD II regulations.
The OnStar(R) advisor is unable to definitively detect the presence of these devices and will only
be able to inform the caller or requester of the unsuccessful or incomplete probe and may in some
cases refer the subscriber/requester to take the vehicle to a dealer for diagnosis of the concern.
When performing a diagnostic check for an unsuccessful or incomplete OnStar(R) diagnostic
probe, or for concerns regarding completeness of the OnStar(R) Vehicle Diagnostic (OVD) e-mail,
verify that an aftermarket device was not present at the time of the requested probe. Regarding the
OVD e-mail, if an aftermarket device is interfering (including a Scan Tool of any type), the e-mail
will consistently display a "yellow" indication in diagnostics section for all vehicle systems except
the OnStar(R) System and Tire Pressure data (not available on all vehicles) will not be displayed
(i.e. section is collapsed). Successful diagnostic probes and complete OVD e-mails will resume
following the removal or disconnecting of the off-board device.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 00-08-46-004C > Jan > 08 > OnStar(R) - Re-establishing OnStar(R)
Communications
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Re-establishing OnStar(R)
Communications
Bulletin No.: 00-08-46-004C
Date: January 17, 2008
INFORMATION
Subject: Re-establishing Communications with OnStar(R) Center After Battery Disconnect
Models: 2000-2008 GM Passenger Cars and Trucks (Including Saturn and Saab)
with Digital OnStar(R) (RPO UE1)
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 00-08-46-004B (Section 08 - Body and Accessories).
When servicing any of the above models and a battery cable is disconnected or power to the
OnStar(R) Vehicle Communication Interface Module (VCIM) is interrupted for any reason the
following procedure must be performed to verify proper Global Positioning System (GPS) function.
Never swap OnStar(R) Vehicle Communication Interface Modules (VCIM) from other vehicles.
Transfer of OnStar(R) modules from other vehicles should not be done. Each OnStar(R) module
has a unique identification number. The VCIM has a specific Station Identification (STID). This
identification number is used by the National Cellular Telephone Network and OnStar(R) systems
and is stored in General Motors Vehicle History files by VIN.
After completing ALL repairs to the vehicle you must perform the following procedure:
Move the vehicle into an open area of the service lot.
Sit in the vehicle with the engine running and the radio turned on for five minutes.
Press the OnStar(R) button in the vehicle.
When the OnStar(R) advisor answers ask the advisor to verify the current location of the vehicle.
If the vehicle location is different than the location the OnStar(R) advisor gives contact GM
Technical Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in
the diagnosis of a failed VCIM and, if appropriate, order a replacement part. Replacement parts are
usually shipped out within 24 hours, and a pre-paid return package label will be included for
returning the faulty part. By returning the faulty part, you will avoid a non-return core charge.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 02-08-46-006C > Jan > 08 > OnStar(R) - Incorrect GPS Position Reported
During Call
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Incorrect GPS Position
Reported During Call
Bulletin No.: 02-08-46-006C
Date: January 08, 2008
INFORMATION
Subject: Incorrect OnStar(R) Global Positioning System (GPS) Location Reported During
OnStar(R) Call
Models: 2000-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R)
Supercede:
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number
02-08-46-006B (Section 08 - Body and Accessories).
A small number of the above-mentioned vehicles may exhibit a condition in which the vehicle
reports an inaccurate location to the OnStar(R) Call Center. This condition can only be identified
via a button press to the OnStar(R) Call Center by the customer. Call Center personnel will be able
to identify this inaccurate location condition. Customers will then be notified through the mail by
OnStar(R) if their vehicle exhibits this condition. Once this condition has been identified OnStar(R)
will instruct the customer to return to the dealership to have this condition corrected.
It is not necessary to reconfigure the vehicle after the following procedure.
In order to correct this condition you must cycle power to the OnStar(R) system. This can be done
by either removing the fuses powering the OnStar(R) system or disconnecting the OnStar(R)
module (VCIM) from the vehicle. As a last resort you can disconnect the vehicle's battery.
The power needs to be removed from the system for approximately 15 minutes.
After completing this procedure the vehicle should be taken to an area with an unobstructed view of
the sky. The vehicle should be kept running for approximately 10 minutes to allow the vehicle to
reacquire the global positioning system (GPS). Then contact the OnStar(R) Call Center via the blue
OnStar(R) button and ask the advisor to verify the GPS position.
If the OnStar(R) advisor still has an inaccurate GPS location refer to the Navigation Systems and
Cellular Communications sub-sections in the Service Manual in order to diagnose and repair the
concern. If the normal diagnostics lead to module replacement you will need to contact Technical
Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in the
diagnosis and if appropriate order a replacement part. Replacement parts are usually shipped out
within 24 hours and a pre-paid return package label will be included for returning the faulty part. By
returning the faulty part you will avoid a significant non-return core charge.
Warranty Information (excluding Saab US Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab US Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 02-08-46-006C > Jan > 08 > OnStar(R) - Incorrect GPS Position Reported
During Call > Page 14983
For vehicles repaired under warranty use, the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free
Issues
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Loss of GPS Signal/Hands
Free Issues
Bulletin No.: 02-08-46-007C
Date: November 19, 2007
INFORMATION
Subject: Information on OnStar(R) System - Possible Loss of GPS Signal, Hands-Free Calling
Minutes Expire Prematurely and/or Inability to Add Hands-Free Calling Minutes
Models: 2001-2008 GM Passenger Cars and Light Duty Trucks (Including Saturn) 2003-2008
HUMMER H2 2006-2008 HUMMER H3 2005-2008 Saab 9-7X
with OnStar(R) System (RPO UE1)
Supercede:
This bulletin is being revised to add the 2008 model year, warranty information and to provide GPS
signal recovery steps (under Dealer Action heading) to do PRIOR to determining if the VIU/VCIM
needs replacement. Please discard Corporate Bulletin Number 02-08-46-007B (Section 08 - Body
& Accessories).
If the vehicle currently has analog-upgradable OnStar(R) hardware, then the customer should be
made aware of the digital upgrade program per the latest version of Service Bulletin #
05-08-46-006. Any analog OnStar system that is not upgraded prior to the end of 2007 will be
deactivated due to the upcoming phase-out of the analog cellular network in the U.S. and Canada.
If the vehicle has recently been upgraded or has had a service replacement unit installed, this
bulletin may not be applicable.
Certain 2001-2008 model year vehicles equipped with OnStar(R) may exhibit a condition with the
Global Positioning System (GPS) that causes inaccuracies in the GPS clock. The GPS system is
internal to the OnStar(R) Vehicle Interface Unit (VIU) or the Vehicle Communication Interface
Module (VCIM). This inaccuracy can result in a symptom where the OnStar(R) Call Center is
unable to obtain an accurate GPS signal, hands-Free Calling minutes expire prematurely and/or
the inability to add Hands-Free calling minutes.
Customer Notification
OnStar(R) will notify the customer by mail with instructions to contact their dealership service
department.
Dealer Action
Not all vehicles will require VIU/VCIM replacement.
The GPS signal in some vehicles may be recoverable. To determine if the signal is recoverable,
simply connect the Tech2(R) and using the GPS information data display option, observe the GPS
date and time. If the date/time stamps are equal to a date approximately 19 years in the future, the
GPS clock has exceeded its capacity and the VIU/VCIM will need to be replaced. If the date/time
stamp is in the past or near future, the GPS clock has simply generated an inaccurate value and
may be recoverable by performing the following power-up reset.
To initiate a power-up reset, battery voltage (batt. +) must be removed from the VIU/VCIM. The
preferred methods, in order, of initiating the reset are outlined below.
Remove the fuse that supplies Battery positive (Batt. +) voltage to the module (refer to the
applicable Service Information schematics for the appropriate fuse).
The next preferred method is to remove the connector to the OnStar(R) unit that Batt + is
contained.
The least preferable method is to remove the negative terminal of the vehicle battery. This will not
only initiate the power-up reset, but it may also result in the loss of radio presets and other stored
personalization information/settings in other modules as well.
After initiating the power-up reset, the GPS data will be set to the defaulted date and time and will
require an acquisition of the GPS signal in order to gain the proper date and time.
Acquiring the GPS signal requires running the vehicle in an open/unobstructed view of the sky.
First, contact OnStar(R) Technical Support by pressing the blue button. Allow the OnStar(R)
Technical Advisor to activate the GPS recovery process. This should take approximately 10
minutes. Continue to
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free
Issues > Page 14988
monitor the Tech2(R) for the current time and date. REMINDER - Keep in mind that the time
displayed on the Tech2(R) is in Greenwich Mean Time (GMT) and the offset is based on the time
zones relationship to GMT.
If replacement of the VIU/VCIM is necessary, you MUST reconfigure the OnStar® system. Failure
to reconfigure the system will result in an additional customer visit for repair. OnStar® VIU,
Generations 2 and 3, will require the technician to press the blue OnStar® button to reconfigure the
vehicle with an OnStar® advisor.
OnStar(R) VCIM, Generations 4-7 will require the technician to reconfigure the vehicle with the use
of the TIS2WEB and SPS applications (pass thru only), along with the Tech2(R).
The configuration and set-up procedure is a two-step process that must be completed step-by-step
without interruption or delay in between each step. This procedure enables an automated activation
without a button press by the technician to the OnStar(R) Call Center. Following this procedure, it
may take up to 24 hours for all OnStar(R) services to be fully activated.
How to Order Parts
If the OnStar(R) GPS date/time stamp is non-recoverable and the unit needs to be replaced,
dealers in the U.S. should contact Autocraft Electronics select the catalog item that contains this
bulletin number. Canadian dealers should contact MASS Electronics.
Dealers DO NOT need to call the GM Technical Assistance Center (TAC) for replacement
approval. Autocraft Electronics and MASS Electronics will be responsible for verifying that the
subject vehicle is a candidate for a replacement VIU/VCIM.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use the table.
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 02-08-46-007C > Nov > 07 > OnStar(R) - Loss of GPS Signal/Hands Free
Issues > Page 14989
For vehicles repaired under warranty, use the table.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 05-08-46-009B > Jun > 07 > OnStar(R) - Language Change Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Language Change
Information
Bulletin No.: 05-08-46-009B
Date: June 29, 2007
INFORMATION
Subject: Language Change for OnStar(R) System (U.S. and Canada Only)
Models: 2006-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2006-2008
HUMMER H2, H3 2006-2008 Saab 9-7X
with OnStar(R) (RPO UE1)
Built After and Including VIN Breakpoints Listed Below (2006 MY Only)
Attention:
This bulletin only applies to vehicles equipped with OnStar(R) Generation 6.1 or later with a Station
Identification (STID) Number in the following range: 16,000,000-17,000,000 or
20,000,000-21,999,999 or 23,500,001-26,000,000
Supercede:
This bulletin is being revised to update the service procedure and add a Canadian procedure.
Please discard Corporate Bulletin Numbers 05-08-46-009A and 05-08-46-008A (Section 08 - Body
and Accessories).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 05-08-46-009B > Jun > 07 > OnStar(R) - Language Change Information > Page
14994
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 05-08-46-009B > Jun > 07 > OnStar(R) - Language Change Information > Page
14995
Built After and Including the VIN Breakpoints shown.
The Generation (Gen) 6.1 OnStar(R) system found in these vehicles has the capability to change
the default English voice recognition to French or Spanish.
Changing the language of the OnStar(R) system will change the following features to the language
you select:
Voice recognition command prompts will be played in the language selected.
The voice recognition system will only recognize commands given in the selected language.
Once completed, this process completely changes all voice recognition and voice commands of the
OnStar(R) system. The process will need to be repeated in its entirety to change to a different
language, including English.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 05-08-46-009B > Jun > 07 > OnStar(R) - Language Change Information > Page
14996
Method 1
Method 2
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Technical Service
Bulletins for Emergency Contact Module: > 05-08-46-009B > Jun > 07 > OnStar(R) - Language Change Information > Page
14997
Method 3
The Gen 6.1 version of OnStar(R) does not require the use of the Service Programming System
(SPS) to change the voice recognition system. However, there are three ways to change the
language.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Emergency Contact Module: > 02-08-44-007D > May > 09 > OnStar(R) - Negative Impact of Cloth/Vinyl Roofs
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Negative Impact of
Cloth/Vinyl Roofs
INFORMATION
Bulletin No.: 02-08-44-007D
Date: May 12, 2009
Subject: Negative Impact of Dealer-Installed Cloth/Vinyl Roofs on XM Radio and/or OnStar(R)
Systems
Models:
2002-2009 Passenger Cars and Trucks (Including Saturn) 2003-2009 HUMMER H2 2006-2009
HUMMER H3 2005-2009 Saab 9-7X with XM Radio (RPO U2K) and/or OnStar(R) (RPO UE1)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being revised to
include the 2009 model year. Please discard Corporate Bulletin Number 02-08-44-007C (Section
08 - Body and Accessories).
..............................................................................................................................................................
..................................................................................
Dealers should not install a cloth or vinyl roof on vehicles that have been ordered with the XM radio
option (RPO U2K) and/or OnStar(R) (RPO UE1). The performance of these systems may be
negatively impacted by the installation of the cloth/vinyl roof. Additionally, water leaks may result
from installing a cloth or vinyl roof on vehicles with roof-mounted antenna systems. Relocating the
antenna to another spot on the vehicle exterior, in order to install a cloth or vinyl roof, is not advised
either. The performance of the OnStar(R) and XM Radio antennas has been optimized for their
current locations. Relocating the antennas may result in a performance degradation.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Emergency Contact Module: > 06-08-46-008C > Sep > 08 > OnStar(R) - Analog/Digital System Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Analog/Digital System
Information
INFORMATION
Bulletin No.: 06-08-46-008C
Date: September 18, 2008
Subject: Information on OnStar(R) Dual-Mode (Analog/Digital) Systems
Models
Supercede:
This bulletin is being revised to correct the model year range for the Chevrolet Impala and Monte
Carlo and update the reference to GM Dealerworld. Please discard Corporate Bulletin Number
06-08-46-008B (Section 08 - Body and Accessories).
All 2000-2003 model year vehicles equipped with OnStar® from the list above were built with
Analog/Digital-Ready OnStar(R) Hardware. Some of these vehicles may have been upgraded to
Dual-Mode (Analog/Digital).
Certain 2004-2005 model year vehicles equipped with OnStar(R) from the list above may have
been either:
^ Originally built at the factory with Dual-Mode (Analog/Digital) OnStar(R) Hardware with
Dual-Mode (Analog/Digital) OnStar(R) Hardware
OR
^ Upgraded to Dual-Mode (Analog/Digital) Hardware
All 2006 model year and newer vehicles equipped with OnStar(R) were built at the factory with
Dual-Mode (Analog/Digital) OnStar(R) Hardware.
If a vehicle has Dual-Mode (Analog/Digital) OnStar(R) Hardware, then the system is capable of
operating on both the analog and digital cellular
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Emergency Contact Module: > 06-08-46-008C > Sep > 08 > OnStar(R) - Analog/Digital System Information >
Page 15007
networks, and will not require an upgrade in connection with the cellular industry's transition to the
digital network.
In order to verify the type of OnStar(R) Hardware in a vehicle, type the VIN into the VIN look-up
tool, which is available at the OnStar(R) Online Enrollment website within GM GlobalConnect (for
U.S. dealers) or InfoNet (for Canadian dealers).
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Emergency Contact Module: > 08-08-46-004 > Aug > 08 > OnStar(R) - Aftermarket Device Interference
Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Aftermarket Device
Interference Information
INFORMATION
Bulletin No.: 08-08-46-004
Date: August 14, 2008
Subject: Information on Aftermarket Device Interference with OnStar(R) Diagnostic Services
Models: 2009 and Prior GM Passenger Car and Truck (including Saturn) 2009 and Prior HUMMER
H2, H3 Models 2009 and Prior Saab 9-7X
with OnStar(R) (RPO UE1)
This bulletin is being issued to provide dealer service personnel with information regarding
aftermarket devices connected to the Diagnostic Link Connector (DLC) and the impact to
OnStar(R) diagnostic probes and Vehicle Diagnostic e-mails.
Certain aftermarket devices, when connected to the Diagnostic Link Connector, such as, but not
limited to, Scan Tools, Trip Computers, Fuel Economy Analyzers and Insurance Tracking Devices,
interfere with OnStar's ability to perform a diagnostic probe when requested (via a blue button call)
by a subscriber. These devices also prohibit the ability to gather diagnostic and tire pressure data
for a subscriber's scheduled OnStar(R) Vehicle Diagnostic (OVD) e-mail.
These aftermarket devices utilize the Vehicles serial data bus to perform data requests and/or
information gathering. When these devices are requesting data, OnStar(R) is designed not to
interfere with any data request being made by these devices as required by OBD II regulations.
The OnStar(R) advisor is unable to definitively detect the presence of these devices and will only
be able to inform the caller or requester of the unsuccessful or incomplete probe and may in some
cases refer the subscriber/requester to take the vehicle to a dealer for diagnosis of the concern.
When performing a diagnostic check for an unsuccessful or incomplete OnStar(R) diagnostic
probe, or for concerns regarding completeness of the OnStar(R) Vehicle Diagnostic (OVD) e-mail,
verify that an aftermarket device was not present at the time of the requested probe. Regarding the
OVD e-mail, if an aftermarket device is interfering (including a Scan Tool of any type), the e-mail
will consistently display a "yellow" indication in diagnostics section for all vehicle systems except
the OnStar(R) System and Tire Pressure data (not available on all vehicles) will not be displayed
(i.e. section is collapsed). Successful diagnostic probes and complete OVD e-mails will resume
following the removal or disconnecting of the off-board device.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Emergency Contact Module: > 00-08-46-004C > Jan > 08 > OnStar(R) - Re-establishing OnStar(R)
Communications
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Re-establishing OnStar(R)
Communications
Bulletin No.: 00-08-46-004C
Date: January 17, 2008
INFORMATION
Subject: Re-establishing Communications with OnStar(R) Center After Battery Disconnect
Models: 2000-2008 GM Passenger Cars and Trucks (Including Saturn and Saab)
with Digital OnStar(R) (RPO UE1)
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 00-08-46-004B (Section 08 - Body and Accessories).
When servicing any of the above models and a battery cable is disconnected or power to the
OnStar(R) Vehicle Communication Interface Module (VCIM) is interrupted for any reason the
following procedure must be performed to verify proper Global Positioning System (GPS) function.
Never swap OnStar(R) Vehicle Communication Interface Modules (VCIM) from other vehicles.
Transfer of OnStar(R) modules from other vehicles should not be done. Each OnStar(R) module
has a unique identification number. The VCIM has a specific Station Identification (STID). This
identification number is used by the National Cellular Telephone Network and OnStar(R) systems
and is stored in General Motors Vehicle History files by VIN.
After completing ALL repairs to the vehicle you must perform the following procedure:
Move the vehicle into an open area of the service lot.
Sit in the vehicle with the engine running and the radio turned on for five minutes.
Press the OnStar(R) button in the vehicle.
When the OnStar(R) advisor answers ask the advisor to verify the current location of the vehicle.
If the vehicle location is different than the location the OnStar(R) advisor gives contact GM
Technical Assistance (TAC) and choose the OnStar(R) prompt. GM OnStar(R) TAC will assist in
the diagnosis of a failed VCIM and, if appropriate, order a replacement part. Replacement parts are
usually shipped out within 24 hours, and a pre-paid return package label will be included for
returning the faulty part. By returning the faulty part, you will avoid a non-return core charge.
Disclaimer
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Emergency Contact Module: > 05-08-46-009B > Jun > 07 > OnStar(R) - Language Change Information
Emergency Contact Module: All Technical Service Bulletins OnStar(R) - Language Change
Information
Bulletin No.: 05-08-46-009B
Date: June 29, 2007
INFORMATION
Subject: Language Change for OnStar(R) System (U.S. and Canada Only)
Models: 2006-2008 GM Passenger Cars and Light Duty Trucks (including Saturn) 2006-2008
HUMMER H2, H3 2006-2008 Saab 9-7X
with OnStar(R) (RPO UE1)
Built After and Including VIN Breakpoints Listed Below (2006 MY Only)
Attention:
This bulletin only applies to vehicles equipped with OnStar(R) Generation 6.1 or later with a Station
Identification (STID) Number in the following range: 16,000,000-17,000,000 or
20,000,000-21,999,999 or 23,500,001-26,000,000
Supercede:
This bulletin is being revised to update the service procedure and add a Canadian procedure.
Please discard Corporate Bulletin Numbers 05-08-46-009A and 05-08-46-008A (Section 08 - Body
and Accessories).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Emergency Contact Module: > 05-08-46-009B > Jun > 07 > OnStar(R) - Language Change Information > Page
15020
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Emergency Contact Module: > 05-08-46-009B > Jun > 07 > OnStar(R) - Language Change Information > Page
15021
Built After and Including the VIN Breakpoints shown.
The Generation (Gen) 6.1 OnStar(R) system found in these vehicles has the capability to change
the default English voice recognition to French or Spanish.
Changing the language of the OnStar(R) system will change the following features to the language
you select:
Voice recognition command prompts will be played in the language selected.
The voice recognition system will only recognize commands given in the selected language.
Once completed, this process completely changes all voice recognition and voice commands of the
OnStar(R) system. The process will need to be repeated in its entirety to change to a different
language, including English.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Emergency Contact Module: > 05-08-46-009B > Jun > 07 > OnStar(R) - Language Change Information > Page
15022
Method 1
Method 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Emergency Contact Module > Component Information > Technical Service Bulletins > All Other Service
Bulletins for Emergency Contact Module: > 05-08-46-009B > Jun > 07 > OnStar(R) - Language Change Information > Page
15023
Method 3
The Gen 6.1 version of OnStar(R) does not require the use of the Service Programming System
(SPS) to change the voice recognition system. However, there are three ways to change the
language.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07
> Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07
> Campaign - Keyless Entry Transmitter/Module Programming > Page 15032
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07
> Campaign - Keyless Entry Transmitter/Module Programming > Page 15033
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07
> Campaign - Keyless Entry Transmitter/Module Programming > Page 15034
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07
> Campaign - Keyless Entry Transmitter/Module Programming > Page 15035
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07
> Campaign - Keyless Entry Transmitter/Module Programming > Page 15036
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07
> Campaign - Keyless Entry Transmitter/Module Programming > Page 15037
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: Customer Interest Keyless Systems - Poor Range/TPM Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15043
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Customer Interest: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15044
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Keyless Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Keyless Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page
15050
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Keyless Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page
15051
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page
15056
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page
15057
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
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for Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page
15058
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page
15059
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
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Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins
for Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page
15060
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
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for Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page
15061
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Keyless Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
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Keyless Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page
15067
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Keyless Entry Module: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page
15068
For vehicles repaired under warranty, use the table.
Disclaimer
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Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15074
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
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Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15075
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15076
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15077
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15078
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > All Other Service Bulletins for
Keyless Entry Module: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15079
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Page 15080
Keyless Entry Module: Diagrams
Remote Function Connector End Views
Remote Control Door Lock Receiver (RCDRL)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Keyless Entry Module > Component Information > Technical Service Bulletins > Page 15081
Keyless Entry Module: Service and Repair
Remote Control Door Lock Receiver Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Navigation Module > Component Information > Technical Service Bulletins > Customer Interest for Navigation
Module: > 07-08-44-010B > May > 09 > Navigation System - Display Locks Up/Error Messages
Navigation Module: Customer Interest Navigation System - Display Locks Up/Error Messages
TECHNICAL
Bulletin No.: 07-08-44-010B
Date: May 06, 2009
Subject: Navigation Radio Display Locks Up or Displays Error Messages (Update Navigation
Software)
Models:
2006-2007 Buick Lucerne 2007 Chevrolet Equinox 2007 GMC Acadia 2007 Pontiac Torrent 2007
Saturn OUTLOOK Equipped With Navigation Radio - RPO U3U (Equinox, Lucerne, Torrent) or
U3R or UZR (Acadia, OUTLOOK)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being canceled.
Please discard Corporate Bulletin Number 07-08-44-010A (Section 08 - Body & Accessories).
..............................................................................................................................................................
..................................................................................
For vehicles exhibiting the condition stated above, please refer to Corporate Bulletin Number
08-08-44-013C for the latest repair information.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Navigation Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Navigation Module: > 07-08-44-010B > May > 09 > Navigation System - Display Locks Up/Error Messages
Navigation Module: All Technical Service Bulletins Navigation System - Display Locks Up/Error
Messages
TECHNICAL
Bulletin No.: 07-08-44-010B
Date: May 06, 2009
Subject: Navigation Radio Display Locks Up or Displays Error Messages (Update Navigation
Software)
Models:
2006-2007 Buick Lucerne 2007 Chevrolet Equinox 2007 GMC Acadia 2007 Pontiac Torrent 2007
Saturn OUTLOOK Equipped With Navigation Radio - RPO U3U (Equinox, Lucerne, Torrent) or
U3R or UZR (Acadia, OUTLOOK)
..............................................................................................................................................................
.................................................................................. Supercede: This bulletin is being canceled.
Please discard Corporate Bulletin Number 07-08-44-010A (Section 08 - Body & Accessories).
..............................................................................................................................................................
..................................................................................
For vehicles exhibiting the condition stated above, please refer to Corporate Bulletin Number
08-08-44-013C for the latest repair information.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Relay Module > Component Information > Technical Service Bulletins > Customer Interest for Relay Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules
Relay Module: Customer Interest Electrical - MIL ON/DTC's Set By Various Control Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Relay Module > Component Information > Technical Service Bulletins > Customer Interest for Relay Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15103
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Relay Module > Component Information > Technical Service Bulletins > Customer Interest for Relay Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15104
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Relay Module > Component Information > Technical Service Bulletins > Customer Interest for Relay Module: >
09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15105
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Relay Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules
Relay Module: All Technical Service Bulletins Electrical - MIL ON/DTC's Set By Various Control
Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Relay Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15111
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Relay Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15112
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relays and Modules - Accessories and Optional
Equipment > Relay Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for
Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15113
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relay Module > Component Information >
Technical Service Bulletins > Customer Interest for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's
Set By Various Control Modules
Relay Module: Customer Interest Electrical - MIL ON/DTC's Set By Various Control Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relay Module > Component Information >
Technical Service Bulletins > Customer Interest for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's
Set By Various Control Modules > Page 15122
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relay Module > Component Information >
Technical Service Bulletins > Customer Interest for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's
Set By Various Control Modules > Page 15123
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relay Module > Component Information >
Technical Service Bulletins > Customer Interest for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's
Set By Various Control Modules > Page 15124
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relay Module > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical MIL ON/DTC's Set By Various Control Modules
Relay Module: All Technical Service Bulletins Electrical - MIL ON/DTC's Set By Various Control
Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relay Module > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical MIL ON/DTC's Set By Various Control Modules > Page 15130
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relay Module > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical MIL ON/DTC's Set By Various Control Modules > Page 15131
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Relay Module > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Relay Module: > 09-06-03-004D > Dec > 10 > Electrical MIL ON/DTC's Set By Various Control Modules > Page 15132
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Sensors and Switches - Accessories and Optional
Equipment > Hood Sensor/Switch (For Alarm) > Component Information > Diagrams
Hood Sensor/Switch (For Alarm): Diagrams
Immobilizer Connector End Views
Hood Ajar Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Sensors and Switches - Accessories and Optional
Equipment > Pedal Positioning Sensor > Component Information > Service and Repair > Procedures
Pedal Positioning Sensor: Procedures
BRAKE PEDAL POSITION SENSOR CALIBRATION
CALIBRATION CRITERIA
The brake pedal position sensor (BPPS) receives a low reference signal and a 5-volt reference
signal from the BCM. Whenever the brake pedal is applied, the BPPS applies a variable voltage
signal to the BCM through the stop lamp switch signal circuit. The BPPS calibration must be
performed after the BPPS or body control module (BCM) have been serviced. The calibration
procedure will set BPPS home value. This value is used by the BCM to determine the action of the
driver applying the brake system and to provide this information to the vehicle subsystems via the
communication bus.
CALIBRATION PROCEDURE
- Install a scan tool.
- Turn ON the ignition, with the engine OFF.
- Select Diagnostics.
- Select the year.
- Select the vehicle type.
- Select BCM.
- Select Module Setup.
- Select the BPPS calibration procedure and follow the directions displayed on the screen.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Sensors and Switches - Accessories and Optional
Equipment > Pedal Positioning Sensor > Component Information > Service and Repair > Procedures > Page 15141
Pedal Positioning Sensor: Removal and Replacement
BRAKE PEDAL POSITION SENSOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Sensors and Switches - Accessories and Optional
Equipment > Remote Switch, Audio - Stereo > Component Information > Technical Service Bulletins > Audio - Inadvertent
Steering Wheel Button Activation
Remote Switch: Technical Service Bulletins Audio - Inadvertent Steering Wheel Button Activation
INFORMATION
Bulletin No.: 08-08-44-028
Date: August 28, 2008
Subject: Information On Inadvertent Steering Wheel Control (SWC) Button Press Causing Radio
Anomalies
Models: 2009 and Prior GM Passenger Cars and Trucks (Including Saturn) 2009 and Prior
HUMMER H2, H3 Models 2009 and Prior Saab 9-7X
All Vehicles with Steering Wheel Controls
This bulletin is being issued to provide a recommendation for vehicles with a customer concern of
the radio station tuning changing by itself, volume changing by itself, radio changing by itself, or
radio muting or going silent when driving and turning the steering wheel.
The switches on the right hand side of the steering wheel are easily pressed and may inadvertently
be pressed when turning the steering wheel.
These concerns may be affected by the location of the steering wheel controls.
Recommendation
Do Not Replace The Radio
1. Please determine that the switch controls on the steering wheel are functioning correctly.
2. Ask the customer if their hand was in close proximity to the steering wheel controls when the
condition happened. Explain to the customer that bumping the controls would have caused this
undesired action. Explain to the customer the proper use and function of the steering wheel
controls.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Sensors and Switches - Accessories and Optional
Equipment > Steering Mounted Controls Assembly > Component Information > Diagrams
Steering Mounted Controls Assembly: Diagrams
Cruise Control Connector End Views
Steering Wheel Control Switch - Left (Chevrolet w/ K34 w/o UK3)
Steering Wheel Controls - Right (UK3)
Steering Wheel Control Switch - Right (Chevrolet w/ K34 w/o UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Sensors and Switches - Accessories and Optional
Equipment > Steering Mounted Controls Assembly > Component Information > Diagrams > Page 15149
Steering Wheel Control Switch - Left (Chevrolet w/ K34 and UK3)
Steering Wheel Control Switch - Right (Chevrolet w/ K34 and UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Sensors and Switches - Accessories and Optional
Equipment > Steering Mounted Controls Assembly > Component Information > Diagrams > Page 15150
Steering Wheel Controls - Left
Steering Wheel Control Switch - Left (Pontiac w/ K34/UK3)
Steering Wheel Controls - Left
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Sensors and Switches - Accessories and Optional
Equipment > Steering Mounted Controls Assembly > Component Information > Diagrams > Page 15151
Steering Wheel Control Switch - Right (Pontiac w/ K34/UK3)
Steering Wheel Controls - Right (UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Sensors and Switches - Accessories and Optional
Equipment > Steering Mounted Controls Assembly > Component Information > Diagrams > Page 15152
Steering Mounted Controls Assembly: Service and Repair
Steering Wheel Control Switch Assembly Replacement (Equinox)
Removal Procedure
1. Use a small flat-bladed tool to release the switch assembly from the steering wheel. 2.
Disconnect the cruise switch electrical harness connector from the switch.
Installation Procedure
1. Connect the switch electrical harness connector to the switch. Push in the connector until a click
is heard and pull back to confirm a positive
engagement.
2. Insert the cruise switch into the steering wheel and gently apply pressure to fasten the switch in
the opening.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Steering Mounted Controls Assembly > Component
Information > Diagrams
Steering Mounted Controls Assembly: Diagrams
Cruise Control Connector End Views
Steering Wheel Control Switch - Left (Chevrolet w/ K34 w/o UK3)
Steering Wheel Controls - Right (UK3)
Steering Wheel Control Switch - Right (Chevrolet w/ K34 w/o UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Steering Mounted Controls Assembly > Component
Information > Diagrams > Page 15156
Steering Wheel Control Switch - Left (Chevrolet w/ K34 and UK3)
Steering Wheel Control Switch - Right (Chevrolet w/ K34 and UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Steering Mounted Controls Assembly > Component
Information > Diagrams > Page 15157
Steering Wheel Controls - Left
Steering Wheel Control Switch - Left (Pontiac w/ K34/UK3)
Steering Wheel Controls - Left
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Steering Mounted Controls Assembly > Component
Information > Diagrams > Page 15158
Steering Wheel Control Switch - Right (Pontiac w/ K34/UK3)
Steering Wheel Controls - Right (UK3)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Steering Mounted Controls Assembly > Component
Information > Diagrams > Page 15159
Steering Mounted Controls Assembly: Service and Repair
Steering Wheel Control Switch Assembly Replacement (Equinox)
Removal Procedure
1. Use a small flat-bladed tool to release the switch assembly from the steering wheel. 2.
Disconnect the cruise switch electrical harness connector from the switch.
Installation Procedure
1. Connect the switch electrical harness connector to the switch. Push in the connector until a click
is heard and pull back to confirm a positive
engagement.
2. Insert the cruise switch into the steering wheel and gently apply pressure to fasten the switch in
the opening.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Towing / Trailer System > Towing Information >
System Information > Technical Service Bulletins > Vehicle - Recreational (Dinghy) Towing Information
Towing Information: Technical Service Bulletins Vehicle - Recreational (Dinghy) Towing Information
Bulletin No.: 00-00-89-008F
Date: July 28, 2006
INFORMATION
Subject: Recreational (Dinghy) Towing
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Towing / Trailer System > Towing Information >
System Information > Technical Service Bulletins > Vehicle - Recreational (Dinghy) Towing Information > Page 15165
Models
Supercede:
This bulletin is being revised to add model years, models and additional information. Please
discard Corporate Bulletin Number 00-00-89-008E (Section 00 - General Information).
Some customers may want to tow their vehicle behind another vehicle with all FOUR tires on the
ground. This is referred to as "dinghy" towing. Towing in this manner is acceptable only on the
certain vehicles. The vehicle should be properly equipped and prepared as described below. The
passenger cars listed above are the vehicles that CAN be dinghy towed. Passenger cars not listed
above are vehicles where dinghy towing is not permitted or recommended.
Certain 4WD trucks can be dinghy towed depending on the transfer case option. Rear wheel drive
and AWD trucks should NOT be dinghy towed. Refer to the truck models and transfer case options
below.
Please refer to the applicable vehicle Owner's Manual before towing.
Passenger Cars
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Towing / Trailer System > Towing Information >
System Information > Technical Service Bulletins > Vehicle - Recreational (Dinghy) Towing Information > Page 15166
Note:
The vehicles shown must not be towed backwards or transmission damage may occur.
Towing Procedure
Note:
Failure to follow these instructions may result in damage to the transmission.
Important:
The towing speed as stated in the Owner's Manual should not exceed 104 km/h (65 mph) for
1995-2005 vehicles.
In order to properly dinghy tow the vehicle, follow these steps:
1. Firmly set the parking brake.
2. Open the fuse panel and pull the fuse(s) indicated in the Owner's Manual section detailing
towing your vehicle. This prevents the instrument panel (IP) and/or electronic PRNDL indicator
from draining the battery.
3. Securely attach the vehicle to the tow vehicle.
4. Turn the ignition key to the OFF position, which is one position forward of LOCK. Unlocking the
steering column allows for proper movement of the front wheels and tires during towing.
For 1997-1999 Cutlass, 1997-2003 Malibu, 2004-2006 Chevrolet Classic and 1999-2004
Alero/Grand Am models, turn the ignition switch to the accessory (ACC) position, which is one
position forward of OFF. This position unlocks the transaxle.
5. Shift the transmission to Neutral (N).
Note:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Towing / Trailer System > Towing Information >
System Information > Technical Service Bulletins > Vehicle - Recreational (Dinghy) Towing Information > Page 15167
Use extra care whenever towing another vehicle. Do not exceed the towing vehicle's gross
combination weight (GCW) by adding the weight of the dinghy towed vehicle or vehicle damage
may result.
6. When the vehicle being towed is firmly attached to the tow vehicle, release the parking brake.
7. Replace the fuse(s) in the fuse panel when finished towing.
Tracker Models
Note:
Locking the steering column when towing your vehicle may damage the steering column. Always
unlock the steering column before towing.
Important:
^ Two-wheel drive Trackers cannot be dinghy towed. Two-wheel drive models MUST be towed with
the rear drive wheels on a dolly.
^ The towing speed must not exceed 90 km/h (55 mph).
In order to properly dinghy tow a 4WD Tracker, follow these steps:
1. Set the parking brake.
2. Shift the transmission into Park (AT) or second gear (MT).
3. With the ignition key in the ON position, move the transfer case to Neutral. Make sure the 4WD
indicator on the instrument panel cluster is Off.
4. Turn the ignition key to ACC in order to unlock the steering wheel.
5. Release the parking brake.
Stop towing the vehicle every 300 km (200 mi) and do the following steps:
1. Start the engine of the towed vehicle.
2. Leave the transfer case shift lever in Neutral.
3. Shift the transmission to Drive (AT). For vehicles with (MT), leave the transmission in second
gear with the clutch engaged.
4. Run the engine at medium speed for one minute to circulate the oil through the transfer case.
2003-2007 Pontiac Vibe
Only the front wheel drive vehicles with manual transmission are designed to be dinghy towed. Use
the following procedure to properly dinghy tow these models:
1. Place the shift lever in Neutral.
2. Turn the ignition switch to the ACC position to avoid locking the steering wheel. Make sure that
the audio system is turned off and that nothing is plugged into the power outlets.
3. Release the parking brake.
4. After dinghy towing the vehicle, let the engine idle for more than three minutes before driving the
vehicle.
Four Wheel Drive and All Wheel Drive Light Duty Trucks
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Towing / Trailer System > Towing Information >
System Information > Technical Service Bulletins > Vehicle - Recreational (Dinghy) Towing Information > Page 15168
Dinghy towing is permitted on the trucks shown with the transfer case placed in the Neutral
position. Refer to the end of this bulletin for identification information to determine type of transfer
case.
The vehicles shown should NOT be dinghy towed because the transfer cases in these vehicles
either have no neutral position or do not have an internal oil pump to provide lubrication while being
towed. In order to properly tow the vehicles, place the vehicle on a platform trailer with all four tires
off the ground. Avoid towing the vehicle with all four tires on the ground. In rare instances when
towing with all four tires on the ground is unavoidable, both the front and the rear propeller shafts
must be removed in order to prevent damage to the transfer case and/or transmission. Because
front and rear propeller shafts are matched to attaching components at assembly, refer to the
applicable Service Manual for procedures on propeller shaft removal/installation.
Towing Procedure
In order to properly dinghy tow the vehicle, use the following procedure:
1. Firmly set the parking brake.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Towing / Trailer System > Towing Information >
System Information > Technical Service Bulletins > Vehicle - Recreational (Dinghy) Towing Information > Page 15169
2. Place the AT in Park (P) or the MT in the lowest gear (1st).
3. Securely attach the vehicle being towed to the tow vehicle.
Caution:
Shifting the transfer case to Neutral can cause the vehicle to roll, even if the transmission is in park
(automatic) or 1st gear (manual), and may cause personal injury.
4. If equipped, place the transfer case shift lever in Neutral (N).
Note:
Use extra care whenever towing another vehicle. Do not exceed the towing vehicle's gross
combination weight (GCW) by adding the weight of the dinghy towed vehicle or vehicle damage
may result.
5. When the vehicle being towed is firmly attached to the tow vehicle, release the parking brake.
6. The Owner's Manual specifies the appropriate ignition key position to ensure that the steering is
unlocked to allow the front wheels to follow the tow vehicle.
Rear Wheel Drive Light Duty Trucks
Important:
^ Dust or dirt can enter the back of the transmission through the opening created by the removal of
the slip yoke from the transmission if proper protection is not provided.
^ Verify that the transmission fluid is at the proper level before driving the truck.
Rear wheel drive vehicles, equipped with AT or MT, should NOT be dinghy towed. These
transmissions have no provisions for internal lubrication while being towed. In order to properly tow
these vehicles, place the vehicle on a platform trailer with all four tires off the ground. Avoid towing
the vehicle with all four tires on the ground. In rare instances when it is unavoidable that a rear
wheel drive vehicle be dinghy towed, the propeller shaft to axle yoke orientation should be marked
and the propeller shaft removed. Refer to the applicable Service Manual for procedures on
propeller shaft removal/installation.
Transfer Case Identification
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Accessories and Optional Equipment > Towing / Trailer System > Towing Information >
System Information > Technical Service Bulletins > Vehicle - Recreational (Dinghy) Towing Information > Page 15170
The identification tag on the rear half of the transfer case provides the information shown.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > Customer Interest: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn
Signal Lever Inop
Body Control Module: Customer Interest Wipers - Wipers Work On One Speed/Turn Signal Lever
Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > Customer Interest: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn
Signal Lever Inop > Page 15181
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > Customer Interest: > 06-06-03-009 > Oct > 06 > Electrical - Battery Goes Dead Overnight
Body Control Module: Customer Interest Electrical - Battery Goes Dead Overnight
Bulletin No.: 06-06-03-009
Date: October 19, 2006
INFORMATION
Subject: Diagnostic Information on Battery Draw No Start - Body Control Module, BCM Power
Timer
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2006-2007 Chevrolet Impala, Monte
Carlo 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Tahoe, Silverado, Suburban 2007 GMC Sierra, Yukon, Yukon XL, Denali, Denali XL 2007
Pontiac Torrent
When performing normal diagnosis on a battery that has gone dead overnight, a technician may
notice that the vehicle has approximately 4.1 amp draw on the system. The draw may be steady or
may drop down to a low milliamp reading for 1-2 seconds and then rise back up to the 4.1 amp
range. If this amp draw condition is observed, check for aftermarket accessories or an improperly
installed GM accessory that is wired into circuit 6815 (orange wire) for courtesy lamps. Anytime
aftermarket accessories are installed into the courtesy lamp circuit, it can cause the inadvertent
power timer in the body control module (BCM) to keep resetting. The BCM will remain awake and
cause the draw of approximately 4.1 amps.
When servicing a vehicle with this concern, back out pin 1 of the connector 2 at the BCM and see if
the draw goes away. If the draw goes away, check for an aftermarket accessory (Lojack,
non-factory DVD system, alarm, etc.) that is improperly installed in circuit 6815.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Technical Service Bulletins: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To
Reprogram Body Control Module
Body Control Module: All Technical Service Bulletins Body Controls - Unable To Reprogram Body
Control Module
INFORMATION
Bulletin No.: 09-08-47-001A
Date: June 14, 2010
Subject: Unable to Reprogram Body Control Module (BCM), BCM Reprogramming Did Not
Complete - Revised Reprogramming Instructions
Models:
2006-2010 Buick Lucerne 2006-2010 Cadillac DTS 2007-2010 Cadillac Escalade, Escalade ESV,
Escalade EXT, SRX 2008-2010 Cadillac CTS 2010 Cadillac CTS Wagon 2010 Chevrolet Camaro
2006-2007 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala 2007-2010 Chevrolet Avalanche,
Equinox, Silverado, Suburban, Tahoe 2008-2010 Chevrolet Express 2009-2010 Chevrolet
Traverse 2007-2010 GMC Acadia, Sierra, Yukon, Yukon XL, Yukon Denali, Yukon Denali XL
2008-2010 GMC Savana 2010 GMC Terrain 2007-2009 Pontiac Torrent 2008-2009 Pontiac G8
2008-2009 HUMMER H2 2007-2009 Saturn OUTLOOK 2008-2009 Saturn VUE Refer to GMVIS
Supercede: This bulletin is being revised to update the models and the model years. Please
discard Corporate Bulletin Number 09-08-47-001 (Section 08 - Body and Accessories).
Some technicians may experience an unsuccessful body control module (BCM) reprogramming
event, when choosing the Reprogram ECU selection on the Service Programming System (SPS).
The technician may also notice that when attempting to reprogram the BCM again after this
incident has occurred, the BCM may not complete the programming event.
This condition may be caused by the following:
- A reprogramming event that was interrupted due to a lack of communication between the vehicle
and the TIS2WEB terminal.
- The vehicle experienced low system voltage during the reprogramming event.
Important Do not replace the BCM for this condition.
SPS Programming Process Selection
Perform this procedure first.
1. If reprogramming has failed during the initial reprogramming event, back out of the SPS
application completely. 2. Re-select SPS from the TIS2WEB terminal application. 3. When
selecting the Programming Process , choose Replace and Program ECU , even though a new
BCM is NOT being installed. 4. Reprogram the BCM using the Service Programming System (SPS)
with the latest calibration available on TIS2WEB. Refer to the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Technical Service Bulletins: > 09-08-47-001A > Jun > 10 > Body Controls - Unable To
Reprogram Body Control Module > Page 15191
During programming, the battery voltage must be maintained within the proper range of 12-15
volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
BCM Still Fails to Reprogram
If the BCM still fails to reprogram perform this procedure:
1. Turn OFF the ignition, and remove the key. 2. Remove the fuses that power up the following
modules/components for a minimum of 2 minutes:
- BCM
- EBCM
- ECM
- IS LPS (located in the left IP fusebox)
- TCM
3. Open and close the driver door. Allow enough time for the retained accessory power (RAP) to
turn OFF. 4. Reinstall the fuses. 5. When selecting the Programming Process , choose Replace
and Program ECU , even though a new BCM is NOT being installed. 6. Reprogram the BCM using
the Service Programming System (SPS) with the latest calibration available on TIS2WEB. Refer to
the SPS procedures
in SI.
When using a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with
the latest software version.
When using a Tech 2(R) for reprogramming, ensure that it is updated with the latest software
version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Technical Service Bulletins: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control
Module (BCM) Grounds
Body Control Module: All Technical Service Bulletins Body Controls - Body Control Module (BCM)
Grounds
INFORMATION
Bulletin No.: 07-08-47-004C
Date: December 04, 2009
Subject: Information on Body Control Module (BCM) Grounds
Models:
2006-2010 Buick Lucerne 2007-2010 Buick Enclave 2006-2010 Cadillac DTS 2007-2009 Cadillac
SRX 2008-2010 Cadillac CTS 2006-2008 Chevrolet Monte Carlo 2006-2010 Chevrolet Impala
2007-2009 Chevrolet Equinox 2008-2010 Chevrolet Express, Traverse 2007-2010 GMC Acadia
2008-2010 GMC Savana 2007-2009 Pontiac Torrent 2007-2010 Saturn OUTLOOK 2008-2010
Saturn VUE 2008-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models, model years and information.
Please discard Corporate Bulletin Number 07-08-47-004B (Section 08 - Body & Accessories).
The purpose of this bulletin is to inform dealers of an issue that could cause internal module
damage to the Body Control Module (BCM).
The BCM may be damaged when the module is supplied with battery power and the ground path is
removed. You must remove the negative battery cable first before removing a BCM ground.
Issue 1
Below is a list of vehicles and the components that the BCM ground path passes through. The
negative battery cable must be removed when removing the components noted below.
- 2008-2010 HUMMER H2 (Instrument panel electrical center)
- 2008-2010 Saturn VUE (I/P splice pack)
Issue 2
It is important to note when removing a ring terminal ground, splice pack connector, or inline
harness connector for all the vehicles listed in the model section above, that it doesn't include a
BCM ground path. You must remove the negative battery cable if you determine that it is a BCM
ground path.
As an example: If the BCM grounds become disconnected, internal damage to the BCM will occur.
Other systems controlled by the BCM will also be affected, such as an inoperative or intermittent
condition in one or more of the following systems:
- Interior lighting will remain on or will not work
- Exterior lighting will remain on or will not work
- Remote keyless entry
- Door locks
- Power windows and mirrors
- Remote vehicle start
- Remote trunk release
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Technical Service Bulletins: > 07-08-47-004C > Dec > 09 > Body Controls - Body Control
Module (BCM) Grounds > Page 15196
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Technical Service Bulletins: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One
Speed/Turn Signal Lever Inop
Body Control Module: All Technical Service Bulletins Wipers - Wipers Work On One Speed/Turn
Signal Lever Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Technical Service Bulletins: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One
Speed/Turn Signal Lever Inop > Page 15201
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Technical Service Bulletins: > 06-06-03-009 > Oct > 06 > Electrical - Battery Goes Dead
Overnight
Body Control Module: All Technical Service Bulletins Electrical - Battery Goes Dead Overnight
Bulletin No.: 06-06-03-009
Date: October 19, 2006
INFORMATION
Subject: Diagnostic Information on Battery Draw No Start - Body Control Module, BCM Power
Timer
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2006-2007 Chevrolet Impala, Monte
Carlo 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Tahoe, Silverado, Suburban 2007 GMC Sierra, Yukon, Yukon XL, Denali, Denali XL 2007
Pontiac Torrent
When performing normal diagnosis on a battery that has gone dead overnight, a technician may
notice that the vehicle has approximately 4.1 amp draw on the system. The draw may be steady or
may drop down to a low milliamp reading for 1-2 seconds and then rise back up to the 4.1 amp
range. If this amp draw condition is observed, check for aftermarket accessories or an improperly
installed GM accessory that is wired into circuit 6815 (orange wire) for courtesy lamps. Anytime
aftermarket accessories are installed into the courtesy lamp circuit, it can cause the inadvertent
power timer in the body control module (BCM) to keep resetting. The BCM will remain awake and
cause the draw of approximately 4.1 amps.
When servicing a vehicle with this concern, back out pin 1 of the connector 2 at the BCM and see if
the draw goes away. If the draw goes away, check for an aftermarket accessory (Lojack,
non-factory DVD system, alarm, etc.) that is improperly installed in circuit 6815.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Other Service Bulletins for Body Control Module: > 09-06-03-004D > Dec > 10 >
Electrical - MIL ON/DTC's Set By Various Control Modules
Relay Module: All Technical Service Bulletins Electrical - MIL ON/DTC's Set By Various Control
Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Other Service Bulletins for Body Control Module: > 09-06-03-004D > Dec > 10 >
Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15211
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Other Service Bulletins for Body Control Module: > 09-06-03-004D > Dec > 10 >
Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15212
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Other Service Bulletins for Body Control Module: > 09-06-03-004D > Dec > 10 >
Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15213
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Other Service Bulletins for Body Control Module: > 09-06-03-004D > Dec > 10 >
Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15219
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Other Service Bulletins for Body Control Module: > 09-06-03-004D > Dec > 10 >
Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15220
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Technical Service Bulletins > All Other Service Bulletins for Body Control Module: > 09-06-03-004D > Dec > 10 >
Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15221
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1
Body Control Module: Diagrams Body Control Module - C1
Body Control Module - C1 (Pin 1 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15224
Body Control Module - C1 (Pin 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15225
Body Control Module: Diagrams Body Control Module - C2
Body Control Module - C2 (Pin 1 To 20)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15226
Body Control Module - C2 (Pin 21 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15227
Body Control Module: Diagrams Body Control Module - C3
Body Control Module - C3 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15228
Body Control Module - C3 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15229
Body Control Module: Diagrams Body Control Module - C4
Body Control Module - C4 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15230
Body Control Module - C4 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15231
Body Control Module: Diagrams
Body Control Module - C1 (Pin 1 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15232
Body Control Module - C1 (Pin 26)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15233
Body Control Module - C2 (Pin 1 To 20)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15234
Body Control Module - C2 (Pin 21 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15235
Body Control Module - C3 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15236
Body Control Module - C3 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15237
Body Control Module - C4 (Pin 1 To 15)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15238
Body Control Module - C4 (Pin 16 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15239
Body Control Module - C5 (Pin 1 To 17)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15240
Body Control Module - C5 (Pin 18 To 25)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15241
Body Control Module - C6 (Pin 1 To 18)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Diagrams > Body Control Module - C1 > Page 15242
Body Control Module - C6 (Pin 19 To 25)
Body Control Module - C7 (Pin 1 To 28)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Service and Repair > Body Control Module Replacement
Body Control Module: Service and Repair Body Control Module Replacement
BODY CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. IMPORTANT: If data is not retrieved from the malfunctioning body control module (BCM),
additional time will be required to program the
replacement BCM.
Retrieve data from the malfunctioning BCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
2. Rotate the ignition switch to the OFF position.
3. Remove the radio bezel. 4. Disconnect the BCM electrical harnesses. 5. Remove the BCM from
the instrument panel (I/P) retainer:
1. Pry the BCM tabs from the locking tabs on the underside of the restraint. 2. Slide the BCM out of
the retainer.
INSTALLATION PROCEDURE
1. Install the BCM. 2. Install the radio bezel. 3. Slide the BCM tabs into the slots in the I/P retainer
until the tabs lock into place. 4. Connect the electrical connectors. 5. Program a new or a
remanufactured BCM. Refer to Control Module References. See: Testing and
Inspection/Programming and Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Body Control Systems > Body Control Module > Component Information
> Service and Repair > Body Control Module Replacement > Page 15245
Body Control Module: Service and Repair Body Control Module (BCM) Programming/RPO
Configuration
BODY CONTROL MODULE (BCM) PROGRAMMING/RPO CONFIGURATION
INTRODUCTION
A new body control module (BCM) must be programmed with the latest operating software and
vehicle calibrations. Ensure that the following conditions exist in order to prepare for BCM
programming:
- The battery is fully charged.
- The ignition switch is in the ON position.
- The data link connector (DLC) is accessible.
- All disconnected modules and devices are connected.
PROGRAMMING THE BCM
IMPORTANT: The vehicle will not start and many other functions may not operate properly if a
replacement BCM is not properly set up. The following procedures must be followed:
1. Programming the BCM 2. Learning the restraints ID
IMPORTANT: After the procedure is completed, the personalization settings of the BCM are set to
default settings. Inform the customer that the personalization must be set again.
LEARNING THE RESTRAINTS ID
Navigate on the scan tool to Body Control Module > Module Setup > Setup SDM Primary Key in
BCM, then follow the instructions on the screen.
IMPORTANT: After programming, perform the following to avoid future misdiagnosis:
1. Turn the ignition OFF for 10 seconds. 2. Connect the scan tool to the data link connector. 3. Turn
the ignition ON, with the engine OFF. 4. Use the scan tool in order to retrieve history DTCs from all
modules. 5. Clear all history DTCs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Front Bumper > Front Bumper Cover / Fascia > System
Information > Technical Service Bulletins > Body - TPO Fascia Cleaning Prior to Painting
Front Bumper Cover / Fascia: Technical Service Bulletins Body - TPO Fascia Cleaning Prior to
Painting
INFORMATION
Bulletin No.: 08-08-51-002
Date: March 12, 2008
Subject: New Primer For TPO Fascias and Affected Cleaning Process of Painting Operation
Models: 2009 and Prior Passenger Cars and Trucks 2009 and Prior HUMMER H2, H3
The purpose of this bulletin is to inform the technician that General Motors has made a change in
the primer it uses for TPO plastic for service parts. This new primer comes in several different
colors from five different suppliers. This change affects the cleaning process of the painting
operation. The new process is as follows.
1. Wash with soap and water.
2. Clean with a 50% mix of isopropyl alcohol and water (or a waterborne cleaner). Check with your
paint supplier for product recommendations.
3. Scuff sand per your paint suppliers recommendations.
Note:
The use of a solvent-type cleaner will soften, or begin to dissolve the primer. Base coats do not
have any affect on this primer.
4. Reclean with a 50% mix of isopropyl alcohol and water (or a waterborne cleaner).
All fascias, with the exception of the Corvette, Camaro, and Cadillac XLR, are made of TPO. You
may find other TPO parts with this primer. If the technician has a question as to the type of plastic
they are painting, inspect the back of the part for the plastic symbol (TPO).
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Front Bumper > Front Bumper Cover / Fascia > System
Information > Service and Repair > Front Bumper Fascia Energy Absorber Replacement (Equinox)
Front Bumper Cover / Fascia: Service and Repair Front Bumper Fascia Energy Absorber
Replacement (Equinox)
Front Bumper Fascia Energy Absorber Replacement (Equinox)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Front Bumper > Front Bumper Cover / Fascia > System
Information > Service and Repair > Front Bumper Fascia Energy Absorber Replacement (Equinox) > Page 15254
Front Bumper Cover / Fascia: Service and Repair Fascia Grille Replacement
Fascia Grille Replacement
Removal Procedure
1. Remove the front fascia assembly (3). 2. Remove the front fascia support. 3. Remove the
radiator grille strap (2) from the back of the grille by depressing the grille strap fingers and pushing
through the front of the grille.
4. Remove the screw from the bottom center of the grille. 5. Remove the grille from the front fascia
by releasing the retainers around the perimeter of the grille.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Front Bumper > Front Bumper Cover / Fascia > System
Information > Service and Repair > Front Bumper Fascia Energy Absorber Replacement (Equinox) > Page 15255
1. Position the grille to the front fascia. 2. Install the grille to the front fascia by pushing in to secure
the retainers around the perimeter of the grille.
Notice: Refer to Fastener Notice.
3. Install the screw to the bottom center of the grille.
Tighten the screw to 2 N.m (18 lb in).
4. Install the radiator grille strap into the front fascia and grille by pushing the fingers on the strap
into the grille and fascia until fully secured. 5. Install the front fascia support. 6. Install the front
fascia assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Front Bumper > Front Bumper Cover / Fascia > System
Information > Service and Repair > Front Bumper Fascia Energy Absorber Replacement (Equinox) > Page 15256
Front Bumper Cover / Fascia: Service and Repair Front Bumper Fascia Replacement (Equinox)
Front Bumper Fascia Replacement (Equinox)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Front Bumper > Front Bumper Cover / Fascia > System
Information > Service and Repair > Front Bumper Fascia Energy Absorber Replacement (Equinox) > Page 15257
Front Bumper Cover / Fascia: Service and Repair Front Bumper Fascia Support Replacement
Front Bumper Fascia Support Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Front Bumper > Front Bumper Cover / Fascia > System
Information > Service and Repair > Front Bumper Fascia Energy Absorber Replacement (Equinox) > Page 15258
Front Bumper Cover / Fascia: Service and Repair Front Bumper Fascia Air Deflector Replacement
Front Bumper Fascia Air Deflector Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Front Bumper > Front Bumper Reinforcement > System
Information > Technical Service Bulletins > Body - Polypropylene Energy Absorber Replacement
Front Bumper Reinforcement: Technical Service Bulletins Body - Polypropylene Energy Absorber
Replacement
Bulletin No.: 07-08-63-001
Date: April 17, 2007
INFORMATION
Subject: Information on Repair of Polypropylene Energy Absorbers
Models: 2007 and Prior GM Passenger Cars and Trucks (including Saturn) 2007 and Prior
HUMMER H2, H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to change the repair information. Please discard Corporate Bulletin
Number 63-20-02 (Section 8 - Body and Accessories).
Because the energy absorbers are relatively low in cost to replace, it is now more cost efficient to
replace the energy absorbers whenever they are damaged.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Front Bumper > Front Bumper Reinforcement > System
Information > Technical Service Bulletins > Page 15263
Front Bumper Reinforcement: Service and Repair
Front Bumper Impact Bar Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Rear Bumper > Rear Bumper Cover / Fascia > System
Information > Technical Service Bulletins > Body - TPO Fascia Cleaning Prior to Painting
Rear Bumper Cover / Fascia: Technical Service Bulletins Body - TPO Fascia Cleaning Prior to
Painting
INFORMATION
Bulletin No.: 08-08-51-002
Date: March 12, 2008
Subject: New Primer For TPO Fascias and Affected Cleaning Process of Painting Operation
Models: 2009 and Prior Passenger Cars and Trucks 2009 and Prior HUMMER H2, H3
The purpose of this bulletin is to inform the technician that General Motors has made a change in
the primer it uses for TPO plastic for service parts. This new primer comes in several different
colors from five different suppliers. This change affects the cleaning process of the painting
operation. The new process is as follows.
1. Wash with soap and water.
2. Clean with a 50% mix of isopropyl alcohol and water (or a waterborne cleaner). Check with your
paint supplier for product recommendations.
3. Scuff sand per your paint suppliers recommendations.
Note:
The use of a solvent-type cleaner will soften, or begin to dissolve the primer. Base coats do not
have any affect on this primer.
4. Reclean with a 50% mix of isopropyl alcohol and water (or a waterborne cleaner).
All fascias, with the exception of the Corvette, Camaro, and Cadillac XLR, are made of TPO. You
may find other TPO parts with this primer. If the technician has a question as to the type of plastic
they are painting, inspect the back of the part for the plastic symbol (TPO).
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Rear Bumper > Rear Bumper Cover / Fascia > System
Information > Service and Repair > Rear Bumper Fascia Replacement
Rear Bumper Cover / Fascia: Service and Repair Rear Bumper Fascia Replacement
Rear Bumper Fascia Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Rear Bumper > Rear Bumper Cover / Fascia > System
Information > Service and Repair > Rear Bumper Fascia Replacement > Page 15271
Rear Bumper Cover / Fascia: Service and Repair Rear Bumper Fascia Reflector Replacement
Rear Bumper Fascia Reflector Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Rear Bumper > Rear Bumper Reinforcement > System
Information > Technical Service Bulletins > Body - Polypropylene Energy Absorber Replacement
Rear Bumper Reinforcement: Technical Service Bulletins Body - Polypropylene Energy Absorber
Replacement
Bulletin No.: 07-08-63-001
Date: April 17, 2007
INFORMATION
Subject: Information on Repair of Polypropylene Energy Absorbers
Models: 2007 and Prior GM Passenger Cars and Trucks (including Saturn) 2007 and Prior
HUMMER H2, H3 2005-2007 Saab 9-7X
Supercede:
This bulletin is being revised to change the repair information. Please discard Corporate Bulletin
Number 63-20-02 (Section 8 - Body and Accessories).
Because the energy absorbers are relatively low in cost to replace, it is now more cost efficient to
replace the energy absorbers whenever they are damaged.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Rear Bumper > Rear Bumper Reinforcement > System
Information > Service and Repair > Rear Energy Absorber Replacement
Rear Bumper Reinforcement: Service and Repair Rear Energy Absorber Replacement
Rear Energy Absorber Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Bumper > Rear Bumper > Rear Bumper Reinforcement > System
Information > Service and Repair > Rear Energy Absorber Replacement > Page 15278
Rear Bumper Reinforcement: Service and Repair Rear Bumper Impact Bar Replacement
Rear Bumper Impact Bar Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Cowl > Component Information > Service and Repair
Cowl: Service and Repair
Plenum Upper Panel Replacement
REMOVAL PROCEDURE
CAUTION: Refer to Approved Equipment for Collision Repair Caution in Service Precautions.
1. Disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling
in SIR. 2. Disconnect the negative battery cable. 3. Remove all related panels and components. 4.
Repair as much of the damage as possible to factory specifications. 5. Note the location and
remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to
Anti-Corrosion Treatment and
Repair.
IMPORTANT: Do not damage any inner panels or reinforcements.
6. Locate and drill out all factory welds. Note the number and location of the welds for installation of
the plenum top panel. 7. Remove the damaged plenum top panel.
INSTALLATION PROCEDURE
IMPORTANT:
If the location of the original plug weld holes can not be determined, space the plug weld holes
every 40 mm (1 1/2 in) apart. Some panels may have structural weld-thru adhesive. It is necessary
to replace the weld-thru adhesive with an additional spot weld between each factory spot weld.
1. Drill 8-mm (5/16-in) plug weld holes in the service part as necessary in the locations noted from
the original panel. 2. Prepare all mating surfaces as necessary. 3. Apply GM-approved Weld-Thru
Coating or equivalent to all mating surfaces. Refer to Anti-Corrosion Treatment and Repair. 4.
Position the plenum top panel to the vehicle using 3-dimensional measuring equipment. Clamp the
plenum top panel into place. 5. Plug weld accordingly. 6. Clean and prepare all welded surfaces. 7.
Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to
Anti-Corrosion Treatment and Repair. 8. Paint the repair area.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Cowl > Component Information > Service and Repair > Page 15282
9. Install all related panels and components.
10. Connect the negative battery cable. 11. Enable the SIR system. Refer to SIR Disabling and
Enabling in SIR.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Handle >
Front Door Exterior Handle > System Information > Service and Repair
Front Door Exterior Handle: Service and Repair
FRONT SIDE DOOR OUTSIDE HANDLE REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Handle >
Front Door Interior Handle > System Information > Service and Repair > Door Handle Bezel Replacement (Front Side Door)
Front Door Interior Handle: Service and Repair Door Handle Bezel Replacement (Front Side Door)
Door Handle Bezel Replacement (Front Side Door)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Handle >
Front Door Interior Handle > System Information > Service and Repair > Door Handle Bezel Replacement (Front Side Door)
> Page 15294
Front Door Interior Handle: Service and Repair Door Inside Handle Replacement
DOOR INSIDE HANDLE REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Handle >
Front Door Interior Handle > System Information > Service and Repair > Door Handle Bezel Replacement (Front Side Door)
> Page 15295
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Hinge >
System Information > Service and Repair
Front Door Hinge: Service and Repair
Front Side Door Hinge Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Hinge >
System Information > Service and Repair > Page 15299
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Latch >
System Information > Technical Service Bulletins > Customer Interest for Front Door Latch: > 05-08-64-002B > Apr > 06 >
Body - Door Latches Freezes in Extreme Cold
Front Door Latch: Customer Interest Body - Door Latches Freezes in Extreme Cold
Bulletin No.: 05-08-64-002B
Date: April 03, 2006
TECHNICAL
Subject: Door Latch Freezing in Cold Temperatures (Apply Super Lube)
Models: 2005-2007 GM Passenger Cars and Trucks (Including Saturn) 2003-2006 HUMMER H2
2006 HUMMER H3
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 05-08-64-002A (Section 08 - Body and Accessories).
Condition
Some customers may comment on a door latch freezing due to ice accumulation in cold
temperatures.
Cause
Water from a car wash or off the road may have entered the latch and frozen, causing the detent to
move slowly.
GM Super Lube(R) has been found to be an ideal solution to resolve latch freezing.
Correction
1. Verify that the striker properly engages the latch and that no obstructions are preventing the door
from closing.
Important:
The latch and its backing plate have been removed on the above illustration to show the location
for the lube.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Latch >
System Information > Technical Service Bulletins > Customer Interest for Front Door Latch: > 05-08-64-002B > Apr > 06 >
Body - Door Latches Freezes in Extreme Cold > Page 15308
2. Allow the latch to completely thaw and apply compressed air for two seconds to the latch to force
out any moisture. Refer to the above illustration (slashed area) for the location. Spray GM Super
Lube(R) on BOTH sides of the latch detent lever for approximately two to three seconds. Refer to
the above illustration (slashed area) for the lube location. Repeat for all door latches. Operate the
door latch several times to spread the lubricant on all surfaces.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Door Latch: > 05-08-64-002B >
Apr > 06 > Body - Door Latches Freezes in Extreme Cold
Front Door Latch: All Technical Service Bulletins Body - Door Latches Freezes in Extreme Cold
Bulletin No.: 05-08-64-002B
Date: April 03, 2006
TECHNICAL
Subject: Door Latch Freezing in Cold Temperatures (Apply Super Lube)
Models: 2005-2007 GM Passenger Cars and Trucks (Including Saturn) 2003-2006 HUMMER H2
2006 HUMMER H3
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 05-08-64-002A (Section 08 - Body and Accessories).
Condition
Some customers may comment on a door latch freezing due to ice accumulation in cold
temperatures.
Cause
Water from a car wash or off the road may have entered the latch and frozen, causing the detent to
move slowly.
GM Super Lube(R) has been found to be an ideal solution to resolve latch freezing.
Correction
1. Verify that the striker properly engages the latch and that no obstructions are preventing the door
from closing.
Important:
The latch and its backing plate have been removed on the above illustration to show the location
for the lube.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Door Latch: > 05-08-64-002B >
Apr > 06 > Body - Door Latches Freezes in Extreme Cold > Page 15314
2. Allow the latch to completely thaw and apply compressed air for two seconds to the latch to force
out any moisture. Refer to the above illustration (slashed area) for the location. Spray GM Super
Lube(R) on BOTH sides of the latch detent lever for approximately two to three seconds. Refer to
the above illustration (slashed area) for the lube location. Repeat for all door latches. Operate the
door latch several times to spread the lubricant on all surfaces.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Door Latch: > Page 15315
Front Door Latch: By Symptom
Technical Service Bulletin # 05-08-64-002B Date: 060403
Body - Door Latches Freezes in Extreme Cold
Bulletin No.: 05-08-64-002B
Date: April 03, 2006
TECHNICAL
Subject: Door Latch Freezing in Cold Temperatures (Apply Super Lube)
Models: 2005-2007 GM Passenger Cars and Trucks (Including Saturn) 2003-2006 HUMMER H2
2006 HUMMER H3
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 05-08-64-002A (Section 08 - Body and Accessories).
Condition
Some customers may comment on a door latch freezing due to ice accumulation in cold
temperatures.
Cause
Water from a car wash or off the road may have entered the latch and frozen, causing the detent to
move slowly.
GM Super Lube(R) has been found to be an ideal solution to resolve latch freezing.
Correction
1. Verify that the striker properly engages the latch and that no obstructions are preventing the door
from closing.
Important:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Door Latch: > Page 15316
The latch and its backing plate have been removed on the above illustration to show the location
for the lube.
2. Allow the latch to completely thaw and apply compressed air for two seconds to the latch to force
out any moisture. Refer to the above illustration (slashed area) for the location. Spray GM Super
Lube(R) on BOTH sides of the latch detent lever for approximately two to three seconds. Refer to
the above illustration (slashed area) for the lube location. Repeat for all door latches. Operate the
door latch several times to spread the lubricant on all surfaces.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Technical Service Bulletin # 05-08-64-002B Date: 060403
Body - Door Latches Freezes in Extreme Cold
Bulletin No.: 05-08-64-002B
Date: April 03, 2006
TECHNICAL
Subject: Door Latch Freezing in Cold Temperatures (Apply Super Lube)
Models: 2005-2007 GM Passenger Cars and Trucks (Including Saturn) 2003-2006 HUMMER H2
2006 HUMMER H3
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 05-08-64-002A (Section 08 - Body and Accessories).
Condition
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Door Latch: > Page 15317
Some customers may comment on a door latch freezing due to ice accumulation in cold
temperatures.
Cause
Water from a car wash or off the road may have entered the latch and frozen, causing the detent to
move slowly.
GM Super Lube(R) has been found to be an ideal solution to resolve latch freezing.
Correction
1. Verify that the striker properly engages the latch and that no obstructions are preventing the door
from closing.
Important:
The latch and its backing plate have been removed on the above illustration to show the location
for the lube.
2. Allow the latch to completely thaw and apply compressed air for two seconds to the latch to force
out any moisture. Refer to the above illustration (slashed area) for the location. Spray GM Super
Lube(R) on BOTH sides of the latch detent lever for approximately two to three seconds. Refer to
the above illustration (slashed area) for the lube location. Repeat for all door latches. Operate the
door latch several times to spread the lubricant on all surfaces.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Front Door Latch: > Page 15318
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Latch >
System Information > Technical Service Bulletins > Page 15319
Front Door Latch: Service and Repair
FRONT SIDE DOOR LATCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Latch >
System Information > Technical Service Bulletins > Page 15320
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Limiter >
System Information > Service and Repair
Front Door Limiter: Service and Repair
Front Side Door Check Link Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Panel >
System Information > Service and Repair > Front Side Door Trim Panel Replacement
Front Door Panel: Service and Repair Front Side Door Trim Panel Replacement
Front Side Door Trim Panel Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Panel >
System Information > Service and Repair > Front Side Door Trim Panel Replacement > Page 15328
Front Door Panel: Service and Repair Front Side Door Water Deflector Replacement
Front Side Door Water Deflector Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Panel >
System Information > Service and Repair > Front Side Door Trim Panel Replacement > Page 15329
Front Door Panel: Service and Repair Upper Extension Trim Panel Replacement (Front Side Door)
Upper Extension Trim Panel Replacement (Front Side Door)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Striker >
System Information > Adjustments > Front Side Door Lock Striker Adjustment
Front Door Striker: Adjustments Front Side Door Lock Striker Adjustment
FRONT SIDE DOOR LOCK STRIKER ADJUSTMENT
To determine if striker adjustment is required, proceed as follows:
1. CAUTION: In order to prevent SIR deployment, personal injury, or unnecessary SIR system
repairs, do not strike the door or the door pillar in
the area of the side impact sensor (SIS). Turn OFF the ignition and remove the key when
performing service in the area of the SIS.
Ensure the door is properly aligned within the door opening before proceeding with the striker
adjustment.
2. Close the door onto the striker and note if the door drags on the striker causing the door to move
upward or downward upon contact with the
striker. Also note the closing effort to fully engage the latch.
3. Using a grease pencil, mark around the striker for reference of the original position. Loosen the
striker. 4. Move the striker to eliminate drag on the striker and door latch and to achieve the proper
door position within the door opening. Start with the
up/down position, then position the striker to achieve proper alignment to the door opening. Set the
in/out adjustment for the proper door seal engagement making sure the door closing efforts are
correct.
5. NOTE: Refer to Fastener Notice.
Tighten the striker bolts.
Tighten the door striker bolts to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Striker >
System Information > Adjustments > Front Side Door Lock Striker Adjustment > Page 15334
Front Door Striker: Adjustments Lock Striker Adjustment
LOCK STRIKER ADJUSTMENT
1. IMPORTANT: Make certain the liftgate is properly aligned within the liftgate opening before
proceeding with the striker adjustment.
Close the liftgate onto the striker and note if liftgate drags on striker causing the liftgate to move
side to side upon contact with the striker. Also note closing efforts to fully engage latch.
2. Mark around the striker with a grease pencil for reference of original position. 3. Loosen striker
bolts. 4. Move the striker to eliminate drag on striker and liftgate latch and to achieve proper liftgate
position within the liftgate opening. 5. Align the left/right liftgate position, then position the striker to
achieve proper alignment to liftgate opening. 6. Align the in/out adjustment for proper liftgate seal
engagement making sure the liftgate closing efforts are correct.
7. NOTE: Refer to Fastener Notice.
Verify correct alignment of striker and tighten striker bolts.
Tighten the bolts to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Striker >
System Information > Adjustments > Page 15335
Front Door Striker: Service and Repair
FRONT SIDE DOOR LOCK STRIKER REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Weatherstrip
> Component Information > Service and Repair
Front Door Weatherstrip: Service and Repair
Front Door Opening Weatherstrip Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Window
Glass > System Information > Technical Service Bulletins > Body - Vehicle Glass Distortion Information
Front Door Window Glass: Technical Service Bulletins Body - Vehicle Glass Distortion Information
INFORMATION
Bulletin No.: 00-08-48-005D
Date: September 10, 2010
Subject: Distortion in Outer Surface of Vehicle Glass
Models:
2011 and Prior GM Passenger Cars and Trucks 2009 and Prior HUMMER H2 2010 and Prior
HUMMER H3 2005-2009 Saab 9-7X 2010 and Prior Saturn
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 00-08-48-005C (Section 08 - Body and Accessories).
Distortion in the outer surface of the windshield glass, door glass or backlite glass may appear after
the vehicle has:
- Accumulated some mileage.
- Been frequently washed in automatic car washes, particularly "touchless" car washes.
This distortion may look like a subtle orange peel pattern, or may look like a drip or sag etched into
the surface of the glass.
Some car wash solutions contain a buffered solution of hydrofluoric acid which is used to clean the
glass. This should not cause a problem if used in the correct concentration. However, if not used
correctly, hydrofluoric acid will attack the glass, and over time, will cause visual distortion in the
outer surface of the glass which cannot be removed by scraping or polishing.
If this condition is suspected, look at the area of the windshield under the wipers or below the belt
seal on the side glass. The area of the glass below the wipers or belt seal will not be affected and
what looks like a drip or sag may be apparent at the edge of the wiper or belt seal. You may also
see a line on the glass where the wiper blade or the belt seal contacts the glass.
Important The repair will require replacing the affected glass and is not a result of a defect in
material or workmanship. Therefore, is not covered by New Vehicle Warranty.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Window
Glass > System Information > Technical Service Bulletins > Body - Vehicle Glass Distortion Information > Page 15343
Front Door Window Glass: Technical Service Bulletins Body - Side Window Chipping Information
INFORMATION
Bulletin No.: 06-08-64-001B
Date: October 20, 2009
Subject: Information on Side Door Window Glass Chipping Caused by Hanging Vehicle Key Lock
Box
Models:
2010 and Prior Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2, H3
2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add vehicles and model years and to include all types of
door window glass. Please discard Corporate Bulletin Number 06-08-64-001A (Section 08 - Body &
Accessories).
- In several warranty parts review cases, side door window glass was observed with a chip or chips
on the top side of the window glass. Dealer contacts confirmed that they use a vehicle key lock box
on the front side door window glass.
- A random selection of side door glass returns will be conducted to confirm adherence. If a side
door glass is discovered with a chip or chips in the location previously described, the side door
glass will be returned to the dealership for debit.
Example of Side Door Glass
- DO NOT place a vehicle key lock box on a side door window glass.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Window
Glass > System Information > Technical Service Bulletins > Body - Vehicle Glass Distortion Information > Page 15344
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Window
Motor > Component Information > Service and Repair
Front Door Window Motor: Service and Repair
FRONT SIDE DOOR WINDOW REGULATOR MOTOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Window
Regulator > System Information > Service and Repair
Front Door Window Regulator: Service and Repair
FRONT SIDE DOOR WINDOW REGULATOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Front Door > Front Door Window
Regulator > System Information > Service and Repair > Page 15351
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Handle >
Rear Door Exterior Handle > System Information > Service and Repair
Rear Door Exterior Handle: Service and Repair
REAR SIDE DOOR OUTSIDER HANDLE REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Hinge >
System Information > Service and Repair
Rear Door Hinge: Service and Repair
Rear Side Door Hinge Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Hinge >
System Information > Service and Repair > Page 15360
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Latch >
System Information > Technical Service Bulletins > Customer Interest for Rear Door Latch: > 05-08-64-002B > Apr > 06 >
Body - Door Latches Freezes in Extreme Cold
Rear Door Latch: Customer Interest Body - Door Latches Freezes in Extreme Cold
Bulletin No.: 05-08-64-002B
Date: April 03, 2006
TECHNICAL
Subject: Door Latch Freezing in Cold Temperatures (Apply Super Lube)
Models: 2005-2007 GM Passenger Cars and Trucks (Including Saturn) 2003-2006 HUMMER H2
2006 HUMMER H3
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 05-08-64-002A (Section 08 - Body and Accessories).
Condition
Some customers may comment on a door latch freezing due to ice accumulation in cold
temperatures.
Cause
Water from a car wash or off the road may have entered the latch and frozen, causing the detent to
move slowly.
GM Super Lube(R) has been found to be an ideal solution to resolve latch freezing.
Correction
1. Verify that the striker properly engages the latch and that no obstructions are preventing the door
from closing.
Important:
The latch and its backing plate have been removed on the above illustration to show the location
for the lube.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Latch >
System Information > Technical Service Bulletins > Customer Interest for Rear Door Latch: > 05-08-64-002B > Apr > 06 >
Body - Door Latches Freezes in Extreme Cold > Page 15369
2. Allow the latch to completely thaw and apply compressed air for two seconds to the latch to force
out any moisture. Refer to the above illustration (slashed area) for the location. Spray GM Super
Lube(R) on BOTH sides of the latch detent lever for approximately two to three seconds. Refer to
the above illustration (slashed area) for the lube location. Repeat for all door latches. Operate the
door latch several times to spread the lubricant on all surfaces.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Rear Door Latch: > 05-08-64-002B >
Apr > 06 > Body - Door Latches Freezes in Extreme Cold
Rear Door Latch: All Technical Service Bulletins Body - Door Latches Freezes in Extreme Cold
Bulletin No.: 05-08-64-002B
Date: April 03, 2006
TECHNICAL
Subject: Door Latch Freezing in Cold Temperatures (Apply Super Lube)
Models: 2005-2007 GM Passenger Cars and Trucks (Including Saturn) 2003-2006 HUMMER H2
2006 HUMMER H3
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 05-08-64-002A (Section 08 - Body and Accessories).
Condition
Some customers may comment on a door latch freezing due to ice accumulation in cold
temperatures.
Cause
Water from a car wash or off the road may have entered the latch and frozen, causing the detent to
move slowly.
GM Super Lube(R) has been found to be an ideal solution to resolve latch freezing.
Correction
1. Verify that the striker properly engages the latch and that no obstructions are preventing the door
from closing.
Important:
The latch and its backing plate have been removed on the above illustration to show the location
for the lube.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Rear Door Latch: > 05-08-64-002B >
Apr > 06 > Body - Door Latches Freezes in Extreme Cold > Page 15375
2. Allow the latch to completely thaw and apply compressed air for two seconds to the latch to force
out any moisture. Refer to the above illustration (slashed area) for the location. Spray GM Super
Lube(R) on BOTH sides of the latch detent lever for approximately two to three seconds. Refer to
the above illustration (slashed area) for the lube location. Repeat for all door latches. Operate the
door latch several times to spread the lubricant on all surfaces.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Rear Door Latch: > Page 15376
Rear Door Latch: By Symptom
Technical Service Bulletin # 05-08-64-002B Date: 060403
Body - Door Latches Freezes in Extreme Cold
Bulletin No.: 05-08-64-002B
Date: April 03, 2006
TECHNICAL
Subject: Door Latch Freezing in Cold Temperatures (Apply Super Lube)
Models: 2005-2007 GM Passenger Cars and Trucks (Including Saturn) 2003-2006 HUMMER H2
2006 HUMMER H3
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 05-08-64-002A (Section 08 - Body and Accessories).
Condition
Some customers may comment on a door latch freezing due to ice accumulation in cold
temperatures.
Cause
Water from a car wash or off the road may have entered the latch and frozen, causing the detent to
move slowly.
GM Super Lube(R) has been found to be an ideal solution to resolve latch freezing.
Correction
1. Verify that the striker properly engages the latch and that no obstructions are preventing the door
from closing.
Important:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Rear Door Latch: > Page 15377
The latch and its backing plate have been removed on the above illustration to show the location
for the lube.
2. Allow the latch to completely thaw and apply compressed air for two seconds to the latch to force
out any moisture. Refer to the above illustration (slashed area) for the location. Spray GM Super
Lube(R) on BOTH sides of the latch detent lever for approximately two to three seconds. Refer to
the above illustration (slashed area) for the lube location. Repeat for all door latches. Operate the
door latch several times to spread the lubricant on all surfaces.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Technical Service Bulletin # 05-08-64-002B Date: 060403
Body - Door Latches Freezes in Extreme Cold
Bulletin No.: 05-08-64-002B
Date: April 03, 2006
TECHNICAL
Subject: Door Latch Freezing in Cold Temperatures (Apply Super Lube)
Models: 2005-2007 GM Passenger Cars and Trucks (Including Saturn) 2003-2006 HUMMER H2
2006 HUMMER H3
Supercede:
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin
Number 05-08-64-002A (Section 08 - Body and Accessories).
Condition
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Rear Door Latch: > Page 15378
Some customers may comment on a door latch freezing due to ice accumulation in cold
temperatures.
Cause
Water from a car wash or off the road may have entered the latch and frozen, causing the detent to
move slowly.
GM Super Lube(R) has been found to be an ideal solution to resolve latch freezing.
Correction
1. Verify that the striker properly engages the latch and that no obstructions are preventing the door
from closing.
Important:
The latch and its backing plate have been removed on the above illustration to show the location
for the lube.
2. Allow the latch to completely thaw and apply compressed air for two seconds to the latch to force
out any moisture. Refer to the above illustration (slashed area) for the location. Spray GM Super
Lube(R) on BOTH sides of the latch detent lever for approximately two to three seconds. Refer to
the above illustration (slashed area) for the lube location. Repeat for all door latches. Operate the
door latch several times to spread the lubricant on all surfaces.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Latch >
System Information > Technical Service Bulletins > All Technical Service Bulletins for Rear Door Latch: > Page 15379
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Latch >
System Information > Technical Service Bulletins > Page 15380
Rear Door Latch: Service and Repair
REAR DOOR LATCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Latch >
System Information > Technical Service Bulletins > Page 15381
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Limiter >
System Information > Service and Repair
Rear Door Limiter: Service and Repair
Rear Side Door Check Link Replacement
Removal Procedure
Caution: In order to prevent SIR deployment, personal injury, or unnecessary SIR system repairs,
do not strike the door or the door pillar in the area of the side impact sensor (SIS). Turn OFF the
ignition and remove the key when performing service in the area of the SIS.
1. Remove the rear door trim panel. 2. Remove the rear door lower speaker. 3. Remove the check
link bolts at the hinge pillar.
4. Remove the check link nuts from the door frame. 5. Remove the check link from the door
through the speaker opening.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Limiter >
System Information > Service and Repair > Page 15385
Installation Procedure
1. Install the check link to the door frame.
Notice: Refer to Fastener Notice.
2. Install the nuts to the check link.
Tighten the nuts to 10 N.m (89 lb in).
3. Install the check link bolts.
Tighten the bolts to 10 N.m (89 lb in).
4. Install the rear door lower speaker. 5. Install the rear door trim panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Panel >
System Information > Service and Repair > Door Handle Bezel Replacement (Rear Side Door)
Rear Door Panel: Service and Repair Door Handle Bezel Replacement (Rear Side Door)
Door Handle Bezel Replacement (Rear Side Door)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Panel >
System Information > Service and Repair > Door Handle Bezel Replacement (Rear Side Door) > Page 15390
Rear Door Panel: Service and Repair Rear Side Door Trim Panel Replacement
Rear Side Door Trim Panel Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Panel >
System Information > Service and Repair > Door Handle Bezel Replacement (Rear Side Door) > Page 15391
Rear Door Panel: Service and Repair Rear Side Door Water Deflector Replacement
Rear Side Door Water Deflector Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Panel >
System Information > Service and Repair > Door Handle Bezel Replacement (Rear Side Door) > Page 15392
Rear Door Panel: Service and Repair Upper Extension Trim Panel Replacement (Rear Side Door)
Upper Extension Trim Panel Replacement (Rear Side Door)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Striker >
System Information > Adjustments
Rear Door Striker: Adjustments
REAR SIDE DOOR LOCK STRIKER ADJUSTMENT
To determine if striker adjustment is required, proceed as follows:
1. CAUTION: In order to prevent SIR deployment, personal injury, or unnecessary SIR system
repairs, do not strike the door or the door pillar in
the area of the side impact sensor (SIS). Turn OFF the ignition and remove the key when
performing service in the area of the SIS.
Ensure the door is properly aligned within the door opening before proceeding with the striker
adjustment.
2. Close the door onto the striker and note if the door drags on the striker causing the door to move
upward or downward upon contact with the
striker. Also note the closing effort to fully engage the latch.
3. Using a grease pencil, mark around the striker for reference of the original position. Loosen the
striker. 4. Move the striker to eliminate drag on the striker and door latch and to achieve the proper
door position within the door opening. Start with the
up/down position, then position the striker to achieve proper alignment to the door opening. Set the
in/out adjustment for the proper door seal engagement making sure the door closing efforts are
correct.
5. NOTE: Refer to Fastener Notice.
Tighten the striker bolts.
Tighten the door striker bolts to 25 N.m (18 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Striker >
System Information > Adjustments > Page 15396
Rear Door Striker: Service and Repair
REAR SIDE DOOR STRIKER REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Weatherstrip
> Component Information > Service and Repair
Rear Door Weatherstrip: Service and Repair
Rear Door Opening Weatherstrip Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Window
Motor > Component Information > Service and Repair
Rear Door Window Motor: Service and Repair
REAR SIDE DOOR WINDOW REGULATOR MOTOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Window
Regulator > System Information > Service and Repair
Rear Door Window Regulator: Service and Repair
REAR SIDE DOOR WINDOW REGULATOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Doors > Rear Door > Rear Door Window
Regulator > System Information > Service and Repair > Page 15406
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Fuel Door > Component Information > Service
and Repair
Fuel Door: Service and Repair
Fuel Tank Filler Door Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Hood > Hood Hinge > Component Information
> Service and Repair
Hood Hinge: Service and Repair
Hood Hinge Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Hood > Hood Insulator / Pad > Component
Information > Service and Repair
Hood Insulator / Pad: Service and Repair
Hood Insulator Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Hood > Hood Latch > Component Information
> Service and Repair > Hood Latch Replacement
Hood Latch: Service and Repair Hood Latch Replacement
Hood Latch Replacement (Equinox)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Hood > Hood Latch > Component Information
> Service and Repair > Hood Latch Replacement > Page 15421
Hood Latch: Service and Repair Hood Secondary Latch Replacement
Hood Secondary Latch Replacement (Equinox)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Hood > Hood Latch Release Cable >
Component Information > Service and Repair
Hood Latch Release Cable: Service and Repair
Hood Latch Release Cable Replacement
Removal Procedure
1. Open the hood. 2. Remove the hood latch.
3. Remove the release cable from the structure. Note the routing of the hood cable in the engine
compartment for installation.
4. Inside the vehicle, remove the left front carpet retainer. Refer to Front Carpet Retainer
Replacement. 5. Reposition the carpet aside to expose release handle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Hood > Hood Latch Release Cable >
Component Information > Service and Repair > Page 15425
6. Pull release handle to up position. 7. Pry back front of handle slip to disengage from the hinge
pillar. 8. Remove the hood hinge cable grommet from the front of the dash and remove the cable
from the core support.
Installation Procedure
1. Install the hood hinge cable and grommet through the front of the dash. 2. Slide the hood release
handle into the hinge pillar and secure into place.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Hood > Hood Latch Release Cable >
Component Information > Service and Repair > Page 15426
3. Reposition the carpet and install the front carpet retainer. Refer to Front Carpet Retainer
Replacement.
4. Route the hood cable through the body structure. 5. Install the hood latch. 6. Inspect the hood
latch cable for proper operation. 7. Close the hood.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Hood > Hood Shock / Support > Component
Information > Service and Repair
Hood Shock / Support: Service and Repair
Hood Hold-Open Rod Replacement (Equinox)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Hood > Hood Switch / Sensor > Hood
Sensor/Switch (For Alarm) > Component Information > Diagrams
Hood Sensor/Switch (For Alarm): Diagrams
Immobilizer Connector End Views
Hood Ajar Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Hood > Hood Weatherstrip > Component
Information > Service and Repair
Hood Weatherstrip: Service and Repair
Hood Rear Seal Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass
Technical Service Bulletin # 07154B Date: 070627
Recall - Windshield/Liftgate Glass/Side Stationary Glass
Subject: F/CMVSS Noncompliance - Windshield/Liftgate Glass/Side Stationary Glass Retention Replace Glass # 07154B - (06/27/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
THE LABOR OPERATION CODE FOR THE FLOOR PLAN REIMBURSEMENT AND THE
SECOND PID HAVE BEEN REVISED. IN ADDITION, THE PART INFORMATION SECTION HAS
BEEN REVISED TO ASSIST IN DETERMINING IF THE RIGHT QUARTER WINDOW IS
EQUIPPED WITH AN ANTENNA.
PLEASE DISCARD ALL COPIES OF BULLETIN 07154A, ISSUED JUNE 2007.
Vehicles involved in this recall were placed on Stop Delivery on Thursday, May 31, 2007, via
message # WIL20070008 (US) or email message (Canada).
^ Dealers who have more than one vehicle in inventory will be contacted by GM to arrange for
return of the vehicles to GM. Unsold vehicles are not to be released to customers. These vehicles
will be listed in the report titled, "Vehicles Returned to GM", sent with the Administrative Message
releasing this bulletin.
^ Dealers who have only one vehicle in inventory are to replace the windshield, liftgate glass, and
side quarter (stationary) glass following the instructions contained in this bulletin. These vehicles
will be listed in the report titled, "Dealer Repaired Vehicles", sent with the Administrative Message
releasing this bulletin.
^ Customer vehicles, export vehicles, and certain vehicles located in remote areas are to have the
windshield, liftgate glass, and side quarter (stationary) glass replaced following the instructions
contained in this bulletin. These vehicles will be listed in the report titled, "Dealer Repaired
Vehicles", sent with the Administrative Message releasing this bulletin.
See details in the bulletin for more information.
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent model
vehicles fail to conform to Federal/Canada Motor Vehicle Safety Standard (MVSS) 212, Windshield
Mounting. On some of these vehicles, an incorrect primer may have been used when installing the
windshield. In the event of a crash, the windshield may not be retained to the extent required by the
Standard, increasing the risk of personal injuries to the vehicle occupants.
The same primer may have also been applied to the liftgate glass and the side stationary glass.
Correction
For vehicles in customer possession, export vehicles, certain vehicles located in remote areas, and
inventory vehicles identified in the "Dealer Repaired Vehicles" report, dealers are to replace the
windshield, liftgate glass, and the side stationary glass. A listing of vehicles to repair, titled "Dealer
Repaired Vehicles", has been sent in the Administrative Message releasing this bulletin.
For vehicles in dealer inventory (greater than one), dealers are to hold the vehicle. The General
Motors Dealer Business Center will contact dealers to arrange for return of the vehicles to GM. The
vehicle transport company that normally services the dealership will facilitate the vehicle pick up.
The vehicles will then be inspected, repaired if necessary, and returned to dealers as quickly as
possible. A listing of vehicles to be returned to GM, titled "Vehicles Returned to GM", has been sent
in the Administrative Message releasing this bulletin.
Each vehicle will be returned with a completed Inspection/Repair Worksheet in the vehicle. This
document will clearly indicate if the vehicle passed or failed the inspection. Vehicles that pass
require no further action and can be released for sale/delivery. Vehicles that fail the inspection will
require replacement of the specific fixed glass noted on the worksheet. This could be the
windshield only, or the windshield and right side rear quarter, or the liftgate and left side rear
quarter. Once the discrepant glass is replaced, the vehicle can be released for sale/delivery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 15446
Vehicles Involved
Parts Information
Floor Plan Reimbursement
Dealers in possession of vehicles included in the Stop Delivery are eligible for reimbursement of
floor plan expense upon completion of this recall. This reimbursement is limited to the number of
days from the Stop Delivery message sent May 31, 2007, to the date the vehicle is either returned
by GM or repaired by the dealer, whichever is applicable. Floor plan reimbursement beyond these
dates is not allowed. The amount of reimbursement should be charged as a net amount expense
using the recall labor operation provided.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 15447
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 15448
Submit a Product Recall Claim with the information shown.
Customer Notification - For US and Canada
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 15449
identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a
reasonable allowance for depreciation. To avoid having to provide these burdensome remedies,
every effort must be made to promptly schedule an appointment with each customer and to repair
their vehicle as soon as possible. In the recall notification letters, customers are told how to contact
the US National Highway Traffic Safety Administration if the recall is not completed within a
reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. under title 49, section 30112 of the United states code, it is illegal for
a dealer to sell an new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Important:
This service procedure is to be used on delivered vehicles export vehicles, certain vehicles located
in remote areas, and inventory vehicles identified in the "Dealer Repaired Vehicle" report. If a
vehicle has been delivered to a customer and the VIN is not on the report, contact your AVM (US)
District Service/District Fixed Operations Manager (Canada) for approval prior to repairs.
This service procedure should also be used on any vehicle identified during the GM inspection as
needing the replacement of a specific piece glass any glass that needs to be replaced will be
clearly indicated on the Inspection/Repair Worksheet inside the vehicle. The inspectors will also
mark each "bad" piece of glass with a large "X" using a yellow grease marker.
Important:
GM Branded glass must be used for this repair. If this repair will be sublet, inform the installer that
GM branded glass MUST be used for this repair and provide them with a copy of the service
procedure found in this bulletin. There are unique instructions required when replacing the glass in
these vehicles.
Tools and Supplies Required
^ J 24402 A Glass Sealant Cold Knife Remover
^ J 39032 Stationary Glass Removal Tool
^ Isopropyl Alcohol or Equivalent
^ Cartridge-Type Caulking Gun
^ Commercial-Type Utility Knife
^ Razor Blade Scraper
^ Suction Cups
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 15450
^ Plastic Paddle
Important:
Carefully review the supplemental glass removal instructions below. Refer to SI for a complete list
of tools, supplies, and vehicle trim removal and installation procedures. The urethane and primer
instructions in this supplement replace the instructions published in SI for front windshield, liftgate
window, and quarter windows.
Removing the Glass
1. Cut the glass out by holding the cut-out tool to the edge of the glass with common glass removal
technique.
2. Prepare the window opening by cutting the excess urethane from the body.
2.1. During the cut-out process, pull and peel the urethane intermittently in a manner that will
separate the urethane from the flange.
2.2. Examine and check for securely bonded urethane, removing any loose urethane.
2.3. If the urethane is securely bonded, skim-cut the urethane leaving 0.5 mm (0.020 in) to 2 mm
(0.080 in) on the flange.
2.4. Cut the urethane to remove any ridges, notches, or divots.
2.5. Clean all loose pieces of urethane from the opening.
3. Repair the body bonding surface.
3.1. Locate any areas where the primer/urethane did not adhere to the paint surface.
3.2. If residual primer exists adjacent to the bonding area, remove it by sanding/de-gloss of topcoat
with 200 grit GM automotive grade sandpaper.
3.3. Clean the bonding surface using a low-lint paint shop quality rag dampened with the glass
bonding adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
Notice:
DO NOT apply the black body primer on the existing, urethane bead
3.4. Apply black body primer to the topcoat areas where the previous primer/urethane did not
adhere, and as needed adjacent to the skim-cut bead. Apply to any exposed metal non-class A
surface (viewable paint surface after re-trim).
3.5. Allow the black body primer to dry per the primer manufacturer's requirements prior to
installing the glass.
Glass Preparation
1. The glass must be clean, dry, and free of contaminates prior to the primer application.
Wipe the glass with a clean, low-lint, paint shop quality rag dampened with the glass bonding
adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
2. Allow the solvent to fully flash off prior to the application of the glass primer(s).
NOTICE:
The black glass primer application must be Continuous and streak-free in the bonding area.
3. Apply the glass primer(s) to the glass blackout (frit) per the adhesive/primer manufacturer's
requirements using the original/provided dimensions and locations.
Re-apply the black glass primer if a second coat is necessary. If clear primer is used, do not
re-apply the primer on the black. Use black glass primer on black primer only.
Urethane Application to the Glass
1. Apply a continuous bead of urethane adhesive over the previously applied glass primers using
the original/provided dimensions and locations. The bead should be a minimum of 14 mm (0.6 in)
high and 8 mm (0.3 in) wide at the base, in the shape of a blunt triangle.
NOTICE:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 15451
Use of an alternative method of urethane application "bead applied to body", may be used as
required/needed.
Notice:
At no time should the applied urethane exceed 5 minutes prior to glass installation.
2. Install the glass to the vehicle within 5 minutes of the urethane application.
3. If the 5 minute limit is exceeded, scrape/remove the urethane and reapply a new bead.
4. Upon installation, check the left / right positioning (centering) and lightly press the glass into
position.
5. Position the glass to ensure that the rear edge of the upper reveal molding does not gap to the
roof surface, by shifting the windshield upward.
6. Apply masking tape to hold the glass in place during the urethane cure. Use a tape that will not
leave adhesive residue on the vehicle upon removal.
7. Clean any excess urethane adhesive on the show surfaces by wiping immediately with a paint
shop quality rag dampened with the glass bonding adhesive manufacturer's recommended
cleaning solvent.
8. Remove the masking tape after two hours.
Service Procedure
1. Remove the windshield, liftgate window, and quarter windows from the vehicle. Refer to
Windshield Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI
for window removal instructions.
2. Replace the windshield, liftgate window, and quarter windows. Refer to Windshield
Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI for window
installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 15452
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 15453
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > NHTSA07V242000 > Jun > 07
> Recall 07V242000: Windshield/Liftgate/Quarter Glass
Liftgate Window Glass: Recalls Recall 07V242000: Windshield/Liftgate/Quarter Glass
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V242000 MFR'S
REPORT DATE: June 13, 2007
COMPONENT: Visibility: Windshield
POTENTIAL NUMBER OF UNITS AFFECTED: 6213
SUMMARY: Certain vehicles fail to conform to the requirements of Federal Motor Vehicle Safety
Standard No. 212, "Windshield Mounting." An incorrect primer may have been used when installing
the windshield. The same primer may have also been applied to the liftgate glass and the side
stationary glass.
CONSEQUENCE: In the event of a crash, the windshield may not be retained to the extent
required by the standard, increasing the risk of personal injuries to the vehicle occupants.
REMEDY: Dealers will replace the windshield, the liftgate glass, and the side stationary glass. The
recall began on June 14, 2007. Owners may contact Chevrolet at 1-800-630-2438 or Pontiac at
1-800-620-7668.
NOTES: GM recall No. 07154. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B
> Jun > 07 > Recall - Windshield/Liftgate Glass/Side Stationary Glass
Technical Service Bulletin # 07154B Date: 070627
Recall - Windshield/Liftgate Glass/Side Stationary Glass
Subject: F/CMVSS Noncompliance - Windshield/Liftgate Glass/Side Stationary Glass Retention Replace Glass # 07154B - (06/27/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
THE LABOR OPERATION CODE FOR THE FLOOR PLAN REIMBURSEMENT AND THE
SECOND PID HAVE BEEN REVISED. IN ADDITION, THE PART INFORMATION SECTION HAS
BEEN REVISED TO ASSIST IN DETERMINING IF THE RIGHT QUARTER WINDOW IS
EQUIPPED WITH AN ANTENNA.
PLEASE DISCARD ALL COPIES OF BULLETIN 07154A, ISSUED JUNE 2007.
Vehicles involved in this recall were placed on Stop Delivery on Thursday, May 31, 2007, via
message # WIL20070008 (US) or email message (Canada).
^ Dealers who have more than one vehicle in inventory will be contacted by GM to arrange for
return of the vehicles to GM. Unsold vehicles are not to be released to customers. These vehicles
will be listed in the report titled, "Vehicles Returned to GM", sent with the Administrative Message
releasing this bulletin.
^ Dealers who have only one vehicle in inventory are to replace the windshield, liftgate glass, and
side quarter (stationary) glass following the instructions contained in this bulletin. These vehicles
will be listed in the report titled, "Dealer Repaired Vehicles", sent with the Administrative Message
releasing this bulletin.
^ Customer vehicles, export vehicles, and certain vehicles located in remote areas are to have the
windshield, liftgate glass, and side quarter (stationary) glass replaced following the instructions
contained in this bulletin. These vehicles will be listed in the report titled, "Dealer Repaired
Vehicles", sent with the Administrative Message releasing this bulletin.
See details in the bulletin for more information.
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent model
vehicles fail to conform to Federal/Canada Motor Vehicle Safety Standard (MVSS) 212, Windshield
Mounting. On some of these vehicles, an incorrect primer may have been used when installing the
windshield. In the event of a crash, the windshield may not be retained to the extent required by the
Standard, increasing the risk of personal injuries to the vehicle occupants.
The same primer may have also been applied to the liftgate glass and the side stationary glass.
Correction
For vehicles in customer possession, export vehicles, certain vehicles located in remote areas, and
inventory vehicles identified in the "Dealer Repaired Vehicles" report, dealers are to replace the
windshield, liftgate glass, and the side stationary glass. A listing of vehicles to repair, titled "Dealer
Repaired Vehicles", has been sent in the Administrative Message releasing this bulletin.
For vehicles in dealer inventory (greater than one), dealers are to hold the vehicle. The General
Motors Dealer Business Center will contact dealers to arrange for return of the vehicles to GM. The
vehicle transport company that normally services the dealership will facilitate the vehicle pick up.
The vehicles will then be inspected, repaired if necessary, and returned to dealers as quickly as
possible. A listing of vehicles to be returned to GM, titled "Vehicles Returned to GM", has been sent
in the Administrative Message releasing this bulletin.
Each vehicle will be returned with a completed Inspection/Repair Worksheet in the vehicle. This
document will clearly indicate if the vehicle passed or failed the inspection. Vehicles that pass
require no further action and can be released for sale/delivery. Vehicles that fail the inspection will
require replacement of the specific fixed glass noted on the worksheet. This could be the
windshield only, or the windshield and right side rear quarter, or the liftgate and left side rear
quarter. Once the discrepant glass is replaced, the vehicle can be released for sale/delivery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B
> Jun > 07 > Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 15463
Vehicles Involved
Parts Information
Floor Plan Reimbursement
Dealers in possession of vehicles included in the Stop Delivery are eligible for reimbursement of
floor plan expense upon completion of this recall. This reimbursement is limited to the number of
days from the Stop Delivery message sent May 31, 2007, to the date the vehicle is either returned
by GM or repaired by the dealer, whichever is applicable. Floor plan reimbursement beyond these
dates is not allowed. The amount of reimbursement should be charged as a net amount expense
using the recall labor operation provided.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B
> Jun > 07 > Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 15464
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B
> Jun > 07 > Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 15465
Submit a Product Recall Claim with the information shown.
Customer Notification - For US and Canada
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B
> Jun > 07 > Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 15466
identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a
reasonable allowance for depreciation. To avoid having to provide these burdensome remedies,
every effort must be made to promptly schedule an appointment with each customer and to repair
their vehicle as soon as possible. In the recall notification letters, customers are told how to contact
the US National Highway Traffic Safety Administration if the recall is not completed within a
reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. under title 49, section 30112 of the United states code, it is illegal for
a dealer to sell an new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Important:
This service procedure is to be used on delivered vehicles export vehicles, certain vehicles located
in remote areas, and inventory vehicles identified in the "Dealer Repaired Vehicle" report. If a
vehicle has been delivered to a customer and the VIN is not on the report, contact your AVM (US)
District Service/District Fixed Operations Manager (Canada) for approval prior to repairs.
This service procedure should also be used on any vehicle identified during the GM inspection as
needing the replacement of a specific piece glass any glass that needs to be replaced will be
clearly indicated on the Inspection/Repair Worksheet inside the vehicle. The inspectors will also
mark each "bad" piece of glass with a large "X" using a yellow grease marker.
Important:
GM Branded glass must be used for this repair. If this repair will be sublet, inform the installer that
GM branded glass MUST be used for this repair and provide them with a copy of the service
procedure found in this bulletin. There are unique instructions required when replacing the glass in
these vehicles.
Tools and Supplies Required
^ J 24402 A Glass Sealant Cold Knife Remover
^ J 39032 Stationary Glass Removal Tool
^ Isopropyl Alcohol or Equivalent
^ Cartridge-Type Caulking Gun
^ Commercial-Type Utility Knife
^ Razor Blade Scraper
^ Suction Cups
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B
> Jun > 07 > Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 15467
^ Plastic Paddle
Important:
Carefully review the supplemental glass removal instructions below. Refer to SI for a complete list
of tools, supplies, and vehicle trim removal and installation procedures. The urethane and primer
instructions in this supplement replace the instructions published in SI for front windshield, liftgate
window, and quarter windows.
Removing the Glass
1. Cut the glass out by holding the cut-out tool to the edge of the glass with common glass removal
technique.
2. Prepare the window opening by cutting the excess urethane from the body.
2.1. During the cut-out process, pull and peel the urethane intermittently in a manner that will
separate the urethane from the flange.
2.2. Examine and check for securely bonded urethane, removing any loose urethane.
2.3. If the urethane is securely bonded, skim-cut the urethane leaving 0.5 mm (0.020 in) to 2 mm
(0.080 in) on the flange.
2.4. Cut the urethane to remove any ridges, notches, or divots.
2.5. Clean all loose pieces of urethane from the opening.
3. Repair the body bonding surface.
3.1. Locate any areas where the primer/urethane did not adhere to the paint surface.
3.2. If residual primer exists adjacent to the bonding area, remove it by sanding/de-gloss of topcoat
with 200 grit GM automotive grade sandpaper.
3.3. Clean the bonding surface using a low-lint paint shop quality rag dampened with the glass
bonding adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
Notice:
DO NOT apply the black body primer on the existing, urethane bead
3.4. Apply black body primer to the topcoat areas where the previous primer/urethane did not
adhere, and as needed adjacent to the skim-cut bead. Apply to any exposed metal non-class A
surface (viewable paint surface after re-trim).
3.5. Allow the black body primer to dry per the primer manufacturer's requirements prior to
installing the glass.
Glass Preparation
1. The glass must be clean, dry, and free of contaminates prior to the primer application.
Wipe the glass with a clean, low-lint, paint shop quality rag dampened with the glass bonding
adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
2. Allow the solvent to fully flash off prior to the application of the glass primer(s).
NOTICE:
The black glass primer application must be Continuous and streak-free in the bonding area.
3. Apply the glass primer(s) to the glass blackout (frit) per the adhesive/primer manufacturer's
requirements using the original/provided dimensions and locations.
Re-apply the black glass primer if a second coat is necessary. If clear primer is used, do not
re-apply the primer on the black. Use black glass primer on black primer only.
Urethane Application to the Glass
1. Apply a continuous bead of urethane adhesive over the previously applied glass primers using
the original/provided dimensions and locations. The bead should be a minimum of 14 mm (0.6 in)
high and 8 mm (0.3 in) wide at the base, in the shape of a blunt triangle.
NOTICE:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B
> Jun > 07 > Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 15468
Use of an alternative method of urethane application "bead applied to body", may be used as
required/needed.
Notice:
At no time should the applied urethane exceed 5 minutes prior to glass installation.
2. Install the glass to the vehicle within 5 minutes of the urethane application.
3. If the 5 minute limit is exceeded, scrape/remove the urethane and reapply a new bead.
4. Upon installation, check the left / right positioning (centering) and lightly press the glass into
position.
5. Position the glass to ensure that the rear edge of the upper reveal molding does not gap to the
roof surface, by shifting the windshield upward.
6. Apply masking tape to hold the glass in place during the urethane cure. Use a tape that will not
leave adhesive residue on the vehicle upon removal.
7. Clean any excess urethane adhesive on the show surfaces by wiping immediately with a paint
shop quality rag dampened with the glass bonding adhesive manufacturer's recommended
cleaning solvent.
8. Remove the masking tape after two hours.
Service Procedure
1. Remove the windshield, liftgate window, and quarter windows from the vehicle. Refer to
Windshield Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI
for window removal instructions.
2. Replace the windshield, liftgate window, and quarter windows. Refer to Windshield
Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI for window
installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B
> Jun > 07 > Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 15469
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B
> Jun > 07 > Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 15470
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Liftgate Window Glass >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: >
NHTSA07V242000 > Jun > 07 > Recall 07V242000: Windshield/Liftgate/Quarter Glass
Liftgate Window Glass: All Technical Service Bulletins Recall 07V242000:
Windshield/Liftgate/Quarter Glass
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V242000 MFR'S
REPORT DATE: June 13, 2007
COMPONENT: Visibility: Windshield
POTENTIAL NUMBER OF UNITS AFFECTED: 6213
SUMMARY: Certain vehicles fail to conform to the requirements of Federal Motor Vehicle Safety
Standard No. 212, "Windshield Mounting." An incorrect primer may have been used when installing
the windshield. The same primer may have also been applied to the liftgate glass and the side
stationary glass.
CONSEQUENCE: In the event of a crash, the windshield may not be retained to the extent
required by the standard, increasing the risk of personal injuries to the vehicle occupants.
REMEDY: Dealers will replace the windshield, the liftgate glass, and the side stationary glass. The
recall began on June 14, 2007. Owners may contact Chevrolet at 1-800-630-2438 or Pontiac at
1-800-620-7668.
NOTES: GM recall No. 07154. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Hinge >
Component Information > Service and Repair
Trunk / Liftgate Hinge: Service and Repair
Liftgate Hinge Replacement
Removal Procedure
Caution: When a lift gate hold open device is being removed or installed, provide alternate support
to avoid the possibility of damage to the vehicle or personal injury.
1. Open the liftgate and support. 2. Remove the liftgate trim panel. 3. Mark the location of the
liftgate hinges with a grease pencil. 4. Remove the liftgate struts. 5. Remove the hinge to liftgate
bolts. 6. Remove the hinge to body nuts. 7. Remove the hinges one at a time.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Hinge >
Component Information > Service and Repair > Page 15478
Important: New hinge to body nuts must be used to ensure a proper seal.
1. Align the hinge to body alignments marks made in the removal process and install the nuts. 2.
Align the hinge to liftgate alignment marks made in the removal process and install the bolts. 3.
Install the liftgate struts. 4. Lower the liftgate slowly and inspect the alignment. Align as needed.
Notice: Refer to Fastener Notice.
5. Tighten the nuts to the liftgate hinges.
Tighten the hinge to body nuts to 25 N.m (18 lb ft).
6. Tighten the hinge to liftgate bolts.
Tighten the hinge to liftgate bolts to 25 N.m (18 lb ft).
7. Install the liftgate trim panel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Handle >
Component Information > Service and Repair
Trunk / Liftgate Handle: Service and Repair
LIFTGATE OUTSIDE HANDLE REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Latch >
Component Information > Technical Service Bulletins > Customer Interest for Trunk / Liftgate Latch: > 07-08-64-002 > Jan >
07 > Body - Liftgate Creak Noise On Rough Roads
Trunk / Liftgate Latch: Customer Interest Body - Liftgate Creak Noise On Rough Roads
Bulletin No.: 07-08-64-002
Date: January 23, 2007
TECHNICAL
Subject: Liftgate Creak Noise (Apply Synthetic Lubricant)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the rear liftgate has a creak noise when driving over rough
roads.
Correction
Apply a thin coat of GM(R) Synthetic Lubricant with Teflon(R) to the latch portion of the lock
assembly. Refer to the location shown in the illustration above.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Latch >
Component Information > Technical Service Bulletins > Customer Interest for Trunk / Liftgate Latch: > 07-08-64-002 > Jan >
07 > Body - Liftgate Creak Noise On Rough Roads > Page 15490
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Latch >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Latch: >
07-08-64-002 > Jan > 07 > Body - Liftgate Creak Noise On Rough Roads
Trunk / Liftgate Latch: All Technical Service Bulletins Body - Liftgate Creak Noise On Rough Roads
Bulletin No.: 07-08-64-002
Date: January 23, 2007
TECHNICAL
Subject: Liftgate Creak Noise (Apply Synthetic Lubricant)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the rear liftgate has a creak noise when driving over rough
roads.
Correction
Apply a thin coat of GM(R) Synthetic Lubricant with Teflon(R) to the latch portion of the lock
assembly. Refer to the location shown in the illustration above.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Latch >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Latch: >
07-08-64-002 > Jan > 07 > Body - Liftgate Creak Noise On Rough Roads > Page 15496
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Latch >
Component Information > Technical Service Bulletins > Page 15497
Trunk / Liftgate Latch: Service and Repair
Liftgate Latch Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > Customer Interest: > 08-08-66-002A > Jan > 10 > Body Liftgate Hard To Open In Cold Weather
Trunk / Liftgate Shock / Support: Customer Interest Body - Liftgate Hard To Open In Cold Weather
TECHNICAL
Bulletin No.: 08-08-66-002A
Date: January 07, 2010
Subject: Liftgate Hard to Open in Cold Weather (Replace Both Liftgate Struts)
Models:
2005-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Supercede: This bulletin is being revised to update the Warranty Information. Please discard
Corporate Bulletin Number 08-08-66-002 (Section 08 - Body and Accessories).
Condition
Some customers may comment that the liftgate is hard to open in cold weather (below 0°C (32°F)).
Cause
The valve in the strut may be the cause.
Correction
Replace BOTH liftgate struts. The new strut has a temperature compensating valve that will
improve cold weather performance. Refer to Liftgate Strut Replacement in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > Customer Interest: > 08-08-66-002A > Jan > 10 > Body Liftgate Is Hard to Open in Cold Weather
Trunk / Liftgate Shock / Support: Customer Interest Body - Liftgate Is Hard to Open in Cold
Weather
TECHNICAL
Bulletin No.: 08-08-66-002A
Date: January 07, 2010
Subject: Liftgate Hard to Open in Cold Weather (Replace Both Liftgate Struts)
Models:
2005-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Supercede: This bulletin is being revised to update the Warranty Information. Please discard
Corporate Bulletin Number 08-08-66-002 (Section 08 - Body and Accessories).
Condition
Some customers may comment that the liftgate is hard to open in cold weather (below 0°C (32°F)).
Cause
The valve in the strut may be the cause.
Correction
Replace BOTH liftgate struts. The new strut has a temperature compensating valve that will
improve cold weather performance. Refer to Liftgate Strut Replacement in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 08-08-66-002A > Jan >
10 > Body - Liftgate Hard To Open In Cold Weather
Trunk / Liftgate Shock / Support: All Technical Service Bulletins Body - Liftgate Hard To Open In
Cold Weather
TECHNICAL
Bulletin No.: 08-08-66-002A
Date: January 07, 2010
Subject: Liftgate Hard to Open in Cold Weather (Replace Both Liftgate Struts)
Models:
2005-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Supercede: This bulletin is being revised to update the Warranty Information. Please discard
Corporate Bulletin Number 08-08-66-002 (Section 08 - Body and Accessories).
Condition
Some customers may comment that the liftgate is hard to open in cold weather (below 0°C (32°F)).
Cause
The valve in the strut may be the cause.
Correction
Replace BOTH liftgate struts. The new strut has a temperature compensating valve that will
improve cold weather performance. Refer to Liftgate Strut Replacement in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > All Technical Service Bulletins: > 08-08-66-002A > Jan >
10 > Body - Liftgate Is Hard to Open in Cold Weather
Trunk / Liftgate Shock / Support: All Technical Service Bulletins Body - Liftgate Is Hard to Open in
Cold Weather
TECHNICAL
Bulletin No.: 08-08-66-002A
Date: January 07, 2010
Subject: Liftgate Hard to Open in Cold Weather (Replace Both Liftgate Struts)
Models:
2005-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Supercede: This bulletin is being revised to update the Warranty Information. Please discard
Corporate Bulletin Number 08-08-66-002 (Section 08 - Body and Accessories).
Condition
Some customers may comment that the liftgate is hard to open in cold weather (below 0°C (32°F)).
Cause
The valve in the strut may be the cause.
Correction
Replace BOTH liftgate struts. The new strut has a temperature compensating valve that will
improve cold weather performance. Refer to Liftgate Strut Replacement in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > All Other Service Bulletins for Trunk / Liftgate Shock /
Support: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules
Relay Module: All Technical Service Bulletins Electrical - MIL ON/DTC's Set By Various Control
Modules
TECHNICAL
Bulletin No.: 09-06-03-004D
Date: December 08, 2010
Subject: Intermittent No Crank/No Start, No Module Communication, MIL, Warning Lights, Vehicle
Messages or DTCs Set by Various Control Modules - Diagnosing and Repairing Fretting Corrosion
(Disconnect Affected Connector and Apply Dielectric Lubricant)
Models:
2011 and Prior GM Passenger Cars and Trucks
Attention:
This repair can be applied to ANY electrical connection including, but not limited to: lighting, body
electrical, in-line connections, powertrain control sensors, etc. DO NOT over apply lubricant to the
point where it prevents the full engagement of sealed connectors. A light coating on the terminal
surfaces is sufficient to correct the condition.
Supercede: This bulletin is being revised to update the Attention statement and add the 2011
model year. Please discard Corporate Bulletin Number 09-06-03-004C (Section 06 Engine/Propulsion System).
Condition
Some customers may comment on any of the following conditions:
- An intermittent no crank/no start
- Intermittent malfunction indicator lamp (MIL) illumination
- Intermittent service lamp illumination
- Intermittent service message(s) being displayed
The technician may determine that he is unable to duplicate the intermittent condition.
Cause
This condition may be caused by a buildup of nonconductive insulating oxidized debris known as
fretting corrosion, occurring between two electrical contact surfaces of the connection or connector.
This may be caused by any of the following conditions:
- Vibration
- Thermal cycling
- Poor connection/terminal retention
- Micro motion
- A connector, component or wiring harness not properly secured resulting in movement
On low current signal circuits this condition may cause high resistance, resulting in intermittent
connections.
On high current power circuits this condition may cause permanent increases in the resistance and
may cause a device to become inoperative.
Representative List of Control Modules and Components
The following is only a representative list of control modules and components that may be affected
by this connection or connector condition and DOES NOT include every possible module or
component for every vehicle.
- Blower Control Module
- Body Control Module (BCM)
- Communication Interface Module (CIM)
- Cooling Fan Control Module
- Electronic Brake Control Module (EBCM)
- Electronic Brake and Traction Control Module (EBTCM)
- Electronic Suspension Control (ESC) Module
- Engine Control Module (ECM)
- Heating, Ventilation and Air Conditioning (HVAC) Control Module
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > All Other Service Bulletins for Trunk / Liftgate Shock /
Support: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15524
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > All Other Service Bulletins for Trunk / Liftgate Shock /
Support: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15525
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > All Other Service Bulletins for Trunk / Liftgate Shock /
Support: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15526
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > All Other Service Bulletins for Trunk / Liftgate Shock /
Support: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15532
- HVAC Actuator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Any AIR BAG module
- Seatbelt Lap Anchor Pretensioner
- Seatbelt Retractor Pretensioner
- An SIR system connection or connector condition resulting in the following DTCs being set:
B0015, B0016, B0019, B0020, B0022, or B0023
- Powertrain Control Module (PCM)
- Remote Control Door Lock Receiver (RCDLR)
- Transmission Control Module (TCM)
Correction
Important DO NOT replace the control module, wiring or component for the following conditions:
- The condition is intermittent and cannot be duplicated.
- The condition is present and by disconnecting and reconnecting the connector the condition can
no longer be duplicated.
Use the following procedure to correct the conditions listed above.
1. Install a scan tool and perform the Diagnostic System Check - Vehicle. Retrieve and record any
existing history or current DTCs from all of the
control modules (refer to SI).
‹› If any DTC(s) are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to identify the
connector(s) of the control module/component
which may be causing the condition (refer to SI).
‹› If DTCs are not set, refer to Symptoms - Vehicle to identify the connector(s) of the control
module/component which may be causing the
condition (refer to SI).
2. When identified, use the appropriate DTC Diagnostics, Symptoms, Schematics, Component
Connector End Views and Component Locator
documents to locate and disconnect the affected harness connector(s) which are causing the
condition.
Note Fretting corrosion looks like little dark smudges on electrical terminals and appear where the
actual electrical contact is being made. In less severe cases it may be unable to be seen or
identified without the use of a magnifying glass.
Important DO NOT apply an excessive amount of dielectric lubricant to the connectors as shown,
as hydrolock may result when attempting to mate the connectors. Use ONLY a clean nylon brush
that is dedicated to the repair of the conditions in this bulletin.
3. With a one-inch nylon bristle brush, apply dielectric lubricant to both the module/component side
and the harness side of the affected connector(s).
4. Reconnect the affected connector(s) and wipe away any excess lubricant that may be present.
5. Attempt to duplicate the condition by using the following information:
- DTC Diagnostic Procedure
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Diagnostic Aids
- Circuit/System Verification
‹› If the condition cannot be duplicated, the repair is complete. ‹› If the condition can be duplicated,
then follow the appropriate DTC, Symptom or Circuit/System Testing procedure (refer to SI).
Repair Order Documentation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > All Other Service Bulletins for Trunk / Liftgate Shock /
Support: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15533
Important The following information MUST be documented on the repair order. Failure to do so
may result in a chargeback.
- Customer vehicle condition.
- Was a Service Lamp or Service Message illuminated? If yes, specify which Service Lamp or
Service Message.
- Was a DTC(s) set? If yes, specify which DTC(s) were set.
- After following the procedure contained within this bulletin, could the condition be duplicated?
‹› If the condition was not duplicated, then document the affected module/component connector
name and number on the repair order.
- If the condition was duplicated after the procedure contained within this bulletin was followed, and
additional diagnosis led to the replacement of a module or component, the SI Document ID
Number MUST be written on the repair order.
Parts Information
Alternate Distributor For All of North America
Note
NyoGel(R) 760G Lubricant* is equivalent to GMSPO P/N 12377900, and P/N 10953529 (Canada),
specified for use to correct the condition in this bulletin.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Warranty Information (excluding Saab Models)
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to:
Warranty Information (Saab Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > All Other Service Bulletins for Trunk / Liftgate Shock /
Support: > 09-06-03-004D > Dec > 10 > Electrical - MIL ON/DTC's Set By Various Control Modules > Page 15534
For vehicles repaired under warranty, use the appropriate/closest labor operation depending upon
the module/component connection that the dielectric lubricant was applied to refer to the table
above.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > Page 15535
Trunk / Liftgate Shock / Support: Service and Repair
Liftgate Strut Replacement
Removal Procedure
Caution: When a lift gate hold open device is being removed or installed, provide alternate support
to avoid the possibility of damage to the vehicle or personal injury.
1. Open and support the liftgate.
Important: Spring clips should not be removed from the struts.
2. Lift up and partially remove the spring clips on the strut using a small flat-bladed tool.
3. Remove the upper end of the strut from the ball joint.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > Page 15536
4. Remove the lower end of the strut from the ball joint. 5. Remove the strut from the liftgate.
Installation Procedure
1. Position the strut to the liftgate.
2. Install the upper end of the strut to the ball joint. Press in to place until fully seated.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Shock /
Support > Component Information > Technical Service Bulletins > Page 15537
3. Install the lower end of the strut to the ball joint. Press in to place until fully seated. 4. Remove
the support from the liftgate. 5. Close the liftgate.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Striker >
Component Information > Service and Repair
Trunk / Liftgate Striker: Service and Repair
LIFTGATE LOCK STRIKER REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide
Trunk / Liftgate Weatherstrip: Customer Interest Body - General Water Leak Diagnostic Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 2
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 15549
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 15550
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 15551
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 15552
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 15553
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide
Trunk / Liftgate Weatherstrip: All Technical Service Bulletins Body - General Water Leak Diagnostic
Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 2
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 15559
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 15560
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 15561
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 15562
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: >
08-08-57-001A > Oct > 08 > Body - General Water Leak Diagnostic Guide > Page 15563
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Doors, Hood and Trunk > Trunk / Liftgate > Trunk / Liftgate Weatherstrip
> Component Information > Technical Service Bulletins > Page 15564
Trunk / Liftgate Weatherstrip: Service and Repair
Liftgate Wedge Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Exterior Moulding / Trim > Body Emblem > Component Information >
Technical Service Bulletins > 06-08-111-004B - BULLETIN CANCELLATION NOTIFICATION
Body Emblem: Technical Service Bulletins 06-08-111-004B - BULLETIN CANCELLATION
NOTIFICATION
TECHNICAL
Bulletin No.: 06-08-111-004B
Date: September 25, 2009
Subject: Information on Discoloration, Blistering, Peeling or Erosion of Various Exterior Emblems
Including Chevy Bowtie (Bulletin Cancelled)
Models:
2009 and Prior GM Passenger Cars and Trucks (including Saturn) 2003-2009 HUMMER H2
2006-2009 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being cancelled. Please discard Corporate Bulletin Number
06-08-111-004A (Section 08 - Body & Accessories).
This bulletin is being cancelled. The information is no longer applicable.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Exterior Moulding / Trim > Body Emblem > Component Information >
Service and Repair > Door Emblem and Nameplate Replacement (GM)
Body Emblem: Service and Repair Door Emblem and Nameplate Replacement (GM)
Door Emblem and Nameplate Replacement (GM)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Exterior Moulding / Trim > Body Emblem > Component Information >
Service and Repair > Door Emblem and Nameplate Replacement (GM) > Page 15572
Body Emblem: Service and Repair Liftgate Emblem/Nameplate Replacement (Equinox)
Liftgate Emblem/Nameplate Replacement (Equinox)
Removal Procedure
1. When replacing an emblem/nameplate do the following:
1. Use tape to protect the mounting surface during removal. 2. Use tape for alignment marks for
installation of the emblem/nameplate.
2. To remove an emblem/nameplate, heat the emblem/nameplate using a heat gun. 3. Apply the
heat using a circular motion for about 30 seconds holding the heat gun approximately 152 mm (6
in) from the surface.
Notice: Refer to Exterior Trim Emblem Removal Notice.
4. Use a plastic, flat-bladed tool to remove the emblem/nameplate from the panel surface. 5. When
replacing, remove all adhesive as follows:
* For body panels use a 3M(TM) Scotch Brite molding adhesive remover disk 3M(TM) P/N 07501
or equivalent.
* For plastic panels use a lint free cloth and Varnish Makers and Painters (VMP) naphtha or a
50/50 mixture by volume of isopropyl alcohol and water to remove the adhesive.
Installation Procedure
Important: Apply the emblem/nameplate in an environment that is free from dust or other dirt that
could come into contact with the sticky backing. Foreign material may cause improper adhesion.
1. Clean the area where the emblem/nameplate will be installed.
Use a lint free cloth and Varnish Makers and Painters (VMP) naphtha or a 50/50 mixture by volume
of isopropyl alcohol and water to clean the area.
2. Dry the area thoroughly. 3. If the location of the emblem/nameplate has not been marked, apply
tape and mark the location as shown below.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Exterior Moulding / Trim > Body Emblem > Component Information >
Service and Repair > Door Emblem and Nameplate Replacement (GM) > Page 15573
4. For the EQUINOX emblem/nameplate install to the following dimensions:
Important: All dimensions are arc length measurements.
* Dimension (a) is 11 mm (0.043 in) from the side of the emblem/nameplate to the left edge of the
lift gate.
* Dimension (b) is 160 mm (6.30 in) from the center of the emblem/nameplate to the bottom of the
lift gate.
5. For the CHEVROLET emblem/nameplate install to the following dimensions:
Important: All dimensions are arc length measurements.
* Dimension (a) is 31 mm (1.22 in) from the side of the emblem/nameplate to the right edge of the
lift gate.
* Dimension (b) is 160 mm (6.30 in) from the center of the emblem/nameplate to the bottom of the
lift gate.
6. Heat the mounting surface to approximately 27-41°C (80-105°F) using the heat gun, if
necessary. 7. Ensure that the temperature of the emblem/nameplate is approximately 29-32°C
(85-90°F).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Exterior Moulding / Trim > Body Emblem > Component Information >
Service and Repair > Door Emblem and Nameplate Replacement (GM) > Page 15574
Important: Do not touch the adhesive backing on the emblem/nameplate.
8. Remove the protective liner from the back of the emblem/nameplate. 9. Position the
emblem/nameplate to the location marks and press the emblem/nameplate to the mounting
surface.
10. Apply equal pressure along the emblem/nameplate to uniformly bond the item to the mounting
surface. 11. Remove the protective tape from the mounting surface.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Exterior Moulding / Trim > License Plate Bracket > Component
Information > Service and Repair
License Plate Bracket: Service and Repair
Rear License Plate Pocket Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Exterior Moulding / Trim > Windshield Moulding / Trim > Component
Information > Service and Repair
Windshield Moulding / Trim: Service and Repair
Windshield Frame Applique Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Fender > Front Fender > Front Fender Liner > System Information >
Service and Repair
Front Fender Liner: Service and Repair
Front Wheelhouse Liner Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Fender > Rear Fender > Rear Fender Liner > System Information >
Service and Repair
Rear Fender Liner: Service and Repair
Rear Wheelhouse Liner Panel Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Firewall > Component Information > Service and Repair
Firewall: Service and Repair
Plenum Upper Panel Replacement
Removal Procedure
Caution: Refer to Approved Equipment for Collision Repair Caution.
1. Disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling.
2. Disconnect the negative battery cable. 3. Remove all related panels and components. 4. Repair
as much of the damage as possible to factory specifications. 5. Note the location and remove the
sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion
Treatment and
Repair.
Important: Do not damage any inner panels or reinforcements.
6. Locate and drill out all factory welds. Note the number and location of the welds for installation of
the plenum top panel. 7. Remove the damaged plenum top panel.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Firewall > Component Information > Service and Repair > Page 15593
Important: If the location of the original plug weld holes can not be determined, space the plug weld
holes every 40 mm (1 1/2 in) apart.
Some panels may have structural weld-thru adhesive. It is necessary to replace the weld-thru
adhesive with an additional spot weld between each factory spot weld.
1. Drill 8-mm (5/16-in) plug weld holes in the service part as necessary in the locations noted from
the original panel. 2. Prepare all mating surfaces as necessary. 3. Apply GM-approved Weld-Thru
Coating or equivalent to all mating surfaces. Refer to Anti-Corrosion Treatment and Repair. 4.
Position the plenum top panel to the vehicle using 3-dimensional measuring equipment. Clamp the
plenum top panel into place. 5. Plug weld accordingly. 6. Clean and prepare all welded surfaces. 7.
Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to
Anti-Corrosion Treatment and Repair. 8. Paint the repair area. Refer to Basecoat/Clearcoat Paint
Systems. 9. Install all related panels and components.
10. Connect the negative battery cable. 11. Enable the SIR system. Refer to SIR Disabling and
Enabling.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Frame > Subframe > Front Subframe > System Information > Service
and Repair
Front Subframe: Service and Repair
Frame Replacement (LNJ)
Tools Required
* J 43828 Ball Joint Remover
* SA9140E Torque Angle Gage
Removal Procedure
1. Secure the radiator to the upper radiator support. 2. Raise and support the vehicle. Refer to
Vehicle Lifting. 3. Remove the front wheels. 4. Remove the side splash shield-to-frame fasteners.
5. Remove the front air dam-to-frame fasteners.
6. Remove the rear transaxle mount-to-frame bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Frame > Subframe > Front Subframe > System Information > Service
and Repair > Page 15599
7. Remove the front transaxle mount through bolt.
8. Remove the steering gear-to-frame bolts. 9. Using mechanics wire, secure the steering gear to
the exhaust.
10. Remove the stabilizer shaft clamp-to-frame bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Frame > Subframe > Front Subframe > System Information > Service
and Repair > Page 15600
11. Remove the lower ball joint cotter pins. Discard the cotter pins.
12. Loosen the lower ball joint castle nut until the nut is level with the top of the ball stud.
Notice: Do not free the ball stud by using a pickle fork or a wedge-type tool. Damage to the seal or
bushing may result.
13. Using the J 43828, separate the lower control arm from the steering knuckle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Frame > Subframe > Front Subframe > System Information > Service
and Repair > Page 15601
14. Remove the frame-to-body bolts. Discard the bolts. 15. Carefully lower the frame from the
vehicle. 16. Remove the lower control arms.
Installation Procedure
1. Install the lower control arms. 2. Raise the frame to the body.
Important: Do not tighten the fasteners at this time.
3. Loosely install new frame-to-body bolts.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Frame > Subframe > Front Subframe > System Information > Service
and Repair > Page 15602
4. Connect the ball joint stud to the steering knuckle.
Notice: Refer to Fastener Notice.
5. Using the SA9140E, install the ball stud castle nut.
Tighten the nut to 10 N.m (89 lb in) + 180 degrees.
Important: *
Do not loosen the castle nut in order to align the cotter pin slots.
* Ensure the cutter pin ends do not contact the wheel speed sensor harness.
Continue to tighten the castle nut to align the slots with the opening in the ball stud and install the
ball stud cotter pin.
6. Remove the mechanics wire and install the steering gear to the frame.
Tighten the bolts to 110 N.m (81 lb ft).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Frame > Subframe > Front Subframe > System Information > Service
and Repair > Page 15603
7. Install the front transaxle mount through bolt.
Tighten the bolt to 110 N.m (81 lb ft).
8. Install the rear transaxle mount-to-frame bolts.
Tighten the bolts to 50 N.m (37 lb ft).
9. Install the stabilizer shaft clamp.
Tighten the bolts to 50 N.m (37 lb ft).
10. Tighten the frame-to-body bolts.
Tighten the bolts to 155 N.m (114 lb ft).
11. Install the front air dam fasteners. 12. Install the side splash shield-to-frame fasteners. 13.
Install the front wheels. 14. Lower the vehicle. 15. Unsecure the radiator from the upper radiator
support. 16. Align the front suspension. Refer to Front Toe Adjustment.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Grille > Component Information > Service and Repair
Grille: Service and Repair
Fascia Grille Replacement
Removal Procedure
1. Remove the front fascia assembly (3). 2. Remove the front fascia support. 3. Remove the
radiator grille strap (2) from the back of the grille by depressing the grille strap fingers and pushing
through the front of the grille.
4. Remove the screw from the bottom center of the grille. 5. Remove the grille from the front fascia
by releasing the retainers around the perimeter of the grille.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Grille > Component Information > Service and Repair > Page 15607
1. Position the grille to the front fascia. 2. Install the grille to the front fascia by pushing in to secure
the retainers around the perimeter of the grille.
Notice: Refer to Fastener Notice.
3. Install the screw to the bottom center of the grille.
Tighten the screw to 2 N.m (18 lb in).
4. Install the radiator grille strap into the front fascia and grille by pushing the fingers on the strap
into the grille and fascia until fully secured. 5. Install the front fascia support. 6. Install the front
fascia assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Technical
Service Bulletins > Interior - Cleaning Interior Surfaces of Vehicle
Carpet: Technical Service Bulletins Interior - Cleaning Interior Surfaces of Vehicle
INFORMATION
Bulletin No.: 06-00-89-029F
Date: April 27, 2010
Subject: Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather,
Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability
Models:
2006-2011 GM Passenger Cars and Trucks including Saturn (EXCLUDES Cadillac DTS Platinum
and Escalade Platinum with RPO R9N - Tehama Leather) 2006-2010 HUMMER H2, H3 2006-2009
Saab 9-7X
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 06-00-89-029E (Section 00 - General Information).
To keep the vehicle interior looking the best, it should be cleaned often. It is important to keep the
upholstery from becoming heavily soiled. The vehicle's interior can experience extreme heat, which
can cause stains to set quickly. Lighter color interiors may require more frequent cleaning. Care
should be taken because newspapers and garments may transfer color to the vehicle's interior.
Many of today's interiors are made with new low gloss materials. Permanent damage may result
from using cleaners on ANY surfaces (interior trim, instrument panel, carpet, leather, vinyl and
fabric) for which they are not intended. Using non-approved products can actually set the stain to
the point that nothing can remove it.
Important
Do not use silicone or wax-based products or those containing organic solvents (such as naptha,
alcohol, etc.) to clean your vehicle's interior because they can alter the appearance by increasing
the gloss in a non-uniform manner. The increase in gloss may cause annoying reflections in the
windshield and even make it difficult to see through the windshield under certain conditions.
- Never use a STIFF brush or a brush that has been previously used with a harsh chemical. This
can cause damage to the vehicle's interior surfaces.
- Use only mild, Neutral-pH cleaners. Avoid laundry detergents or dishwashing soaps with
degreasers. Using too much soap will leave residue that leaves streaks and attracts dirt.
Because it is critical to use only mild, neutral-pH cleaners, General Motors has approved the use of
the cleaners and conditioners listed in this bulletin for the cleaning of interiors. These products are
in the neutral-pH range and will maintain the best vehicle interior appearance. These products are
water-based, biodegradable, and do not contain bleach, solvents or harsh chemicals.
Interior trim pieces on new vehicles, as well as service components, arrive with a protective film.
When removing the protective film, adhesive residue may be left on the trim panels/components.
The cleaner (for leather, vinyl, plastic and interior paint) is an effective cleaner in removing
adhesive residue without causing damage to the component.
Important
- If soapy, alkaline cleaning solutions are used on fabrics, and not thoroughly rinsed out, the
residual left in the fabric will attract dirt. Because the recommended cleaners/conditioners are in the
pH neutral range, they won't leave behind soapy residue.
- On heavily stained or difficult to clean fabric/carpet, it is recommended that the entire surface be
treated and cleaned vs. spot cleaning. Refer to Extractor Machine and Concentrate section of this
bulletin for more information.
Effective cleaning steps for hard and/or plastic surfaces:
1. Using a clean towel, apply/spray cleaner - leather, vinyl, plastic, interior paint, directly onto the
towel. 2. Wipe the surface with the towel/cleaner. 3. If necessary, use a soft bristle brush to work
cleaner into the crevasses of the area being cleaned. 4. Wipe off any excess cleaner from the
surface. 5. Using a clean towel, apply/spray the conditioner (leather, vinyl restorer) directly onto the
towel. 6. Wipe the conditioner onto the previously cleaned area to restore the material to it's
original luster.
Important Today's interiors are developed and intended to have a low-gloss appearance. It is
important to use only products which provide a low-gloss finish in order to maintain the interior's
integrity, customer appeal and satisfaction.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Technical
Service Bulletins > Interior - Cleaning Interior Surfaces of Vehicle > Page 15613
Effective cleaning steps for fabric:
1. Remove any residue by lightly rubbing the surface with a clean towel. 2. Choose the appropriate
stain remover based on the stain type. 3. Spray and lightly brush the area with a clean, soft bristle
brush. 4. Gently blot up the stain. 5. On upholstery/carpet, the use of a fabric protector can help to
reduce or eliminate future staining.
Upholstery and Carpet Stains
When cleaning upholstery and carpet stains ONLY, the following cleaning chart will help you
determine which cleaner/formula works best on a particular stain. The chart lists many of the
common stains. Some complex stains may require the application of both stain removers, one after
the other, to remove both food-based oils and synthetic oils.
A soft bristle brush (P/N 88861425) should be used to safely work the cleaner into the leather grain
or material. This enables the dirt/stain to be completely removed from the material.
Leather Conditioner/Restorer
A Leather Conditioner/Restorer is also available. The restorer is safe for all vinyl and leather. It is a
water-based product and contains essential emollients to restore suppleness, conditions and adds
luster without adding gloss. The restorer will also provide protection against re-staining.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Technical
Service Bulletins > Interior - Cleaning Interior Surfaces of Vehicle > Page 15614
Dye Transfer: Dye transfer will happen any time a natural fiber like cotton, silk, wool, or suede
comes into contact with leather. The lighter the leather color, the more quickly the dye transfer will
appear. Leather should be cleaned on a regular basis so that the dirt and grime do not adversely
affect the top coat of the leather. After cleaning the leather, it is important to treat the surface with
the restorer.
Extractor Machine and Concentrate
For difficult to clean materials or when cleaning a large area, the best results will be achieved when
using an extractor machine and concentrate. General Motors offers the Ruby Extractor (P/N
627-CC-3000AU) through GM Tools and Equipment 1-800-GM-TOOLS, and has recently released
a concentrate for use with the extractor machine.
Whichever extractor machine is used, it should meet the minimum specifications of the Ruby
Extractor:
Ruby Extractor Specifications:
- Pump PSI: 55
- Water Lift: 85"
- Hose Length: 10 ft
Important The Ruby Extractor also comes with a 6 year Outer Body and 3 year Parts warranty.
Extractor: The Ruby Extractor machine was designed for automotive use and works effectively in
the vehicle's interior. The narrow design of the vacuum head allows detail work in tight areas. The
water pressure pump is reduced so the fabric surface is not wet more than is necessary. The dry
time is greatly reduced due to less water on the fabric surface, the vacuum head making better
contact with the surface and the significant water lift capability of the machine.
Concentrate: The concentrated extraction cleaner is engineered with lower pH levels to help
remove alkaline buildup on fabrics. The concentrate should be mixed according to the instructions
listed on the container. The available concentrate helps to break the stain down and then the stain
is easily removed with less water. The concentrate used in the Ruby Extractor is slightly acidic to
remove soap and alkalinity from the fabric surfaces left behind by using improper, soapy solutions.
Dirt, grease and grime are more easily removed when the proper solution is used during the
extraction process.
Parts Information
Products are available in two sizes; 8 oz / 235 ML and 24 oz / 710 ML bottles.
Available Equipment
Equipment is available by contacting 1-800-GMTOOLS.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Technical
Service Bulletins > Interior - Cleaning Interior Surfaces of Vehicle > Page 15615
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Technical
Service Bulletins > Interior - Cleaning Interior Surfaces of Vehicle > Page 15616
Carpet: Technical Service Bulletins Interior - Proper Use of Floor Mats
INFORMATION
Bulletin No.: 10-08-110-001
Date: March 30, 2010
Subject: Information on Proper Use of Floor Mats
Models:
2011 and Prior GM Passenger Cars and Trucks (Including Saturn) 2003-2009 HUMMER H2
2006-2010 HUMMER H3, H3T 2005-2009 Saab 9-7X
GM's carpeted and all-weather (rubber) floor mats are especially designed for use in specific GM
vehicles. Using floor mats that were not designed for the specific vehicle or using them incorrectly
may cause interference with the accelerator or brake pedal. Please review the following safety
guidelines regarding proper driver's side floor mat usage with the customer.
Warning
If a floor mat is the wrong size or is not properly installed, it can interfere with the accelerator pedal
and/or brake pedal. Interference with the pedals can cause unintended acceleration and/or
increased stopping distance which can cause a crash and injury. Make sure the floor mat does not
interfere with the accelerator or brake pedal.
- Do not flip the driver's floor mat over (in an effort to keep the floor mat clean)
- Do not place anything on top of the driver's floor mat (e.g. carpet remnant, towel)
- Do not place another mat on top of the driver's floor mat (e.g. do not place all-weather rubber
mats over carpeted floor mats)
- Only use floor mats that are designed specifically for your vehicle
- When using replacement mats, make certain the mats do not interfere with the accelerator or
brake pedal before driving the vehicle
If your vehicle is equipped with a floor mat retaining pin(s) or clip(s), make certain the mat is
installed correctly and according to the instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Technical
Service Bulletins > Interior - Cleaning Interior Surfaces of Vehicle > Page 15617
After installing floor mats, make certain they cannot move and do not interfere with the accelerator
or brake pedals.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Technical
Service Bulletins > Interior - Cleaning Interior Surfaces of Vehicle > Page 15618
Carpet: Technical Service Bulletins Interior - Elimination Of Unwanted Odors
INFORMATION
Bulletin No.: 00-00-89-027E
Date: September 29, 2008
Subject: Eliminating Unwanted Odors in Vehicles
Models: 2009 and Prior GM Passenger Cars and Trucks (including Saturn) 2009 and Prior
HUMMER H2, H3 Vehicles 2009 and Prior Saab 9-7X
Supercede:
This bulletin is being revised to add model years and refine the instructions. Please discard
Corporate Bulletin Number 00-00-89-027D (Section 00 - General Information).
Vehicle Odor Elimination
General Motors offers a product that may control or eliminate odors in the interior and luggage
compartment areas of GM vehicles. GM Vehicle Care Odor Eliminator is a non-toxic,
biodegradable odor remover. This odorless product has been shown to greatly reduce or remove
objectionable smells of mold and mildew resulting from vehicle water leaks (as well as customer
created odors, i.e. smoke). You may use GM Vehicle Care Odor Eliminator on fabrics, vinyl,
leather, carpet and sound deadening materials. It may also be induced into HVAC modules and
instrument panel ducts (for the control of non-bacterial related odors).
Important:
This product leaves no residual scent and should not be sold as or considered an air freshener.
Product action may result in the permanent elimination of an odor and may be preferable to
customers with allergies who are sensitive to perfumes.
How to Use This Product
GM Vehicle Care Odor Eliminator may be sprayed on in a ready-to-use formula or used in steam
cleaners as an additive with carpet shampoo. This water-based, odorless product is safe for all
vehicle interiors. Do not wet or soak any interior surface that plain water would cause to
deteriorate, as this product will have the same effect. Also avoid letting this product come into
contact with vinegar or any acidic substance. Acid-based products will hamper the effectiveness of,
or render GM Vehicle Care Odor Eliminator inert.
Note:
Complete eight page treatment sheets are enclosed within each case of GM Vehicle Care Odor
Eliminator. These treatment instructions range from simple vehicle odor elimination to full step by
step procedures for odor removal from water leaks. If lost, contact 800-977-4145 to get a
replacement set faxed or e-mailed to your dealership.
Instructions and cautions are printed on the bottle, but additional help is available. If you encounter
a difficult to eliminate or reoccurring odor, you may call 1-800-955-8591 (in Canada,
1-800-977-4145) to obtain additional information and usage suggestions.
Important:
This product may effectively remove odors when directly contacting the odor source. It should be
used in conjunction with diagnostic procedures (in cases such as a water leak) to first eliminate the
root cause of the odor, and then the residual odor to permanently correct the vehicle condition.
Vehicle Waterleak Odor Elimination
STEP ONE:
Confirm that all water leaks have been repaired. Determine what areas of the vehicle were water
soaked or wet. Components with visible mold/mildew staining should be replaced. Isolate the odor
source inside the vehicle. Often an odor can be isolated to an area or component of the vehicle
interior by careful evaluation. Odor evaluation may need to be performed by multiple persons.
Another method of isolating an odor source is to remove and segregate interior trim and
components. Plastic sheeting or drop cloths can be used to confine seats, headliners, etc. to assist
in evaluation and diagnoses. If appropriate the vehicle and interior trim should be evaluated
separately to determine if the odor stays with the vehicle or the interior components. Odors that
stay with the vehicle may be isolated to insulating and sound deadening materials (i.e. water leak
at the windshield or standing water in the front foot well area caused mold/mildew to form on the
bulkhead or kick panel sound deadening pads. If the interior is removed the floor pan and
primed/painted surfaces should be treated with bleach/soap solution, rinsed with clean water and
dried. Interior surfaces should then be treated with GM Vehicle Care Odor Eliminator product
before reinstalling carpet or reassembling.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Technical
Service Bulletins > Interior - Cleaning Interior Surfaces of Vehicle > Page 15619
The GM Vehicle Care Odor Eliminator product is an effective odor elimination product when used
properly. It must come into direct contact with the odor source. It should be used in conjunction with
diagnostic procedures to first eliminate the root cause of the odor. Some procedures for use after
odor root cause correction are:
STEP TWO:
^ Use the trigger spray head.
^ Put a drop of dish soap the size of a quarter in the bottom of a bottle.
^ Add 8 oz. of GM Vehicle Care Odor Eliminator (1 cup) to the dish soap and top off the bottle with
tap water.
^ This formula should be used on hard surfaces (dash, interior plastic molding, and floor pan)
STEP THREE:
The third step to neutralizing the vehicle is a light to medium treatment of all carpeting and
upholstered seats with the GM Vehicle Care Odor Eliminator formula and a wide fan spray setting
(at full strength) (i.e.: carpeting on the driver's side requires 4-5 triggers pulls for coverage). The
headliner and trunk should be sprayed next. Lightly brushing the formula into the carpeting and
upholstery is a recommended step for deep odor problems. The dash and all hard surfaces should
be sprayed with dish soap/water mixture. Let stand for 1-2 minutes then wipe off the surface.
STEP FOUR: (vehicle ventilation system treatment)
The ventilation system is generally the last step in the treatment of the vehicle.
a. Spray the GM Vehicle Care Odor Eliminator formula into all dash vents. (1-2 trigger pulls per
vent).
b. Start the vehicle and turn the vehicle fan on high cool (not A/C setting).
c. Spray the formula (10 trigger pulls) into the outside fresh air intake vent (cowl at base of
windshield)
d. Enter the vehicle after 1 minute and wipe off the excess formula spurting out of the dash vents.
e. Smell the air coming from the dash vents. If odors are still present, spray another 5 triggers into
the cowl, wait another minute and smell the results. Once you have obtained a fresh, clean smell
coming from the vents, turn the system to the A/C re-circulation setting. Roll up the windows, spray
3-5 pumps into the right lower IP area and let the vehicle run with the fan set on high for 5-7
minutes.
Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited
is resolved without completing every step, the remaining steps do not need to be performed. If
these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance.
Additional Suggestions to Increase Customer Satisfaction
Here are some additional ideas to benefit your dealership and to generate greater customer
enthusiasm for this product.
^ Keep this product on-hand for both the Service Department and the Used Car lot. Add value to
your used car trades; treat loaner and demo cars during service and at final sale to eliminate
smoke, pet, and other common odors offensive to customers. Make deodorizing a vehicle part of
your normal vehicle detailing service.
^ Consider including GM Vehicle Care Odor Eliminator as a give-away item with new vehicle
purchases. Many dealers give away as "gifts" various cleaning supplies at time of delivery. GM
Odor Eliminator is one of a few products GM offers that has as many uses in the home as in the
vehicle. Customers may find this product can be used for a host of recreational activities
associated with their new vehicle, such as deodorizing a boat they tow, or a camper.
^ GM Odor Eliminator and many of the GM Vehicle Care products offer you the chance to increase
dealership traffic as these superior quality products cannot be purchased in stores. Many
Dealerships have product displays at the parts counter. Consider additional displays in the
Customer Service Lounge, the Showroom and at the Service Desk or Cashier Window. Many
customers who purchase vehicles and receive regular maintenance at your dealership may never
visit the parts counter, and subsequently are not exposed to the variety and value that these
products offer.
Parts Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Technical
Service Bulletins > Interior - Cleaning Interior Surfaces of Vehicle > Page 15620
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Service
and Repair > Eliminating Unwanted Odors in Vehicles
Carpet: Service and Repair Eliminating Unwanted Odors in Vehicles
Eliminating Unwanted Odors in Vehicles
GM Vehicle Care Odor Eliminator, GM P/N 12378554 (Canadian and Saturn P/N 88901678), may
control or eliminate odors in the interior and luggage compartment areas of GM vehicles. This
non-toxic, biodegradable, odorless product has been shown to greatly reduce or remove the
following types of odor:
* Objectionable smells of mold and mildew resulting from vehicle water leaks
* Customer created odors, such as smoke
You may safely use GM Vehicle Care Odor Eliminator on fabrics, vinyl, leather, carpet, and sound
deadening materials. You may also induce this product into HVAC modules and instrument panel
ducts for the control of non-bacterial related odors.
Important: This product leaves no residual scent and should not be used as an air freshener.
This product may result in the permanent elimination of an odor and may be preferable to
customers whose allergies make them sensitive to perfumes. This product may effectively remove
odors when directly contacting the odor source. In cases such as water leaks, use this product with
diagnostic procedures to first eliminate the primary cause of the odor. Then use further applications
on the residual odor to permanently correct the vehicle condition.
How to Use this Product
* Spray GM Vehicle Care Odor Eliminator directly or as an additive with carpet shampoo in steam
cleaners.
* Do not use on any interior surface that plain water would deteriorate, because this product will
have the same effect. Also avoid letting this product come into contact with vinegar or any acidic
substance. Acid-based products will hamper the effectiveness of GM Vehicle Care Odor Eliminator.
* Complete eight page treatment sheets are enclosed within each case of GM Vehicle Care Odor
Eliminator. These treatment instructions range from simple vehicle odor elimination to full step by
step procedures for odor removal from water leaks.
* Instructions and cautions are printed on the bottle, but additional help is available. If you
encounter a persistent or recurring odor, you may call to obtain additional information and usage
suggestions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Service
and Repair > Eliminating Unwanted Odors in Vehicles > Page 15623
Carpet: Service and Repair Floor Carpet Drying
Floor Carpet Drying
If the carpet or the pad or insulator is wet, use the following criteria for drying or for replacing the
components:
* For a 1-piece carpet assembly bonded to a cotton or a fiber padding, replace the entire assembly.
* For a 2-piece carpet assembly with a cotton or a fiber padding, replace the padding only. While
the carpet is out of the vehicle, dry the carpet using the method described below.
* For a 1-piece carpet assembly bonded to a foam padding or attached to a synthetic padding, dry
the carpet using the method described below.
* For a 2-piece carpet assembly with a synthetic padding, dry the assembly using the method
described below.
Drying Method
1. If you observe puddles of liquid on the carpet face, use a wet vacuum to remove the excess
moisture. 2. Blot the face of the carpet with a towel in order to absorb as much moisture as
possible. 3. Point a fan at the affected area and air dry the carpet.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Service
and Repair > Eliminating Unwanted Odors in Vehicles > Page 15624
Carpet: Service and Repair Floor Panel Carpet Replacement
Floor Panel Carpet Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Service
and Repair > Eliminating Unwanted Odors in Vehicles > Page 15625
Carpet: Service and Repair Front Carpet Retainer Replacement
Front Carpet Retainer Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Carpet > Component Information > Service
and Repair > Eliminating Unwanted Odors in Vehicles > Page 15626
Carpet: Service and Repair Rear Carpet Retainer Replacement
Rear Carpet Retainer Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Console > Component Information >
Specifications
Console: Specifications
Fastener Tightening Specifications
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Console > Component Information > Service
and Repair > Console Replacement
Console: Service and Repair Console Replacement
Console Replacement
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and Repair > Console Replacement > Page 15632
Console: Service and Repair Console Storage Bin Replacement
Console Storage Bin Replacement
Removal Procedure
1. Raise the console lid to expose the hinge.
2. Remove the screws that retain the console hinge to the base. Remove the console hinge. 3.
Remove the console storage bin.
Installation Procedure
1. Insert the new storage bin.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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and Repair > Console Replacement > Page 15633
Notice: Refer to Fastener Notice.
2. Fasten the storage bin cover with the hinge screws.
Tighten the screws to 2 N.m (18 lb in).
3. Inspect the lid for alignment and operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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and Repair > Console Replacement > Page 15634
Console: Service and Repair Console Trim Plate Replacement
Console Trim Plate Replacement
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and Repair > Console Replacement > Page 15635
Console: Service and Repair Front Floor Console Armrest Replacement
Front Floor Console Armrest Replacement
Removal Procedure
1. Move the front seats rearward and open the center armrest cover.
2. Remove the screws from the hinge holding the armrest cover to the center console. 3. Remove
the armrest cover.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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and Repair > Console Replacement > Page 15636
1. Align the armrest cover with the hinge positioned correctly.
Notice: Refer to Fastener Notice.
2. Install the screws to the hinge holding the armrest cover to the center console.
Tighten the screws to 2 N.m (18 lb in).
3. Close the armrest cover. Inspect the cover for proper alignment and operation. 4. Return the
front seat to the proper position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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and Repair > Console Replacement > Page 15637
Console: Service and Repair
Console Replacement
Console Replacement
Console Storage Bin Replacement
Console Storage Bin Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Console > Component Information > Service
and Repair > Console Replacement > Page 15638
Removal Procedure
1. Raise the console lid to expose the hinge.
2. Remove the screws that retain the console hinge to the base. Remove the console hinge. 3.
Remove the console storage bin.
Installation Procedure
1. Insert the new storage bin.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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and Repair > Console Replacement > Page 15639
Notice: Refer to Fastener Notice.
2. Fasten the storage bin cover with the hinge screws.
Tighten the screws to 2 N.m (18 lb in).
3. Inspect the lid for alignment and operation.
Console Trim Plate Replacement
Console Trim Plate Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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and Repair > Console Replacement > Page 15640
Front Floor Console Armrest Replacement
Front Floor Console Armrest Replacement
Removal Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Console > Component Information > Service
and Repair > Console Replacement > Page 15641
1. Move the front seats rearward and open the center armrest cover.
2. Remove the screws from the hinge holding the armrest cover to the center console. 3. Remove
the armrest cover.
Installation Procedure
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and Repair > Console Replacement > Page 15642
1. Align the armrest cover with the hinge positioned correctly.
Notice: Refer to Fastener Notice.
2. Install the screws to the hinge holding the armrest cover to the center console.
Tighten the screws to 2 N.m (18 lb in).
3. Close the armrest cover. Inspect the cover for proper alignment and operation. 4. Return the
front seat to the proper position.
Front Floor Console Compartment Door Latch Replacement
Front Floor Console Compartment Door Latch Replacement
Removal Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Console > Component Information > Service
and Repair > Console Replacement > Page 15643
1. Lift the armrest cover to expose the armrest hinge and insert.
2. Remove the screws from the armrest cover.
3. Remove the console latch cover to expose the latch screws.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Console > Component Information > Service
and Repair > Console Replacement > Page 15644
4. Remove the latch screws from the center console armrest cover.
5. Remove the latch from the armrest cover.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Console > Component Information > Service
and Repair > Console Replacement > Page 15645
1. Align the new latch to the armrest cover.
Notice: Refer to Fastener Notice.
2. Install the latch screws to the armrest cover.
Tighten the screws to 2.5 N.m (22 lb in).
3. Install the screws that secure the armrest cover to the center console.
Tighten the screws to 2.5 N.m (22 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Console > Component Information > Service
and Repair > Console Replacement > Page 15646
4. Snap the console insert to the armrest cover. 5. Close the armrest cover. Inspect the cover for
alignment and operation.
Front Floor Console Side Trim Panel Replacement - Left Side
Front Floor Console Side Trim Panel Replacement - Left Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Console > Component Information > Service
and Repair > Console Replacement > Page 15647
Front Floor Console Side Trim Panel Replacement - Right Side
Front Floor Console Side Trim Panel Replacement - Right Side
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Console > Component Information > Service
and Repair > Console Replacement > Page 15648
Roof Console Replacement
Roof Console Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Console > Component Information > Service
and Repair > Console Replacement > Page 15649
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Dashboard / Instrument Panel > Air Bag(s)
Arming and Disarming > System Information > Service and Repair
Air Bag(s) Arming and Disarming: Service and Repair
SIR Disabling and Enabling
SIR component location affects how a vehicle should be serviced. There are parts of the SIR
system installed in various locations around a vehicle. To find the location of the SIR components
refer to SIR Identification Views.
There are several reasons for disabling the SIR system, such as repairs to the SIR system or
servicing a component near or attached to an SIR component. There are several ways to disable
the SIR system depending on what type of service is being performed. The following information
covers the proper procedures for disabling/enabling the SIR system.
SIR Service Precautions
Caution: When performing service on or near the SIR components or the SIR wiring, the SIR
system must be disabled. Failure to observe the correct procedure could cause deployment of the
SIR components. Serious injury can occur. Failure to observe the correct procedure could also
result in unnecessary SIR system repairs.
The inflatable restraint sensing and diagnostic module (SDM) maintains a reserved energy supply.
The reserved energy supply provides deployment power for the air bags if the SDM loses battery
power during a collision. Deployment power is available for as much as 1 minute after
disconnecting the vehicle power. Waiting 1 minute before working on the system after disabling the
SIR system prevents deployment of the air bags from the reserved energy supply.
General Service Instructions
The following are general service instructions which must be followed in order to properly repair the
vehicle and return it to its original integrity:
* Do not expose inflator modules to temperatures above 65°C (150°F).
* Verify the correct replacement part number. Do not substitute a component from a different
vehicle.
* Use only original GM replacement parts available from your authorized GM dealer. Do not use
salvaged parts for repairs to the SIR system.
Discard any of the following components if it has been dropped from a height of 91 cm (3 feet) or
greater:
* Inflatable restraint sensing and diagnostic module (SDM)
* Any Inflatable restraint air bag module
* Inflatable restraint steering wheel module coil
* Any Inflatable restraint sensor
* Inflatable restraint seat belt pretensioners
* Inflatable restraint Passenger Presence System (PPS) module or sensor
Disabling Procedure - Air Bag Fuse
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position.
Important: The SDM may have more than one fused power input. To ensure there is no unwanted
SIR deployment, personal injury, or unnecessary SIR system repairs, remove all fuses supplying
power to the SDM. With all SDM fuses removed and the ignition switch in the ON position, the AIR
BAG warning indicator illuminates. This is normal operation, and does not indicate a SIR system
malfunction.
3. Locate and remove the fuse(s) supplying power to the SDM. 4. Wait 1 minute before working on
the system.
Enabling Procedure - Air Bag Fuse
1. Place the ignition in the OFF position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Dashboard / Instrument Panel > Air Bag(s)
Arming and Disarming > System Information > Service and Repair > Page 15654
2. Install the fuse(s) supplying power to the SDM. 3. Turn the ignition switch to the ON position.
The AIR BAG indicator will flash then turn OFF. 4. Perform the Diagnostic System Check - Vehicle
if the AIR BAG warning indicator does not operate as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Disabling Procedure - Negative Battery Cable
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position. 3. Disconnect the negative battery cable from the battery. 4. Wait 1
minute before working on system.
Enabling Procedure - Negative Battery Cable
1. Place the ignition in the OFF position. 2. Connect the negative battery cable to the battery. 3.
Turn the ignition switch to the ON position. The AIR BAG indicator will flash then turn OFF. 4.
Perform the Diagnostic System Check - Vehicle if the AIR BAG warning indicator does not operate
as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Drink Holders > Component Information >
Service and Repair > Front Floor Console Front Cup Holder Replacement
Drink Holders: Service and Repair Front Floor Console Front Cup Holder Replacement
Front Floor Console Front Cup Holder Replacement
Removal Procedure
1. Open the arm rest on the console. 2. Remove the cupholder cover. 3. Remove the screws from
the cup holder track. 4. Remove the cup holder and the track from the console.
5. Pull to separate the cup holder from the track.
Installation Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Drink Holders > Component Information >
Service and Repair > Front Floor Console Front Cup Holder Replacement > Page 15659
1. Install the cup holder to the track. 2. Position the track in the console assembly.
Notice: Refer to Fastener Notice.
3. Install the console track screws.
Tighten the screw to 2.5 N.m (22 lb in).
4. Snap the cupholder cover in place. 5. Inspect the cupholder for correct operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Drink Holders > Component Information >
Service and Repair > Front Floor Console Front Cup Holder Replacement > Page 15660
Drink Holders: Service and Repair Front Floor Console Rear Cup Holder Replacement
Front Floor Console Rear Cup Holder Replacement
Removal Procedure
1. Pull all the way out on the cup holder. 2. Remove the screws from the cup holder track.
3. Remove the cup holder and the track from the console.
Installation Procedure
Notice: Refer to Fastener Notice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Drink Holders > Component Information >
Service and Repair > Front Floor Console Front Cup Holder Replacement > Page 15661
1. Install the console track screws.
Tighten the screw to 2.5 N.m (22 lb in).
2. Verify the rear cup holder for correct operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Glove Compartment > Component Information
> Service and Repair > Instrument Panel Compartment Door Latch Release Handle Replacement
Glove Compartment: Service and Repair Instrument Panel Compartment Door Latch Release
Handle Replacement
Instrument Panel Compartment Door Latch Release Handle Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Glove Compartment > Component Information
> Service and Repair > Instrument Panel Compartment Door Latch Release Handle Replacement > Page 15666
Glove Compartment: Service and Repair Instrument Panel Compartment Door Latch Replacement
Instrument Panel Compartment Door Latch Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Glove Compartment > Component Information
> Service and Repair > Instrument Panel Compartment Door Latch Release Handle Replacement > Page 15667
Glove Compartment: Service and Repair Instrument Panel Compartment Door Replacement
Instrument Panel Compartment Door Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Glove Compartment > Component Information
> Service and Repair > Instrument Panel Compartment Door Latch Release Handle Replacement > Page 15668
Glove Compartment: Service and Repair Instrument Panel Compartment Replacement
Instrument Panel Compartment Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Recalls for Headliner: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection
Technical Service Bulletin # 07287A Date: 080528
Campaign - Enhanced Head Impact Protection
CUSTOMER SATISFACTION
Bulletin No.: 07287A
Date: May 28, 2008
Subject: 07287A - Increased Head Impact Protection
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Without Head-Curtain Side Impact Air Bags or Without Sunroof
Canadian Vehicles and Certain Export Vehicles
Supercede:
The Parts Information section in this bulletin has been revised to include the part usage for the gray
absorber kit. Please discard all copies of bulletin 07287, issued May 2008.
THIS PROGRAM IS IN EFFECT UNTIL MAY 31, 2009.
Condition
2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without a head-curtain side
impact air bag or without a sunroof not only meet but exceed government standards for head
impact protection. GM has recently made changes that add to that protection. GM is making similar
changes to vehicles built before this change was implemented.
Correction
To enhance head impact protection dealers are to install an energy-absorbing device on the driver
and passenger side headliner.
Vehicles Involved
Involved are certain 2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without
a head-curtain side impact air bag or without a sunroof and built within the VIN breakpoints shown
above.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using the GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles a listing with involved vehicles containing the complete vehicle
identification number customer name and address information has been prepared and will be
provided through GM DealerWorld Recall Information. Dealers will not have a report available if
they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Recalls for Headliner: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection
> Page 15677
Parts Information
Parts required to complete this recall are to be obtained from General Motors Service and Parts
Operations (GMSPO). Please refer to your "involved vehicles listing before ordering parts. Normal
orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation parts
should be ordered on a CSO = Customer Special Order.
Service Procedure
1. Remove the door weather strip.
Notice:
To avoid damaging the headliner and to ensure the headliner tab hole is cut in the correct location,
it is essential to carefully align the template cross hair (1) with the edge of the headliner and the
edge of the A-pillar trim. Use an X-Acto knife or equivalent utility knife to cut the tab hole in the
headliner.
Important:
There is a driver's side and a passenger's side template. The driver's side template is marked "L"
left side, and the passenger's side template is marked "R" right side.
2. Align the template cross hair (1) with the edge of the A-pillar trim and edge of the headliner.
3. Mark the outline for the tab hole using an ink pen.
4. Cut the tab hole using a utility knife.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Recalls for Headliner: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection
> Page 15678
5. Insert the tab of the headliner trim piece into the tab hole.
6. Insert the A-pillar edge of the headliner trim piece (1) under the A-pillar trim (2).
7. Place a piece of Scotch(R) tape (or equivalent transparent tape) along the edge of the headliner
where the U-channel will contact the headliner
8. Push the U-channel edge of the headliner trim piece over the top of the headliner edge.
9. Install the weather strip.
10. Examine the fit of the headliner trim piece to the headliner. Remove or reduce any gap between
the headliner and headliner trim piece by applying pressure to the headliner molding piece if
required.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Recalls for Headliner: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection
> Page 15679
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
Submit a Product Recall Claim with the information shown above.
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers regardless of
mileage, age of vehicle, or ownership, through May 31, 2009.
Customers who have recently purchased vehicles sold from your vehicle inventory and for which
there is no customer information indicated on the dealer listing are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory or is in your
dealership for service through May 31, 2009 you must take the steps necessary to be sure the
recall correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Recalls for Headliner: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection
> Page 15680
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Recalls for Headliner: > 07281A > May > 08 > Recall - Head Impact Noncompliance
Technical Service Bulletin # 07281A Date: 080514
Recall - Head Impact Noncompliance
# 07281A: FMVSS Noncompliance - Head Impact Protection - Add Additional Energy-Absorbing
Device (US and Export) (May 14, 2008)
Subject: 07281A -- Head Impact Protection - Add Additional Energy - Absorbing Device
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Without Head-Curtain Side Impact Air Bags or Without Sunroof U.S. Vehicles and Certain Export
Vehicles
The Parts Information section in this bulletin has been revised to include part usage for the gray
absorber kit. Please discard all copies of bulletin 07281, issued May 2008.
Condition
General Motors has decided that certain 2007 model year Chevrolet Equinox and Pontiac Torrent
vehicles built without a head-curtain side impact air bag or without a sunroof fail to conform to
Federal Motor Vehicle Safety Standard (FMVSS) 201, "Occupant Protection in Interior Impact". In
tests, the Standard's requirement was exceeded at one test point. If a front seat occupant's head
contacts that point in a crash, the occupants injury could be increased.
Correction
Dealers are to install an energy-absorbing device on the driver and passenger side headliner.
Vehicles Involved
Involved are certain 2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without
a head-curtain side impact air bag or without a sunroof and built within the VIN breakpoints above.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through GM DealerWorld Recall Information. Dealers will not have a report available if
they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
Parts required to complete this recall are to be obtained from General Motors Service and Parts
Operations (GMSPO). Please refer to your "involved vehicles listing" before ordering parts. Normal
orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation, parts
should be ordered on a CSO = Customer Special Order.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Recalls for Headliner: > 07281A > May > 08 > Recall - Head Impact Noncompliance > Page
15685
and involved in a product program is very important in maintaining customer satisfaction. Dealers
are to ensure that these customers understand that shuttle service or some other form of courtesy
transportation is available and will be provided at no charge. Dealers should refer to the General
Motors Service Policies and Procedures Manual for Courtesy Transportation guidelines.
Claim Information
Submit a Product Recall Claim with the information shown above.
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
All unsold new vehicles in dealers possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Recalls for Headliner: > 07281A > May > 08 > Recall - Head Impact Noncompliance > Page
15686
Disclaimer
Service Procedure
1. Remove the door weather strip.
Notice:
To avoid damaging the headliner and to ensure the headliner tab hole is cut in the correct location,
it is essential to carefully align the template cross hair (1) with the edge of the headliner and the
edge of the A-pillar trim Use an X-Acto knife or equivalent utility knife to cut the tab hole in the
headliner.
Important:
There is a driver's side and a passenger's side template. The driver's side template is marked "L"
left side, and the passengers side template is marked "R" right side.
2. Align the template cross hair (1) with the edge of the A-pillar trim and edge of the headliner.
3. Mark the outline for the tab hole using an ink pen.
4. Cut the tab hole using a utility knife.
5. Insert the tab of the headliner trim piece into the tab hole.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Recalls for Headliner: > 07281A > May > 08 > Recall - Head Impact Noncompliance > Page
15687
6. Insert the A-pillar edge of the headliner trim piece (1) under the A-pillar trim (2).
7. Place a piece of Scotch(R) tape (or equivalent transparent tape) along the edge of the headliner
where the U-channel will contact the headliner.
8. Push the U-channel edge of the headliner trim piece over the top of the headliner edge.
9. Install the weather strip.
10. Examine the fit of the headliner trim piece to the headliner. Remove or reduce any gap between
the headliner and headliner trim piece by applying pressure to the headliner molding piece, if
required.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Recalls for Headliner: > 07281A > May > 08 > Recall - Head Impact Noncompliance > Page
15688
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Recalls for Headliner: > 07281A > May > 08 > Recall - Head Impact Noncompliance > Page
15689
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Headliner: > 07287A > May > 08 > Campaign - Enhanced
Head Impact Protection
Technical Service Bulletin # 07287A Date: 080528
Campaign - Enhanced Head Impact Protection
CUSTOMER SATISFACTION
Bulletin No.: 07287A
Date: May 28, 2008
Subject: 07287A - Increased Head Impact Protection
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Without Head-Curtain Side Impact Air Bags or Without Sunroof
Canadian Vehicles and Certain Export Vehicles
Supercede:
The Parts Information section in this bulletin has been revised to include the part usage for the gray
absorber kit. Please discard all copies of bulletin 07287, issued May 2008.
THIS PROGRAM IS IN EFFECT UNTIL MAY 31, 2009.
Condition
2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without a head-curtain side
impact air bag or without a sunroof not only meet but exceed government standards for head
impact protection. GM has recently made changes that add to that protection. GM is making similar
changes to vehicles built before this change was implemented.
Correction
To enhance head impact protection dealers are to install an energy-absorbing device on the driver
and passenger side headliner.
Vehicles Involved
Involved are certain 2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without
a head-curtain side impact air bag or without a sunroof and built within the VIN breakpoints shown
above.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using the GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles a listing with involved vehicles containing the complete vehicle
identification number customer name and address information has been prepared and will be
provided through GM DealerWorld Recall Information. Dealers will not have a report available if
they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Headliner: > 07287A > May > 08 > Campaign - Enhanced
Head Impact Protection > Page 15695
Parts Information
Parts required to complete this recall are to be obtained from General Motors Service and Parts
Operations (GMSPO). Please refer to your "involved vehicles listing before ordering parts. Normal
orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation parts
should be ordered on a CSO = Customer Special Order.
Service Procedure
1. Remove the door weather strip.
Notice:
To avoid damaging the headliner and to ensure the headliner tab hole is cut in the correct location,
it is essential to carefully align the template cross hair (1) with the edge of the headliner and the
edge of the A-pillar trim. Use an X-Acto knife or equivalent utility knife to cut the tab hole in the
headliner.
Important:
There is a driver's side and a passenger's side template. The driver's side template is marked "L"
left side, and the passenger's side template is marked "R" right side.
2. Align the template cross hair (1) with the edge of the A-pillar trim and edge of the headliner.
3. Mark the outline for the tab hole using an ink pen.
4. Cut the tab hole using a utility knife.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Headliner: > 07287A > May > 08 > Campaign - Enhanced
Head Impact Protection > Page 15696
5. Insert the tab of the headliner trim piece into the tab hole.
6. Insert the A-pillar edge of the headliner trim piece (1) under the A-pillar trim (2).
7. Place a piece of Scotch(R) tape (or equivalent transparent tape) along the edge of the headliner
where the U-channel will contact the headliner
8. Push the U-channel edge of the headliner trim piece over the top of the headliner edge.
9. Install the weather strip.
10. Examine the fit of the headliner trim piece to the headliner. Remove or reduce any gap between
the headliner and headliner trim piece by applying pressure to the headliner molding piece if
required.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Headliner: > 07287A > May > 08 > Campaign - Enhanced
Head Impact Protection > Page 15697
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
Submit a Product Recall Claim with the information shown above.
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers regardless of
mileage, age of vehicle, or ownership, through May 31, 2009.
Customers who have recently purchased vehicles sold from your vehicle inventory and for which
there is no customer information indicated on the dealer listing are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory or is in your
dealership for service through May 31, 2009 you must take the steps necessary to be sure the
recall correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Headliner: > 07287A > May > 08 > Campaign - Enhanced
Head Impact Protection > Page 15698
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Headliner: > 07281A > May > 08 > Recall - Head Impact
Noncompliance
Technical Service Bulletin # 07281A Date: 080514
Recall - Head Impact Noncompliance
# 07281A: FMVSS Noncompliance - Head Impact Protection - Add Additional Energy-Absorbing
Device (US and Export) (May 14, 2008)
Subject: 07281A -- Head Impact Protection - Add Additional Energy - Absorbing Device
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Without Head-Curtain Side Impact Air Bags or Without Sunroof U.S. Vehicles and Certain Export
Vehicles
The Parts Information section in this bulletin has been revised to include part usage for the gray
absorber kit. Please discard all copies of bulletin 07281, issued May 2008.
Condition
General Motors has decided that certain 2007 model year Chevrolet Equinox and Pontiac Torrent
vehicles built without a head-curtain side impact air bag or without a sunroof fail to conform to
Federal Motor Vehicle Safety Standard (FMVSS) 201, "Occupant Protection in Interior Impact". In
tests, the Standard's requirement was exceeded at one test point. If a front seat occupant's head
contacts that point in a crash, the occupants injury could be increased.
Correction
Dealers are to install an energy-absorbing device on the driver and passenger side headliner.
Vehicles Involved
Involved are certain 2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without
a head-curtain side impact air bag or without a sunroof and built within the VIN breakpoints above.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided through GM DealerWorld Recall Information. Dealers will not have a report available if
they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Parts Information
Parts required to complete this recall are to be obtained from General Motors Service and Parts
Operations (GMSPO). Please refer to your "involved vehicles listing" before ordering parts. Normal
orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation, parts
should be ordered on a CSO = Customer Special Order.
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Headliner: > 07281A > May > 08 > Recall - Head Impact
Noncompliance > Page 15703
and involved in a product program is very important in maintaining customer satisfaction. Dealers
are to ensure that these customers understand that shuttle service or some other form of courtesy
transportation is available and will be provided at no charge. Dealers should refer to the General
Motors Service Policies and Procedures Manual for Courtesy Transportation guidelines.
Claim Information
Submit a Product Recall Claim with the information shown above.
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an identical or reasonably equivalent
vehicle at no charge or to a refund of the purchase price less a reasonable allowance for
depreciation. To avoid having to provide these burdensome remedies, every effort must be made
to promptly schedule an appointment with each customer and to repair their vehicle as soon as
possible. In the recall notification letters, customers are told how to contact the US National
Highway Traffic Safety Administration if the recall is not completed within a reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. Under Title 49, Section 30112 of the United States Code, it is illegal
for a dealer to sell a new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
All unsold new vehicles in dealers possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Headliner: > 07281A > May > 08 > Recall - Head Impact
Noncompliance > Page 15704
Disclaimer
Service Procedure
1. Remove the door weather strip.
Notice:
To avoid damaging the headliner and to ensure the headliner tab hole is cut in the correct location,
it is essential to carefully align the template cross hair (1) with the edge of the headliner and the
edge of the A-pillar trim Use an X-Acto knife or equivalent utility knife to cut the tab hole in the
headliner.
Important:
There is a driver's side and a passenger's side template. The driver's side template is marked "L"
left side, and the passengers side template is marked "R" right side.
2. Align the template cross hair (1) with the edge of the A-pillar trim and edge of the headliner.
3. Mark the outline for the tab hole using an ink pen.
4. Cut the tab hole using a utility knife.
5. Insert the tab of the headliner trim piece into the tab hole.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Headliner: > 07281A > May > 08 > Recall - Head Impact
Noncompliance > Page 15705
6. Insert the A-pillar edge of the headliner trim piece (1) under the A-pillar trim (2).
7. Place a piece of Scotch(R) tape (or equivalent transparent tape) along the edge of the headliner
where the U-channel will contact the headliner.
8. Push the U-channel edge of the headliner trim piece over the top of the headliner edge.
9. Install the weather strip.
10. Examine the fit of the headliner trim piece to the headliner. Remove or reduce any gap between
the headliner and headliner trim piece by applying pressure to the headliner molding piece, if
required.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Headliner: > 07281A > May > 08 > Recall - Head Impact
Noncompliance > Page 15706
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Headliner: > 07281A > May > 08 > Recall - Head Impact
Noncompliance > Page 15707
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Page 15708
Headliner: Service and Repair
Headlining Trim Panel Replacement
Removal Procedure
Notice: Use care when working around the head curtain inflator module. Sharp tools may puncture
the curtain airbag. If the head curtain inflator module is damaged in any way, it must be replaced.
Notice: If a vehicle is equipped with a head curtain inflator module ensure that the inflator module
and tether are undamaged. If tether or curtain airbag are damaged in any way, they must be
replaced.
1. Disable the SIR system. Refer to SIR Disabling and Enabling. 2. Remove the sunshade. 3.
Remove the optional reading lamp cover.
4. Disconnect the optional OnStar(R) microphone harness.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Page 15709
5. Disconnect the optional sunroof switch. 6. Remove the windshield upper garnish molding. 7.
Remove the upper center pillar molding. 8. Remove the dome lamp. 9. Remove the lock pillar
garnish molding.
10. Remove the rear corner garnish molding. 11. Remove the coat hooks.
12. Remove the rear pushpin. 13. Pull back the quarter trim panel. Refer to Rear Quarter Lower
Trim Panel Replacement. 14. Remove the door seal from the headliner edge.
15. Disconnect the headliner electrical connector behind the trim panel. 16. Fold the passenger
seat flat and the driver seat forward.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Page 15710
17. Carefully disengage the Velcro(R) and the magnet attachments from the headliner and remove
the headliner out from the liftgate opening.
Installation Procedure
1. Position the headliner into the vehicle through the liftgate opening. 2. Push on the Velcro(R) and
the magnet attachments to partially secure the liner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Page 15711
3. Install the pushpin fastener at the rear of the headliner. 4. Secure the weatherstrip over the edge
of the headliner.
5. Connect the sunroof switch electrical connectors.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Headliner > Component Information >
Technical Service Bulletins > Page 15712
6. Connect the OnStar(R) microphone electrical connector. 7. Install the reading lamp cover. 8.
Connect the OnStar(R) electrical connector. 9. Install the sunshades.
10. Install the windshield upper garnish molding. 11. Install the center pillar molding. 12. Install the
dome lamp.
13. Connect the headliner electrical connectors behind the cargo area trim panel. Connect the clips
holding the wire to the metal. 14. Install the driver side quarter trim panel. 15. Install the lock pillar
garnish moldings. 16. Install the rear garnish molding. 17. Install the coat hooks. 18. Enable the
SIR system. Refer to SIR Disabling and Enabling.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Scuff Plate > Component Information >
Service and Repair
Scuff Plate: Service and Repair
Liftgate Door Sill Plate Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Sun Visor > Component Information > Service
and Repair > Sunshade Anchor Replacement
Sun Visor: Service and Repair Sunshade Anchor Replacement
Sunshade Anchor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Sun Visor > Component Information > Service
and Repair > Sunshade Anchor Replacement > Page 15720
Sun Visor: Service and Repair Sunshade Replacement
Sunshade Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Trim Panel > Component Information >
Service and Repair > Body Rear Corner Garnish Molding Replacement
Trim Panel: Service and Repair Body Rear Corner Garnish Molding Replacement
Body Rear Corner Garnish Molding Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Trim Panel > Component Information >
Service and Repair > Body Rear Corner Garnish Molding Replacement > Page 15725
Trim Panel: Service and Repair Center Pillar Lower Garnish Molding Replacement
Center Pillar Lower Garnish Molding Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Trim Panel > Component Information >
Service and Repair > Body Rear Corner Garnish Molding Replacement > Page 15726
Trim Panel: Service and Repair Center Pillar Upper Garnish Molding Replacement
Center Pillar Upper Garnish Molding Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Trim Panel > Component Information >
Service and Repair > Body Rear Corner Garnish Molding Replacement > Page 15727
Trim Panel: Service and Repair Liftgate Trim Panel Replacement
Liftgate Trim Panel Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Trim Panel > Component Information >
Service and Repair > Body Rear Corner Garnish Molding Replacement > Page 15728
Trim Panel: Service and Repair
Body Rear Corner Garnish Molding Replacement
Body Rear Corner Garnish Molding Replacement
Center Pillar Lower Garnish Molding Replacement
Center Pillar Lower Garnish Molding Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Trim Panel > Component Information >
Service and Repair > Body Rear Corner Garnish Molding Replacement > Page 15729
Center Pillar Upper Garnish Molding Replacement
Center Pillar Upper Garnish Molding Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Trim Panel > Component Information >
Service and Repair > Body Rear Corner Garnish Molding Replacement > Page 15730
Liftgate Trim Panel Replacement
Liftgate Trim Panel Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Trim Panel > Component Information >
Service and Repair > Body Rear Corner Garnish Molding Replacement > Page 15731
Lock Pillar Upper Garnish Molding Replacement
Lock Pillar Upper Garnish Molding Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Trim Panel > Component Information >
Service and Repair > Body Rear Corner Garnish Molding Replacement > Page 15732
Rear Quarter Lower Trim Panel Replacement
Rear Quarter Lower Trim Panel Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Trim Panel > Component Information >
Service and Repair > Body Rear Corner Garnish Molding Replacement > Page 15733
Windshield Upper Garnish Molding Replacement
Windshield Upper Garnish Molding Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Interior Moulding / Trim > Trim Panel > Component Information >
Service and Repair > Body Rear Corner Garnish Molding Replacement > Page 15734
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Door Locks > Door Lock Cylinder > Component Information >
Service and Repair
Door Lock Cylinder: Service and Repair
DOOR LOCK CYLINDER REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Key > Component Information > Technical Service Bulletins >
Locks - Key Code Security Rules and Information
Key: Technical Service Bulletins Locks - Key Code Security Rules and Information
INFORMATION
Bulletin No.: 10-00-89-010
Date: May 27, 2010
Subject: Key Code Security Rules and Information on GM KeyCode Look-Up Application (Canada
Only)
Models:
2011 and Prior GM Passenger Cars and Trucks 2010 and Prior HUMMER H2, H3 2009 and Prior
Saturn and Saab 2002 and Prior Isuzu
Attention:
This bulletin has been created to address potential issues and questions regarding KeyCode
security. This bulletin should be read by all parties involved in KeyCode activity, including dealer
operator, partner security coordinator, sales, service and parts departments. A copy of this bulletin
should be printed and maintained in the parts department for use as a reference.
Important U.S. dealers should refer to Corporate Bulletin Number 10-00-89-009.
Where Are Key Codes Located?
General Motors provides access to KeyCodes through three sources when a vehicle is delivered to
a dealer. Vehicle KeyCodes are located on the original vehicle invoice to the dealership. There is a
small white bar coded tag sent with most new vehicles that also has the key code printed on it.
Dealerships should make a practice of comparing the tag's keycode numbers to the keycode listed
on the invoice. Any discrepancy should be reported immediately to the GM of Canada Key Code
Inquiry Desk. Remember to remove the key tag prior to showing vehicles to potential customers.
The third source for Key codes is through the GM KeyCode Look-Up feature within the
OEConnection D2DLink application. KeyCode Look-Up currently goes back 17 previous model
years from the current model year.
When a vehicle is received by the dealership, care should be taken to safeguard the original
vehicle invoice and KeyCode tag provided with the vehicle. Potential customers should not have
access to the invoice or this KeyCode tag prior to the sale being completed. After a sale has been
completed, the KeyCode information belongs to the customer and General Motors.
Tip
Only the original invoice contains key code information, a re-printed invoice does not.
GM KeyCode Look-Up Application for GM of Canada Dealers
All dealers should review the General Motors of Canada KeyCode Look-Up Policies and
Procedures (Service Policy & Procedures Manual Section 3.1.6 "Replacement of VIN plates &
keys").
Please note that the KeyCode Access site is restricted. Only authorized users should be using this
application. Please see your Parts Manager for site authorized users. KeyCode Look-Up currently
goes back 17 years from current model year.
Important notes about security:
- Users may not access the system from multiple computers simultaneously.
- Users may only request one KeyCode at a time.
- KeyCode information will only be available on the screen for 2 minutes.
- Each user is personally responsible for maintaining and protecting their password.
- Never share your password with others.
- User Id's are suspended after 6 consecutive failed attempts.
- User Id's are disabled if not used for 90 days.
- Processes must be in place for regular dealership reviews.
- The Parts Manager (or assigned management) must have processes in place for employee
termination or life change events. Upon termination individuals access must be turned off
immediately and access should be re-evaluated upon any position changes within the dealership.
- If you think your password or ID security has been breached, contact Dealer Systems Support at
1-800-265-0573.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Key > Component Information > Technical Service Bulletins >
Locks - Key Code Security Rules and Information > Page 15744
Each user will be required to accept the following agreement each time the KeyCode application is
used.
Key Code User Agreement
- Key codes are proprietary information belonging to General Motors Corporation and to the vehicle
owner.
- Unauthorized access to, or use of, key code information is unlawful and may subject the user to
criminal and civil penalties.
- This information should be treated as strictly confidential and should not be disclosed to anyone
unless authorized.
I will ensure that the following information is obtained prior to releasing any Key Code information:
1. Government issued picture ID (Drivers License) 2. Registration or other proof of ownership.
Registration should have normal markings from the Province that issued the registration and
possibly the
receipt for payment recorded as well.
Important
- GM takes this agreement seriously. Each user must be certain of vehicle ownership before giving
out key codes.
- When the ownership of the vehicle is in doubt, dealership personnel should not provide the
information.
Key code requests should never be received via a fax or the internet and key codes should never
be provided to anyone in this manner. A face to face contact with the owner of the vehicle is the
expected manner that dealers will use to release a key code or as otherwise stipulated in this
bulletin or other materials.
- Key codes should NEVER be sent via a fax or the internet.
- Each Dealership should create a permanent file to document all KeyCode Look Up transactions.
Requests should be filed by VIN and in each folder retain copies of the following:
- Government issued picture ID (Drivers License)
- Registration or other proof of ownership.
- Copy of the paid customer receipt which has the name of the employee who cut and sold the key
to the customer.
- Do not put yourself or your Dealership in the position of needing to "explain" a KeyCode Look Up
to either GM or law enforcement officials.
- Dealership Management has the ability to review all KeyCode Look-Up transactions.
- Dealership KeyCode documentation must be retained for two years.
Frequently Asked Questions (FAQs) for GM of Canada Dealers
How do I request a KeyCode for customer owned vehicle that is not registered?
Scrapped, salvaged or stored vehicles that do not have a current registration should still have the
ownership verified by requesting the vehicle title, current insurance policy and / or current lien
holder information from the customers financing source. If you cannot determine if the customer is
the owner of the vehicle, do not provide the key code information. In these cases, a short
description of the vehicle (scrapped, salvaged, etc.) and the dealership location should be kept on
file. Any clarifying explanation should be entered into the comments field.
How do I document a KeyCode request for a vehicle that is being repossessed?
The repossessor must document ownership of the vehicle by providing a court ordered
repossession order and lien-holder documents prior to providing key code information. Copies of
the repossessors Drivers License and a business card should be retained by the dealership for
documentation.
What do I do if the registration information is locked in the vehicle?
Every effort should be made to obtain complete information for each request. Each Dealership will
have to decide on a case by case basis if enough information is available to verify the customer's
ownership of the vehicle. Other forms of documentation include vehicle title, insurance policy, and
or current lien information from the customers financing source. Dealership Management must be
involved in any request without complete information. If you cannot determine if the customer is the
owner of the vehicle, do not provide the key code information.
Can I get a print out of the information on the screen?
It is important to note that the Key Code Look Up Search Results contain sensitive and/or
proprietary information. For this reason GM recommends against printing it. If the Search Results
must be printed, store and/or dispose of the printed copy properly to minimize the risk of improper
or illegal use.
Who in the dealership has access to the KeyCode application?
Dealership Parts Manager (or assigned management) will determine, and control, who is
authorized to access the KeyCode Look Up application. However, we anticipate that dealership
parts and service management will be the primary users of the application. The KeyCode Look Up
application automatically tracks each user activity session. Information tracked by the system
includes: User name, User ID, all other entered data and the date/time of access.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Key > Component Information > Technical Service Bulletins >
Locks - Key Code Security Rules and Information > Page 15745
What if I input the VIN incorrectly?
If an incorrect VIN is entered into the system (meaning that the system does not recognize the VIN
or that the VIN has been entered incorrectly) the system will return an error message.
If I am an authorized user for the KeyCode application, can I access the application from home?
Yes.
What if I suspect key code misuse?
Your dealership should communicate the proper procedures for requesting key codes. Any
suspicious activity either within the dealership or externally should be reported to Dealer Systems
Support at 1-800-265-0573 or GM of Canada Key Code Inquiry Desk at 1-905-644-4892.
Whose key codes can I access through the system?
At this time the following Canadian vehicle codes are available through the system: Chevrolet,
Cadillac, Buick, Pontiac, GMC, HUMMER (H2 and H3 only), Oldsmobile, Saturn, Saab and Isuzu
(up to 2002 model year) for a maximum of 17 model years.
What should I do if I enter a valid VIN and the system does not produce any key code information?
Occasionally, the KeyCode Look Up application may not produce a key code for a valid VIN. This
may be the result of new vehicle information not yet available. In addition, older vehicle information
may have been sent to an archive status. If you do not receive a key code returned for valid VIN,
you should contact GM of Canada Key Code Inquiry Desk at 1-905-644-4892.
How do I access KeyCodes if the KeyCode Look-up system is down?
If the KeyCode Look-up system is temporarily unavailable, you can contact the original selling
dealer who may have it on file or contact GM of Canada Key Code Inquiry Desk at
1-905-644-4892. If the customer is dealing with an emergency lock-out situation, you need to have
the customer contact Roadside assistance, OnStar if subscribed, or 911.
What should I do if the KeyCode from the look-up system does not work on the vehicle?
On occasion a dealer may encounter a KeyCode that will not work on the vehicle in question. In
cases where the KeyCode won't work you will need to verify with the manufacturer of the cutting
equipment that the key has been cut correctly. If the key has been cut correctly you may be able to
verify the proper KeyCode was given through the original selling dealer. When unable to verify the
KeyCode through the original selling dealer contact GM of Canada Key Code Inquiry Desk at
1-905-644-4892. If the key has been cut correctly and the code given does not work, the lock
cylinder may have been changed. In these situations following the proper SI document for recoding
a key or replacing the lock cylinder may be necessary.
How long do I have to keep KeyCode Records?
Dealership KeyCode documentation must be retained for two years.
Can I get a KeyCode changed in the Look-Up system?
Yes, KeyCodes can be changed in the Look-Up system if a lock cylinder has been changed.
Contact GM of Canada Key Code Inquiry Desk at 1-905-644-4892.
What information do I need before I can provide a driver of a company fleet vehicle Keys or
KeyCode information?
The dealership should have a copy of the individual's driver's license, proof of employment and
registration. If there is any question as to the customer's employment by the fleet company, the
dealer should attempt to contact the fleet company for verification. If there is not enough
information to determine ownership and employment, this information should not be provided.
How do I document a request from an Independent Repair facility for a KeyCode or Key?
The independent must provide a copy of their driver's license, proof of employment and signed
copy of the repair order for that repair facility. The repair order must include customer's name,
address, VIN, city, province and license plate number. Copies of this information must be included
in your dealer KeyCode file.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Key > Component Information > Technical Service Bulletins >
Locks - Key Code Security Rules and Information > Page 15746
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module
Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module
Programming > Page 15756
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module
Programming > Page 15757
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module
Programming > Page 15758
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module
Programming > Page 15759
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module
Programming > Page 15760
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry Transmitter/Module
Programming > Page 15761
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor
Range/TPM Message Displayed
Keyless Entry Module: Customer Interest Keyless Systems - Poor Range/TPM Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor
Range/TPM Message Displayed > Page 15767
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor
Range/TPM Message Displayed > Page 15768
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 06-08-52-002G >
Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 06-08-52-002G >
Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15774
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 06-08-52-002G >
Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15775
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15780
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15781
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15782
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15783
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15784
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15785
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 06-08-52-002G > Nov >
08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 06-08-52-002G > Nov >
08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15791
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 06-08-52-002G > Nov >
08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15792
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15798
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15799
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15800
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15801
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15802
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C > Feb > 07 >
Campaign - Keyless Entry Transmitter/Module Programming > Page 15803
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Page 15804
Keyless Entry Module: Diagrams
Remote Function Connector End Views
Remote Control Door Lock Receiver (RCDRL)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Module > Component
Information > Technical Service Bulletins > Page 15805
Keyless Entry Module: Service and Repair
Remote Control Door Lock Receiver Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 >
Keyless Systems - Poor Range/TPM Message Displayed
Keyless Start Transmitter: Customer Interest Keyless Systems - Poor Range/TPM Message
Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 >
Keyless Systems - Poor Range/TPM Message Displayed > Page 15815
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 >
Keyless Systems - Poor Range/TPM Message Displayed > Page 15816
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter Diagnostic Tip
Keyless Start Transmitter: All Technical Service Bulletins Keyless System - Remote Start
Transmitter Diagnostic Tip
INFORMATION
Bulletin No.: 09-08-52-004A
Date: January 08, 2010
Subject: Diagnostic Tips/Recommendations on GM Accessory 2-Way Remote Start Transmitter
When Transmitter Battery is Weak or Dead
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac DTS, Escalade, Escalade
ESV, Escalade EXT 2007-2009 Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Cobalt, HHR,
Impala, Silverado, Tahoe 2009-2010 Chevrolet Malibu, Traverse 2007-2010 GMC Acadia, Sierra,
Yukon 2007-2009 Pontiac G5, G6, Solstice, Torrent 2008-2009 Pontiac G8 2007-2010 Saturn
AURA, OUTLOOK, SKY, VUE 2007-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models and model years. Please discard
Corporate Bulletin Number 09-08-52-004 (Section 08 - Body and Accessories).
Follow these procedures if a customer comments that their GM Accessory 2-way transmitter
stopped communicating with the vehicle.
About GM Accessory 2-Way Remote Start
The GM Accessory 2-way transmitter has the ability to operate a second vehicle equipped with a
2-way advanced remote start system, but often the 2-way transmitter may only be coded to one
vehicle. If the customer presses the left side button twice within one second, the 2-way transmitter
will enter second vehicle mode and will not control the original vehicle until a subsequent double
press of the left side button places the transmitter back in first vehicle mode. Each vehicle mode of
the 2-way transmitter should be thought of as an individual transmitter with its own unique code.
Test the Transmitter Battery
Note
This test should be performed prior to releasing the vehicle or transmitter to the customer.
All transmitter batteries should be tested immediately after installation of a 2-way remote start kit or
replacement of a transmitter battery using the following procedure.
1. Press the unlock button on the transmitter eight times consecutively. 2. After the eighth press of
the unlock button, observe the battery gauge located in the upper right corner of the LCD display.
The gauge should read
full (three bars inside the battery icon).
If after having a new battery installed, the battery goes dead within five months, the transmitter
could have high sleep current, causing the battery to go dead. Replace the transmitter.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition
exhibited is resolved without completing every step, the remaining steps do not need to be
performed.
Determine if Transmitter is in Second Vehicle Mode
1. Press and release any of the face buttons on the 2-way transmitter and observe the display on
power-up. 2. If the 2-way transmitter is in second vehicle mode, the second vehicle icon will be
displayed on the left side of the transmitter display. Is the 2-way
transmitter in second vehicle mode?
If Yes, the 2-way transmitter is working properly.
- Press and release the left side button twice within one second. The 2-way transmitter should exit
second vehicle mode.
- Press and release the lock button. Press and release the unlock button.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter Diagnostic Tip > Page 15822
- Confirm that the vehicle responds with the appropriate lock and unlock function.
- If Yes , the 2-way transmitter was in mode B.
- Press and release the left side button twice within one second. The 2-way transmitter should
enter second vehicle mode.
- Use the "next available slot" method in the scan tool to program the 2-way transmitter to the
2-way RCDLR. Refer to Remote Control Door Lock Transmitter Programming in SI.
- Both vehicle modes of the 2-way transmitter should now be coded to the vehicle.
If No:
The 2-way transmitter is not exhibiting the failure mode addressed by this bulletin. Refer to normal
diagnostic procedures.
Parts Information
For part numbers, usage and availability of 2-way remote start, refer to the Accessory Parts
Catalog or Corporate Bulletin Number 09-00-89-025A.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start
Keyless Start Transmitter: All Technical Service Bulletins Keyless Start - 2-Way Advanced Remote
Start
INFORMATION
Bulletin No.: 09-00-89-025A
Date: October 26, 2009
Subject: GM Accessories: 2-Way Advanced Remote Start Systems Part Information
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac Escalade ESV, EXT
2008-2010 Cadillac DTS 2007-2009 Chevrolet Equinox, HHR 2007-2010 Chevrolet Avalanche,
Cobalt, Silverado, Tahoe 2008-2010 Chevrolet Impala, Malibu 2009-2010 Chevrolet Traverse
2007-2010 GMC Acadia, Sierra, Yukon 2008-2010 HUMMER H2 2007-2009 Pontiac Torrent
2007-2010 Pontiac G5, G6 2008-2010 Pontiac G8 2010 Pontiac Solstice 2007-2010 Saturn AURA,
OUTLOOK 2009-2010 Saturn VUE 2010 Saturn SKY
Attention:
This bulletin does not apply to GMODC dealers.
Supercede: This bulletin is being revised to add part numbers. Please discard Corporate Bulletin
Number 09-00-89-025 (Section 00 - General Information).
This bulletin is being published to provide information on locating service part numbers for GM
Accessory, 2-Way Advanced Remote Start Systems.
Dealers should consult the chart below and use the correct service part. Dealers should not use
entire kit for warranty or repair work.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 15827
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 15828
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 15829
Parts Information
Service parts common to all 2-Way Advanced Remote Start Systems
Transmitter Battery 12493150
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Start Transmitter: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15834
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Start
Transmitter: > 06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15835
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter Diagnostic Tip
Keyless Start Transmitter: All Technical Service Bulletins Keyless System - Remote Start
Transmitter Diagnostic Tip
INFORMATION
Bulletin No.: 09-08-52-004A
Date: January 08, 2010
Subject: Diagnostic Tips/Recommendations on GM Accessory 2-Way Remote Start Transmitter
When Transmitter Battery is Weak or Dead
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac DTS, Escalade, Escalade
ESV, Escalade EXT 2007-2009 Chevrolet Equinox 2007-2010 Chevrolet Avalanche, Cobalt, HHR,
Impala, Silverado, Tahoe 2009-2010 Chevrolet Malibu, Traverse 2007-2010 GMC Acadia, Sierra,
Yukon 2007-2009 Pontiac G5, G6, Solstice, Torrent 2008-2009 Pontiac G8 2007-2010 Saturn
AURA, OUTLOOK, SKY, VUE 2007-2010 HUMMER H2
Supercede: This bulletin is being revised to update the models and model years. Please discard
Corporate Bulletin Number 09-08-52-004 (Section 08 - Body and Accessories).
Follow these procedures if a customer comments that their GM Accessory 2-way transmitter
stopped communicating with the vehicle.
About GM Accessory 2-Way Remote Start
The GM Accessory 2-way transmitter has the ability to operate a second vehicle equipped with a
2-way advanced remote start system, but often the 2-way transmitter may only be coded to one
vehicle. If the customer presses the left side button twice within one second, the 2-way transmitter
will enter second vehicle mode and will not control the original vehicle until a subsequent double
press of the left side button places the transmitter back in first vehicle mode. Each vehicle mode of
the 2-way transmitter should be thought of as an individual transmitter with its own unique code.
Test the Transmitter Battery
Note
This test should be performed prior to releasing the vehicle or transmitter to the customer.
All transmitter batteries should be tested immediately after installation of a 2-way remote start kit or
replacement of a transmitter battery using the following procedure.
1. Press the unlock button on the transmitter eight times consecutively. 2. After the eighth press of
the unlock button, observe the battery gauge located in the upper right corner of the LCD display.
The gauge should read
full (three bars inside the battery icon).
If after having a new battery installed, the battery goes dead within five months, the transmitter
could have high sleep current, causing the battery to go dead. Replace the transmitter.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition
exhibited is resolved without completing every step, the remaining steps do not need to be
performed.
Determine if Transmitter is in Second Vehicle Mode
1. Press and release any of the face buttons on the 2-way transmitter and observe the display on
power-up. 2. If the 2-way transmitter is in second vehicle mode, the second vehicle icon will be
displayed on the left side of the transmitter display. Is the 2-way
transmitter in second vehicle mode?
If Yes, the 2-way transmitter is working properly.
- Press and release the left side button twice within one second. The 2-way transmitter should exit
second vehicle mode.
- Press and release the lock button. Press and release the unlock button.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-08-52-004A > Jan > 10 > Keyless System - Remote Start Transmitter Diagnostic Tip > Page 15841
- Confirm that the vehicle responds with the appropriate lock and unlock function.
- If Yes , the 2-way transmitter was in mode B.
- Press and release the left side button twice within one second. The 2-way transmitter should
enter second vehicle mode.
- Use the "next available slot" method in the scan tool to program the 2-way transmitter to the
2-way RCDLR. Refer to Remote Control Door Lock Transmitter Programming in SI.
- Both vehicle modes of the 2-way transmitter should now be coded to the vehicle.
If No:
The 2-way transmitter is not exhibiting the failure mode addressed by this bulletin. Refer to normal
diagnostic procedures.
Parts Information
For part numbers, usage and availability of 2-way remote start, refer to the Accessory Parts
Catalog or Corporate Bulletin Number 09-00-89-025A.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start
Keyless Start Transmitter: All Technical Service Bulletins Keyless Start - 2-Way Advanced Remote
Start
INFORMATION
Bulletin No.: 09-00-89-025A
Date: October 26, 2009
Subject: GM Accessories: 2-Way Advanced Remote Start Systems Part Information
Models:
2007-2010 Buick Lucerne 2008-2010 Buick Enclave 2007-2010 Cadillac Escalade ESV, EXT
2008-2010 Cadillac DTS 2007-2009 Chevrolet Equinox, HHR 2007-2010 Chevrolet Avalanche,
Cobalt, Silverado, Tahoe 2008-2010 Chevrolet Impala, Malibu 2009-2010 Chevrolet Traverse
2007-2010 GMC Acadia, Sierra, Yukon 2008-2010 HUMMER H2 2007-2009 Pontiac Torrent
2007-2010 Pontiac G5, G6 2008-2010 Pontiac G8 2010 Pontiac Solstice 2007-2010 Saturn AURA,
OUTLOOK 2009-2010 Saturn VUE 2010 Saturn SKY
Attention:
This bulletin does not apply to GMODC dealers.
Supercede: This bulletin is being revised to add part numbers. Please discard Corporate Bulletin
Number 09-00-89-025 (Section 00 - General Information).
This bulletin is being published to provide information on locating service part numbers for GM
Accessory, 2-Way Advanced Remote Start Systems.
Dealers should consult the chart below and use the correct service part. Dealers should not use
entire kit for warranty or repair work.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 15846
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 15847
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Starting System > Keyless Start
Transmitter > Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Start
Transmitter: > 09-00-89-025A > Oct > 09 > Keyless Start - 2-Way Advanced Remote Start > Page 15848
Parts Information
Service parts common to all 2-Way Advanced Remote Start Systems
Transmitter Battery 12493150
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Transmitter > Keyless Entry
Transmitter Battery > Component Information > Service and Repair
Keyless Entry Transmitter Battery: Service and Repair
Transmitter Battery Replacement
Notice: Use of the wrong battery size may damage the transmitter.
Notice: When removing the battery, use care not to touch any of the circuitry. Static from your body
transferred to these surfaces may damage the transmitter.
Important: If the transmitter won't work, perform the RKE System Check before replacing the
battery. Also, before replacing the battery in the transmitter, make sure that the battery is touching
both the negative and positive contacts inside of the transmitter.
For battery replacement, use a Panasonic type CR2032 3-volt battery, or equivalent.
1. Use a small coin, or flat-head screwdriver, to separate the bottom of the transmitter from the top.
Notice: Do not use sharp objects to help slide the battery out of the clip. This may result in damage
to the circuit board.
2. Remove the circuit board from the transmitter housing and key pad by pressing on the LOCK
button.
3. Remove the battery by sliding the battery out of the battery clip. This may require a push from
the back side of the clip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Keyless Entry > Keyless Entry Transmitter > Keyless Entry
Transmitter Battery > Component Information > Service and Repair > Page 15853
4. Replace the battery with the new one making sure that the (+) side of the battery faces away
from the circuit board.
Important: Be careful not to pinch the key pad while closing the housing.
5. Reassemble the circuit board and key pad, and replace them in the transmitter housing which
does not contain the key pad openings.
6. Line up and replace the lower housing by snapping the upper and lower housings together. 7.
Test the operation of the transmitter with the vehicle by pressing and holding the LOCK and
UNLOCK buttons for 7 or more seconds. This is
required to reestablish communications with the vehicle.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Power Locks > Power Door Lock Switch > Component
Information > Locations
Power Door Lock Switch: Locations
Driver Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Power Locks > Power Door Lock Switch > Component
Information > Locations > Page 15858
Passenger Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Locks > Power Locks > Power Door Lock Switch > Component
Information > Locations > Page 15859
Power Door Lock Switch: Service and Repair
POWER DOOR LOCK SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Mirrors > Heated Element, Mirror > Component Information > Technical
Service Bulletins > Mirrors - Heated Mirrors, Defrosting Time
Heated Element: Technical Service Bulletins Mirrors - Heated Mirrors, Defrosting Time
INFORMATION
Bulletin No.: 08-08-64-011A
Date: February 25, 2010
Subject: Information on Heated Electrochromatic Outside Rearview Mirror Performance
Models:
2010 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2009 and Prior
HUMMER H2, H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 08-08-64-011 (Section 08 - Body and Accessories).
Defrosting Time/Performance Concern
The electrochromatic (auto-dimming) outside rearview mirror used on the driver's side of many GM
vehicles is slower to defrost than the passenger side outside rearview mirror.
This is a normal condition. The glass on the driver's side electrochromatic mirror is twice as thick as
the traditional glass on the passenger side mirror. The heating elements for the mirrors on both
sides draw the same wattage, therefore the driver's side mirror will take approximately twice as
long to defrost as the passenger mirror (approximately four minutes versus two minutes). Should a
customer indicate that the driver's side heated mirror is not functioning correctly, verify it's function
based upon this information prior to replacing the mirror.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Mirrors > Power Mirror Switch > Component Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Mirrors > Power Mirror Switch > Component Information > Locations >
Page 15868
Outside Rearview Mirror Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Mirrors > Power Mirror Switch > Component Information > Locations >
Page 15869
Power Mirror Switch: Service and Repair
POWER MIRROR SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Technical
Service Bulletins > Customer Interest: > 05-08-51-008C > Jun > 09 > Body - Bumps or Rust Colored Spots in Paint
Paint: Customer Interest Body - Bumps or Rust Colored Spots in Paint
TECHNICAL
Bulletin No.: 05-08-51-008C
Date: June 22, 2009
Subject: Bumps or Rust Colored Spots in Paint Due to Rail or Iron Dust (Remove Rail Dust)
Models:
1994-2010 GM Passenger Cars and Trucks (Including Saturn) 2003-2010 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 05-08-51-008B (Section 08 - Body and Accessories).
Condition
Visible rust colored spots or bumps on a vehicle's paint surface from rail or iron dust.
Cause
Rail dust comes from tiny iron particles produced from the friction between train wheels and the
tracks and gets deposited on the vehicle surfaces. Iron dust can get deposited on the surface if the
vehicle is stored near any operation producing iron dust such as an iron ore yard. Either material
can lay on top of, or become embedded in, the paint surface.
Correction
Because the severity of the condition varies, proper diagnosis of the damage is critical to the
success of repairs. Diagnosis should be performed on horizontal surfaces (hood, roof, deck lid, pick
up box, etc.) after the vehicle has been properly cleaned. There are two types of repair materials
recommended to repair rail dust or iron dust:
1. GEL TYPE OXALIC ACID:
- Has the characteristics of the liquid type oxalic acid but stays where you put it because of its gel
consistency.
2. CLAY TYPE NON-ACID BASED:
- Requires surface lubricant during use. - Has different grades available.
Caution
Rail dust remover (Oxalic Acid) is an acidic substance containing chemicals that will break down
the iron particles embedded in the finish. When working with rail dust remover, use the necessary
safety equipment, including gloves and goggles. Follow the chemical manufacturer's directions
closely because it may require special handling and disposal.
If, upon inspection, some particles are still present, the various chemical manufacturer's processes
can be repeated.
After the removal process, small pits may remain in the clearcoat and can be corrected, in most
cases, with a finesse/polish operation.
Procedure
1. Move the vehicle to a cool shaded area and make sure that the vehicle surfaces are cool during
the removal process. DO NOT PERFORM THE
REMOVAL PROCESS IN DIRECT SUNLIGHT OR ON A VEHICLE WITH HOT OR WARM BODY
PANELS.
2. Wash the vehicle with soap and water. Dry it immediately and clean the affected areas with a
wax and grease remover. 3. Perform the removal process according to the chemical
manufacturer's directions.
Once the damage has been repaired, the final step involves a polishing process.
Rail Dust Remover Manufacturers
Use the chemical manufacturers listed below, or equivalent:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Technical
Service Bulletins > Customer Interest: > 05-08-51-008C > Jun > 09 > Body - Bumps or Rust Colored Spots in Paint > Page
15879
Auto Magic(R) or Clay Magic(R) products available from:
Auto Wax Company, Inc. 1275 Round Table Dr. Dallas, TX 75247 (800) 826-0828 (Toll-Free) or
(214) 631-4000 (Local) Fax (214) 634-1342 www.automagic.com
[email protected]
E038 Fallout Gel or E038E Liquid Fallout Remover II available from:
Valvoline Car Brite Company 1910 South State Avenue Indianapolis, In 46203 (800) 347-2439 (Toll
Free) or (317) 788-9925 (Local) Fax (317) 788-9930 www.carbrite.com
[email protected] *We
believe these sources and their products to be reliable. There may be additional manufacturers of
such products. General Motors does not endorse, indicate any preference for or assume any
responsibility for the products from these firms or for any such items which may be available from
other sources.
If rail dust remover is not available in your area, call one of the numbers listed above for a
distributor near your location.
Warranty Information (excluding Saab U.S. Models)
Important Refer to the Policy & Procedures Manual, section 1.2.1.7 for detailed information
regarding warranty coverage for this condition.
Important In certain cases where the vehicle finish is severely damaged and the actual repair time
exceeds the published time, the additional time should be submitted in the "Other Labor Hours"
field.
Warranty Information (Saab U.S. Models)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Technical
Service Bulletins > All Technical Service Bulletins for Paint: > 05-08-51-008C > Jun > 09 > Body - Bumps or Rust Colored
Spots in Paint
Paint: All Technical Service Bulletins Body - Bumps or Rust Colored Spots in Paint
TECHNICAL
Bulletin No.: 05-08-51-008C
Date: June 22, 2009
Subject: Bumps or Rust Colored Spots in Paint Due to Rail or Iron Dust (Remove Rail Dust)
Models:
1994-2010 GM Passenger Cars and Trucks (Including Saturn) 2003-2010 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 05-08-51-008B (Section 08 - Body and Accessories).
Condition
Visible rust colored spots or bumps on a vehicle's paint surface from rail or iron dust.
Cause
Rail dust comes from tiny iron particles produced from the friction between train wheels and the
tracks and gets deposited on the vehicle surfaces. Iron dust can get deposited on the surface if the
vehicle is stored near any operation producing iron dust such as an iron ore yard. Either material
can lay on top of, or become embedded in, the paint surface.
Correction
Because the severity of the condition varies, proper diagnosis of the damage is critical to the
success of repairs. Diagnosis should be performed on horizontal surfaces (hood, roof, deck lid, pick
up box, etc.) after the vehicle has been properly cleaned. There are two types of repair materials
recommended to repair rail dust or iron dust:
1. GEL TYPE OXALIC ACID:
- Has the characteristics of the liquid type oxalic acid but stays where you put it because of its gel
consistency.
2. CLAY TYPE NON-ACID BASED:
- Requires surface lubricant during use. - Has different grades available.
Caution
Rail dust remover (Oxalic Acid) is an acidic substance containing chemicals that will break down
the iron particles embedded in the finish. When working with rail dust remover, use the necessary
safety equipment, including gloves and goggles. Follow the chemical manufacturer's directions
closely because it may require special handling and disposal.
If, upon inspection, some particles are still present, the various chemical manufacturer's processes
can be repeated.
After the removal process, small pits may remain in the clearcoat and can be corrected, in most
cases, with a finesse/polish operation.
Procedure
1. Move the vehicle to a cool shaded area and make sure that the vehicle surfaces are cool during
the removal process. DO NOT PERFORM THE
REMOVAL PROCESS IN DIRECT SUNLIGHT OR ON A VEHICLE WITH HOT OR WARM BODY
PANELS.
2. Wash the vehicle with soap and water. Dry it immediately and clean the affected areas with a
wax and grease remover. 3. Perform the removal process according to the chemical
manufacturer's directions.
Once the damage has been repaired, the final step involves a polishing process.
Rail Dust Remover Manufacturers
Use the chemical manufacturers listed below, or equivalent:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Technical
Service Bulletins > All Technical Service Bulletins for Paint: > 05-08-51-008C > Jun > 09 > Body - Bumps or Rust Colored
Spots in Paint > Page 15885
Auto Magic(R) or Clay Magic(R) products available from:
Auto Wax Company, Inc. 1275 Round Table Dr. Dallas, TX 75247 (800) 826-0828 (Toll-Free) or
(214) 631-4000 (Local) Fax (214) 634-1342 www.automagic.com
[email protected]
E038 Fallout Gel or E038E Liquid Fallout Remover II available from:
Valvoline Car Brite Company 1910 South State Avenue Indianapolis, In 46203 (800) 347-2439 (Toll
Free) or (317) 788-9925 (Local) Fax (317) 788-9930 www.carbrite.com
[email protected] *We
believe these sources and their products to be reliable. There may be additional manufacturers of
such products. General Motors does not endorse, indicate any preference for or assume any
responsibility for the products from these firms or for any such items which may be available from
other sources.
If rail dust remover is not available in your area, call one of the numbers listed above for a
distributor near your location.
Warranty Information (excluding Saab U.S. Models)
Important Refer to the Policy & Procedures Manual, section 1.2.1.7 for detailed information
regarding warranty coverage for this condition.
Important In certain cases where the vehicle finish is severely damaged and the actual repair time
exceeds the published time, the additional time should be submitted in the "Other Labor Hours"
field.
Warranty Information (Saab U.S. Models)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Technical
Service Bulletins > All Technical Service Bulletins for Paint: > 08-08-51-002 > Mar > 08 > Body - TPO Fascia Cleaning Prior
to Painting
Paint: All Technical Service Bulletins Body - TPO Fascia Cleaning Prior to Painting
INFORMATION
Bulletin No.: 08-08-51-002
Date: March 12, 2008
Subject: New Primer For TPO Fascias and Affected Cleaning Process of Painting Operation
Models: 2009 and Prior Passenger Cars and Trucks 2009 and Prior HUMMER H2, H3
The purpose of this bulletin is to inform the technician that General Motors has made a change in
the primer it uses for TPO plastic for service parts. This new primer comes in several different
colors from five different suppliers. This change affects the cleaning process of the painting
operation. The new process is as follows.
1. Wash with soap and water.
2. Clean with a 50% mix of isopropyl alcohol and water (or a waterborne cleaner). Check with your
paint supplier for product recommendations.
3. Scuff sand per your paint suppliers recommendations.
Note:
The use of a solvent-type cleaner will soften, or begin to dissolve the primer. Base coats do not
have any affect on this primer.
4. Reclean with a 50% mix of isopropyl alcohol and water (or a waterborne cleaner).
All fascias, with the exception of the Corvette, Camaro, and Cadillac XLR, are made of TPO. You
may find other TPO parts with this primer. If the technician has a question as to the type of plastic
they are painting, inspect the back of the part for the plastic symbol (TPO).
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Technical
Service Bulletins > All Other Service Bulletins for Paint: > 08-08-51-002 > Mar > 08 > Body - TPO Fascia Cleaning Prior to
Painting
Paint: All Technical Service Bulletins Body - TPO Fascia Cleaning Prior to Painting
INFORMATION
Bulletin No.: 08-08-51-002
Date: March 12, 2008
Subject: New Primer For TPO Fascias and Affected Cleaning Process of Painting Operation
Models: 2009 and Prior Passenger Cars and Trucks 2009 and Prior HUMMER H2, H3
The purpose of this bulletin is to inform the technician that General Motors has made a change in
the primer it uses for TPO plastic for service parts. This new primer comes in several different
colors from five different suppliers. This change affects the cleaning process of the painting
operation. The new process is as follows.
1. Wash with soap and water.
2. Clean with a 50% mix of isopropyl alcohol and water (or a waterborne cleaner). Check with your
paint supplier for product recommendations.
3. Scuff sand per your paint suppliers recommendations.
Note:
The use of a solvent-type cleaner will soften, or begin to dissolve the primer. Base coats do not
have any affect on this primer.
4. Reclean with a 50% mix of isopropyl alcohol and water (or a waterborne cleaner).
All fascias, with the exception of the Corvette, Camaro, and Cadillac XLR, are made of TPO. You
may find other TPO parts with this primer. If the technician has a question as to the type of plastic
they are painting, inspect the back of the part for the plastic symbol (TPO).
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Technical
Service Bulletins > All Other Service Bulletins for Paint: > Page 15895
Paint: By Symptom
Technical Service Bulletin # 05-08-51-008C Date: 090622
Body - Bumps or Rust Colored Spots in Paint
TECHNICAL
Bulletin No.: 05-08-51-008C
Date: June 22, 2009
Subject: Bumps or Rust Colored Spots in Paint Due to Rail or Iron Dust (Remove Rail Dust)
Models:
1994-2010 GM Passenger Cars and Trucks (Including Saturn) 2003-2010 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 05-08-51-008B (Section 08 - Body and Accessories).
Condition
Visible rust colored spots or bumps on a vehicle's paint surface from rail or iron dust.
Cause
Rail dust comes from tiny iron particles produced from the friction between train wheels and the
tracks and gets deposited on the vehicle surfaces. Iron dust can get deposited on the surface if the
vehicle is stored near any operation producing iron dust such as an iron ore yard. Either material
can lay on top of, or become embedded in, the paint surface.
Correction
Because the severity of the condition varies, proper diagnosis of the damage is critical to the
success of repairs. Diagnosis should be performed on horizontal surfaces (hood, roof, deck lid, pick
up box, etc.) after the vehicle has been properly cleaned. There are two types of repair materials
recommended to repair rail dust or iron dust:
1. GEL TYPE OXALIC ACID:
- Has the characteristics of the liquid type oxalic acid but stays where you put it because of its gel
consistency.
2. CLAY TYPE NON-ACID BASED:
- Requires surface lubricant during use. - Has different grades available.
Caution
Rail dust remover (Oxalic Acid) is an acidic substance containing chemicals that will break down
the iron particles embedded in the finish. When working with rail dust remover, use the necessary
safety equipment, including gloves and goggles. Follow the chemical manufacturer's directions
closely because it may require special handling and disposal.
If, upon inspection, some particles are still present, the various chemical manufacturer's processes
can be repeated.
After the removal process, small pits may remain in the clearcoat and can be corrected, in most
cases, with a finesse/polish operation.
Procedure
1. Move the vehicle to a cool shaded area and make sure that the vehicle surfaces are cool during
the removal process. DO NOT PERFORM THE
REMOVAL PROCESS IN DIRECT SUNLIGHT OR ON A VEHICLE WITH HOT OR WARM BODY
PANELS.
2. Wash the vehicle with soap and water. Dry it immediately and clean the affected areas with a
wax and grease remover. 3. Perform the removal process according to the chemical
manufacturer's directions.
Once the damage has been repaired, the final step involves a polishing process.
Rail Dust Remover Manufacturers
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Technical
Service Bulletins > All Other Service Bulletins for Paint: > Page 15896
Use the chemical manufacturers listed below, or equivalent:
Auto Magic(R) or Clay Magic(R) products available from:
Auto Wax Company, Inc. 1275 Round Table Dr. Dallas, TX 75247 (800) 826-0828 (Toll-Free) or
(214) 631-4000 (Local) Fax (214) 634-1342 www.automagic.com
[email protected]
E038 Fallout Gel or E038E Liquid Fallout Remover II available from:
Valvoline Car Brite Company 1910 South State Avenue Indianapolis, In 46203 (800) 347-2439 (Toll
Free) or (317) 788-9925 (Local) Fax (317) 788-9930 www.carbrite.com
[email protected] *We
believe these sources and their products to be reliable. There may be additional manufacturers of
such products. General Motors does not endorse, indicate any preference for or assume any
responsibility for the products from these firms or for any such items which may be available from
other sources.
If rail dust remover is not available in your area, call one of the numbers listed above for a
distributor near your location.
Warranty Information (excluding Saab U.S. Models)
Important Refer to the Policy & Procedures Manual, section 1.2.1.7 for detailed information
regarding warranty coverage for this condition.
Important In certain cases where the vehicle finish is severely damaged and the actual repair time
exceeds the published time, the additional time should be submitted in the "Other Labor Hours"
field.
Warranty Information (Saab U.S. Models)
Disclaimer
Technical Service Bulletin # 05-08-51-008C Date: 090622
Body - Bumps or Rust Colored Spots in Paint
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Technical
Service Bulletins > All Other Service Bulletins for Paint: > Page 15897
TECHNICAL
Bulletin No.: 05-08-51-008C
Date: June 22, 2009
Subject: Bumps or Rust Colored Spots in Paint Due to Rail or Iron Dust (Remove Rail Dust)
Models:
1994-2010 GM Passenger Cars and Trucks (Including Saturn) 2003-2010 HUMMER H2
2006-2010 HUMMER H3 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 05-08-51-008B (Section 08 - Body and Accessories).
Condition
Visible rust colored spots or bumps on a vehicle's paint surface from rail or iron dust.
Cause
Rail dust comes from tiny iron particles produced from the friction between train wheels and the
tracks and gets deposited on the vehicle surfaces. Iron dust can get deposited on the surface if the
vehicle is stored near any operation producing iron dust such as an iron ore yard. Either material
can lay on top of, or become embedded in, the paint surface.
Correction
Because the severity of the condition varies, proper diagnosis of the damage is critical to the
success of repairs. Diagnosis should be performed on horizontal surfaces (hood, roof, deck lid, pick
up box, etc.) after the vehicle has been properly cleaned. There are two types of repair materials
recommended to repair rail dust or iron dust:
1. GEL TYPE OXALIC ACID:
- Has the characteristics of the liquid type oxalic acid but stays where you put it because of its gel
consistency.
2. CLAY TYPE NON-ACID BASED:
- Requires surface lubricant during use. - Has different grades available.
Caution
Rail dust remover (Oxalic Acid) is an acidic substance containing chemicals that will break down
the iron particles embedded in the finish. When working with rail dust remover, use the necessary
safety equipment, including gloves and goggles. Follow the chemical manufacturer's directions
closely because it may require special handling and disposal.
If, upon inspection, some particles are still present, the various chemical manufacturer's processes
can be repeated.
After the removal process, small pits may remain in the clearcoat and can be corrected, in most
cases, with a finesse/polish operation.
Procedure
1. Move the vehicle to a cool shaded area and make sure that the vehicle surfaces are cool during
the removal process. DO NOT PERFORM THE
REMOVAL PROCESS IN DIRECT SUNLIGHT OR ON A VEHICLE WITH HOT OR WARM BODY
PANELS.
2. Wash the vehicle with soap and water. Dry it immediately and clean the affected areas with a
wax and grease remover. 3. Perform the removal process according to the chemical
manufacturer's directions.
Once the damage has been repaired, the final step involves a polishing process.
Rail Dust Remover Manufacturers
Use the chemical manufacturers listed below, or equivalent:
Auto Magic(R) or Clay Magic(R) products available from:
Auto Wax Company, Inc.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Technical
Service Bulletins > All Other Service Bulletins for Paint: > Page 15898
1275 Round Table Dr. Dallas, TX 75247 (800) 826-0828 (Toll-Free) or (214) 631-4000 (Local) Fax
(214) 634-1342 www.automagic.com
[email protected] E038 Fallout Gel or E038E
Liquid Fallout Remover II available from:
Valvoline Car Brite Company 1910 South State Avenue Indianapolis, In 46203 (800) 347-2439 (Toll
Free) or (317) 788-9925 (Local) Fax (317) 788-9930 www.carbrite.com
[email protected] *We
believe these sources and their products to be reliable. There may be additional manufacturers of
such products. General Motors does not endorse, indicate any preference for or assume any
responsibility for the products from these firms or for any such items which may be available from
other sources.
If rail dust remover is not available in your area, call one of the numbers listed above for a
distributor near your location.
Warranty Information (excluding Saab U.S. Models)
Important Refer to the Policy & Procedures Manual, section 1.2.1.7 for detailed information
regarding warranty coverage for this condition.
Important In certain cases where the vehicle finish is severely damaged and the actual repair time
exceeds the published time, the additional time should be submitted in the "Other Labor Hours"
field.
Warranty Information (Saab U.S. Models)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Service
Precautions > Technician Safety Information
Paint: Technician Safety Information
Basecoat/Clearcoat Paint Systems
CAUTION:
- Exposure to isocyanates during paint preparation and application processes can cause severe
breathing problems. Read and follow all of the instructions from the manufacturers of painting
materials, equipment, and protective gear.
- Approved safety glasses and gloves should be worn when performing this procedure to reduce
the chance of personal injury.
All paint finish repairs of rigid exterior surfaces must meet GM standards. The GM Approved
Refinish Materials book GM P/N
GM4901M-D identifies the paint systems you may use. Always refer to the latest revision of the
4901M-D book. All approved products, including volatile organic compound (VOC) compliant
regulations are listed in the system approach recommended by the individual manufacturer. Refer
to the manufacturer's instructions for the detailed procedures for materials used in the paint system
in the painting repairs of rigid exterior surfaces.
All components of an approved paint system have been engineered in order to ensure proper
adhesion between layers.If necessary, spot repairs or color blending in an open panel can be done.
However, do not blend clear coat in an open panel. Always apply clearcoat to the next break point
(body side molding, feature line, or the next panel)
Do not mix paint systems or substitute a product of one manufacturer for another manufacturer's
product.
If incompatible products are used together the following problems may occur:
- Lifting of primer coats caused by overly aggressive solvents in subsequent layers
- Loss of adhesion between layers due to incompatibility of resin systems
- Solvent popping or pin holing due to inappropriate solvent selection
- Poor through-curing due to incompatible hardener resins or insufficient reactivity
- Gloss reduction due to incompatible resins and/or solvents
- Poor color accuracy due to pigment interactions with incompatible resins and/or solvents
- Film defects (craters, blisters, orange peel loss of gloss) due to the use of inferior quality raw
materials in incompatible products.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Service
Precautions > Technician Safety Information > Page 15901
Paint: Vehicle Damage Warnings
Basecoat/Clearcoat Paint Systems
Basecoat/Clearcoat Paint Systems
CAUTION:
- Exposure to isocyanates during paint preparation and application processes can cause severe
breathing problems. Read and follow all of the instructions from the manufacturers of painting
materials, equipment, and protective gear.
- Approved safety glasses and gloves should be worn when performing this procedure to reduce
the chance of personal injury.
All paint finish repairs of rigid exterior surfaces must meet GM standards. The GM Approved
Refinish Materials book GM P/N
GM4901M-D identifies the paint systems you may use. Always refer to the latest revision of the
4901M-D book. All approved products, including volatile organic compound (VOC) compliant
regulations are listed in the system approach recommended by the individual manufacturer. Refer
to the manufacturer's instructions for the detailed procedures for materials used in the paint system
in the painting repairs of rigid exterior surfaces.
All components of an approved paint system have been engineered in order to ensure proper
adhesion between layers.If necessary, spot repairs or color blending in an open panel can be done.
However, do not blend clear coat in an open panel. Always apply clearcoat to the next break point
(body side molding, feature line, or the next panel)
Do not mix paint systems or substitute a product of one manufacturer for another manufacturer's
product.
If incompatible products are used together the following problems may occur:
- Lifting of primer coats caused by overly aggressive solvents in subsequent layers
- Loss of adhesion between layers due to incompatibility of resin systems
- Solvent popping or pin holing due to inappropriate solvent selection
- Poor through-curing due to incompatible hardener resins or insufficient reactivity
- Gloss reduction due to incompatible resins and/or solvents
- Poor color accuracy due to pigment interactions with incompatible resins and/or solvents
- Film defects (craters, blisters, orange peel loss of gloss) due to the use of inferior quality raw
materials in incompatible products.
Brake Fluid Effects on Paint and Electrical Components Notice
Brake Fluid Effects on Paint and Electrical Components Notice
Notice: Avoid spilling brake fluid onto painted surfaces, electrical connections, wiring, or cables.
Brake fluid will damage painted surfaces and cause corrosion to electrical components. If any
brake fluid comes in contact with painted surfaces, immediately flush the area with water. If any
brake fluid comes in contact with electrical connections, wiring, or cables, use a clean shop cloth to
wipe away the fluid.
Clearcoat/Ultraviolet Screeners Notice
Clearcoat/Ultraviolet Screeners Notice
Notice: Removing more than 0.5 mils of the clearcoat can result in early paint failure. The clearcoat
contains ultraviolet screeners. Do not finesse sand more than what is required to remove the
defect.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Service
Precautions > Page 15902
Paint: Application and ID
Paint Identification
Caution: Exposure to isocyanates during paint preparation and application processes can cause
severe breathing problems. Read and follow all of the instructions from the manufacturers of
painting materials, equipment, and protective gear.
Important: Always refer to the GM Approved Refinish Materials book GM P/N 4901M-D. This book
identifies the paint systems you may use.
Use the service parts identification label to identify the type of paint technology, paint codes, trim
level, and any special order paint colors on the vehicle. Refer to Vehicle Certification, Tire Place
Card, Anti-Theft, and Service Parts ID Label.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Paint, Striping and Decals > Paint > System Information > Service
Precautions > Page 15903
Paint: Service and Repair
Basecoat/Clearcoat Paint Systems
Caution: Exposure to isocyanates during paint preparation and application processes can cause
severe breathing problems. Read and follow all of the instructions from the manufacturers of
painting materials, equipment, and protective gear.
All paint finish repairs of rigid exterior surfaces must meet GM standards. Refer to the latest
revision of the GM Approved Refinish Materials book GM P/N GM4901M-D to identify the paint
systems you may use that have been engineered to meet GM standards. The GM Approved
Refinish Materials book supplies all approved products, including volatile organic compound (VOC)
compliant regulations recommended by the individual manufacturer, and detailed procedures for
materials used in their paint system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 15913
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 15914
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 15915
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 15916
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 15917
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Recalls: > 07007C > Feb > 07 > Campaign - Keyless Entry
Transmitter/Module Programming > Page 15918
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems
- Poor Range/TPM Message Displayed
Keyless Entry Module: Customer Interest Keyless Systems - Poor Range/TPM Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems
- Poor Range/TPM Message Displayed > Page 15924
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Customer Interest: > 06-08-52-002G > Nov > 08 > Keyless Systems
- Poor Range/TPM Message Displayed > Page 15925
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15931
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15932
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15937
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15938
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15939
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15940
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15941
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Keyless Entry Module: > 07007C
> Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15942
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Poor Range/TPM
Message Displayed
TECHNICAL
Bulletin No.: 06-08-52-002G
Date: November 24, 2008
Subject: Remote Keyless Entry (RKE) Inoperative, Poor Range, Tire Pressure Monitor (TPM)
Message Displayed, Remote Vehicle Start (RVS) (Replace RKE Transmitters and Reprogram
Remote Control Door Lock Receiver (RCDLR))
Models: 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL 2007
Pontiac Torrent
Supercede:
This bulletin is being revised to update the Part Information. Please discard Corporate Bulletin
Number 06-08-52-002F (Section 08 - Body & Accessories).
Condition
Some customers may comment about one or more of the following conditions:
^ The remote keyless entry (RKE) transmitters will not program, function and/or the RKE
transmitter low battery message is displayed.
^ The Service Tire Monitor System message is displayed.
^ The new RKE transmitters cannot be programmed.
^ The remote keyless entry (RKE) and/or remote vehicle start (RVS) transmitter has poor range.
Cause
Any of these concerns may be caused by an internal fault with the transmitters and/or the RCDLR
software/hardware.
Correction
Important:
Check VIS to determine if Inventory Upgrade 07007 applies and has been completed. If the vehicle
is listed in the Inventory Upgrade, and the upgrade has not been performed, complete the
Inventory Upgrade before proceeding with this bulletin.
DO NOT REPLACE THE BCM OR RADIO ANTENNA MODULE.
Complete the following repair procedures:
Important:
When programming a new or existing RCDLR, the programming instructions in SI must be
followed.
^ On vehicles equipped with Tire Pressure Monitoring (TPM), the tire type and tire pressures must
be selected in the module set-up using the Tech 2(R). If this step is not performed, the RCDLR will
not retain the tire pressures after the TPM system is learned.
Tip: When selecting the Tire Type/Pressure, choose the appropriate selection on the Tech 2 based
on psi, not kPa.
^ Relearn the TPM sensors using the J 46079 and following the procedure found in SI.
^ After the learn procedure is complete, be sure to set the tire pressures according to the
information on the tire placard.
Important:
If the Inventory upgrade 07007 has been performed, skip the initial RCDLR programming step #1
and proceed to step # 2.
Reprogram the RCDLR with the latest software update available through TIS2WEB.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15948
Important:
New transmitters are identified by a star on the back of the transmitter. It is important to verify that
the replacement transmitters have a star on the back.
1. Replace both Remote Keyless Entry transmitters.
2. Program the transmitters using the procedure listed in SI.
3. Perform the following steps in the exact order:
1. Remove the key from the ignition.
2. Open and close the driver's door.
3. Close all other doors/trunk/liftgates.
4. Wait 5 minutes.
5. Press the Unlock Button and verify that the doors all unlock.
^ If the customer's concerns are corrected, no further repairs are required.
^ If the customer's concerns are NOT corrected, proceed with step 5.
Important:
In most cases, steps 1-3 will correct the customer's concern. In a few cases, it may be necessary
to replace the RCDLR.
4. If the customer's concern is still present, replace the RCDLR.
5. Program the RCDLR with the latest software update available through TIS2WEB.
6. Reprogram both Remote Keyless Entry Transmitters.
Parts Information
Warranty Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: >
06-08-52-002G > Nov > 08 > Keyless Systems - Poor Range/TPM Message Displayed > Page 15949
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C >
Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming
Technical Service Bulletin # 07007C Date: 070215
Campaign - Keyless Entry Transmitter/Module Programming
Subject: Service Update for Inventory and Customer Vehicles-Remote Keyless Entry (RKE)
Inoperative and Battery Rundown - Expires with Base Warranty # 07007C - (02/15/2007)
Models: 2006-2007 Buick Lucerne 2006-2007 Cadillac DTS 2007 Cadillac Escalade, Escalade
ESV, Escalade EXT, SRX 2006-2007 Chevrolet Impala, Monte Carlo 2007 Chevrolet Avalanche,
Equinox, Suburban, Tahoe 2007 GMC Yukon, Yukon XL 2007 Pontiac Torrent
THE SERVICE PROCEDURE IN THIS BULLETIN HAS BEEN REVISED TO ADDRESS
VEHICLES WITHOUT A DRIVER INFORMATION CENTER (DIC) AND POWER DOOR
LOCKS/WINDOWS, AND A CONDITION WHERE THE ODOMETER DISPLAYS METRIC UNITS
INSTEAD OF ENGLISH UNITS.
DISCARD ALL COPIES OF BULLETIN 07007AB ISSUED FEBRUARY 2007.
TECHNICIAN MAY EXPERIENCE SLOW PERFORMANCE USING THE TIS2 WEB
APPLICATION WHEN REPROGRAMMING THE VEHICLE TO CORRECT THE CONDITION
TECHNICIANS MAY NOTICE THE SLOWER APPLICATION PERFORMANCE FROM
MID-MORNING UNTIL LATE AFTERNOON
TO ASSIST IN IMPROVING PERFORMANCE AND REDUCE PROGRAMMING TIME IT IS
RECOMMENDED TO COMPLETE THE BULLETIN PROCEDURE ON CUSTOMER VEHICLES
FIRST. VEHICLES IN INVENTORY SHOULD BE PROGRAMMED USING OFF PEAK HOURS IF
SLOW PERFORMANCE IS EXPERIENCED.
This bulletin provides a service procedure for reprogramming the remote control door lock receiver
(RCDLR) and the remote keyless entry transmitter (FOB) on certain 2006-2007 Buick Lucerne;
2006-2007 Cadillac DTS; 2007 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX; 2006-2007
Chevrolet Impala, Monte Carlo; 2007 Chevrolet Avalanche, Equinox, Suburban, Tahoe; 2007 GMC
Yukon, Yukon XL; and 2007 Pontiac Torrent vehicles. On these vehicles, the RKE may become
inoperative.
Also, for the 2007 Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche,
Suburban, Tahoe; and GMC Yukon, Yukon XL vehicles (GMT900 Utility) only, this bulletin provides
a service procedure for reprogramming the body control module (BCM). On these vehicles, and
under certain conditions such as operating the radio with the engine off the battery can become
discharged, preventing engine start-up.
This service procedure should be completed as soon as possible on involved vehicles currently in
dealer inventory and customer vehicles that return to the dealer for any type of service during the
New Vehicle Limited Warranty coverage period.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C >
Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15955
Vehicles Involved
A list of involved vehicles currently in dealer inventory is attached to the Administrative Message
(US) or Dealer Communication (Canada) used to release this bulletin. Customer vehicles that
return for service, for any reason, and are still covered under the vehicle's base warranty, and are
within the VIN breakpoints provided below, should be checked for vehicle eligibility in the
appropriate system listed below.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS. Not all vehicles
within the above breakpoints may be involved.
Claim Information
Programming Remote Keyless Entry Transmitters Using the Driver Information Center (DIC)
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed at the same time, including the one programmed at the dealership. Those
transmitters not programmed at the same time will not function properly. Follow the procedure
below for programming. This procedure is also published in the Owner Manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C >
Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15956
RELEARN REMOTE KEY
The Driver Information Center (DIC) display allows you to match the remote keyless entry
transmitter to your vehicle. To match a remote keyless entry transmitter to your vehicle do the
following:
1. Press the vehicle information button until RELEARN REMOTE KEY displays.
2. Press the set/reset button.
3. Press and hold the lock and unlock buttons on the first transmitter at the same time for
approximately 15 seconds.
On vehicles with memory recall seats, the first transmitter learned will match driver 1 and the
second will match driver 2.
4. To match additional transmitters at this time, repeat step 3 with each new transmitter. Each
vehicle can have a maximum of eight transmitters matched to it.
5. To exit the programming mode, you must cycle the key to the OFF/LOCK position.
Disclaimer
Service Procedure
Important:
Technicians may experience low performance using the TIS2 web application when
reprogramming the vehicle to correct the condition. Technicans may notice the lower application
performance from mid-morning until late afternoon.
To assist in improving performance and reduce programming time, it is recommended to complete
the bulletin procedure on customer vehicles first. Vehicles in inventory should be programmed
during off peak hours if low performance is experienced.
Important:
This bulletin contains two reprogramming procedures, 1) reprogramming of the BCM, and 2)
reprogramming of the RCDLR. Not all vehicles require reprogramming of both.
^ The Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet Avalanche, Suburban, Tahoe;
and GMC Yukon and Yukon XL vehicles require the BCM and RCDLR reprogramming.
^ The Buick Lucerne; Cadillac DTS; Chevrolet Impala, Monte Carlo; Chevrolet Equinox; and
Pontiac Torrent require only the RCDLR reprogramming - DO NOT ATTEMPT TO REPROGRAM
THE BCM ON THESE VEHICLES.
Body Control Module Reprogramming - For Cadillac Escalade, Escalade ESV, Escalade EXT;
Chevrolet Avalanche, Suburban, Tahoe; and GMC Yukon, Yukon XL ONLY:
Important:
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 2.0 for 2007 (available on 02/04/07) and on TIS DVD
version 2.0/2007 or later, that was mailed to dealers on 02/14/2007. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C >
Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15957
Make certain all tool connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for the Body Control Module (BCM)
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
^ If the vehicle will not start, test and charge the battery. Refer to SI for battery testing and charging
information, if required.
^ If the battery will not hold a charge, replace the battery. Do NOT replace the battery unless it can't
be charged or a leak and/or physical damage is present.
2. Connect the Tech 2 to the vehicle and the TIS terminal.
3. Turn the ignition to the ON position with the engine OFF.
4. After all warning chimes inside the vehicle have stopped, turn on the Tech 2.
5. On the TIS terminal go into SPS Programming.
6. Select Pass Thru programming.
7. Follow instruction on the TIS terminal. When you get to the Supported Controlers screen.
7.1. Scroll down in the top box and select BCM (Body Control Module).
7.2. In the lower box select Normal.
7.3. Select Next.
Important:
Vehicles without the Driver Information Center (DIC) and power door locks/windows will have two
calibrations from which to choose. A selection is required before you can select NEXT. Select
calibration 25814828. Do not select calibration 25788372.
8. Select NEXT when the calibrations screen displays.
9. Follow on-screen prompts until programming is completed.
10. When programming is complete.
10.1. Turn off Tech2(R).
10.2. Turn the ignition switch to the OFF position.
11. Wait 30 seconds.
12. Turn the ignition switch to the ON position with engine OFF.
13. Turn on the Tech2(R).
14. Go into diagnostics and check for DTC codes.
15. Clear all codes.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C >
Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15958
Important:
Failure to successfully reprogram the BCM may result in the odometer displaying mileage in metric
units instead of English units. To reset the odometer to display mileage in English units, remove the
IPC 10 amp fuse from the underhood BEC. Do not reinstall the fuse for 5 minutes.
16. Proceed to RCDLR Reprogramming.
RCDLR Reprogramming - For All Vehicles
Important:
The Tech 2 diagnostic tool must be updated with version 27.003 or later for reprogramming the
Remote Control Door Lock Receiver (RCDLR).
The calibration numbers required for this service procedure are programmed into control modules
via a Techline Tech 2(R) scan tool and the Techline Information System (TIS) terminal with the
calibration update. Use TIS 2 Web version 10 for 2006 (available on 10/01/06) and on TIS DVD
version 10/2006 or later that was mailed to dealers on October 18, 2006. If you cannot access the
calibration, call the Techline Customer Support Center.
Notice:
Before reprogramming, please check the battery condition to prevent a reprogramming error of any
of the modules due to battery discharge. Battery voltage must be between 12 and 16 volts during
reprogramming. If the vehicle battery is not fully charged, use jumper cables from an additional
battery. Be sure to turn off or disable any system that may put a load on the battery, such as
automatic headlamps, daytime running lights, interior lights, heating, ventilation, and air
conditioning (HVAC) system, radio, engine cooling fan, etc. A programming failure or control
module damage may occur if battery voltage guidelines are not observed.
The ignition switch must be in the proper position. The Tech 2(R) prompts you to turn ON the
ignition, with the engine OFF. DO NOT change the position of the ignition switch during the
programming procedure, unless instructed to do so.
Make certain all tools connections are secure, including the following components and circuits:
^ The RS-232 communication cable port
^ The connection at the data link connector (DLC)
^ The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or control module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure
that all control module and DLC connections are secure and the TIS terminal operating software is
up to date.
Tech 2 Pass-Thru Method for Remote Control Door Lock Receiver (RCDLR)
Important:
The Copy and Paste procedure in Step 7 does not apply to 2006 Lucerne vehicles. Please refer to
the appropriate Tire Pressure Monitor reset procedure in SI.
1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a
charge during programming. Use an additional jump battery if necessary.
2. Turn on the Tech2(R).
3. Build the vehicle using the Tech 2(R).
4. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote Control
Door Lock Receiver / Tire Information.
5. Write down all four Pressure Sensor IDs on a sheet of paper.
6. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
Important:
If "Replace Module Per Service Manual" message appears on the Tech 2 during this procedure,
ignore the message and press the "Exit" key on the Tech 2 and proceed to the next step. Do NOT
replace the module.
7. Run the Copy and Paste TPM Information Procedure (FO: Step 1). Follow the on-screen
instructions: Turn the ignition to the ON position with the
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C >
Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15959
engine OFF.
8. Turn off the Tech 2.
9. Turn on the Tech2.
10. Connect the Tech 2 to the vehicle and the TIS terminal.
11. On the TIS terminal go into SPS Programming.
12. Select Pass Thru programming.
13. Follow instruction on the TIS terminal. When you get to the Supported Controllers screen:
13.1. Scroll down in the top box and select RCDLR (Remote Control Door Lock Receiver).
13.2. In the lower box select Normal.
13.3. Select Next.
Important:
Some vehicles will require additional selections in the module field before you can proceed and the
"Next" button is functional.
14. When the Calibration Screen displays, select calibration 25808841 for vehicles that are NOT
equipped with the remote start feature or calibration 25808842 for vehicles that are equipped with
the remote start feature. After selecting a calibration, select Next.
15. Follow the on-screen prompts until programming is completed.
16. When programming is complete:
16.1. Turn off Tech2.
16.2. Turn the ignition switch to the OFF position.
17. Wait 30 seconds~.
18. Turn the ignition switch to the ON position with engine OFF.
19. Turn on the Tech 2.
20. Build the vehicle using the Tech 2.
21. Using the Tech 2, navigate to Vehicle Control Systems / Module Setup / Remote Control Door
Lock Receiver.
22. Run the Copy and Paste TPM Information Procedure (F1: Step 2).
23. Using the Tech 2, navigate to Vehicle Control Systems / Module ID Information / Remote
Control Door Lock Receiver / Tire Information.
24. Verify that the four Pressure Sensor IDs match those that were recorded in Step 5.
25. Go into diagnostics and check for DTC codes.
26. Clear all codes.
Programming Remote Keyless Entry Transmitters (Vehicles in Inventory)
Important:
All of the transmitters that are to be recognized by the remote control door lock receiver (RCDLR)
must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is
made or the RCDLR module has been reprogrammed, all learned transmitters are erased. Up to 8
transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other
vehicles that are in the keyless entry program mode. This prevents the programming of the
transmitters to the incorrect vehicle.
Program remote keyless entry transmitters.
1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select
Program Key Fobs.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > All Other Service Bulletins for Keyless Entry Module: > 07007C >
Feb > 07 > Campaign - Keyless Entry Transmitter/Module Programming > Page 15960
2. Select Next Available Slot. Follow the on-screen instructions. Simultaneously hold the LOCK and
UNLOCK buttons on the keyless entry transmitter to program.
3. When all the desired transmitters have been programmed, exit the vehicle and operate the
transmitter functions in order to verify correct system operation.
Programming Remote Keyless Entry Transmitters (Sold Vehicles)
Important:
Make several copies of the programming instructions if required.
Some customers may not bring all of their remote keyless entry transmitters to your dealership for
programming. Vehicles are sold with two transmitters. However, customers have the option to
purchase additional transmitters. Ensure that customers understand that all of the transmitters that
are to be recognized by the remote control door lock receiver (RCDLR) must be programmed at
one time in order to function properly. Program the transmitters that the customer provides to you
using a scan tool. Inform the customer that all of the remaining transmitters will not function
properly until they are programmed. Customers must program all of their transmitters, including the
transmitters programmed at your dealership, at one time, using the driver information center (DIC)
programming method. Inform customers to locate and program their transmitters using the
procedure provided. This procedure is also published in the owner manual.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Page 15961
Keyless Entry Module: Diagrams
Remote Function Connector End Views
Remote Control Door Lock Receiver (RCDRL)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Keyless Entry Module >
Component Information > Technical Service Bulletins > Page 15962
Keyless Entry Module: Service and Repair
Remote Control Door Lock Receiver Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Seat Heater Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Seat Heater Control Module: > 10-08-50-001
> Feb > 10 > Electrical - No Crank/Start Discharged or Low Battery
Seat Heater Control Module: Customer Interest Electrical - No Crank/Start Discharged or Low
Battery
TECHNICAL
Bulletin No.: 10-08-50-001
Date: February 15, 2010
Subject: No Crank, No Start, Discharged or Low Battery (Reprogram Heated Seat Module)
Models:
2006-2010 Chevrolet Impala 2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped
with Front Heated Seats
Condition
Some customers may comment on a no crank, no start, discharged or low battery.
Note
This condition may be intermittent, therefore it is important to check if a revised calibration has
been released on TIS2WEB for this concern, even if the condition cannot be duplicated at the
dealer.
Cause
This condition may be caused by the heated seat module discharging the battery. The module
keeps the serial data bus active, which creates a cumulative, continuous amperage draw on the
battery after the vehicle is shut down, until the state of charge reaches three volts.
Correction
Important DO NOT replace the heated seat module or the battery for this concern.
Reprogram the heated seat module with the latest software calibration.
Important Select the correct calibration files for the appropriate vehicle configuration (body style)
and RPO codes.
A revised calibration has been developed to address this condition. Technicians are to reprogram
the heated seat module using the Service Programming System (SPS) with the latest software
available on TIS2WEB. Refer to the Service Programming System (SPS) procedures in SI.
When using a Tech 2(R) or a Multiple Diagnostic Interface (MDI) for reprogramming, ensure that it
is updated with the latest software version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Seat Heater Control Module >
Component Information > Technical Service Bulletins > Customer Interest for Seat Heater Control Module: > 10-08-50-001
> Feb > 10 > Electrical - No Crank/Start Discharged or Low Battery > Page 15971
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Seat Heater Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Heater Control Module: >
10-08-50-001 > Feb > 10 > Electrical - No Crank/Start Discharged or Low Battery
Seat Heater Control Module: All Technical Service Bulletins Electrical - No Crank/Start Discharged
or Low Battery
TECHNICAL
Bulletin No.: 10-08-50-001
Date: February 15, 2010
Subject: No Crank, No Start, Discharged or Low Battery (Reprogram Heated Seat Module)
Models:
2006-2010 Chevrolet Impala 2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped
with Front Heated Seats
Condition
Some customers may comment on a no crank, no start, discharged or low battery.
Note
This condition may be intermittent, therefore it is important to check if a revised calibration has
been released on TIS2WEB for this concern, even if the condition cannot be duplicated at the
dealer.
Cause
This condition may be caused by the heated seat module discharging the battery. The module
keeps the serial data bus active, which creates a cumulative, continuous amperage draw on the
battery after the vehicle is shut down, until the state of charge reaches three volts.
Correction
Important DO NOT replace the heated seat module or the battery for this concern.
Reprogram the heated seat module with the latest software calibration.
Important Select the correct calibration files for the appropriate vehicle configuration (body style)
and RPO codes.
A revised calibration has been developed to address this condition. Technicians are to reprogram
the heated seat module using the Service Programming System (SPS) with the latest software
available on TIS2WEB. Refer to the Service Programming System (SPS) procedures in SI.
When using a Tech 2(R) or a Multiple Diagnostic Interface (MDI) for reprogramming, ensure that it
is updated with the latest software version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Seat Heater Control Module >
Component Information > Technical Service Bulletins > All Technical Service Bulletins for Seat Heater Control Module: >
10-08-50-001 > Feb > 10 > Electrical - No Crank/Start Discharged or Low Battery > Page 15977
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Seat Heater Control Module >
Component Information > Technical Service Bulletins > Page 15978
Passenger Seat (Manual)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Seat Heater Control Module >
Component Information > Technical Service Bulletins > Page 15979
Seat Heater Control Module: Service and Repair
HEATED SEAT CONTROL MODULE REPLACEMENT - FRONT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Seat Heater Control Module >
Component Information > Technical Service Bulletins > Page 15980
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Sunroof / Moonroof Module >
Component Information > Locations
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Sunroof / Moonroof Module >
Component Information > Locations > Page 15984
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Sunroof / Moonroof Module >
Component Information > Service and Repair > Sunroof Control Module Replacement
Sunroof / Moonroof Module: Service and Repair Sunroof Control Module Replacement
SUNROOF CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the headliner.
2. Depress the tab on the side of the control module. 3. With the tab depressed, slide the sunroof
control module toward the sunroof motor. This will release the control module from the sunroof
module.
4. Remove the control module from the sunroof module and disconnect the electrical connector.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Sunroof / Moonroof Module >
Component Information > Service and Repair > Sunroof Control Module Replacement > Page 15987
1. Connect the electrical connector to the sunroof control module.
2. Insert the control module tabs into the sunroof module slots. 3. Slide the sunroof express module
away from the sunroof motor until it is fully engaged. 4. Verify the proper operation of the sunroof
before securing the headliner. 5. Install the headliner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Sunroof / Moonroof Module >
Component Information > Service and Repair > Sunroof Control Module Replacement > Page 15988
Sunroof / Moonroof Module: Service and Repair Sunroof Module Assembly Replacement
SUNROOF MODULE ASSEMBLY REPLACEMENT
REMOVAL PROCEDURE
1. Remove the headliner.
2. Cycle the window panel to the rear. 3. Disconnect the electrical connector from the sunroof
module. 4. Remove the front and rear sunroof drain hoses. 5. With the aid of an assistant, remove
the bolts that secure the sunroof module to the roof. 6. With the aid of an assistant, lower and
remove the sunroof module.
INSTALLATION PROCEDURE
1. With the aid of an assistant, position the new sunroof module into the roof opening. 2. Install the
bolts which secure the sunroof module to the roof and tighten the bolts by hand.
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Chevrolet Workshop Manuals > Body and Frame > Relays and Modules - Body and Frame > Sunroof / Moonroof Module >
Component Information > Service and Repair > Sunroof Control Module Replacement > Page 15989
3. Place a 12 mm (0.47 in) pin into the sunroof module alignment holes.
4. NOTE: Refer to Fastener Notice.
Remove the alignment pins.
Tighten the bolts to 8 N.m (70 lb in).
5. Install the front and rear sunroof drain hoses. 6. Connect the electrical connectors to the sunroof
module. 7. Secure the harness to the sunroof module. 8. Adjust the sunroof window. Refer to
Sunroof Window Height and Opening Fit Adjustment. 9. Verify the proper operation of the sunroof
before installing the headliner.
10. Install the headliner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Luggage Rack > Component
Information > Specifications
Luggage Rack: Specifications
Fastener Tightening Specifications
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Luggage Rack > Component
Information > Specifications > Page 15994
Luggage Rack: Service and Repair
Luggage Carrier Replacement (Equinox)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sun Shade >
Component Information > Service and Repair
Sun Shade: Service and Repair
SUNROOF SUNSHADE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the sunroof window.
2. Remove the screws from the sunroof drip channel. 3. Remove the sunroof drip channel. 4. Slide
the sunshade forward to the closed position. 5. Push the spring retainer clips on the right side of
the sunshade inward to disengage them from the track using an upward lifting motion. 6. Remove
the sunshade from the sunroof module.
INSTALLATION PROCEDURE
1. Engage one side of the sunshade by positioning the spring clips into the track. 2. Push the
spring retainer clips inward on the opposite side of the sunshade to engage them into the track. 3.
Slide the sunshade back and forth to ensure proper operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sun Shade >
Component Information > Service and Repair > Page 15999
4. Slide the sunshade to the half closed position. 5. Install the rear drain drip channel. 6. Install the
sunroof window.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Limit Switch > Component Information > Locations
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Motor > Component Information > Locations
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Motor > Component Information > Locations > Page 16006
Sunroof / Moonroof Motor: Service and Repair
SUNROOF MOTOR/ACTUATOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the headliner. 2. Remove the sunroof window.
3. Disconnect the sunroof motor harness. 4. Remove the screws securing the sunroof actuator to
the sunroof module. 5. Remove the sunroof motor.
INSTALLATION PROCEDURE
1. Manually adjust the track to achieve a distance of (a) 44.5 mm (1.75 in) between the left slide
and track bracket. 2. Manually adjust the track to achieve a distance of (a) 44.5 mm (1.75 in)
between the right slide and track bracket. 3. Install the sunroof motor to the sunroof module.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Motor > Component Information > Locations > Page 16007
4. NOTE: Refer to Fastener Notice.
Install the sunroof motor screws.
Tighten the screws to 5 N.m (44 lb in).
5. Connect the electrical connectors to the sunroof motor. 6. Secure the electrical harness to the
sunroof module. 7. Verify the sunroof operation. 8. Install the sunroof window. 9. Install the
headliner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Switch > Component Information > Locations
Sunroof / Moonroof Switch: Locations
Front Headliner Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Switch > Component Information > Locations > Page 16011
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Switch > Component Information > Locations > Page 16012
Sunroof / Moonroof Switch: Service and Repair
SUNROOF SWITCH REPLACEMENT
REMOVAL PROCEDURE
1. Pull gently at front of reading lamp cover to disengage retaining clips. 2. Rotate cover rearward
until rear attaching hooks are released. 3. Disconnect sunroof switch harness from sunroof switch.
4. Remove sunroof switch fasteners and remove sunroof switch.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Switch > Component Information > Locations > Page 16013
1. Install sunroof switch with fasteners.
Tighten sunroof switch to 2.5 N.m (22 lb in)
2. Connect sunroof switch harness to sunroof switch. 3. Position front reading lamp cover into rear
attaching hooks. 4. Rotate front reading lamp cover into lamp assembly forward, then snap cover
into place. 5. Function sunroof switch to ensure proper operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Track > Component Information > Technical Service Bulletins > Customer Interest for Sunroof / Moonroof Track:
> 09-08-67-001 > Jan > 09 > Body - Rattling Noise From The Sunroof Area
Sunroof / Moonroof Track: Customer Interest Body - Rattling Noise From The Sunroof Area
TECHNICAL
Bulletin No.: 09-08-67-001
Date: January 06, 2009
Subject: Sunroof Frame Tox Rivet Rattle (Install Flocking Tape)
Models: 2006-2009 Buick Lucerne 2003-2007 Cadillac CTS 2005-2009 Cadillac STS 2006-2009
Cadillac DTS 2005-2009 Chevrolet Cobalt, Equinox 2006-2009 Chevrolet HHR 2006-2009 Pontiac
Torrent 2007-2009 Pontiac G5 2004-2007 Saturn VUE
Condition
Some customers may comment of a rattling noise coming from the sunroof or roof area.
Cause
This condition may be caused by the inboard tox rivets, which retain the sunroof center support
beam to the side rails, pulling through the side rail track on one or both sides. This may cause the
support beam to rattle against the side rail track.
Correction
Important:
Once the sunroof module is bolted into the roof ring of the vehicle, the support provided by the
center beam is no longer necessary. DO NOT replace the sunroof frame when the above condition
is noted.
Install flocking tape between the sunroof center support beam and the side rail track.
1. Following SI, lower the front portion of the headliner enough to gain access to the sunroof
module center support beam through the opening in the headliner.
2. Check both sides of the center support beam for loose rivets (2) by inserting a trim stick (1)
between the center support and the side rail track.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Track > Component Information > Technical Service Bulletins > Customer Interest for Sunroof / Moonroof Track:
> 09-08-67-001 > Jan > 09 > Body - Rattling Noise From The Sunroof Area > Page 16022
3. Look for separation of the center support beam and the side rail track.
4. Cut a piece of Kent-Automotive(TM) 30 mm wide BRS Flocking tape, or equivalent,
approximately 152 mm (6 in) in length.
5. Install the flocking tape (1) underneath the center support beam using the trim stick (2) to
separate the center support beam and the side rail track.
6. Ensure that the flocking tape is positioned underneath the complete width of the center support
beam.
7. Reinstall the headliner.
Parts Information
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Track > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Sunroof /
Moonroof Track: > 09-08-67-001 > Jan > 09 > Body - Rattling Noise From The Sunroof Area
Sunroof / Moonroof Track: All Technical Service Bulletins Body - Rattling Noise From The Sunroof
Area
TECHNICAL
Bulletin No.: 09-08-67-001
Date: January 06, 2009
Subject: Sunroof Frame Tox Rivet Rattle (Install Flocking Tape)
Models: 2006-2009 Buick Lucerne 2003-2007 Cadillac CTS 2005-2009 Cadillac STS 2006-2009
Cadillac DTS 2005-2009 Chevrolet Cobalt, Equinox 2006-2009 Chevrolet HHR 2006-2009 Pontiac
Torrent 2007-2009 Pontiac G5 2004-2007 Saturn VUE
Condition
Some customers may comment of a rattling noise coming from the sunroof or roof area.
Cause
This condition may be caused by the inboard tox rivets, which retain the sunroof center support
beam to the side rails, pulling through the side rail track on one or both sides. This may cause the
support beam to rattle against the side rail track.
Correction
Important:
Once the sunroof module is bolted into the roof ring of the vehicle, the support provided by the
center beam is no longer necessary. DO NOT replace the sunroof frame when the above condition
is noted.
Install flocking tape between the sunroof center support beam and the side rail track.
1. Following SI, lower the front portion of the headliner enough to gain access to the sunroof
module center support beam through the opening in the headliner.
2. Check both sides of the center support beam for loose rivets (2) by inserting a trim stick (1)
between the center support and the side rail track.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Track > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Sunroof /
Moonroof Track: > 09-08-67-001 > Jan > 09 > Body - Rattling Noise From The Sunroof Area > Page 16028
3. Look for separation of the center support beam and the side rail track.
4. Cut a piece of Kent-Automotive(TM) 30 mm wide BRS Flocking tape, or equivalent,
approximately 152 mm (6 in) in length.
5. Install the flocking tape (1) underneath the center support beam using the trim stick (2) to
separate the center support beam and the side rail track.
6. Ensure that the flocking tape is positioned underneath the complete width of the center support
beam.
7. Reinstall the headliner.
Parts Information
Warranty Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Windguard > Component Information > Service and Repair
Sunroof / Moonroof Windguard: Service and Repair
SUNROOF AIR DEFLECTOR REPLACEMENT
REMOVAL PROCEDURE
1. Cycle the sunroof window to the rear.
2. Push down on the right front side of the air deflector.
3. Do the following while holding the right side down:
- Push the left front side of the air deflector towards the right side.
- Pull up on the left side until the lower tab clears the roof opening.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Windguard > Component Information > Service and Repair > Page 16032
4. Swing the air deflector in an upward arc, rearward, to disengage air deflector from the hooks on
both sides of the sunroof module. 5. Remove the air deflector from the vehicle.
INSTALLATION PROCEDURE
1. Engage the rear of the air deflector into the side hooks on the sunroof module. 2. Arc the air
deflector in a forward motion.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Windguard > Component Information > Service and Repair > Page 16033
3. Push the right side of the air deflector down into the roof opening.
4. Push the left front side of the air deflector inward and down so the tab clears the roof opening. 5.
Close the sunroof window.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Drain > Component Information > Service and Repair > Procedures
Sunroof / Moonroof Drain: Procedures
SUNROOF DRAIN INSPECTION AND CLEANING
DRAIN HOSE ROUTING
A drain trough encircles the sunroof window panel and water is drained off by the drain hoses
located at each corner of the housing. A drain channel spans across the sunroof module at the rear
of the window panel and directs water into the trough. 1. Ensure the front drain hoses are routed
down the windshield pillars and out the center of the pillar between the door hinges. Ensure the
hoses are
not kinked. Replace any torn or cracked hose.
2. Ensure the rear drain hoses are routed through the rear pillars and out of the rocker panel.
Ensure the rear hoses are properly routed in the metal
roof slot and taped in place. Replace any torn or cracked hoses.
PLUGGED DRAIN HOSE
If a waterleak has occurred inspect for a plugged drain hose at each corner of trough. 1. Open the
sunroof window. 2. To test for blockage, pour a small container of water into the module housing
trough. Inspect each corner to confirm the drain hose is draining
water.
3. Use compressed air, 35 psi or less to blow out any drain hose that is plugged.
CAUTION: Wear safety glasses in order to avoid eye damage.
4. Test the system again. 5. If the hose remains plugged, inspect to see it is properly routed and
does not have a kink. 6. Remove any hoses that remain plugged. 7. Remove the blockage.
1. Push mechanics wire through the hose to remove the obstruction. 2. Use compressed air in
order to blow out any remaining debris.
8. Install the hose.
DISCONNECTED DRAIN HOSE
Inspect the drainage system for disconnected drain hoses. Complete the following steps in order to
obtain partial access to the drain hoses and to inspect for disconnected hoses. 1. Open the sunroof
window panel. 2. Lower the headliner as needed. Refer to Headlining Trim Panel Replacement. 3.
Connect any disconnected hoses. 4. Ensure that the drain hoses are properly routed in the metal
roof slot and secured into place.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Drain > Component Information > Service and Repair > Procedures > Page 16038
Sunroof / Moonroof Drain: Removal and Replacement
Sunroof Housing Front Drain Hose Replacement
SUNROOF HOUSING FRONT DRAIN HOSE REPLACEMENT
REMOVAL PROCEDURE
1. Lower the headliner. Refer to Headlining Trim Panel Replacement.
2. Remove the front drain hose from the sunroof module. 3. Remove tape from the drain hose. 4.
Remove the front drain hose from the retaining clips.
5. Pull the front drain hose out of the front hinge pillar.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Drain > Component Information > Service and Repair > Procedures > Page 16039
1. Push the drain hose into the hole in the front hinge pillar. 2. Connect the front drain hose to the
retaining clips.
3. Connect the drain hose to the sunroof module. 4. Install the headliner.
Sunroof Housing Rear Drain Hose Replacement
SUNROOF HOUSING REAR DRAIN HOSE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the headliner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Drain > Component Information > Service and Repair > Procedures > Page 16040
2. Remove the rear drain hoses from the sunroof module. 3. Remove the tape from the drain hose.
4. Remove the upper portion of the rear drain hoses from the retaining clips. 5. Remove the rear
side trim panels. 6. Remove the lower portion of the rear drain hoses from the retaining clips. 7.
Pull the rear drain hoses up through the side rail.
INSTALLATION PROCEDURE
1. Route the rear drain hose down through the access hole in the side rail.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Drain > Component Information > Service and Repair > Procedures > Page 16041
2. Push the end of the rear drain hoses down into the rear compartment opening. 3. Clip the lower
portion of the rear drain hoses into position. 4. Install the rear side trim panels. 5. Clip the upper
portion of the rear drain hoses into position.
6. Install the rear drain hoses to the sunroof module. 7. Install the headliner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Module > Component Information > Locations
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Module > Component Information > Locations > Page 16045
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Module > Component Information > Service and Repair > Sunroof Control Module Replacement
Sunroof / Moonroof Module: Service and Repair Sunroof Control Module Replacement
SUNROOF CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the headliner.
2. Depress the tab on the side of the control module. 3. With the tab depressed, slide the sunroof
control module toward the sunroof motor. This will release the control module from the sunroof
module.
4. Remove the control module from the sunroof module and disconnect the electrical connector.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Module > Component Information > Service and Repair > Sunroof Control Module Replacement > Page 16048
1. Connect the electrical connector to the sunroof control module.
2. Insert the control module tabs into the sunroof module slots. 3. Slide the sunroof express module
away from the sunroof motor until it is fully engaged. 4. Verify the proper operation of the sunroof
before securing the headliner. 5. Install the headliner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Module > Component Information > Service and Repair > Sunroof Control Module Replacement > Page 16049
Sunroof / Moonroof Module: Service and Repair Sunroof Module Assembly Replacement
SUNROOF MODULE ASSEMBLY REPLACEMENT
REMOVAL PROCEDURE
1. Remove the headliner.
2. Cycle the window panel to the rear. 3. Disconnect the electrical connector from the sunroof
module. 4. Remove the front and rear sunroof drain hoses. 5. With the aid of an assistant, remove
the bolts that secure the sunroof module to the roof. 6. With the aid of an assistant, lower and
remove the sunroof module.
INSTALLATION PROCEDURE
1. With the aid of an assistant, position the new sunroof module into the roof opening. 2. Install the
bolts which secure the sunroof module to the roof and tighten the bolts by hand.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Module > Component Information > Service and Repair > Sunroof Control Module Replacement > Page 16050
3. Place a 12 mm (0.47 in) pin into the sunroof module alignment holes.
4. NOTE: Refer to Fastener Notice.
Remove the alignment pins.
Tighten the bolts to 8 N.m (70 lb in).
5. Install the front and rear sunroof drain hoses. 6. Connect the electrical connectors to the sunroof
module. 7. Secure the harness to the sunroof module. 8. Adjust the sunroof window. Refer to
Sunroof Window Height and Opening Fit Adjustment. 9. Verify the proper operation of the sunroof
before installing the headliner.
10. Install the headliner.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Panel > Component Information > Adjustments
Sunroof / Moonroof Panel: Adjustments
SUNROOF WINDOW HEIGHT AND OPENING FIT ADJUSTMENT
1. IMPORTANT: Correct adjustment cannot be achieved if the sunroof window is closed from vent
position.
Cycle the sunroof window from full open to closed position.
2. Loosen the adjusting screws. 3. Adjust the corners of the glass panel using the following
guidelines:
- Adjust the front of the sunroof window flush to 1 mm (0.04 in) below the top surface of the roof
panel.
- Adjust the rear of the sunroof window flush to 1 mm (0.04 in) above the top surface of the roof
panel.
4. NOTE: Refer to Fastener Notice.
Install the sunroof window adjustment screws.
Tighten the sunroof window adjusting screws to 6 N.m (53 lb in).
5. Cycle sunroof window through all positions. 6. Inspect the sunroof window adjustment. Adjust if
necessary.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Panel > Component Information > Adjustments > Page 16054
Sunroof / Moonroof Panel: Service and Repair
SUNROOF WINDOW REPLACEMENT
REMOVAL PROCEDURE
1. NOTE: In order to prevent damage to the paint, mask the roof panel in front of the sunroof
opening using masking tape and paper.
Cycle the sunroof window to the vent position.
2. Slide the sunshade rearward.
3. Remove the sunroof window screws on both sides.
4. IMPORTANT: If operating the sunroof without the window, refer to Sunroof Air Deflector
Replacement.
Lift the sunroof window from the sunroof opening.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Roof and Associated Components > Sunroof / Moonroof > Sunroof /
Moonroof Panel > Component Information > Adjustments > Page 16055
1. Position the sunroof window into the opening. 2. Install the sunroof window screws. Do not
tighten the screws. 3. Carefully close the sunroof window from the vent position to the full closed
position. 4. Adjust the sunroof window. Refer to Sunroof Window Height and Opening Fit
Adjustment.
5. NOTE: Refer to Fastener Notice.
Tighten the sunroof window screws.
Tighten the screws to 5 N.m (44 lb in).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Rest > Component Information > Service and Repair >
Front Seat Head Restraint Guide Replacement (Fold Flat)
Head Rest: Service and Repair Front Seat Head Restraint Guide Replacement (Fold Flat)
Front Seat Head Restraint Guide Replacement (Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Rest > Component Information > Service and Repair >
Front Seat Head Restraint Guide Replacement (Fold Flat) > Page 16061
Head Rest: Service and Repair Front Seat Head Restraint Guide Replacement (Non-Fold Flat)
Front Seat Head Restraint Guide Replacement (Non-Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Rest > Component Information > Service and Repair >
Front Seat Head Restraint Guide Replacement (Fold Flat) > Page 16062
Head Rest: Service and Repair Front Seat Head Restraint Replacement
Front Seat Head Restraint Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Rest > Component Information > Service and Repair >
Front Seat Head Restraint Guide Replacement (Fold Flat) > Page 16063
Head Rest: Service and Repair Rear Seat Head Restraint Replacement
Rear Seat Head Restraint Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Rest > Component Information > Service and Repair >
Front Seat Head Restraint Guide Replacement (Fold Flat) > Page 16064
Head Rest: Service and Repair Head Restraint Guide Replacement - Rear No. 1
Head Restraint Guide Replacement - Rear No. 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > Recalls: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection
Technical Service Bulletin # 07287A Date: 080528
Campaign - Enhanced Head Impact Protection
CUSTOMER SATISFACTION
Bulletin No.: 07287A
Date: May 28, 2008
Subject: 07287A - Increased Head Impact Protection
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Without Head-Curtain Side Impact Air Bags or Without Sunroof
Canadian Vehicles and Certain Export Vehicles
Supercede:
The Parts Information section in this bulletin has been revised to include the part usage for the gray
absorber kit. Please discard all copies of bulletin 07287, issued May 2008.
THIS PROGRAM IS IN EFFECT UNTIL MAY 31, 2009.
Condition
2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without a head-curtain side
impact air bag or without a sunroof not only meet but exceed government standards for head
impact protection. GM has recently made changes that add to that protection. GM is making similar
changes to vehicles built before this change was implemented.
Correction
To enhance head impact protection dealers are to install an energy-absorbing device on the driver
and passenger side headliner.
Vehicles Involved
Involved are certain 2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without
a head-curtain side impact air bag or without a sunroof and built within the VIN breakpoints shown
above.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using the GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles a listing with involved vehicles containing the complete vehicle
identification number customer name and address information has been prepared and will be
provided through GM DealerWorld Recall Information. Dealers will not have a report available if
they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > Recalls: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 16073
Parts Information
Parts required to complete this recall are to be obtained from General Motors Service and Parts
Operations (GMSPO). Please refer to your "involved vehicles listing before ordering parts. Normal
orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation parts
should be ordered on a CSO = Customer Special Order.
Service Procedure
1. Remove the door weather strip.
Notice:
To avoid damaging the headliner and to ensure the headliner tab hole is cut in the correct location,
it is essential to carefully align the template cross hair (1) with the edge of the headliner and the
edge of the A-pillar trim. Use an X-Acto knife or equivalent utility knife to cut the tab hole in the
headliner.
Important:
There is a driver's side and a passenger's side template. The driver's side template is marked "L"
left side, and the passenger's side template is marked "R" right side.
2. Align the template cross hair (1) with the edge of the A-pillar trim and edge of the headliner.
3. Mark the outline for the tab hole using an ink pen.
4. Cut the tab hole using a utility knife.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > Recalls: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 16074
5. Insert the tab of the headliner trim piece into the tab hole.
6. Insert the A-pillar edge of the headliner trim piece (1) under the A-pillar trim (2).
7. Place a piece of Scotch(R) tape (or equivalent transparent tape) along the edge of the headliner
where the U-channel will contact the headliner
8. Push the U-channel edge of the headliner trim piece over the top of the headliner edge.
9. Install the weather strip.
10. Examine the fit of the headliner trim piece to the headliner. Remove or reduce any gap between
the headliner and headliner trim piece by applying pressure to the headliner molding piece if
required.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > Recalls: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 16075
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
Submit a Product Recall Claim with the information shown above.
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers regardless of
mileage, age of vehicle, or ownership, through May 31, 2009.
Customers who have recently purchased vehicles sold from your vehicle inventory and for which
there is no customer information indicated on the dealer listing are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory or is in your
dealership for service through May 31, 2009 you must take the steps necessary to be sure the
recall correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > Recalls: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 16076
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > By Symptom: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection
Technical Service Bulletin # 07287A Date: 080528
Campaign - Enhanced Head Impact Protection
CUSTOMER SATISFACTION
Bulletin No.: 07287A
Date: May 28, 2008
Subject: 07287A - Increased Head Impact Protection
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Without Head-Curtain Side Impact Air Bags or Without Sunroof
Canadian Vehicles and Certain Export Vehicles
Supercede:
The Parts Information section in this bulletin has been revised to include the part usage for the gray
absorber kit. Please discard all copies of bulletin 07287, issued May 2008.
THIS PROGRAM IS IN EFFECT UNTIL MAY 31, 2009.
Condition
2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without a head-curtain side
impact air bag or without a sunroof not only meet but exceed government standards for head
impact protection. GM has recently made changes that add to that protection. GM is making similar
changes to vehicles built before this change was implemented.
Correction
To enhance head impact protection dealers are to install an energy-absorbing device on the driver
and passenger side headliner.
Vehicles Involved
Involved are certain 2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without
a head-curtain side impact air bag or without a sunroof and built within the VIN breakpoints shown
above.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using the GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles a listing with involved vehicles containing the complete vehicle
identification number customer name and address information has been prepared and will be
provided through GM DealerWorld Recall Information. Dealers will not have a report available if
they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > By Symptom: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 16082
Parts Information
Parts required to complete this recall are to be obtained from General Motors Service and Parts
Operations (GMSPO). Please refer to your "involved vehicles listing before ordering parts. Normal
orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation parts
should be ordered on a CSO = Customer Special Order.
Service Procedure
1. Remove the door weather strip.
Notice:
To avoid damaging the headliner and to ensure the headliner tab hole is cut in the correct location,
it is essential to carefully align the template cross hair (1) with the edge of the headliner and the
edge of the A-pillar trim. Use an X-Acto knife or equivalent utility knife to cut the tab hole in the
headliner.
Important:
There is a driver's side and a passenger's side template. The driver's side template is marked "L"
left side, and the passenger's side template is marked "R" right side.
2. Align the template cross hair (1) with the edge of the A-pillar trim and edge of the headliner.
3. Mark the outline for the tab hole using an ink pen.
4. Cut the tab hole using a utility knife.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > By Symptom: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 16083
5. Insert the tab of the headliner trim piece into the tab hole.
6. Insert the A-pillar edge of the headliner trim piece (1) under the A-pillar trim (2).
7. Place a piece of Scotch(R) tape (or equivalent transparent tape) along the edge of the headliner
where the U-channel will contact the headliner
8. Push the U-channel edge of the headliner trim piece over the top of the headliner edge.
9. Install the weather strip.
10. Examine the fit of the headliner trim piece to the headliner. Remove or reduce any gap between
the headliner and headliner trim piece by applying pressure to the headliner molding piece if
required.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > By Symptom: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 16084
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
Submit a Product Recall Claim with the information shown above.
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers regardless of
mileage, age of vehicle, or ownership, through May 31, 2009.
Customers who have recently purchased vehicles sold from your vehicle inventory and for which
there is no customer information indicated on the dealer listing are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory or is in your
dealership for service through May 31, 2009 you must take the steps necessary to be sure the
recall correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > By Symptom: > 07287A > May > 08 > Campaign - Enhanced Head Impact Protection > Page 16085
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > All Technical Service Bulletins for Head Restraint System: > 10-08-50-003A > Mar > 11 > Restraints Driver/Passenger Seat Head Rest Information
Head Restraint System: All Technical Service Bulletins Restraints - Driver/Passenger Seat Head
Rest Information
INFORMATION
Bulletin No.: 10-08-50-003A
Date: March 24, 2011
Subject: Information on Driver or Passenger Seat Head Restraint Concerns with Comfort, Custom
Upholstery or Other Comfort Enhancing Devices
Models:
2012 and Prior GM Passenger Cars and Trucks Equipped with Adjustable Head Restraints
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 10-08-50-003 (Section 08 - Body and Accessories).
Important ON A GM VEHICLE EQUIPPED WITH ADJUSTABLE HEAD RESTRAINTS, USE THE
HEAD RESTRAINT COVERS, FOAM AND OTHER SEAT-RELATED EQUIPMENT AS
RELEASED BY GM FOR THAT VEHICLE. DO NOT ALTER OR REPOSITION THE HEAD
RESTRAINT SYSTEM. ANY ALTERATIONS TO HEAD RESTRAINTS DEFEATS THE INTENDED
DESIGN OF THE SYSTEM. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE
OF SUCH IMPROPER DESIGN ALTERATIONS, INCLUDING ANY WARRANTY REPAIRS
INCURRED.
You may have a customer with a concern that the head restraint is uncomfortable or sits too far
forward. The front driver and passenger seats are equipped with head restraints that have been
designed to help minimize injuries while still providing comfort to the occupants. Each GM vehicle
has its own specifically designed head restraint.
The head restraints should only be used in the vehicle for which they were designed. The head
restraint will not operate to its design intent if the original foam is replaced (1) by non-GM foam or
head restraint, (2) by GM foam or head restraint designed for a different vehicle, (3) by GM foam or
head restraint that has been altered by a trim shop or (4) if any object, such as an aftermarket
comfort enhancing pad or device, is installed.
Never modify the design of the head restraint or remove the head restraint from the vehicle as this
may interfere with the operation of the seating and restraint systems and may prevent proper
positioning of the passenger within the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > All Technical Service Bulletins for Head Restraint System: > 07287A > May > 08 > Campaign Enhanced Head Impact Protection
Technical Service Bulletin # 07287A Date: 080528
Campaign - Enhanced Head Impact Protection
CUSTOMER SATISFACTION
Bulletin No.: 07287A
Date: May 28, 2008
Subject: 07287A - Increased Head Impact Protection
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Without Head-Curtain Side Impact Air Bags or Without Sunroof
Canadian Vehicles and Certain Export Vehicles
Supercede:
The Parts Information section in this bulletin has been revised to include the part usage for the gray
absorber kit. Please discard all copies of bulletin 07287, issued May 2008.
THIS PROGRAM IS IN EFFECT UNTIL MAY 31, 2009.
Condition
2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without a head-curtain side
impact air bag or without a sunroof not only meet but exceed government standards for head
impact protection. GM has recently made changes that add to that protection. GM is making similar
changes to vehicles built before this change was implemented.
Correction
To enhance head impact protection dealers are to install an energy-absorbing device on the driver
and passenger side headliner.
Vehicles Involved
Involved are certain 2007 model year Chevrolet Equinox and Pontiac Torrent vehicles built without
a head-curtain side impact air bag or without a sunroof and built within the VIN breakpoints shown
above.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using the GM Vehicle Inquiry
System (GMVIS). Not all vehicles within the above breakpoints may be involved.
For dealers with involved vehicles a listing with involved vehicles containing the complete vehicle
identification number customer name and address information has been prepared and will be
provided through GM DealerWorld Recall Information. Dealers will not have a report available if
they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this recall is a violation of law in several states/provinces/countries.
Accordingly you are urged to limit the use of this report to the follow-up necessary to complete this
recall.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > All Technical Service Bulletins for Head Restraint System: > 07287A > May > 08 > Campaign Enhanced Head Impact Protection > Page 16095
Parts Information
Parts required to complete this recall are to be obtained from General Motors Service and Parts
Operations (GMSPO). Please refer to your "involved vehicles listing before ordering parts. Normal
orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation parts
should be ordered on a CSO = Customer Special Order.
Service Procedure
1. Remove the door weather strip.
Notice:
To avoid damaging the headliner and to ensure the headliner tab hole is cut in the correct location,
it is essential to carefully align the template cross hair (1) with the edge of the headliner and the
edge of the A-pillar trim. Use an X-Acto knife or equivalent utility knife to cut the tab hole in the
headliner.
Important:
There is a driver's side and a passenger's side template. The driver's side template is marked "L"
left side, and the passenger's side template is marked "R" right side.
2. Align the template cross hair (1) with the edge of the A-pillar trim and edge of the headliner.
3. Mark the outline for the tab hole using an ink pen.
4. Cut the tab hole using a utility knife.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > All Technical Service Bulletins for Head Restraint System: > 07287A > May > 08 > Campaign Enhanced Head Impact Protection > Page 16096
5. Insert the tab of the headliner trim piece into the tab hole.
6. Insert the A-pillar edge of the headliner trim piece (1) under the A-pillar trim (2).
7. Place a piece of Scotch(R) tape (or equivalent transparent tape) along the edge of the headliner
where the U-channel will contact the headliner
8. Push the U-channel edge of the headliner trim piece over the top of the headliner edge.
9. Install the weather strip.
10. Examine the fit of the headliner trim piece to the headliner. Remove or reduce any gap between
the headliner and headliner trim piece by applying pressure to the headliner molding piece if
required.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > All Technical Service Bulletins for Head Restraint System: > 07287A > May > 08 > Campaign Enhanced Head Impact Protection > Page 16097
Courtesy Transportation
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
Claim Information
Submit a Product Recall Claim with the information shown above.
Customer Notification
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Dealer Recall Responsibility
All unsold new vehicles in dealers possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers regardless of
mileage, age of vehicle, or ownership, through May 31, 2009.
Customers who have recently purchased vehicles sold from your vehicle inventory and for which
there is no customer information indicated on the dealer listing are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory or is in your
dealership for service through May 31, 2009 you must take the steps necessary to be sure the
recall correction has been made before selling or releasing the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > All Technical Service Bulletins for Head Restraint System: > 07287A > May > 08 > Campaign Enhanced Head Impact Protection > Page 16098
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Head Restraint System > System Information > Technical
Service Bulletins > All Other Service Bulletins for Head Restraint System: > 10-08-50-003A > Mar > 11 > Restraints Driver/Passenger Seat Head Rest Information
Head Restraint System: All Technical Service Bulletins Restraints - Driver/Passenger Seat Head
Rest Information
INFORMATION
Bulletin No.: 10-08-50-003A
Date: March 24, 2011
Subject: Information on Driver or Passenger Seat Head Restraint Concerns with Comfort, Custom
Upholstery or Other Comfort Enhancing Devices
Models:
2012 and Prior GM Passenger Cars and Trucks Equipped with Adjustable Head Restraints
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 10-08-50-003 (Section 08 - Body and Accessories).
Important ON A GM VEHICLE EQUIPPED WITH ADJUSTABLE HEAD RESTRAINTS, USE THE
HEAD RESTRAINT COVERS, FOAM AND OTHER SEAT-RELATED EQUIPMENT AS
RELEASED BY GM FOR THAT VEHICLE. DO NOT ALTER OR REPOSITION THE HEAD
RESTRAINT SYSTEM. ANY ALTERATIONS TO HEAD RESTRAINTS DEFEATS THE INTENDED
DESIGN OF THE SYSTEM. GM WILL NOT BE LIABLE FOR ANY PROBLEMS CAUSED BY USE
OF SUCH IMPROPER DESIGN ALTERATIONS, INCLUDING ANY WARRANTY REPAIRS
INCURRED.
You may have a customer with a concern that the head restraint is uncomfortable or sits too far
forward. The front driver and passenger seats are equipped with head restraints that have been
designed to help minimize injuries while still providing comfort to the occupants. Each GM vehicle
has its own specifically designed head restraint.
The head restraints should only be used in the vehicle for which they were designed. The head
restraint will not operate to its design intent if the original foam is replaced (1) by non-GM foam or
head restraint, (2) by GM foam or head restraint designed for a different vehicle, (3) by GM foam or
head restraint that has been altered by a trim shop or (4) if any object, such as an aftermarket
comfort enhancing pad or device, is installed.
Never modify the design of the head restraint or remove the head restraint from the vehicle as this
may interfere with the operation of the seating and restraint systems and may prevent proper
positioning of the passenger within the vehicle.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Power Seat Motor > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Power Seat Motor: > 06-08-50-011 > Oct > 06 > Interior - Driver's
Power Seat Inop./Grinding Noise
Power Seat Motor: All Technical Service Bulletins Interior - Driver's Power Seat Inop./Grinding
Noise
Subject: Left Power Seat Inoperative/Grinding Noise (Replace Power Seat Motor) # 06-08-50-011 (10/12/2006)
Models: 2005-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on a grinding noise when moving the driver power seat.
Cause
This cause may be due to the customer pulling on the motor assembly by mistake.
Correction
Replace the power seat motor assembly using the following procedure:
1. Release the seat belt from the seat.
2. Remove the two retaining bolts and move the seat back.
3. Tilt the seat forward to release it from the floor and disconnect the electrical connector.
4. Remove the recliner handle by pulling it off the mechanism.
5. Remove the left side outer seat trim panel and connector from the power seat switch.
6. If the motor works but is noisy proceed to step 8. If the seat motor is inoperative, remove the two
bolts that retain the track to the worm gear as see in the illustration above.
7. Slide the track back to gain access to the four T-20 TORX screws.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Power Seat Motor > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Power Seat Motor: > 06-08-50-011 > Oct > 06 > Interior - Driver's
Power Seat Inop./Grinding Noise > Page 16117
8. Remove the four T-20 TORX screws at the actuators and cables.
9. Remove the lock from the wire harness connector.
10. With a small pick or screwdriver, remove the red wire from cavity C and the black wire from
cavity F. Remove the motor assembly.
11. Install the red wire into cavity C and the black wire into cavity F and install the lock. Install the
motor assembly.
12. Install the motor assembly and tighten the four T-20 TORX screws. If the motor works but is
noisy, proceed to step 13.
Tighten
Tighten the T-20 TORX Screws to 3 Nm (19 lb-in).
13. Slide both tracks back in line with the worm gear and install the two bolts.
Tighten
Tighten the bolts to 17 Nm (13 lb-ft).
14. Install the left side outer seat trim panel and switch connector.
15. Install the recliner handle.
16. Install the seat assembly into vehicle. Connect the electrical connector and install the seat track
bolts.
Tighten
Tighten the seat bolts to 50 Nm (37 lb-ft).
17. Install the seat bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Power Seat Motor > Component Information > Technical
Service Bulletins > All Technical Service Bulletins for Power Seat Motor: > 06-08-50-011 > Oct > 06 > Interior - Driver's
Power Seat Inop./Grinding Noise > Page 16118
18. Verify proper operation of the seat.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Power Seat Motor > Component Information > Technical
Service Bulletins > Customer Interest for Power Seat Motor: > 06-08-50-011 > Oct > 06 > Interior - Driver's Power Seat
Inop./Grinding Noise
Power Seat Motor: Customer Interest Interior - Driver's Power Seat Inop./Grinding Noise
Subject: Left Power Seat Inoperative/Grinding Noise (Replace Power Seat Motor) # 06-08-50-011 (10/12/2006)
Models: 2005-2007 Chevrolet Equinox 2006-2007 Pontiac Torrent
Condition
Some customers may comment on a grinding noise when moving the driver power seat.
Cause
This cause may be due to the customer pulling on the motor assembly by mistake.
Correction
Replace the power seat motor assembly using the following procedure:
1. Release the seat belt from the seat.
2. Remove the two retaining bolts and move the seat back.
3. Tilt the seat forward to release it from the floor and disconnect the electrical connector.
4. Remove the recliner handle by pulling it off the mechanism.
5. Remove the left side outer seat trim panel and connector from the power seat switch.
6. If the motor works but is noisy proceed to step 8. If the seat motor is inoperative, remove the two
bolts that retain the track to the worm gear as see in the illustration above.
7. Slide the track back to gain access to the four T-20 TORX screws.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Power Seat Motor > Component Information > Technical
Service Bulletins > Customer Interest for Power Seat Motor: > 06-08-50-011 > Oct > 06 > Interior - Driver's Power Seat
Inop./Grinding Noise > Page 16124
8. Remove the four T-20 TORX screws at the actuators and cables.
9. Remove the lock from the wire harness connector.
10. With a small pick or screwdriver, remove the red wire from cavity C and the black wire from
cavity F. Remove the motor assembly.
11. Install the red wire into cavity C and the black wire into cavity F and install the lock. Install the
motor assembly.
12. Install the motor assembly and tighten the four T-20 TORX screws. If the motor works but is
noisy, proceed to step 13.
Tighten
Tighten the T-20 TORX Screws to 3 Nm (19 lb-in).
13. Slide both tracks back in line with the worm gear and install the two bolts.
Tighten
Tighten the bolts to 17 Nm (13 lb-ft).
14. Install the left side outer seat trim panel and switch connector.
15. Install the recliner handle.
16. Install the seat assembly into vehicle. Connect the electrical connector and install the seat track
bolts.
Tighten
Tighten the seat bolts to 50 Nm (37 lb-ft).
17. Install the seat bolt.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Power Seat Motor > Component Information > Technical
Service Bulletins > Customer Interest for Power Seat Motor: > 06-08-50-011 > Oct > 06 > Interior - Driver's Power Seat
Inop./Grinding Noise > Page 16125
18. Verify proper operation of the seat.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Power Seat Motor > Component Information > Technical
Service Bulletins > Page 16126
Driver Seat
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Power Seat Switch > Component Information > Locations
Driver Seat
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Power Seat Switch > Component Information > Service and
Repair > Switch Replacement
Power Seat Switch: Service and Repair Switch Replacement
SEAT SWITCH REPLACEMENT - POWER
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Power Seat Switch > Component Information > Service and
Repair > Switch Replacement > Page 16132
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Power Seat Switch > Component Information > Service and
Repair > Switch Replacement > Page 16133
Power Seat Switch: Service and Repair Knob Replacement - Power Seat Switch - Seat Cushion
KNOB REPLACEMENT - POWER SEAT SWITCH - SEAT CUSHION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat)
Seat Back: Service and Repair Front Seat Back Cover and Cushion Pad Replacement (Fold Flat)
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16138
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16139
Seat Back: Service and Repair Front Seat Back Cover and Cushion Pad Replacement (Non-Fold
Flat)
Front Seat Back Cover and Cushion Pad Replacement (Non-Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16140
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16141
Seat Back: Service and Repair Front Seat Back Panel Replacement (Fold Flat)
Front Seat Back Panel Replacement (Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16142
Seat Back: Service and Repair Rear Seat Back Cushion Trim Panel Replacement
Rear Seat Back Cushion Trim Panel Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16143
Seat Back: Service and Repair
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat)
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16144
Front Seat Back Cover and Cushion Pad Replacement (Non-Fold Flat)
Front Seat Back Cover and Cushion Pad Replacement (Non-Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16145
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16146
Front Seat Back Panel Replacement (Fold Flat)
Front Seat Back Panel Replacement (Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16147
Rear Seat Back Cushion Trim Panel Replacement
Rear Seat Back Cushion Trim Panel Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16148
Seat Back Latch Release Cable Replacement - Rear
Seat Back Latch Release Cable Replacement - Rear
Removal Procedure
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16149
1. Remove the rear seat. 2. Remove the fastener from the rear seat back latch and pull the latch
out from the seat back assembly.
3. Detach the latch cable from the latch.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16150
4. If you are going to replace the cable, disconnect the latch cable at the seat recliner mechanism.
5. Open the J-strip at the bottom of the seat cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16151
6. Pull the cable out from the seat back assembly.
Installation Procedure
1. If you are replacing the cable, route the cable through the rear seat back.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16152
2. Connect the latch cable to the recliner mechanism.
3. Connect the J-strip at the bottom of the seat cover. 4. Connect the latch cable to the latch
assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16153
Notice: Refer to Fastener Notice.
5. Install the latch to the seat back with a fastener.
Tighten the fastener to 2.5 N.m (22 lb in).
6. Install the rear seat.
Seat Back Recliner Cable Replacement - Front (Fold Flat)
Seat Back Recliner Cable Replacement - Front (Fold Flat)
Removal Procedure
1. Remove the seat from the vehicle. 2. Remove the seat cushion cover/pad assembly.
3. Using a small flat-bladed tool pry the seat recliner cable from the inner recliner cable clip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16154
4. Remove the seat recliner cable from the outer recliner mechanism.
Installation Procedure
1. Install the seat recliner cable mechanism into the outer recliner mechanism. 2. Snap the recliner
cable into the inner recliner mechanism.
3. Remove the slack from the recliner cable by turning the threaded end of the cable in the clip. 4.
Install the seat cushion cover/pad assembly. 5. Install the seat into the vehicle.
Seat Back Recliner Inner Trim Panel Replacement - Front Seat (Fold Flat)
Seat Back Recliner Inner Trim Panel Replacement - Front Seat (Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16155
Seat Back Recliner Mechanism Replacement - Front
Seat Back Recliner Mechanism Replacement - Front
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16156
Seat Back Recliner Handle Replacement - Front
Seat Back Recliner Handle Replacement - Front
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16157
Front Seat Back Frame Replacement (Fold Flat)
Front Seat Back Frame Replacement (Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16158
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16159
Front Seat Back Frame Replacement (Non-Fold Flat)
Front Seat Back Frame Replacement (Non-Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16160
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16161
Rear Seat Back Cushion Cover and Pad Replacement
Rear Seat Back Cushion Cover and Pad Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16162
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16163
Rear Seat Back Cushion Frame Replacement
Rear Seat Back Cushion Frame Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16164
Seat Back Recliner Outer Trim Panel Replacement - Front Seat (Fold Flat)
Seat Back Recliner Outer Trim Panel Replacement - Front Seat (Fold Flat)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16165
Seat Back Recliner Replacement - Rear
Seat Back Recliner Replacement - Rear
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Back > Component Information > Service and Repair >
Front Seat Back Cover and Cushion Pad Replacement (Fold Flat) > Page 16166
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > Customer Interest: > 06-08-50-005D > Jul > 10 > Interior - Seat Cushion Cover Loose
Seat Cover: Customer Interest Interior - Seat Cushion Cover Loose
TECHNICAL
Bulletin No.: 06-08-50-005D
Date: July 23, 2010
Subject: Seat Cushion Cover Loose (Secure J-Strip to Seat Frame With Hog Rings)
Models:
2005-2009 Chevrolet Equinox 2005-2010 Chevrolet Cobalt 2005-2006 Pontiac Pursuit (Canada
Only) 2006-2009 Pontiac Torrent 2007-2010 Pontiac G5 2002-2009 Saturn VUE 2003-2007 Saturn
ION
Supercede: This bulletin is being updated to add the 2010 Cobalt and G5 models. Please discard
Corporate Bulletin Number 06-08-50-005C (Section 08 - Body & Accessories).
Condition
Some customers may comment that the seat cushion cover (cover on the lower part of the seat) is
loose.
Cause
This condition may be caused by the J-strip seat cover retaining feature releasing from the seat
frame.
Correction
1. Remove the seat from the vehicle, if necessary. Refer to Seat Replacement - Front Bucket in SI.
Tip The seats do not have to be removed on 2008-2009 Saturn VUE models. (For 2008-2009
Saturn VUE models, the tray under the passenger seat should be removed prior to performing Step
2.)
2. Reattach the J-strip to the seat frame.
3. Secure the J-strip to the seat frame with hog rings. Snap the hog rings through each end of the
J-strip and around the seat frame. 4. Reinstall the seat to the vehicle. Refer to Seat Replacement Front Bucket in SI.
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > Customer Interest: > 06-08-50-005D > Jul > 10 > Interior - Seat Cushion Cover Loose > Page 16175
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 04-08-50-006D > Sep > 10 > Interior - Seat Cover
Wrinkle/Crease/Burn Info
Seat Cover: All Technical Service Bulletins Interior - Seat Cover Wrinkle/Crease/Burn Info
INFORMATION
Bulletin No.: 04-08-50-006D
Date: September 09, 2010
Subject: Minor Wrinkles/Creases, Discoloration, Cigarette Burns and Customer Induced Cuts and
Stains on Front and Rear Driver and Passenger Seats with Leather, Vinyl or Cloth Seat Covers
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2009 and Prior HUMMER H2 2010 and
Prior HUMMER H3 2009 and Prior Saab 9-7X 2010 and Prior Saturn
Supercede: This bulletin is being revised to add a model year. Please discard Corporate Bulletin
Number 04-08-50-006C (Section 08 - Body and Accessories).
If a customer comes in to your dealership due to certain conditions of the seat covers (splits,
wrinkles, loose stitching, etc.), you must examine the seat cover in order to determine the validity of
the customer claim. Some components from the above listed vehicles have been returned to the
Warranty Parts Center (WPC) and analysis of these parts showed "customer induced damage" or
No Trouble Found (NTF).
The dealer should pay particular attention to the following conditions:
- Cigarette burns
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 04-08-50-006D > Sep > 10 > Interior - Seat Cover
Wrinkle/Crease/Burn Info > Page 16181
- Customer induced cuts (knife cuts, cut by customer tools, etc.)
- Paint stains (customer should have cleaned paint stains while paint was still wet)
- Coffee stains and other removable dirt These should be cleaned as described in the Owner's
Manual under Appearance Care. Also, refer to Corporate Bulletin Number 06-00-89-029A or later.
- Evidence of chemicals used for cleaning, other than those specified in the Owner's Manual
- Other chemical spills
- Minor and normal leather wrinkles as a result of use
- Other defects to the seat cover not detected during the pre-delivery inspection (PDI).
Inform the customer that the above issues were not present when the vehicle was purchased and
cannot be replaced under warranty. The covers, however, may be repaired or replaced at the
customer's expense.
The following conditions are not caused by the customer and should be covered by warranty:
- Split seams
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 04-08-50-006D > Sep > 10 > Interior - Seat Cover
Wrinkle/Crease/Burn Info > Page 16182
- Wear/cracking/peeling
- Discoloration/dye transfer from customer clothing (if discoloration/dye transfer is not removed
after using GM Leather and Vinyl Plastic Cleaner, P/N 88861401 (in Canada, P/N 88861409),
replace the covers.)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 06-08-50-005D > Jul > 10 > Interior - Seat Cushion Cover Loose
Seat Cover: All Technical Service Bulletins Interior - Seat Cushion Cover Loose
TECHNICAL
Bulletin No.: 06-08-50-005D
Date: July 23, 2010
Subject: Seat Cushion Cover Loose (Secure J-Strip to Seat Frame With Hog Rings)
Models:
2005-2009 Chevrolet Equinox 2005-2010 Chevrolet Cobalt 2005-2006 Pontiac Pursuit (Canada
Only) 2006-2009 Pontiac Torrent 2007-2010 Pontiac G5 2002-2009 Saturn VUE 2003-2007 Saturn
ION
Supercede: This bulletin is being updated to add the 2010 Cobalt and G5 models. Please discard
Corporate Bulletin Number 06-08-50-005C (Section 08 - Body & Accessories).
Condition
Some customers may comment that the seat cushion cover (cover on the lower part of the seat) is
loose.
Cause
This condition may be caused by the J-strip seat cover retaining feature releasing from the seat
frame.
Correction
1. Remove the seat from the vehicle, if necessary. Refer to Seat Replacement - Front Bucket in SI.
Tip The seats do not have to be removed on 2008-2009 Saturn VUE models. (For 2008-2009
Saturn VUE models, the tray under the passenger seat should be removed prior to performing Step
2.)
2. Reattach the J-strip to the seat frame.
3. Secure the J-strip to the seat frame with hog rings. Snap the hog rings through each end of the
J-strip and around the seat frame. 4. Reinstall the seat to the vehicle. Refer to Seat Replacement Front Bucket in SI.
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 06-08-50-005D > Jul > 10 > Interior - Seat Cushion Cover Loose
> Page 16187
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 06-00-89-029F > Apr > 10 > Interior - Cleaning Interior Surfaces
of Vehicle
Seat Cover: All Technical Service Bulletins Interior - Cleaning Interior Surfaces of Vehicle
INFORMATION
Bulletin No.: 06-00-89-029F
Date: April 27, 2010
Subject: Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather,
Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability
Models:
2006-2011 GM Passenger Cars and Trucks including Saturn (EXCLUDES Cadillac DTS Platinum
and Escalade Platinum with RPO R9N - Tehama Leather) 2006-2010 HUMMER H2, H3 2006-2009
Saab 9-7X
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 06-00-89-029E (Section 00 - General Information).
To keep the vehicle interior looking the best, it should be cleaned often. It is important to keep the
upholstery from becoming heavily soiled. The vehicle's interior can experience extreme heat, which
can cause stains to set quickly. Lighter color interiors may require more frequent cleaning. Care
should be taken because newspapers and garments may transfer color to the vehicle's interior.
Many of today's interiors are made with new low gloss materials. Permanent damage may result
from using cleaners on ANY surfaces (interior trim, instrument panel, carpet, leather, vinyl and
fabric) for which they are not intended. Using non-approved products can actually set the stain to
the point that nothing can remove it.
Important
Do not use silicone or wax-based products or those containing organic solvents (such as naptha,
alcohol, etc.) to clean your vehicle's interior because they can alter the appearance by increasing
the gloss in a non-uniform manner. The increase in gloss may cause annoying reflections in the
windshield and even make it difficult to see through the windshield under certain conditions.
- Never use a STIFF brush or a brush that has been previously used with a harsh chemical. This
can cause damage to the vehicle's interior surfaces.
- Use only mild, Neutral-pH cleaners. Avoid laundry detergents or dishwashing soaps with
degreasers. Using too much soap will leave residue that leaves streaks and attracts dirt.
Because it is critical to use only mild, neutral-pH cleaners, General Motors has approved the use of
the cleaners and conditioners listed in this bulletin for the cleaning of interiors. These products are
in the neutral-pH range and will maintain the best vehicle interior appearance. These products are
water-based, biodegradable, and do not contain bleach, solvents or harsh chemicals.
Interior trim pieces on new vehicles, as well as service components, arrive with a protective film.
When removing the protective film, adhesive residue may be left on the trim panels/components.
The cleaner (for leather, vinyl, plastic and interior paint) is an effective cleaner in removing
adhesive residue without causing damage to the component.
Important
- If soapy, alkaline cleaning solutions are used on fabrics, and not thoroughly rinsed out, the
residual left in the fabric will attract dirt. Because the recommended cleaners/conditioners are in the
pH neutral range, they won't leave behind soapy residue.
- On heavily stained or difficult to clean fabric/carpet, it is recommended that the entire surface be
treated and cleaned vs. spot cleaning. Refer to Extractor Machine and Concentrate section of this
bulletin for more information.
Effective cleaning steps for hard and/or plastic surfaces:
1. Using a clean towel, apply/spray cleaner - leather, vinyl, plastic, interior paint, directly onto the
towel. 2. Wipe the surface with the towel/cleaner. 3. If necessary, use a soft bristle brush to work
cleaner into the crevasses of the area being cleaned. 4. Wipe off any excess cleaner from the
surface. 5. Using a clean towel, apply/spray the conditioner (leather, vinyl restorer) directly onto the
towel. 6. Wipe the conditioner onto the previously cleaned area to restore the material to it's
original luster.
Important Today's interiors are developed and intended to have a low-gloss appearance. It is
important to use only products which provide a low-gloss finish in order to maintain the interior's
integrity, customer appeal and satisfaction.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 06-00-89-029F > Apr > 10 > Interior - Cleaning Interior Surfaces
of Vehicle > Page 16192
Effective cleaning steps for fabric:
1. Remove any residue by lightly rubbing the surface with a clean towel. 2. Choose the appropriate
stain remover based on the stain type. 3. Spray and lightly brush the area with a clean, soft bristle
brush. 4. Gently blot up the stain. 5. On upholstery/carpet, the use of a fabric protector can help to
reduce or eliminate future staining.
Upholstery and Carpet Stains
When cleaning upholstery and carpet stains ONLY, the following cleaning chart will help you
determine which cleaner/formula works best on a particular stain. The chart lists many of the
common stains. Some complex stains may require the application of both stain removers, one after
the other, to remove both food-based oils and synthetic oils.
A soft bristle brush (P/N 88861425) should be used to safely work the cleaner into the leather grain
or material. This enables the dirt/stain to be completely removed from the material.
Leather Conditioner/Restorer
A Leather Conditioner/Restorer is also available. The restorer is safe for all vinyl and leather. It is a
water-based product and contains essential emollients to restore suppleness, conditions and adds
luster without adding gloss. The restorer will also provide protection against re-staining.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 06-00-89-029F > Apr > 10 > Interior - Cleaning Interior Surfaces
of Vehicle > Page 16193
Dye Transfer: Dye transfer will happen any time a natural fiber like cotton, silk, wool, or suede
comes into contact with leather. The lighter the leather color, the more quickly the dye transfer will
appear. Leather should be cleaned on a regular basis so that the dirt and grime do not adversely
affect the top coat of the leather. After cleaning the leather, it is important to treat the surface with
the restorer.
Extractor Machine and Concentrate
For difficult to clean materials or when cleaning a large area, the best results will be achieved when
using an extractor machine and concentrate. General Motors offers the Ruby Extractor (P/N
627-CC-3000AU) through GM Tools and Equipment 1-800-GM-TOOLS, and has recently released
a concentrate for use with the extractor machine.
Whichever extractor machine is used, it should meet the minimum specifications of the Ruby
Extractor:
Ruby Extractor Specifications:
- Pump PSI: 55
- Water Lift: 85"
- Hose Length: 10 ft
Important The Ruby Extractor also comes with a 6 year Outer Body and 3 year Parts warranty.
Extractor: The Ruby Extractor machine was designed for automotive use and works effectively in
the vehicle's interior. The narrow design of the vacuum head allows detail work in tight areas. The
water pressure pump is reduced so the fabric surface is not wet more than is necessary. The dry
time is greatly reduced due to less water on the fabric surface, the vacuum head making better
contact with the surface and the significant water lift capability of the machine.
Concentrate: The concentrated extraction cleaner is engineered with lower pH levels to help
remove alkaline buildup on fabrics. The concentrate should be mixed according to the instructions
listed on the container. The available concentrate helps to break the stain down and then the stain
is easily removed with less water. The concentrate used in the Ruby Extractor is slightly acidic to
remove soap and alkalinity from the fabric surfaces left behind by using improper, soapy solutions.
Dirt, grease and grime are more easily removed when the proper solution is used during the
extraction process.
Parts Information
Products are available in two sizes; 8 oz / 235 ML and 24 oz / 710 ML bottles.
Available Equipment
Equipment is available by contacting 1-800-GMTOOLS.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 06-00-89-029F > Apr > 10 > Interior - Cleaning Interior Surfaces
of Vehicle > Page 16194
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 00-00-89-027E > Sep > 08 > Interior - Elimination Of Unwanted
Odors
Seat Cover: All Technical Service Bulletins Interior - Elimination Of Unwanted Odors
INFORMATION
Bulletin No.: 00-00-89-027E
Date: September 29, 2008
Subject: Eliminating Unwanted Odors in Vehicles
Models: 2009 and Prior GM Passenger Cars and Trucks (including Saturn) 2009 and Prior
HUMMER H2, H3 Vehicles 2009 and Prior Saab 9-7X
Supercede:
This bulletin is being revised to add model years and refine the instructions. Please discard
Corporate Bulletin Number 00-00-89-027D (Section 00 - General Information).
Vehicle Odor Elimination
General Motors offers a product that may control or eliminate odors in the interior and luggage
compartment areas of GM vehicles. GM Vehicle Care Odor Eliminator is a non-toxic,
biodegradable odor remover. This odorless product has been shown to greatly reduce or remove
objectionable smells of mold and mildew resulting from vehicle water leaks (as well as customer
created odors, i.e. smoke). You may use GM Vehicle Care Odor Eliminator on fabrics, vinyl,
leather, carpet and sound deadening materials. It may also be induced into HVAC modules and
instrument panel ducts (for the control of non-bacterial related odors).
Important:
This product leaves no residual scent and should not be sold as or considered an air freshener.
Product action may result in the permanent elimination of an odor and may be preferable to
customers with allergies who are sensitive to perfumes.
How to Use This Product
GM Vehicle Care Odor Eliminator may be sprayed on in a ready-to-use formula or used in steam
cleaners as an additive with carpet shampoo. This water-based, odorless product is safe for all
vehicle interiors. Do not wet or soak any interior surface that plain water would cause to
deteriorate, as this product will have the same effect. Also avoid letting this product come into
contact with vinegar or any acidic substance. Acid-based products will hamper the effectiveness of,
or render GM Vehicle Care Odor Eliminator inert.
Note:
Complete eight page treatment sheets are enclosed within each case of GM Vehicle Care Odor
Eliminator. These treatment instructions range from simple vehicle odor elimination to full step by
step procedures for odor removal from water leaks. If lost, contact 800-977-4145 to get a
replacement set faxed or e-mailed to your dealership.
Instructions and cautions are printed on the bottle, but additional help is available. If you encounter
a difficult to eliminate or reoccurring odor, you may call 1-800-955-8591 (in Canada,
1-800-977-4145) to obtain additional information and usage suggestions.
Important:
This product may effectively remove odors when directly contacting the odor source. It should be
used in conjunction with diagnostic procedures (in cases such as a water leak) to first eliminate the
root cause of the odor, and then the residual odor to permanently correct the vehicle condition.
Vehicle Waterleak Odor Elimination
STEP ONE:
Confirm that all water leaks have been repaired. Determine what areas of the vehicle were water
soaked or wet. Components with visible mold/mildew staining should be replaced. Isolate the odor
source inside the vehicle. Often an odor can be isolated to an area or component of the vehicle
interior by careful evaluation. Odor evaluation may need to be performed by multiple persons.
Another method of isolating an odor source is to remove and segregate interior trim and
components. Plastic sheeting or drop cloths can be used to confine seats, headliners, etc. to assist
in evaluation and diagnoses. If appropriate the vehicle and interior trim should be evaluated
separately to determine if the odor stays with the vehicle or the interior components. Odors that
stay with the vehicle may be isolated to insulating and sound deadening materials (i.e. water leak
at the windshield or standing water in the front foot well area caused mold/mildew to form on the
bulkhead or kick panel sound deadening pads. If the interior is removed the floor pan and
primed/painted surfaces should be treated with bleach/soap solution, rinsed with clean water and
dried. Interior surfaces should then be treated with GM Vehicle Care Odor Eliminator product
before reinstalling carpet or reassembling.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 00-00-89-027E > Sep > 08 > Interior - Elimination Of Unwanted
Odors > Page 16199
The GM Vehicle Care Odor Eliminator product is an effective odor elimination product when used
properly. It must come into direct contact with the odor source. It should be used in conjunction with
diagnostic procedures to first eliminate the root cause of the odor. Some procedures for use after
odor root cause correction are:
STEP TWO:
^ Use the trigger spray head.
^ Put a drop of dish soap the size of a quarter in the bottom of a bottle.
^ Add 8 oz. of GM Vehicle Care Odor Eliminator (1 cup) to the dish soap and top off the bottle with
tap water.
^ This formula should be used on hard surfaces (dash, interior plastic molding, and floor pan)
STEP THREE:
The third step to neutralizing the vehicle is a light to medium treatment of all carpeting and
upholstered seats with the GM Vehicle Care Odor Eliminator formula and a wide fan spray setting
(at full strength) (i.e.: carpeting on the driver's side requires 4-5 triggers pulls for coverage). The
headliner and trunk should be sprayed next. Lightly brushing the formula into the carpeting and
upholstery is a recommended step for deep odor problems. The dash and all hard surfaces should
be sprayed with dish soap/water mixture. Let stand for 1-2 minutes then wipe off the surface.
STEP FOUR: (vehicle ventilation system treatment)
The ventilation system is generally the last step in the treatment of the vehicle.
a. Spray the GM Vehicle Care Odor Eliminator formula into all dash vents. (1-2 trigger pulls per
vent).
b. Start the vehicle and turn the vehicle fan on high cool (not A/C setting).
c. Spray the formula (10 trigger pulls) into the outside fresh air intake vent (cowl at base of
windshield)
d. Enter the vehicle after 1 minute and wipe off the excess formula spurting out of the dash vents.
e. Smell the air coming from the dash vents. If odors are still present, spray another 5 triggers into
the cowl, wait another minute and smell the results. Once you have obtained a fresh, clean smell
coming from the vents, turn the system to the A/C re-circulation setting. Roll up the windows, spray
3-5 pumps into the right lower IP area and let the vehicle run with the fan set on high for 5-7
minutes.
Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited
is resolved without completing every step, the remaining steps do not need to be performed. If
these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance.
Additional Suggestions to Increase Customer Satisfaction
Here are some additional ideas to benefit your dealership and to generate greater customer
enthusiasm for this product.
^ Keep this product on-hand for both the Service Department and the Used Car lot. Add value to
your used car trades; treat loaner and demo cars during service and at final sale to eliminate
smoke, pet, and other common odors offensive to customers. Make deodorizing a vehicle part of
your normal vehicle detailing service.
^ Consider including GM Vehicle Care Odor Eliminator as a give-away item with new vehicle
purchases. Many dealers give away as "gifts" various cleaning supplies at time of delivery. GM
Odor Eliminator is one of a few products GM offers that has as many uses in the home as in the
vehicle. Customers may find this product can be used for a host of recreational activities
associated with their new vehicle, such as deodorizing a boat they tow, or a camper.
^ GM Odor Eliminator and many of the GM Vehicle Care products offer you the chance to increase
dealership traffic as these superior quality products cannot be purchased in stores. Many
Dealerships have product displays at the parts counter. Consider additional displays in the
Customer Service Lounge, the Showroom and at the Service Desk or Cashier Window. Many
customers who purchase vehicles and receive regular maintenance at your dealership may never
visit the parts counter, and subsequently are not exposed to the variety and value that these
products offer.
Parts Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cover: > 00-00-89-027E > Sep > 08 > Interior - Elimination Of Unwanted
Odors > Page 16200
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Seat Cover: > 04-08-50-006D > Sep > 10 > Interior - Seat Cover
Wrinkle/Crease/Burn Info
Seat Cover: All Technical Service Bulletins Interior - Seat Cover Wrinkle/Crease/Burn Info
INFORMATION
Bulletin No.: 04-08-50-006D
Date: September 09, 2010
Subject: Minor Wrinkles/Creases, Discoloration, Cigarette Burns and Customer Induced Cuts and
Stains on Front and Rear Driver and Passenger Seats with Leather, Vinyl or Cloth Seat Covers
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2009 and Prior HUMMER H2 2010 and
Prior HUMMER H3 2009 and Prior Saab 9-7X 2010 and Prior Saturn
Supercede: This bulletin is being revised to add a model year. Please discard Corporate Bulletin
Number 04-08-50-006C (Section 08 - Body and Accessories).
If a customer comes in to your dealership due to certain conditions of the seat covers (splits,
wrinkles, loose stitching, etc.), you must examine the seat cover in order to determine the validity of
the customer claim. Some components from the above listed vehicles have been returned to the
Warranty Parts Center (WPC) and analysis of these parts showed "customer induced damage" or
No Trouble Found (NTF).
The dealer should pay particular attention to the following conditions:
- Cigarette burns
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Seat Cover: > 04-08-50-006D > Sep > 10 > Interior - Seat Cover
Wrinkle/Crease/Burn Info > Page 16206
- Customer induced cuts (knife cuts, cut by customer tools, etc.)
- Paint stains (customer should have cleaned paint stains while paint was still wet)
- Coffee stains and other removable dirt These should be cleaned as described in the Owner's
Manual under Appearance Care. Also, refer to Corporate Bulletin Number 06-00-89-029A or later.
- Evidence of chemicals used for cleaning, other than those specified in the Owner's Manual
- Other chemical spills
- Minor and normal leather wrinkles as a result of use
- Other defects to the seat cover not detected during the pre-delivery inspection (PDI).
Inform the customer that the above issues were not present when the vehicle was purchased and
cannot be replaced under warranty. The covers, however, may be repaired or replaced at the
customer's expense.
The following conditions are not caused by the customer and should be covered by warranty:
- Split seams
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Seat Cover: > 04-08-50-006D > Sep > 10 > Interior - Seat Cover
Wrinkle/Crease/Burn Info > Page 16207
- Wear/cracking/peeling
- Discoloration/dye transfer from customer clothing (if discoloration/dye transfer is not removed
after using GM Leather and Vinyl Plastic Cleaner, P/N 88861401 (in Canada, P/N 88861409),
replace the covers.)
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Seat Cover: > 06-00-89-029F > Apr > 10 > Interior - Cleaning Interior Surfaces of
Vehicle
Seat Cover: All Technical Service Bulletins Interior - Cleaning Interior Surfaces of Vehicle
INFORMATION
Bulletin No.: 06-00-89-029F
Date: April 27, 2010
Subject: Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather,
Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability
Models:
2006-2011 GM Passenger Cars and Trucks including Saturn (EXCLUDES Cadillac DTS Platinum
and Escalade Platinum with RPO R9N - Tehama Leather) 2006-2010 HUMMER H2, H3 2006-2009
Saab 9-7X
Supercede: This bulletin is being revised to update the model years. Please discard Corporate
Bulletin Number 06-00-89-029E (Section 00 - General Information).
To keep the vehicle interior looking the best, it should be cleaned often. It is important to keep the
upholstery from becoming heavily soiled. The vehicle's interior can experience extreme heat, which
can cause stains to set quickly. Lighter color interiors may require more frequent cleaning. Care
should be taken because newspapers and garments may transfer color to the vehicle's interior.
Many of today's interiors are made with new low gloss materials. Permanent damage may result
from using cleaners on ANY surfaces (interior trim, instrument panel, carpet, leather, vinyl and
fabric) for which they are not intended. Using non-approved products can actually set the stain to
the point that nothing can remove it.
Important
Do not use silicone or wax-based products or those containing organic solvents (such as naptha,
alcohol, etc.) to clean your vehicle's interior because they can alter the appearance by increasing
the gloss in a non-uniform manner. The increase in gloss may cause annoying reflections in the
windshield and even make it difficult to see through the windshield under certain conditions.
- Never use a STIFF brush or a brush that has been previously used with a harsh chemical. This
can cause damage to the vehicle's interior surfaces.
- Use only mild, Neutral-pH cleaners. Avoid laundry detergents or dishwashing soaps with
degreasers. Using too much soap will leave residue that leaves streaks and attracts dirt.
Because it is critical to use only mild, neutral-pH cleaners, General Motors has approved the use of
the cleaners and conditioners listed in this bulletin for the cleaning of interiors. These products are
in the neutral-pH range and will maintain the best vehicle interior appearance. These products are
water-based, biodegradable, and do not contain bleach, solvents or harsh chemicals.
Interior trim pieces on new vehicles, as well as service components, arrive with a protective film.
When removing the protective film, adhesive residue may be left on the trim panels/components.
The cleaner (for leather, vinyl, plastic and interior paint) is an effective cleaner in removing
adhesive residue without causing damage to the component.
Important
- If soapy, alkaline cleaning solutions are used on fabrics, and not thoroughly rinsed out, the
residual left in the fabric will attract dirt. Because the recommended cleaners/conditioners are in the
pH neutral range, they won't leave behind soapy residue.
- On heavily stained or difficult to clean fabric/carpet, it is recommended that the entire surface be
treated and cleaned vs. spot cleaning. Refer to Extractor Machine and Concentrate section of this
bulletin for more information.
Effective cleaning steps for hard and/or plastic surfaces:
1. Using a clean towel, apply/spray cleaner - leather, vinyl, plastic, interior paint, directly onto the
towel. 2. Wipe the surface with the towel/cleaner. 3. If necessary, use a soft bristle brush to work
cleaner into the crevasses of the area being cleaned. 4. Wipe off any excess cleaner from the
surface. 5. Using a clean towel, apply/spray the conditioner (leather, vinyl restorer) directly onto the
towel. 6. Wipe the conditioner onto the previously cleaned area to restore the material to it's
original luster.
Important Today's interiors are developed and intended to have a low-gloss appearance. It is
important to use only products which provide a low-gloss finish in order to maintain the interior's
integrity, customer appeal and satisfaction.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Seat Cover: > 06-00-89-029F > Apr > 10 > Interior - Cleaning Interior Surfaces of
Vehicle > Page 16212
Effective cleaning steps for fabric:
1. Remove any residue by lightly rubbing the surface with a clean towel. 2. Choose the appropriate
stain remover based on the stain type. 3. Spray and lightly brush the area with a clean, soft bristle
brush. 4. Gently blot up the stain. 5. On upholstery/carpet, the use of a fabric protector can help to
reduce or eliminate future staining.
Upholstery and Carpet Stains
When cleaning upholstery and carpet stains ONLY, the following cleaning chart will help you
determine which cleaner/formula works best on a particular stain. The chart lists many of the
common stains. Some complex stains may require the application of both stain removers, one after
the other, to remove both food-based oils and synthetic oils.
A soft bristle brush (P/N 88861425) should be used to safely work the cleaner into the leather grain
or material. This enables the dirt/stain to be completely removed from the material.
Leather Conditioner/Restorer
A Leather Conditioner/Restorer is also available. The restorer is safe for all vinyl and leather. It is a
water-based product and contains essential emollients to restore suppleness, conditions and adds
luster without adding gloss. The restorer will also provide protection against re-staining.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Seat Cover: > 06-00-89-029F > Apr > 10 > Interior - Cleaning Interior Surfaces of
Vehicle > Page 16213
Dye Transfer: Dye transfer will happen any time a natural fiber like cotton, silk, wool, or suede
comes into contact with leather. The lighter the leather color, the more quickly the dye transfer will
appear. Leather should be cleaned on a regular basis so that the dirt and grime do not adversely
affect the top coat of the leather. After cleaning the leather, it is important to treat the surface with
the restorer.
Extractor Machine and Concentrate
For difficult to clean materials or when cleaning a large area, the best results will be achieved when
using an extractor machine and concentrate. General Motors offers the Ruby Extractor (P/N
627-CC-3000AU) through GM Tools and Equipment 1-800-GM-TOOLS, and has recently released
a concentrate for use with the extractor machine.
Whichever extractor machine is used, it should meet the minimum specifications of the Ruby
Extractor:
Ruby Extractor Specifications:
- Pump PSI: 55
- Water Lift: 85"
- Hose Length: 10 ft
Important The Ruby Extractor also comes with a 6 year Outer Body and 3 year Parts warranty.
Extractor: The Ruby Extractor machine was designed for automotive use and works effectively in
the vehicle's interior. The narrow design of the vacuum head allows detail work in tight areas. The
water pressure pump is reduced so the fabric surface is not wet more than is necessary. The dry
time is greatly reduced due to less water on the fabric surface, the vacuum head making better
contact with the surface and the significant water lift capability of the machine.
Concentrate: The concentrated extraction cleaner is engineered with lower pH levels to help
remove alkaline buildup on fabrics. The concentrate should be mixed according to the instructions
listed on the container. The available concentrate helps to break the stain down and then the stain
is easily removed with less water. The concentrate used in the Ruby Extractor is slightly acidic to
remove soap and alkalinity from the fabric surfaces left behind by using improper, soapy solutions.
Dirt, grease and grime are more easily removed when the proper solution is used during the
extraction process.
Parts Information
Products are available in two sizes; 8 oz / 235 ML and 24 oz / 710 ML bottles.
Available Equipment
Equipment is available by contacting 1-800-GMTOOLS.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Seat Cover: > 06-00-89-029F > Apr > 10 > Interior - Cleaning Interior Surfaces of
Vehicle > Page 16214
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Seat Cover: > 00-00-89-027E > Sep > 08 > Interior - Elimination Of Unwanted
Odors
Seat Cover: All Technical Service Bulletins Interior - Elimination Of Unwanted Odors
INFORMATION
Bulletin No.: 00-00-89-027E
Date: September 29, 2008
Subject: Eliminating Unwanted Odors in Vehicles
Models: 2009 and Prior GM Passenger Cars and Trucks (including Saturn) 2009 and Prior
HUMMER H2, H3 Vehicles 2009 and Prior Saab 9-7X
Supercede:
This bulletin is being revised to add model years and refine the instructions. Please discard
Corporate Bulletin Number 00-00-89-027D (Section 00 - General Information).
Vehicle Odor Elimination
General Motors offers a product that may control or eliminate odors in the interior and luggage
compartment areas of GM vehicles. GM Vehicle Care Odor Eliminator is a non-toxic,
biodegradable odor remover. This odorless product has been shown to greatly reduce or remove
objectionable smells of mold and mildew resulting from vehicle water leaks (as well as customer
created odors, i.e. smoke). You may use GM Vehicle Care Odor Eliminator on fabrics, vinyl,
leather, carpet and sound deadening materials. It may also be induced into HVAC modules and
instrument panel ducts (for the control of non-bacterial related odors).
Important:
This product leaves no residual scent and should not be sold as or considered an air freshener.
Product action may result in the permanent elimination of an odor and may be preferable to
customers with allergies who are sensitive to perfumes.
How to Use This Product
GM Vehicle Care Odor Eliminator may be sprayed on in a ready-to-use formula or used in steam
cleaners as an additive with carpet shampoo. This water-based, odorless product is safe for all
vehicle interiors. Do not wet or soak any interior surface that plain water would cause to
deteriorate, as this product will have the same effect. Also avoid letting this product come into
contact with vinegar or any acidic substance. Acid-based products will hamper the effectiveness of,
or render GM Vehicle Care Odor Eliminator inert.
Note:
Complete eight page treatment sheets are enclosed within each case of GM Vehicle Care Odor
Eliminator. These treatment instructions range from simple vehicle odor elimination to full step by
step procedures for odor removal from water leaks. If lost, contact 800-977-4145 to get a
replacement set faxed or e-mailed to your dealership.
Instructions and cautions are printed on the bottle, but additional help is available. If you encounter
a difficult to eliminate or reoccurring odor, you may call 1-800-955-8591 (in Canada,
1-800-977-4145) to obtain additional information and usage suggestions.
Important:
This product may effectively remove odors when directly contacting the odor source. It should be
used in conjunction with diagnostic procedures (in cases such as a water leak) to first eliminate the
root cause of the odor, and then the residual odor to permanently correct the vehicle condition.
Vehicle Waterleak Odor Elimination
STEP ONE:
Confirm that all water leaks have been repaired. Determine what areas of the vehicle were water
soaked or wet. Components with visible mold/mildew staining should be replaced. Isolate the odor
source inside the vehicle. Often an odor can be isolated to an area or component of the vehicle
interior by careful evaluation. Odor evaluation may need to be performed by multiple persons.
Another method of isolating an odor source is to remove and segregate interior trim and
components. Plastic sheeting or drop cloths can be used to confine seats, headliners, etc. to assist
in evaluation and diagnoses. If appropriate the vehicle and interior trim should be evaluated
separately to determine if the odor stays with the vehicle or the interior components. Odors that
stay with the vehicle may be isolated to insulating and sound deadening materials (i.e. water leak
at the windshield or standing water in the front foot well area caused mold/mildew to form on the
bulkhead or kick panel sound deadening pads. If the interior is removed the floor pan and
primed/painted surfaces should be treated with bleach/soap solution, rinsed with clean water and
dried. Interior surfaces should then be treated with GM Vehicle Care Odor Eliminator product
before reinstalling carpet or reassembling.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Seat Cover: > 00-00-89-027E > Sep > 08 > Interior - Elimination Of Unwanted
Odors > Page 16219
The GM Vehicle Care Odor Eliminator product is an effective odor elimination product when used
properly. It must come into direct contact with the odor source. It should be used in conjunction with
diagnostic procedures to first eliminate the root cause of the odor. Some procedures for use after
odor root cause correction are:
STEP TWO:
^ Use the trigger spray head.
^ Put a drop of dish soap the size of a quarter in the bottom of a bottle.
^ Add 8 oz. of GM Vehicle Care Odor Eliminator (1 cup) to the dish soap and top off the bottle with
tap water.
^ This formula should be used on hard surfaces (dash, interior plastic molding, and floor pan)
STEP THREE:
The third step to neutralizing the vehicle is a light to medium treatment of all carpeting and
upholstered seats with the GM Vehicle Care Odor Eliminator formula and a wide fan spray setting
(at full strength) (i.e.: carpeting on the driver's side requires 4-5 triggers pulls for coverage). The
headliner and trunk should be sprayed next. Lightly brushing the formula into the carpeting and
upholstery is a recommended step for deep odor problems. The dash and all hard surfaces should
be sprayed with dish soap/water mixture. Let stand for 1-2 minutes then wipe off the surface.
STEP FOUR: (vehicle ventilation system treatment)
The ventilation system is generally the last step in the treatment of the vehicle.
a. Spray the GM Vehicle Care Odor Eliminator formula into all dash vents. (1-2 trigger pulls per
vent).
b. Start the vehicle and turn the vehicle fan on high cool (not A/C setting).
c. Spray the formula (10 trigger pulls) into the outside fresh air intake vent (cowl at base of
windshield)
d. Enter the vehicle after 1 minute and wipe off the excess formula spurting out of the dash vents.
e. Smell the air coming from the dash vents. If odors are still present, spray another 5 triggers into
the cowl, wait another minute and smell the results. Once you have obtained a fresh, clean smell
coming from the vents, turn the system to the A/C re-circulation setting. Roll up the windows, spray
3-5 pumps into the right lower IP area and let the vehicle run with the fan set on high for 5-7
minutes.
Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited
is resolved without completing every step, the remaining steps do not need to be performed. If
these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance.
Additional Suggestions to Increase Customer Satisfaction
Here are some additional ideas to benefit your dealership and to generate greater customer
enthusiasm for this product.
^ Keep this product on-hand for both the Service Department and the Used Car lot. Add value to
your used car trades; treat loaner and demo cars during service and at final sale to eliminate
smoke, pet, and other common odors offensive to customers. Make deodorizing a vehicle part of
your normal vehicle detailing service.
^ Consider including GM Vehicle Care Odor Eliminator as a give-away item with new vehicle
purchases. Many dealers give away as "gifts" various cleaning supplies at time of delivery. GM
Odor Eliminator is one of a few products GM offers that has as many uses in the home as in the
vehicle. Customers may find this product can be used for a host of recreational activities
associated with their new vehicle, such as deodorizing a boat they tow, or a camper.
^ GM Odor Eliminator and many of the GM Vehicle Care products offer you the chance to increase
dealership traffic as these superior quality products cannot be purchased in stores. Many
Dealerships have product displays at the parts counter. Consider additional displays in the
Customer Service Lounge, the Showroom and at the Service Desk or Cashier Window. Many
customers who purchase vehicles and receive regular maintenance at your dealership may never
visit the parts counter, and subsequently are not exposed to the variety and value that these
products offer.
Parts Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cover > Component Information > Technical Service
Bulletins > All Other Service Bulletins for Seat Cover: > 00-00-89-027E > Sep > 08 > Interior - Elimination Of Unwanted
Odors > Page 16220
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cushion > Component Information > Technical Service
Bulletins > Customer Interest for Seat Cushion: > 06-08-50-005D > Jul > 10 > Interior - Seat Cushion Cover Loose
Seat Cushion: Customer Interest Interior - Seat Cushion Cover Loose
TECHNICAL
Bulletin No.: 06-08-50-005D
Date: July 23, 2010
Subject: Seat Cushion Cover Loose (Secure J-Strip to Seat Frame With Hog Rings)
Models:
2005-2009 Chevrolet Equinox 2005-2010 Chevrolet Cobalt 2005-2006 Pontiac Pursuit (Canada
Only) 2006-2009 Pontiac Torrent 2007-2010 Pontiac G5 2002-2009 Saturn VUE 2003-2007 Saturn
ION
Supercede: This bulletin is being updated to add the 2010 Cobalt and G5 models. Please discard
Corporate Bulletin Number 06-08-50-005C (Section 08 - Body & Accessories).
Condition
Some customers may comment that the seat cushion cover (cover on the lower part of the seat) is
loose.
Cause
This condition may be caused by the J-strip seat cover retaining feature releasing from the seat
frame.
Correction
1. Remove the seat from the vehicle, if necessary. Refer to Seat Replacement - Front Bucket in SI.
Tip The seats do not have to be removed on 2008-2009 Saturn VUE models. (For 2008-2009
Saturn VUE models, the tray under the passenger seat should be removed prior to performing Step
2.)
2. Reattach the J-strip to the seat frame.
3. Secure the J-strip to the seat frame with hog rings. Snap the hog rings through each end of the
J-strip and around the seat frame. 4. Reinstall the seat to the vehicle. Refer to Seat Replacement Front Bucket in SI.
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cushion > Component Information > Technical Service
Bulletins > Customer Interest for Seat Cushion: > 06-08-50-005D > Jul > 10 > Interior - Seat Cushion Cover Loose > Page
16229
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cushion > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cushion: > 06-08-50-005D > Jul > 10 > Interior - Seat Cushion Cover
Loose
Seat Cushion: All Technical Service Bulletins Interior - Seat Cushion Cover Loose
TECHNICAL
Bulletin No.: 06-08-50-005D
Date: July 23, 2010
Subject: Seat Cushion Cover Loose (Secure J-Strip to Seat Frame With Hog Rings)
Models:
2005-2009 Chevrolet Equinox 2005-2010 Chevrolet Cobalt 2005-2006 Pontiac Pursuit (Canada
Only) 2006-2009 Pontiac Torrent 2007-2010 Pontiac G5 2002-2009 Saturn VUE 2003-2007 Saturn
ION
Supercede: This bulletin is being updated to add the 2010 Cobalt and G5 models. Please discard
Corporate Bulletin Number 06-08-50-005C (Section 08 - Body & Accessories).
Condition
Some customers may comment that the seat cushion cover (cover on the lower part of the seat) is
loose.
Cause
This condition may be caused by the J-strip seat cover retaining feature releasing from the seat
frame.
Correction
1. Remove the seat from the vehicle, if necessary. Refer to Seat Replacement - Front Bucket in SI.
Tip The seats do not have to be removed on 2008-2009 Saturn VUE models. (For 2008-2009
Saturn VUE models, the tray under the passenger seat should be removed prior to performing Step
2.)
2. Reattach the J-strip to the seat frame.
3. Secure the J-strip to the seat frame with hog rings. Snap the hog rings through each end of the
J-strip and around the seat frame. 4. Reinstall the seat to the vehicle. Refer to Seat Replacement Front Bucket in SI.
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cushion > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Seat Cushion: > 06-08-50-005D > Jul > 10 > Interior - Seat Cushion Cover
Loose > Page 16235
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cushion > Component Information > Service and Repair >
Front Seat Cushion Frame Replacement
Seat Cushion: Service and Repair Front Seat Cushion Frame Replacement
Front Seat Cushion Frame Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cushion > Component Information > Service and Repair >
Front Seat Cushion Frame Replacement > Page 16238
Seat Cushion: Service and Repair Rear Seat Cushion Cover and Pad Replacement
Rear Seat Cushion Cover and Pad Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cushion > Component Information > Service and Repair >
Front Seat Cushion Frame Replacement > Page 16239
Seat Cushion: Service and Repair Rear Seat Cushion Trim Panel Replacement
Rear Seat Cushion Trim Panel Replacement
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Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Cushion > Component Information > Service and Repair >
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Seat Cushion: Service and Repair Seat Cushion Cover and Pad Replacement - Front
Seat Cushion Cover and Pad Replacement - Front
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Seat Cushion: Service and Repair
Front Seat Cushion Frame Replacement
Front Seat Cushion Frame Replacement
Rear Seat Cushion Cover and Pad Replacement
Rear Seat Cushion Cover and Pad Replacement
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Rear Seat Cushion Trim Panel Replacement
Rear Seat Cushion Trim Panel Replacement
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Seat Cushion Cover and Pad Replacement - Front
Seat Cushion Cover and Pad Replacement - Front
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Rear Seat Cushion Frame Replacement
Rear Seat Cushion Frame Replacement
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Seat Cushion Inner Trim Panel Replacement - Front (Non-Fold Flat)
Seat Cushion Inner Trim Panel Replacement - Front (Non-Fold Flat)
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Seat Cushion Outer Trim Panel Replacement - Front Seat (Fold Flat)
Seat Cushion Outer Trim Panel Replacement - Front Seat (Fold Flat)
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Seat Cushion Outer Trim Panel Replacement - Front Seat (Non-Fold Flat)
Seat Cushion Outer Trim Panel Replacement - Front Seat (Non-Fold Flat)
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Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Fan > Component Information > Diagrams > Diagram
Information and Instructions
Seat Fan: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Seat Fan: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Heated/Cooled Seat Diagram
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Seat Heater: Locations
Instrument Panel
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Driver Seat
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Passenger Seat (Manual)
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Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Seat Heater: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Information and Instructions > Page 16453
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 16454
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 16455
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Information and Instructions > Page 16456
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Information and Instructions > Page 16457
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 16458
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 16459
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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16462
Seat Heater: Description and Operation
HEATED SEATS DESCRIPTION AND OPERATION
The front heated seat system consists of the following components. Left heated seat switch
- Right heated seat switch
- Heated seat module
- Left seat cushion heater element
- Left seat back heater element
- Left seat temperature sensor
- Right seat cushion heater element
- Right seat back heater element
- Right seat temperature sensor
- Climate Control Panel (CCP)
- HTD/SEAT 10 A
POWER AND GROUND
Battery positive voltage is supplied at all times to the heated seat module from the HTD/SEAT fuse
located in the I/P fuse block. This voltage is used by the module to supply power to the seat
heating elements. The module is grounded through the module ground circuit and G301.
HEATED SEAT OPERATION
The driver and passenger heated seats are controlled by a single heated seat module that is
located under the driver seat cushion. Both heated seats are controlled by separate heated seat
switches that are located in the climate control panel (CCP). When a heated seat switch is pressed,
the CCP sends a GMLAN message via the serial data line to the heated seat module indicating the
heated seat command. In response to this signal, the heated seat module then applies battery
positive voltage through the element supply voltage circuit to the appropriate seat heating
elements. The heated seat module then sends a GMLAN message back to the CCP to either
illuminate or turn off the appropriate temperature indicator.
TEMPERATURE REGULATION
When the ignition is turned to the ON position, the heated seats will initialize in the OFF state. With
each activation of the heated seat switch, the heated seat module will cycle the temperature setting
in the following manner: HIGH, LOW, and OFF.
The heated seat system is designed in order to warm the seat cushion and seat back to
approximately 42°C (107.6°F) when in the high heat position, and 37°C (98.6°F) when in the low
heat position. The heated seat module monitors the seat temperature through the temperature
sensor signal circuit and the temperature sensor (thermistor) that is located in the seat cushion.
The temperature sensor is a variable resistor, it's resistance changes as the temperature of the
seat changes. When the temperature sensor resistance indicates to the heated seat module that
the seat has reached the desired temperature, the module opens the ground path of the seat
heating elements through the heated seat element control circuit. The module will then cycle the
element control circuit open and closed in order to maintain the desired temperature.
LOAD MANAGEMENT
The load-shed operation is a means of reducing vehicle electrical loads during a low voltage or low
battery state of charge (SOC) condition. During certain load-shed conditions, all heated seat
functions will be disabled. Refer to Electrical Power Management Description and Operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater > Component Information > Testing and Inspection
> Initial Inspection and Diagnostic Overview
Seat Heater: Initial Inspection and Diagnostic Overview
DIAGNOSTIC STARTING POINT - SEATS
Always begin the diagnosis by reviewing the system Description and Operation. Reviewing the
Description and Operation will help you determine the correct symptom diagnostic procedure when
a malfunction exists. Reviewing the Description and Operation will also help you determine if the
condition described by the customer is normal operation.
Begin diagnosis with the Diagnostic System Check - Vehicle. The Diagnostic System Check will
provide the following information:
- The identification of the control modules which command the system
- The ability of the control modules to communicate through the serial data circuit
- The identification of any stored diagnostic trouble codes and their status See: Testing and
Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check - Vehicle
The use of the Diagnostic System Check will identify the correct procedure for diagnosing the
system and where the procedure is located.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater > Component Information > Testing and Inspection
> Initial Inspection and Diagnostic Overview > Page 16465
Seat Heater: Symptom Related Diagnostic Procedures
HEATED SEAT INOPERATIVE
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category See: Testing
and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check - Vehicle.
CIRCUIT/SYSTEM DESCRIPTION
The driver and front passenger heated seats are controlled by separate heated seat switches. Both
switches are located in the climate control panel (CCP). When a heated seat switch is pressed, the
CCP sends a GMLAN message via the serial data line to the heated seat module indicating the
heated seat request. In response to this signal, the heated seat module activates the heated seat
by applying battery voltage to the seat heating elements. The heated seat module then sends a
GMLAN message back to the CCP commanding it to illuminate the appropriate seat temperature
indicator.
CIRCUIT/SYSTEM TESTING
Ignition ON, use a scan tool to observe the appropriate Heated Seat Switch parameter while
pressing the heated seat switch. The reading should change between Idle and Pressed. If not, replace the HVAC control module.
- If the parameter displays Pressed, replace the heated seat module.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure See:
Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic
Trouble Code Tests and Associated Procedures/Verification Tests and Procedures. Control Module
References for HVAC and heated seat control module replacement, setup, and programming See:
Testing and Inspection/Programming and Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater > Component Information > Testing and Inspection
> Initial Inspection and Diagnostic Overview > Page 16466
Seat Heater: Scan Tool Testing and Procedures
Heated Seat Module
HVAC Control Module
Scan Tool Data Definitions
SCAN TOOL DATA DEFINITIONS
Base Model Part Number: The scan tool displays the 8 digit hardware part number of the module.
Calibration Part Number: The scan tool displays the 8 digit part number of the calibration
incorporated into the module.
Driver Seat Cushion Heat Status: The scan tool displays Inactive/Active. When the heated seat is
on, the scan tool will display the status of the heated seat as Active.
Driver Seat HVC Level: The scan tool displays High/Low. When the driver heated seat switch is
pressed once, the scan tool will display High indicating the high temperature setting. When the
switch is pressed a second time, Low will be displayed indicating the low temperature setting.
Driver Seat HVC Mode: The scan tool displays Off/Back & Cushion. When the heated seat is
enabled, the scan tool parameter will display the seat heat mode status as Back & Cushion.
Driver Heated Seat Sw. - CCP: The scan tool displays Inactive/Active. When the driver heated seat
switch is pressed, the scan tool will momentarily display the switch input of the climate control
panel as Active.
End Model Part Number: Before the module has been serviced or replaced, the scan tool displays
the module production part number. Then, once the module has been replaced, the scan tool will
display the new serviced part number.
Julian Date of Build: The scan tool displays a 3-digit number. This number is the day of the year
that the module was built.
Passenger Seat Cushion Heat Status: The scan tool displays Inactive/Active. When the heated
seat is on, the scan tool will display the status of the heated seat as Active.
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> Initial Inspection and Diagnostic Overview > Page 16467
Passenger Seat HVC Level: The scan tool displays High/Low. When the passenger heated seat
switch is pressed once, the scan tool will display High indicating the high temperature setting.
When the switch is pressed a second time, Low will be displayed indicating the low temperature
setting.
Passenger Seat HVC Mode: The scan tool displays Off/Back & Cushion. When the heated seat is
enabled, the scan tool parameter will display the seat heat mode status as Back & Cushion.
Pass. Heated Seat Sw. - CCP: The scan tool displays Inactive/Active. When the passenger heated
seat switch is pressed, the scan tool will momentarily display the heated seat switch input of the
climate control panel as Active.
Software Part Number: The scan tool displays the 8-digit part number of the software incorporated
into the module.
Year Module Built: The scan tool displays a 4-digit number. This number represents the year the
module was built.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater > Component Information > Service and Repair >
Seat Cushion Heater Element Replacement - Front (With Passenger Presence System)
Seat Heater: Service and Repair Seat Cushion Heater Element Replacement - Front (With
Passenger Presence System)
SEAT CUSHION HEATER ELEMENT REPLACEMENT - FRONT (WITH PASSENGER
PRESENCE SYSTEM)
REMOVAL PROCEDURE
1. Remove the front seat from the vehicle. 2. Place the seat on a clean work bench. 3. Remove the
seat cushion cover and pad. 4. Do not remove the original heater element from the seat foam,
damage could occur to the inflatable restraint passenger presence system (PPS) or
foam pad. If this is the second repair, separate and remove the service heater element from the
original element. No more than two heater elements can be stacked on top of the PPS at one time.
5. Cut the wiring harness off the old heater element flush to the element.
INSTALLATION PROCEDURE
1. Peel off the self-stick tape from the back of the heater element.
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2. Position the heater element over the seat foam pad and align the tabs and holes of the heater
element to the seat foam. Press firmly to engage the
adhesive.
3. Route the heating element wiring harness under the seat pad and connect the harness to the
heater module. Secure the wire with tie straps. 4. Install the seat cushion cover and pad. 5. Install
the front seat to the vehicle.
6. IMPORTANT: Perform the passenger presence system preload test procedure when performing
any repairs to the passenger seat.
Preload test the inflatable restraint passenger presence system for the front passenger seat. Refer
to Control Module References. See: Testing and Inspection/Programming and Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater > Component Information > Service and Repair >
Seat Cushion Heater Element Replacement - Front (With Passenger Presence System) > Page 16471
Seat Heater: Service and Repair Seat Back Heater Element Replacement - Front (Fold Flat)
SEAT BACK HEATER ELEMENT REPLACEMENT - FRONT (FOLD FLAT)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater > Component Information > Service and Repair >
Seat Cushion Heater Element Replacement - Front (With Passenger Presence System) > Page 16472
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater > Component Information > Service and Repair >
Seat Cushion Heater Element Replacement - Front (With Passenger Presence System) > Page 16473
Seat Heater: Service and Repair Seat Back Heater Element Replacement - Front (Non-Fold Flat)
SEAT BACK HEATER ELEMENT REPLACEMENT - FRONT (NON-FOLD FLAT)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater > Component Information > Service and Repair >
Seat Cushion Heater Element Replacement - Front (With Passenger Presence System) > Page 16474
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater Control Module > Component Information >
Technical Service Bulletins > Customer Interest for Seat Heater Control Module: > 10-08-50-001 > Feb > 10 > Electrical No Crank/Start Discharged or Low Battery
Seat Heater Control Module: Customer Interest Electrical - No Crank/Start Discharged or Low
Battery
TECHNICAL
Bulletin No.: 10-08-50-001
Date: February 15, 2010
Subject: No Crank, No Start, Discharged or Low Battery (Reprogram Heated Seat Module)
Models:
2006-2010 Chevrolet Impala 2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped
with Front Heated Seats
Condition
Some customers may comment on a no crank, no start, discharged or low battery.
Note
This condition may be intermittent, therefore it is important to check if a revised calibration has
been released on TIS2WEB for this concern, even if the condition cannot be duplicated at the
dealer.
Cause
This condition may be caused by the heated seat module discharging the battery. The module
keeps the serial data bus active, which creates a cumulative, continuous amperage draw on the
battery after the vehicle is shut down, until the state of charge reaches three volts.
Correction
Important DO NOT replace the heated seat module or the battery for this concern.
Reprogram the heated seat module with the latest software calibration.
Important Select the correct calibration files for the appropriate vehicle configuration (body style)
and RPO codes.
A revised calibration has been developed to address this condition. Technicians are to reprogram
the heated seat module using the Service Programming System (SPS) with the latest software
available on TIS2WEB. Refer to the Service Programming System (SPS) procedures in SI.
When using a Tech 2(R) or a Multiple Diagnostic Interface (MDI) for reprogramming, ensure that it
is updated with the latest software version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater Control Module > Component Information >
Technical Service Bulletins > Customer Interest for Seat Heater Control Module: > 10-08-50-001 > Feb > 10 > Electrical No Crank/Start Discharged or Low Battery > Page 16483
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater Control Module > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Heater Control Module: > 10-08-50-001 > Feb > 10 >
Electrical - No Crank/Start Discharged or Low Battery
Seat Heater Control Module: All Technical Service Bulletins Electrical - No Crank/Start Discharged
or Low Battery
TECHNICAL
Bulletin No.: 10-08-50-001
Date: February 15, 2010
Subject: No Crank, No Start, Discharged or Low Battery (Reprogram Heated Seat Module)
Models:
2006-2010 Chevrolet Impala 2007-2009 Chevrolet Equinox 2007-2009 Pontiac Torrent Equipped
with Front Heated Seats
Condition
Some customers may comment on a no crank, no start, discharged or low battery.
Note
This condition may be intermittent, therefore it is important to check if a revised calibration has
been released on TIS2WEB for this concern, even if the condition cannot be duplicated at the
dealer.
Cause
This condition may be caused by the heated seat module discharging the battery. The module
keeps the serial data bus active, which creates a cumulative, continuous amperage draw on the
battery after the vehicle is shut down, until the state of charge reaches three volts.
Correction
Important DO NOT replace the heated seat module or the battery for this concern.
Reprogram the heated seat module with the latest software calibration.
Important Select the correct calibration files for the appropriate vehicle configuration (body style)
and RPO codes.
A revised calibration has been developed to address this condition. Technicians are to reprogram
the heated seat module using the Service Programming System (SPS) with the latest software
available on TIS2WEB. Refer to the Service Programming System (SPS) procedures in SI.
When using a Tech 2(R) or a Multiple Diagnostic Interface (MDI) for reprogramming, ensure that it
is updated with the latest software version.
During programming, the battery voltage must be maintained within the proper range of 12-15
Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming
Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater Control Module > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Seat Heater Control Module: > 10-08-50-001 > Feb > 10 >
Electrical - No Crank/Start Discharged or Low Battery > Page 16489
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater Control Module > Component Information >
Technical Service Bulletins > Page 16490
Passenger Seat (Manual)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater Control Module > Component Information >
Technical Service Bulletins > Page 16491
Seat Heater Control Module: Service and Repair
HEATED SEAT CONTROL MODULE REPLACEMENT - FRONT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater Control Module > Component Information >
Technical Service Bulletins > Page 16492
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Seats > Seat Heater Switch > Component Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Hood Switch / Sensor >
Hood Sensor/Switch (For Alarm) > Component Information > Diagrams
Hood Sensor/Switch (For Alarm): Diagrams
Immobilizer Connector End Views
Hood Ajar Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Pedal Positioning Sensor >
Component Information > Service and Repair > Procedures
Pedal Positioning Sensor: Procedures
BRAKE PEDAL POSITION SENSOR CALIBRATION
CALIBRATION CRITERIA
The brake pedal position sensor (BPPS) receives a low reference signal and a 5-volt reference
signal from the BCM. Whenever the brake pedal is applied, the BPPS applies a variable voltage
signal to the BCM through the stop lamp switch signal circuit. The BPPS calibration must be
performed after the BPPS or body control module (BCM) have been serviced. The calibration
procedure will set BPPS home value. This value is used by the BCM to determine the action of the
driver applying the brake system and to provide this information to the vehicle subsystems via the
communication bus.
CALIBRATION PROCEDURE
- Install a scan tool.
- Turn ON the ignition, with the engine OFF.
- Select Diagnostics.
- Select the year.
- Select the vehicle type.
- Select BCM.
- Select Module Setup.
- Select the BPPS calibration procedure and follow the directions displayed on the screen.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Pedal Positioning Sensor >
Component Information > Service and Repair > Procedures > Page 16505
Pedal Positioning Sensor: Removal and Replacement
BRAKE PEDAL POSITION SENSOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Power Door Lock Switch >
Component Information > Locations
Power Door Lock Switch: Locations
Driver Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Power Door Lock Switch >
Component Information > Locations > Page 16509
Passenger Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Power Door Lock Switch >
Component Information > Locations > Page 16510
Power Door Lock Switch: Service and Repair
POWER DOOR LOCK SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Power Mirror Switch >
Component Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Power Mirror Switch >
Component Information > Locations > Page 16514
Outside Rearview Mirror Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Power Mirror Switch >
Component Information > Locations > Page 16515
Power Mirror Switch: Service and Repair
POWER MIRROR SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Power Seat Switch >
Component Information > Locations
Driver Seat
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Power Seat Switch >
Component Information > Service and Repair > Switch Replacement
Power Seat Switch: Service and Repair Switch Replacement
SEAT SWITCH REPLACEMENT - POWER
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Power Seat Switch >
Component Information > Service and Repair > Switch Replacement > Page 16521
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Power Seat Switch >
Component Information > Service and Repair > Switch Replacement > Page 16522
Power Seat Switch: Service and Repair Knob Replacement - Power Seat Switch - Seat Cushion
KNOB REPLACEMENT - POWER SEAT SWITCH - SEAT CUSHION
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Seat Heater Switch >
Component Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Sunroof / Moonroof Limit
Switch > Component Information > Locations
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Sunroof / Moonroof Switch >
Component Information > Locations
Sunroof / Moonroof Switch: Locations
Front Headliner Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Sunroof / Moonroof Switch >
Component Information > Locations > Page 16532
Right Side Of The Headliner
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Sunroof / Moonroof Switch >
Component Information > Locations > Page 16533
Sunroof / Moonroof Switch: Service and Repair
SUNROOF SWITCH REPLACEMENT
REMOVAL PROCEDURE
1. Pull gently at front of reading lamp cover to disengage retaining clips. 2. Rotate cover rearward
until rear attaching hooks are released. 3. Disconnect sunroof switch harness from sunroof switch.
4. Remove sunroof switch fasteners and remove sunroof switch.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sensors and Switches - Body and Frame > Sunroof / Moonroof Switch >
Component Information > Locations > Page 16534
1. Install sunroof switch with fasteners.
Tighten sunroof switch to 2.5 N.m (22 lb in)
2. Connect sunroof switch harness to sunroof switch. 3. Position front reading lamp cover into rear
attaching hooks. 4. Rotate front reading lamp cover into lamp assembly forward, then snap cover
into place. 5. Function sunroof switch to ensure proper operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Sound Proofing / Insulation > Component Information > Service and
Repair
Sound Proofing / Insulation: Service and Repair
Front Fender Insulator Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Splash Guard > Component Information > Service and Repair
Splash Guard: Service and Repair
Engine Splash Shield Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Spoilers, Flaps, and Air Dams > Spoiler > Component Information >
Service and Repair
Spoiler: Service and Repair
Rear Spoiler Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > Customer Interest for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide
Front Strut / Shock Tower: Customer Interest Body - General Water Leak Diagnostic Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 2
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > Customer Interest for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide > Page 16554
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > Customer Interest for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide > Page 16555
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > Customer Interest for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide > Page 16556
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > Customer Interest for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide > Page 16557
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > Customer Interest for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide > Page 16558
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide
Front Strut / Shock Tower: All Technical Service Bulletins Body - General Water Leak Diagnostic
Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 2
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide > Page 16564
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide > Page 16565
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide > Page 16566
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide > Page 16567
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide > Page 16568
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > Page 16569
Front Strut / Shock Tower: By Symptom
Technical Service Bulletin # 08-08-57-001A Date: 081008
Body - General Water Leak Diagnostic Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > Page 16570
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > Page 16571
Water may be entering between the liftgate and the weatherstrip.
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > Page 16572
Condition 6
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > Page 16573
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > Page 16574
Parts Information
Disclaimer
Technical Service Bulletin # 08-08-57-001A Date: 081008
Body - General Water Leak Diagnostic Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > Page 16575
Condition 2
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > Page 16576
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > Page 16577
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > Page 16578
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Strut / Shock Tower > Front Strut / Shock Tower > System Information >
Technical Service Bulletins > All Technical Service Bulletins for Front Strut / Shock Tower: > Page 16579
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Unibody > Cowl > Component Information > Service and Repair
Cowl: Service and Repair
Plenum Upper Panel Replacement
REMOVAL PROCEDURE
CAUTION: Refer to Approved Equipment for Collision Repair Caution in Service Precautions.
1. Disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling
in SIR. 2. Disconnect the negative battery cable. 3. Remove all related panels and components. 4.
Repair as much of the damage as possible to factory specifications. 5. Note the location and
remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to
Anti-Corrosion Treatment and
Repair.
IMPORTANT: Do not damage any inner panels or reinforcements.
6. Locate and drill out all factory welds. Note the number and location of the welds for installation of
the plenum top panel. 7. Remove the damaged plenum top panel.
INSTALLATION PROCEDURE
IMPORTANT:
If the location of the original plug weld holes can not be determined, space the plug weld holes
every 40 mm (1 1/2 in) apart. Some panels may have structural weld-thru adhesive. It is necessary
to replace the weld-thru adhesive with an additional spot weld between each factory spot weld.
1. Drill 8-mm (5/16-in) plug weld holes in the service part as necessary in the locations noted from
the original panel. 2. Prepare all mating surfaces as necessary. 3. Apply GM-approved Weld-Thru
Coating or equivalent to all mating surfaces. Refer to Anti-Corrosion Treatment and Repair. 4.
Position the plenum top panel to the vehicle using 3-dimensional measuring equipment. Clamp the
plenum top panel into place. 5. Plug weld accordingly. 6. Clean and prepare all welded surfaces. 7.
Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to
Anti-Corrosion Treatment and Repair. 8. Paint the repair area.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Unibody > Cowl > Component Information > Service and Repair > Page
16584
9. Install all related panels and components.
10. Connect the negative battery cable. 11. Enable the SIR system. Refer to SIR Disabling and
Enabling in SIR.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Front Door Weatherstrip > Component Information >
Service and Repair
Front Door Weatherstrip: Service and Repair
Front Door Opening Weatherstrip Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Hood Weatherstrip > Component Information > Service
and Repair
Hood Weatherstrip: Service and Repair
Hood Rear Seal Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Rear Door Weatherstrip > Component Information >
Service and Repair
Rear Door Weatherstrip: Service and Repair
Rear Door Opening Weatherstrip Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide
Trunk / Liftgate Weatherstrip: All Technical Service Bulletins Body - General Water Leak Diagnostic
Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 2
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide > Page 16603
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide > Page 16604
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide > Page 16605
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide > Page 16606
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 >
Body - General Water Leak Diagnostic Guide > Page 16607
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide
Trunk / Liftgate Weatherstrip: Customer Interest Body - General Water Leak Diagnostic Guide
TECHNICAL
Bulletin No.: 08-08-57-001A
Date: October 08, 2008
Subject: General Waterleak Diagnostic Guide
Models: 2005-2009 Chevrolet Equinox LS, LT 2006-2009 Pontiac Torrent LS, LT
Supercede:
This bulletin is being revised to add the 2008 and 2009 model years. Please discard Corporate
Bulletin Number 08-08-57-001 (Section 08 - Body and Accessories).
Condition 1
Water may be entering from the top of the strut tower into the driver side and or passenger side
floor. Pull the carpeting back and check for water entering the vehicle.
Cause
Insufficient body sealer may be the cause.
Correction
Reseal the strut tower. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 2
Water may be entering through the seams in the floor pan on the driver side and/or passenger
side.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide > Page 16613
Cause
Insufficient body sealer may be the cause.
Correction
Remove the carpet and reseal the sheet metal seam.
Condition 3
Water may be entering through the liftgate weatherstrip (between a gap in the sheet metal at the
bottom).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the weatherstrip and reseal the sheet metal.
Condition 4
Water may be entering between the liftgate and the weatherstrip.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide > Page 16614
Cause
The liftgate may not be tight enough to the weatherstrip.
Correction
Adjust the liftgate. Refer to Liftgate Adjustment in SI.
Condition 5
Water may be entering through a gap in the sealer at the rear D-pillar (roof to body).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the roof rack and inspect for any voids in the sealant. Refer to Luggage Carrier
Replacement Equinox or Torrent in SI. Use 3M(TM) Ultrapro Autobody Sealant Clear or equivalent.
Condition 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide > Page 16615
Water in spare tire compartment. Water may be entering through a gap in the sealer behind the
rear fascia (left or right side).
Cause
Insufficient body sealer may be the cause.
Correction
Remove the rear fascia and reseal the sheet metal seam. Refer to Rear Bumper Fascia
Replacement in SI.
Condition 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide > Page 16616
Water in the rear compartment. Water may be entering through a gap in the sheet metal behind the
tail lamps.
Cause
Insufficient body sealer may be the cause.
Correction
Remove the tail lamps. Refer to Tail Lamp Replacement in SI and reseal the sheet metal seam.
Important:
IF A MILDEW ODOR IS PRESENT IN THE VEHICLE, REFER TO PIT4535.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > Customer Interest for Trunk / Liftgate Weatherstrip: > 08-08-57-001A > Oct > 08 > Body General Water Leak Diagnostic Guide > Page 16617
Parts Information
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Body and Frame > Weatherstrip > Trunk / Liftgate Weatherstrip > Component Information >
Technical Service Bulletins > Page 16618
Trunk / Liftgate Weatherstrip: Service and Repair
Liftgate Wedge Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Brake Switch (Cruise Control) > Component Information > Diagrams
Brake Switch (Cruise Control): Diagrams
Cruise Control Connector End Views
Cruise/Brake Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Brake Switch (Cruise Control) > Component Information > Diagrams >
Page 16623
Brake Switch (Cruise Control): Adjustments
Cruise Release Switch Adjustment
1. Remove the instrument panel left lower closeout panel.
Notice: Improper cruise control release switch adjustment may cause brake damage such as brake
drag, heat buildup and excessive brake lining wear.
2. Disconnect the cruise brake switch harness connector. 3. Rotate the cruise brake switch
counterclockwise and remove the cruise brake switch from the switch retainer.
Important: Do not depress the brake pedal assembly during the brake switch installation.
Depressing the brake pedal will cause a brake drag condition.
4. Install the cruise brake switch.
* Position the switch into the retainer with the electrical connector index notch pointing to the 1
o'clock position.
* Slide the switch in the retainer until the plunger is fully depressed into the barrel.
* Rotate the switch clockwise until the travel stop has been reached, approximately 60 degrees.
* Inspect the cruise brake switch to ensure the switch is properly locked into the switch retainer with
the cruise brake switch electrical connector index notch pointing to the 3 o'clock position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Brake Switch (Cruise Control) > Component Information > Diagrams >
Page 16624
5. Connect the cruise brake switch harness connector. 6. Install the instrument panel left lower
closeout panel. 7. Use the scan tool to monitor CRUISE BRAKE SWITCH in the engine control
module (ECM) General Information data table, while depressing
and releasing the brake pedal. Verify the APPLIED and RELEASED states read correctly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Brake Switch (Cruise Control) > Component Information > Diagrams >
Page 16625
Brake Switch (Cruise Control): Service and Repair
Cruise Release Switch Replacement
Removal Procedure
1. Remove the instrument panel left lower closeout panel.
2. Disconnect the cruise brake switch connector.
3. Rotate the cruise brake switch counterclockwise and remove the cruise brake switch from the
switch retainer.
Important: Depressing the brake pedal will allow easier access of the retainer locking tabs.
4. Gently compress the locking tabs on the cruise brake retainer and remove the switch retainer
from the brake pedal assembly.
Installation Procedure
Important: Ensure that the indexing arrow is facing to the right and the ears on the retainer are fully
extended on the back side of the bracket to prevent the retainer from being pushed out.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Brake Switch (Cruise Control) > Component Information > Diagrams >
Page 16626
1. Install the cruise brake switch retainer into the upper hole of the brake pedal assembly with the
retainer arrow pointing in the 3 o'clock position.
Important: Do not depress the brake pedal assembly during the cruise brake switch installation.
Depressing the brake pedal during the cruise brake switch installation will cause a brake drag
condition.
2. Install the cruise brake switch.
* Position the switch into the retainer with the electrical connector index notch pointing to the 1
o'clock position.
* Slide the switch in the retainer until the plunger is fully depressed into the barrel.
* Rotate the switch clockwise until the travel stop has been reached, approximately 60 degrees.
* Inspect the cruise brake switch to ensure the switch is properly locked into the switch retainer with
the cruise brake switch electrical connector index notch pointing to the 3 o'clock position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Brake Switch (Cruise Control) > Component Information > Diagrams >
Page 16627
3. Connect the cruise brake switch harness connector. 4. Install the instrument panel left lower
closeout panel. 5. Use the scan tool to monitor CRUISE BRAKE SWITCH in the engine control
module (ECM) General Information data table, while depressing
and releasing the brake pedal. Verify the APPLIED and RELEASED states read correctly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Sensors and Switches - Cruise Control > Brake Switch (Cruise Control) >
Component Information > Diagrams
Brake Switch (Cruise Control): Diagrams
Cruise Control Connector End Views
Cruise/Brake Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Sensors and Switches - Cruise Control > Brake Switch (Cruise Control) >
Component Information > Diagrams > Page 16632
Brake Switch (Cruise Control): Adjustments
Cruise Release Switch Adjustment
1. Remove the instrument panel left lower closeout panel.
Notice: Improper cruise control release switch adjustment may cause brake damage such as brake
drag, heat buildup and excessive brake lining wear.
2. Disconnect the cruise brake switch harness connector. 3. Rotate the cruise brake switch
counterclockwise and remove the cruise brake switch from the switch retainer.
Important: Do not depress the brake pedal assembly during the brake switch installation.
Depressing the brake pedal will cause a brake drag condition.
4. Install the cruise brake switch.
* Position the switch into the retainer with the electrical connector index notch pointing to the 1
o'clock position.
* Slide the switch in the retainer until the plunger is fully depressed into the barrel.
* Rotate the switch clockwise until the travel stop has been reached, approximately 60 degrees.
* Inspect the cruise brake switch to ensure the switch is properly locked into the switch retainer with
the cruise brake switch electrical connector index notch pointing to the 3 o'clock position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Sensors and Switches - Cruise Control > Brake Switch (Cruise Control) >
Component Information > Diagrams > Page 16633
5. Connect the cruise brake switch harness connector. 6. Install the instrument panel left lower
closeout panel. 7. Use the scan tool to monitor CRUISE BRAKE SWITCH in the engine control
module (ECM) General Information data table, while depressing
and releasing the brake pedal. Verify the APPLIED and RELEASED states read correctly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Sensors and Switches - Cruise Control > Brake Switch (Cruise Control) >
Component Information > Diagrams > Page 16634
Brake Switch (Cruise Control): Service and Repair
Cruise Release Switch Replacement
Removal Procedure
1. Remove the instrument panel left lower closeout panel.
2. Disconnect the cruise brake switch connector.
3. Rotate the cruise brake switch counterclockwise and remove the cruise brake switch from the
switch retainer.
Important: Depressing the brake pedal will allow easier access of the retainer locking tabs.
4. Gently compress the locking tabs on the cruise brake retainer and remove the switch retainer
from the brake pedal assembly.
Installation Procedure
Important: Ensure that the indexing arrow is facing to the right and the ears on the retainer are fully
extended on the back side of the bracket to prevent the retainer from being pushed out.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Sensors and Switches - Cruise Control > Brake Switch (Cruise Control) >
Component Information > Diagrams > Page 16635
1. Install the cruise brake switch retainer into the upper hole of the brake pedal assembly with the
retainer arrow pointing in the 3 o'clock position.
Important: Do not depress the brake pedal assembly during the cruise brake switch installation.
Depressing the brake pedal during the cruise brake switch installation will cause a brake drag
condition.
2. Install the cruise brake switch.
* Position the switch into the retainer with the electrical connector index notch pointing to the 1
o'clock position.
* Slide the switch in the retainer until the plunger is fully depressed into the barrel.
* Rotate the switch clockwise until the travel stop has been reached, approximately 60 degrees.
* Inspect the cruise brake switch to ensure the switch is properly locked into the switch retainer with
the cruise brake switch electrical connector index notch pointing to the 3 o'clock position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Cruise Control > Sensors and Switches - Cruise Control > Brake Switch (Cruise Control) >
Component Information > Diagrams > Page 16636
3. Connect the cruise brake switch harness connector. 4. Install the instrument panel left lower
closeout panel. 5. Use the scan tool to monitor CRUISE BRAKE SWITCH in the engine control
module (ECM) General Information data table, while depressing
and releasing the brake pedal. Verify the APPLIED and RELEASED states read correctly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions
Cigarette Lighter: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16642
Electrical Symbols Part 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16643
Electrical Symbols Part 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16644
Electrical Symbols Part 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16645
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16646
Electrical Symbols Part 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16647
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16648
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16649
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16650
Cigarette Lighter: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16651
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16652
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16653
resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 16701
8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 16727
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 16728
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16729
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information > Diagrams > Diagram Information and Instructions > Page 16730
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16732
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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Information > Diagrams > Diagram Information and Instructions > Page 16733
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Information > Diagrams > Diagram Information and Instructions > Page 16738
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16739
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16740
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Diagram Information and Instructions > Page 16741
Cigar Lighter
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Page 16742
Cigarette Lighter: Service and Repair
CIGAR LIGHTER RECEPTACLE OR 12-VOLT ACCESSORY POWER RECEPTACLE
REPLACEMENT
TOOLS REQUIRED
J 42059 Cigar Lighter Socket Remover
REMOVAL PROCEDURE
1. Remove the auxiliary power outlet fuse from the fuse block. 2. Remove the receptacle: 1. Look
into the receptacle. There are two 3 mm (0.11 in) tab windows 12 mm (0.47 in) from the front of the
receptacle. The J 42059 pushes the
plastic latches from these tab windows and the receptacle can be pulled straight out.
2. Place one side of the "T" portion of the J 42059 into the tab window. The J 42059 will not fit
straight into the receptacle. Angle the J 42059
slightly for insertion into the receptacle.
3. Insert the other side of the "T" into the opposite tab window.You must move the J 42059 handle
toward horizontal to engage the other tab window. 4. Use the J 42059 to pull the receptacle straight
out.
3. If J 42059 tool fails to release the lighter socket from the retainer, perform the following alternate
method: 1. Insert a small grinding tool with a cutoff wheel into the socket. 2. Remove the plastic
latches in the 3 mm (0.11 in) square windows. 3. Use the J 42059 as directed above to remove the
socket.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Cigarette Lighter > Component
Information > Diagrams > Page 16743
1. Route the connector through the retainer. Align the accessory power receptacle retainer to the
slot in the opening. 2. Install the retainer by pressing into place fully seated. 3. Connect the
electrical connector to the receptacle. 4. Align the tabs on the receptacle to the slots in the retainer.
Install the accessory power receptacle by pressing into place until fully seated. 5. Install the
accessory power receptacle fuse.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Compass > Component Information >
Description and Operation
Compass: Description and Operation
Compass Calibration and Magnetic Variance
Compass Calibration
Before calibrating the compass, drive the vehicle to an open area that is magnetically clean or free
of large metallic objects such as high tension power lines or large steel buildings. Verify there are
no magnetized roof antennas, magnets on or hanging from the mirror, or any other magnetized
objects on the inside or outside of the vehicle close to the mirror.
1. Start the engine.
Important: Before calibrating the compass, make sure the mirror has the correct zone number.
Refer to Compass Magnetic Variation Adjustment mentioned below.
2. Press and hold the on/off switch for the compass until the letter "C" or "CAL" is displayed. 3.
Drive the vehicle in circles at a speed of less than 8 km/h (5 mph) until the "C" or "CAL" is replaced
by a proper vehicle heading. The calibration
procedure is now complete.
Compass Magnetic Variation Adjustment
Magnetic variation adjustments are required when the compass displays a constant error in
heading. Variation is the difference between magnetic north and true north due to geographical
location.
World Magnetic Variation Map
1. Locate your current geographic location on the World Magnetic Variation Map. 2. Turn ON the
ignition, with the engine OFF. 3. Press and hold the on/off switch for the compass until a zone
number appears on the compass display. 4. Depress the switch for the compass to select the
desired zone number. 5. Wait 5 seconds. The display will return to a compass heading. The
variance procedure is now complete. 6. Calibrate the compass. Refer to Compass Calibration
mentioned above.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Dashboard / Instrument Panel > Air
Bag(s) Arming and Disarming > System Information > Service and Repair
Air Bag(s) Arming and Disarming: Service and Repair
SIR Disabling and Enabling
SIR component location affects how a vehicle should be serviced. There are parts of the SIR
system installed in various locations around a vehicle. To find the location of the SIR components
refer to SIR Identification Views.
There are several reasons for disabling the SIR system, such as repairs to the SIR system or
servicing a component near or attached to an SIR component. There are several ways to disable
the SIR system depending on what type of service is being performed. The following information
covers the proper procedures for disabling/enabling the SIR system.
SIR Service Precautions
Caution: When performing service on or near the SIR components or the SIR wiring, the SIR
system must be disabled. Failure to observe the correct procedure could cause deployment of the
SIR components. Serious injury can occur. Failure to observe the correct procedure could also
result in unnecessary SIR system repairs.
The inflatable restraint sensing and diagnostic module (SDM) maintains a reserved energy supply.
The reserved energy supply provides deployment power for the air bags if the SDM loses battery
power during a collision. Deployment power is available for as much as 1 minute after
disconnecting the vehicle power. Waiting 1 minute before working on the system after disabling the
SIR system prevents deployment of the air bags from the reserved energy supply.
General Service Instructions
The following are general service instructions which must be followed in order to properly repair the
vehicle and return it to its original integrity:
* Do not expose inflator modules to temperatures above 65°C (150°F).
* Verify the correct replacement part number. Do not substitute a component from a different
vehicle.
* Use only original GM replacement parts available from your authorized GM dealer. Do not use
salvaged parts for repairs to the SIR system.
Discard any of the following components if it has been dropped from a height of 91 cm (3 feet) or
greater:
* Inflatable restraint sensing and diagnostic module (SDM)
* Any Inflatable restraint air bag module
* Inflatable restraint steering wheel module coil
* Any Inflatable restraint sensor
* Inflatable restraint seat belt pretensioners
* Inflatable restraint Passenger Presence System (PPS) module or sensor
Disabling Procedure - Air Bag Fuse
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position.
Important: The SDM may have more than one fused power input. To ensure there is no unwanted
SIR deployment, personal injury, or unnecessary SIR system repairs, remove all fuses supplying
power to the SDM. With all SDM fuses removed and the ignition switch in the ON position, the AIR
BAG warning indicator illuminates. This is normal operation, and does not indicate a SIR system
malfunction.
3. Locate and remove the fuse(s) supplying power to the SDM. 4. Wait 1 minute before working on
the system.
Enabling Procedure - Air Bag Fuse
1. Place the ignition in the OFF position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Dashboard / Instrument Panel > Air
Bag(s) Arming and Disarming > System Information > Service and Repair > Page 16751
2. Install the fuse(s) supplying power to the SDM. 3. Turn the ignition switch to the ON position.
The AIR BAG indicator will flash then turn OFF. 4. Perform the Diagnostic System Check - Vehicle
if the AIR BAG warning indicator does not operate as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Disabling Procedure - Negative Battery Cable
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position. 3. Disconnect the negative battery cable from the battery. 4. Wait 1
minute before working on system.
Enabling Procedure - Negative Battery Cable
1. Place the ignition in the OFF position. 2. Connect the negative battery cable to the battery. 3.
Turn the ignition switch to the ON position. The AIR BAG indicator will flash then turn OFF. 4.
Perform the Diagnostic System Check - Vehicle if the AIR BAG warning indicator does not operate
as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Dimmer Switch > Component
Information > Locations
Dimmer Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Dimmer Switch > Component
Information > Locations > Page 16755
Dimmer Switch: Service and Repair
INSTRUMENT PANEL DIMMER SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Door/Trunk Ajar Indicator/Lamp >
Component Information > Description and Operation
Door/Trunk Ajar Indicator/Lamp: Description and Operation
Door Ajar Indicator Description and Operation
Door Ajar Indicator System Components
The door ajar indicator system consists of the following components:
* The body control module (BCM)
* The instrument panel cluster (IPC)
* The driver information center (DIC)
* The driver door jamb switch
* The passenger door jamb switch
* The left rear door jamb switch
* The right rear door jamb switch
* The liftgate actuator/ajar switch
Driver and Passenger Door Ajar Operation
The body control module (BCM) receives a discrete input from the respective jamb switch to
indicate the status of the door. The BCM then communicates this status to the instrument panel
cluster (IPC) via a class 2 message. The IPC, upon receipt of this class 2 message, will illuminate
the appropriate ajar message in the driver information center (DIC) and also send a class 2
message to the radio to activate the door ajar audible warning when the following conditions are
met:
* The transmission is removed from PARK.
* The vehicle speed is greater then 8.05 km/h (5 mph).
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Driver/Vehicle Information Display >
Component Information > Locations
Driver/Vehicle Information Display: Locations
Displays and Gages Component Views
Instrument Panel
1 - Ambient Light Sensor 2 - Instrument Panel Cluster (IPC) 3 - Driver Information Center (DIC)
Switch 4 - Hazard Switch 5 - Inflatable Restraint Passenger Air Bag ON/OFF Indicator 6 - Rear
Wiper/Washer Switch 7 - Radio 8 - HVAC Control Module 9 - Heated Seat Switches 10 - Power
Window Switch - Main
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Driver/Vehicle Information Display >
Component Information > Locations > Page 16762
11 - Traction Control Switch 12 - Dimmer Switch 13 - Outside Rear View Mirror Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Driver/Vehicle Information Display >
Component Information > Locations > Page 16763
Driver/Vehicle Information Display: Diagrams
Displays and Gages Connector End Views
Driver Information Center (DIC) Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Driver/Vehicle Information Display >
Component Information > Locations > Page 16764
Driver/Vehicle Information Display: Service and Repair
Driver Information Display Switch Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Fuel Gauge > Component Information
> Specifications
Fuel Gauge: Specifications
Fuel Level Specifications
The information in this table is intended for use with the J 33431-C Signal Generator and
Instrument Panel Tester. The fuel level sensor values represent the test values to be used on the
Signal Generator to drive the fuel gage display to the indicated positions. Vehicles that require
more than one fuel level sensor calculate gage position from many possible resistance
combinations of fuel levels between the two tanks. Therefore, the values in the table may not
correlate directly to readings taken from the vehicle primary or secondary sending units.
The values in the table are approximate values based on information obtained from properly
operating vehicles. Actual results may vary slightly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Instrument Cluster / Carrier > Air
Bag(s) Arming and Disarming > System Information > Service and Repair
Air Bag(s) Arming and Disarming: Service and Repair
SIR Disabling and Enabling
SIR component location affects how a vehicle should be serviced. There are parts of the SIR
system installed in various locations around a vehicle. To find the location of the SIR components
refer to SIR Identification Views.
There are several reasons for disabling the SIR system, such as repairs to the SIR system or
servicing a component near or attached to an SIR component. There are several ways to disable
the SIR system depending on what type of service is being performed. The following information
covers the proper procedures for disabling/enabling the SIR system.
SIR Service Precautions
Caution: When performing service on or near the SIR components or the SIR wiring, the SIR
system must be disabled. Failure to observe the correct procedure could cause deployment of the
SIR components. Serious injury can occur. Failure to observe the correct procedure could also
result in unnecessary SIR system repairs.
The inflatable restraint sensing and diagnostic module (SDM) maintains a reserved energy supply.
The reserved energy supply provides deployment power for the air bags if the SDM loses battery
power during a collision. Deployment power is available for as much as 1 minute after
disconnecting the vehicle power. Waiting 1 minute before working on the system after disabling the
SIR system prevents deployment of the air bags from the reserved energy supply.
General Service Instructions
The following are general service instructions which must be followed in order to properly repair the
vehicle and return it to its original integrity:
* Do not expose inflator modules to temperatures above 65°C (150°F).
* Verify the correct replacement part number. Do not substitute a component from a different
vehicle.
* Use only original GM replacement parts available from your authorized GM dealer. Do not use
salvaged parts for repairs to the SIR system.
Discard any of the following components if it has been dropped from a height of 91 cm (3 feet) or
greater:
* Inflatable restraint sensing and diagnostic module (SDM)
* Any Inflatable restraint air bag module
* Inflatable restraint steering wheel module coil
* Any Inflatable restraint sensor
* Inflatable restraint seat belt pretensioners
* Inflatable restraint Passenger Presence System (PPS) module or sensor
Disabling Procedure - Air Bag Fuse
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position.
Important: The SDM may have more than one fused power input. To ensure there is no unwanted
SIR deployment, personal injury, or unnecessary SIR system repairs, remove all fuses supplying
power to the SDM. With all SDM fuses removed and the ignition switch in the ON position, the AIR
BAG warning indicator illuminates. This is normal operation, and does not indicate a SIR system
malfunction.
3. Locate and remove the fuse(s) supplying power to the SDM. 4. Wait 1 minute before working on
the system.
Enabling Procedure - Air Bag Fuse
1. Place the ignition in the OFF position.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Instrument Cluster / Carrier > Air
Bag(s) Arming and Disarming > System Information > Service and Repair > Page 16772
2. Install the fuse(s) supplying power to the SDM. 3. Turn the ignition switch to the ON position.
The AIR BAG indicator will flash then turn OFF. 4. Perform the Diagnostic System Check - Vehicle
if the AIR BAG warning indicator does not operate as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Disabling Procedure - Negative Battery Cable
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead. 2. Place the
ignition in the OFF position. 3. Disconnect the negative battery cable from the battery. 4. Wait 1
minute before working on system.
Enabling Procedure - Negative Battery Cable
1. Place the ignition in the OFF position. 2. Connect the negative battery cable to the battery. 3.
Turn the ignition switch to the ON position. The AIR BAG indicator will flash then turn OFF. 4.
Perform the Diagnostic System Check - Vehicle if the AIR BAG warning indicator does not operate
as described. Refer to Diagnostic System
Check - Vehicle. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic
System Check - Vehicle
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips
Low Tire Pressure Indicator: Technical Service Bulletins Tire Pressure Monitor - TPM System
Message/Service Tips
# 09-03-16-002A: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive
for Tire Pressure Monitor (TPM) System Message, Light and Customer Information - (Apr 27, 2010)
Subject: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire
Pressure Monitor (TPM) System Message, Light and Customer Information
Models: 2006-2011 Cars and Light Duty Trucks (Including Saturn and Saab)
2006-2010 HUMMER H2, H3
ATTENTION
The information found in this bulletin is to be used as a dealership service consultant procedures
for customers coming into the service lane with an illuminated "low tire light" or comments on a
check tire pressure/low tire pressure/add air to tire or service tire monitor system message.
Maintaining proper tire pressures is an Owner's Maintenance item and is not covered under
warranty.
This bulletin is being revised to add model years and update additional bulletin reference
information. Please discard Corporate Bulletin Number 09-03-16-002 (Section 03 -- Suspension).
Customer Concerns and Confusion with the Tire Pressure Monitoring (TPM) System
The following procedure should be used by dealership service consultants when a customer comes
into the service drive with a "low tire light" on or comments on a check tire pressure/low tire
pressure/add air to tire or service tire monitor system message. The service consultant should
perform the following steps:
Procedure
Turn the key to ON, without starting the engine.
^ If the low tire light comes on and stays on solid with a check tire pressure/low tire pressure/add
air to tire message (on vehicles equipped with DIC),
advise the customer:
- The system is working properly.
- Properly adjusting all tire air pressures to the recommended levels and driving the vehicle will turn
the light off (refer to the Tire and Loading Information label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
^ If the Tire Pressure Monitor (TPM) light blinks for one minute then stays on solid with a service
tire monitor system message (on vehicles equipped
with DIC):
- A TPM system problem exists. The vehicle should be written up accordingly and sent to your
service department for further DTC diagnosis and service.
- If dashes (--) are displayed in only one or two of the tire pressure readouts, it is likely caused by a
previous TPM system relearn that was performed incorrectly due to interference from another
vehicle's TPM system during the relearn process (refer to the Important statement later in this
bulletin regarding TPM relearn with a Tech 2(R)).
- If dashes (--) are displayed in all four of the tire pressure readouts, there is a system problem.
Follow the appropriate SI service procedures.
^ If a customer indicates the low tire light comes on for a few minutes when the vehicle is started,
then goes off after driving a while, advise the
customer:
- The system is working properly.
- Most likely, air pressure in one or more of the tires is low enough to turn the light on when tires
are cold. After driving for a while, tires will heat
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page
16777
up, allowing tire air pressure to increase above the threshold causing the light to go off. Properly
adjusting all tire air pressures to the recommended levels will correct this (Refer to the Tire and
Loading Information Label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
For more detailed information, refer to Corporate Bulletin Number 07-03-16-004C and TPMS
Training Course 13044.12T2.
Tire Pressure Light
At key on, without starting the vehicle:
Steady Solid Glowing TPM Indicator
If the TPM indicator appears as a steady glowing yellow lamp (as above), the system is functioning
properly and you should add air to the tires to correct this condition.
Blinking TPM Indicator
If the TPM indicator appears as a BLINKING yellow lamp for one minute and then stays on solid,
diagnostic service is needed.
The Effect of Outside Temperature on Tire Pressures
Important:
As a rule of thumb, tire pressure will change about 7kPa (1 psi) for every 6°C (10°F) decrease in
temperature - Tire pressure will drop when it gets colder outside, and rise when it gets warmer.
Under certain situations such as extreme outside temperature changes, the system may bring on a
solid light with a check tire pressure message. This should be considered normal and the system is
working properly. The light will turn off upon adding the proper amount of air to the tires (refer to the
Tire & Loading Information label in the driver's door opening). When properly adjusting tire air
pressure, the following steps are important to help optimize the system and prolong bringing a tire
pressure light on:
^ Use an accurate, high quality tire pressure gauge.
^ Never set the tire pressure below the specified placard value regardless of tire temperature or
ambient temperature.
^ Tire pressure should be set to the specified placard pressure at the lowest seasonal temperature
the vehicle will encounter during operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page
16778
^ When adding proper tire air pressure, it is important to remember fluctuations in outside air
temperatures and tire temperatures effect tire air pressures.
^ After you have added the proper tire pressure, if the vehicle has a DIC (after the system has
updated), check to see if DIC displays are the same
readings as the tire pressure gauge used (adjust as necessary).
^ Only perform a TPM sensor re-learn after a tire rotation or system part replacements and use the
Tech 2(R) to initiate the relearn whenever possible to
avoid invalid sensor I.D. learns.
Important:
Always take outside temperature and tire temperature into consideration to properly set tire
pressures. Foe example, on colder days (20°F/-7°C), if setting tire pressure when the vehicle has
been indoors (60°F/16°C) or the tires are warm from being driven, it will be necessary to
compensate for the low outside temperature by adding 21-27 kPa (3-4 psi) more then the
placecard pressure. At some later time, when the vehicle has been parked outside for a while, the
tires will cool off and the pressures will drop back into the placecard range.
Important:
Recently, nitrogen gas (for use in inflating tires) has become available to the general customer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. Tires inflated with nitrogen gas may exhibit less of a pressure change in response to
outside temperature changes. Nitrogen gas inflation is compatible with GM TPM sensors. For
additional information, refer to Corporate Service Bulletin 05-03-10-020C.
Important:
All Models (Except the Pontiac Vibe): Do not perform a TPM relearn at PDI, the system has already
been set at the Assembly Plant. Do not perform a TPM relearn after adding air to the tires. The low
tire light is similar to the low fuel indicator and adding something (fuel, air) to the vehicle makes that
light turn back off again. Note that because of system behavior, some vehicles must be driven a
short distance before the sensors recognize the increase in pressure and turns the light off again.
Pontiac Vibe Only: Do not use the TPMS reset button to turn off the light. The system will update
and light will turn off when all tire pressures have been adjusted followed by short distance drive.
Important:
All models (except the Pontiac Vibe): Each tire monitor sensor is learned to a specific vehicle
corner. When performing a TPM relearn (only after a tire rotation or replacement of a TPM sensor
or Module), always use the Tech2(R) to initiate the J 46079 relearned process. Tech 2(R) - initiated
relearns lock out other vehicle TPM signals that may be broadcasting in the area. Only signals
initiated by the J 46079 tool will be accepted. This method avoids storing false TPM I.D.s and will
prevent customers from returning with dashes (--) displayed in tire pressure readouts and/or a
flashing tire pressure monitor (TPM) light. Checking the four TPM I.D.s with the Tech 2(R) prior to
and following relearn to verify they are the same can prevent invalid I.D. learns.
Pontiac Vibe Only: Tire Monitor Sensors are not learned to a specific vehicle corner. Do not
perform a TPM Reset after tire rotation. The TPMS Reset button must only be used during
pre-delivery inspection by the dealer to initialize the system (after all tire pressures have been
adjusted properly) or when a Tire Pressure Monitor System component is replaced. The J 46079
tool does not work on Vibe TPM sensors. A TPMS relearn on Vibe must be preformed with a Tech
2(R) to set the TPMS Module in learn mode. The TPMS sensor IDs are entered through the Tech
2(R). Refer to SI for further Vibe TPMS information.
Labor Operation and Repair Order/Warranty System Claim Required Documentation
Important:
The ONLY time labor operation E0726 or E0722 should be used is to diagnose for a system issue.
That should ONLY occur if, at key ON, without starting the engine, the Tire Pressure Monitor (TPM)
blinks for one minute and then stays on solid with a Service Tire Monitor System message (on
vehicles equipped with a DIC) If that occurs, a TPM system problem exists and the system will
have set a DTC. If one of these operastions is used, the following Repair Order and Warranty
System documentation are required:
^ Document the customer complaint on the Repair Order.
^ Document the TPMS DTC that has set on the Repair Order.
^ Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim
submission (refer to the Claims Processing Manual,
Section IV, Warranty claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim
may be rejected. If the Warranty Parts Center (WPC) generates a request, this repair order
documentation must be sent back.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page
16779
Customer TPMS Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page
16780
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Low Tire Pressure Indicator >
Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System Message/Service Tips > Page
16781
Frequently Asked Questions
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Maintenance Required Lamp/Indicator
> Component Information > Service and Repair
Maintenance Required Lamp/Indicator: Service and Repair
SERVICE VEHICLE SOON or SERVICE ENGINE SOON INDICATOR
Your vehicle is equipped with a "SERVICE VEHICLE SOON"or a "SERVICE ENGINE SOON"
indicator. This indicator is not a maintenance indicator and does not mean a maintenance service
is required.
For additional "SERVICE VEHICLE SOON"or a "SERVICE ENGINE SOON" indicator information
refer to Malfunction Indicator Lamp.
For Maintenance Required Lamp/Indicator, refer to Oil Change Reminder Lamp. See: Oil Change
Reminder Lamp/Service and Repair
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Malfunction Indicator Lamp >
Component Information > Testing and Inspection
Malfunction Indicator Lamp: Testing and Inspection
MALFUNCTION INDICATOR LAMP (MIL) DIAGNOSIS
DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions provides an overview of each diagnostic category.
CIRCUIT/SYSTEM DESCRIPTION
Ignition voltage is supplied to the malfunction indicator lamp (MIL). The engine control module
(ECM) turns the MIL ON by grounding the MIL control circuit.
CIRCUIT/SYSTEM VERIFICATION
Ignition ON, the MIL should turn ON and OFF when commanded with a scan tool.
CIRCUIT/SYSTEM TESTING
1. Ignition OFF, disconnect the harness connector at the instrument panel cluster (IPC). 2. Ignition
ON, verify that a test lamp illuminates between the ignition circuit and ground.
- If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high
resistance. If the circuit tests normal and the ignition circuit fuse is open, replace the IPC.
3. Connect a test lamp between the control circuit and the ignition circuit. 4. Command the MIL ON
and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the
commanded states.
- If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests
normal, replace the ECM.
- If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high
resistance. If the circuit tests normal, replace the ECM.
5. If all circuits test normal, replace the IPC.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Control Module References for ECM replacement, setup, and programming
- Instrument Cluster Replacement See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests and Procedures See: Testing and Inspection/Programming and
Relearning
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Odometer > Component Information >
Technical Service Bulletins > Instruments - IPC Odometer Programming Reference Guide
Odometer: Technical Service Bulletins Instruments - IPC Odometer Programming Reference Guide
INFORMATION
Bulletin No.: 07-08-49-020D
Date: December 06, 2010
Subject: IPC Odometer Programming Method Quick Reference Guide
Models:
2003-2011 GM Passenger Cars and Trucks (Including Saturn) 2003-2010 HUMMER H2, H3
2005-2009 Saab 9-7X
Attention:
This bulletin applies to vehicles sold in the U.S. and Canada Only.
Supercede: This bulletin is being revised to add information for the 2011 model year and add new
2011 vehicles. Please discard Corporate Bulletin Number 07-08-49-020C (Section 08 - Body and
Accessories).
The purpose of this bulletin is to provide a reference guide to help identify which season odometer
programming method to use after replacing the instrument panel cluster (IPC). The three season
odometer programming methods in use today are listed below. In addition, this reference guide lists
the component where the season odometer value is stored. The season odometer value may be
stored in the IPC, the driver information center (DIC) or the integrated body control module (IBCM),
also commonly called a body control module (BCM).
Season Odometer Programming Methods in Use Today
1. IPC reprogramming and setup using the service programming system (SPS). 2. Odometer setup
at the electronic service center (ESC) when using an exchange IPC/DIC. 3. Tech 2(R) - The Tech 2
is used to set up a replacement BCM, which includes loading the odometer value that is displayed
and stored in the IPC. A
replacement IPC will display the previously stored vehicle odometer value, communicated from the
BCM, after cycling the ignition or driving the vehicle. *The odometer programming is integrated as
part of the BCM programming procedure. It is not a stand-alone event.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Odometer > Component Information >
Technical Service Bulletins > Instruments - IPC Odometer Programming Reference Guide > Page 16792
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Odometer > Component Information >
Technical Service Bulletins > Instruments - IPC Odometer Programming Reference Guide > Page 16793
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Odometer > Component Information >
Technical Service Bulletins > Instruments - IPC Odometer Programming Reference Guide > Page 16794
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Oil Change Reminder Lamp >
Component Information > Service and Repair
Oil Change Reminder Lamp: Service and Repair
ENGINE OIL LIFE SYSTEM
WHEN TO CHANGE ENGINE OIL
Your vehicle has a computer system that lets you know when to change the engine oil and filter.
This is based on engine revolutions and engine temperature, and not on mileage. Based on driving
conditions, the mileage at which an oil change will be indicated can vary considerably. For the oil
life system to work properly, you must reset the system every time the oil is changed.
When the system has calculated that oil life has been diminished, it will indicate that an oil change
is necessary. A "CHANGE ENGINE OIL SOON" message will come on. Change your oil as soon
as possible within the next 600 miles (1 000 km). It is possible that, if you are driving under the best
conditions, the oil life system may not indicate that an oil change is necessary for over a year.
However, your engine oil and filter must be changed at least once a year and at this time the
system must be reset. It is also important to check your oil regularly and keep it at the proper level.
If the system is ever reset accidentally, you must change your oil at 3,000 miles (5 000 km) since
your last oil change. Remember to reset the oil life system whenever the oil is changed.
HOW TO RESET THE ENGINE OIL LIFE SYSTEM
The Engine Oil Life System calculates when to change your engine oil and filter based on vehicle
use. Anytime your oil is changed, reset the system so it can calculate when the next oil change is
required. If a situation occurs where you change your oil prior to a change engine oil light being
turned on, reset the system.
1. Turn the ignition key to "RUN" with the engine off. 2. Fully press and release the accelerator
pedal three times within five seconds. The "CHANGE ENGINE OIL SOON" message will flash
while the
system is resetting.
3. When the light stops flashing, turn the key to "LOCK".
If the change engine oil light comes back on and stays on when you start your vehicle, the engine
oil life system has not reset. Repeat the procedure.
WHAT TO DO WITH USED OIL
Used engine oil contains certain elements that may be unhealthy for your skin and could even
cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with
soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing
used engine oil. See the manufacturer's warnings about the use and disposal of oil products.
Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil
from the filter before disposal. Never dispose of oil by putting it in the trash, pouring it on the
ground, into sewers, or into streams or bodies of water. Instead, recycle it by taking it to a place
that collects used oil. If you have a problem properly disposing of your used oil, ask your dealer, a
service station or a local recycling center for help.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Oil Pressure Sender > Component
Information > Diagrams
Oil Pressure Sender: Diagrams
Displays and Gages Connector End Views
Oil Pressure Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Outside Temperature Display >
Outside Temperature Display Sensor > Component Information > Service and Repair
Outside Temperature Display Sensor: Service and Repair
Ambient Air Temperature Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Parking Brake Warning Switch >
Component Information > Locations
Parking Brake Warning Switch: Locations
Park Brake Assembly
1 - Park Brake Switch 2 - Park Brake Handle 3 - Floor Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Parking Brake Warning Switch >
Component Information > Locations > Page 16808
Parking Brake Warning Switch: Diagrams
Park Brake Switch
Park Brake Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Parking Brake Warning Switch >
Component Information > Locations > Page 16809
Parking Brake Warning Switch: Service and Repair
Park Brake Warning Lamp Switch Replacement
Removal Procedure
1. Disable the supplemental inflatable restraint (SIR) system. 2. Remove the front floor console. 3.
Disconnect the warning lamp switch electrical connector (2). 4. Remove the warning lamp switch
mounting screw (1). 5. Remove the switch from the park brake lever assembly.
Installation Procedure
1. Align the park brake warning lamp switch locating tab to the locating hole on the park brake lever
assembly. 2. Install the switch to the park brake lever.
Notice: Refer to Fastener Notice .
3. Install the park brake warning lamp switch mounting screw (1).
Tighten the screw to 4 N.m (35 lb in).
4. Connect the park brake warning lamp switch electrical connector (2). 5. Install the front floor
console. 6. Enable the SIR system. 7. Verify correct park brake warning lamp operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Sensors and Switches - Instrument
Panel > Dimmer Switch > Component Information > Locations
Dimmer Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Sensors and Switches - Instrument
Panel > Dimmer Switch > Component Information > Locations > Page 16814
Dimmer Switch: Service and Repair
INSTRUMENT PANEL DIMMER SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Sensors and Switches - Instrument
Panel > Outside Temperature Display Sensor > Component Information > Service and Repair
Outside Temperature Display Sensor: Service and Repair
Ambient Air Temperature Sensor Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Sensors and Switches - Instrument
Panel > Parking Brake Warning Switch > Component Information > Locations
Parking Brake Warning Switch: Locations
Park Brake Assembly
1 - Park Brake Switch 2 - Park Brake Handle 3 - Floor Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Sensors and Switches - Instrument
Panel > Parking Brake Warning Switch > Component Information > Locations > Page 16821
Parking Brake Warning Switch: Diagrams
Park Brake Switch
Park Brake Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Sensors and Switches - Instrument
Panel > Parking Brake Warning Switch > Component Information > Locations > Page 16822
Parking Brake Warning Switch: Service and Repair
Park Brake Warning Lamp Switch Replacement
Removal Procedure
1. Disable the supplemental inflatable restraint (SIR) system. 2. Remove the front floor console. 3.
Disconnect the warning lamp switch electrical connector (2). 4. Remove the warning lamp switch
mounting screw (1). 5. Remove the switch from the park brake lever assembly.
Installation Procedure
1. Align the park brake warning lamp switch locating tab to the locating hole on the park brake lever
assembly. 2. Install the switch to the park brake lever.
Notice: Refer to Fastener Notice .
3. Install the park brake warning lamp switch mounting screw (1).
Tighten the screw to 4 N.m (35 lb in).
4. Connect the park brake warning lamp switch electrical connector (2). 5. Install the front floor
console. 6. Enable the SIR system. 7. Verify correct park brake warning lamp operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Shift Indicator > Component
Information > Description and Operation
Shift Indicator: Description and Operation
Shift Indicator Description and Operation
The shift indicator, located in the console, displays the selected gear position. The body control
module (BCM) controls the LEDs in the PRNDL display of the shift indicator through 4 control
circuits. The parameters of the 4 control circuits to the shift indicator are bits A, B, C, and parity.
These outputs are available for display on the scan tool. The BCM has 8 DTCs for these 4 control
circuits. These DTCs diagnose a short or an open for each circuit. The BCM receives selected gear
position information from the transmission control module (TCM) via serial data. The TCM receives
the gear position through four inputs from the park/neutral position switch assembly.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Tire Monitoring System > Low Tire
Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips
Low Tire Pressure Indicator: Technical Service Bulletins Tire Pressure Monitor - TPM System
Message/Service Tips
# 09-03-16-002A: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive
for Tire Pressure Monitor (TPM) System Message, Light and Customer Information - (Apr 27, 2010)
Subject: Dealership Service Consultant Procedure as Vehicle Comes into Service Drive for Tire
Pressure Monitor (TPM) System Message, Light and Customer Information
Models: 2006-2011 Cars and Light Duty Trucks (Including Saturn and Saab)
2006-2010 HUMMER H2, H3
ATTENTION
The information found in this bulletin is to be used as a dealership service consultant procedures
for customers coming into the service lane with an illuminated "low tire light" or comments on a
check tire pressure/low tire pressure/add air to tire or service tire monitor system message.
Maintaining proper tire pressures is an Owner's Maintenance item and is not covered under
warranty.
This bulletin is being revised to add model years and update additional bulletin reference
information. Please discard Corporate Bulletin Number 09-03-16-002 (Section 03 -- Suspension).
Customer Concerns and Confusion with the Tire Pressure Monitoring (TPM) System
The following procedure should be used by dealership service consultants when a customer comes
into the service drive with a "low tire light" on or comments on a check tire pressure/low tire
pressure/add air to tire or service tire monitor system message. The service consultant should
perform the following steps:
Procedure
Turn the key to ON, without starting the engine.
^ If the low tire light comes on and stays on solid with a check tire pressure/low tire pressure/add
air to tire message (on vehicles equipped with DIC),
advise the customer:
- The system is working properly.
- Properly adjusting all tire air pressures to the recommended levels and driving the vehicle will turn
the light off (refer to the Tire and Loading Information label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
^ If the Tire Pressure Monitor (TPM) light blinks for one minute then stays on solid with a service
tire monitor system message (on vehicles equipped
with DIC):
- A TPM system problem exists. The vehicle should be written up accordingly and sent to your
service department for further DTC diagnosis and service.
- If dashes (--) are displayed in only one or two of the tire pressure readouts, it is likely caused by a
previous TPM system relearn that was performed incorrectly due to interference from another
vehicle's TPM system during the relearn process (refer to the Important statement later in this
bulletin regarding TPM relearn with a Tech 2(R)).
- If dashes (--) are displayed in all four of the tire pressure readouts, there is a system problem.
Follow the appropriate SI service procedures.
^ If a customer indicates the low tire light comes on for a few minutes when the vehicle is started,
then goes off after driving a while, advise the
customer:
- The system is working properly.
- Most likely, air pressure in one or more of the tires is low enough to turn the light on when tires
are cold. After driving for a while, tires will heat
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Tire Monitoring System > Low Tire
Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips > Page 16831
up, allowing tire air pressure to increase above the threshold causing the light to go off. Properly
adjusting all tire air pressures to the recommended levels will correct this (Refer to the Tire and
Loading Information Label on the driver side door).
- More detailed information can be found in the Owner Manual.
- Service is not covered under warranty - this maintenance is the responsibility of the owner.
- Give the customer a copy of the "GM Customer TPMS Information".
For more detailed information, refer to Corporate Bulletin Number 07-03-16-004C and TPMS
Training Course 13044.12T2.
Tire Pressure Light
At key on, without starting the vehicle:
Steady Solid Glowing TPM Indicator
If the TPM indicator appears as a steady glowing yellow lamp (as above), the system is functioning
properly and you should add air to the tires to correct this condition.
Blinking TPM Indicator
If the TPM indicator appears as a BLINKING yellow lamp for one minute and then stays on solid,
diagnostic service is needed.
The Effect of Outside Temperature on Tire Pressures
Important:
As a rule of thumb, tire pressure will change about 7kPa (1 psi) for every 6°C (10°F) decrease in
temperature - Tire pressure will drop when it gets colder outside, and rise when it gets warmer.
Under certain situations such as extreme outside temperature changes, the system may bring on a
solid light with a check tire pressure message. This should be considered normal and the system is
working properly. The light will turn off upon adding the proper amount of air to the tires (refer to the
Tire & Loading Information label in the driver's door opening). When properly adjusting tire air
pressure, the following steps are important to help optimize the system and prolong bringing a tire
pressure light on:
^ Use an accurate, high quality tire pressure gauge.
^ Never set the tire pressure below the specified placard value regardless of tire temperature or
ambient temperature.
^ Tire pressure should be set to the specified placard pressure at the lowest seasonal temperature
the vehicle will encounter during operation.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Tire Monitoring System > Low Tire
Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips > Page 16832
^ When adding proper tire air pressure, it is important to remember fluctuations in outside air
temperatures and tire temperatures effect tire air pressures.
^ After you have added the proper tire pressure, if the vehicle has a DIC (after the system has
updated), check to see if DIC displays are the same
readings as the tire pressure gauge used (adjust as necessary).
^ Only perform a TPM sensor re-learn after a tire rotation or system part replacements and use the
Tech 2(R) to initiate the relearn whenever possible to
avoid invalid sensor I.D. learns.
Important:
Always take outside temperature and tire temperature into consideration to properly set tire
pressures. Foe example, on colder days (20°F/-7°C), if setting tire pressure when the vehicle has
been indoors (60°F/16°C) or the tires are warm from being driven, it will be necessary to
compensate for the low outside temperature by adding 21-27 kPa (3-4 psi) more then the
placecard pressure. At some later time, when the vehicle has been parked outside for a while, the
tires will cool off and the pressures will drop back into the placecard range.
Important:
Recently, nitrogen gas (for use in inflating tires) has become available to the general customer
through some retailers. The use of nitrogen gas to inflate tires is a technology used in automobile
racing. Tires inflated with nitrogen gas may exhibit less of a pressure change in response to
outside temperature changes. Nitrogen gas inflation is compatible with GM TPM sensors. For
additional information, refer to Corporate Service Bulletin 05-03-10-020C.
Important:
All Models (Except the Pontiac Vibe): Do not perform a TPM relearn at PDI, the system has already
been set at the Assembly Plant. Do not perform a TPM relearn after adding air to the tires. The low
tire light is similar to the low fuel indicator and adding something (fuel, air) to the vehicle makes that
light turn back off again. Note that because of system behavior, some vehicles must be driven a
short distance before the sensors recognize the increase in pressure and turns the light off again.
Pontiac Vibe Only: Do not use the TPMS reset button to turn off the light. The system will update
and light will turn off when all tire pressures have been adjusted followed by short distance drive.
Important:
All models (except the Pontiac Vibe): Each tire monitor sensor is learned to a specific vehicle
corner. When performing a TPM relearn (only after a tire rotation or replacement of a TPM sensor
or Module), always use the Tech2(R) to initiate the J 46079 relearned process. Tech 2(R) - initiated
relearns lock out other vehicle TPM signals that may be broadcasting in the area. Only signals
initiated by the J 46079 tool will be accepted. This method avoids storing false TPM I.D.s and will
prevent customers from returning with dashes (--) displayed in tire pressure readouts and/or a
flashing tire pressure monitor (TPM) light. Checking the four TPM I.D.s with the Tech 2(R) prior to
and following relearn to verify they are the same can prevent invalid I.D. learns.
Pontiac Vibe Only: Tire Monitor Sensors are not learned to a specific vehicle corner. Do not
perform a TPM Reset after tire rotation. The TPMS Reset button must only be used during
pre-delivery inspection by the dealer to initialize the system (after all tire pressures have been
adjusted properly) or when a Tire Pressure Monitor System component is replaced. The J 46079
tool does not work on Vibe TPM sensors. A TPMS relearn on Vibe must be preformed with a Tech
2(R) to set the TPMS Module in learn mode. The TPMS sensor IDs are entered through the Tech
2(R). Refer to SI for further Vibe TPMS information.
Labor Operation and Repair Order/Warranty System Claim Required Documentation
Important:
The ONLY time labor operation E0726 or E0722 should be used is to diagnose for a system issue.
That should ONLY occur if, at key ON, without starting the engine, the Tire Pressure Monitor (TPM)
blinks for one minute and then stays on solid with a Service Tire Monitor System message (on
vehicles equipped with a DIC) If that occurs, a TPM system problem exists and the system will
have set a DTC. If one of these operastions is used, the following Repair Order and Warranty
System documentation are required:
^ Document the customer complaint on the Repair Order.
^ Document the TPMS DTC that has set on the Repair Order.
^ Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim
submission (refer to the Claims Processing Manual,
Section IV, Warranty claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim
may be rejected. If the Warranty Parts Center (WPC) generates a request, this repair order
documentation must be sent back.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Tire Monitoring System > Low Tire
Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips > Page 16833
Customer TPMS Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Tire Monitoring System > Low Tire
Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips > Page 16834
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Tire Monitoring System > Low Tire
Pressure Indicator > Component Information > Technical Service Bulletins > Tire Pressure Monitor - TPM System
Message/Service Tips > Page 16835
Frequently Asked Questions
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Tire Monitoring System > Tire
Pressure Module > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs
Tire Pressure Module: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Tire Monitoring System > Tire
Pressure Monitor Receiver / Transponder > Component Information > Technical Service Bulletins > Tire Monitor System TPM Sensor Information
Tire Pressure Monitor Receiver / Transponder: Technical Service Bulletins Tire Monitor System TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Tire Monitoring System > Tire
Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs
Tire Pressure Sensor: Technical Service Bulletins TPMS System - Service And Re-Learning
Sensor IDs
INFORMATION
Bulletin No.: 10-03-16-001
Date: July 19, 2010
Subject: TPMS System Service and Re-Learning Sensor IDs
Models:
2011 and Prior GM Passenger Cars and Light Duty Trucks 2010 and Prior HUMMER H2 2009 and
Prior HUMMER H3 2010 and Prior Saturn Models 2009 and Prior Saab 9-7X with Wheel-Mounted
Tire Pressure Sensors
In the event that the spare tire, which is normally not equipped with a tire pressure monitor (TPM)
sensor, is installed in place of one of the road tires and the vehicle is driven above 40 km/h (25
mph) for 20 minutes or more, the TPM indicator icon on the instrument panel cluster (IPC) will flash
for approximately one minute and then remain on steady each time the ignition is turned ON,
indicating a diagnostic trouble code (DTC) has been set.
The driver information center (DIC), if equipped, will also display a SERVICE TIRE MONITOR type
message. When the road tire is repaired and reinstalled in the original location, the TPM indicator
icon illumination and DIC message may remain displayed until the DTC is cleared.
To ensure that the TPM indicator and the DIC message are cleared after service, it is necessary to
clear any TPM DTCs using a scan tool. If a scan tool is unavailable, performing the TPM relearn
procedure using a TPM diagnostic tool will provide the same results.
It is advised to perform the relearn procedure away from other vehicles to prevent picking up a
stray sensor signal. If one or more of the TPM sensors are missing or damaged and have been
replaced, then the relearn procedure must be performed.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Tire Monitoring System > Tire
Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 16848
Tire Pressure Sensor: Technical Service Bulletins Tire Monitor System - TPM Sensor Information
INFORMATION
Bulletin No.: 08-03-16-003
Date: May 12, 2008
Subject: Warranty Reduction - Transfer of Tire Pressure Monitoring (TPM) Sensors to
Replacement Wheels and Allowable TPM Sensor Replacements
Models: 2000-2009 GM Passenger Cars and Light Duty Trucks (including Saturn) 2003-2009
HUMMER H2 2006-2009 HUMMER H3 2005-2009 Saab 9-7x
with On-Wheel TPM Sensors
TPM Sensor / Wheel Warranty Reviews
During the last warranty review period it was noted that wheels being returned under the GM New
Vehicle Warranty were being shipped back to General Motors with the TPM sensor still attached to
the wheel. Return rates ran as high as 60% with the TPM sensors still attached. Operational TPM
sensors should not be returned to GM and are to be transferred to replacement wheels if they
become necessary.
Important:
Operational TPM Sensors that are returned under warranty to General Motors will be charged back
to the dealer.Sensors have a 10 year /150,000 mile (240,000 km) battery life, and should be
transferred if one or more wheels are replaced.
TPM Valve Stem / Grommet (0-ring) Replacement
When the TPM sensors are transferred to new wheels you should replace the component used to
seal the TPM sensor stem to the wheel. On sensors with an aluminum stem and visible nut on the
outside of the wheel a replacement grommet (0-ring) should be used to assure a proper seal. The
sensor retaining nut (except Aveo) should be tightened to 7 N.m (62 lb in) for all vehicles except
Pontiac Vibe (4.0 N.m (35.4 lb in)).
Important:
^ DO NOT overtorque the retaining nut.
Notice:
^ Factory installed TPM Sensors come with plastic aluminum or nickel-plated brass stem caps.
These caps should not be changed. Chrome plated steel caps may cause corrosion of aluminum
valve stems due to incompatibility of the metals.
On current style sensors the entire rubber stem is replaceable. The service interval on the revised
TPM sensor with replaceable stem is the same as for any other traditional valve stem. Replace the
stem at the time of tire replacement sensor transfer or whenever air seepage is suspected at the
valve stem. When replacing the valve stem tighten the screw to 1.3 N.m (11.5 lb in).
For either style of TPM sensor see the service parts guide for the correct GM part numbers to order
and use.
Disclaimer
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Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Tire Monitoring System > Tire
Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 16849
Tire Pressure Sensor: Technical Service Bulletins Tires - Minimizing Damage to TPM Sensors
INFORMATION
Bulletin No.: 08-03-10-007
Date: May 16, 2008
Subject: Minimizing Damage to Tire Pressure Monitor (TPM) Sensors During Tire
Mounting/Dismounting
Models: 2009 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn) 2009 and
Prior HUMMER H2, H3 2009 and Prior Saab 9-7X
with Wheel Mounted Tire Pressure Sensors
Minimizing Damage To TPM Sensors
All GM vehicles now in production and sold in the U.S., as well as many vehicles sold in Canada,
feature Tire Pressure Monitoring Systems that have valve stem mounted Tire Pressure Sensors.
When dismounting and mounting tires, care must be taken when breaking the bead loose from the
wheel. If the tire machines bead breaking fixture is positioned too close to the tire pressure sensor,
as the tire bead breaks away from the wheel it may be forced into, or catch on the edge of the tire
pressure sensor. This can damage the sensor and require the sensor to be replaced.
Care must also be taken when transferring the tire bead to the other side of the wheel rim. As the
tire machine rotates and the tire bead is stretched around the wheel rim, the bead can come in
contact with the sensor if it is not correctly positioned in relation to the mounting/dismounting head
prior to tire mounting/dismounting. This can also cause sensor damage requiring replacement.
Procedure
Notice:
Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in
order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result.
Notice:
Do not scratch or damage the clear coating on aluminum wheels with the tire changing equipment.
Scratching the clear coating could cause the aluminum wheel to corrode and the clear coating to
peel from the wheel.
1. Remove the valve core from the valve stem.
2. Deflate the tire completely.
Important:
Rim-clamp European-type tire changers are recommended.
3. Use the tire changer in order to remove the tire from the wheel. Follow steps 4-7 to remove the
tire from the wheel.
4. When separating the tire bead from the wheel position the bead breaking fixture 90, 180 and 270
degrees from the valve stem.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Sensor IDs > Page 16850
5. Position the wheel and tire so the valve stem is situated at the 2 o'clock position relative to the
head. The tire iron or pry bar can be inserted when prying the outer tire bead up and over the
mounting/dismounting head.
6. Position the wheel and tire so that the valve stem is situated again at the 2 o'clock position
relative to the head. The tire iron or pry bar can be inserted when prying the inner tire bead up and
over the mounting/dismounting head.
7. Remove all residual liquid sealant from the inside of the tire and wheel surfaces. If any tire
sealant is noted upon tire dismounting on vehicles equipped with TPM replace the tire pressure
sensor.
8. Use a wire brush or coarse steel wool in order to remove any rubber, light rust or corrosion from
the wheel bead seats.
Important:
If bead seat corrosion has been identified as an air loss concern on the wheel being worked on,
refer to GM Service Bulletin # 08-03-10-006 for additional information on correcting the leak.
9. Apply GM P/N 12345884 (in Canada, P/N 5728223) or equivalent to the tire bead and the wheel
rim.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Sensor IDs > Page 16851
10. Using the tire machine, rotate the tire/wheel assembly clockwise when transferring the tire bead
to the inside of the wheel rim.
11. Position the rim so that the valve stem (1) is situated at the 3 o'clock position relative to the
head (2). This will protect the sensor when the bottom bead seats.
12. After the bottom bead is on the wheel, reposition the wheel and tire so that the valve stem is
situated at the 9 o'clock position relative to the head. This will protect the sensor while mounting
the tire bead to the outside of the wheel.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Pressure Sensor > Component Information > Technical Service Bulletins > TPMS System - Service And Re-Learning
Sensor IDs > Page 16852
13. Use the tire changer in order to install the tire to the wheel.
Caution:
To avoid serious personal injury, do not stand over tire when inflating. The bead may break when
the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any
tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, lubricate
the beads and reinflate. Overinflating may cause the bead to break and cause serious personal
injury.
Important:
Allowable bead seating pressure is 345 kPa (50 psi) on Extended Mobility Tires.
14. Inflate the tire until it passes the bead humps. Be sure that the valve core is not installed at this
time.
15. Install the valve core to the valve core stem.
16. Inflate the tire to the proper air pressure.
17. Ensure that the locating rings are visible on both sides of the tire in order to verify that the tire
bead is fully seated on the wheel.
Parts Information
The product shown above is available from GM SPO.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Transmission Shift Position Indicator
Lamp > Component Information > Technical Service Bulletins > Instruments - Reduced PRNDL Display Visibility
Transmission Shift Position Indicator Lamp: Technical Service Bulletins Instruments - Reduced
PRNDL Display Visibility
Bulletin No.: 02-08-42-004A
Date: March 30, 2007
INFORMATION
Subject: PRNDL Display Reduced Visibility For Approximately One Minute
Models: 2007 and Prior Passenger Cars and Trucks (Including Saturn) 2007 and Prior HUMMER
H2, H3 2005-2007 Saab 9-7X
with Automatic Headlamp Control and Vacuum Fluorescent PRNDL Indicator Instrument Panel
Cluster
Supercede:
This bulletin is being revised to include additional models and model years. Please discard
Corporate Bulletin Number 02-08-42-0004 (Section 08 - Body and Accessories).
After backing the vehicle out of a garage or dark environment into a daylight environment, the
PRNDL display has reduced visibility for approximately one minute.
While the vehicle is parked in a dark environment, the sensor for the automatic headlamp/driving
lamps senses that it is dark. When the key is turned to the run/start position, the automatic
headlamp module will turn all driving lamps, the instrument panel cluster and PRNDL display ON in
the night-time mode. The night-time mode intensity of the instrument panel lamps and PRNDL
display is controlled by the automatic headlamp module and can be dimmed further by the
customer using the dimming control of the headlamp switch.
When the customer then moves the vehicle from the dark environment into the bright sunlight, it will
take approximately one minute before the headlamp control module recognizes this as true daylight
and not just a bright overhead street lamp shining on the sensor. The headlamp control module will
then turn the headlamps off and restore the instrument panel and PRNDL display to full brilliance.
Without the time delay, the automatic headlamp control module would switch to the night mode
(turn on all driving lamps, instrument panel lamps and PRNDL display would dim) each time the
vehicle was driven under an overpass or other darkened environment.
This is a normal condition and no repair should be attempted.
Ensure the instrument panel backlighting control is in the full bright position. This will help alleviate
the condition. You may demonstrate to the customer what happens by placing a repair order over
the automatic headlamp control light sensor, which will cause the automatic headlamp control
module to switch to the night mode in approximately one minute. All driving lamps will come ON,
the instrument panel backlight will be dim, and the PRNDL display will also dim to the night setting
in conjunction with the position of the headlamp switch dimming control. Demonstrate to the
customer the variance in the instrument panel backlighting and PRNDL display while adjusting the
headlamp switch dimming control to both ends of its allowable range. Advise the customer to keep
the headlight switch dimming control in the highest position to allow viewing of the PRNDL display
in a bright environment.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Instrument Panel, Gauges and Warning Indicators > Transmission Shift Position Indicator
Lamp > Component Information > Technical Service Bulletins > Page 16857
Transmission Shift Position Indicator Lamp: Service and Repair
TRANSMISSION FLOOR SHIFT CONTROL INDICATOR LAMP REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Ambient Light Sensor > Component Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Ambient Light Sensor > Component Information > Locations > Page
16862
Ambient Light Sensor: Service and Repair
AMBIENT LIGHT SENSOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Backup Lamp > Backup Light Bulb > Component Information >
Service and Repair
Backup Light Bulb: Service and Repair
BACKUP LAMP BULB REPLACEMENT (EQUINOX)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Brake Lamp > Component Information > Technical Service Bulletins >
Lighting - Exterior Lamp Condensation and Replacement
Brake Lamp: Technical Service Bulletins Lighting - Exterior Lamp Condensation and Replacement
INFORMATION
Bulletin No.: 01-08-42-001H
Date: January 05, 2011
Subject: Exterior Lamp Condensation and Replacement Guidelines
Models:
2011 and Prior GM Passenger Cars and Trucks (including Saturn)
Supercede: This bulletin is being revised to add the 2011 model year. Please discard Corporate
Bulletin Number 01-08-42-001G (Section 08 - Body and Accessories).
The following information is being provided to better define the causes of condensation in exterior
lamps and includes guidelines for determining the difference between a lamp with a normal
atmospheric condition (condensation) and a lamp with a water leak.
Some exterior lamps, such as cornering, turn signal, backup, headlamps or tail lamps may exhibit
very small droplets of water, a fine mist or white fog (condensation) on the inside of the lamp lens.
This may be more noticeable on lamps with "multi-lens" designs and may be normal during certain
weather conditions.
Condensation occurs when the air inside the lamp assembly, through atmospheric changes,
reaches the "dew point". When this takes place, the moisture in the air within the lamp assembly
condenses, creating a fine mist or white fog on the inside surface of the lamp lens.
Most exterior lamps on General Motors vehicles use a vented design and feature a replaceable
bulb assembly. They are designed to remove any accumulated moisture vapor by expelling it
through a vent system. The vent system operates at all times, however, it is most effective when
the lamps are ON or when the vehicle is in motion. Depending on the size, shape and location of
the lamp on the vehicle, and the atmospheric conditions occurring, the amount of time required to
clear the lamp may vary from 2 to 6 hours.
Completely sealed headlamp assemblies (sealed beams) are still used on a limited number of
models being manufactured today. These lamps require the replacement of the complete lamp
assembly if a bulb filament burns out.
Condensation 2006 TrailBlazer Shown
A Fine Mist or White Fog on the Inside Surface of the Lamp Lens Occurring After a Period of High
Humidity
- May be located primarily in the lens corners (near the vents) and SHOULD NOT cover more than
half the lens surface.
- The condition should clear of moisture when the vehicle is parked in a dry environment, or when
the vehicle is driven with the lights ON.
- A comparison of the equivalent lamp on the opposing side of the vehicle indicates a SIMILAR
performance.
If the above conditions are noted, the customer should be advised that replacement of a lamp
assembly may not correct this condition.
Water Leak New Style Pickup Shown
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Lighting - Exterior Lamp Condensation and Replacement > Page 16872
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Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Brake Lamp > Component Information > Diagrams > Diagram
Information and Instructions
Brake Lamp: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Information and Instructions > Page 16875
Electrical Symbols Part 2
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Information and Instructions > Page 16876
Electrical Symbols Part 3
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Information and Instructions > Page 16877
Electrical Symbols Part 4
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Information and Instructions > Page 16878
Electrical Symbols Part 5
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Information and Instructions > Page 16879
Electrical Symbols Part 6
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Information and Instructions > Page 16880
Electrical Symbols Part 7
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Information and Instructions > Page 16881
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Information and Instructions > Page 16883
Brake Lamp: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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Information and Instructions > Page 16888
cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Information and Instructions > Page 16962
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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Information and Instructions > Page 16963
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Information and Instructions > Page 16964
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Information and Instructions > Page 16965
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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Information and Instructions > Page 16966
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 16967
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 16969
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 16970
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 16971
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 16972
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Information and Instructions > Page 16973
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Brake Lamp: Description and Operation
STOP LAMPS
The 15A BRAKE fuse located in the fuse block - underhood, supplies battery positive voltage to the
normally open stop lamp switch. When the driver presses the brake pedal, the switch contacts
close and battery positive voltage is supplied to both left and right stop lamp assemblies, the center
high mounted stop lamp (CHMSL), the engine control module (ECM), and the throttle actuator
control (TAC) module. The stop lamps are grounded at G401 and G403. The CHMSL is grounded
at G301.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Brake Light Switch > Component Information > Diagrams
Brake Light Switch: Diagrams
Brake Pedal Position Sensor
Brake Pedal Position Sensor
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Brake Light Switch: Adjustments
STOP LAMP SWITCH ADJUSTMENT
ADJUSTMENT PROCEDURE
1. NOTE: Proper stoplamp switch adjustment is essential. Improper stoplamp switch adjustment
may cause brake drag, heat buildup and excessive
brake lining wear.
Disconnect the electrical connector from the stop lamp switch.
2. Rotate the switch counterclockwise and remove the switch from the switch retainer.
3. IMPORTANT: Do NOT depress the brake pedal assembly during the stop lamp switch
installation. This will cause a drag condition on the
brake.
Install the switch to the bracket by turning and pushing the switch until the switch bottoms on the
brake pedal.
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4. Connect the electrical connector to the stop lamp switch. 5. Inspect the stop lamps for proper
operation
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Brake Light Switch: Service and Repair
STOP LAMP SWITCH REPLACEMENT
ADJUSTMENT PROCEDURE
1. NOTE: Proper stoplamp switch adjustment is essential. Improper stoplamp switch adjustment
may cause brake drag, heat buildup and excessive
brake lining wear.
Disconnect the electrical connector from the stop lamp switch.
2. Rotate the switch counterclockwise and remove the switch from the switch retainer.
3. IMPORTANT: Do NOT depress the brake pedal assembly during the stop lamp switch
installation. This will cause a drag condition on the
brake.
Install the switch to the bracket by turning and pushing the switch until the switch bottoms on the
brake pedal.
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4. Connect the electrical connector to the stop lamp switch. 5. Inspect the stop lamps for proper
operation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Cargo Lamp > Component Information > Service and Repair > Cargo
Lamp Replacement
Cargo Lamp: Service and Repair Cargo Lamp Replacement
CARGO LAMP REPLACEMENT
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Lamp Replacement > Page 16986
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Cargo Lamp > Component Information > Service and Repair > Cargo
Lamp Replacement > Page 16987
Cargo Lamp: Service and Repair Cargo Lamp Bulb Replacement
CARGO LAMP BULB REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Center Mounted Brake Lamp > Component Information > Diagrams
Center High Mounted Stop Lamp (CHMSL)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Center Mounted Brake Lamp > Component Information > Diagrams >
Page 16991
Center Mounted Brake Lamp: Service and Repair
HIGH MOUNTED STOP LAMP REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Courtesy Lamp > Component Information > Diagrams > Diagram
Information and Instructions
Courtesy Lamp: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Information and Instructions > Page 16996
Electrical Symbols Part 2
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Information and Instructions > Page 16997
Electrical Symbols Part 3
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Information and Instructions > Page 16998
Electrical Symbols Part 4
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Information and Instructions > Page 16999
Electrical Symbols Part 5
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Information and Instructions > Page 17000
Electrical Symbols Part 6
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Information and Instructions > Page 17001
Electrical Symbols Part 7
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Information and Instructions > Page 17002
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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Information and Instructions > Page 17003
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 17004
Courtesy Lamp: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
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SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Courtesy Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17092
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Courtesy Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17093
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Courtesy Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17094
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Daytime Running Lamp > Daytime Running Lamp Relay >
Component Information > Locations
Daytime Running Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Dimmer Switch > Component Information > Locations
Dimmer Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Dimmer Switch > Component Information > Locations > Page 17102
Dimmer Switch: Service and Repair
INSTRUMENT PANEL DIMMER SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Dome Lamp > Dome Lamp Bulb > Component Information > Service
and Repair > Dome Lamp Bulb Replacement (Without DVD)
Dome Lamp Bulb: Service and Repair Dome Lamp Bulb Replacement (Without DVD)
DOME LAMP BULB REPLACEMENT (WITHOUT DVD)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Dome Lamp > Dome Lamp Bulb > Component Information > Service
and Repair > Dome Lamp Bulb Replacement (Without DVD) > Page 17108
Dome Lamp Bulb: Service and Repair Dome Lamp Bulb Replacement (With DVD)
DOME LAMP BULB REPLACEMENT (WITH DVD)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Fog/Driving Lamp > Fog/Driving Lamp Bulb > Component Information
> Service and Repair
Fog/Driving Lamp Bulb: Service and Repair
FRONT FOG LAMP BULB REPLACEMENT (EQUINOX)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Fog/Driving Lamp > Fog/Driving Lamp Relay > Component
Information > Locations
Fog/Driving Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Fog/Driving Lamp > Fog/Driving Lamp Switch > Component
Information > Diagrams
Fog Lamp Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Fog/Driving Lamp > Fog/Driving Lamp Switch > Component
Information > Diagrams > Page 17119
Fog/Driving Lamp Switch: Service and Repair
FOG LAMP SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Hazard Warning Lamps > Hazard Warning Switch > Component
Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Hazard Warning Lamps > Hazard Warning Switch > Component
Information > Locations > Page 17124
Hazard Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Hazard Warning Lamps > Hazard Warning Switch > Component
Information > Locations > Page 17125
Hazard Warning Switch: Service and Repair
HAZARD WARNING SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Headlamp > Headlamp Bulb > Component Information > Service and
Repair
Headlamp Bulb: Service and Repair
HEADLAMP BULB REPLACEMENT (EQUINOX)
REMOVAL PROCEDURE
1. Open the hood.
2. Remove the fascia to tie bar push-in retainers (1).
3. Gently pull the top of the fascia assembly several inches away from the vehicle to release the
radiator grille strap from the headlamp. 4. Place a piece of tape over the radiator grille strap to
headlamp retaining clip to prevent scratching of the headlamp lens.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Headlamp > Headlamp Bulb > Component Information > Service and
Repair > Page 17130
5. Remove the headlamp bolts (1, 2).
6. Pull gently on the bottom outboard corner of the headlamp to disengage the lower rear
headlamp retainer. 7. Remove the headlamp from the vehicle.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Headlamp > Headlamp Bulb > Component Information > Service and
Repair > Page 17131
1. Position the headlamp into the headlamp opening.
2. Push the headlamp back into position until the lower rear retainer is fully engaged.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Headlamp > Headlamp Bulb > Component Information > Service and
Repair > Page 17132
3. NOTE: Refer to Fastener Notice.
Install the headlamp bolts (1, 2)
Tighten the headlamp bolts to 2.5 N.m (22 lb in).
4. Remove the tape from the radiator grille strap retainer.
5. Position the fascia assembly and engage the radiator grille strap retainer into the headlamp.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Headlamp > Headlamp Bulb > Component Information > Service and
Repair > Page 17133
6. Install the fascia to tie bar push-in retainers (1). 7. Close the hood. 8. Check and adjust the front
headlamp aim after the headlamp has been reinstalled. Refer to Headlamp Aiming.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Headlamp > Headlamp Lens > Component Information > Technical
Service Bulletins > Lighting - Headlamp Polycarbonate Lens Damage Prevention
Headlamp Lens: Technical Service Bulletins Lighting - Headlamp Polycarbonate Lens Damage
Prevention
INFORMATION
Bulletin No.: 02-08-42-001D
Date: June 21, 2010
Subject: Headlamp Lens Overheating When Covered and Chemical Damage to Exterior
Polycarbonate Headlamp Lenses
Models:
2011 and Prior GM Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2,
H3 2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add model years and to revise the warning statements.
Please discard Corporate Bulletin Number 02-08-42-001C (Section 08 - Body and Accessories).
The bulletin is being issued to make dealers and customers aware of chemical damage that may
be caused to exterior polycarbonate headlamp lenses. Most late model vehicles have these types
of headlamp lenses. This material is used because of its temperature and high impact resistance.
A variety of chemicals can cause crazing or cracking of the headlamp lens. Headlamp lenses are
very sensitive. Care should be exercised to avoid contact with all exterior headlamp lenses when
treating a vehicle with any type of chemical, such as those recommended for rail dust removal.
Rubbing compound, grease tar and oil removers, tire cleaners, cleaner waxes and even car wash
soaps in too high a concentration may also attribute to this condition. This could result in the need
to replace the entire headlamp housing.
Warning
Use only lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and
lenses.
Also, crazing or deformations of the lens may occur if a shop mat or fender cover is draped over
the fender and covers a portion or all of the headlamp assembly while the DRL or headlamps are
on. This action restricts the amount of heat dissipated by the headlamps.
Warning
Care should be taken to not cover headlamps with shop mats or fender covers if the vehicle is
being serviced with the headlamps or DRL illuminated. Covering an illuminated lamp can cause
excessive heat build up and crazing/deformation of the lens may occur. The degradation of the lens
can be unnoticeable at first and eventually become hairline cracks in the lens. In extreme cases, it
could cause the lens to deform. This damage can also be caused by aftermarket shields that are
often tinted in color.
Once a heat buildup is generated by the headlamp, a degradation of the headlamp lens begins.
This degradation of the lens can be unnoticeable at first and eventually manifest as spider cracks.
In more extreme cases, it will begin to melt the lens of the headlamp.
Notice
Headlamps damaged by chemicals, improper cleaning, or overheating due to being covered are
not covered under the new vehicle warranty.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Headlamp > Headlamp Relay > Component Information > Locations
Headlamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Headlamp > Headlamp Switch > Component Information > Diagrams
Headlamp Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Headlamp > High Beam Relay > Component Information > Locations
High Beam Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Headlamp > Low Beam Relay > Component Information > Locations
Low Beam Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Horn > Horn Relay > Component Information > Locations
Horn Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Horn > Horn Switch > Component Information > Locations
Steering Wheel Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > License Plate Lamp > License Plate Bulb > Component Information >
Service and Repair
License Plate Bulb: Service and Repair
LICENSE LAMP BULB REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Map Light > Map Light Bulb > Component Information > Service and
Repair
Map Light Bulb: Service and Repair
READING LAMP BULB REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Marker Lamp > Marker Lamp Bulb > Component Information >
Service and Repair > Front Side Marker Lamp Bulb Replacement (Equinox)
Marker Lamp Bulb: Service and Repair Front Side Marker Lamp Bulb Replacement (Equinox)
FRONT SIDE MARKER LAMP BULB REPLACEMENT (EQUINOX)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Marker Lamp > Marker Lamp Bulb > Component Information >
Service and Repair > Front Side Marker Lamp Bulb Replacement (Equinox) > Page 17170
Marker Lamp Bulb: Service and Repair Rear Side Marker Lamp Bulb Replacement (Equinox)
REAR SIDE MARKER LAMP BULB REPLACEMENT (EQUINOX)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Parking Lamp > Parking Lamp Relay > Component Information >
Locations
Parking Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Parking Lamp > Parking Light Bulb > Component Information >
Service and Repair > Park/Turn Signal Lamp Bulb Replacement (Equinox Park Lamp)
Parking Light Bulb: Service and Repair Park/Turn Signal Lamp Bulb Replacement (Equinox Park
Lamp)
PARK/TURN SIGNAL LAMP BULB REPLACEMENT (EQUINOX PARK LAMP)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Parking Lamp > Parking Light Bulb > Component Information >
Service and Repair > Park/Turn Signal Lamp Bulb Replacement (Equinox Park Lamp) > Page 17179
Parking Light Bulb: Service and Repair Park/Turn Signal Lamp Bulb Replacement (Equinox Turn
Lamp)
PARK/TURN SIGNAL LAMP BULB REPLACEMENT (EQUINOX TURN LAMP)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Parking Lamp > Parking Light Bulb > Component Information >
Service and Repair > Park/Turn Signal Lamp Bulb Replacement (Equinox Park Lamp) > Page 17180
Parking Light Bulb: Service and Repair Park/Turn Signal Lamp Bulb Replacement (Torrent Turn
Lamp)
PARK/TURN SIGNAL LAMP BULB REPLACEMENT (TORRENT TURN LAMP)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Relays and Modules - Lighting and Horns > Daytime Running Lamp
Relay > Component Information > Locations
Daytime Running Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Relays and Modules - Lighting and Horns > Fog/Driving Lamp Relay >
Component Information > Locations
Fog/Driving Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Relays and Modules - Lighting and Horns > Headlamp Relay >
Component Information > Locations
Headlamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Relays and Modules - Lighting and Horns > High Beam Relay >
Component Information > Locations
High Beam Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Relays and Modules - Lighting and Horns > Horn Relay > Component
Information > Locations
Horn Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Relays and Modules - Lighting and Horns > Low Beam Relay >
Component Information > Locations
Low Beam Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Relays and Modules - Lighting and Horns > Parking Lamp Relay >
Component Information > Locations
Parking Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Relays and Modules - Lighting and Horns > Tail Lamp Relay >
Component Information > Locations
Tail Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Ambient Light Sensor >
Component Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Ambient Light Sensor >
Component Information > Locations > Page 17210
Ambient Light Sensor: Service and Repair
AMBIENT LIGHT SENSOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Brake Light Switch >
Component Information > Diagrams
Brake Light Switch: Diagrams
Brake Pedal Position Sensor
Brake Pedal Position Sensor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Brake Light Switch >
Component Information > Diagrams > Page 17214
Brake Light Switch: Adjustments
STOP LAMP SWITCH ADJUSTMENT
ADJUSTMENT PROCEDURE
1. NOTE: Proper stoplamp switch adjustment is essential. Improper stoplamp switch adjustment
may cause brake drag, heat buildup and excessive
brake lining wear.
Disconnect the electrical connector from the stop lamp switch.
2. Rotate the switch counterclockwise and remove the switch from the switch retainer.
3. IMPORTANT: Do NOT depress the brake pedal assembly during the stop lamp switch
installation. This will cause a drag condition on the
brake.
Install the switch to the bracket by turning and pushing the switch until the switch bottoms on the
brake pedal.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Brake Light Switch >
Component Information > Diagrams > Page 17215
4. Connect the electrical connector to the stop lamp switch. 5. Inspect the stop lamps for proper
operation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Brake Light Switch >
Component Information > Diagrams > Page 17216
Brake Light Switch: Service and Repair
STOP LAMP SWITCH REPLACEMENT
ADJUSTMENT PROCEDURE
1. NOTE: Proper stoplamp switch adjustment is essential. Improper stoplamp switch adjustment
may cause brake drag, heat buildup and excessive
brake lining wear.
Disconnect the electrical connector from the stop lamp switch.
2. Rotate the switch counterclockwise and remove the switch from the switch retainer.
3. IMPORTANT: Do NOT depress the brake pedal assembly during the stop lamp switch
installation. This will cause a drag condition on the
brake.
Install the switch to the bracket by turning and pushing the switch until the switch bottoms on the
brake pedal.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Brake Light Switch >
Component Information > Diagrams > Page 17217
4. Connect the electrical connector to the stop lamp switch. 5. Inspect the stop lamps for proper
operation
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Combination Switch >
Component Information > Locations
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Combination Switch >
Component Information > Locations > Page 17221
Turn Signal/Multifunction Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Fog/Driving Lamp
Switch > Component Information > Diagrams
Fog Lamp Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Fog/Driving Lamp
Switch > Component Information > Diagrams > Page 17225
Fog/Driving Lamp Switch: Service and Repair
FOG LAMP SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Hazard Warning Switch
> Component Information > Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Hazard Warning Switch
> Component Information > Locations > Page 17229
Hazard Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Hazard Warning Switch
> Component Information > Locations > Page 17230
Hazard Warning Switch: Service and Repair
HAZARD WARNING SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Headlamp Switch >
Component Information > Diagrams
Headlamp Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Horn Switch >
Component Information > Locations
Steering Wheel Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Turn Signal Switch >
Component Information > Locations
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Turn Signal Switch >
Component Information > Locations > Page 17240
Turn Signal/Multifunction Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Turn Signal Switch >
Component Information > Service and Repair > Multifunction Turn Signal Switch Housing Replacement
Turn Signal Switch: Service and Repair Multifunction Turn Signal Switch Housing Replacement
Multifunction Turn Signal Switch Housing Replacement
Removal Procedure
1. Disconnect the negative battery cable. 2. Disable the SIR system. 3. Remove the steering wheel.
4. Remove the SIR coil. 5. Remove the steering column trim covers. 6. Depress the lock tabs on
the left and right multifunction levers. Remove the multifunction levers.
7. Disconnect the housing electrical connectors.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Component Information > Service and Repair > Multifunction Turn Signal Switch Housing Replacement > Page 17243
8. Remove the lock housing bolts. 9. Separate the ignition housing from the multifunction lever
bracket. Slide the bracket from the column.
Installation Procedure
1. Pre-assemble the lock housing and multifunction lever bracket. Hand-tighten the bolts, leaving
approximately 3.2 mm (0.125 in) gap at the bolt
ends.
Important: Ensure that the lock tab fully engages into the column slot.
2. Slide the bracket onto the column. 3. Hand-tighten the lower bolt until snug. 4. Hand-tighten the
upper bolt until snug.
Notice: Refer to Fastener Notice.
5. Tighten the lower bolt.
Tighten the bolt to 8 N.m (71 lb in)
6. Tighten the upper bolt.
Tighten the bolt to 8 N.m (71 lb in)
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Component Information > Service and Repair > Multifunction Turn Signal Switch Housing Replacement > Page 17244
7. Connect the ignition housing electrical connectors.
Important: Ensure that both locking tabs are seated.
8. Install the multifunction levers. 9. Install the upper and lower shrouds.
10. Install the SIR coil. 11. Install the steering wheel. 12. Enable the SIR system. 13. Connect the
negative battery cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Sensors and Switches - Lighting and Horns > Turn Signal Switch >
Component Information > Service and Repair > Multifunction Turn Signal Switch Housing Replacement > Page 17245
Turn Signal Switch: Service and Repair Turn Signal Multifunction Switch Replacement
Turn Signal Multifunction Switch Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Tail Lamp > Tail Lamp Relay > Component Information > Locations
Tail Lamp Relay: Locations
PCB Relays
This vehicle is equipped with the following PCB mounted relays. High Beam, Low Beam, DRL, Fog
Lamp, Park Lamp, Stop Lamp, and Horn relay. They are directly soldered to the underhood
fuseblock circuit board. A failure of one of these relays will require the whole underhood fuseblock
to be replaced.
Note: This relay is a Printed Circuit Board (PCB) Relay, and is not serviceable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Turn Signals > Combination Switch > Component Information >
Locations
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Turn Signals > Combination Switch > Component Information >
Locations > Page 17254
Turn Signal/Multifunction Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Turn Signals > Turn Signal Lamp > Turn Signal Bulb > Component
Information > Service and Repair > Park/Turn Signal Lamp Bulb Replacement (Equinox Park Lamp)
Turn Signal Bulb: Service and Repair Park/Turn Signal Lamp Bulb Replacement (Equinox Park
Lamp)
PARK/TURN SIGNAL LAMP BULB REPLACEMENT (EQUINOX PARK LAMP)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Turn Signals > Turn Signal Lamp > Turn Signal Bulb > Component
Information > Service and Repair > Park/Turn Signal Lamp Bulb Replacement (Equinox Park Lamp) > Page 17260
Turn Signal Bulb: Service and Repair Park/Turn Signal Lamp Bulb Replacement (Equinox Turn
Lamp)
PARK/TURN SIGNAL LAMP BULB REPLACEMENT (EQUINOX TURN LAMP)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Turn Signals > Turn Signal Lamp > Turn Signal Bulb > Component
Information > Service and Repair > Park/Turn Signal Lamp Bulb Replacement (Equinox Park Lamp) > Page 17261
Turn Signal Bulb: Service and Repair Rear Turn Signal Lamp Bulb Replacement (Equinox)
REAR TURN SIGNAL LAMP BULB REPLACEMENT (EQUINOX)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Turn Signals > Turn Signal Switch > Component Information >
Locations
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Turn Signals > Turn Signal Switch > Component Information >
Locations > Page 17265
Turn Signal/Multifunction Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Turn Signals > Turn Signal Switch > Component Information >
Service and Repair > Multifunction Turn Signal Switch Housing Replacement
Turn Signal Switch: Service and Repair Multifunction Turn Signal Switch Housing Replacement
Multifunction Turn Signal Switch Housing Replacement
Removal Procedure
1. Disconnect the negative battery cable. 2. Disable the SIR system. 3. Remove the steering wheel.
4. Remove the SIR coil. 5. Remove the steering column trim covers. 6. Depress the lock tabs on
the left and right multifunction levers. Remove the multifunction levers.
7. Disconnect the housing electrical connectors.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Turn Signals > Turn Signal Switch > Component Information >
Service and Repair > Multifunction Turn Signal Switch Housing Replacement > Page 17268
8. Remove the lock housing bolts. 9. Separate the ignition housing from the multifunction lever
bracket. Slide the bracket from the column.
Installation Procedure
1. Pre-assemble the lock housing and multifunction lever bracket. Hand-tighten the bolts, leaving
approximately 3.2 mm (0.125 in) gap at the bolt
ends.
Important: Ensure that the lock tab fully engages into the column slot.
2. Slide the bracket onto the column. 3. Hand-tighten the lower bolt until snug. 4. Hand-tighten the
upper bolt until snug.
Notice: Refer to Fastener Notice.
5. Tighten the lower bolt.
Tighten the bolt to 8 N.m (71 lb in)
6. Tighten the upper bolt.
Tighten the bolt to 8 N.m (71 lb in)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Service and Repair > Multifunction Turn Signal Switch Housing Replacement > Page 17269
7. Connect the ignition housing electrical connectors.
Important: Ensure that both locking tabs are seated.
8. Install the multifunction levers. 9. Install the upper and lower shrouds.
10. Install the SIR coil. 11. Install the steering wheel. 12. Enable the SIR system. 13. Connect the
negative battery cable.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Turn Signals > Turn Signal Switch > Component Information >
Service and Repair > Multifunction Turn Signal Switch Housing Replacement > Page 17270
Turn Signal Switch: Service and Repair Turn Signal Multifunction Switch Replacement
Turn Signal Multifunction Switch Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Vanity Lamp > Component Information > Diagrams > Diagram
Information and Instructions
Vanity Lamp: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Information and Instructions > Page 17275
Electrical Symbols Part 2
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Information and Instructions > Page 17276
Electrical Symbols Part 3
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Information and Instructions > Page 17277
Electrical Symbols Part 4
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Information and Instructions > Page 17278
Electrical Symbols Part 5
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Information and Instructions > Page 17279
Electrical Symbols Part 6
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Information and Instructions > Page 17280
Electrical Symbols Part 7
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Information and Instructions > Page 17281
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Information and Instructions > Page 17283
Vanity Lamp: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Information and Instructions > Page 17284
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Information and Instructions > Page 17285
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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Information and Instructions > Page 17286
resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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Information and Instructions > Page 17287
electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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Information and Instructions > Page 17288
cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Chevrolet Workshop Manuals > Lighting and Horns > Vanity Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17365
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Vanity Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17366
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Vanity Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17367
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Vanity Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17368
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Vanity Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17369
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Vanity Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17370
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Vanity Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17371
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Vanity Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17372
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Lighting and Horns > Vanity Lamp > Component Information > Diagrams > Diagram
Information and Instructions > Page 17373
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Technical Service
Bulletins > Customer Interest for Heated Glass Element: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information
Heated Glass Element: Customer Interest A/C - Window Defroster Contact/Tab Repair Information
INFORMATION
Bulletin No.: 03-08-48-006H
Date: April 11, 2011
Subject: Repair Information for Reconnection of Rear Window Defroster Contact or Tab
Models:
2000-2012 GM Passenger Cars and Trucks 2003-2009 HUMMER H2 2006-2010 HUMMER H3
2005-2009 Saab 9-7X 2007-2010 Opel GT 2007-2008 Daewoo G2X Equipped With Electric Rear
Window Defroster - RPO C49
Supercede: This bulletin is being revised to add the 2012 model year. Please discard Corporate
Bulletin Number 03-08-48-006G (Section 08 - Body and Accessories).
Repair Suggestions
Soldering Defroster Contact Tabs
In many cases the terminal tab will still be in the connector when you examine the vehicle. For
Chevrolet Tahoe, Suburban, GMC Yukon, and Cadillac Escalade vehicles (with moveable glass),
always replace the defroster tab (GM P/N 25916031) and the defroster electrical power connector
(P/N 12034110). For all other vehicles, reconnect the original defroster tab.
In most applications it is preferable to create a new solder connection to reattach a separated rear
defroster tab. If you take note of the steps below, it is possible to create a new solder joint that is
equal to, or stronger than, the original. The generic procedure below is not very time intensive, but
does include minor preparation work to create a good bonding surface. Be sure to follow each of
the steps, as combined they will produce the strongest bond possible. Please consider the
following before attempting the repair:
- Soldering introduces significant heat to the glass window of the vehicle. When performing the
re-connection of the tab, use only the heat required to do the job. Pre-heat the soldering iron and
have the solder in your other hand, ready to go, the moment you have enough heat to melt the
solder.
- If it is winter, bring the vehicle into the service garage and remove any snow from the back
window area. Allow time for the glass to warm to the temperature inside the building. Soldering
creates a "hot spot" in the glass. DO NOT solder on cold glass.
Caution Heating the glass excessively, or repeatedly without time to cool, may result in glass
breakage. ALWAYS wear safety glasses when performing this repair!
- You MUST use a silver-bearing solder to make the connection. DO NOT attempt this repair with
conventional tin/lead alloy solders. Silver bearing solder will adhere to the electrical buss bar,
making a strong and lasting repair.
- Protect surfaces under the area to be soldered. It is very easy to drip solder when performing this
repair. Placing a shop towel under the soldering area is sufficient protection.
Soldering Procedure
1. It is imperative to remove and replace the rear defroster electrical power connector by crimping a
new connector to the feed wire. The proper
connector P/N 12034110 can be found in the Packard Electrical Assortment, Tray 18, Position 5.
- Insert Delphi pick 12094430 to depress the locking tab on the terminal.
- Insert Delphi pick 12094429 to release the secondary lock tab.
Important DO NOT re-use the existing defroster tab on new-style full-size utility vehicles with
moveable glass.
2. Connect the electrical connector to the defroster tab. Fully engage the connector. An improperly
seated connector may cause excessive resistance
and impede the proper operation of the defroster. Add a small bead of solder to mate the electrical
connector tab to the defroster tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Technical Service
Bulletins > Customer Interest for Heated Glass Element: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information > Page 17383
3. Prepare the surface of the used defroster tab (not required for new tabs on new-style full-size
utility models) and the defroster buss bar with fine
grain (500 grit) sandpaper or Emery cloth. It is not necessary to remove all of the original solder,
but it should be scuffed sufficiently so that no oxidation is present. The photo above shows a close
up of a properly prepared surface.
Tip You may want to mask the glass around the contact area with tape. This is easy to do and will
allow you to safely prepare the contact surface without the risk of scratching the glass or the black
painted shading.
Important Most rear glass has a black painted masking around the edge of the glass. When
cleaning up the connection surface, be very careful not to damage the surface of the black shading
or the surface of the glass.
4. Wipe the newly prepared contact area with Kent Automotive* Acrysol(TM) (or equivalent) to
remove any residual oil or dirt.
Important
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Technical Service
Bulletins > Customer Interest for Heated Glass Element: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information > Page 17384
You MUST use a silver-bearing solder to make the solder joint. DO NOT attempt this repair with
conventional tin/lead alloy solders. Most suppliers have this type of solder available and it is
available nationally at Radio Shack(R)*. It is sold in several diameters and either are acceptable for
this repair.
5. For this step, it is permitted that two technicians be used if required. Heat the new connector on
the surface of the buss bar that is to be soldered.
Long nose pliers are suggested to hold the electrical connector and the defroster tab in place. Keep
the solder ready and begin flowing out the solder as soon as the melting temperature has been
reached. Tip If a single technician is attempting this repair, it is beneficial to wrap one turn of the
solder around the new contacts base. In this manner, as the melting point of the solder is reached,
a layer is deposited on the bottom side of the contact.
Important Try to align the new contact so that it is positioned with the same orientation as the
original contact.
6. The above illustrates an ideal finished solder joint. Additional stray solder will not harm the
performance of the bond; however, while it is unlikely
that customers may refer to the appearance of the rear window defroster and its components as a
positive styling feature of the vehicle interior, it is easy to elicit the opposite reaction due to a poor
cosmetic application.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Parts Information
Acrysol(TM) can be ordered directly from Kent Automotive at 1-800-654-6333 (in Canada,
1-800-563-1717).
Radio Shack(R) products can be found nationally at retail locations, www.radioshack.com, or at
1-800-843-7422.
All other parts can be ordered through GMSPO or SSPO.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Technical Service
Bulletins > Customer Interest for Heated Glass Element: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information > Page 17385
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Heated Glass Element: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information
Heated Glass Element: All Technical Service Bulletins A/C - Window Defroster Contact/Tab Repair
Information
INFORMATION
Bulletin No.: 03-08-48-006H
Date: April 11, 2011
Subject: Repair Information for Reconnection of Rear Window Defroster Contact or Tab
Models:
2000-2012 GM Passenger Cars and Trucks 2003-2009 HUMMER H2 2006-2010 HUMMER H3
2005-2009 Saab 9-7X 2007-2010 Opel GT 2007-2008 Daewoo G2X Equipped With Electric Rear
Window Defroster - RPO C49
Supercede: This bulletin is being revised to add the 2012 model year. Please discard Corporate
Bulletin Number 03-08-48-006G (Section 08 - Body and Accessories).
Repair Suggestions
Soldering Defroster Contact Tabs
In many cases the terminal tab will still be in the connector when you examine the vehicle. For
Chevrolet Tahoe, Suburban, GMC Yukon, and Cadillac Escalade vehicles (with moveable glass),
always replace the defroster tab (GM P/N 25916031) and the defroster electrical power connector
(P/N 12034110). For all other vehicles, reconnect the original defroster tab.
In most applications it is preferable to create a new solder connection to reattach a separated rear
defroster tab. If you take note of the steps below, it is possible to create a new solder joint that is
equal to, or stronger than, the original. The generic procedure below is not very time intensive, but
does include minor preparation work to create a good bonding surface. Be sure to follow each of
the steps, as combined they will produce the strongest bond possible. Please consider the
following before attempting the repair:
- Soldering introduces significant heat to the glass window of the vehicle. When performing the
re-connection of the tab, use only the heat required to do the job. Pre-heat the soldering iron and
have the solder in your other hand, ready to go, the moment you have enough heat to melt the
solder.
- If it is winter, bring the vehicle into the service garage and remove any snow from the back
window area. Allow time for the glass to warm to the temperature inside the building. Soldering
creates a "hot spot" in the glass. DO NOT solder on cold glass.
Caution Heating the glass excessively, or repeatedly without time to cool, may result in glass
breakage. ALWAYS wear safety glasses when performing this repair!
- You MUST use a silver-bearing solder to make the connection. DO NOT attempt this repair with
conventional tin/lead alloy solders. Silver bearing solder will adhere to the electrical buss bar,
making a strong and lasting repair.
- Protect surfaces under the area to be soldered. It is very easy to drip solder when performing this
repair. Placing a shop towel under the soldering area is sufficient protection.
Soldering Procedure
1. It is imperative to remove and replace the rear defroster electrical power connector by crimping a
new connector to the feed wire. The proper
connector P/N 12034110 can be found in the Packard Electrical Assortment, Tray 18, Position 5.
- Insert Delphi pick 12094430 to depress the locking tab on the terminal.
- Insert Delphi pick 12094429 to release the secondary lock tab.
Important DO NOT re-use the existing defroster tab on new-style full-size utility vehicles with
moveable glass.
2. Connect the electrical connector to the defroster tab. Fully engage the connector. An improperly
seated connector may cause excessive resistance
and impede the proper operation of the defroster. Add a small bead of solder to mate the electrical
connector tab to the defroster tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Heated Glass Element: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information > Page 17391
3. Prepare the surface of the used defroster tab (not required for new tabs on new-style full-size
utility models) and the defroster buss bar with fine
grain (500 grit) sandpaper or Emery cloth. It is not necessary to remove all of the original solder,
but it should be scuffed sufficiently so that no oxidation is present. The photo above shows a close
up of a properly prepared surface.
Tip You may want to mask the glass around the contact area with tape. This is easy to do and will
allow you to safely prepare the contact surface without the risk of scratching the glass or the black
painted shading.
Important Most rear glass has a black painted masking around the edge of the glass. When
cleaning up the connection surface, be very careful not to damage the surface of the black shading
or the surface of the glass.
4. Wipe the newly prepared contact area with Kent Automotive* Acrysol(TM) (or equivalent) to
remove any residual oil or dirt.
Important
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Heated Glass Element: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information > Page 17392
You MUST use a silver-bearing solder to make the solder joint. DO NOT attempt this repair with
conventional tin/lead alloy solders. Most suppliers have this type of solder available and it is
available nationally at Radio Shack(R)*. It is sold in several diameters and either are acceptable for
this repair.
5. For this step, it is permitted that two technicians be used if required. Heat the new connector on
the surface of the buss bar that is to be soldered.
Long nose pliers are suggested to hold the electrical connector and the defroster tab in place. Keep
the solder ready and begin flowing out the solder as soon as the melting temperature has been
reached. Tip If a single technician is attempting this repair, it is beneficial to wrap one turn of the
solder around the new contacts base. In this manner, as the melting point of the solder is reached,
a layer is deposited on the bottom side of the contact.
Important Try to align the new contact so that it is positioned with the same orientation as the
original contact.
6. The above illustrates an ideal finished solder joint. Additional stray solder will not harm the
performance of the bond; however, while it is unlikely
that customers may refer to the appearance of the rear window defroster and its components as a
positive styling feature of the vehicle interior, it is easy to elicit the opposite reaction due to a poor
cosmetic application.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Parts Information
Acrysol(TM) can be ordered directly from Kent Automotive at 1-800-654-6333 (in Canada,
1-800-563-1717).
Radio Shack(R) products can be found nationally at retail locations, www.radioshack.com, or at
1-800-843-7422.
All other parts can be ordered through GMSPO or SSPO.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Heated Glass Element: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information > Page 17393
For vehicles repaired under warranty, use the table.
Disclaimer
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Heated Glass Element: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
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Electrical Symbols Part 2
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Electrical Symbols Part 3
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Electrical Symbols Part 4
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Electrical Symbols Part 5
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Electrical Symbols Part 6
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Electrical Symbols Part 7
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Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
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All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
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Heated Glass Element: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
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Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
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11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
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Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
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5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
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Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
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Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Diagrams >
Diagram Information and Instructions > Page 17491
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Diagrams >
Diagram Information and Instructions > Page 17492
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Diagrams >
Diagram Information and Instructions > Page 17493
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Diagrams >
Diagram Information and Instructions > Page 17494
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Diagrams >
Diagram Information and Instructions > Page 17495
Heated Glass Element: Connector Views
Rear Defogger Grid C1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Diagrams >
Diagram Information and Instructions > Page 17496
Rear Defogger Grid C2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Testing and
Inspection > Symptom Related Diagnostic Procedures
Heated Glass Element: Symptom Related Diagnostic Procedures
REAR WINDOW DEFOGGER INOPERATIVE
DIAGNOSTIC FAULT INFORMATION
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure See:
Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check Vehicle.
CIRCUIT/SYSTEM DESCRIPTION
When you depress the rear defogger button, voltage is supplied to the DEFOG relay coil and the
HVAC control module also illuminates the rear window defogger indicator. Battery positive voltage
is supplied at all times to the DEFOG relay switched input and the DEFOG relay coil is always
grounded. This allows battery positive voltage from the relay switched input through the switch
contacts and out the relay switched output to the rear window defogger. Ground for the rear
defogger grid is provided by G401.
When you start the engine and press the rear defogger switch for the first time, the defogger cycle
lasts for 15 minutes. Further operation results in 7.5 minute defogger cycles. The defogger cycle
resets to 15 minutes when you cycle the ignition to the OFF position and then to the ON position.
CIRCUIT/SYSTEM VERIFICATION
1. Ignition ON, observe the operation of the Rear Defogger Grid while pressing the Rear Defogger
Switch. The Rear Defogger Grid should
ACTIVATE and DEACTIVATE when changing between commanded states.
2. Command the rear window defogger indicator ON and OFF with the scan tool. The rear window
defogger indicator should turn ON and OFF when
changing between the commanded states. If the Defogger Indicator does not illuminate, replace the HVAC control module.
CIRCUIT/SYSTEM TESTING
1. Ignition OFF, disconnect the REAR DEFOG relay. 2. Ignition OFF, test for less than 1.0 ohm of
resistance between the relay coil ground circuit terminal 25 and ground.
- If greater than the specified range, test for an open/high resistance.
3. Ignition ON, verify that a test lamp does not illuminate between the relay controlled output circuit
terminal 46 and ground.
- If the test lamp illuminates, test the control circuit for a short to voltage.
4. Verify that a test lamp illuminates between the relay switch B+ circuit terminal 43 and ground.
- If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high
resistance. If the circuit tests normal and the RR DEFOG circuit fuse is open, test the relay
controlled output circuit terminal 46 for a short to ground
5. Ignition OFF, disconnect the harness connectors C1 and C2 at the Rear Defogger Grid. 6.
Ignition OFF, test for less than 1.0 ohm of resistance between the Rear Defogger Grid ground
circuit terminal 1 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
7. Connect the harness connectors at the Rear Defogger Grid. 8. Ignition ON, connect a 30-A
fused jumper wire between the relay switch B+ circuit terminal 43 and the relay controlled output
circuit terminal 46.
Verify the Rear Defogger Grid is activated. If the Rear Defogger Grid does not activate, test the control circuit for an open/high resistance. If
the circuit tests normal, test or replace the Rear Defogger Grid.
9. Connect a test lamp between the relay coil control circuit terminal 39 and the relay coil ground
circuit terminal 25.
10. Command the Rear Defogger Grid ON and OFF by pressing the Rear Defogger Switch. The
test lamp should turn ON and OFF when changing
between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal,
replace the HVAC Control Module.
- If the test lamp is always OFF, test the control circuit for a short to ground or an open/high
resistance. If the circuit tests normal, replace the HVAC Control Module.
11. If all circuits test normal, test or replace the DEFOG Relay.
COMPONENT TESTING
Relay Test
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Testing and
Inspection > Symptom Related Diagnostic Procedures > Page 17499
1. Ignition OFF, disconnect the REAR DEFOG relay. 2. Test for 60-180 ohms of resistance
between terminals 85 and 86.
- If the resistance is not within the specified range, replace the relay.
3. Test for infinite resistance between the following terminals:
- 30 and 86
- 30 and 87
- 30 and 85
- 85 and 87
- If not the specified value, replace the relay.
4. Install a 25-amp fused jumper wire between relay terminal 85 and 12 volts. Install a jumper wire
between relay terminal 86 and ground. Test for
less than 2 ohms of resistance between terminals 30 and 87. If greater than the specified range, replace the relay.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Body Control Module Replacement
- HVAC Control Module Replacement
- Liftgate Window Replacement
- Relay Replacement (Attached to Wire Harness) Relay Replacement (Within an Electrical Center)
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic
Trouble Code Tests and Associated Procedures/Verification Tests and Procedures
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Heated Glass Element > Component Information > Testing and
Inspection > Symptom Related Diagnostic Procedures > Page 17500
Heated Glass Element: Component Tests and General Diagnostics
DEFOGGER GRID LINES DIAGNOSIS
IMPORTANT: This test is for reference only. A grid line fault requires rear window replacement.
1. Start the engine. 2. Activate the rear window defogger system. 3. Connect a test lamp to a good
ground.
4. IMPORTANT: The test lamp brilliance will decrease proportionately to the increased resistance
in the grid line as the probe is moved from the
battery positive bus wire to the ground bus wire. The test lamp brilliance may vary from one window
to another.
Move the test lamp probe from the positive to the negative wire. If the test lamp shows full brilliance at both ends of the grid lines, inspect for an open or poor
connection in the ground circuit of the rear window defogger grid.
- If the test lamp goes out, test the grid line in at least 2 places to eliminate the possibility of
bridging the open in the grid line.
5. Once the open is located, replace the rear window.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Sensors and Switches - Windows and Glass > Power Window Switch
> Component Information > Locations
Power Window Switch: Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Sensors and Switches - Windows and Glass > Power Window Switch
> Component Information > Locations > Page 17505
LR Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Sensors and Switches - Windows and Glass > Power Window Switch
> Component Information > Locations > Page 17506
RR Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Sensors and Switches - Windows and Glass > Power Window Switch
> Component Information > Locations > Page 17507
Power Window Switch: Diagrams
Window Switch - Driver
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Sensors and Switches - Windows and Glass > Power Window Switch
> Component Information > Locations > Page 17508
Window Switch - Front Passenger
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Sensors and Switches - Windows and Glass > Power Window Switch
> Component Information > Service and Repair > Power Window Switch Replacement
Power Window Switch: Service and Repair Power Window Switch Replacement
POWER WINDOW SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Sensors and Switches - Windows and Glass > Power Window Switch
> Component Information > Service and Repair > Power Window Switch Replacement > Page 17511
Power Window Switch: Service and Repair Rear Side Door Window Switch Replacement
REAR SIDE DOOR WINDOW SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Power Window Motor > Front Door Window Motor >
Component Information > Service and Repair
Front Door Window Motor: Service and Repair
FRONT SIDE DOOR WINDOW REGULATOR MOTOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Power Window Motor > Rear Door Window Motor >
Component Information > Service and Repair
Rear Door Window Motor: Service and Repair
REAR SIDE DOOR WINDOW REGULATOR MOTOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Power Window Switch > Component Information >
Locations
Power Window Switch: Locations
Instrument Panel
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Power Window Switch > Component Information >
Locations > Page 17523
LR Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Power Window Switch > Component Information >
Locations > Page 17524
RR Door
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Power Window Switch > Component Information >
Locations > Page 17525
Power Window Switch: Diagrams
Window Switch - Driver
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Power Window Switch > Component Information >
Locations > Page 17526
Window Switch - Front Passenger
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Power Window Switch > Component Information >
Service and Repair > Power Window Switch Replacement
Power Window Switch: Service and Repair Power Window Switch Replacement
POWER WINDOW SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Power Window Switch > Component Information >
Service and Repair > Power Window Switch Replacement > Page 17529
Power Window Switch: Service and Repair Rear Side Door Window Switch Replacement
REAR SIDE DOOR WINDOW SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Back Window Glass > Component
Information > Technical Service Bulletins > Customer Interest: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information
Back Window Glass: Customer Interest A/C - Window Defroster Contact/Tab Repair Information
INFORMATION
Bulletin No.: 03-08-48-006H
Date: April 11, 2011
Subject: Repair Information for Reconnection of Rear Window Defroster Contact or Tab
Models:
2000-2012 GM Passenger Cars and Trucks 2003-2009 HUMMER H2 2006-2010 HUMMER H3
2005-2009 Saab 9-7X 2007-2010 Opel GT 2007-2008 Daewoo G2X Equipped With Electric Rear
Window Defroster - RPO C49
Supercede: This bulletin is being revised to add the 2012 model year. Please discard Corporate
Bulletin Number 03-08-48-006G (Section 08 - Body and Accessories).
Repair Suggestions
Soldering Defroster Contact Tabs
In many cases the terminal tab will still be in the connector when you examine the vehicle. For
Chevrolet Tahoe, Suburban, GMC Yukon, and Cadillac Escalade vehicles (with moveable glass),
always replace the defroster tab (GM P/N 25916031) and the defroster electrical power connector
(P/N 12034110). For all other vehicles, reconnect the original defroster tab.
In most applications it is preferable to create a new solder connection to reattach a separated rear
defroster tab. If you take note of the steps below, it is possible to create a new solder joint that is
equal to, or stronger than, the original. The generic procedure below is not very time intensive, but
does include minor preparation work to create a good bonding surface. Be sure to follow each of
the steps, as combined they will produce the strongest bond possible. Please consider the
following before attempting the repair:
- Soldering introduces significant heat to the glass window of the vehicle. When performing the
re-connection of the tab, use only the heat required to do the job. Pre-heat the soldering iron and
have the solder in your other hand, ready to go, the moment you have enough heat to melt the
solder.
- If it is winter, bring the vehicle into the service garage and remove any snow from the back
window area. Allow time for the glass to warm to the temperature inside the building. Soldering
creates a "hot spot" in the glass. DO NOT solder on cold glass.
Caution Heating the glass excessively, or repeatedly without time to cool, may result in glass
breakage. ALWAYS wear safety glasses when performing this repair!
- You MUST use a silver-bearing solder to make the connection. DO NOT attempt this repair with
conventional tin/lead alloy solders. Silver bearing solder will adhere to the electrical buss bar,
making a strong and lasting repair.
- Protect surfaces under the area to be soldered. It is very easy to drip solder when performing this
repair. Placing a shop towel under the soldering area is sufficient protection.
Soldering Procedure
1. It is imperative to remove and replace the rear defroster electrical power connector by crimping a
new connector to the feed wire. The proper
connector P/N 12034110 can be found in the Packard Electrical Assortment, Tray 18, Position 5.
- Insert Delphi pick 12094430 to depress the locking tab on the terminal.
- Insert Delphi pick 12094429 to release the secondary lock tab.
Important DO NOT re-use the existing defroster tab on new-style full-size utility vehicles with
moveable glass.
2. Connect the electrical connector to the defroster tab. Fully engage the connector. An improperly
seated connector may cause excessive resistance
and impede the proper operation of the defroster. Add a small bead of solder to mate the electrical
connector tab to the defroster tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Back Window Glass > Component
Information > Technical Service Bulletins > Customer Interest: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information > Page 17539
3. Prepare the surface of the used defroster tab (not required for new tabs on new-style full-size
utility models) and the defroster buss bar with fine
grain (500 grit) sandpaper or Emery cloth. It is not necessary to remove all of the original solder,
but it should be scuffed sufficiently so that no oxidation is present. The photo above shows a close
up of a properly prepared surface.
Tip You may want to mask the glass around the contact area with tape. This is easy to do and will
allow you to safely prepare the contact surface without the risk of scratching the glass or the black
painted shading.
Important Most rear glass has a black painted masking around the edge of the glass. When
cleaning up the connection surface, be very careful not to damage the surface of the black shading
or the surface of the glass.
4. Wipe the newly prepared contact area with Kent Automotive* Acrysol(TM) (or equivalent) to
remove any residual oil or dirt.
Important
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Back Window Glass > Component
Information > Technical Service Bulletins > Customer Interest: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information > Page 17540
You MUST use a silver-bearing solder to make the solder joint. DO NOT attempt this repair with
conventional tin/lead alloy solders. Most suppliers have this type of solder available and it is
available nationally at Radio Shack(R)*. It is sold in several diameters and either are acceptable for
this repair.
5. For this step, it is permitted that two technicians be used if required. Heat the new connector on
the surface of the buss bar that is to be soldered.
Long nose pliers are suggested to hold the electrical connector and the defroster tab in place. Keep
the solder ready and begin flowing out the solder as soon as the melting temperature has been
reached. Tip If a single technician is attempting this repair, it is beneficial to wrap one turn of the
solder around the new contacts base. In this manner, as the melting point of the solder is reached,
a layer is deposited on the bottom side of the contact.
Important Try to align the new contact so that it is positioned with the same orientation as the
original contact.
6. The above illustrates an ideal finished solder joint. Additional stray solder will not harm the
performance of the bond; however, while it is unlikely
that customers may refer to the appearance of the rear window defroster and its components as a
positive styling feature of the vehicle interior, it is easy to elicit the opposite reaction due to a poor
cosmetic application.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Parts Information
Acrysol(TM) can be ordered directly from Kent Automotive at 1-800-654-6333 (in Canada,
1-800-563-1717).
Radio Shack(R) products can be found nationally at retail locations, www.radioshack.com, or at
1-800-843-7422.
All other parts can be ordered through GMSPO or SSPO.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Back Window Glass > Component
Information > Technical Service Bulletins > Customer Interest: > 03-08-48-006H > Apr > 11 > A/C - Window Defroster
Contact/Tab Repair Information > Page 17541
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Back Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Back Window Glass: > 03-08-48-006H > Apr >
11 > A/C - Window Defroster Contact/Tab Repair Information
Back Window Glass: All Technical Service Bulletins A/C - Window Defroster Contact/Tab Repair
Information
INFORMATION
Bulletin No.: 03-08-48-006H
Date: April 11, 2011
Subject: Repair Information for Reconnection of Rear Window Defroster Contact or Tab
Models:
2000-2012 GM Passenger Cars and Trucks 2003-2009 HUMMER H2 2006-2010 HUMMER H3
2005-2009 Saab 9-7X 2007-2010 Opel GT 2007-2008 Daewoo G2X Equipped With Electric Rear
Window Defroster - RPO C49
Supercede: This bulletin is being revised to add the 2012 model year. Please discard Corporate
Bulletin Number 03-08-48-006G (Section 08 - Body and Accessories).
Repair Suggestions
Soldering Defroster Contact Tabs
In many cases the terminal tab will still be in the connector when you examine the vehicle. For
Chevrolet Tahoe, Suburban, GMC Yukon, and Cadillac Escalade vehicles (with moveable glass),
always replace the defroster tab (GM P/N 25916031) and the defroster electrical power connector
(P/N 12034110). For all other vehicles, reconnect the original defroster tab.
In most applications it is preferable to create a new solder connection to reattach a separated rear
defroster tab. If you take note of the steps below, it is possible to create a new solder joint that is
equal to, or stronger than, the original. The generic procedure below is not very time intensive, but
does include minor preparation work to create a good bonding surface. Be sure to follow each of
the steps, as combined they will produce the strongest bond possible. Please consider the
following before attempting the repair:
- Soldering introduces significant heat to the glass window of the vehicle. When performing the
re-connection of the tab, use only the heat required to do the job. Pre-heat the soldering iron and
have the solder in your other hand, ready to go, the moment you have enough heat to melt the
solder.
- If it is winter, bring the vehicle into the service garage and remove any snow from the back
window area. Allow time for the glass to warm to the temperature inside the building. Soldering
creates a "hot spot" in the glass. DO NOT solder on cold glass.
Caution Heating the glass excessively, or repeatedly without time to cool, may result in glass
breakage. ALWAYS wear safety glasses when performing this repair!
- You MUST use a silver-bearing solder to make the connection. DO NOT attempt this repair with
conventional tin/lead alloy solders. Silver bearing solder will adhere to the electrical buss bar,
making a strong and lasting repair.
- Protect surfaces under the area to be soldered. It is very easy to drip solder when performing this
repair. Placing a shop towel under the soldering area is sufficient protection.
Soldering Procedure
1. It is imperative to remove and replace the rear defroster electrical power connector by crimping a
new connector to the feed wire. The proper
connector P/N 12034110 can be found in the Packard Electrical Assortment, Tray 18, Position 5.
- Insert Delphi pick 12094430 to depress the locking tab on the terminal.
- Insert Delphi pick 12094429 to release the secondary lock tab.
Important DO NOT re-use the existing defroster tab on new-style full-size utility vehicles with
moveable glass.
2. Connect the electrical connector to the defroster tab. Fully engage the connector. An improperly
seated connector may cause excessive resistance
and impede the proper operation of the defroster. Add a small bead of solder to mate the electrical
connector tab to the defroster tab.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Back Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Back Window Glass: > 03-08-48-006H > Apr >
11 > A/C - Window Defroster Contact/Tab Repair Information > Page 17547
3. Prepare the surface of the used defroster tab (not required for new tabs on new-style full-size
utility models) and the defroster buss bar with fine
grain (500 grit) sandpaper or Emery cloth. It is not necessary to remove all of the original solder,
but it should be scuffed sufficiently so that no oxidation is present. The photo above shows a close
up of a properly prepared surface.
Tip You may want to mask the glass around the contact area with tape. This is easy to do and will
allow you to safely prepare the contact surface without the risk of scratching the glass or the black
painted shading.
Important Most rear glass has a black painted masking around the edge of the glass. When
cleaning up the connection surface, be very careful not to damage the surface of the black shading
or the surface of the glass.
4. Wipe the newly prepared contact area with Kent Automotive* Acrysol(TM) (or equivalent) to
remove any residual oil or dirt.
Important
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Back Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Back Window Glass: > 03-08-48-006H > Apr >
11 > A/C - Window Defroster Contact/Tab Repair Information > Page 17548
You MUST use a silver-bearing solder to make the solder joint. DO NOT attempt this repair with
conventional tin/lead alloy solders. Most suppliers have this type of solder available and it is
available nationally at Radio Shack(R)*. It is sold in several diameters and either are acceptable for
this repair.
5. For this step, it is permitted that two technicians be used if required. Heat the new connector on
the surface of the buss bar that is to be soldered.
Long nose pliers are suggested to hold the electrical connector and the defroster tab in place. Keep
the solder ready and begin flowing out the solder as soon as the melting temperature has been
reached. Tip If a single technician is attempting this repair, it is beneficial to wrap one turn of the
solder around the new contacts base. In this manner, as the melting point of the solder is reached,
a layer is deposited on the bottom side of the contact.
Important Try to align the new contact so that it is positioned with the same orientation as the
original contact.
6. The above illustrates an ideal finished solder joint. Additional stray solder will not harm the
performance of the bond; however, while it is unlikely
that customers may refer to the appearance of the rear window defroster and its components as a
positive styling feature of the vehicle interior, it is easy to elicit the opposite reaction due to a poor
cosmetic application.
*We believe this source and their products to be reliable. There may be additional manufacturers of
such products/materials. General Motors does not endorse, indicate any preference for, or assume
any responsibility for the products or material from this firm or for any such items that may be
available from other sources.
Parts Information
Acrysol(TM) can be ordered directly from Kent Automotive at 1-800-654-6333 (in Canada,
1-800-563-1717).
Radio Shack(R) products can be found nationally at retail locations, www.radioshack.com, or at
1-800-843-7422.
All other parts can be ordered through GMSPO or SSPO.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use:
Warranty Information (Saab U.S. Models)
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Back Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Back Window Glass: > 03-08-48-006H > Apr >
11 > A/C - Window Defroster Contact/Tab Repair Information > Page 17549
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Back Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Back Window Glass: > 00-08-48-005D > Sep
> 10 > Body - Vehicle Glass Distortion Information
Back Window Glass: All Technical Service Bulletins Body - Vehicle Glass Distortion Information
INFORMATION
Bulletin No.: 00-08-48-005D
Date: September 10, 2010
Subject: Distortion in Outer Surface of Vehicle Glass
Models:
2011 and Prior GM Passenger Cars and Trucks 2009 and Prior HUMMER H2 2010 and Prior
HUMMER H3 2005-2009 Saab 9-7X 2010 and Prior Saturn
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 00-08-48-005C (Section 08 - Body and Accessories).
Distortion in the outer surface of the windshield glass, door glass or backlite glass may appear after
the vehicle has:
- Accumulated some mileage.
- Been frequently washed in automatic car washes, particularly "touchless" car washes.
This distortion may look like a subtle orange peel pattern, or may look like a drip or sag etched into
the surface of the glass.
Some car wash solutions contain a buffered solution of hydrofluoric acid which is used to clean the
glass. This should not cause a problem if used in the correct concentration. However, if not used
correctly, hydrofluoric acid will attack the glass, and over time, will cause visual distortion in the
outer surface of the glass which cannot be removed by scraping or polishing.
If this condition is suspected, look at the area of the windshield under the wipers or below the belt
seal on the side glass. The area of the glass below the wipers or belt seal will not be affected and
what looks like a drip or sag may be apparent at the edge of the wiper or belt seal. You may also
see a line on the glass where the wiper blade or the belt seal contacts the glass.
Important The repair will require replacing the affected glass and is not a result of a defect in
material or workmanship. Therefore, is not covered by New Vehicle Warranty.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Back Window Glass > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Back Window Glass: > 00-08-48-005D > Sep > 10
> Body - Vehicle Glass Distortion Information
Back Window Glass: All Technical Service Bulletins Body - Vehicle Glass Distortion Information
INFORMATION
Bulletin No.: 00-08-48-005D
Date: September 10, 2010
Subject: Distortion in Outer Surface of Vehicle Glass
Models:
2011 and Prior GM Passenger Cars and Trucks 2009 and Prior HUMMER H2 2010 and Prior
HUMMER H3 2005-2009 Saab 9-7X 2010 and Prior Saturn
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 00-08-48-005C (Section 08 - Body and Accessories).
Distortion in the outer surface of the windshield glass, door glass or backlite glass may appear after
the vehicle has:
- Accumulated some mileage.
- Been frequently washed in automatic car washes, particularly "touchless" car washes.
This distortion may look like a subtle orange peel pattern, or may look like a drip or sag etched into
the surface of the glass.
Some car wash solutions contain a buffered solution of hydrofluoric acid which is used to clean the
glass. This should not cause a problem if used in the correct concentration. However, if not used
correctly, hydrofluoric acid will attack the glass, and over time, will cause visual distortion in the
outer surface of the glass which cannot be removed by scraping or polishing.
If this condition is suspected, look at the area of the windshield under the wipers or below the belt
seal on the side glass. The area of the glass below the wipers or belt seal will not be affected and
what looks like a drip or sag may be apparent at the edge of the wiper or belt seal. You may also
see a line on the glass where the wiper blade or the belt seal contacts the glass.
Important The repair will require replacing the affected glass and is not a result of a defect in
material or workmanship. Therefore, is not covered by New Vehicle Warranty.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Front Corner Window Glass >
Component Information > Technical Service Bulletins > Body - Vehicle Glass Distortion Information
Front Corner Window Glass: Technical Service Bulletins Body - Vehicle Glass Distortion
Information
INFORMATION
Bulletin No.: 00-08-48-005D
Date: September 10, 2010
Subject: Distortion in Outer Surface of Vehicle Glass
Models:
2011 and Prior GM Passenger Cars and Trucks 2009 and Prior HUMMER H2 2010 and Prior
HUMMER H3 2005-2009 Saab 9-7X 2010 and Prior Saturn
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 00-08-48-005C (Section 08 - Body and Accessories).
Distortion in the outer surface of the windshield glass, door glass or backlite glass may appear after
the vehicle has:
- Accumulated some mileage.
- Been frequently washed in automatic car washes, particularly "touchless" car washes.
This distortion may look like a subtle orange peel pattern, or may look like a drip or sag etched into
the surface of the glass.
Some car wash solutions contain a buffered solution of hydrofluoric acid which is used to clean the
glass. This should not cause a problem if used in the correct concentration. However, if not used
correctly, hydrofluoric acid will attack the glass, and over time, will cause visual distortion in the
outer surface of the glass which cannot be removed by scraping or polishing.
If this condition is suspected, look at the area of the windshield under the wipers or below the belt
seal on the side glass. The area of the glass below the wipers or belt seal will not be affected and
what looks like a drip or sag may be apparent at the edge of the wiper or belt seal. You may also
see a line on the glass where the wiper blade or the belt seal contacts the glass.
Important The repair will require replacing the affected glass and is not a result of a defect in
material or workmanship. Therefore, is not covered by New Vehicle Warranty.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Front Door Window Glass > System
Information > Technical Service Bulletins > Body - Vehicle Glass Distortion Information
Front Door Window Glass: Technical Service Bulletins Body - Vehicle Glass Distortion Information
INFORMATION
Bulletin No.: 00-08-48-005D
Date: September 10, 2010
Subject: Distortion in Outer Surface of Vehicle Glass
Models:
2011 and Prior GM Passenger Cars and Trucks 2009 and Prior HUMMER H2 2010 and Prior
HUMMER H3 2005-2009 Saab 9-7X 2010 and Prior Saturn
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 00-08-48-005C (Section 08 - Body and Accessories).
Distortion in the outer surface of the windshield glass, door glass or backlite glass may appear after
the vehicle has:
- Accumulated some mileage.
- Been frequently washed in automatic car washes, particularly "touchless" car washes.
This distortion may look like a subtle orange peel pattern, or may look like a drip or sag etched into
the surface of the glass.
Some car wash solutions contain a buffered solution of hydrofluoric acid which is used to clean the
glass. This should not cause a problem if used in the correct concentration. However, if not used
correctly, hydrofluoric acid will attack the glass, and over time, will cause visual distortion in the
outer surface of the glass which cannot be removed by scraping or polishing.
If this condition is suspected, look at the area of the windshield under the wipers or below the belt
seal on the side glass. The area of the glass below the wipers or belt seal will not be affected and
what looks like a drip or sag may be apparent at the edge of the wiper or belt seal. You may also
see a line on the glass where the wiper blade or the belt seal contacts the glass.
Important The repair will require replacing the affected glass and is not a result of a defect in
material or workmanship. Therefore, is not covered by New Vehicle Warranty.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Front Door Window Glass > System
Information > Technical Service Bulletins > Body - Vehicle Glass Distortion Information > Page 17567
Front Door Window Glass: Technical Service Bulletins Body - Side Window Chipping Information
INFORMATION
Bulletin No.: 06-08-64-001B
Date: October 20, 2009
Subject: Information on Side Door Window Glass Chipping Caused by Hanging Vehicle Key Lock
Box
Models:
2010 and Prior Passenger Cars and Trucks (Including Saturn) 2010 and Prior HUMMER H2, H3
2009 and Prior Saab 9-7X
Supercede: This bulletin is being revised to add vehicles and model years and to include all types of
door window glass. Please discard Corporate Bulletin Number 06-08-64-001A (Section 08 - Body &
Accessories).
- In several warranty parts review cases, side door window glass was observed with a chip or chips
on the top side of the window glass. Dealer contacts confirmed that they use a vehicle key lock box
on the front side door window glass.
- A random selection of side door glass returns will be conducted to confirm adherence. If a side
door glass is discovered with a chip or chips in the location previously described, the side door
glass will be returned to the dealership for debit.
Example of Side Door Glass
- DO NOT place a vehicle key lock box on a side door window glass.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Front Door Window Glass > System
Information > Technical Service Bulletins > Body - Vehicle Glass Distortion Information > Page 17568
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass
Technical Service Bulletin # 07154B Date: 070627
Recall - Windshield/Liftgate Glass/Side Stationary Glass
Subject: F/CMVSS Noncompliance - Windshield/Liftgate Glass/Side Stationary Glass Retention Replace Glass # 07154B - (06/27/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
THE LABOR OPERATION CODE FOR THE FLOOR PLAN REIMBURSEMENT AND THE
SECOND PID HAVE BEEN REVISED. IN ADDITION, THE PART INFORMATION SECTION HAS
BEEN REVISED TO ASSIST IN DETERMINING IF THE RIGHT QUARTER WINDOW IS
EQUIPPED WITH AN ANTENNA.
PLEASE DISCARD ALL COPIES OF BULLETIN 07154A, ISSUED JUNE 2007.
Vehicles involved in this recall were placed on Stop Delivery on Thursday, May 31, 2007, via
message # WIL20070008 (US) or email message (Canada).
^ Dealers who have more than one vehicle in inventory will be contacted by GM to arrange for
return of the vehicles to GM. Unsold vehicles are not to be released to customers. These vehicles
will be listed in the report titled, "Vehicles Returned to GM", sent with the Administrative Message
releasing this bulletin.
^ Dealers who have only one vehicle in inventory are to replace the windshield, liftgate glass, and
side quarter (stationary) glass following the instructions contained in this bulletin. These vehicles
will be listed in the report titled, "Dealer Repaired Vehicles", sent with the Administrative Message
releasing this bulletin.
^ Customer vehicles, export vehicles, and certain vehicles located in remote areas are to have the
windshield, liftgate glass, and side quarter (stationary) glass replaced following the instructions
contained in this bulletin. These vehicles will be listed in the report titled, "Dealer Repaired
Vehicles", sent with the Administrative Message releasing this bulletin.
See details in the bulletin for more information.
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent model
vehicles fail to conform to Federal/Canada Motor Vehicle Safety Standard (MVSS) 212, Windshield
Mounting. On some of these vehicles, an incorrect primer may have been used when installing the
windshield. In the event of a crash, the windshield may not be retained to the extent required by the
Standard, increasing the risk of personal injuries to the vehicle occupants.
The same primer may have also been applied to the liftgate glass and the side stationary glass.
Correction
For vehicles in customer possession, export vehicles, certain vehicles located in remote areas, and
inventory vehicles identified in the "Dealer Repaired Vehicles" report, dealers are to replace the
windshield, liftgate glass, and the side stationary glass. A listing of vehicles to repair, titled "Dealer
Repaired Vehicles", has been sent in the Administrative Message releasing this bulletin.
For vehicles in dealer inventory (greater than one), dealers are to hold the vehicle. The General
Motors Dealer Business Center will contact dealers to arrange for return of the vehicles to GM. The
vehicle transport company that normally services the dealership will facilitate the vehicle pick up.
The vehicles will then be inspected, repaired if necessary, and returned to dealers as quickly as
possible. A listing of vehicles to be returned to GM, titled "Vehicles Returned to GM", has been sent
in the Administrative Message releasing this bulletin.
Each vehicle will be returned with a completed Inspection/Repair Worksheet in the vehicle. This
document will clearly indicate if the vehicle passed or failed the inspection. Vehicles that pass
require no further action and can be released for sale/delivery. Vehicles that fail the inspection will
require replacement of the specific fixed glass noted on the worksheet. This could be the
windshield only, or the windshield and right side rear quarter, or the liftgate and left side rear
quarter. Once the discrepant glass is replaced, the vehicle can be released for sale/delivery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 17577
Vehicles Involved
Parts Information
Floor Plan Reimbursement
Dealers in possession of vehicles included in the Stop Delivery are eligible for reimbursement of
floor plan expense upon completion of this recall. This reimbursement is limited to the number of
days from the Stop Delivery message sent May 31, 2007, to the date the vehicle is either returned
by GM or repaired by the dealer, whichever is applicable. Floor plan reimbursement beyond these
dates is not allowed. The amount of reimbursement should be charged as a net amount expense
using the recall labor operation provided.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 17578
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 17579
Submit a Product Recall Claim with the information shown.
Customer Notification - For US and Canada
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 17580
identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a
reasonable allowance for depreciation. To avoid having to provide these burdensome remedies,
every effort must be made to promptly schedule an appointment with each customer and to repair
their vehicle as soon as possible. In the recall notification letters, customers are told how to contact
the US National Highway Traffic Safety Administration if the recall is not completed within a
reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. under title 49, section 30112 of the United states code, it is illegal for
a dealer to sell an new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Important:
This service procedure is to be used on delivered vehicles export vehicles, certain vehicles located
in remote areas, and inventory vehicles identified in the "Dealer Repaired Vehicle" report. If a
vehicle has been delivered to a customer and the VIN is not on the report, contact your AVM (US)
District Service/District Fixed Operations Manager (Canada) for approval prior to repairs.
This service procedure should also be used on any vehicle identified during the GM inspection as
needing the replacement of a specific piece glass any glass that needs to be replaced will be
clearly indicated on the Inspection/Repair Worksheet inside the vehicle. The inspectors will also
mark each "bad" piece of glass with a large "X" using a yellow grease marker.
Important:
GM Branded glass must be used for this repair. If this repair will be sublet, inform the installer that
GM branded glass MUST be used for this repair and provide them with a copy of the service
procedure found in this bulletin. There are unique instructions required when replacing the glass in
these vehicles.
Tools and Supplies Required
^ J 24402 A Glass Sealant Cold Knife Remover
^ J 39032 Stationary Glass Removal Tool
^ Isopropyl Alcohol or Equivalent
^ Cartridge-Type Caulking Gun
^ Commercial-Type Utility Knife
^ Razor Blade Scraper
^ Suction Cups
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 17581
^ Plastic Paddle
Important:
Carefully review the supplemental glass removal instructions below. Refer to SI for a complete list
of tools, supplies, and vehicle trim removal and installation procedures. The urethane and primer
instructions in this supplement replace the instructions published in SI for front windshield, liftgate
window, and quarter windows.
Removing the Glass
1. Cut the glass out by holding the cut-out tool to the edge of the glass with common glass removal
technique.
2. Prepare the window opening by cutting the excess urethane from the body.
2.1. During the cut-out process, pull and peel the urethane intermittently in a manner that will
separate the urethane from the flange.
2.2. Examine and check for securely bonded urethane, removing any loose urethane.
2.3. If the urethane is securely bonded, skim-cut the urethane leaving 0.5 mm (0.020 in) to 2 mm
(0.080 in) on the flange.
2.4. Cut the urethane to remove any ridges, notches, or divots.
2.5. Clean all loose pieces of urethane from the opening.
3. Repair the body bonding surface.
3.1. Locate any areas where the primer/urethane did not adhere to the paint surface.
3.2. If residual primer exists adjacent to the bonding area, remove it by sanding/de-gloss of topcoat
with 200 grit GM automotive grade sandpaper.
3.3. Clean the bonding surface using a low-lint paint shop quality rag dampened with the glass
bonding adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
Notice:
DO NOT apply the black body primer on the existing, urethane bead
3.4. Apply black body primer to the topcoat areas where the previous primer/urethane did not
adhere, and as needed adjacent to the skim-cut bead. Apply to any exposed metal non-class A
surface (viewable paint surface after re-trim).
3.5. Allow the black body primer to dry per the primer manufacturer's requirements prior to
installing the glass.
Glass Preparation
1. The glass must be clean, dry, and free of contaminates prior to the primer application.
Wipe the glass with a clean, low-lint, paint shop quality rag dampened with the glass bonding
adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
2. Allow the solvent to fully flash off prior to the application of the glass primer(s).
NOTICE:
The black glass primer application must be Continuous and streak-free in the bonding area.
3. Apply the glass primer(s) to the glass blackout (frit) per the adhesive/primer manufacturer's
requirements using the original/provided dimensions and locations.
Re-apply the black glass primer if a second coat is necessary. If clear primer is used, do not
re-apply the primer on the black. Use black glass primer on black primer only.
Urethane Application to the Glass
1. Apply a continuous bead of urethane adhesive over the previously applied glass primers using
the original/provided dimensions and locations. The bead should be a minimum of 14 mm (0.6 in)
high and 8 mm (0.3 in) wide at the base, in the shape of a blunt triangle.
NOTICE:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 17582
Use of an alternative method of urethane application "bead applied to body", may be used as
required/needed.
Notice:
At no time should the applied urethane exceed 5 minutes prior to glass installation.
2. Install the glass to the vehicle within 5 minutes of the urethane application.
3. If the 5 minute limit is exceeded, scrape/remove the urethane and reapply a new bead.
4. Upon installation, check the left / right positioning (centering) and lightly press the glass into
position.
5. Position the glass to ensure that the rear edge of the upper reveal molding does not gap to the
roof surface, by shifting the windshield upward.
6. Apply masking tape to hold the glass in place during the urethane cure. Use a tape that will not
leave adhesive residue on the vehicle upon removal.
7. Clean any excess urethane adhesive on the show surfaces by wiping immediately with a paint
shop quality rag dampened with the glass bonding adhesive manufacturer's recommended
cleaning solvent.
8. Remove the masking tape after two hours.
Service Procedure
1. Remove the windshield, liftgate window, and quarter windows from the vehicle. Refer to
Windshield Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI
for window removal instructions.
2. Replace the windshield, liftgate window, and quarter windows. Refer to Windshield
Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI for window
installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 17583
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > 07154B > Jun > 07 > Recall Windshield/Liftgate Glass/Side Stationary Glass > Page 17584
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > Recalls for Liftgate Window Glass: > NHTSA07V242000 > Jun > 07 > Recall
07V242000: Windshield/Liftgate/Quarter Glass
Liftgate Window Glass: Recalls Recall 07V242000: Windshield/Liftgate/Quarter Glass
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V242000 MFR'S
REPORT DATE: June 13, 2007
COMPONENT: Visibility: Windshield
POTENTIAL NUMBER OF UNITS AFFECTED: 6213
SUMMARY: Certain vehicles fail to conform to the requirements of Federal Motor Vehicle Safety
Standard No. 212, "Windshield Mounting." An incorrect primer may have been used when installing
the windshield. The same primer may have also been applied to the liftgate glass and the side
stationary glass.
CONSEQUENCE: In the event of a crash, the windshield may not be retained to the extent
required by the standard, increasing the risk of personal injuries to the vehicle occupants.
REMEDY: Dealers will replace the windshield, the liftgate glass, and the side stationary glass. The
recall began on June 14, 2007. Owners may contact Chevrolet at 1-800-630-2438 or Pontiac at
1-800-620-7668.
NOTES: GM recall No. 07154. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass
Technical Service Bulletin # 07154B Date: 070627
Recall - Windshield/Liftgate Glass/Side Stationary Glass
Subject: F/CMVSS Noncompliance - Windshield/Liftgate Glass/Side Stationary Glass Retention Replace Glass # 07154B - (06/27/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
THE LABOR OPERATION CODE FOR THE FLOOR PLAN REIMBURSEMENT AND THE
SECOND PID HAVE BEEN REVISED. IN ADDITION, THE PART INFORMATION SECTION HAS
BEEN REVISED TO ASSIST IN DETERMINING IF THE RIGHT QUARTER WINDOW IS
EQUIPPED WITH AN ANTENNA.
PLEASE DISCARD ALL COPIES OF BULLETIN 07154A, ISSUED JUNE 2007.
Vehicles involved in this recall were placed on Stop Delivery on Thursday, May 31, 2007, via
message # WIL20070008 (US) or email message (Canada).
^ Dealers who have more than one vehicle in inventory will be contacted by GM to arrange for
return of the vehicles to GM. Unsold vehicles are not to be released to customers. These vehicles
will be listed in the report titled, "Vehicles Returned to GM", sent with the Administrative Message
releasing this bulletin.
^ Dealers who have only one vehicle in inventory are to replace the windshield, liftgate glass, and
side quarter (stationary) glass following the instructions contained in this bulletin. These vehicles
will be listed in the report titled, "Dealer Repaired Vehicles", sent with the Administrative Message
releasing this bulletin.
^ Customer vehicles, export vehicles, and certain vehicles located in remote areas are to have the
windshield, liftgate glass, and side quarter (stationary) glass replaced following the instructions
contained in this bulletin. These vehicles will be listed in the report titled, "Dealer Repaired
Vehicles", sent with the Administrative Message releasing this bulletin.
See details in the bulletin for more information.
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent model
vehicles fail to conform to Federal/Canada Motor Vehicle Safety Standard (MVSS) 212, Windshield
Mounting. On some of these vehicles, an incorrect primer may have been used when installing the
windshield. In the event of a crash, the windshield may not be retained to the extent required by the
Standard, increasing the risk of personal injuries to the vehicle occupants.
The same primer may have also been applied to the liftgate glass and the side stationary glass.
Correction
For vehicles in customer possession, export vehicles, certain vehicles located in remote areas, and
inventory vehicles identified in the "Dealer Repaired Vehicles" report, dealers are to replace the
windshield, liftgate glass, and the side stationary glass. A listing of vehicles to repair, titled "Dealer
Repaired Vehicles", has been sent in the Administrative Message releasing this bulletin.
For vehicles in dealer inventory (greater than one), dealers are to hold the vehicle. The General
Motors Dealer Business Center will contact dealers to arrange for return of the vehicles to GM. The
vehicle transport company that normally services the dealership will facilitate the vehicle pick up.
The vehicles will then be inspected, repaired if necessary, and returned to dealers as quickly as
possible. A listing of vehicles to be returned to GM, titled "Vehicles Returned to GM", has been sent
in the Administrative Message releasing this bulletin.
Each vehicle will be returned with a completed Inspection/Repair Worksheet in the vehicle. This
document will clearly indicate if the vehicle passed or failed the inspection. Vehicles that pass
require no further action and can be released for sale/delivery. Vehicles that fail the inspection will
require replacement of the specific fixed glass noted on the worksheet. This could be the
windshield only, or the windshield and right side rear quarter, or the liftgate and left side rear
quarter. Once the discrepant glass is replaced, the vehicle can be released for sale/delivery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17594
Vehicles Involved
Parts Information
Floor Plan Reimbursement
Dealers in possession of vehicles included in the Stop Delivery are eligible for reimbursement of
floor plan expense upon completion of this recall. This reimbursement is limited to the number of
days from the Stop Delivery message sent May 31, 2007, to the date the vehicle is either returned
by GM or repaired by the dealer, whichever is applicable. Floor plan reimbursement beyond these
dates is not allowed. The amount of reimbursement should be charged as a net amount expense
using the recall labor operation provided.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17595
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17596
Submit a Product Recall Claim with the information shown.
Customer Notification - For US and Canada
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17597
identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a
reasonable allowance for depreciation. To avoid having to provide these burdensome remedies,
every effort must be made to promptly schedule an appointment with each customer and to repair
their vehicle as soon as possible. In the recall notification letters, customers are told how to contact
the US National Highway Traffic Safety Administration if the recall is not completed within a
reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. under title 49, section 30112 of the United states code, it is illegal for
a dealer to sell an new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Important:
This service procedure is to be used on delivered vehicles export vehicles, certain vehicles located
in remote areas, and inventory vehicles identified in the "Dealer Repaired Vehicle" report. If a
vehicle has been delivered to a customer and the VIN is not on the report, contact your AVM (US)
District Service/District Fixed Operations Manager (Canada) for approval prior to repairs.
This service procedure should also be used on any vehicle identified during the GM inspection as
needing the replacement of a specific piece glass any glass that needs to be replaced will be
clearly indicated on the Inspection/Repair Worksheet inside the vehicle. The inspectors will also
mark each "bad" piece of glass with a large "X" using a yellow grease marker.
Important:
GM Branded glass must be used for this repair. If this repair will be sublet, inform the installer that
GM branded glass MUST be used for this repair and provide them with a copy of the service
procedure found in this bulletin. There are unique instructions required when replacing the glass in
these vehicles.
Tools and Supplies Required
^ J 24402 A Glass Sealant Cold Knife Remover
^ J 39032 Stationary Glass Removal Tool
^ Isopropyl Alcohol or Equivalent
^ Cartridge-Type Caulking Gun
^ Commercial-Type Utility Knife
^ Razor Blade Scraper
^ Suction Cups
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17598
^ Plastic Paddle
Important:
Carefully review the supplemental glass removal instructions below. Refer to SI for a complete list
of tools, supplies, and vehicle trim removal and installation procedures. The urethane and primer
instructions in this supplement replace the instructions published in SI for front windshield, liftgate
window, and quarter windows.
Removing the Glass
1. Cut the glass out by holding the cut-out tool to the edge of the glass with common glass removal
technique.
2. Prepare the window opening by cutting the excess urethane from the body.
2.1. During the cut-out process, pull and peel the urethane intermittently in a manner that will
separate the urethane from the flange.
2.2. Examine and check for securely bonded urethane, removing any loose urethane.
2.3. If the urethane is securely bonded, skim-cut the urethane leaving 0.5 mm (0.020 in) to 2 mm
(0.080 in) on the flange.
2.4. Cut the urethane to remove any ridges, notches, or divots.
2.5. Clean all loose pieces of urethane from the opening.
3. Repair the body bonding surface.
3.1. Locate any areas where the primer/urethane did not adhere to the paint surface.
3.2. If residual primer exists adjacent to the bonding area, remove it by sanding/de-gloss of topcoat
with 200 grit GM automotive grade sandpaper.
3.3. Clean the bonding surface using a low-lint paint shop quality rag dampened with the glass
bonding adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
Notice:
DO NOT apply the black body primer on the existing, urethane bead
3.4. Apply black body primer to the topcoat areas where the previous primer/urethane did not
adhere, and as needed adjacent to the skim-cut bead. Apply to any exposed metal non-class A
surface (viewable paint surface after re-trim).
3.5. Allow the black body primer to dry per the primer manufacturer's requirements prior to
installing the glass.
Glass Preparation
1. The glass must be clean, dry, and free of contaminates prior to the primer application.
Wipe the glass with a clean, low-lint, paint shop quality rag dampened with the glass bonding
adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
2. Allow the solvent to fully flash off prior to the application of the glass primer(s).
NOTICE:
The black glass primer application must be Continuous and streak-free in the bonding area.
3. Apply the glass primer(s) to the glass blackout (frit) per the adhesive/primer manufacturer's
requirements using the original/provided dimensions and locations.
Re-apply the black glass primer if a second coat is necessary. If clear primer is used, do not
re-apply the primer on the black. Use black glass primer on black primer only.
Urethane Application to the Glass
1. Apply a continuous bead of urethane adhesive over the previously applied glass primers using
the original/provided dimensions and locations. The bead should be a minimum of 14 mm (0.6 in)
high and 8 mm (0.3 in) wide at the base, in the shape of a blunt triangle.
NOTICE:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17599
Use of an alternative method of urethane application "bead applied to body", may be used as
required/needed.
Notice:
At no time should the applied urethane exceed 5 minutes prior to glass installation.
2. Install the glass to the vehicle within 5 minutes of the urethane application.
3. If the 5 minute limit is exceeded, scrape/remove the urethane and reapply a new bead.
4. Upon installation, check the left / right positioning (centering) and lightly press the glass into
position.
5. Position the glass to ensure that the rear edge of the upper reveal molding does not gap to the
roof surface, by shifting the windshield upward.
6. Apply masking tape to hold the glass in place during the urethane cure. Use a tape that will not
leave adhesive residue on the vehicle upon removal.
7. Clean any excess urethane adhesive on the show surfaces by wiping immediately with a paint
shop quality rag dampened with the glass bonding adhesive manufacturer's recommended
cleaning solvent.
8. Remove the masking tape after two hours.
Service Procedure
1. Remove the windshield, liftgate window, and quarter windows from the vehicle. Refer to
Windshield Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI
for window removal instructions.
2. Replace the windshield, liftgate window, and quarter windows. Refer to Windshield
Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI for window
installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17600
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17601
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Liftgate Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Liftgate Window Glass: > NHTSA07V242000
> Jun > 07 > Recall 07V242000: Windshield/Liftgate/Quarter Glass
Liftgate Window Glass: All Technical Service Bulletins Recall 07V242000:
Windshield/Liftgate/Quarter Glass
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V242000 MFR'S
REPORT DATE: June 13, 2007
COMPONENT: Visibility: Windshield
POTENTIAL NUMBER OF UNITS AFFECTED: 6213
SUMMARY: Certain vehicles fail to conform to the requirements of Federal Motor Vehicle Safety
Standard No. 212, "Windshield Mounting." An incorrect primer may have been used when installing
the windshield. The same primer may have also been applied to the liftgate glass and the side
stationary glass.
CONSEQUENCE: In the event of a crash, the windshield may not be retained to the extent
required by the standard, increasing the risk of personal injuries to the vehicle occupants.
REMEDY: Dealers will replace the windshield, the liftgate glass, and the side stationary glass. The
recall began on June 14, 2007. Owners may contact Chevrolet at 1-800-630-2438 or Pontiac at
1-800-620-7668.
NOTES: GM recall No. 07154. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > Recalls: > 07154B > Jun > 07 > Recall - Windshield/Liftgate Glass/Side
Stationary Glass
Technical Service Bulletin # 07154B Date: 070627
Recall - Windshield/Liftgate Glass/Side Stationary Glass
Subject: F/CMVSS Noncompliance - Windshield/Liftgate Glass/Side Stationary Glass Retention Replace Glass # 07154B - (06/27/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
THE LABOR OPERATION CODE FOR THE FLOOR PLAN REIMBURSEMENT AND THE
SECOND PID HAVE BEEN REVISED. IN ADDITION, THE PART INFORMATION SECTION HAS
BEEN REVISED TO ASSIST IN DETERMINING IF THE RIGHT QUARTER WINDOW IS
EQUIPPED WITH AN ANTENNA.
PLEASE DISCARD ALL COPIES OF BULLETIN 07154A, ISSUED JUNE 2007.
Vehicles involved in this recall were placed on Stop Delivery on Thursday, May 31, 2007, via
message # WIL20070008 (US) or email message (Canada).
^ Dealers who have more than one vehicle in inventory will be contacted by GM to arrange for
return of the vehicles to GM. Unsold vehicles are not to be released to customers. These vehicles
will be listed in the report titled, "Vehicles Returned to GM", sent with the Administrative Message
releasing this bulletin.
^ Dealers who have only one vehicle in inventory are to replace the windshield, liftgate glass, and
side quarter (stationary) glass following the instructions contained in this bulletin. These vehicles
will be listed in the report titled, "Dealer Repaired Vehicles", sent with the Administrative Message
releasing this bulletin.
^ Customer vehicles, export vehicles, and certain vehicles located in remote areas are to have the
windshield, liftgate glass, and side quarter (stationary) glass replaced following the instructions
contained in this bulletin. These vehicles will be listed in the report titled, "Dealer Repaired
Vehicles", sent with the Administrative Message releasing this bulletin.
See details in the bulletin for more information.
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent model
vehicles fail to conform to Federal/Canada Motor Vehicle Safety Standard (MVSS) 212, Windshield
Mounting. On some of these vehicles, an incorrect primer may have been used when installing the
windshield. In the event of a crash, the windshield may not be retained to the extent required by the
Standard, increasing the risk of personal injuries to the vehicle occupants.
The same primer may have also been applied to the liftgate glass and the side stationary glass.
Correction
For vehicles in customer possession, export vehicles, certain vehicles located in remote areas, and
inventory vehicles identified in the "Dealer Repaired Vehicles" report, dealers are to replace the
windshield, liftgate glass, and the side stationary glass. A listing of vehicles to repair, titled "Dealer
Repaired Vehicles", has been sent in the Administrative Message releasing this bulletin.
For vehicles in dealer inventory (greater than one), dealers are to hold the vehicle. The General
Motors Dealer Business Center will contact dealers to arrange for return of the vehicles to GM. The
vehicle transport company that normally services the dealership will facilitate the vehicle pick up.
The vehicles will then be inspected, repaired if necessary, and returned to dealers as quickly as
possible. A listing of vehicles to be returned to GM, titled "Vehicles Returned to GM", has been sent
in the Administrative Message releasing this bulletin.
Each vehicle will be returned with a completed Inspection/Repair Worksheet in the vehicle. This
document will clearly indicate if the vehicle passed or failed the inspection. Vehicles that pass
require no further action and can be released for sale/delivery. Vehicles that fail the inspection will
require replacement of the specific fixed glass noted on the worksheet. This could be the
windshield only, or the windshield and right side rear quarter, or the liftgate and left side rear
quarter. Once the discrepant glass is replaced, the vehicle can be released for sale/delivery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > Recalls: > 07154B > Jun > 07 > Recall - Windshield/Liftgate Glass/Side
Stationary Glass > Page 17614
Vehicles Involved
Parts Information
Floor Plan Reimbursement
Dealers in possession of vehicles included in the Stop Delivery are eligible for reimbursement of
floor plan expense upon completion of this recall. This reimbursement is limited to the number of
days from the Stop Delivery message sent May 31, 2007, to the date the vehicle is either returned
by GM or repaired by the dealer, whichever is applicable. Floor plan reimbursement beyond these
dates is not allowed. The amount of reimbursement should be charged as a net amount expense
using the recall labor operation provided.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > Recalls: > 07154B > Jun > 07 > Recall - Windshield/Liftgate Glass/Side
Stationary Glass > Page 17615
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > Recalls: > 07154B > Jun > 07 > Recall - Windshield/Liftgate Glass/Side
Stationary Glass > Page 17616
Submit a Product Recall Claim with the information shown.
Customer Notification - For US and Canada
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > Recalls: > 07154B > Jun > 07 > Recall - Windshield/Liftgate Glass/Side
Stationary Glass > Page 17617
identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a
reasonable allowance for depreciation. To avoid having to provide these burdensome remedies,
every effort must be made to promptly schedule an appointment with each customer and to repair
their vehicle as soon as possible. In the recall notification letters, customers are told how to contact
the US National Highway Traffic Safety Administration if the recall is not completed within a
reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. under title 49, section 30112 of the United states code, it is illegal for
a dealer to sell an new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Important:
This service procedure is to be used on delivered vehicles export vehicles, certain vehicles located
in remote areas, and inventory vehicles identified in the "Dealer Repaired Vehicle" report. If a
vehicle has been delivered to a customer and the VIN is not on the report, contact your AVM (US)
District Service/District Fixed Operations Manager (Canada) for approval prior to repairs.
This service procedure should also be used on any vehicle identified during the GM inspection as
needing the replacement of a specific piece glass any glass that needs to be replaced will be
clearly indicated on the Inspection/Repair Worksheet inside the vehicle. The inspectors will also
mark each "bad" piece of glass with a large "X" using a yellow grease marker.
Important:
GM Branded glass must be used for this repair. If this repair will be sublet, inform the installer that
GM branded glass MUST be used for this repair and provide them with a copy of the service
procedure found in this bulletin. There are unique instructions required when replacing the glass in
these vehicles.
Tools and Supplies Required
^ J 24402 A Glass Sealant Cold Knife Remover
^ J 39032 Stationary Glass Removal Tool
^ Isopropyl Alcohol or Equivalent
^ Cartridge-Type Caulking Gun
^ Commercial-Type Utility Knife
^ Razor Blade Scraper
^ Suction Cups
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > Recalls: > 07154B > Jun > 07 > Recall - Windshield/Liftgate Glass/Side
Stationary Glass > Page 17618
^ Plastic Paddle
Important:
Carefully review the supplemental glass removal instructions below. Refer to SI for a complete list
of tools, supplies, and vehicle trim removal and installation procedures. The urethane and primer
instructions in this supplement replace the instructions published in SI for front windshield, liftgate
window, and quarter windows.
Removing the Glass
1. Cut the glass out by holding the cut-out tool to the edge of the glass with common glass removal
technique.
2. Prepare the window opening by cutting the excess urethane from the body.
2.1. During the cut-out process, pull and peel the urethane intermittently in a manner that will
separate the urethane from the flange.
2.2. Examine and check for securely bonded urethane, removing any loose urethane.
2.3. If the urethane is securely bonded, skim-cut the urethane leaving 0.5 mm (0.020 in) to 2 mm
(0.080 in) on the flange.
2.4. Cut the urethane to remove any ridges, notches, or divots.
2.5. Clean all loose pieces of urethane from the opening.
3. Repair the body bonding surface.
3.1. Locate any areas where the primer/urethane did not adhere to the paint surface.
3.2. If residual primer exists adjacent to the bonding area, remove it by sanding/de-gloss of topcoat
with 200 grit GM automotive grade sandpaper.
3.3. Clean the bonding surface using a low-lint paint shop quality rag dampened with the glass
bonding adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
Notice:
DO NOT apply the black body primer on the existing, urethane bead
3.4. Apply black body primer to the topcoat areas where the previous primer/urethane did not
adhere, and as needed adjacent to the skim-cut bead. Apply to any exposed metal non-class A
surface (viewable paint surface after re-trim).
3.5. Allow the black body primer to dry per the primer manufacturer's requirements prior to
installing the glass.
Glass Preparation
1. The glass must be clean, dry, and free of contaminates prior to the primer application.
Wipe the glass with a clean, low-lint, paint shop quality rag dampened with the glass bonding
adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
2. Allow the solvent to fully flash off prior to the application of the glass primer(s).
NOTICE:
The black glass primer application must be Continuous and streak-free in the bonding area.
3. Apply the glass primer(s) to the glass blackout (frit) per the adhesive/primer manufacturer's
requirements using the original/provided dimensions and locations.
Re-apply the black glass primer if a second coat is necessary. If clear primer is used, do not
re-apply the primer on the black. Use black glass primer on black primer only.
Urethane Application to the Glass
1. Apply a continuous bead of urethane adhesive over the previously applied glass primers using
the original/provided dimensions and locations. The bead should be a minimum of 14 mm (0.6 in)
high and 8 mm (0.3 in) wide at the base, in the shape of a blunt triangle.
NOTICE:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > Recalls: > 07154B > Jun > 07 > Recall - Windshield/Liftgate Glass/Side
Stationary Glass > Page 17619
Use of an alternative method of urethane application "bead applied to body", may be used as
required/needed.
Notice:
At no time should the applied urethane exceed 5 minutes prior to glass installation.
2. Install the glass to the vehicle within 5 minutes of the urethane application.
3. If the 5 minute limit is exceeded, scrape/remove the urethane and reapply a new bead.
4. Upon installation, check the left / right positioning (centering) and lightly press the glass into
position.
5. Position the glass to ensure that the rear edge of the upper reveal molding does not gap to the
roof surface, by shifting the windshield upward.
6. Apply masking tape to hold the glass in place during the urethane cure. Use a tape that will not
leave adhesive residue on the vehicle upon removal.
7. Clean any excess urethane adhesive on the show surfaces by wiping immediately with a paint
shop quality rag dampened with the glass bonding adhesive manufacturer's recommended
cleaning solvent.
8. Remove the masking tape after two hours.
Service Procedure
1. Remove the windshield, liftgate window, and quarter windows from the vehicle. Refer to
Windshield Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI
for window removal instructions.
2. Replace the windshield, liftgate window, and quarter windows. Refer to Windshield
Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI for window
installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > Recalls: > 07154B > Jun > 07 > Recall - Windshield/Liftgate Glass/Side
Stationary Glass > Page 17620
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > Recalls: > 07154B > Jun > 07 > Recall - Windshield/Liftgate Glass/Side
Stationary Glass > Page 17621
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > Recalls: > NHTSA07V242000 > Jun > 07 > Recall 07V242000:
Windshield/Liftgate/Quarter Glass
Quarter Window Glass: Recalls Recall 07V242000: Windshield/Liftgate/Quarter Glass
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V242000 MFR'S
REPORT DATE: June 13, 2007
COMPONENT: Visibility: Windshield
POTENTIAL NUMBER OF UNITS AFFECTED: 6213
SUMMARY: Certain vehicles fail to conform to the requirements of Federal Motor Vehicle Safety
Standard No. 212, "Windshield Mounting." An incorrect primer may have been used when installing
the windshield. The same primer may have also been applied to the liftgate glass and the side
stationary glass.
CONSEQUENCE: In the event of a crash, the windshield may not be retained to the extent
required by the standard, increasing the risk of personal injuries to the vehicle occupants.
REMEDY: Dealers will replace the windshield, the liftgate glass, and the side stationary glass. The
recall began on June 14, 2007. Owners may contact Chevrolet at 1-800-630-2438 or Pontiac at
1-800-620-7668.
NOTES: GM recall No. 07154. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Quarter Window Glass: > 00-08-48-005D >
Sep > 10 > Body - Vehicle Glass Distortion Information
Quarter Window Glass: All Technical Service Bulletins Body - Vehicle Glass Distortion Information
INFORMATION
Bulletin No.: 00-08-48-005D
Date: September 10, 2010
Subject: Distortion in Outer Surface of Vehicle Glass
Models:
2011 and Prior GM Passenger Cars and Trucks 2009 and Prior HUMMER H2 2010 and Prior
HUMMER H3 2005-2009 Saab 9-7X 2010 and Prior Saturn
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 00-08-48-005C (Section 08 - Body and Accessories).
Distortion in the outer surface of the windshield glass, door glass or backlite glass may appear after
the vehicle has:
- Accumulated some mileage.
- Been frequently washed in automatic car washes, particularly "touchless" car washes.
This distortion may look like a subtle orange peel pattern, or may look like a drip or sag etched into
the surface of the glass.
Some car wash solutions contain a buffered solution of hydrofluoric acid which is used to clean the
glass. This should not cause a problem if used in the correct concentration. However, if not used
correctly, hydrofluoric acid will attack the glass, and over time, will cause visual distortion in the
outer surface of the glass which cannot be removed by scraping or polishing.
If this condition is suspected, look at the area of the windshield under the wipers or below the belt
seal on the side glass. The area of the glass below the wipers or belt seal will not be affected and
what looks like a drip or sag may be apparent at the edge of the wiper or belt seal. You may also
see a line on the glass where the wiper blade or the belt seal contacts the glass.
Important The repair will require replacing the affected glass and is not a result of a defect in
material or workmanship. Therefore, is not covered by New Vehicle Warranty.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Quarter Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass
Technical Service Bulletin # 07154B Date: 070627
Recall - Windshield/Liftgate Glass/Side Stationary Glass
Subject: F/CMVSS Noncompliance - Windshield/Liftgate Glass/Side Stationary Glass Retention Replace Glass # 07154B - (06/27/2007)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
THE LABOR OPERATION CODE FOR THE FLOOR PLAN REIMBURSEMENT AND THE
SECOND PID HAVE BEEN REVISED. IN ADDITION, THE PART INFORMATION SECTION HAS
BEEN REVISED TO ASSIST IN DETERMINING IF THE RIGHT QUARTER WINDOW IS
EQUIPPED WITH AN ANTENNA.
PLEASE DISCARD ALL COPIES OF BULLETIN 07154A, ISSUED JUNE 2007.
Vehicles involved in this recall were placed on Stop Delivery on Thursday, May 31, 2007, via
message # WIL20070008 (US) or email message (Canada).
^ Dealers who have more than one vehicle in inventory will be contacted by GM to arrange for
return of the vehicles to GM. Unsold vehicles are not to be released to customers. These vehicles
will be listed in the report titled, "Vehicles Returned to GM", sent with the Administrative Message
releasing this bulletin.
^ Dealers who have only one vehicle in inventory are to replace the windshield, liftgate glass, and
side quarter (stationary) glass following the instructions contained in this bulletin. These vehicles
will be listed in the report titled, "Dealer Repaired Vehicles", sent with the Administrative Message
releasing this bulletin.
^ Customer vehicles, export vehicles, and certain vehicles located in remote areas are to have the
windshield, liftgate glass, and side quarter (stationary) glass replaced following the instructions
contained in this bulletin. These vehicles will be listed in the report titled, "Dealer Repaired
Vehicles", sent with the Administrative Message releasing this bulletin.
See details in the bulletin for more information.
Condition
General Motors has decided that certain 2007 Chevrolet Equinox and Pontiac Torrent model
vehicles fail to conform to Federal/Canada Motor Vehicle Safety Standard (MVSS) 212, Windshield
Mounting. On some of these vehicles, an incorrect primer may have been used when installing the
windshield. In the event of a crash, the windshield may not be retained to the extent required by the
Standard, increasing the risk of personal injuries to the vehicle occupants.
The same primer may have also been applied to the liftgate glass and the side stationary glass.
Correction
For vehicles in customer possession, export vehicles, certain vehicles located in remote areas, and
inventory vehicles identified in the "Dealer Repaired Vehicles" report, dealers are to replace the
windshield, liftgate glass, and the side stationary glass. A listing of vehicles to repair, titled "Dealer
Repaired Vehicles", has been sent in the Administrative Message releasing this bulletin.
For vehicles in dealer inventory (greater than one), dealers are to hold the vehicle. The General
Motors Dealer Business Center will contact dealers to arrange for return of the vehicles to GM. The
vehicle transport company that normally services the dealership will facilitate the vehicle pick up.
The vehicles will then be inspected, repaired if necessary, and returned to dealers as quickly as
possible. A listing of vehicles to be returned to GM, titled "Vehicles Returned to GM", has been sent
in the Administrative Message releasing this bulletin.
Each vehicle will be returned with a completed Inspection/Repair Worksheet in the vehicle. This
document will clearly indicate if the vehicle passed or failed the inspection. Vehicles that pass
require no further action and can be released for sale/delivery. Vehicles that fail the inspection will
require replacement of the specific fixed glass noted on the worksheet. This could be the
windshield only, or the windshield and right side rear quarter, or the liftgate and left side rear
quarter. Once the discrepant glass is replaced, the vehicle can be released for sale/delivery.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Quarter Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17635
Vehicles Involved
Parts Information
Floor Plan Reimbursement
Dealers in possession of vehicles included in the Stop Delivery are eligible for reimbursement of
floor plan expense upon completion of this recall. This reimbursement is limited to the number of
days from the Stop Delivery message sent May 31, 2007, to the date the vehicle is either returned
by GM or repaired by the dealer, whichever is applicable. Floor plan reimbursement beyond these
dates is not allowed. The amount of reimbursement should be charged as a net amount expense
using the recall labor operation provided.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Quarter Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17636
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation Program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranty. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product recall is very important in maintaining customer
satisfaction. Dealers are to ensure that these customers understand that shuttle service or some
other form of courtesy transportation is available and will be provided at no charge. Dealers should
refer to the General Motors Service Policies and Procedures Manual for courtesy transportation
guidelines.
Claim Information
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Quarter Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17637
Submit a Product Recall Claim with the information shown.
Customer Notification - For US and Canada
General Motors will notify customers of this recall on their vehicle (see copy of customer letter
shown in this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify
customers using the sample letter.
Dealer Recall Responsibility - For US and Export (US States, Territories, and Possessions)
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a
recall of this type must be adequately repaired within a reasonable time after the customer has
tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie
evidence of failure to repair within a reasonable time. If the condition is not adequately repaired
within a reasonable time, the customer may be entitled to an
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Quarter Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17638
identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a
reasonable allowance for depreciation. To avoid having to provide these burdensome remedies,
every effort must be made to promptly schedule an appointment with each customer and to repair
their vehicle as soon as possible. In the recall notification letters, customers are told how to contact
the US National Highway Traffic Safety Administration if the recall is not completed within a
reasonable time.
This bulletin is notice to you that the new motor vehicles included in this recall may not comply with
the standard identified above. under title 49, section 30112 of the United states code, it is illegal for
a dealer to sell an new motor vehicle which the dealer knows does not comply with an applicable
Federal Motor Vehicle Safety Standard. As a consequence, if you sell any of these motor vehicles
without first performing the recall correction, your dealership may be subject to a civil penalty for
each such sale.
Dealer Recall Responsibility - All
All unsold new vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin. A copy of the customer letter is shown in this bulletin for your use in
contacting customers. Recall follow-up cards should not be used for this purpose, since the
customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
dealership for service in the future, you must take the steps necessary to be sure the recall
correction has been made before selling or releasing the vehicle.
Disclaimer
Service Procedure
Important:
This service procedure is to be used on delivered vehicles export vehicles, certain vehicles located
in remote areas, and inventory vehicles identified in the "Dealer Repaired Vehicle" report. If a
vehicle has been delivered to a customer and the VIN is not on the report, contact your AVM (US)
District Service/District Fixed Operations Manager (Canada) for approval prior to repairs.
This service procedure should also be used on any vehicle identified during the GM inspection as
needing the replacement of a specific piece glass any glass that needs to be replaced will be
clearly indicated on the Inspection/Repair Worksheet inside the vehicle. The inspectors will also
mark each "bad" piece of glass with a large "X" using a yellow grease marker.
Important:
GM Branded glass must be used for this repair. If this repair will be sublet, inform the installer that
GM branded glass MUST be used for this repair and provide them with a copy of the service
procedure found in this bulletin. There are unique instructions required when replacing the glass in
these vehicles.
Tools and Supplies Required
^ J 24402 A Glass Sealant Cold Knife Remover
^ J 39032 Stationary Glass Removal Tool
^ Isopropyl Alcohol or Equivalent
^ Cartridge-Type Caulking Gun
^ Commercial-Type Utility Knife
^ Razor Blade Scraper
^ Suction Cups
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Quarter Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17639
^ Plastic Paddle
Important:
Carefully review the supplemental glass removal instructions below. Refer to SI for a complete list
of tools, supplies, and vehicle trim removal and installation procedures. The urethane and primer
instructions in this supplement replace the instructions published in SI for front windshield, liftgate
window, and quarter windows.
Removing the Glass
1. Cut the glass out by holding the cut-out tool to the edge of the glass with common glass removal
technique.
2. Prepare the window opening by cutting the excess urethane from the body.
2.1. During the cut-out process, pull and peel the urethane intermittently in a manner that will
separate the urethane from the flange.
2.2. Examine and check for securely bonded urethane, removing any loose urethane.
2.3. If the urethane is securely bonded, skim-cut the urethane leaving 0.5 mm (0.020 in) to 2 mm
(0.080 in) on the flange.
2.4. Cut the urethane to remove any ridges, notches, or divots.
2.5. Clean all loose pieces of urethane from the opening.
3. Repair the body bonding surface.
3.1. Locate any areas where the primer/urethane did not adhere to the paint surface.
3.2. If residual primer exists adjacent to the bonding area, remove it by sanding/de-gloss of topcoat
with 200 grit GM automotive grade sandpaper.
3.3. Clean the bonding surface using a low-lint paint shop quality rag dampened with the glass
bonding adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
Notice:
DO NOT apply the black body primer on the existing, urethane bead
3.4. Apply black body primer to the topcoat areas where the previous primer/urethane did not
adhere, and as needed adjacent to the skim-cut bead. Apply to any exposed metal non-class A
surface (viewable paint surface after re-trim).
3.5. Allow the black body primer to dry per the primer manufacturer's requirements prior to
installing the glass.
Glass Preparation
1. The glass must be clean, dry, and free of contaminates prior to the primer application.
Wipe the glass with a clean, low-lint, paint shop quality rag dampened with the glass bonding
adhesive manufacturer's recommended cleaning solvent and allow to flash-dry.
2. Allow the solvent to fully flash off prior to the application of the glass primer(s).
NOTICE:
The black glass primer application must be Continuous and streak-free in the bonding area.
3. Apply the glass primer(s) to the glass blackout (frit) per the adhesive/primer manufacturer's
requirements using the original/provided dimensions and locations.
Re-apply the black glass primer if a second coat is necessary. If clear primer is used, do not
re-apply the primer on the black. Use black glass primer on black primer only.
Urethane Application to the Glass
1. Apply a continuous bead of urethane adhesive over the previously applied glass primers using
the original/provided dimensions and locations. The bead should be a minimum of 14 mm (0.6 in)
high and 8 mm (0.3 in) wide at the base, in the shape of a blunt triangle.
NOTICE:
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Quarter Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17640
Use of an alternative method of urethane application "bead applied to body", may be used as
required/needed.
Notice:
At no time should the applied urethane exceed 5 minutes prior to glass installation.
2. Install the glass to the vehicle within 5 minutes of the urethane application.
3. If the 5 minute limit is exceeded, scrape/remove the urethane and reapply a new bead.
4. Upon installation, check the left / right positioning (centering) and lightly press the glass into
position.
5. Position the glass to ensure that the rear edge of the upper reveal molding does not gap to the
roof surface, by shifting the windshield upward.
6. Apply masking tape to hold the glass in place during the urethane cure. Use a tape that will not
leave adhesive residue on the vehicle upon removal.
7. Clean any excess urethane adhesive on the show surfaces by wiping immediately with a paint
shop quality rag dampened with the glass bonding adhesive manufacturer's recommended
cleaning solvent.
8. Remove the masking tape after two hours.
Service Procedure
1. Remove the windshield, liftgate window, and quarter windows from the vehicle. Refer to
Windshield Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI
for window removal instructions.
2. Replace the windshield, liftgate window, and quarter windows. Refer to Windshield
Replacement, Quarter Window Replacement, and Liftgate Window Replacement in SI for window
installation instructions.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Quarter Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17641
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Quarter Window Glass: > 07154B > Jun > 07
> Recall - Windshield/Liftgate Glass/Side Stationary Glass > Page 17642
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Technical Service Bulletins for Quarter Window Glass: > NHTSA07V242000
> Jun > 07 > Recall 07V242000: Windshield/Liftgate/Quarter Glass
Quarter Window Glass: All Technical Service Bulletins Recall 07V242000:
Windshield/Liftgate/Quarter Glass
MAKE/MODELS: MODEL/BUILD YEARS: Chevrolet/Equinox 2007 Pontiac/Torrent 2007
MANUFACTURER: General Motors Corp. NHTSA CAMPAIGN ID NUMBER: 07V242000 MFR'S
REPORT DATE: June 13, 2007
COMPONENT: Visibility: Windshield
POTENTIAL NUMBER OF UNITS AFFECTED: 6213
SUMMARY: Certain vehicles fail to conform to the requirements of Federal Motor Vehicle Safety
Standard No. 212, "Windshield Mounting." An incorrect primer may have been used when installing
the windshield. The same primer may have also been applied to the liftgate glass and the side
stationary glass.
CONSEQUENCE: In the event of a crash, the windshield may not be retained to the extent
required by the standard, increasing the risk of personal injuries to the vehicle occupants.
REMEDY: Dealers will replace the windshield, the liftgate glass, and the side stationary glass. The
recall began on June 14, 2007. Owners may contact Chevrolet at 1-800-630-2438 or Pontiac at
1-800-620-7668.
NOTES: GM recall No. 07154. Customers may also contact The National Highway Traffic Safety
Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to
http://www.safercar.gov.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Glass > Quarter Window Glass > Component
Information > Technical Service Bulletins > All Other Service Bulletins for Quarter Window Glass: > 00-08-48-005D > Sep >
10 > Body - Vehicle Glass Distortion Information
Quarter Window Glass: All Technical Service Bulletins Body - Vehicle Glass Distortion Information
INFORMATION
Bulletin No.: 00-08-48-005D
Date: September 10, 2010
Subject: Distortion in Outer Surface of Vehicle Glass
Models:
2011 and Prior GM Passenger Cars and Trucks 2009 and Prior HUMMER H2 2010 and Prior
HUMMER H3 2005-2009 Saab 9-7X 2010 and Prior Saturn
Supercede: This bulletin is being revised to add model years. Please discard Corporate Bulletin
Number 00-08-48-005C (Section 08 - Body and Accessories).
Distortion in the outer surface of the windshield glass, door glass or backlite glass may appear after
the vehicle has:
- Accumulated some mileage.
- Been frequently washed in automatic car washes, particularly "touchless" car washes.
This distortion may look like a subtle orange peel pattern, or may look like a drip or sag etched into
the surface of the glass.
Some car wash solutions contain a buffered solution of hydrofluoric acid which is used to clean the
glass. This should not cause a problem if used in the correct concentration. However, if not used
correctly, hydrofluoric acid will attack the glass, and over time, will cause visual distortion in the
outer surface of the glass which cannot be removed by scraping or polishing.
If this condition is suspected, look at the area of the windshield under the wipers or below the belt
seal on the side glass. The area of the glass below the wipers or belt seal will not be affected and
what looks like a drip or sag may be apparent at the edge of the wiper or belt seal. You may also
see a line on the glass where the wiper blade or the belt seal contacts the glass.
Important The repair will require replacing the affected glass and is not a result of a defect in
material or workmanship. Therefore, is not covered by New Vehicle Warranty.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Regulator > Front Door Window Regulator >
System Information > Service and Repair
Front Door Window Regulator: Service and Repair
FRONT SIDE DOOR WINDOW REGULATOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Regulator > Front Door Window Regulator >
System Information > Service and Repair > Page 17656
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Regulator > Rear Door Window Regulator >
System Information > Service and Repair
Rear Door Window Regulator: Service and Repair
REAR SIDE DOOR WINDOW REGULATOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windows > Window Regulator > Rear Door Window Regulator >
System Information > Service and Repair > Page 17660
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Windows and Glass > Windshield > Windshield Moulding / Trim > Component Information >
Service and Repair
Windshield Moulding / Trim: Service and Repair
Windshield Frame Applique Replacement
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Sensors and Switches - Wiper and Washer Systems >
Windshield Washer Switch > Component Information > Locations
Windshield Washer Switch: Locations
Wiper/Washer System Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Sensors and Switches - Wiper and Washer Systems >
Windshield Washer Switch > Component Information > Locations > Page 17670
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Sensors and Switches - Wiper and Washer Systems >
Windshield Washer Switch > Component Information > Locations > Page 17671
Windshield Wiper Washer Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Sensors and Switches - Wiper and Washer Systems >
Windshield Washer Switch > Component Information > Service and Repair > Wipers/Washer Switch Replacement
Windshield Washer Switch: Service and Repair Wipers/Washer Switch Replacement
WIPERS/WASHER SWITCH REPLACEMENT
REMOVAL PROCEDURE
1. Remove the steering column trim covers. 2. Disconnect the wipers/washer switch connector.
3. Depress the locking tabs and remove the wiper/washer switch.
INSTALLATION PROCEDURE
1. Install the wipers/washer switch to the steering column.Ensure the locking tabs are fully
engaged. 2. Connect the wipers/washer switch harness connector. 3. Install the steering column
trim covers.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Sensors and Switches - Wiper and Washer Systems >
Windshield Washer Switch > Component Information > Service and Repair > Wipers/Washer Switch Replacement > Page
17674
Windshield Washer Switch: Service and Repair Rear Window Wiper and Washer Switch
Replacement
REAR WINDOW WIPER AND WASHER SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Sensors and Switches - Wiper and Washer Systems > Wiper
Switch > Component Information > Locations
Wiper Switch: Locations
Wiper/Washer System Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Sensors and Switches - Wiper and Washer Systems > Wiper
Switch > Component Information > Locations > Page 17678
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Sensors and Switches - Wiper and Washer Systems > Wiper
Switch > Component Information > Locations > Page 17679
Windshield Wiper Washer Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Sensors and Switches - Wiper and Washer Systems > Wiper
Switch > Component Information > Service and Repair > Wipers/Washer Switch Replacement
Wiper Switch: Service and Repair Wipers/Washer Switch Replacement
WIPERS/WASHER SWITCH REPLACEMENT
REMOVAL PROCEDURE
1. Remove the steering column trim covers. 2. Disconnect the wipers/washer switch connector.
3. Depress the locking tabs and remove the wiper/washer switch.
INSTALLATION PROCEDURE
1. Install the wipers/washer switch to the steering column.Ensure the locking tabs are fully
engaged. 2. Connect the wipers/washer switch harness connector. 3. Install the steering column
trim covers.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Sensors and Switches - Wiper and Washer Systems > Wiper
Switch > Component Information > Service and Repair > Wipers/Washer Switch Replacement > Page 17682
Wiper Switch: Service and Repair Rear Window Wiper and Washer Switch Replacement
REAR WINDOW WIPER AND WASHER SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Hose > Component Information >
Service and Repair > Windshield Washer Hose Replacement
Windshield Washer Hose: Service and Repair Windshield Washer Hose Replacement
WINDSHIELD WASHER HOSE REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Hose > Component Information >
Service and Repair > Windshield Washer Hose Replacement > Page 17687
Windshield Washer Hose: Service and Repair Rear Washer Hose Replacement
REAR WASHER HOSE REPLACEMENT
REAR WASHER HOSE ROUTING
The rear washer hose is a component of the main body wire harness assembly. The rear washer
hose is a hard plastic convoluted tube that is wrapped in the electrical tape along with the main
body wiring harness. It starts underhood where it connects to the rear washer solvent container
hose, this is rubber tubing. The rear washer hose routes into the main body wire harness
underhood and passes through the front of the dash. The rear washer hose runs inside the vehicle
interior along the left side rocker and over the right side at the 2nd bar beneath the front seats. It
proceeds over the right side wheel housing and up the right side pillar where it connects to the
washer nozzle hose, at the top of the lift gate opening.
REMOVAL PROCEDURE
1. Locate the damaged section of the rear washer hose, this will be hard plastic convoluted tubing.
2. If the leak is located inside the main body wire harness, cut back the wire harness electrical tape
to expose the damaged section. 3. Cut out the damaged section of the rear washer hose.
INSTALLATION PROCEDURE
1. Replace the damaged section of the rear washer hose.
- Use a 9.5 mm (3/8 in) vacuum hose to replace damaged section.
- Overlap the rear washer hose, the plastic tubing, by 10 mm (0.39 in) on each end.
- Retain each end of the vacuum hose with a 100 mm (4 in) cable tie.
2. Verify the repair by activating the washer system and checking for leaks. 3. If the leak was
located inside the main body wire harness, use electrical tape to retain the repaired section to the
wire harness.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Hose > Component Information >
Service and Repair > Windshield Washer Hose Replacement > Page 17688
4. If the leak requires the rear washer hose to be removed in the front of dash grommet do the
following:
- Cut out the auxiliary washer hose hole from the grommet.
- Pass new section of the rear washer hose through the new grommet hose.
- Repair the hose on either side of the grommet.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Motor > Component Information >
Locations
Wiper/Washer System Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Motor > Component Information >
Locations > Page 17692
Windshield Wiper Motor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Pump > Component Information >
Technical Service Bulletins > Customer Interest for Windshield Washer Pump: > 08-08-43-005A > Jun > 08 >
Wipers/Washers - Low or No Washer Fluid Flow
Windshield Washer Pump: Customer Interest Wipers/Washers - Low or No Washer Fluid Flow
TECHNICAL
Bulletin No.: 08-08-43-005A
Date: June 19, 2008
Subject: Low, No Windshield Washer Flow (Replace Washer Pump Filter with Plain Grommet)
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
Built Prior to October 1, 2007
Supercede:
This bulletin is being revised to emphasize not to replace the washer pump motor and to check the
washer fuse. Please discard Corporate Bulletin Number 08-08-43-005 (Section 08 - Body and
Accessories).
Condition
Some customers may comment on low or no windshield washer flow.
Cause
This condition may be caused by a clogged washer pump filter. Extended use with the filter
clogged may have also caused the washer pump to burn out.
Correction
Technicians are to replace the pump filter with a new style plain grommet.
Important:
If further diagnosis leads to the washer pump motor being inoperative, replace the windshield
washer pump motor.
1. Remove the windshield washer container. Refer to SI for Windshield Washer Solvent Container
Replacement.
2. Remove the washer solvent filter grommet from the pump.
3. Replace the washer solvent pump filter grommet with a new part (see figure above).
4. Verify the washer fuse is not blown- refer to SI for the location of the fuse.
Important:
DO NOT replace the washer pump motor and kit unless further diagnosis leads you to an
inoperative pump.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Pump > Component Information >
Technical Service Bulletins > Customer Interest for Windshield Washer Pump: > 08-08-43-005A > Jun > 08 >
Wipers/Washers - Low or No Washer Fluid Flow > Page 17701
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Pump > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Windshield Washer Pump: > 08-08-43-005A > Jun > 08 >
Wipers/Washers - Low or No Washer Fluid Flow
Windshield Washer Pump: All Technical Service Bulletins Wipers/Washers - Low or No Washer
Fluid Flow
TECHNICAL
Bulletin No.: 08-08-43-005A
Date: June 19, 2008
Subject: Low, No Windshield Washer Flow (Replace Washer Pump Filter with Plain Grommet)
Models: 2007-2008 Chevrolet Equinox 2007-2008 Pontiac Torrent
Built Prior to October 1, 2007
Supercede:
This bulletin is being revised to emphasize not to replace the washer pump motor and to check the
washer fuse. Please discard Corporate Bulletin Number 08-08-43-005 (Section 08 - Body and
Accessories).
Condition
Some customers may comment on low or no windshield washer flow.
Cause
This condition may be caused by a clogged washer pump filter. Extended use with the filter
clogged may have also caused the washer pump to burn out.
Correction
Technicians are to replace the pump filter with a new style plain grommet.
Important:
If further diagnosis leads to the washer pump motor being inoperative, replace the windshield
washer pump motor.
1. Remove the windshield washer container. Refer to SI for Windshield Washer Solvent Container
Replacement.
2. Remove the washer solvent filter grommet from the pump.
3. Replace the washer solvent pump filter grommet with a new part (see figure above).
4. Verify the washer fuse is not blown- refer to SI for the location of the fuse.
Important:
DO NOT replace the washer pump motor and kit unless further diagnosis leads you to an
inoperative pump.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Pump > Component Information >
Technical Service Bulletins > All Technical Service Bulletins for Windshield Washer Pump: > 08-08-43-005A > Jun > 08 >
Wipers/Washers - Low or No Washer Fluid Flow > Page 17707
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Pump > Component Information >
Technical Service Bulletins > Page 17708
Wiper/Washer System Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Pump > Component Information >
Technical Service Bulletins > Page 17709
Windshield Washer Fluid Pump
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Pump > Component Information >
Service and Repair > Washer Pump Filter Grommet Replacement
Windshield Washer Pump: Service and Repair Washer Pump Filter Grommet Replacement
WASHER PUMP FILTER GROMMET REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Pump > Component Information >
Service and Repair > Washer Pump Filter Grommet Replacement > Page 17712
Windshield Washer Pump: Service and Repair Washer Pump Replacement
WASHER PUMP REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Reservoir > Component Information >
Service and Repair
Windshield Washer Reservoir: Service and Repair
WASHER SOLVENT CONTAINER REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Reservoir > Component Information >
Service and Repair > Page 17716
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Spray Nozzle > Component Information
> Service and Repair > Windshield Washer Nozzle Replacement
Windshield Washer Spray Nozzle: Service and Repair Windshield Washer Nozzle Replacement
WINDSHIELD WASHER NOZZLE REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Spray Nozzle > Component Information
> Service and Repair > Windshield Washer Nozzle Replacement > Page 17721
Windshield Washer Spray Nozzle: Service and Repair Rear Window Washer Nozzle Replacement
REAR WINDOW WASHER NOZZLE REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Spray Nozzle > Component Information
> Service and Repair > Windshield Washer Nozzle Replacement > Page 17722
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Switch > Component Information >
Locations
Windshield Washer Switch: Locations
Wiper/Washer System Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Switch > Component Information >
Locations > Page 17726
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Switch > Component Information >
Locations > Page 17727
Windshield Wiper Washer Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Switch > Component Information >
Service and Repair > Wipers/Washer Switch Replacement
Windshield Washer Switch: Service and Repair Wipers/Washer Switch Replacement
WIPERS/WASHER SWITCH REPLACEMENT
REMOVAL PROCEDURE
1. Remove the steering column trim covers. 2. Disconnect the wipers/washer switch connector.
3. Depress the locking tabs and remove the wiper/washer switch.
INSTALLATION PROCEDURE
1. Install the wipers/washer switch to the steering column.Ensure the locking tabs are fully
engaged. 2. Connect the wipers/washer switch harness connector. 3. Install the steering column
trim covers.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Windshield Washer Switch > Component Information >
Service and Repair > Wipers/Washer Switch Replacement > Page 17730
Windshield Washer Switch: Service and Repair Rear Window Wiper and Washer Switch
Replacement
REAR WINDOW WIPER AND WASHER SWITCH REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Arm > Component Information > Service and Repair >
Wiper Arm Replacement
Wiper Arm: Service and Repair Wiper Arm Replacement
WIPER ARM REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Arm > Component Information > Service and Repair >
Wiper Arm Replacement > Page 17735
Wiper Arm: Service and Repair Rear Window Wiper Arm Replacement
REAR WINDOW WIPER ARM REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Blade > Component Information > Technical Service
Bulletins > Glass/Body - Windshield Wiper Performance
Wiper Blade: Technical Service Bulletins Glass/Body - Windshield Wiper Performance
INFORMATION
Bulletin No.: 06-08-43-003C
Date: February 21, 2011
Subject: Windshield Wiper Performance, Cleaning Instructions and Maintenance
Models:
2012 and Prior GM Passenger Cars and Trucks (including Saturn) 2010 and Prior HUMMER H2,
H3 2010 and Prior Isuzu Medium Duty Trucks 2005-2009 Saab 9-7X
Supercede: This bulletin is being revised to add the 2011 and 2012 model year. Please discard
Corporate Bulletin Number 06-08-43-003B (Section 08 - Body and Accessories).
Wiper Concerns
Most concerns about windshield wiper performance are the result of dirty wiper blades, damaged
wiper blades, or worn out blades that are continuing to be used beyond their useful life. Depending
on environmental conditions, wiper blades can have dramatic differences in lifespan. Here are
some tips and guidelines to maximize wiper performance to avoid damage to the blades, and to
avoid unnecessary replacements.
Many wiper blades are being replaced under warranty with reviews showing there is nothing wrong
with the returned blades other than a build-up of dirt. Additionally, advise the customer to review
the information in their Owner Manual.
Inspection and Cleaning
Scheduled Maintenance
- Inspect your wipers rubber blades every 4-6 months or 12,000 km (7,500 mi) for wear, cracking or
contamination.
- Clean the windshield and the rubber wiper blades (using the procedure below) if the blades are
not clearing the glass satisfactorily. If this does not correct the problem, then replace the rubber
elements.
Cleaning Procedure
Important Avoid getting windshield washer fluid on your hands. Wear rubber gloves or avoid direct
contact with washer fluid.
Important Do not use gasoline, kerosene, or petroleum based products to clean wiper blades.
- Clean the rubber blades using a lint free cloth or paper towel soaked with windshield washer fluid
or a mild detergent. You should see significant amounts of dirt being removed on the cloth.
- Be sure to wash the windshield thoroughly when you clean the blades. Bugs, road grime, sap and
a buildup of car wash/wax treatments may additionally cause wiper streaking.
Tip For a larger scale buildup on the windshield, use a non-abrasive cleaner such as Bon-Ami*
(www.faultless.com) cleanser with a wet sponge, being sure to use plenty of water to avoid
scratching the glass. Flush the surface and body panels completely.
Tip For day-to-day exterior glass cleaning and to maintain a streak free appearance, suggest
Vehicle Care Glass Cleaner, P/N 88862560 (in Canada, 992727). This product is an easy to use
foaming cleaner that quickly removes dirt and grime from glass surfaces.
Tip Interior glass should be cleaned with plain, clean water to eliminate any film or haze on the
window and help prevent fogging, a major customer dissatisfier. Refer to Corporate Bulletin
Number 03-00-89-006D for more information. The New Vehicle Pre-Delivery Inspection form also
recommends using plain water to clean interior glass.
*"We believe this material to be reliable. There may be additional manufacturers of such material.
General Motors does not endorse, indicate any preference for or assume any responsibility for the
products or equipment from these firms or any such items which may be available from other
sources.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Blade > Component Information > Technical Service
Bulletins > Glass/Body - Windshield Wiper Performance > Page 17740
Avoiding Wiper Damage
The following are major contributors to wiper damage. Some of these you can control and others
are environmental concerns.
- Extremely dusty areas (such as driving on dirt roads) may cause the wipers rubber edge to wear
quickly and unevenly.
- Sand and salt used on roads for increasing winter traction and ice control will cause the wiper
blades to wear quicker. Areas with significant snowfall require more frequent blade replacements.
- Heat and time may cause the rubber blades to take a "permanent set" resulting in the rubber not
flexing and turning over uniformly. This condition may result in streaking and/or unwiped areas.
- Rubber blades are easily cut or torn when using ice scrapers. Likewise pulling blades up off a
frozen windshield can tear the rubber. Exercise caution when clearing ice and snow.
- Using your wipers to "wear through" frost and ice, instead of allowing the defrosters to melt the
ice, can dull, nick or tear the rubber blades.
- Banging wipers on the glass to remove ice and snow may cause the blade to bend, dislodging the
rubber and causing potential scratching of the windshield.
- Ice can form in the pin joints of the wipers, which can cause streaking and unwiped areas. To
remove ice from pin joints, compress the blade and rubber edge with your hand to loosen the
frozen joints. Consider using Winter Blades that have a rubber cover to avoid this condition.
Note
GM does not recommend the use of any spray on/wipe on windshield treatments or washer fluid
additives. The variation in friction that results on the glass from the use of these products causes
wipers to chatter and have premature wear.
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Blade > Component Information > Service and Repair
> Procedures
Wiper Blade: Procedures
BLADE ELEMENT CLEANING
Lift each blade assembly off of the windshield and clean the element with a cloth saturated with full
strength washer solvent. Hold the blade in one hand and wipe the element with the saturated cloth
until the black residue disappears. Then rinse the blade assembly elements with clean drinkable
water.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Blade > Component Information > Service and Repair
> Procedures > Page 17743
Wiper Blade: Removal and Replacement
Wiper Arm Blade Replacement
WIPER ARM BLADE REPLACEMENT
Wiper Blade Element Replacement
WIPER BLADE ELEMENT REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Blade > Component Information > Service and Repair
> Procedures > Page 17744
Rear Window Wiper Blade Replacement
REAR WINDOW WIPER BLADE REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Blade > Component Information > Service and Repair
> Procedures > Page 17745
Rear Window Wiper Blade Element Replacement
REAR WINDOW WIPER BLADE ELEMENT REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Blade > Component Information > Service and Repair
> Procedures > Page 17746
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Gear Box > Component Information > Service and
Repair
Wiper Gear Box: Service and Repair
AIR INLET GRILLE PANEL REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Technical Service
Bulletins > Customer Interest for Wiper Motor: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn
Signal Lever Inop
Wiper Motor: Customer Interest Wipers - Wipers Work On One Speed/Turn Signal Lever Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Technical Service
Bulletins > Customer Interest for Wiper Motor: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One Speed/Turn
Signal Lever Inop > Page 17758
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wiper Motor: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One
Speed/Turn Signal Lever Inop
Wiper Motor: All Technical Service Bulletins Wipers - Wipers Work On One Speed/Turn Signal
Lever Inop
Bulletin No.: 07-08-43-006
Date: July 12, 2007
TECHNICAL
Subject: Windshield Wipers Work On One Speed Only or Controls On Turn Signal/Multifunction
Lever are Inoperative (Replace Windshield Wiper Motor and BCM)
Models: 2007 Chevrolet Equinox 2007 Pontiac Torrent
Condition
Some customers may comment that the windshield wipers only work on one speed only. Others
may comment that the controls on the turn signal/multifunction lever are inoperative.
Cause
These conditions may be caused by the wiper motor inducing a voltage spike that causes an
internal failure in the Body Control Module (BCM).
Correction
Technicians are to replace the BCM and the windshield wiper motor. Refer to the Body Control
Module Replacement (SI Document ID # 1739665), Body Control Module Programming and Setup
(SI Document ID # 1767502) and Windshield Wiper Motor Replacement (SI Document ID #
1725748) procedures in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Technical Service
Bulletins > All Technical Service Bulletins for Wiper Motor: > 07-08-43-006 > Jul > 07 > Wipers - Wipers Work On One
Speed/Turn Signal Lever Inop > Page 17764
Disclaimer
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Technical Service
Bulletins > Page 17765
Wiper/Washer System Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions
Wiper Motor: Diagram Information and Instructions
Electrical Symbols
Electrical Symbols Part 1
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17768
Electrical Symbols Part 2
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17769
Electrical Symbols Part 3
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17770
Electrical Symbols Part 4
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17771
Electrical Symbols Part 5
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17772
Electrical Symbols Part 6
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17773
Electrical Symbols Part 7
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17774
Electrical Symbols Part 8
Utility/Van Zoning
UTILITY/VAN ZONING
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17775
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that
correspond to where they are located in the vehicle. The table explains the numbering system.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17776
Wiper Motor: Diagnostic Aids
Arrows and Symbols
Arrows and Symbols
This Service data uses various symbols in order to describe different service operations.
Arrows and Symbols
1 - Front of Vehicle 2 - View Detail 2 - View Detail 3 - Ambient Air Mixed With Another Gas or
Indicate Temperature Change 4 - Motion or Direction 5 - View Angle 6 - Dimension (1:2) 7 Ambient/Clean Air Flow or Cool Air Flow 8 - Lubrication Point - Oil or Fluid 9 - Task Related 10 Sectioning (1:3) 11 - Gas Other Than Ambient Air or Hot Air Flow 12 - Lubrication Point - Grease or
Jelly 13 - Multidirectional Arrow
Basic Knowledge Required
GENERAL ELECTRICAL DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
Without a basic knowledge of electricity, it will be difficult to use the diagnostic procedures
contained in the service manual. You should understand the basic theory of electricity, and know
the meaning of voltage (volts), current (amps), and resistance (ohms). You should also be able to
read and understand a wiring diagram, as well as understand what happens in a circuit with an
open or a shorted wire.
Decimal and Metric Equivalents
Decimal and Metric Equivalents
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17777
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17778
Checking Aftermarket Accessories
CHECKING AFTERMARKET ACCESSORIES
Do not connect aftermarket accessories into the following circuits:
- CAUTION: Refer to SIR Caution.
SIR circuits, all such circuits are indicated on circuit diagrams with the SIR symbol.
- NOTE: Refer to OBD II Symbol Description Notice.
OBD II circuits, all such circuits are indicated on circuit diagrams with the OBD II symbol.
Always check for aftermarket accessories (non-OEM) as the first step in diagnosing electrical
problems. If the vehicle is so equipped, disconnect the system to verify that these add-on
accessories are not the cause of the problems.
Possible causes of vehicle problems related to aftermarket accessories include:
- Power feeds connected to points other than the battery
- Antenna location
- Transceiver wiring located too close to vehicle electronic modules or wiring
- Poor shielding or poor connectors on antenna feed line
- Check for recent service bulletins detailing installation guidelines for aftermarket accessories.
Circuit Protection - Circuit Breakers
CIRCUIT PROTECTION - CIRCUIT BREAKERS
A circuit breaker is a protective device that is designed to open the circuit when a current load is in
excess of the rated breaker capacity. If there is a short or other type of overload condition in the
circuit, the excessive current will open the circuit between the circuit breaker terminals. Two types
of circuit breakers are used.
Circuit Breaker This type opens when excessive current passes through it for a period of time. It
closes again after a few seconds, and if the cause of the high current is still present, it will open
again. The circuit breaker will continue to cycle open and closed until the condition causing the high
current is removed.
Positive Temperature Coefficient (PTC) Circuit Breaker This type greatly increases its resistance
when excessive current passes through it. The excessive current heats the PTC device, as the
device heats its
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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resistance increases. Eventually the resistance gets so high that the circuit is effectively open.
Unlike the ordinary circuit breaker the PTC unit will not reset until the circuit is opened, by removing
the voltage from its terminals. Once the voltage is removed the circuit breaker will re-close within a
second or 2.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
Fuse Types
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is
an excessive amount of current flowing through a circuit the fusible element will melt and create an
open or incomplete circuit. Fuses are an one time protection device and must be replaced each
time the circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and
examine the element in the fuse for an open (2). If not broken (1), also check for continuity using a
DMM or a continuity tester. If the element is open or continuity is suspect, replace the fuse with one
of equal current rating.
Circuit Protection - Fusible Links
CIRCUIT PROTECTION - FUSIBLE LINKS
Fusible link is wire designed to melt and break continuity when excessive current is applied. It is
often located between or near the battery and starter or
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electrical center. Use a continuity tester or a DMM at each end of the wire containing the fusible
link in order to determine if it is broken. If broken, it must be replaced with fusible link of the same
gage size.
Repairing a Fusible Link
IMPORTANT: Fusible links cut longer than 225 mm (approximately 9 in) will not provide sufficient
overload protection.
Refer to Splicing Copper Wire Using Splice Clips.
Inducing Intermittent Fault Conditions
INDUCING INTERMITTENT FAULT CONDITIONS
TOOLS REQUIRED
J 25070 Heat Gun
Many intermittent open or shorted circuits are affected by harness/connector movement that is
caused by vibration, engine torque, bumps/rough pavement, etc. In order to duplicate the
customer's concern, it may be necessary to manipulate the wiring harness if the malfunction
appears to be vibration related. Manipulation of a circuit can consist of a wide variety of actions,
including: Wiggling the harness
- Disconnecting a connector and reconnecting
- Stressing the mechanical connection of a connector
- Pulling on the harness or wire in order to identify a separation/break inside the insulation
- Relocating a harness or wires
All these actions should be performed with some goal in mind. For instance, with a scan tool
connected, wiggling the wires may uncover a faulty input to the control module. The snapshot
option would be appropriate here. Refer to Scan Tool Snapshot Procedure. Another option is, with
the component commanded ON and OFF by the scan tool, move related connectors and wiring
and observe the component operation. With the engine running, move related connectors and
wiring while monitoring engine operation. If harness or connector movement affects the data
displayed, component/system operation, or engine operation, inspect and repair the
harness/connections as necessary.
You may need to load the vehicle in order to duplicate the concern. This may require the use of
weights, floorjacks, jackstands, frame machines, etc. In these cases you are attempting to
duplicate the concern by manipulating the suspension or frame. This method is useful in finding
harnesses that are too short and their connectors pull apart enough to cause a poor connection. A
DMM set to Peak Min/Max mode and connected to the suspect circuit while testing can yield
desirable results. Refer to Testing for Electrical Intermittents.
Certainly, using the senses of sight, smell, and hearing while manipulating the circuit can provide
good results as well.
There may be instances where circuit manipulation alone will not meet the required criteria for the
fault condition to appear. In such cases it may be necessary to expose the suspect circuit to other
conditions while manipulating the harness. Such conditions would include high moisture conditions,
along with exceptionally high or low temperatures. The following discusses how to expose the
circuit to these kinds of conditions.
SALT WATER SPRAY
Some compounds possess the ability to conduct electricity when dissolved in water such as
ordinary salt. By mixing table salt with water in sufficient quantities, you can enhance the
conductive properties of water so that any circuit which may be sensitive to moisture will more
readily fail when liberally sprayed with this mixture.
Mixing 0.35L (12 oz) of water with approximately 1 tablespoon of salt will yield a salt solution of 5
percent. Fill a normal spray bottle with this mixture. This mixture is sufficient to enhance the water's
own conductivity. This may cause the circuit to fail more easily when sprayed. Once the mixture is
completed, spray the suspect area liberally with the solution. Then, while monitoring either a scan
tool or DMM, manipulate the harness as discussed previously.
HIGH TEMPERATURE CONDITIONS
If the complaint tends to be heat related, you can simulate the condition using the J 25070.
Using the heat gun, you can heat up the suspected area or component. Manipulate the harnesses
under high temperature conditions while monitoring the scan tool or DMM to locate the fault
condition.
The high temperature condition may be achieved simply by test driving the vehicle at normal
operating temperature. If a heat gun is unavailable, consider this option to enhance your diagnosis.
This option does not allow for the same control, however.
LOW TEMPERATURE CONDITIONS
Depending on the nature of the fault condition, placing a fan in front of the vehicle while the vehicle
is in the shade can have the desired effect.
If this is unsuccessful, use local cooling treatments such as ice or a venturi type nozzle (one that
provides hot or cold air). This type of tool is capable of producing air stream temperatures down to
-18°C (0°F) from one end and +71°C (160°F) from the other. This is ideally suited for localized
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cooling needs.
Once the vehicle, component, or harness has been sufficiently cooled, manipulate the harness or
components in an effort to duplicate the concern.
DUPLICATING FAILURE CONDITIONS
- If none of the previous tests are successful, attempt to duplicate and/or capture the failure
conditions.
- Freeze Frame/Failure Records data, where applicable, contains the conditions that were present
when the DTC set. 1. Review and record Freeze Frame/Failure Records data. 2. Clear the DTCs
using the scan tool. 3. Turn the key to OFF and wait 15 seconds. 4. Operate the vehicle under the
same conditions that were noted in Freeze Frame/Failure Records data, as closely as possible.
The vehicle must
also be operating within the Conditions for Running the DTC. Refer to Conditions for Running the
DTC in the supporting text if a DTC is being diagnosed.
5. Monitor DTC Status for the DTC being tested. The scan tool will indicate Ran, when the enabling
conditions have been satisfied long enough
for the DTC to run. The scan tool will also indicate whether the DTC passed or failed.
- An alternate method is to drive the vehicle with the DMM connected to a suspected circuit. An
abnormal reading on the DMM when the concern occurs, may help you locate the concern.
Measuring Frequency
MEASURING FREQUENCY
NOTE: Refer to Test Probe NOTE.
The following procedure determines the frequency of a signal.
IMPORTANT: Connecting the DMM to the circuit before pressing the Hz button will allow the DMM
to autorange to an appropriate range.
1. Apply power to the circuit. 2. Set the rotary dial of the DMM to the V (AC) position. 3. Connect
the positive lead of the DMM to the circuit to be tested. 4. Connect the negative lead of the DMM to
a good ground. 5. Press the Hz button on the DMM. 6. The DMM will display the frequency
measured.
Measuring Voltage
MEASURING VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure measures the voltage at a selected point in a circuit. 1. Disconnect the
electrical harness connector for the circuit being tested, if necessary. 2. Enable the circuit and/or
system being tested. Use the following methods:
- Turn ON the ignition, with the engine OFF.
- Turn ON the engine.
- Turn ON the circuit and/or system with a scan tool in Output Controls.
- Turn ON the switch for the circuit and/or system being tested.
3. Select the V (AC) or V (DC) position on the DMM. 4. Connect the positive lead of the DMM to the
point of the circuit to be tested. 5. Connect the negative lead of the DMM to a good ground. 6. The
DMM displays the voltage measured at that point.
Measuring Voltage Drop
MEASURING VOLTAGE DROP
NOTE: Refer to Test Probe NOTE.
The following procedure determines the difference in voltage potential between 2 points.
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1. Set the rotary dial of the DMM to the V (DC) position. 2. Connect the positive lead of the DMM to
one point of the circuit to be tested. 3. Connect the negative lead of the DMM to the other point of
the circuit. 4. Operate the circuit. 5. The DMM displays the difference in voltage between the 2
points.
Probing Electrical Connectors
PROBING ELECTRICAL CONNECTORS
IMPORTANT: Always be sure to reinstall the connector position assurance (CPA) and terminal
position assurance (TPA) when reconnecting connectors or replacing terminals.
Frontprobe Disconnect the connector and probe the terminals from the mating side (front) of the
connector.
IMPORTANT: When probing female 0.64 terminals, it is important to use the correct adapter. There
have been some revisions to the test adapter for 0.64 terminals. The proper adapter for 0.64
terminals is the J 35616-64B which has a gold terminal and a black wire between the base and tip.
Failure to use the proper test adapter may result in damage to the terminal being tested and
improper diagnosis.
NOTE Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
Refer to the following table as a guide in selecting the correct test adapter for frontprobing
connectors:
Backprobe
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IMPORTANT: Backprobe connector terminals only when specifically required in diagnostic procedures.
- Do not backprobe a sealed (Weather Pack(R)) connector, less than a 280 series Metri-Pack
connector, a Micro-Pack connector, or a flat wire (dock and lock) connector.
- Backprobing can be a source of damage to connector terminals. Use care in order to avoid
deforming the terminal, either by forcing the test probe too far into the cavity or by using too large
of a test probe.
- After backprobing any connector, inspect for terminal damage. If terminal damage is suspected,
test for proper terminal contact.
Do not disconnect the connector and probe the terminals from the harness side (back) of the
connector.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of what a control module on the vehicle was receiving for information while
the snapshot is being made. A snapshot may be used to analyze the data during the time a vehicle
condition is current. This allows you to concentrate on making the condition occur, rather than
trying to view all the data in anticipation of the fault. The snapshot contains information around a
trigger point that you have determined. Only a single data list may be recorded in each snapshot.
The Scan Tool has the ability to store 2 snapshots. The ability to record 2 snapshots allows
comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a
first-in, first-out basis. If a third snapshot is taken, the first snapshot stored in the memory will be
lost.
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Snapshots can be 1 of 2 types:
- Snapshot - taken from the Snapshot menu choice
- Quick Snapshot - taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1200
frames of information. Because the snapshot is recorded onto the memory card, snapshots are not
lost if the Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis.
The snapshot plot feature can help you to quickly determine if a sensor is outside of its expected
values by plotting 3 parameters at a time. The data will be displayed both graphically and
numerically showing the minimum and maximum values for all frames captured. This is helpful,
especially if the fault occurs only once and does not set a DTC.
Testing for a Short to Voltage
TESTING FOR A SHORT TO VOLTAGE
NOTE: Refer to Test Probe Notice.
The following procedure tests for a short to voltage in a circuit. 1. Set the rotary dial of the DMM to
the V (DC) position. 2. Connect the positive lead of the DMM to one end of the circuit to be tested.
3. Connect the negative lead of the DMM to a good ground. 4. Turn ON the ignition and operate all
accessories. 5. If the voltage measured is greater than 1 volt, there is a short to voltage in the
circuit.
Testing for Continuity
TESTING FOR CONTINUITY
NOTE: Refer to Test Probe NOTE.
The following procedures verify good continuity in a circuit. With a DMM 1. Set the rotary dial of the
DMM to the ohm position. 2. Disconnect the power feed (i.e. fuse, control module) from the suspect
circuit. 3. Disconnect the load. 4. Press the MIN MAX button on the DMM. 5. Connect one lead of
the DMM to one end of the circuit to be tested. 6. Connect the other lead of the DMM to the other
end of the circuit. 7. If the DMM displays low or no resistance and a tone is heard, the circuit has
good continuity.
With a Test Lamp
IMPORTANT: Only use the test lamp procedure on low impedance power and ground circuits.
1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the
load. 3. Connect one lead of the test lamp to one end of the circuit to be tested. 4. Connect the
other lead of the test lamp to battery positive voltage. 5. Connect the other end of the circuit to
ground. 6. If the test lamp illuminates (full intensity), then the circuit has good continuity.
Testing for Electrical Intermittents
TESTING FOR ELECTRICAL INTERMITTENTS
Perform the following procedures while wiggling the harness from side to side. Continue this at
convenient points (about 6 inches apart) while watching the test equipment.
- Testing for Short to Ground
- Testing for Continuity
- Testing for a Short to Voltage
If the fault is not identified, perform the procedure below using the MIN MAX feature on the J 39200
DMM. This feature allows you to manipulate the circuit without having to watch the J 39200. The J
39200 will generate an audible tone when a change is detected.
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IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J
39200 can monitor current, resistance or voltage while recording the minimum (MIN), and
maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of
a suspected circuit to the other. 2. Set the rotary dial of the J 39200 to the V (AC) or V (DC)
position. 3. Press the range button of the J 39200 in order to select the desired voltage range. 4.
Press the MIN MAX button of the J 39200. The J 39200 displays 100 ms RECORD and emits an
audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value
in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling
the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has
been recorded. 7. Press the MIN MAX button once in order to display the MAX value and note the
value. 8. Press the MIN MAX button again in order to display the MIN value and note the value. 9.
Determine the difference between the MIN and MAX values.
- If the variation between the recorded MIN and MAX voltage values is 1 volt or greater an
intermittent open or high resistance condition exists. Repair the condition as necessary.
- If the variation between the recorded MIN and MAX voltage values is less than 1 volt an
intermittent open or high resistance condition does not exist.
Testing for Intermittent Conditions and Poor Connections
TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS
TOOLS REQUIRED
- J 35616 GM-Approved Terminal Test Kit
- J-38125 Terminal Repair Kit
When the condition is not currently present, but is indicated in DTC history, the cause may be
intermittent. An intermittent may also be the cause when there is a customer complaint, but the
symptom cannot be duplicated. Refer to the Symptom Table of the system that is suspect of
causing the condition before trying to locate an intermittent condition.
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the
following items: Wiring broken inside the insulation
- Poor connection between the male and female terminal at a connector
- Poor terminal to wire connection-Some conditions which fall under this description are poor
crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion
in the wire to terminal contact area, etc.
- Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The
conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff
sections of wire in the suspect circuits.
- Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent
open or short as the bare area touches other wiring or parts of the vehicle.
- Wiring that comes in contact with hot or exhaust components
- Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in
order to verify the customer concern.
- Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high
resistance, short to ground, and short to voltage conditions.
- Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data
Recorder operation.
TESTING FOR PROPER TERMINAL CONTACT
It is important to test terminal contact at the component and any inline connectors before replacing
a suspect component. Mating terminals must be inspected to ensure good terminal contact. A poor
connection between the male and female terminal at a connector may be the result of
contamination or deformation.
Contamination may be caused by the connector halves being improperly connected. A missing or
damaged connector seal, damage to the connector itself, or exposing the terminals to moisture and
dirt can also cause contamination. Contamination, usually in the underhood or underbody
connectors, leads to terminal corrosion, causing an open circuit or intermittently open circuit.
Deformation is caused by probing the mating side of a connector terminal without the proper
adapter. Always use the J 35616 when probing connectors. Other causes of terminal deformation
are improperly joining the connector halves, or repeatedly separating and joining the connector
halves. Deformation, usually to the female terminal contact tang, can result in poor terminal contact
causing an open or intermittently open circuit.
TESTING FOR PROPER TERMINAL CONTACT IN BUSSED ELECTRICAL CENTERS (BEC)
It is very important to use the correct test adapter when testing for proper terminal contact of fuses
and relays in a bussed electrical center (BEC). Use J-35616-35 to test for proper terminal contact.
Failure to use J-35616-35 can result in improper diagnosis of the BEC.
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Follow the procedure below in order to test terminal contact: 1. Separate the connector halves. 2.
Visually inspect the connector halves for contamination. Contamination may result in a white or
green build-up within the connector body or
between terminals. This causes high terminal resistance, intermittent contact, or an open circuit. An
underhood or underbody connector that shows signs of contamination should be replaced in its
entirety: terminals, seals, and connector body.
3. Using an equivalent male terminal from the J-38125, test that the retention force is significantly
different between a good terminal and a suspect
terminal. Replace the female terminal in question.
FLAT WIRE (DOCK AND LOCK) CONNECTORS
There are no serviceable parts for flat wire (dock and lock) connectors on the harness side or the
component side.
Follow the procedure below in order to test terminal contact: 1. Remove the component in question.
2. Visually inspect each side of the connector for signs of contamination. Avoid touching either side
of the connector as oil from your skin may be a
source of contamination as well.
3. Visually inspect the terminal bearing surfaces of the flat wire circuits for splits, cracks, or other
imperfections that could cause poor terminal
contact. Visually inspect the component side connector to ensure that all of the terminals are
uniform and free of damage or deformation.
4. Insert the appropriate adapter from the on the flat wire harness connector in order to test the
circuit in question.
CONTROL MODULE/COMPONENT VOLTAGE AND GROUNDS
Poor voltage or ground connections can cause widely varying symptoms. Test all control module voltage supply circuits. Many vehicles have multiple circuits supplying
voltage to a control module. Other components in the system may have separate voltage supply
circuits that may also need to be tested. Inspect connections at the module/component connectors,
fuses, and any intermediate connections between the voltage source and the module/component.
A test lamp or a DMM may indicate that voltage is present, but neither tests the ability of the circuit
to carry sufficient current. Ensure that the circuit can carry the current necessary to operate the
component. Refer to Circuit Testing and Power Distribution Schematics.
- Test all control module ground and system ground circuits. The control module may have multiple
ground circuits. Other components in the system may have separate grounds that may also need
to be tested. Inspect grounds for clean and tight connections at the grounding point. Inspect the
connections at the component and in splice packs, where applicable. Ensure that the circuit can
carry the current necessary to operate the component. Refer to Circuit Testing and Ground
Distribution Schematics.
TEMPERATURE SENSITIVITY
- An intermittent condition may occur when a component/connection reaches normal operating
temperature. The condition may occur only when the component/connection is cold, or only when
the component/connection is hot.
- Freeze Frame, Failure Records, Snapshot, or Vehicle Data Recorder data may help with this type
of intermittent condition, where applicable.
- If the intermittent is related to heat, review the data for a relationship with the following: High ambient temperatures
- Underhood/engine generated heat
- Circuit generated heat due to a poor connection, or high electrical load
- Higher than normal load conditions, towing, etc.
- If the intermittent is related to cold, review the data for the following: Low ambient temperatures-In extremely low temperatures, ice may form in a connection or
component. Inspect for water intrusion.
- The condition only occurs on a cold start.
- The condition goes away when the vehicle warms up.
- Information from the customer may help to determine if the trouble follows a pattern that is
temperature related.
- If temperature is suspected of causing an intermittent fault condition, attempt to duplicate the
condition. Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions
required.
ELECTROMAGNETIC INTERFERENCE (EMI) AND ELECTRICAL NOISE
Some electrical components/circuits are sensitive to electromagnetic interference (EMI) or other
types of electrical noise. Inspect for the following conditions: A misrouted harness that is too close to high voltage/high current devices such as secondary
ignition components, motors, generator etc-These components may induce electrical noise on a
circuit that could interfere with normal circuit operation.
- Electrical system interference caused by a malfunctioning relay, or a control module driven
solenoid or switch-These conditions can cause a sharp electrical surge. Normally, the condition will
occur when the malfunctioning component is operating.
- Improper installation of non-factory or aftermarket add on accessories such as lights, 2-way
radios, amplifiers, electric motors, remote starters, alarm systems, cell phones, etc-These
accessories may lead to interference while in use, but do not fail when the accessories are not in
use.
- Test for an open diode across the A/C compressor clutch and for other open diodes. Some relays
may contain a clamping diode.
- The generator may be allowing AC noise into the electrical system.
INCORRECT CONTROL MODULE
- There are only a few situations where reprogramming a control module is appropriate: A new service control module is installed.
- A control module from another vehicle is installed.
- Revised software/calibration files have been released for this vehicle.
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- IMPORTANT: DO NOT re-program the control module with the SAME software/calibration files
that are already present in the control module. This is not an effective repair for any type of
concern.
Verify that the control module contains the correct software/calibration. If incorrect programming is
found, reprogram the control module with the most current software/calibration. Refer to Control
Module References for replacement, setup, and programming. See: Testing and
Inspection/Programming and Relearning
Testing for Short to Ground
TESTING FOR SHORT TO GROUND
NOTE: Refer to Test Probe NOTE.
The following procedures test for a short to ground in a circuit. With a DMM 1. Remove the power
feed (i.e. fuse, control module) from the suspect circuit. 2. Disconnect the load. 3. Set the rotary
dial of the DMM to the ohm position. 4. Connect one lead of the DMM to one end of the circuit to be
tested. 5. Connect the other lead of the DMM to a good ground. 6. If the DMM does NOT display
infinite resistance (OL), there is a short to ground in the circuit.
With a Test Lamp 1. Remove the power feed (i.e. fuse, control module) from the suspect circuit. 2.
Disconnect the load. 3. Connect one lead of the test lamp to battery positive voltage. 4. Connect
the other lead of the test lamp to one end of the circuit to be tested. 5. If the test lamp illuminates,
there is a short to ground in the circuit.
Fuse Powering Several Loads 1. Review the system schematic and locate the fuse that is open. 2.
Open the first connector or switch leading from the fuse to each load. 3. Connect a DMM across
the fuse terminals (be sure that the fuse is powered).
- When the DMM displays voltage the short is in the wiring leading to the first connector or switch.
- If the DMM does not display voltage
4. Close each connector or switch until the DMM displays voltage in order to find which circuit is
shorted.
Troubleshooting with a Digital Multimeter
TROUBLESHOOTING WITH A DIGITAL MULTIMETER
NOTE: Refer to Test Probe NOTE.
IMPORTANT: Circuits which include any solid state control modules, such as the powertrain
control module (PCM), should only be tested with a 10 megohm or higher impedance digital
multimeter such as the J 39200 Digital Multimeter (DMM).
The J 39200 instruction manual is a good source of information and should be read thoroughly
upon receipt of the DMM as well as kept on hand for future reference.
A DMM should be used instead of a test lamp in order to test for voltage in high impedance circuits.
While a test lamp shows whether voltage is present if the impedance is low enough, a DMM
indicates how much voltage is present. In other words, if there is not enough current, the test lamp
will not illuminate even though voltage is present.
The ohmmeter function on a DMM shows how much resistance exists between 2 points along a
circuit. Low resistance in a circuit means good continuity.
IMPORTANT: Disconnect the power feed from the suspect circuit when measuring resistance with
a DMM. This prevents incorrect readings. DMMs apply such a small voltage to measure resistance
that the presence of voltages can upset a resistance reading.
Diodes and solid state components in a circuit can cause a DMM to display a false reading. To find
out if a component is affecting a measurement take a reading once, then reverse the leads and
take a second reading. If the readings differ the solid state component is affecting the
measurement.
Following are examples of the various methods of connecting the DMM to the circuit to be tested: Backprobe both ends of the connector and either hold the leads in place while manipulating the
connector or tape the leads to the harness for continuous monitoring while you perform other
operations or test driving. Refer to Probing Electrical Connectors.
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- Disconnect the harness at both ends of the suspected circuit where it connects either to a
component or to other harnesses.
- If the system that is being diagnosed has a specified pinout or breakout box, it may be used in
order to simplify connecting the DMM to the circuit or for testing multiple circuits quickly.
Troubleshooting With A Test Lamp
TROUBLESHOOTING WITH A TEST LAMP
TOOLS REQUIRED
J 35616-200 Test Light - Probe Kit
NOTE: Refer to Test Probe NOTE.
A test lamp can simply and quickly test a low impedance circuit for voltage. A DMM should be used
instead of a test lamp in order to test for voltage in high impedance circuits. While a test lamp
shows whether voltage is present if the impedance is low enough, a DMM indicates how much
voltage is present. In other words, if there is not enough current, the test lamp will not illuminage
even though voltage is present.
The J 35616-200 is Micro-Pack compatible and comprised of a 12-volt light bulb with an attached
pair of leads.
To properly operate this tool use the following procedures.
When testing for voltage: 1. Attach one lead to ground. 2. Touch the other lead to various points
along the circuit where voltage should be present. 3. When the bulb illuminates, there is voltage at
the point being tested.
When testing for ground: 1. Attach one lead to battery positive voltage. 2. Touch the other lead to
various points along the circuit where ground should be present. 3. When the bulb illuminates,
there is ground at the point being tested.
Using Connector Test Adapters
USING CONNECTOR TEST ADAPTERS
NOTE: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal.
The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor
connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal
Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe
terminals.
When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice
is the correct size for the connector terminal. Do not visually choose the terminal test adapter
because some connector terminal cavities may appear larger than the actual terminal in the cavity.
Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved
Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct
adapter along with the connector end view for terminal size.
AFL/ECP Connectors
AFL/EPC CONNECTORS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
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1. For connectors with a bolt in the dress cover, turn the bolt counterclockwise to remove the
connector from the component.
2. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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3. Slide the lever lock forward while pressing down on the lever lock release tab.
View showing depressing of the lever lock release tab.
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View of connector in released position. 4. Disconnect the connector from the component. 5. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
Release the rear lower half of the wiredress cover.
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Release the tabs that are holding the wiredress cover to the connector body. 6. Remove the nose
piece by inserting a small flat-blade tool into the slots on both ends of the connector body. Gently
pry the nose piece out of the
connector. J 38125-216 can also be used to remove the nose piece.
Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by lifting the terminal
retaining tabs on the inside of the connector. See the release tool cross reference in the Reference
Guide of the J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Bosch Connectors (BSK)
BOSCH CONNECTORS (BSK)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component. 2. Remove the wire dress cover, if necessary. 3.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
4. Insert the J 38125-561 tool into the 2 cavities on each side of the terminal at the front of the
connector and push until you feel the tool disengage
the terminal retainers. See the release tool cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
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5. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Bosch Connectors (ECM)
BOSCH CONNECTORS (ECM)
TOOLS REQUIRED
J-38125Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
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2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-blade tool to
release the locking tabs and remove the dress
cover.
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4. The terminal positive assurance (TPA) is located in the front of the connector.
5. Use a small flat-blade tool to remove TPA from the connector.
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6. Use the J 38125-213 or the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
IMPORTANT: Ensure that the dress cover and connector body are both in the released position
before reassembling. Failure to do so may cause damage to the connector and component.
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
Bosch Connectors (0.64)
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BOSCH CONNECTORS (0.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the lever lock on the wire dress cover. While pressing the lock, pull the lever over and
past the lock until the lever is at the end of its travel. 2. Disconnect the connector from the
component. 3. Pull the rubber boot that covers the wires back to expose the end of the connector
dress cover. 4. Place the connector locking lever in the center of the connector.
5. Locate the 2 dress cover locking tabs that are on the wire end of the connector. Insert a small
flat-bladed tool between the cover and connector
body and pry up.
6. Locate the 2 dress cover locking tabs located on the opposite side of the connector. Insert a
small flat-bladed tool between the cover at the
connector end and pry up.
7. Remove the dress cover. 8. Cut the tie wrap on the wire bundle.
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9. Remove the terminal position assurance (TPA) by inserting a small flat-bladed tool into the small
slot in the end of the slider and pushing on the
TPA until it comes out of the connector. When the TPA exits the opposite side of the connector,
gasp the TPA and pull it completely out of the connector.
10. Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
11. Insert the J 38125-560 (GM P/N 15314260) into the 2 triangular cavities on each side of the
terminal at the front of the connector. See the release
tool cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
12. Carefully pull the terminal out of the connector. Always remember never use force when pulling
a terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
TERMINAL REPLACEMENT PROCEDURE
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1. Prior to installation the terminal must be aligned so the (1) coding lugs align with the (2) coding
grooves on the connector. 2. Once the terminal is aligned, slide the terminal into the cavity until the
retainer has engaged in the cavity of the connector. 3. Slide the TPA in the connector body and
seat it using a small flat bladed tool. The TPA is seated when it is flush with the contact housing. 4.
Secure the wires to the connector body using a tie wrap and replace the dress cover and grommet.
Bosch Connectors (2.8 JPT)
BOSCH CONNECTORS (2.8 JPT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Pull out the slider on the connector position assurance (CPA) until it is at the end of its travel. 2.
Disconnect the connector from the component. 3. Remove the wire dress cover, if necessary. 4.
Push the wire side of the terminal that is being removed toward the connector and hold it in
position.
5. Insert the J 38125-557 (GM P/N 12122378) into the 2 cavities on each side of the terminal at the
front of the connector and push until you feel the
tool disengage the terminal retainers. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
6. Carefully pull the terminal out of the connector. Always remember never use force when pulling a
terminal out of a connector. If the terminal is
difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
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Connector Position Assurance Locks
CONNECTOR POSITION ASSURANCE LOCKS
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
the connector. CPAs are used in various connectors throughout the vehicle. CPAs are also used in
all SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate
apart. You must have the CPA in place in order to ensure good contact between the mating
terminals, of the connector.
Delphi Connectors (Micro .64)
DELPHI CONNECTORS (MICRO.64)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from Micro 64 connectors.
1. Locate the lever lock on the wire dress cover. While depressing the lock, pull the lever over and
past the lock. The lever lock may be located on
the top or sides of the wire dress cover.
View of a typical Micro 64 connector.
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Depress the lock and pull the lever over and past the lock.
View of the connector when released from the component.
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View of another type of Micro 64 connector.
Depress the locks that are located on both sides of the wiredress cover and pull the lever over and
past the locks.
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View of the connector when released from the component.
2. Disconnect the connector from the component.
3. Locate the dress cover locking tabs at the front of the connector. Using a small flat-blade tool
push down on one of the locking tabs and pull the
cover up until the dress cover releases. Repeat this procedure for the other locking tab.
4. Once the front 2 locks are unlocked, lift the front of the dress cover and pull it forward.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the small slot on the TPA and pushing
down until the TPA releases. Gently pry the TPA out of the connector.
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6. IMPORTANT: Be careful not to angle or rock the J 38125-21 tool when inserting it into the
connector or the tool may break.
Insert the J 38125-21 (GM P/N 15381651-2) tool into the round canal between the terminals
cavities at the front of the connector. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Follow the steps below in order to repair Micro 64 connector terminals.
The Micro 64 connectors have small terminals that are difficult to handle and hold when crimping.
In order to aid the technician when crimping these terminals, a new crimping tool was developed.
The J 38125-64 (M jaw) was developed to crimp Micro 64 terminals. The J 38125-64 crimping tool
has a terminal holding block that will hold the terminal in place while the terminal is being crimped.
The J 38125-64 crimping tool is also designed to crimp both the wire and the insulation at the same
time.
After the terminal is removed from the connector perform the following procedure in order to repair
Micro 64 terminals.
IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire is
long enough to reach the connector without putting a strain on the wire. If the wire is not long
enough, splice a small length of the same gage wire to the existing wire, then crimp the new
terminal on the added wire.
1. Cut the wire as close to the damaged terminal as possible. 2. Strip 5 mm (3/16 in) of insulation
from the wire.
3. Depress the spring loaded locator of the crimping tool until the terminal holder is completely
visible.
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4. Insert terminal into the appropriate terminal holder until it hits bottom and stops. The correct
terminal holder is determined by the wire size. Also
ensure that the terminals wings are pointing towards the former on the tool and the release locator.
5. Insert the stripped cable into the terminal. Insulation should be visible on both sides of the
terminal insulation wings. 6. Compress the handles until the ratchet automatically releases. 7.
Place the terminal into the appropriate cavity and assemble the connector.
Delphi Connectors (Micro-Pack 100W)
DELPHI CONNECTORS (MICRO-PACK 100W)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
There are 2 styles of Micro-Pack 100W connectors. These connectors are very similar but use
different terminals and have some minor physical differences also.
The first connector design of the Micro-Pack 100W (1) has a white connector interface that holds
the terminals. The second design of the Micro-Pack 100W (2) has a gray interface to hold the
terminals. Also, the first design has terminal cavities that are further apart (3 mm centerline) and
offset from the other row of terminal cavities in the connector. The second design has terminals
cavities that are closer together (2.54 mm centerline) and aligned vertically. One other way to
identify the second design is the thin strip of material that runs along the outside of the cavities.
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IMPORTANT: There are 2 styles of Micro-Pack 100W terminals which are very similar. Ensure that
you have the correct terminal before crimping the new terminal to the wire. The first design
connector uses the longer terminal (1) that has a raised area in front of the recess in the terminal.
The second design connector uses the shorter terminal without the raised area.
Follow the steps below in order to remove terminals from Micro-Pack 100W connectors. Some
Micro-Pack 100W connector disassembly procedures will vary. Use this procedure as a guide. 1.
Disconnect the connector from the component.
2. Locate the nose piece locking tabs that are positioned on the side of the connector nose piece.
The connector nose piece acts as a terminal positive
assurance (TPA) and may be referred to as such.
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3. Use a small flat-blade tool to push in one of the locking tabs while gently pulling on the same
side of the nose piece. 4. Repeat the procedure for the other locking tab and remove the nose
piece. 5. Remove the wire dress cover. The following is a general procedure for wire dress cover
removal. Use this procedure as a guide, some dress cover
removal procedures may vary.
6. Use fingers to squeeze the 2 locking legs of the cover.
7. Apply pressure and gently rock the cover until one locking leg is unseated.
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8. Continue to apply pressure and rock the cover until the second locking leg is unseated. Repeat
procedure for the other side of the dress cover and
remove the cover.
9. Use J 38125-12A (GM P/N 12094429) to gently lift the terminal retaining tab while gently pulling
the wire out of the back of the connector.
Always remember never use force when pulling a terminal out of a connector. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
10. If the terminal is severely bent or damaged, it may be possible on some connectors to push the
wire out of the front of the connector instead of
pulling it through. This will prevent damage to the internal seals of the connector. Once the terminal
is pushed out of the connector, cut the wire as close to the terminal as possible and pull the wire
through the connector.
TERMINAL REPAIR PROCEDURE
The Micro-Pack 100W connectors have small terminals that are difficult to handle and hold when
crimping. In order to aid the technician when crimping these terminals, a new crimping tool was
developed. The J 38125-101 (W jaw) crimping tool was developed to crimp Micro-Pack 100W
terminals. The J 38125-101 (W jaw) crimping tool has a terminal holding block that will hold the
terminal in place while the terminal is being crimped. After the terminal is removed from the
connector perform the following procedure in order to repair Micro-Pack 100 terminals. 1. Cut the
wire as close to the terminal as possible.
2. IMPORTANT: After cutting the damaged terminal from the wire, determine if the remaining wire
is long enough to reach the connector without
putting a strain on the wire. If the wire is not long enough, splice a small length of the same gage
wire to the existing wire, then crimp the new terminal on the added wire.
Strip 5 mm (3/16 in) of insulation from the wire.
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3. Depress the spring loaded locator of the J 38125-101 (W jaw) crimping tool until the terminal
holder is completely visible.
4. Insert the terminal into the crimp tool until the core wings are flush with the anvil on the crimp
tool. Be sure that the wings are pointed toward the
crimp tool former and release the spring locator. The locator will hold the terminal in place. Inspect
the alignment of the terminal wings with the crimp tool former. If the terminal wings are wider than
the crimp tool former, remove the terminal and bend the terminal wings in slightly.
5. Place stripped wire into terminal. 6. Crimp the new terminal to the wire. If a jam occurs, press the
emergency release to open applicator.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire perform the following procedure in order to replace
Micro-Pack 100 terminals. 1. Slide the new terminal into the correct cavity at the back of the
connector. 2. Push the terminal into the connector until it locks into place. The new terminal should
be even with the other terminals. Ensure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the Terminal Removal Procedure.
Delphi Connectors (Pull To Seat)
DELPHI CONNECTORS (PULL TO SEAT)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL
If the terminal is visibly damaged or is suspected of having a faulty connection, the terminal should
be replaced. Follow the steps below in order to repair pull-to-seat connectors:
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1. Remove the connector position assurance (CPA) device and/or the secondary lock. 2.
Disconnect the connector from the component or separate the connectors for in-line connectors. 3.
Remove the terminal position assurance (TPA) device. 4. Insert the proper pick or removal tool into
the front of the connector body.
5. IMPORTANT: On connectors with more than one terminal the service loop may not be large
enough to remove the terminal and crimp on a new
one. If the terminal wire does not have a large enough service loop for removal, cut the wire 5 cm
(2 in) behind the connector before removal.
Grasp the wire at the back of the connector body and gently push the terminal out the front of the
connector body.
TERMINAL REPAIR
1. If the wire needed to be cut in order to remove the terminal, gently push a small length of the
same size wire through the back of the connector
cavity until there is enough wire exposed in order to crimp on a new terminal. If the wire was not
cut, cut the existing wire as close to the old terminal as possible.
2. Strip 5 mm (3/16 in) of insulation from the wire. 3. Crimp a new terminal to the wire. 4. Solder the
crimp with rosin core solder.
TERMINAL INSTALLATION
1. Align the terminal and pull the wire from the back of the connector in order to seat the terminal.
2. If necessary, cut the new wire to proper length and splice with existing circuit. Refer to Splicing
Copper Wire Using Splice Sleeves. 3. If the connector is outside of the passenger compartment,
apply dielectric grease to the connector. 4. Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Push To Seat)
DELPHI CONNECTORS (PUSH TO SEAT)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL
Follow the steps below in order to repair push to seat connectors.
1. Remove the terminal position assurance (TPA) device, the connector position assurance (CPA)
device, and/or the secondary lock. 2. Separate the connector halves (1).
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3. Use the proper pick or removal tool (1) in order to release the terminal. See the release tool
cross reference in the Reference Guide of the J-38125
to ensure that the correct release tool is used.
4. Gently pull the cable and the terminal (2) out of the back of the connector.
5. Re-form the locking device if you are going to reuse the terminal (1). 6. To repair the terminal,
refer to TERMINAL REPAIR.
TERMINAL REPAIR
1. Slip the cable seal away from the terminal. 2. Cut the wire as close to the terminal as possible. 3.
Slip a new cable seal onto the wire. 4. Strip 5 mm (3/16 in) of insulation from the wire. 5. Crimp a
new terminal to the wire. 6. Solder the crimp with rosin core solder. 7. Slide the cable seal toward
the terminal. 8. Crimp the cable seal and the insulation. 9. If the connector is outside of the
passenger compartment, apply grease to the connector.
REINSTALLING TERMINAL
1. In order to reuse a terminal or lead assembly, refer to Wiring Repairs . 2. Ensure that the cable
seal is kept on the terminal side of the splice. 3. Insert the lead from the back until it catches. 4.
Install the TPA, CPA, and/or the secondary locks.
Delphi Connectors (Weather Pack)
DELPHI CONNECTORS (WEATHER PACK)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
The following is the proper procedure for the repair of Weather Pack(R) Connectors.
1. Separate the connector halves (1). 2. Open the secondary lock. A secondary lock aids in
terminal retention and is usually molded to the connector (1). 3. Grasp the wire and push the
terminal to the forward most position. Hold the wire in this position.
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4. Insert the Weather Pack(R) terminal removal tool J 38125-10A (GM P/N 12014012-1) into the
front (mating end) of the connector cavity until it
rests on the cavity shoulder (1).
5. Gently pull on the wire to remove the terminal through the back of the connector (2).
IMPORTANT: Never use force to remove a terminal from a connector.
6. Inspect the terminal and connector for damage. Repair as necessary. 7. Reform the lock tang (2)
and reset terminal in connector body. 8. Close secondary locks and join connector halves. 9. Verify
that circuit is complete and working satisfactorily.
10. Perform system check.
Delphi Connectors (12 Way)
DELPHI CONNECTORS (12-WAY)
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector.
1. Locate the lever lock on the wire dress cover. Remove the connector position assurance (CPA)
and slide the lever lock away from the connector
body.
2. Disconnect the connector from the component.
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3. Locate the dress cover locking tabs on the dress cover of the connector. Using a small flat-blade
tool release all of the locking tabs.
Release the lower wiredress cover locking tab.
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Release the upper wiredress cover locking tab. 4. Once the locks are unlocked, lift the dress cover
off.
5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Remove the TPA by inserting a small flat-blade tool into the locking tabs on both sides of the TPA.
Gently pry the TPA out of the connector.
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6. Remove the nose piece by inserting a small flat-blade tool into the locking tabs on both sides of
the nose piece. Gently pry the nose piece out of
the connector.
Insert the J 38125-12A (GM P/N 12094429) tool to release the terminals by inserting the tool into
the terminal release cavity. See the release tool cross reference in the Reference Guide of the
J-38125 to ensure that the correct release tool is used.
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7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Location of the terminal in the repair tray and the proper crimp tool can be found in the appropriate
connector end view.
FCI Connectors
FCI CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Slide the lever lock
forward while pressing down on the lever lock release tab.
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The release tab is located on the top of the wiredress cover.
View of connector in released position. 2. Disconnect the connector from the component. 3. Locate
the dress cover locking tabs at the corners of the dress cover. Use a small flat-blade tool to release
the locking tabs and remove the dress
cover.
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4. Use a small flat-blade tool to slide the terminal position assurance (TPA) up one notch on both
ends of the connector. The TPA is located
underneath the wire dress cover.
For the larger terminals insert the J 38125-556 (GM P/N 12093647) tool to release the terminals by
inserting the tool into the terminal release cavity. For the smaller terminals insert the J 38125-560
(GM P/N 15314260) tool to release the terminals by inserting the tool into the terminal release
cavity. See the release tool cross reference in the Reference Guide of the J-38125 to ensure that
the correct release tool is used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
JST Connectors
JST CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
1. While depressing the lock, remove the connector from the component.
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2. Locate the two indents of the terminal position assurance (TPA) located on the bottom of the
connector body.
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3. Use a small flat-blade tool to very carefully raise the TPA on both sides of the connector.
IMPORTANT: The TPA cannot be removed from the connector while there are terminals present in
the connector body.
View of the TPA when removed from the connector body. 4. Use the J 38125-12A tool to release
the terminals by inserting the tool into the left side of the terminal release cavity as shown in the
graphic. Use
the tool to move the terminal release to the right with a gentle prying motion. See the release tool
cross reference in the Reference Guide of the J-38125 to ensure that the correct release tool is
used.
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5. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Kostel Connectors
KOSTEL CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
REMOVAL PROCEDURE
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View of typical connector.
View of connector in released position. 1. Locate the assist lever at the back of the connector.
Move the assist lever to the rear position. 2. Disconnect the connector from the component.
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3. Use a small flat-blade tool to remove the dress cover.
4. Slide the dress cover forward and off of the connector.
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5. The terminal positive assurance (TPA) is located in the front and rear of the connector.
6. Use a small flat-blade tool to remove the rear TPA from the connector.
7. IMPORTANT: The front TPA cannot be removed from the connector. Only move it to the release
point.
Use a small flat-blade tool to move the front TPA to the release position.
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8. Use the J 38125-213 or the J 38125-560 (GM P/N 15314260) tool to release the terminals by
inserting the tool into the terminal release cavity. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
9. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Molex Connectors
MOLEX CONNECTORS
TOOLS REQUIRED
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the top of the wire dress cover. Slide the CPA
forward.
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2. Slide the lever lock forward while pressing down on the lever lock release tab.
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3. Disconnect the connector from the component.
4. Remove the dress cover by using a flat bladed tool to release the dress cover locking tabs and
lift up on the dress cover. 5. Cut the tie wrap that holds the wires to the connector body.
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6. Use a small flat-blade tool to pry one side of the nose piece up to the pre-stage position. When
the nose piece is in the pre-staged position, the nose
piece will be raised above the connector body the length of the step in the nose piece.
7. Use a small flat-blade tool to pry the other side of the piece to the pre-stage position. If the nose
piece is higher than the first step in the nose piece,
gently push down on the nose piece until it meets with resistance from the connector body, you
should feel the nose piece click into position.
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8. Insert the J 38125-213 into the small terminal release hole on the nose piece and gently pull on
the back of the wire. 9. See the release tool cross reference in the Reference Guide of the J-38125
TERMINAL REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Repairing Connector Terminals
REPAIRING CONNECTOR TERMINALS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
Use the following repair procedures in order to repair the following: Push to Seat terminals
- Pull to Seat terminals
Some terminals do not require all of the steps shown. Skip the steps that do not apply for your
terminal repair. The J-38125 contains further information. 1. Cut off the terminal between the core
and the insulation crimp. Minimize any wire loss.For cable seal terminals, remove the seal. 2. Apply
the correct cable seal per gage size of the wire, if used.Slide the seal back along the wire in order
to enable insulation removal. 3. Remove the insulation. 4. For sealed terminals only, align the seal
with the end of the cable insulation. 5. Position the strip in the terminal.For sealed terminals,
position the strip and seal in the terminal. 6. Hand crimp the core wings. 7. Hand crimp the
insulation wings.For sealed terminals, hand crimp the insulation wings around the seal and the
cable. 8. Solder all of the hand crimp terminals excepting Micro-Pack 100.64 size. Soldering
Micro-Pack 100 World terminals may damage the terminal.
Sumitomo Connectors
SUMITOMO CONNECTORS
TOOLS REQUIRED
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Diagram Information and Instructions > Page 17832
J-38125 TERMINAL REPAIR Kit
TERMINAL REMOVAL PROCEDURE
1. Slide the lever lock forward while pressing down on the lever lock release tab.
2. Disconnect the connector from the component.
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3. Remove the dress cover by using a flat-blade tool to release the connector locking tabs and
pulling off the dress cover.
4. Relieve the tension on the nose piece retainers by inserting J-38125-12A (12094429) into the
single retainer slot on the end of the nose piece and
gently prying out the locking tab. Repeat the process for both of the nose piece locking tabs on the
opposite side of the nose piece.
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5. Once the nose piece retainers are relaxed, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should raise slightly.
6. On the opposite side of the nose piece, use the J-38125-552 (15313892) to pull up the nose
piece by hooking the tool under the nose piece and
pulling up. The nose piece should release completely. If the nose piece does not come off, repeat
the procedure on the opposite side.
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7. The illustration above identifies the entry canal where the terminal release tool will be inserted,
and the terminal cavity.
- Terminal (1)
- Entry Canal (2)
8. Insert the J-38125-553 (15315247) tool into the entry canal and pry up on the terminal retainer.
The terminal retainer is a small plastic piece on the
top of the terminal. The terminal retainer must be held up while the terminal is pulled out of the
connector.
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9. The illustration shows a cutaway view of the connector to aid the technician in releasing the
terminal retainer.
10. See the release tool cross reference in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit to ensure that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Refer to the terminal crimping procedure in the Reference Guide of the J-38125 TERMINAL
REPAIR Kit.
TERMINAL REPLACEMENT PROCEDURE
After the terminal is crimped to the wire, perform the following procedure in order to replace the
terminal. 1. Slide the new terminal into the correct cavity at the back of the connector. 2. Push the
terminal into the connector until it locks into place. The new terminal should be even with the other
terminals. Insure that the terminal is
locked in place by gently pulling on the wire.
3. To assemble the connector, reverse the connector disassembly procedure.
Terminal Position Assurance Locks
TERMINAL POSITION ASSURANCE LOCKS
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Tyco/Amp Connectors (CM 42-Way)
TYCO/AMP CONNECTORS (CM 42-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. Locate the connector position assurance (CPA) on the connector body and pull the CPA out.
The CPA is on the wire harness side of connector. 2. Disconnect the connector from the
component.
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3. Use a small flat-bladed tool to gently pry off the dress cover by inserting the tool under the cover
opposite the harness side and prying up. 4. Remove the cover.
5. Using a small flat-bladed tool, push on the side of the nose piece retainer while pushing the nose
piece forward with your thumb. This will release
the terminal position assurance (TPA).
6. Insert the J 38125-12A (GM P/N 12094429) into the corresponding terminal release cavity. The
release cavities are the 2 center rows of cavities
on one half of the connector.
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7. Pressing the J 38125-12A (GM P/N 12094429) tool in the release cavity of the terminal you are
removing, gently pull the wire out of the back of
the connector. Always remember never use force when pulling a terminal out of a connector. See
the release tool cross reference in the Reference Guide of the J-38125 to ensure that the correct
release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and crimper in the J-38125 in order to replace the terminal.
Tyco/AMP Connectors (Door Module)
TYCO/AMP CONNECTORS (DOOR MODULE)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Side view of connector.
View of top of connector. 1. Locate the assist lever and lock on the top of the connector.
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2. While depressing the lock, pull the lever over and past the lock.
3. Disconnect the connector from the component.
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4. Locate the dress cover locking tabs at the rear of the connector. Use a small flat-blade tool to
release the locking tabs. Repeat this procedure for
the other locking tab.
5. Once the locking tabs are unlocked, slide the inner connector out of the rear of the connector
housing.
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6. Use the J 38125-12A (GM P/N 12094429) tool to release the terminals by pressing on the tang.
See the release tool cross reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
7. While holding the removal tool in place, gently pull the wire out of the back of the connector.
Always remember never use force when pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Tyco/AMP Connectors (Sensor)
TYCO/AMP CONNECTORS (SENSOR)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert the J 38125-11A (GM P/N 12094430) tool into the cavity on the lower right hand face of
the connector until the terminal release tang access
panel slides over.
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3. Ensure that the terminal release tang access panel is in the correct location to access the
terminals. 4. Push the wire side of the terminal that is being removed toward the connector and
hold it in position.
5. Insert the J 38125-11A (GM P/N 12094430) into the terminal release tang access slot located
behind the access panel of the connector and press
down on the terminal while carefully pulling the terminal out of the connector. Always remember
never use force when pulling a terminal out of a connector. If the terminal is difficult to remove,
repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Tyco/AMP Connectors (0.25 Cap)
TYCO/AMP CONNECTORS (025 CAP)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component by pressing down on the connector position
assurance (CPA).
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2. Use a small flat-bladed tool to release the terminal position assurance (TPA) by inserting the tool
in the small recess on the side of the connector
and pushing up until the TPA releases from the connector body. The TPA should raise just slightly.
Do not try to remove the TPA.
IMPORTANT: The TPA on this connector cannot be removed unless the terminals are removed
first. The TPA will come out of the connector body, but only slightly. When the TPA is slightly raised
the terminals can be removed. Using excessive force to remove the TPA with the terminals still in
the connector will damage the connector.
3. Repeat the process for the other side of the connector.
4. Ensure that the TPA is in the proper position to remove the terminals.
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5. While pushing the terminal forward, insert the J 38125-24 in the release cavity above the
terminal you are removing, gently pull the wire out of the
back of the connector. Always remember never use force when pulling a terminal out of a
connector. See the release tool cross reference in the Reference Guide of the J-38125 to ensure
that the correct release tool is used.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125 in order to replace the
terminal.
Tyco/AMP Connectors (43-Way)
TYCO/AMP CONNECTORS (43-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
Follow the steps below in order to remove terminals from the connector. 1. Locate the lever lock on
the wire dress cover. Slide the lever lock away from the connector body. 2. Disconnect the
connector from the component. 3. Locate the dress cover locking tabs on the dress cover of the
connector. Using a small flat-blade tool release all of the locking tabs. 4. Once the locks are
unlocked, lift the dress cover off.
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5. IMPORTANT: Always use care when removing a terminal position assurance (TPA) in order to
avoid damaging it.
Release the TPA by inserting a small flat-blade tool into the blue locking tabs on both ends of the
connector. Gently slide the TPA up to the released position on both ends.
6. For the larger terminals insert the J 38125-13A (GM P/N 12031876-1) tool to release the
terminals by inserting the tool into the terminal release
cavity. For the smaller terminals insert the J 38125-12A (GM P/N 12094429) tool to release the
terminals by inserting the tool into the terminal release cavity. See the release tool cross reference
in the Reference Guide of the J-38125 to ensure that the correct release tool is used.
View of the release tool being used for the larger terminals.
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View of the release tool being used for the larger terminals.
View of the release tool being used for the smaller terminals. 7. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Yazaki Connectors (2-Way)
YAZAKI CONNECTORS (2-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
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Diagram Information and Instructions > Page 17847
TERMINAL REMOVAL PROCEDURE
1. Disconnect the connector from the component.
2. Insert a small flat-blade tool in the slot below the front loaded terminal position assurance (TPA)
and pry up. 3. Remove the TPA by pulling it out of the connector. 4. Push the wire side of the
terminal that is being removed toward the connector and hold it in position.
5. Insert the J 38125-553 (GM P/N 15315247) on a slight upward angle into the cavity below the
terminal to be removed. Ensure that the pointed on
the end of the tool is facing the bottom of the terminal and it stays in contact with the terminal until it
stops on the plastic terminal retainer. See the release tool cross reference in the Reference Guide
of the J-38125 to ensure that the correct release tool is used.
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6. Gently pry the plastic terminal retainer down and carefully pull the terminal out of the connector.
Always remember never use force when pulling a
terminal out of a connector. If the terminal is difficult to remove, repeat the entire procedure.
TERMINAL REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125.
Yazaki Connectors (16-Way)
YAZAKI CONNECTORS (16-WAY)
TOOLS REQUIRED
J-38125 Terminal Repair Kit
REMOVAL PROCEDURE
1. While depressing the lock, pull the two connector halves apart.
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2. Use a small flat-blade tool to very carefully push the terminal position assurance (TPA) towards
the face of the connector on both sides of the
connector.
IMPORTANT: The TPA is fragile and may break if not done carefully.
View of the male half of the connector with female terminals.
View of the female half of the connector with male terminals. 3. Use the J 38125-215 tool to release
the terminals by inserting the tool into the terminal release cavity. See the release tool cross
reference in the
Reference Guide of the J-38125 to ensure that the correct release tool is used.
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View of the female half of the connector with male terminals.
View of the male half of the connector with female terminals. 4. While holding the removal tool in
place, gently pull the wire out of the back of the connector. Always remember never use force when
pulling a
terminal out of a connector.
REPAIR PROCEDURE
Use the appropriate terminal and follow the instructions in the J-38125. Location of the terminal in
the repair tray and the proper crimp tool can be found in the appropriate connector end view.
Flat Wire Repairs
FLAT WIRE REPAIRS
NOTE: The flat wire within the flex wiring harness is not serviceable. If an open or short exists
within the flex wiring harness the complete harness
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must be replaced.
GMLAN Wiring Repairs
GMLAN WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The GM Local Area Network (GMLAN) System requires special wiring repair procedures due to the
sensitive nature of the circuitry. Follow the specific procedures and instructions when working on
GMLAN connectors and terminals.
The tool kit J-38125 contains the following items in order to repair the GMLAN wiring: DuraSeal splice sleeves
- A wire stripping tool
- J 38125-8 Crimping Tool (GM P/N 12085115)
- J 38125-5 Ultra Torch Special Tool (GM P/N 12085116)
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides necessary contact integrity for the sensitive, low
energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
GMLAN REPAIRS
IMPORTANT: When making a repair to any GMLAN network, the original wire length after the
repair must be the same length as before the repair. If the network is a twisted pair, the twist must
be maintained after the repair is completed.
GMLAN has 2 types of networks, low speed and high speed. Low speed GMLAN has a single wire
and works at slow speeds. High speed GMLAN has 2 wires in a twisted pair and works at higher
speeds. For more information on GMLAN, refer to Data Link Communications Description and
Operation.
GMLAN CONNECTOR TERMINAL REPAIR
IMPORTANT: A service terminal can be used to replace damaged connector terminals for both
high speed and low speed GMLAN systems. When making a connector terminal repair on a
GMLAN high speed system with twisted pair wires, do not untwist the wires more than necessary to
make the repair.
The terminals in the GMLAN system are made of a special metal. This metal provides the
necessary contact integrity for the sensitive, low energy circuits. These terminals are available in
the J-38125. If the individual terminals are damaged on any GMLAN connection, use the
appropriate connector repair procedure in order to repair the terminal. Refer to Connector Repairs
for the appropriate connector repair procedure.
GMLAN WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
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If a wire is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5
mm, 0.8 mm, 1.0 mm, etc.). Use the DuraSeal splice sleeves and splice crimping tool from the
J-38125. Use the following wiring repair procedures in order to ensure the integrity of the sealed
splice.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper (available from sewing supply stores) in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except coaxial.
- Do not use the DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent American wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
5. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
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Diagram Information and Instructions > Page 17853
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE:Do not solder repairs under any circumstances as this could result in the air reference being
obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen
sensor assembly must be replaced. Do not attempt to repair the wiring, connector, or terminals. In
order for the sensor to function properly it must have a clean air reference. This clean air reference
is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires,
connectors or terminals could result in the obstruction of the air reference and degrade oxygen
sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These
materials may get into the sensor, causing poor performance. Also, the sensor pigtail and harness
wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
- Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks,
etc., could block the reference air path through the lead wire.
- Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize
the ground wire sensor may rely on this ground as the only ground contact to the sensor. Removal
of the ground wire will also cause poor engine performance.
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Diagram Information and Instructions > Page 17854
- To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the
vehicle harness connector.
The engine harness may be repaired using the J-38125.
High Temperature Wiring Repairs
HIGH TEMPERATURE WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperatures, 135°C (275°F) or higher, for prolonged periods of time
may use materials i.e. wires, connectors, and shielding that has a higher heat rating than typical
wiring. When making a repair in a high temperature area observe the following: Use high temperature bulk wire rated at 150°C (302°F) continuous temperature to replace any
damaged wire.
- Replace any heat shielding that is removed.
- Cover any DuraSeal splice sleeves with SCT1 shrink tubing (available in the J-38125 Terminal
Repair kit).
- After making a wiring repair, ensure that the location of the wiring is not moved closer to the heat
source.
IDENTIFYING HIGH TEMPERATURE WIRING
Wiring that is exposed to high temperature, 135°C (275°F) or higher, for prolonged periods of time
need special considerations when making wiring repairs. Areas that may be exposed to higher
temperatures can be identified by heat resistant materials that are being used in those areas.
These materials may include heat reflective tape, moon tape, and high temperature shrink tubing.
Also conduit and other protective coverings may be used. Because conduit or similar coverings are
used throughout the vehicle regardless of the temperature, it may be necessary for the technician
to determine if an area is exposed to excessive heat before making a wiring repair. Obvious areas
of consideration would be any area located near the exhaust manifolds, catalytic converter, and
exhaust pipes.
The J-38125 contains much of the material you will need to perform repairs on areas exposed to
high heat. The kit contains the following items: DuraSeal splice sleeves to crimp and seal connections
- High temperature SCT1 shrink tubing to protect the splice sleeves
- A large sampling of common electrical terminals
- The correct crimp tool to attach the terminals to the wires
- The correct tools to remove the terminals from the connectors
The J-38125 does not contain wire that is suitable to high temperature exposure. Use high
temperature bulk wire rated at 150°C (302°F) continuous temperature of the same or larger gage
size as the original wire when repair damage wire. Also replace any reflective tape that you remove
during the repair.
HIGH TEMPERATURE WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire rated
at 150°C (302°F) continuous temperature rating of the same gage size (0.5 mm, 0.8 mm, 1.0 mm
etc.). Use the DuraSeal splice sleeves and splice crimping tool from the J-38125 and then
encapsulate the splice sleeve using the high temperature SCT1 shrink tubing. Use the following
wiring repair procedures in order to ensure the integrity of the sealed splice.
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Diagram Information and Instructions > Page 17855
1. IMPORTANT: You must perform the following procedures in the order listed. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip keeping all of the wire strands intact.
Open the harness by removing any tape.
2. Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage. 3. Cut as little wire off the harness as possible. You may
need the extra length of wire in order to change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
4. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent american wire gage
(AWG) size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
5. Slide a section of high temperature SCT1 shrink tubing down the length of wire to be spliced.
Ensure that the shrink tubing will not interfere with
the splice procedure.
6. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
7. Use the Splice Crimp Tool from the J-38125 in order to position the DuraSeal splice sleeve in the
proper color nest of the Splice Crimp Tool. The
crimp tool has three nests, 1 is for the salmon and green splice sleeve, 2 is for the blue splice
sleeve, and 3 is for the yellow splice sleeve.
8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
9. Insert the wire into the DuraSeal splice sleeve barrel until the wire hits the barrel stop.
10. Tightly close the handles of the crimp tool until the crimper handles open when released.The
crimper handles will not open until you apply the
proper amount of pressure to the splice sleeve. Repeat steps 4 and 5 for the opposite end of the
splice.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagram Information and Instructions > Page 17856
11. Using the heat torch, apply heat to the crimped area of the barrel. 12. Gradually move the heat
barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
13. Center the high temperature SCT1 shrink tube over the DuraSeal splice sleeve. 14. Using the
heat torch, apply heat to the high temperature heat shrink tubing. 15. Gradually move the heat from
the center to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Repairing Damaged Wire Insulation
REPAIRING DAMAGED WIRE INSULATION
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Diagram Information and Instructions > Page 17857
Wire Size Conversion
If the conductive portion of the wire is not damaged, locate the problem and apply tape around the
wire. If the damage is more extensive, replace the faulty segment of the wire. Refer to Splicing
Copper Wire Using Splice Clips and follow the instruction to repair the wire.
SIR/SRS Wiring Repairs
SIR/SRS WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
The Supplemental Inflatable Restraint (SIR) System/Supplemental Restraint System (SRS)
requires special wiring repair procedures due to the sensitive nature of the circuitry. Follow the
specific procedures and instructions when working with the SIR/SRS, and the wiring components,
such as connectors and terminals.
IMPORTANT: Do not use the terminals in the kit in order to replace damaged SIR/SRS system
terminals. Use either an SIR/SRS pigtail or a terminated lead from the SIR Repair Kit Tray.
The tool kit J-38125 contains the following items: -
DuraSeal splice sleeves, in order to repair the SIR/SRS wiring
- A special crimping tool
- A heat torch
- An instruction manual
The DuraSeal splice sleeves have the following 2 critical features: A special heat shrink sleeve environmentally seals the splice. The heat shrink sleeve contains a
sealing adhesive inside.
- A cross hatched (knurled) core crimp provides the necessary low resistance contact integrity for
these sensitive, low energy circuits.
The J-38125 also serves as a generic terminal repair kit. The kit contains the following items: A large sampling of common electrical terminals
- The correct tools in order to attach the terminals to the wires
- The correct tools in order to remove the terminals from the connectors
SIR/SRS CONNECTOR REPAIR (PLASTIC BODY AND TERMINAL METAL PIN)
The terminals in the SIR/SRS system are made with a special plating. This plating provides the
necessary contact integrity for the sensitive, low energy circuits. Use the J-38125 SIR/SRS
Terminal Repair Kit for repairing SIR/SRS terminals and connectors. Do not substitute any other
terminals for those in the repair kit.
The J-38125 SIR/SRS Terminal Repair Kit contains: Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
- Various connector positive assurance (CPA) locks for SIR/SRS connectors
- Base of steering column pigtail connectors part number 12085514
- Yellow vinyl electrical tape
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagram Information and Instructions > Page 17858
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the
connector body is available for connectors with more than eight terminals. The terminated leads in
the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when
replacing the connector body.
SIR/SRS COMPONENT WIRE PIGTAIL REPAIR
IMPORTANT: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail
is damaged, you must replace the entire component, with pigtail. The inflatable restraint steering
wheel module coil is an example of a pigtail component.
SIR/SRS WIRE REPAIR
IMPORTANT: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you
are repairing. You must obtain this information in order to ensure circuit integrity.
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the
same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use the DuraSeal splice sleeves and splice
crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the
integrity of the DuraSeal splice sleeves.
1. IMPORTANT: You must perform the following procedures in the listed order. Repeat the
procedure if any wire strands are damaged. You must
obtain a clean strip with all of the wire strands intact.
Open the harness by removing any tape:
- Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness
in order to avoid wire insulation damage.
- Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
- Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming
together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to
change the location of a splice.Adjust splice
locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness
branches, or connectors.
3. Strip the insulation:
- When adding a length of wire to the existing harness, use the same size wire as the original wire.
- Perform one of the following items in order to find the correct wire size: Find the wire on the schematic and convert the metric size to the equivalent AWG size.
- Use an AWG wire gage.
- If you are unsure of the wire size, begin with the largest opening in the wire stripper and work
down until achieving a clean strip of the insulation.
- Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
- Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
- If the wire is damaged, repeat this procedure after removing the damaged section.
4. Select the proper DuraSeal splice sleeve according to the wire size. Refer to the above table at
the beginning of the repair procedure for the color
coding of the DuraSeal splice sleeves and the crimp tool nests.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagram Information and Instructions > Page 17859
5. Use the Splice Crimp Tool from the J-38125 to crimp DuraSeal splice sleeve. In order to position
the DuraSeal splice sleeve in the proper color
nest of the Splice Crimp Tool. The crimp tool has three nests, 1 is for the salmon and green splice
sleeve, 2 is for the blue splice sleeve, and 3 is for the yellow splice sleeve.
6. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the
end of the barrel and the stop. The sleeve has a stop
(3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand
crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
7. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop. 8. Tightly close the
handles of the crimp tool until the crimper handles open when released.The crimper handles will
not open until you apply the
proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite
end of the splice.
9. Using the heat torch, apply heat to the crimped area of the barrel.
10. Gradually move the heat barrel to the open end of the tubing:
- The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
CONNECTOR POSITION ASSURANCE (CPA)
The connector position assurance (CPA) is a small plastic insert that fits through the locking tabs of
a connector. CPAs are used in all SIR System connectors and also in some connectors of other
systems. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA
in place in order to ensure good contact between the mating terminals of a connection.
TERMINAL POSITION ASSURANCE (TPA)
The terminal position assurance (TPA) insert resembles the plastic combs used in the control
module connectors. The TPA keeps the terminal securely seated in the connector body. Do not
remove the TPA from the connector body unless you remove a terminal for replacement.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagram Information and Instructions > Page 17860
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and
seal splice sleeve instead of a Splice Clip. Refer to Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit 1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original (except fusible link).
- The wire insulation must have the same or higher temperature rating. Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked
polyethylene with PVC.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to
determine the proper clip size crimp tool and anvil. 6. Overlap the 2 stripped wire ends and hold
them between thumb and forefinger.
7. Center the splice clip (2) over the stripped wires (1) and hold the clip in place.
- Ensure that the wires extend beyond the clip in each direction.
- Ensure that no insulation is caught under the clip.
8. Center the crimp tool over the splice clip and wires. 9. Apply steady pressure until the crimp tool
closes.Ensure that no strands of wire are cut.
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Diagram Information and Instructions > Page 17861
10. Crimp the splice on each end (2).
11. Apply 60/40 rosin core solder to the opening in the back of the clip. Follow the manufacturer's
instructions for the solder equipment.
12. Tape the splice. Roll on enough tape in order to duplicate the thickness of the insulation on the
existing wires.
13. Additional tape can be applied to the wire if the wire does not belong in a conduit or another
harness covering. Use a winding motion in order to
cover the first piece of tape.
Splicing Copper Wire Using Splice Sleeves
SPLICING COPPER WIRE USING SPLICE SLEEVES
TOOLS REQUIRED
J-38125 Terminal Repair Kit
IMPORTANT: Use only duraseal splice sleeves. Other splice sleeves may not protect the splice
from moisture or provide a good electrical connection.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagram Information and Instructions > Page 17862
Use duraseal splice sleeves to form a one-to-one splice on all types of insulation except tefzel and
coaxial. Use duraseal splice sleeves where there is special requirements such as moisture sealing.
Follow the instructions below in order to splice copper wire using duraseal splice sleeves.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
- Cut as little wire off the harness as possible.
- Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches, and
connectors. This helps prevent moisture from bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
- The wire must be of equal or greater size than the original.
- The wires insulation must have the same or higher temperature rating (4). Use general purpose insulation for areas that are not subject to high temperatures.
- Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene
with PVC.
- Cross-linked polyethylene wire is not fuel resistant. Do not use to replace wire where there is the
possibility of fuel contact.
4. Strip the insulation.
- Select the correct size opening in the wire stripper or work down from the largest size.
- Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced (1).
5. Select the proper duraseal splice sleeve (2) and the required crimp nest tool. Refer to the Crimp
and Seal Splice Table. 6. Place the duraseal splice sleeve in the J-38125-8 (GM P/N 12085115)
crimp tool nest so that the crimp falls at point 1 on the splice. 7. Close the hand crimper handles
slightly in order to hold the duraseal splice sleeve firmly in the proper crimp tool nest. 8. Insert the
wires into the duraseal splice sleeve until the wire hits the barrel stop. The splice sleeve has a stop
in the middle of the barrel in order to
prevent the wire from passing through the splice (3).
9. Close the handles of the J-38125-8 (GM P/N 12085115), until the crimper handles open when
released. The crimper handles will not open until
the proper amount of pressure is applied to the splice sleeve.
10. Shrink the insulation around the splice.
- Using the heat torch, apply heat to the crimped area of the barrel.
- Gradually move the heat barrel to the open end of the tubing. The tubing will shrink completely as the heat is moved along the insulation.
- A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is
achieved.
Splicing Inline Harness Diodes
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagram Information and Instructions > Page 17863
SPLICING INLINE HARNESS DIODES
Many vehicle electrical systems use a diode to isolate circuits and protect the components from
voltage spikes. When installing a new diode use the following procedure.
1. Open the harness.
- If the harness is taped, remove the tape.
- To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
- If the harness has a black plastic conduit, pull out the diode.
2. If the diode is taped to the harness, remove all of the tape. 3. Check and record the current flow
direction and orientation of diode. 4. Remove the inoperative diode from the harness with a suitable
soldering tool.
IMPORTANT: If the diode is located next to a connector terminal remove the terminal(s) from the
connector to prevent damage from the soldering tool.
5. Carefully strip away a section of insulation next to the old soldered portion of the wire(s). Do not
remove any more than is needed to attach the
new diode.
6. Check current flow direction of the new diode, being sure to install the diode with correct bias.
Reference the appropriate service manual wiring
schematic to obtain the correct diode installation position.
7. Attach the new diode to the wire(s) using 60/40 rosin core solder. Before soldering attach some
heat sinks (aluminum alligator clips) across the
diode wire ends to protect the diode from excessive heat. Follow the manufacturer's instruction for
the soldering equipment.
8. Reinstall terminal(s) into the connector body if previously removed.
9. IMPORTANT: To prevent shorts to ground and water intrusion, completely cover all exposed
wire and diode attachment points with tape.
Tape the diode to the harness or connector using electrical tape.
Splicing Twisted or Shielded Cable
SPLICING TWISTED OR SHIELDED CABLE
Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable
of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and
other applications where low level, sensitive signals must be carried. Follow the instructions below
in order to repair the twisted/shielded cable.
1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape. 2. Unwrap
the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the
splice is made.
3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire.
Staggering the splices by 65 mm (2.5 in) is
recommended.
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Diagram Information and Instructions > Page 17864
4. IMPORTANT: Apply the mylar tape with the aluminum side inward. This ensures good electrical
contact with the drain wire.
Re-assemble the cable. Rewrap the conductors with the mylar tape.
- Use caution not to wrap the drain wire in the tape (1).
- Follow the splicing instructions for copper wire and splice the drain wire.
- Wrap the drain wire around the conductors and tape with mylar tape.
5. Tape over the entire cable. Use a winding motion when you apply the tape.
US English/Metric Conversion
US English/Metric Conversion
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Diagram Information and Instructions > Page 17865
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
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Diagram Information and Instructions > Page 17866
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Diagram Information and Instructions > Page 17867
Wiper Motor: Connector Views
Windshield Wiper Motor
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Diagrams >
Diagram Information and Instructions > Page 17868
Wiper Motor - Rear
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Service and Repair
> Air Inlet Grille Panel Replacement
Wiper Motor: Service and Repair Air Inlet Grille Panel Replacement
AIR INLET GRILLE PANEL REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Service and Repair
> Air Inlet Grille Panel Replacement > Page 17871
Wiper Motor: Service and Repair Wiper Motor Module Grommet Replacement
WIPER MOTOR MODULE GROMMET REPLACEMENT
REMOVAL PROCEDURE
1. Remove the front wiper motor. 2. Remove the grommets and the bushings from the module.
INSTALLATION PROCEDURE
1. IMPORTANT: The metal bushing inserts need to be installed with the flat side underneath the
module bolts.
Install the grommets and the bushings to the module.
2. Install the front wiper motor.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Service and Repair
> Air Inlet Grille Panel Replacement > Page 17872
Wiper Motor: Service and Repair Wiper Motor Replacement
WIPER MOTOR REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Service and Repair
> Air Inlet Grille Panel Replacement > Page 17873
Wiper Motor: Service and Repair Wiper Motor Module Replacement
WIPER MOTOR MODULE REPLACEMENT
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Service and Repair
> Air Inlet Grille Panel Replacement > Page 17874
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Service and Repair
> Air Inlet Grille Panel Replacement > Page 17875
Wiper Motor: Service and Repair Liftgate Wiper Motor Replacement
LIFTGATE WIPER MOTOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the rear wiper arm. 2. Remove the liftgate trim panel.
3. Remove the rear wiper motor bolts. 4. Remove the motor by sliding the pivot shaft out of the rear
window grommet. 5. Disconnect the electrical connector.
INSTALLATION PROCEDURE
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Motor > Component Information > Service and Repair
> Air Inlet Grille Panel Replacement > Page 17876
1. Connect the electrical connector. 2. Install the rear wiper motor through the rear window
grommet.
3. NOTE: Refer to Fastener Notice.
Install the wiper motor bolts.
Tighten the bolts to 7 N.m (62 lb in).
4. Install the liftgate trim panel. 5. Install the wiper motor module.
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Switch > Component Information > Locations
Wiper Switch: Locations
Wiper/Washer System Components
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Switch > Component Information > Locations > Page
17880
Steering Column
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Switch > Component Information > Locations > Page
17881
Windshield Wiper Washer Switch
Chevrolet Equinox Fwd Workshop Manual (V6-3.4L (2007))
Chevrolet Workshop Manuals > Wiper and Washer Systems > Wiper Switch > Component Information > Service and Repair
> Wipers/Washer Switch Replacement
Wiper Switch: Service and Repair Wipers/Washer Switch Replacement
WIPERS/WASHER SWITCH REPLACEMENT
REMOVAL PROCEDURE
1. Remove the steering column trim covers. 2. Disconnect the wipers/washer switch connector.
3. Depress the locking tabs and remove the wiper/washer switch.
INSTALLATION PROCEDURE
1. Install the wipers/washer switch to the steering column.Ensure the locking tabs are fully
engaged. 2. Connect the wipers/washer switch harness connector. 3. Install the steering column
trim covers.